diff options
54 files changed, 13349 insertions, 1 deletions
diff --git a/.gitignore b/.gitignore index f725d58d1..64dff7dd2 100644 --- a/.gitignore +++ b/.gitignore @@ -9,4 +9,3 @@ *un~ .DS_Store */**/.DS_Store - diff --git a/.travis.yml b/.travis.yml new file mode 100644 index 000000000..32740f91a --- /dev/null +++ b/.travis.yml @@ -0,0 +1,4 @@ +before_install: sudo apt-get install libgmp3-dev +language: go +go: + - 1.2 diff --git a/ethereal/Makefile b/ethereal/Makefile new file mode 100644 index 000000000..1acf03049 --- /dev/null +++ b/ethereal/Makefile @@ -0,0 +1,22 @@ +UNAME = $(shell uname) +FILES=qml *.png +GOPATH=$(PWD) + + +# Default is building +all: + go get -d + cp *.go $(GOPATH)/src/github.com/ethereum/go-ethereum + cp -r ui $(GOPATH)/src/github.com/ethereum/go-ethereum + go build + +install: +# Linux build +ifeq ($(UNAME),Linux) + cp -r assets/* /usr/share/ethereal + cp go-ethereum /usr/local/bin/ethereal +endif +# OS X build +ifeq ($(UNAME),Darwin) + # Execute py script +endif diff --git a/ethereal/assets/debugger/debugger.qml b/ethereal/assets/debugger/debugger.qml new file mode 100644 index 000000000..3e653882c --- /dev/null +++ b/ethereal/assets/debugger/debugger.qml @@ -0,0 +1,270 @@ +import QtQuick 2.0 +import QtQuick.Controls 1.0; +import QtQuick.Layouts 1.0; +import QtQuick.Dialogs 1.0; +import QtQuick.Window 2.1; +import QtQuick.Controls.Styles 1.1 +import Ethereum 1.0 + +ApplicationWindow { + visible: false + title: "IceCREAM" + minimumWidth: 1280 + minimumHeight: 700 + width: 1290 + height: 700 + + property alias codeText: codeEditor.text + property alias dataText: rawDataField.text + + MenuBar { + Menu { + title: "Debugger" + MenuItem { + text: "Run" + shortcut: "Ctrl+r" + onTriggered: debugCurrent() + } + + MenuItem { + text: "Next" + shortcut: "Ctrl+n" + onTriggered: dbg.next() + } + } + } + + SplitView { + anchors.fill: parent + property var asmModel: ListModel { + id: asmModel + } + TableView { + id: asmTableView + width: 200 + TableViewColumn{ role: "value" ; title: "" ; width: 200 } + model: asmModel + } + + Rectangle { + color: "#00000000" + anchors.left: asmTableView.right + anchors.right: parent.right + SplitView { + orientation: Qt.Vertical + anchors.fill: parent + + Rectangle { + color: "#00000000" + height: 330 + anchors.left: parent.left + anchors.right: parent.right + + TextArea { + id: codeEditor + anchors.top: parent.top + anchors.bottom: parent.bottom + anchors.left: parent.left + anchors.right: settings.left + } + + Column { + id: settings + spacing: 5 + width: 300 + height: parent.height + anchors.right: parent.right + anchors.top: parent.top + anchors.bottom: parent.bottom + + Label { + text: "Arbitrary data" + } + TextArea { + id: rawDataField + anchors.left: parent.left + anchors.right: parent.right + height: 150 + } + + Label { + text: "Amount" + } + TextField { + id: txValue + width: 200 + placeholderText: "Amount" + validator: RegExpValidator { regExp: /\d*/ } + } + Label { + text: "Amount of gas" + } + TextField { + id: txGas + width: 200 + validator: RegExpValidator { regExp: /\d*/ } + text: "10000" + placeholderText: "Gas" + } + Label { + text: "Gas price" + } + TextField { + id: txGasPrice + width: 200 + placeholderText: "Gas price" + text: "1000000000000" + validator: RegExpValidator { regExp: /\d*/ } + } + } + } + + SplitView { + orientation: Qt.Vertical + id: inspectorPane + height: 500 + + SplitView { + orientation: Qt.Horizontal + height: 150 + + TableView { + id: stackTableView + property var stackModel: ListModel { + id: stackModel + } + height: parent.height + width: 300 + TableViewColumn{ role: "value" ; title: "Temp" ; width: 200 } + model: stackModel + } + + TableView { + id: memoryTableView + property var memModel: ListModel { + id: memModel + } + height: parent.height + width: parent.width - stackTableView.width + TableViewColumn{ id:mnumColmn ; role: "num" ; title: "#" ; width: 50} + TableViewColumn{ role: "value" ; title: "Memory" ; width: 750} + model: memModel + } + } + + Rectangle { + height: 100 + width: parent.width + TableView { + id: storageTableView + property var memModel: ListModel { + id: storageModel + } + height: parent.height + width: parent.width + TableViewColumn{ id: key ; role: "key" ; title: "#" ; width: storageTableView.width / 2} + TableViewColumn{ role: "value" ; title: "Storage" ; width: storageTableView.width / 2} + model: storageModel + } + } + + Rectangle { + height: 200 + width: parent.width + TableView { + id: logTableView + property var logModel: ListModel { + id: logModel + } + height: parent.height + width: parent.width + TableViewColumn{ id: message ; role: "message" ; title: "log" ; width: logTableView.width } + model: logModel + } + } + } + } + } + } + + toolBar: ToolBar { + RowLayout { + spacing: 5 + + Button { + property var enabled: true + id: debugStart + onClicked: { + debugCurrent() + } + text: "Debug" + } + + Button { + property var enabled: true + id: debugNextButton + onClicked: { + dbg.next() + } + text: "Next" + } + CheckBox { + id: breakEachLine + objectName: "breakEachLine" + text: "Break each instruction" + checked: true + } + } + } + + function debugCurrent() { + dbg.debug(txValue.text, txGas.text, txGasPrice.text, codeEditor.text, rawDataField.text) + } + + function setAsm(asm) { + asmModel.append({asm: asm}) + } + + function clearAsm() { + asmModel.clear() + } + + function setInstruction(num) { + asmTableView.selection.clear() + asmTableView.selection.select(num) + } + + function setMem(mem) { + memModel.append({num: mem.num, value: mem.value}) + } + function clearMem(){ + memModel.clear() + } + + function setStack(stack) { + stackModel.append({value: stack}) + } + function addDebugMessage(message){ + debuggerLog.append({value: message}) + } + + function clearStack() { + stackModel.clear() + } + + function clearStorage() { + storageModel.clear() + } + + function setStorage(storage) { + storageModel.append({key: storage.key, value: storage.value}) + } + + function setLog(msg) { + logModel.insert(0, {message: msg}) + } + + function clearLog() { + logModel.clear() + } +} diff --git a/ethereal/assets/ext/big.js b/ethereal/assets/ext/big.js new file mode 100644 index 000000000..db633fd2f --- /dev/null +++ b/ethereal/assets/ext/big.js @@ -0,0 +1,380 @@ +var bigInt = (function () { + var base = 10000000, logBase = 7; + var sign = { + positive: false, + negative: true + }; + + var normalize = function (first, second) { + var a = first.value, b = second.value; + var length = a.length > b.length ? a.length : b.length; + for (var i = 0; i < length; i++) { + a[i] = a[i] || 0; + b[i] = b[i] || 0; + } + for (var i = length - 1; i >= 0; i--) { + if (a[i] === 0 && b[i] === 0) { + a.pop(); + b.pop(); + } else break; + } + if (!a.length) a = [0], b = [0]; + first.value = a; + second.value = b; + }; + + var parse = function (text, first) { + if (typeof text === "object") return text; + text += ""; + var s = sign.positive, value = []; + if (text[0] === "-") { + s = sign.negative; + text = text.slice(1); + } + var base = 10; + if (text.slice(0, 2) == "0x") { + base = 16; + text = text.slice(2); + } + else { + var texts = text.split("e"); + if (texts.length > 2) throw new Error("Invalid integer"); + if (texts[1]) { + var exp = texts[1]; + if (exp[0] === "+") exp = exp.slice(1); + exp = parse(exp); + if (exp.lesser(0)) throw new Error("Cannot include negative exponent part for integers"); + while (exp.notEquals(0)) { + texts[0] += "0"; + exp = exp.prev(); + } + } + text = texts[0]; + } + if (text === "-0") text = "0"; + text = text.toUpperCase(); + var isValid = (base == 16 ? /^[0-9A-F]*$/ : /^[0-9]+$/).test(text); + if (!isValid) throw new Error("Invalid integer"); + if (base == 16) { + var val = bigInt(0); + while (text.length) { + v = text.charCodeAt(0) - 48; + if (v > 9) + v -= 7; + text = text.slice(1); + val = val.times(16).plus(v); + } + return val; + } + else { + while (text.length) { + var divider = text.length > logBase ? text.length - logBase : 0; + value.push(+text.slice(divider)); + text = text.slice(0, divider); + } + var val = bigInt(value, s); + if (first) normalize(first, val); + return val; + } + }; + + var goesInto = function (a, b) { + var a = bigInt(a, sign.positive), b = bigInt(b, sign.positive); + if (a.equals(0)) throw new Error("Cannot divide by 0"); + var n = 0; + do { + var inc = 1; + var c = bigInt(a.value, sign.positive), t = c.times(10); + while (t.lesser(b)) { + c = t; + inc *= 10; + t = t.times(10); + } + while (c.lesserOrEquals(b)) { + b = b.minus(c); + n += inc; + } + } while (a.lesserOrEquals(b)); + + return { + remainder: b.value, + result: n + }; + }; + + var bigInt = function (value, s) { + var self = { + value: value, + sign: s + }; + var o = { + value: value, + sign: s, + negate: function (m) { + var first = m || self; + return bigInt(first.value, !first.sign); + }, + abs: function (m) { + var first = m || self; + return bigInt(first.value, sign.positive); + }, + add: function (n, m) { + var s, first = self, second; + if (m) (first = parse(n)) && (second = parse(m)); + else second = parse(n, first); + s = first.sign; + if (first.sign !== second.sign) { + first = bigInt(first.value, sign.positive); + second = bigInt(second.value, sign.positive); + return s === sign.positive ? + o.subtract(first, second) : + o.subtract(second, first); + } + normalize(first, second); + var a = first.value, b = second.value; + var result = [], + carry = 0; + for (var i = 0; i < a.length || carry > 0; i++) { + var sum = (a[i] || 0) + (b[i] || 0) + carry; + carry = sum >= base ? 1 : 0; + sum -= carry * base; + result.push(sum); + } + return bigInt(result, s); + }, + plus: function (n, m) { + return o.add(n, m); + }, + subtract: function (n, m) { + var first = self, second; + if (m) (first = parse(n)) && (second = parse(m)); + else second = parse(n, first); + if (first.sign !== second.sign) return o.add(first, o.negate(second)); + if (first.sign === sign.negative) return o.subtract(o.negate(second), o.negate(first)); + if (o.compare(first, second) === -1) return o.negate(o.subtract(second, first)); + var a = first.value, b = second.value; + var result = [], + borrow = 0; + for (var i = 0; i < a.length; i++) { + var tmp = a[i] - borrow; + borrow = tmp < b[i] ? 1 : 0; + var minuend = (borrow * base) + tmp - b[i]; + result.push(minuend); + } + return bigInt(result, sign.positive); + }, + minus: function (n, m) { + return o.subtract(n, m); + }, + multiply: function (n, m) { + var s, first = self, second; + if (m) (first = parse(n)) && (second = parse(m)); + else second = parse(n, first); + s = first.sign !== second.sign; + var a = first.value, b = second.value; + var resultSum = []; + for (var i = 0; i < a.length; i++) { + resultSum[i] = []; + var j = i; + while (j--) { + resultSum[i].push(0); + } + } + var carry = 0; + for (var i = 0; i < a.length; i++) { + var x = a[i]; + for (var j = 0; j < b.length || carry > 0; j++) { + var y = b[j]; + var product = y ? (x * y) + carry : carry; + carry = product > base ? Math.floor(product / base) : 0; + product -= carry * base; + resultSum[i].push(product); + } + } + var max = -1; + for (var i = 0; i < resultSum.length; i++) { + var len = resultSum[i].length; + if (len > max) max = len; + } + var result = [], carry = 0; + for (var i = 0; i < max || carry > 0; i++) { + var sum = carry; + for (var j = 0; j < resultSum.length; j++) { + sum += resultSum[j][i] || 0; + } + carry = sum > base ? Math.floor(sum / base) : 0; + sum -= carry * base; + result.push(sum); + } + return bigInt(result, s); + }, + times: function (n, m) { + return o.multiply(n, m); + }, + divmod: function (n, m) { + var s, first = self, second; + if (m) (first = parse(n)) && (second = parse(m)); + else second = parse(n, first); + s = first.sign !== second.sign; + if (bigInt(first.value, first.sign).equals(0)) return { + quotient: bigInt([0], sign.positive), + remainder: bigInt([0], sign.positive) + }; + if (second.equals(0)) throw new Error("Cannot divide by zero"); + var a = first.value, b = second.value; + var result = [], remainder = []; + for (var i = a.length - 1; i >= 0; i--) { + var n = [a[i]].concat(remainder); + var quotient = goesInto(b, n); + result.push(quotient.result); + remainder = quotient.remainder; + } + result.reverse(); + return { + quotient: bigInt(result, s), + remainder: bigInt(remainder, first.sign) + }; + }, + divide: function (n, m) { + return o.divmod(n, m).quotient; + }, + over: function (n, m) { + return o.divide(n, m); + }, + mod: function (n, m) { + return o.divmod(n, m).remainder; + }, + pow: function (n, m) { + var first = self, second; + if (m) (first = parse(n)) && (second = parse(m)); + else second = parse(n, first); + var a = first, b = second; + if (b.lesser(0)) return ZERO; + if (b.equals(0)) return ONE; + var result = bigInt(a.value, a.sign); + + if (b.mod(2).equals(0)) { + var c = result.pow(b.over(2)); + return c.times(c); + } else { + return result.times(result.pow(b.minus(1))); + } + }, + next: function (m) { + var first = m || self; + return o.add(first, 1); + }, + prev: function (m) { + var first = m || self; + return o.subtract(first, 1); + }, + compare: function (n, m) { + var first = self, second; + if (m) (first = parse(n)) && (second = parse(m, first)); + else second = parse(n, first); + normalize(first, second); + if (first.value.length === 1 && second.value.length === 1 && first.value[0] === 0 && second.value[0] === 0) return 0; + if (second.sign !== first.sign) return first.sign === sign.positive ? 1 : -1; + var multiplier = first.sign === sign.positive ? 1 : -1; + var a = first.value, b = second.value; + for (var i = a.length - 1; i >= 0; i--) { + if (a[i] > b[i]) return 1 * multiplier; + if (b[i] > a[i]) return -1 * multiplier; + } + return 0; + }, + compareAbs: function (n, m) { + var first = self, second; + if (m) (first = parse(n)) && (second = parse(m, first)); + else second = parse(n, first); + first.sign = second.sign = sign.positive; + return o.compare(first, second); + }, + equals: function (n, m) { + return o.compare(n, m) === 0; + }, + notEquals: function (n, m) { + return !o.equals(n, m); + }, + lesser: function (n, m) { + return o.compare(n, m) < 0; + }, + greater: function (n, m) { + return o.compare(n, m) > 0; + }, + greaterOrEquals: function (n, m) { + return o.compare(n, m) >= 0; + }, + lesserOrEquals: function (n, m) { + return o.compare(n, m) <= 0; + }, + isPositive: function (m) { + var first = m || self; + return first.sign === sign.positive; + }, + isNegative: function (m) { + var first = m || self; + return first.sign === sign.negative; + }, + isEven: function (m) { + var first = m || self; + return first.value[0] % 2 === 0; + }, + isOdd: function (m) { + var first = m || self; + return first.value[0] % 2 === 1; + }, + toString: function (m) { + var first = m || self; + var str = "", len = first.value.length; + while (len--) { + if (first.value[len].toString().length === 8) str += first.value[len]; + else str += (base.toString() + first.value[len]).slice(-logBase); + } + while (str[0] === "0") { + str = str.slice(1); + } + if (!str.length) str = "0"; + var s = (first.sign === sign.positive || str == "0") ? "" : "-"; + return s + str; + }, + toHex: function (m) { + var first = m || self; + var str = ""; + var l = this.abs(); + while (l > 0) { + var qr = l.divmod(256); + var b = qr.remainder.toJSNumber(); + str = (b >> 4).toString(16) + (b & 15).toString(16) + str; + l = qr.quotient; + } + return (this.isNegative() ? "-" : "") + "0x" + str; + }, + toJSNumber: function (m) { + return +o.toString(m); + }, + valueOf: function (m) { + return o.toJSNumber(m); + } + }; + return o; + }; + + var ZERO = bigInt([0], sign.positive); + var ONE = bigInt([1], sign.positive); + var MINUS_ONE = bigInt([1], sign.negative); + + var fnReturn = function (a) { + if (typeof a === "undefined") return ZERO; + return parse(a); + }; + fnReturn.zero = ZERO; + fnReturn.one = ONE; + fnReturn.minusOne = MINUS_ONE; + return fnReturn; +})(); + +if (typeof module !== "undefined") { + module.exports = bigInt; +} + diff --git a/ethereal/assets/ext/ethereum.js b/ethereal/assets/ext/ethereum.js new file mode 100644 index 000000000..de6fb0255 --- /dev/null +++ b/ethereal/assets/ext/ethereum.js @@ -0,0 +1,145 @@ +// Main Ethereum library +window.eth = { + prototype: Object(), + + // Retrieve block + // + // Either supply a number or a string. Type is determent for the lookup method + // string - Retrieves the block by looking up the hash + // number - Retrieves the block by looking up the block number + getBlock: function(numberOrHash, cb) { + var func; + if(typeof numberOrHash == "string") { + func = "getBlockByHash"; + } else { + func = "getBlockByNumber"; + } + postData({call: func, args: [numberOrHash]}, cb); + }, + + // Create transaction + // + // Transact between two state objects + transact: function(sec, recipient, value, gas, gasPrice, data, cb) { + postData({call: "transact", args: [sec, recipient, value, gas, gasPrice, data]}, cb); + }, + + create: function(sec, value, gas, gasPrice, init, body, cb) { + postData({call: "create", args: [sec, value, gas, gasPrice, init, body]}, cb); + }, + + getStorageAt: function(address, storageAddress, cb) { + postData({call: "getStorage", args: [address, storageAddress]}, cb); + }, + + getStateKeyVals: function(address, cb){ + postData({call: "getStateKeyVals", args: [address]}, cb); + }, + + getKey: function(cb) { + postData({call: "getKey"}, cb); + }, + + getTxCountAt: function(address, cb) { + postData({call: "getTxCountAt", args: [address]}, cb); + }, + getIsMining: function(cb){ + postData({call: "getIsMining"}, cb) + }, + getIsListening: function(cb){ + postData({call: "getIsListening"}, cb) + }, + getCoinBase: function(cb){ + postData({call: "getCoinBase"}, cb); + }, + getPeerCount: function(cb){ + postData({call: "getPeerCount"}, cb); + }, + getBalanceAt: function(address, cb) { + postData({call: "getBalance", args: [address]}, cb); + }, + getTransactionsFor: function(address, cb) { + postData({call: "getTransactionsFor", args: [address]}, cb); + }, + + getSecretToAddress: function(sec, cb) { + postData({call: "getSecretToAddress", args: [sec]}, cb); + }, + + watch: function(address, storageAddrOrCb, cb) { + var ev; + if(cb === undefined) { + cb = storageAddrOrCb; + storageAddrOrCb = ""; + ev = "object:"+address; + } else { + ev = "storage:"+address+":"+storageAddrOrCb; + } + + eth.on(ev, cb) + + postData({call: "watch", args: [address, storageAddrOrCb]}); + }, + + disconnect: function(address, storageAddrOrCb, cb) { + var ev; + if(cb === undefined) { + cb = storageAddrOrCb; + storageAddrOrCb = ""; + ev = "object:"+address; + } else { + ev = "storage:"+address+":"+storageAddrOrCb; + } + + eth.off(ev, cb) + + postData({call: "disconnect", args: [address, storageAddrOrCb]}); + }, + + set: function(props) { + postData({call: "set", args: props}); + }, + + on: function(event, cb) { + if(eth._onCallbacks[event] === undefined) { + eth._onCallbacks[event] = []; + } + + eth._onCallbacks[event].push(cb); + + return this + }, + + off: function(event, cb) { + if(eth._onCallbacks[event] !== undefined) { + var callbacks = eth._onCallbacks[event]; + for(var i = 0; i < callbacks.length; i++) { + if(callbacks[i] === cb) { + delete callbacks[i]; + } + } + } + + return this + }, + + trigger: function(event, data) { + var callbacks = eth._onCallbacks[event]; + if(callbacks !== undefined) { + for(var i = 0; i < callbacks.length; i++) { + // Figure out whether the returned data was an array + // array means multiple return arguments (multiple params) + if(data instanceof Array) { + callbacks[i].apply(this, data); + } else { + callbacks[i].call(this, data); + } + } + } + }, + + +} +window.eth._callbacks = {} +window.eth._onCallbacks = {} + diff --git a/ethereal/assets/ext/pre.js b/ethereal/assets/ext/pre.js new file mode 100644 index 000000000..ca520f152 --- /dev/null +++ b/ethereal/assets/ext/pre.js @@ -0,0 +1,58 @@ +function debug(/**/) { + var args = arguments; + var msg = "" + for(var i = 0; i < args.length; i++){ + if(typeof args[i] === "object") { + msg += " " + JSON.stringify(args[i]) + } else { + msg += " " + args[i] + } + } + + postData({call:"debug", args:[msg]}) + document.getElementById("debug").innerHTML += "<br>" + msg +} + +// Helper function for generating pseudo callbacks and sending data to the QML part of the application +function postData(data, cb) { + data._seed = Math.floor(Math.random() * 1000000) + if(cb) { + eth._callbacks[data._seed] = cb; + } + + if(data.args === undefined) { + data.args = []; + } + + navigator.qt.postMessage(JSON.stringify(data)); +} + +navigator.qt.onmessage = function(ev) { + var data = JSON.parse(ev.data) + + if(data._event !== undefined) { + eth.trigger(data._event, data.data); + } else { + if(data._seed) { + var cb = eth._callbacks[data._seed]; + if(cb) { + // Figure out whether the returned data was an array + // array means multiple return arguments (multiple params) + if(data.data instanceof Array) { + cb.apply(this, data.data) + } else { + cb.call(this, data.data) + } + + // Remove the "trigger" callback + delete eth._callbacks[ev._seed]; + } + } + } +} + +window.onerror = function(message, file, lineNumber, column, errorObj) { + debug(file, message, lineNumber+":"+column, errorObj); + + return false; +} diff --git a/ethereal/assets/ext/string.js b/ethereal/assets/ext/string.js new file mode 100644 index 000000000..2473b5c36 --- /dev/null +++ b/ethereal/assets/ext/string.js @@ -0,0 +1,58 @@ +String.prototype.pad = function(l, r) { + if (r === undefined) { + r = l + if (!(this.substr(0, 2) == "0x" || /^\d+$/.test(this))) + l = 0 + } + var ret = this.bin(); + while (ret.length < l) + ret = "\0" + ret + while (ret.length < r) + ret = ret + "\0" + return ret; +} + +String.prototype.unpad = function() { + var i = this.length; + while (i && this[i - 1] == "\0") + --i + return this.substr(0, i) +} + +String.prototype.bin = function() { + if (this.substr(0, 2) == "0x") { + bytes = [] + var i = 2; + + // Check if it's odd - pad with a zero if so. + if (this.length % 2) + bytes.push(parseInt(this.substr(i++, 1), 16)) + + for (; i < this.length - 1; i += 2) + bytes.push(parseInt(this.substr(i, 2), 16)); + + return String.fromCharCode.apply(String, bytes); + } else if (/^\d+$/.test(this)) + return bigInt(this.substr(0)).toHex().bin() + + // Otherwise we'll return the "String" object instead of an actual string + return this.substr(0, this.length) +} + +String.prototype.unbin = function() { + var i, l, o = ''; + for(i = 0, l = this.length; i < l; i++) { + var n = this.charCodeAt(i).toString(16); + o += n.length < 2 ? '0' + n : n; + } + + return "0x" + o; +} + +String.prototype.dec = function() { + return bigInt(this.substr(0)).toString() +} + +String.prototype.hex = function() { + return bigInt(this.substr(0)).toHex() +} diff --git a/ethereal/assets/facet.png b/ethereal/assets/facet.png Binary files differnew file mode 100644 index 000000000..49a266e96 --- /dev/null +++ b/ethereal/assets/facet.png diff --git a/ethereal/assets/heart.png b/ethereal/assets/heart.png Binary files differnew file mode 100644 index 000000000..3c874ab7f --- /dev/null +++ b/ethereal/assets/heart.png diff --git a/ethereal/assets/muted/codemirror.css b/ethereal/assets/muted/codemirror.css new file mode 100644 index 000000000..098a317a2 --- /dev/null +++ b/ethereal/assets/muted/codemirror.css @@ -0,0 +1,272 @@ +/* BASICS */ + +.CodeMirror { + /* Set height, width, borders, and global font properties here */ + font-family: monospace; + height: 300px; +} +.CodeMirror-scroll { + /* Set scrolling behaviour here */ + overflow: auto; +} + +/* PADDING */ + +.CodeMirror-lines { + padding: 4px 0; /* Vertical padding around content */ +} +.CodeMirror pre { + padding: 0 4px; /* Horizontal padding of content */ +} + +.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler { + background-color: white; /* The little square between H and V scrollbars */ +} + +/* GUTTER */ + +.CodeMirror-gutters { + border-right: 1px solid #ddd; + background-color: #f7f7f7; + white-space: nowrap; +} +.CodeMirror-linenumbers {} +.CodeMirror-linenumber { + padding: 0 3px 0 5px; + min-width: 20px; + text-align: right; + color: #999; + -moz-box-sizing: content-box; + box-sizing: content-box; +} + +/* CURSOR */ + +.CodeMirror div.CodeMirror-cursor { + border-left: 1px solid black; +} +/* Shown when moving in bi-directional text */ +.CodeMirror div.CodeMirror-secondarycursor { + border-left: 1px solid silver; +} +.CodeMirror.cm-keymap-fat-cursor div.CodeMirror-cursor { + width: auto; + border: 0; + background: #7e7; +} +/* Can style cursor different in overwrite (non-insert) mode */ +div.CodeMirror-overwrite div.CodeMirror-cursor {} + +.cm-tab { display: inline-block; } + +.CodeMirror-ruler { + border-left: 1px solid #ccc; + position: absolute; +} + +/* DEFAULT THEME */ + +.cm-s-default .cm-keyword {color: #708;} +.cm-s-default .cm-atom {color: #219;} +.cm-s-default .cm-number {color: #164;} +.cm-s-default .cm-def {color: #00f;} +.cm-s-default .cm-variable, +.cm-s-default .cm-punctuation, +.cm-s-default .cm-property, +.cm-s-default .cm-operator {} +.cm-s-default .cm-variable-2 {color: #05a;} +.cm-s-default .cm-variable-3 {color: #085;} +.cm-s-default .cm-comment {color: #a50;} +.cm-s-default .cm-string {color: #a11;} +.cm-s-default .cm-string-2 {color: #f50;} +.cm-s-default .cm-meta {color: #555;} +.cm-s-default .cm-qualifier {color: #555;} +.cm-s-default .cm-builtin {color: #30a;} +.cm-s-default .cm-bracket {color: #997;} +.cm-s-default .cm-tag {color: #170;} +.cm-s-default .cm-attribute {color: #00c;} +.cm-s-default .cm-header {color: blue;} +.cm-s-default .cm-quote {color: #090;} +.cm-s-default .cm-hr {color: #999;} +.cm-s-default .cm-link {color: #00c;} + +.cm-negative {color: #d44;} +.cm-positive {color: #292;} +.cm-header, .cm-strong {font-weight: bold;} +.cm-em {font-style: italic;} +.cm-link {text-decoration: underline;} + +.cm-s-default .cm-error {color: #f00;} +.cm-invalidchar {color: #f00;} + +div.CodeMirror span.CodeMirror-matchingbracket {color: #0f0;} +div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;} +.CodeMirror-activeline-background {background: #e8f2ff;} + +/* STOP */ + +/* The rest of this file contains styles related to the mechanics of + the editor. You probably shouldn't touch them. */ + +.CodeMirror { + line-height: 1; + position: relative; + overflow: hidden; + background: white; + color: black; +} + +.CodeMirror-scroll { + /* 30px is the magic margin used to hide the element's real scrollbars */ + /* See overflow: hidden in .CodeMirror */ + margin-bottom: -30px; margin-right: -30px; + padding-bottom: 30px; + height: 100%; + outline: none; /* Prevent dragging from highlighting the element */ + position: relative; + -moz-box-sizing: content-box; + box-sizing: content-box; +} +.CodeMirror-sizer { + position: relative; + border-right: 30px solid transparent; + -moz-box-sizing: content-box; + box-sizing: content-box; +} + +/* The fake, visible scrollbars. Used to force redraw during scrolling + before actuall scrolling happens, thus preventing shaking and + flickering artifacts. */ +.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler { + position: absolute; + z-index: 6; + display: none; +} +.CodeMirror-vscrollbar { + right: 0; top: 0; + overflow-x: hidden; + overflow-y: scroll; +} +.CodeMirror-hscrollbar { + bottom: 0; left: 0; + overflow-y: hidden; + overflow-x: scroll; +} +.CodeMirror-scrollbar-filler { + right: 0; bottom: 0; +} +.CodeMirror-gutter-filler { + left: 0; bottom: 0; +} + +.CodeMirror-gutters { + position: absolute; left: 0; top: 0; + padding-bottom: 30px; + z-index: 3; +} +.CodeMirror-gutter { + white-space: normal; + height: 100%; + -moz-box-sizing: content-box; + box-sizing: content-box; + padding-bottom: 30px; + margin-bottom: -32px; + display: inline-block; + /* Hack to make IE7 behave */ + *zoom:1; + *display:inline; +} +.CodeMirror-gutter-elt { + position: absolute; + cursor: default; + z-index: 4; +} + +.CodeMirror-lines { + cursor: text; +} +.CodeMirror pre { + /* Reset some styles that the rest of the page might have set */ + -moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0; + border-width: 0; + background: transparent; + font-family: inherit; + font-size: inherit; + margin: 0; + white-space: pre; + word-wrap: normal; + line-height: inherit; + color: inherit; + z-index: 2; + position: relative; + overflow: visible; +} +.CodeMirror-wrap pre { + word-wrap: break-word; + white-space: pre-wrap; + word-break: normal; +} + +.CodeMirror-linebackground { + position: absolute; + left: 0; right: 0; top: 0; bottom: 0; + z-index: 0; +} + +.CodeMirror-linewidget { + position: relative; + z-index: 2; + overflow: auto; +} + +.CodeMirror-widget {} + +.CodeMirror-wrap .CodeMirror-scroll { + overflow-x: hidden; +} + +.CodeMirror-measure { + position: absolute; + width: 100%; + height: 0; + overflow: hidden; + visibility: hidden; +} +.CodeMirror-measure pre { position: static; } + +.CodeMirror div.CodeMirror-cursor { + position: absolute; + border-right: none; + width: 0; +} + +div.CodeMirror-cursors { + visibility: hidden; + position: relative; + z-index: 1; +} +.CodeMirror-focused div.CodeMirror-cursors { + visibility: visible; +} + +.CodeMirror-selected { background: #d9d9d9; } +.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; } +.CodeMirror-crosshair { cursor: crosshair; } + +.cm-searching { + background: #ffa; + background: rgba(255, 255, 0, .4); +} + +/* IE7 hack to prevent it from returning funny offsetTops on the spans */ +.CodeMirror span { *vertical-align: text-bottom; } + +/* Used to force a border model for a node */ +.cm-force-border { padding-right: .1px; } + +@media print { + /* Hide the cursor when printing */ + .CodeMirror div.CodeMirror-cursors { + visibility: hidden; + } +} diff --git a/ethereal/assets/muted/debugger.html b/ethereal/assets/muted/debugger.html new file mode 100644 index 000000000..b7552f030 --- /dev/null +++ b/ethereal/assets/muted/debugger.html @@ -0,0 +1,53 @@ +<!doctype> +<html> +<head> +<style type="text/css"> + html, body { + margin: 0; padding: 0; + min-height: 100%; + } + + #debugger { + height: 100%; + font-family: "Monaco" + } + #debugger .line { + overflow: none; + } + #debugger .col1, #debugger .col2 { + float: left; + padding: 3px; + } + #debugger .col1 { + width: 10px; + padding-left: 10px + -webkit-touch-callout: none; + -webkit-user-select: none; + -khtml-user-select: none; + -moz-user-select: none; + -ms-user-select: none; + user-select: none; + } + #debugger .col2 { + width: 90%; + } + .prompt { + color: "#5089D4"; + } +</style> + +</head> + +<body> +<div id="debugger"> + <div class="line"> + <div class="col1 prompt"> + > + </div> + <div class="col2" contenteditable> + </div> + </div> +</div> + +</body> +</html> diff --git a/ethereal/assets/muted/eclipse.css b/ethereal/assets/muted/eclipse.css new file mode 100644 index 000000000..317218e3d --- /dev/null +++ b/ethereal/assets/muted/eclipse.css @@ -0,0 +1,23 @@ +.cm-s-eclipse span.cm-meta {color: #FF1717;} +.cm-s-eclipse span.cm-keyword { line-height: 1em; font-weight: bold; color: #7F0055; } +.cm-s-eclipse span.cm-atom {color: #219;} +.cm-s-eclipse span.cm-number {color: #164;} +.cm-s-eclipse span.cm-def {color: #00f;} +.cm-s-eclipse span.cm-variable {color: black;} +.cm-s-eclipse span.cm-variable-2 {color: #0000C0;} +.cm-s-eclipse span.cm-variable-3 {color: #0000C0;} +.cm-s-eclipse span.cm-property {color: black;} +.cm-s-eclipse span.cm-operator {color: black;} +.cm-s-eclipse span.cm-comment {color: #3F7F5F;} +.cm-s-eclipse span.cm-string {color: #2A00FF;} +.cm-s-eclipse span.cm-string-2 {color: #f50;} +.cm-s-eclipse span.cm-qualifier {color: #555;} +.cm-s-eclipse span.cm-builtin {color: #30a;} +.cm-s-eclipse span.cm-bracket {color: #cc7;} +.cm-s-eclipse span.cm-tag {color: #170;} +.cm-s-eclipse span.cm-attribute {color: #00c;} +.cm-s-eclipse span.cm-link {color: #219;} +.cm-s-eclipse span.cm-error {color: #f00;} + +.cm-s-eclipse .CodeMirror-activeline-background {background: #e8f2ff !important;} +.cm-s-eclipse .CodeMirror-matchingbracket {outline:1px solid grey; color:black !important;} diff --git a/ethereal/assets/muted/index.html b/ethereal/assets/muted/index.html new file mode 100644 index 000000000..14949b5ac --- /dev/null +++ b/ethereal/assets/muted/index.html @@ -0,0 +1,80 @@ +<!doctype> +<html> +<head> +<title>Mutan Editor</title> +<link rel="stylesheet" href="codemirror.css"> +<link rel="stylesheet" href="eclipse.css"> +<script src="lib/codemirror.js"></script> +<script src="lib/matchbrackets.js"></script> +<script src="lib/go.js"></script> +<script src="muted.js"></script> + +<style type="text/css"> + html, body { + margin: 0; padding: 0; + min-height: 100%; + } + + #debugger { + height: 30%; + font-family: "Monaco"; + border-top: 5px solid grey; + } + #debugger .line { + overflow: none; + } + #debugger .col1, #debugger .col2 { + float: left; + padding: 3px; + } + #debugger .col1 { + width: 10px; + padding-left: 10px + -webkit-touch-callout: none; + -webkit-user-select: none; + -khtml-user-select: none; + -moz-user-select: none; + -ms-user-select: none; + user-select: none; + } + #debugger .col2 { + width: 90%; + } + .prompt { + color: "#5089D4"; + } + + .CodeMirror { + height: 70%; + font-size: 14pt; + } +</style> +</head> + +<body> +<textarea id="editor"></textarea> + +<div id="debugger"> + <div class="line"> + <div class="col1 prompt"> + > + </div> + <div class="col2" contenteditable> + </div> + </div> +</div> + +<script> + var textArea = document.querySelector("#editor") + var editor = CodeMirror.fromTextArea(textArea, { + theme: "eclipse", + mode: "text/html", + lineNumbers: true, + mode: "text/x-go", + indentUnit: 8, + tabSize: 8, + indentWithTabs: true, + }); +</script> +</body> +</html> diff --git a/ethereal/assets/muted/lib/codemirror.js b/ethereal/assets/muted/lib/codemirror.js new file mode 100644 index 000000000..0ab217711 --- /dev/null +++ b/ethereal/assets/muted/lib/codemirror.js @@ -0,0 +1,7526 @@ +// This is CodeMirror (http://codemirror.net), a code editor +// implemented in JavaScript on top of the browser's DOM. +// +// You can find some technical background for some of the code below +// at http://marijnhaverbeke.nl/blog/#cm-internals . + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + module.exports = mod(); + else if (typeof define == "function" && define.amd) // AMD + return define([], mod); + else // Plain browser env + this.CodeMirror = mod(); +})(function() { + "use strict"; + + // BROWSER SNIFFING + + // Kludges for bugs and behavior differences that can't be feature + // detected are enabled based on userAgent etc sniffing. + + var gecko = /gecko\/\d/i.test(navigator.userAgent); + // ie_uptoN means Internet Explorer version N or lower + var ie_upto10 = /MSIE \d/.test(navigator.userAgent); + var ie_upto7 = ie_upto10 && (document.documentMode == null || document.documentMode < 8); + var ie_upto8 = ie_upto10 && (document.documentMode == null || document.documentMode < 9); + var ie_upto9 = ie_upto10 && (document.documentMode == null || document.documentMode < 10); + var ie_11up = /Trident\/([7-9]|\d{2,})\./.test(navigator.userAgent); + var ie = ie_upto10 || ie_11up; + var webkit = /WebKit\//.test(navigator.userAgent); + var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(navigator.userAgent); + var chrome = /Chrome\//.test(navigator.userAgent); + var presto = /Opera\//.test(navigator.userAgent); + var safari = /Apple Computer/.test(navigator.vendor); + var khtml = /KHTML\//.test(navigator.userAgent); + var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(navigator.userAgent); + var phantom = /PhantomJS/.test(navigator.userAgent); + + var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent); + // This is woefully incomplete. Suggestions for alternative methods welcome. + var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(navigator.userAgent); + var mac = ios || /Mac/.test(navigator.platform); + var windows = /win/i.test(navigator.platform); + + var presto_version = presto && navigator.userAgent.match(/Version\/(\d*\.\d*)/); + if (presto_version) presto_version = Number(presto_version[1]); + if (presto_version && presto_version >= 15) { presto = false; webkit = true; } + // Some browsers use the wrong event properties to signal cmd/ctrl on OS X + var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11)); + var captureRightClick = gecko || (ie && !ie_upto8); + + // Optimize some code when these features are not used. + var sawReadOnlySpans = false, sawCollapsedSpans = false; + + // EDITOR CONSTRUCTOR + + // A CodeMirror instance represents an editor. This is the object + // that user code is usually dealing with. + + function CodeMirror(place, options) { + if (!(this instanceof CodeMirror)) return new CodeMirror(place, options); + + this.options = options = options || {}; + // Determine effective options based on given values and defaults. + copyObj(defaults, options, false); + setGuttersForLineNumbers(options); + + var doc = options.value; + if (typeof doc == "string") doc = new Doc(doc, options.mode); + this.doc = doc; + + var display = this.display = new Display(place, doc); + display.wrapper.CodeMirror = this; + updateGutters(this); + themeChanged(this); + if (options.lineWrapping) + this.display.wrapper.className += " CodeMirror-wrap"; + if (options.autofocus && !mobile) focusInput(this); + + this.state = { + keyMaps: [], // stores maps added by addKeyMap + overlays: [], // highlighting overlays, as added by addOverlay + modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info + overwrite: false, focused: false, + suppressEdits: false, // used to disable editing during key handlers when in readOnly mode + pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in readInput + draggingText: false, + highlight: new Delayed() // stores highlight worker timeout + }; + + // Override magic textarea content restore that IE sometimes does + // on our hidden textarea on reload + if (ie_upto10) setTimeout(bind(resetInput, this, true), 20); + + registerEventHandlers(this); + + var cm = this; + runInOp(this, function() { + cm.curOp.forceUpdate = true; + attachDoc(cm, doc); + + if ((options.autofocus && !mobile) || activeElt() == display.input) + setTimeout(bind(onFocus, cm), 20); + else + onBlur(cm); + + for (var opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt)) + optionHandlers[opt](cm, options[opt], Init); + for (var i = 0; i < initHooks.length; ++i) initHooks[i](cm); + }); + } + + // DISPLAY CONSTRUCTOR + + // The display handles the DOM integration, both for input reading + // and content drawing. It holds references to DOM nodes and + // display-related state. + + function Display(place, doc) { + var d = this; + + // The semihidden textarea that is focused when the editor is + // focused, and receives input. + var input = d.input = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none"); + // The textarea is kept positioned near the cursor to prevent the + // fact that it'll be scrolled into view on input from scrolling + // our fake cursor out of view. On webkit, when wrap=off, paste is + // very slow. So make the area wide instead. + if (webkit) input.style.width = "1000px"; + else input.setAttribute("wrap", "off"); + // If border: 0; -- iOS fails to open keyboard (issue #1287) + if (ios) input.style.border = "1px solid black"; + input.setAttribute("autocorrect", "off"); input.setAttribute("autocapitalize", "off"); input.setAttribute("spellcheck", "false"); + + // Wraps and hides input textarea + d.inputDiv = elt("div", [input], null, "overflow: hidden; position: relative; width: 3px; height: 0px;"); + // The fake scrollbar elements. + d.scrollbarH = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar"); + d.scrollbarV = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar"); + // Covers bottom-right square when both scrollbars are present. + d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler"); + // Covers bottom of gutter when coverGutterNextToScrollbar is on + // and h scrollbar is present. + d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler"); + // Will contain the actual code, positioned to cover the viewport. + d.lineDiv = elt("div", null, "CodeMirror-code"); + // Elements are added to these to represent selection and cursors. + d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1"); + d.cursorDiv = elt("div", null, "CodeMirror-cursors"); + // A visibility: hidden element used to find the size of things. + d.measure = elt("div", null, "CodeMirror-measure"); + // When lines outside of the viewport are measured, they are drawn in this. + d.lineMeasure = elt("div", null, "CodeMirror-measure"); + // Wraps everything that needs to exist inside the vertically-padded coordinate system + d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv], + null, "position: relative; outline: none"); + // Moved around its parent to cover visible view. + d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative"); + // Set to the height of the document, allowing scrolling. + d.sizer = elt("div", [d.mover], "CodeMirror-sizer"); + // Behavior of elts with overflow: auto and padding is + // inconsistent across browsers. This is used to ensure the + // scrollable area is big enough. + d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerCutOff + "px; width: 1px;"); + // Will contain the gutters, if any. + d.gutters = elt("div", null, "CodeMirror-gutters"); + d.lineGutter = null; + // Actual scrollable element. + d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll"); + d.scroller.setAttribute("tabIndex", "-1"); + // The element in which the editor lives. + d.wrapper = elt("div", [d.inputDiv, d.scrollbarH, d.scrollbarV, + d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror"); + + // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported) + if (ie_upto7) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; } + // Needed to hide big blue blinking cursor on Mobile Safari + if (ios) input.style.width = "0px"; + if (!webkit) d.scroller.draggable = true; + // Needed to handle Tab key in KHTML + if (khtml) { d.inputDiv.style.height = "1px"; d.inputDiv.style.position = "absolute"; } + // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8). + if (ie_upto7) d.scrollbarH.style.minHeight = d.scrollbarV.style.minWidth = "18px"; + + if (place.appendChild) place.appendChild(d.wrapper); + else place(d.wrapper); + + // Current rendered range (may be bigger than the view window). + d.viewFrom = d.viewTo = doc.first; + // Information about the rendered lines. + d.view = []; + // Holds info about a single rendered line when it was rendered + // for measurement, while not in view. + d.externalMeasured = null; + // Empty space (in pixels) above the view + d.viewOffset = 0; + d.lastSizeC = 0; + d.updateLineNumbers = null; + + // Used to only resize the line number gutter when necessary (when + // the amount of lines crosses a boundary that makes its width change) + d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null; + // See readInput and resetInput + d.prevInput = ""; + // Set to true when a non-horizontal-scrolling line widget is + // added. As an optimization, line widget aligning is skipped when + // this is false. + d.alignWidgets = false; + // Flag that indicates whether we expect input to appear real soon + // now (after some event like 'keypress' or 'input') and are + // polling intensively. + d.pollingFast = false; + // Self-resetting timeout for the poller + d.poll = new Delayed(); + + d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; + + // Tracks when resetInput has punted to just putting a short + // string into the textarea instead of the full selection. + d.inaccurateSelection = false; + + // Tracks the maximum line length so that the horizontal scrollbar + // can be kept static when scrolling. + d.maxLine = null; + d.maxLineLength = 0; + d.maxLineChanged = false; + + // Used for measuring wheel scrolling granularity + d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null; + + // True when shift is held down. + d.shift = false; + } + + // STATE UPDATES + + // Used to get the editor into a consistent state again when options change. + + function loadMode(cm) { + cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption); + resetModeState(cm); + } + + function resetModeState(cm) { + cm.doc.iter(function(line) { + if (line.stateAfter) line.stateAfter = null; + if (line.styles) line.styles = null; + }); + cm.doc.frontier = cm.doc.first; + startWorker(cm, 100); + cm.state.modeGen++; + if (cm.curOp) regChange(cm); + } + + function wrappingChanged(cm) { + if (cm.options.lineWrapping) { + addClass(cm.display.wrapper, "CodeMirror-wrap"); + cm.display.sizer.style.minWidth = ""; + } else { + rmClass(cm.display.wrapper, "CodeMirror-wrap"); + findMaxLine(cm); + } + estimateLineHeights(cm); + regChange(cm); + clearCaches(cm); + setTimeout(function(){updateScrollbars(cm);}, 100); + } + + // Returns a function that estimates the height of a line, to use as + // first approximation until the line becomes visible (and is thus + // properly measurable). + function estimateHeight(cm) { + var th = textHeight(cm.display), wrapping = cm.options.lineWrapping; + var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3); + return function(line) { + if (lineIsHidden(cm.doc, line)) return 0; + + var widgetsHeight = 0; + if (line.widgets) for (var i = 0; i < line.widgets.length; i++) { + if (line.widgets[i].height) widgetsHeight += line.widgets[i].height; + } + + if (wrapping) + return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th; + else + return widgetsHeight + th; + }; + } + + function estimateLineHeights(cm) { + var doc = cm.doc, est = estimateHeight(cm); + doc.iter(function(line) { + var estHeight = est(line); + if (estHeight != line.height) updateLineHeight(line, estHeight); + }); + } + + function keyMapChanged(cm) { + var map = keyMap[cm.options.keyMap], style = map.style; + cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-keymap-\S+/g, "") + + (style ? " cm-keymap-" + style : ""); + } + + function themeChanged(cm) { + cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") + + cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-"); + clearCaches(cm); + } + + function guttersChanged(cm) { + updateGutters(cm); + regChange(cm); + setTimeout(function(){alignHorizontally(cm);}, 20); + } + + // Rebuild the gutter elements, ensure the margin to the left of the + // code matches their width. + function updateGutters(cm) { + var gutters = cm.display.gutters, specs = cm.options.gutters; + removeChildren(gutters); + for (var i = 0; i < specs.length; ++i) { + var gutterClass = specs[i]; + var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass)); + if (gutterClass == "CodeMirror-linenumbers") { + cm.display.lineGutter = gElt; + gElt.style.width = (cm.display.lineNumWidth || 1) + "px"; + } + } + gutters.style.display = i ? "" : "none"; + updateGutterSpace(cm); + } + + function updateGutterSpace(cm) { + var width = cm.display.gutters.offsetWidth; + cm.display.sizer.style.marginLeft = width + "px"; + cm.display.scrollbarH.style.left = cm.options.fixedGutter ? width + "px" : 0; + } + + // Compute the character length of a line, taking into account + // collapsed ranges (see markText) that might hide parts, and join + // other lines onto it. + function lineLength(line) { + if (line.height == 0) return 0; + var len = line.text.length, merged, cur = line; + while (merged = collapsedSpanAtStart(cur)) { + var found = merged.find(0, true); + cur = found.from.line; + len += found.from.ch - found.to.ch; + } + cur = line; + while (merged = collapsedSpanAtEnd(cur)) { + var found = merged.find(0, true); + len -= cur.text.length - found.from.ch; + cur = found.to.line; + len += cur.text.length - found.to.ch; + } + return len; + } + + // Find the longest line in the document. + function findMaxLine(cm) { + var d = cm.display, doc = cm.doc; + d.maxLine = getLine(doc, doc.first); + d.maxLineLength = lineLength(d.maxLine); + d.maxLineChanged = true; + doc.iter(function(line) { + var len = lineLength(line); + if (len > d.maxLineLength) { + d.maxLineLength = len; + d.maxLine = line; + } + }); + } + + // Make sure the gutters options contains the element + // "CodeMirror-linenumbers" when the lineNumbers option is true. + function setGuttersForLineNumbers(options) { + var found = indexOf(options.gutters, "CodeMirror-linenumbers"); + if (found == -1 && options.lineNumbers) { + options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]); + } else if (found > -1 && !options.lineNumbers) { + options.gutters = options.gutters.slice(0); + options.gutters.splice(found, 1); + } + } + + // SCROLLBARS + + // Prepare DOM reads needed to update the scrollbars. Done in one + // shot to minimize update/measure roundtrips. + function measureForScrollbars(cm) { + var scroll = cm.display.scroller; + return { + clientHeight: scroll.clientHeight, + barHeight: cm.display.scrollbarV.clientHeight, + scrollWidth: scroll.scrollWidth, clientWidth: scroll.clientWidth, + barWidth: cm.display.scrollbarH.clientWidth, + docHeight: Math.round(cm.doc.height + paddingVert(cm.display)) + }; + } + + // Re-synchronize the fake scrollbars with the actual size of the + // content. + function updateScrollbars(cm, measure) { + if (!measure) measure = measureForScrollbars(cm); + var d = cm.display; + var scrollHeight = measure.docHeight + scrollerCutOff; + var needsH = measure.scrollWidth > measure.clientWidth; + var needsV = scrollHeight > measure.clientHeight; + if (needsV) { + d.scrollbarV.style.display = "block"; + d.scrollbarV.style.bottom = needsH ? scrollbarWidth(d.measure) + "px" : "0"; + // A bug in IE8 can cause this value to be negative, so guard it. + d.scrollbarV.firstChild.style.height = + Math.max(0, scrollHeight - measure.clientHeight + (measure.barHeight || d.scrollbarV.clientHeight)) + "px"; + } else { + d.scrollbarV.style.display = ""; + d.scrollbarV.firstChild.style.height = "0"; + } + if (needsH) { + d.scrollbarH.style.display = "block"; + d.scrollbarH.style.right = needsV ? scrollbarWidth(d.measure) + "px" : "0"; + d.scrollbarH.firstChild.style.width = + (measure.scrollWidth - measure.clientWidth + (measure.barWidth || d.scrollbarH.clientWidth)) + "px"; + } else { + d.scrollbarH.style.display = ""; + d.scrollbarH.firstChild.style.width = "0"; + } + if (needsH && needsV) { + d.scrollbarFiller.style.display = "block"; + d.scrollbarFiller.style.height = d.scrollbarFiller.style.width = scrollbarWidth(d.measure) + "px"; + } else d.scrollbarFiller.style.display = ""; + if (needsH && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) { + d.gutterFiller.style.display = "block"; + d.gutterFiller.style.height = scrollbarWidth(d.measure) + "px"; + d.gutterFiller.style.width = d.gutters.offsetWidth + "px"; + } else d.gutterFiller.style.display = ""; + + if (!cm.state.checkedOverlayScrollbar && measure.clientHeight > 0) { + if (scrollbarWidth(d.measure) === 0) { + var w = mac && !mac_geMountainLion ? "12px" : "18px"; + d.scrollbarV.style.minWidth = d.scrollbarH.style.minHeight = w; + var barMouseDown = function(e) { + if (e_target(e) != d.scrollbarV && e_target(e) != d.scrollbarH) + operation(cm, onMouseDown)(e); + }; + on(d.scrollbarV, "mousedown", barMouseDown); + on(d.scrollbarH, "mousedown", barMouseDown); + } + cm.state.checkedOverlayScrollbar = true; + } + } + + // Compute the lines that are visible in a given viewport (defaults + // the the current scroll position). viewPort may contain top, + // height, and ensure (see op.scrollToPos) properties. + function visibleLines(display, doc, viewPort) { + var top = viewPort && viewPort.top != null ? viewPort.top : display.scroller.scrollTop; + top = Math.floor(top - paddingTop(display)); + var bottom = viewPort && viewPort.bottom != null ? viewPort.bottom : top + display.wrapper.clientHeight; + + var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom); + // Ensure is a {from: {line, ch}, to: {line, ch}} object, and + // forces those lines into the viewport (if possible). + if (viewPort && viewPort.ensure) { + var ensureFrom = viewPort.ensure.from.line, ensureTo = viewPort.ensure.to.line; + if (ensureFrom < from) + return {from: ensureFrom, + to: lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight)}; + if (Math.min(ensureTo, doc.lastLine()) >= to) + return {from: lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight), + to: ensureTo}; + } + return {from: from, to: to}; + } + + // LINE NUMBERS + + // Re-align line numbers and gutter marks to compensate for + // horizontal scrolling. + function alignHorizontally(cm) { + var display = cm.display, view = display.view; + if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return; + var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft; + var gutterW = display.gutters.offsetWidth, left = comp + "px"; + for (var i = 0; i < view.length; i++) if (!view[i].hidden) { + if (cm.options.fixedGutter && view[i].gutter) + view[i].gutter.style.left = left; + var align = view[i].alignable; + if (align) for (var j = 0; j < align.length; j++) + align[j].style.left = left; + } + if (cm.options.fixedGutter) + display.gutters.style.left = (comp + gutterW) + "px"; + } + + // Used to ensure that the line number gutter is still the right + // size for the current document size. Returns true when an update + // is needed. + function maybeUpdateLineNumberWidth(cm) { + if (!cm.options.lineNumbers) return false; + var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display; + if (last.length != display.lineNumChars) { + var test = display.measure.appendChild(elt("div", [elt("div", last)], + "CodeMirror-linenumber CodeMirror-gutter-elt")); + var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW; + display.lineGutter.style.width = ""; + display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding); + display.lineNumWidth = display.lineNumInnerWidth + padding; + display.lineNumChars = display.lineNumInnerWidth ? last.length : -1; + display.lineGutter.style.width = display.lineNumWidth + "px"; + updateGutterSpace(cm); + return true; + } + return false; + } + + function lineNumberFor(options, i) { + return String(options.lineNumberFormatter(i + options.firstLineNumber)); + } + + // Computes display.scroller.scrollLeft + display.gutters.offsetWidth, + // but using getBoundingClientRect to get a sub-pixel-accurate + // result. + function compensateForHScroll(display) { + return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left; + } + + // DISPLAY DRAWING + + // Updates the display, selection, and scrollbars, using the + // information in display.view to find out which nodes are no longer + // up-to-date. Tries to bail out early when no changes are needed, + // unless forced is true. + // Returns true if an actual update happened, false otherwise. + function updateDisplay(cm, viewPort, forced) { + var oldFrom = cm.display.viewFrom, oldTo = cm.display.viewTo, updated; + var visible = visibleLines(cm.display, cm.doc, viewPort); + for (var first = true;; first = false) { + var oldWidth = cm.display.scroller.clientWidth; + if (!updateDisplayInner(cm, visible, forced)) break; + updated = true; + + // If the max line changed since it was last measured, measure it, + // and ensure the document's width matches it. + if (cm.display.maxLineChanged && !cm.options.lineWrapping) + adjustContentWidth(cm); + + var barMeasure = measureForScrollbars(cm); + updateSelection(cm); + setDocumentHeight(cm, barMeasure); + updateScrollbars(cm, barMeasure); + if (webkit && cm.options.lineWrapping) + checkForWebkitWidthBug(cm, barMeasure); // (Issue #2420) + if (first && cm.options.lineWrapping && oldWidth != cm.display.scroller.clientWidth) { + forced = true; + continue; + } + forced = false; + + // Clip forced viewport to actual scrollable area. + if (viewPort && viewPort.top != null) + viewPort = {top: Math.min(barMeasure.docHeight - scrollerCutOff - barMeasure.clientHeight, viewPort.top)}; + // Updated line heights might result in the drawn area not + // actually covering the viewport. Keep looping until it does. + visible = visibleLines(cm.display, cm.doc, viewPort); + if (visible.from >= cm.display.viewFrom && visible.to <= cm.display.viewTo) + break; + } + + cm.display.updateLineNumbers = null; + if (updated) { + signalLater(cm, "update", cm); + if (cm.display.viewFrom != oldFrom || cm.display.viewTo != oldTo) + signalLater(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo); + } + return updated; + } + + // Does the actual updating of the line display. Bails out + // (returning false) when there is nothing to be done and forced is + // false. + function updateDisplayInner(cm, visible, forced) { + var display = cm.display, doc = cm.doc; + if (!display.wrapper.offsetWidth) { + resetView(cm); + return; + } + + // Bail out if the visible area is already rendered and nothing changed. + if (!forced && visible.from >= display.viewFrom && visible.to <= display.viewTo && + countDirtyView(cm) == 0) + return; + + if (maybeUpdateLineNumberWidth(cm)) + resetView(cm); + var dims = getDimensions(cm); + + // Compute a suitable new viewport (from & to) + var end = doc.first + doc.size; + var from = Math.max(visible.from - cm.options.viewportMargin, doc.first); + var to = Math.min(end, visible.to + cm.options.viewportMargin); + if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom); + if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo); + if (sawCollapsedSpans) { + from = visualLineNo(cm.doc, from); + to = visualLineEndNo(cm.doc, to); + } + + var different = from != display.viewFrom || to != display.viewTo || + display.lastSizeC != display.wrapper.clientHeight; + adjustView(cm, from, to); + + display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom)); + // Position the mover div to align with the current scroll position + cm.display.mover.style.top = display.viewOffset + "px"; + + var toUpdate = countDirtyView(cm); + if (!different && toUpdate == 0 && !forced) return; + + // For big changes, we hide the enclosing element during the + // update, since that speeds up the operations on most browsers. + var focused = activeElt(); + if (toUpdate > 4) display.lineDiv.style.display = "none"; + patchDisplay(cm, display.updateLineNumbers, dims); + if (toUpdate > 4) display.lineDiv.style.display = ""; + // There might have been a widget with a focused element that got + // hidden or updated, if so re-focus it. + if (focused && activeElt() != focused && focused.offsetHeight) focused.focus(); + + // Prevent selection and cursors from interfering with the scroll + // width. + removeChildren(display.cursorDiv); + removeChildren(display.selectionDiv); + + if (different) { + display.lastSizeC = display.wrapper.clientHeight; + startWorker(cm, 400); + } + + updateHeightsInViewport(cm); + + return true; + } + + function adjustContentWidth(cm) { + var display = cm.display; + var width = measureChar(cm, display.maxLine, display.maxLine.text.length).left; + display.maxLineChanged = false; + var minWidth = Math.max(0, width + 3); + var maxScrollLeft = Math.max(0, display.sizer.offsetLeft + minWidth + scrollerCutOff - display.scroller.clientWidth); + display.sizer.style.minWidth = minWidth + "px"; + if (maxScrollLeft < cm.doc.scrollLeft) + setScrollLeft(cm, Math.min(display.scroller.scrollLeft, maxScrollLeft), true); + } + + function setDocumentHeight(cm, measure) { + cm.display.sizer.style.minHeight = cm.display.heightForcer.style.top = measure.docHeight + "px"; + cm.display.gutters.style.height = Math.max(measure.docHeight, measure.clientHeight - scrollerCutOff) + "px"; + } + + + function checkForWebkitWidthBug(cm, measure) { + // Work around Webkit bug where it sometimes reserves space for a + // non-existing phantom scrollbar in the scroller (Issue #2420) + if (cm.display.sizer.offsetWidth + cm.display.gutters.offsetWidth < cm.display.scroller.clientWidth - 1) { + cm.display.sizer.style.minHeight = cm.display.heightForcer.style.top = "0px"; + cm.display.gutters.style.height = measure.docHeight + "px"; + } + } + + // Read the actual heights of the rendered lines, and update their + // stored heights to match. + function updateHeightsInViewport(cm) { + var display = cm.display; + var prevBottom = display.lineDiv.offsetTop; + for (var i = 0; i < display.view.length; i++) { + var cur = display.view[i], height; + if (cur.hidden) continue; + if (ie_upto7) { + var bot = cur.node.offsetTop + cur.node.offsetHeight; + height = bot - prevBottom; + prevBottom = bot; + } else { + var box = cur.node.getBoundingClientRect(); + height = box.bottom - box.top; + } + var diff = cur.line.height - height; + if (height < 2) height = textHeight(display); + if (diff > .001 || diff < -.001) { + updateLineHeight(cur.line, height); + updateWidgetHeight(cur.line); + if (cur.rest) for (var j = 0; j < cur.rest.length; j++) + updateWidgetHeight(cur.rest[j]); + } + } + } + + // Read and store the height of line widgets associated with the + // given line. + function updateWidgetHeight(line) { + if (line.widgets) for (var i = 0; i < line.widgets.length; ++i) + line.widgets[i].height = line.widgets[i].node.offsetHeight; + } + + // Do a bulk-read of the DOM positions and sizes needed to draw the + // view, so that we don't interleave reading and writing to the DOM. + function getDimensions(cm) { + var d = cm.display, left = {}, width = {}; + for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) { + left[cm.options.gutters[i]] = n.offsetLeft; + width[cm.options.gutters[i]] = n.offsetWidth; + } + return {fixedPos: compensateForHScroll(d), + gutterTotalWidth: d.gutters.offsetWidth, + gutterLeft: left, + gutterWidth: width, + wrapperWidth: d.wrapper.clientWidth}; + } + + // Sync the actual display DOM structure with display.view, removing + // nodes for lines that are no longer in view, and creating the ones + // that are not there yet, and updating the ones that are out of + // date. + function patchDisplay(cm, updateNumbersFrom, dims) { + var display = cm.display, lineNumbers = cm.options.lineNumbers; + var container = display.lineDiv, cur = container.firstChild; + + function rm(node) { + var next = node.nextSibling; + // Works around a throw-scroll bug in OS X Webkit + if (webkit && mac && cm.display.currentWheelTarget == node) + node.style.display = "none"; + else + node.parentNode.removeChild(node); + return next; + } + + var view = display.view, lineN = display.viewFrom; + // Loop over the elements in the view, syncing cur (the DOM nodes + // in display.lineDiv) with the view as we go. + for (var i = 0; i < view.length; i++) { + var lineView = view[i]; + if (lineView.hidden) { + } else if (!lineView.node) { // Not drawn yet + var node = buildLineElement(cm, lineView, lineN, dims); + container.insertBefore(node, cur); + } else { // Already drawn + while (cur != lineView.node) cur = rm(cur); + var updateNumber = lineNumbers && updateNumbersFrom != null && + updateNumbersFrom <= lineN && lineView.lineNumber; + if (lineView.changes) { + if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false; + updateLineForChanges(cm, lineView, lineN, dims); + } + if (updateNumber) { + removeChildren(lineView.lineNumber); + lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN))); + } + cur = lineView.node.nextSibling; + } + lineN += lineView.size; + } + while (cur) cur = rm(cur); + } + + // When an aspect of a line changes, a string is added to + // lineView.changes. This updates the relevant part of the line's + // DOM structure. + function updateLineForChanges(cm, lineView, lineN, dims) { + for (var j = 0; j < lineView.changes.length; j++) { + var type = lineView.changes[j]; + if (type == "text") updateLineText(cm, lineView); + else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims); + else if (type == "class") updateLineClasses(lineView); + else if (type == "widget") updateLineWidgets(lineView, dims); + } + lineView.changes = null; + } + + // Lines with gutter elements, widgets or a background class need to + // be wrapped, and have the extra elements added to the wrapper div + function ensureLineWrapped(lineView) { + if (lineView.node == lineView.text) { + lineView.node = elt("div", null, null, "position: relative"); + if (lineView.text.parentNode) + lineView.text.parentNode.replaceChild(lineView.node, lineView.text); + lineView.node.appendChild(lineView.text); + if (ie_upto7) lineView.node.style.zIndex = 2; + } + return lineView.node; + } + + function updateLineBackground(lineView) { + var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass; + if (cls) cls += " CodeMirror-linebackground"; + if (lineView.background) { + if (cls) lineView.background.className = cls; + else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; } + } else if (cls) { + var wrap = ensureLineWrapped(lineView); + lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild); + } + } + + // Wrapper around buildLineContent which will reuse the structure + // in display.externalMeasured when possible. + function getLineContent(cm, lineView) { + var ext = cm.display.externalMeasured; + if (ext && ext.line == lineView.line) { + cm.display.externalMeasured = null; + lineView.measure = ext.measure; + return ext.built; + } + return buildLineContent(cm, lineView); + } + + // Redraw the line's text. Interacts with the background and text + // classes because the mode may output tokens that influence these + // classes. + function updateLineText(cm, lineView) { + var cls = lineView.text.className; + var built = getLineContent(cm, lineView); + if (lineView.text == lineView.node) lineView.node = built.pre; + lineView.text.parentNode.replaceChild(built.pre, lineView.text); + lineView.text = built.pre; + if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) { + lineView.bgClass = built.bgClass; + lineView.textClass = built.textClass; + updateLineClasses(lineView); + } else if (cls) { + lineView.text.className = cls; + } + } + + function updateLineClasses(lineView) { + updateLineBackground(lineView); + if (lineView.line.wrapClass) + ensureLineWrapped(lineView).className = lineView.line.wrapClass; + else if (lineView.node != lineView.text) + lineView.node.className = ""; + var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass; + lineView.text.className = textClass || ""; + } + + function updateLineGutter(cm, lineView, lineN, dims) { + if (lineView.gutter) { + lineView.node.removeChild(lineView.gutter); + lineView.gutter = null; + } + var markers = lineView.line.gutterMarkers; + if (cm.options.lineNumbers || markers) { + var wrap = ensureLineWrapped(lineView); + var gutterWrap = lineView.gutter = + wrap.insertBefore(elt("div", null, "CodeMirror-gutter-wrapper", "position: absolute; left: " + + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"), + lineView.text); + if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"])) + lineView.lineNumber = gutterWrap.appendChild( + elt("div", lineNumberFor(cm.options, lineN), + "CodeMirror-linenumber CodeMirror-gutter-elt", + "left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: " + + cm.display.lineNumInnerWidth + "px")); + if (markers) for (var k = 0; k < cm.options.gutters.length; ++k) { + var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]; + if (found) + gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " + + dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px")); + } + } + } + + function updateLineWidgets(lineView, dims) { + if (lineView.alignable) lineView.alignable = null; + for (var node = lineView.node.firstChild, next; node; node = next) { + var next = node.nextSibling; + if (node.className == "CodeMirror-linewidget") + lineView.node.removeChild(node); + } + insertLineWidgets(lineView, dims); + } + + // Build a line's DOM representation from scratch + function buildLineElement(cm, lineView, lineN, dims) { + var built = getLineContent(cm, lineView); + lineView.text = lineView.node = built.pre; + if (built.bgClass) lineView.bgClass = built.bgClass; + if (built.textClass) lineView.textClass = built.textClass; + + updateLineClasses(lineView); + updateLineGutter(cm, lineView, lineN, dims); + insertLineWidgets(lineView, dims); + return lineView.node; + } + + // A lineView may contain multiple logical lines (when merged by + // collapsed spans). The widgets for all of them need to be drawn. + function insertLineWidgets(lineView, dims) { + insertLineWidgetsFor(lineView.line, lineView, dims, true); + if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++) + insertLineWidgetsFor(lineView.rest[i], lineView, dims, false); + } + + function insertLineWidgetsFor(line, lineView, dims, allowAbove) { + if (!line.widgets) return; + var wrap = ensureLineWrapped(lineView); + for (var i = 0, ws = line.widgets; i < ws.length; ++i) { + var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget"); + if (!widget.handleMouseEvents) node.ignoreEvents = true; + positionLineWidget(widget, node, lineView, dims); + if (allowAbove && widget.above) + wrap.insertBefore(node, lineView.gutter || lineView.text); + else + wrap.appendChild(node); + signalLater(widget, "redraw"); + } + } + + function positionLineWidget(widget, node, lineView, dims) { + if (widget.noHScroll) { + (lineView.alignable || (lineView.alignable = [])).push(node); + var width = dims.wrapperWidth; + node.style.left = dims.fixedPos + "px"; + if (!widget.coverGutter) { + width -= dims.gutterTotalWidth; + node.style.paddingLeft = dims.gutterTotalWidth + "px"; + } + node.style.width = width + "px"; + } + if (widget.coverGutter) { + node.style.zIndex = 5; + node.style.position = "relative"; + if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px"; + } + } + + // POSITION OBJECT + + // A Pos instance represents a position within the text. + var Pos = CodeMirror.Pos = function(line, ch) { + if (!(this instanceof Pos)) return new Pos(line, ch); + this.line = line; this.ch = ch; + }; + + // Compare two positions, return 0 if they are the same, a negative + // number when a is less, and a positive number otherwise. + var cmp = CodeMirror.cmpPos = function(a, b) { return a.line - b.line || a.ch - b.ch; }; + + function copyPos(x) {return Pos(x.line, x.ch);} + function maxPos(a, b) { return cmp(a, b) < 0 ? b : a; } + function minPos(a, b) { return cmp(a, b) < 0 ? a : b; } + + // SELECTION / CURSOR + + // Selection objects are immutable. A new one is created every time + // the selection changes. A selection is one or more non-overlapping + // (and non-touching) ranges, sorted, and an integer that indicates + // which one is the primary selection (the one that's scrolled into + // view, that getCursor returns, etc). + function Selection(ranges, primIndex) { + this.ranges = ranges; + this.primIndex = primIndex; + } + + Selection.prototype = { + primary: function() { return this.ranges[this.primIndex]; }, + equals: function(other) { + if (other == this) return true; + if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false; + for (var i = 0; i < this.ranges.length; i++) { + var here = this.ranges[i], there = other.ranges[i]; + if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false; + } + return true; + }, + deepCopy: function() { + for (var out = [], i = 0; i < this.ranges.length; i++) + out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); + return new Selection(out, this.primIndex); + }, + somethingSelected: function() { + for (var i = 0; i < this.ranges.length; i++) + if (!this.ranges[i].empty()) return true; + return false; + }, + contains: function(pos, end) { + if (!end) end = pos; + for (var i = 0; i < this.ranges.length; i++) { + var range = this.ranges[i]; + if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0) + return i; + } + return -1; + } + }; + + function Range(anchor, head) { + this.anchor = anchor; this.head = head; + } + + Range.prototype = { + from: function() { return minPos(this.anchor, this.head); }, + to: function() { return maxPos(this.anchor, this.head); }, + empty: function() { + return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch; + } + }; + + // Take an unsorted, potentially overlapping set of ranges, and + // build a selection out of it. 'Consumes' ranges array (modifying + // it). + function normalizeSelection(ranges, primIndex) { + var prim = ranges[primIndex]; + ranges.sort(function(a, b) { return cmp(a.from(), b.from()); }); + primIndex = indexOf(ranges, prim); + for (var i = 1; i < ranges.length; i++) { + var cur = ranges[i], prev = ranges[i - 1]; + if (cmp(prev.to(), cur.from()) >= 0) { + var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to()); + var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head; + if (i <= primIndex) --primIndex; + ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to)); + } + } + return new Selection(ranges, primIndex); + } + + function simpleSelection(anchor, head) { + return new Selection([new Range(anchor, head || anchor)], 0); + } + + // Most of the external API clips given positions to make sure they + // actually exist within the document. + function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));} + function clipPos(doc, pos) { + if (pos.line < doc.first) return Pos(doc.first, 0); + var last = doc.first + doc.size - 1; + if (pos.line > last) return Pos(last, getLine(doc, last).text.length); + return clipToLen(pos, getLine(doc, pos.line).text.length); + } + function clipToLen(pos, linelen) { + var ch = pos.ch; + if (ch == null || ch > linelen) return Pos(pos.line, linelen); + else if (ch < 0) return Pos(pos.line, 0); + else return pos; + } + function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;} + function clipPosArray(doc, array) { + for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]); + return out; + } + + // SELECTION UPDATES + + // The 'scroll' parameter given to many of these indicated whether + // the new cursor position should be scrolled into view after + // modifying the selection. + + // If shift is held or the extend flag is set, extends a range to + // include a given position (and optionally a second position). + // Otherwise, simply returns the range between the given positions. + // Used for cursor motion and such. + function extendRange(doc, range, head, other) { + if (doc.cm && doc.cm.display.shift || doc.extend) { + var anchor = range.anchor; + if (other) { + var posBefore = cmp(head, anchor) < 0; + if (posBefore != (cmp(other, anchor) < 0)) { + anchor = head; + head = other; + } else if (posBefore != (cmp(head, other) < 0)) { + head = other; + } + } + return new Range(anchor, head); + } else { + return new Range(other || head, head); + } + } + + // Extend the primary selection range, discard the rest. + function extendSelection(doc, head, other, options) { + setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options); + } + + // Extend all selections (pos is an array of selections with length + // equal the number of selections) + function extendSelections(doc, heads, options) { + for (var out = [], i = 0; i < doc.sel.ranges.length; i++) + out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null); + var newSel = normalizeSelection(out, doc.sel.primIndex); + setSelection(doc, newSel, options); + } + + // Updates a single range in the selection. + function replaceOneSelection(doc, i, range, options) { + var ranges = doc.sel.ranges.slice(0); + ranges[i] = range; + setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options); + } + + // Reset the selection to a single range. + function setSimpleSelection(doc, anchor, head, options) { + setSelection(doc, simpleSelection(anchor, head), options); + } + + // Give beforeSelectionChange handlers a change to influence a + // selection update. + function filterSelectionChange(doc, sel) { + var obj = { + ranges: sel.ranges, + update: function(ranges) { + this.ranges = []; + for (var i = 0; i < ranges.length; i++) + this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor), + clipPos(doc, ranges[i].head)); + } + }; + signal(doc, "beforeSelectionChange", doc, obj); + if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj); + if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1); + else return sel; + } + + function setSelectionReplaceHistory(doc, sel, options) { + var done = doc.history.done, last = lst(done); + if (last && last.ranges) { + done[done.length - 1] = sel; + setSelectionNoUndo(doc, sel, options); + } else { + setSelection(doc, sel, options); + } + } + + // Set a new selection. + function setSelection(doc, sel, options) { + setSelectionNoUndo(doc, sel, options); + addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options); + } + + function setSelectionNoUndo(doc, sel, options) { + if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) + sel = filterSelectionChange(doc, sel); + + var bias = cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1; + setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true)); + + if (!(options && options.scroll === false) && doc.cm) + ensureCursorVisible(doc.cm); + } + + function setSelectionInner(doc, sel) { + if (sel.equals(doc.sel)) return; + + doc.sel = sel; + + if (doc.cm) { + doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true; + signalCursorActivity(doc.cm); + } + signalLater(doc, "cursorActivity", doc); + } + + // Verify that the selection does not partially select any atomic + // marked ranges. + function reCheckSelection(doc) { + setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll); + } + + // Return a selection that does not partially select any atomic + // ranges. + function skipAtomicInSelection(doc, sel, bias, mayClear) { + var out; + for (var i = 0; i < sel.ranges.length; i++) { + var range = sel.ranges[i]; + var newAnchor = skipAtomic(doc, range.anchor, bias, mayClear); + var newHead = skipAtomic(doc, range.head, bias, mayClear); + if (out || newAnchor != range.anchor || newHead != range.head) { + if (!out) out = sel.ranges.slice(0, i); + out[i] = new Range(newAnchor, newHead); + } + } + return out ? normalizeSelection(out, sel.primIndex) : sel; + } + + // Ensure a given position is not inside an atomic range. + function skipAtomic(doc, pos, bias, mayClear) { + var flipped = false, curPos = pos; + var dir = bias || 1; + doc.cantEdit = false; + search: for (;;) { + var line = getLine(doc, curPos.line); + if (line.markedSpans) { + for (var i = 0; i < line.markedSpans.length; ++i) { + var sp = line.markedSpans[i], m = sp.marker; + if ((sp.from == null || (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) && + (sp.to == null || (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))) { + if (mayClear) { + signal(m, "beforeCursorEnter"); + if (m.explicitlyCleared) { + if (!line.markedSpans) break; + else {--i; continue;} + } + } + if (!m.atomic) continue; + var newPos = m.find(dir < 0 ? -1 : 1); + if (cmp(newPos, curPos) == 0) { + newPos.ch += dir; + if (newPos.ch < 0) { + if (newPos.line > doc.first) newPos = clipPos(doc, Pos(newPos.line - 1)); + else newPos = null; + } else if (newPos.ch > line.text.length) { + if (newPos.line < doc.first + doc.size - 1) newPos = Pos(newPos.line + 1, 0); + else newPos = null; + } + if (!newPos) { + if (flipped) { + // Driven in a corner -- no valid cursor position found at all + // -- try again *with* clearing, if we didn't already + if (!mayClear) return skipAtomic(doc, pos, bias, true); + // Otherwise, turn off editing until further notice, and return the start of the doc + doc.cantEdit = true; + return Pos(doc.first, 0); + } + flipped = true; newPos = pos; dir = -dir; + } + } + curPos = newPos; + continue search; + } + } + } + return curPos; + } + } + + // SELECTION DRAWING + + // Redraw the selection and/or cursor + function updateSelection(cm) { + var display = cm.display, doc = cm.doc; + var curFragment = document.createDocumentFragment(); + var selFragment = document.createDocumentFragment(); + + for (var i = 0; i < doc.sel.ranges.length; i++) { + var range = doc.sel.ranges[i]; + var collapsed = range.empty(); + if (collapsed || cm.options.showCursorWhenSelecting) + drawSelectionCursor(cm, range, curFragment); + if (!collapsed) + drawSelectionRange(cm, range, selFragment); + } + + // Move the hidden textarea near the cursor to prevent scrolling artifacts + if (cm.options.moveInputWithCursor) { + var headPos = cursorCoords(cm, doc.sel.primary().head, "div"); + var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect(); + var top = Math.max(0, Math.min(display.wrapper.clientHeight - 10, + headPos.top + lineOff.top - wrapOff.top)); + var left = Math.max(0, Math.min(display.wrapper.clientWidth - 10, + headPos.left + lineOff.left - wrapOff.left)); + display.inputDiv.style.top = top + "px"; + display.inputDiv.style.left = left + "px"; + } + + removeChildrenAndAdd(display.cursorDiv, curFragment); + removeChildrenAndAdd(display.selectionDiv, selFragment); + } + + // Draws a cursor for the given range + function drawSelectionCursor(cm, range, output) { + var pos = cursorCoords(cm, range.head, "div"); + + var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor")); + cursor.style.left = pos.left + "px"; + cursor.style.top = pos.top + "px"; + cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"; + + if (pos.other) { + // Secondary cursor, shown when on a 'jump' in bi-directional text + var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor")); + otherCursor.style.display = ""; + otherCursor.style.left = pos.other.left + "px"; + otherCursor.style.top = pos.other.top + "px"; + otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"; + } + } + + // Draws the given range as a highlighted selection + function drawSelectionRange(cm, range, output) { + var display = cm.display, doc = cm.doc; + var fragment = document.createDocumentFragment(); + var padding = paddingH(cm.display), leftSide = padding.left, rightSide = display.lineSpace.offsetWidth - padding.right; + + function add(left, top, width, bottom) { + if (top < 0) top = 0; + top = Math.round(top); + bottom = Math.round(bottom); + fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left + + "px; top: " + top + "px; width: " + (width == null ? rightSide - left : width) + + "px; height: " + (bottom - top) + "px")); + } + + function drawForLine(line, fromArg, toArg) { + var lineObj = getLine(doc, line); + var lineLen = lineObj.text.length; + var start, end; + function coords(ch, bias) { + return charCoords(cm, Pos(line, ch), "div", lineObj, bias); + } + + iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) { + var leftPos = coords(from, "left"), rightPos, left, right; + if (from == to) { + rightPos = leftPos; + left = right = leftPos.left; + } else { + rightPos = coords(to - 1, "right"); + if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; } + left = leftPos.left; + right = rightPos.right; + } + if (fromArg == null && from == 0) left = leftSide; + if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part + add(left, leftPos.top, null, leftPos.bottom); + left = leftSide; + if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top); + } + if (toArg == null && to == lineLen) right = rightSide; + if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left) + start = leftPos; + if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right) + end = rightPos; + if (left < leftSide + 1) left = leftSide; + add(left, rightPos.top, right - left, rightPos.bottom); + }); + return {start: start, end: end}; + } + + var sFrom = range.from(), sTo = range.to(); + if (sFrom.line == sTo.line) { + drawForLine(sFrom.line, sFrom.ch, sTo.ch); + } else { + var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line); + var singleVLine = visualLine(fromLine) == visualLine(toLine); + var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end; + var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start; + if (singleVLine) { + if (leftEnd.top < rightStart.top - 2) { + add(leftEnd.right, leftEnd.top, null, leftEnd.bottom); + add(leftSide, rightStart.top, rightStart.left, rightStart.bottom); + } else { + add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom); + } + } + if (leftEnd.bottom < rightStart.top) + add(leftSide, leftEnd.bottom, null, rightStart.top); + } + + output.appendChild(fragment); + } + + // Cursor-blinking + function restartBlink(cm) { + if (!cm.state.focused) return; + var display = cm.display; + clearInterval(display.blinker); + var on = true; + display.cursorDiv.style.visibility = ""; + if (cm.options.cursorBlinkRate > 0) + display.blinker = setInterval(function() { + display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; + }, cm.options.cursorBlinkRate); + } + + // HIGHLIGHT WORKER + + function startWorker(cm, time) { + if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo) + cm.state.highlight.set(time, bind(highlightWorker, cm)); + } + + function highlightWorker(cm) { + var doc = cm.doc; + if (doc.frontier < doc.first) doc.frontier = doc.first; + if (doc.frontier >= cm.display.viewTo) return; + var end = +new Date + cm.options.workTime; + var state = copyState(doc.mode, getStateBefore(cm, doc.frontier)); + + runInOp(cm, function() { + doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function(line) { + if (doc.frontier >= cm.display.viewFrom) { // Visible + var oldStyles = line.styles; + var highlighted = highlightLine(cm, line, state, true); + line.styles = highlighted.styles; + if (highlighted.classes) line.styleClasses = highlighted.classes; + else if (line.styleClasses) line.styleClasses = null; + var ischange = !oldStyles || oldStyles.length != line.styles.length; + for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i]; + if (ischange) regLineChange(cm, doc.frontier, "text"); + line.stateAfter = copyState(doc.mode, state); + } else { + processLine(cm, line.text, state); + line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null; + } + ++doc.frontier; + if (+new Date > end) { + startWorker(cm, cm.options.workDelay); + return true; + } + }); + }); + } + + // Finds the line to start with when starting a parse. Tries to + // find a line with a stateAfter, so that it can start with a + // valid state. If that fails, it returns the line with the + // smallest indentation, which tends to need the least context to + // parse correctly. + function findStartLine(cm, n, precise) { + var minindent, minline, doc = cm.doc; + var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100); + for (var search = n; search > lim; --search) { + if (search <= doc.first) return doc.first; + var line = getLine(doc, search - 1); + if (line.stateAfter && (!precise || search <= doc.frontier)) return search; + var indented = countColumn(line.text, null, cm.options.tabSize); + if (minline == null || minindent > indented) { + minline = search - 1; + minindent = indented; + } + } + return minline; + } + + function getStateBefore(cm, n, precise) { + var doc = cm.doc, display = cm.display; + if (!doc.mode.startState) return true; + var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter; + if (!state) state = startState(doc.mode); + else state = copyState(doc.mode, state); + doc.iter(pos, n, function(line) { + processLine(cm, line.text, state); + var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo; + line.stateAfter = save ? copyState(doc.mode, state) : null; + ++pos; + }); + if (precise) doc.frontier = pos; + return state; + } + + // POSITION MEASUREMENT + + function paddingTop(display) {return display.lineSpace.offsetTop;} + function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;} + function paddingH(display) { + if (display.cachedPaddingH) return display.cachedPaddingH; + var e = removeChildrenAndAdd(display.measure, elt("pre", "x")); + var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle; + var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)}; + if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data; + return data; + } + + // Ensure the lineView.wrapping.heights array is populated. This is + // an array of bottom offsets for the lines that make up a drawn + // line. When lineWrapping is on, there might be more than one + // height. + function ensureLineHeights(cm, lineView, rect) { + var wrapping = cm.options.lineWrapping; + var curWidth = wrapping && cm.display.scroller.clientWidth; + if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) { + var heights = lineView.measure.heights = []; + if (wrapping) { + lineView.measure.width = curWidth; + var rects = lineView.text.firstChild.getClientRects(); + for (var i = 0; i < rects.length - 1; i++) { + var cur = rects[i], next = rects[i + 1]; + if (Math.abs(cur.bottom - next.bottom) > 2) + heights.push((cur.bottom + next.top) / 2 - rect.top); + } + } + heights.push(rect.bottom - rect.top); + } + } + + // Find a line map (mapping character offsets to text nodes) and a + // measurement cache for the given line number. (A line view might + // contain multiple lines when collapsed ranges are present.) + function mapFromLineView(lineView, line, lineN) { + if (lineView.line == line) + return {map: lineView.measure.map, cache: lineView.measure.cache}; + for (var i = 0; i < lineView.rest.length; i++) + if (lineView.rest[i] == line) + return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]}; + for (var i = 0; i < lineView.rest.length; i++) + if (lineNo(lineView.rest[i]) > lineN) + return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true}; + } + + // Render a line into the hidden node display.externalMeasured. Used + // when measurement is needed for a line that's not in the viewport. + function updateExternalMeasurement(cm, line) { + line = visualLine(line); + var lineN = lineNo(line); + var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN); + view.lineN = lineN; + var built = view.built = buildLineContent(cm, view); + view.text = built.pre; + removeChildrenAndAdd(cm.display.lineMeasure, built.pre); + return view; + } + + // Get a {top, bottom, left, right} box (in line-local coordinates) + // for a given character. + function measureChar(cm, line, ch, bias) { + return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias); + } + + // Find a line view that corresponds to the given line number. + function findViewForLine(cm, lineN) { + if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo) + return cm.display.view[findViewIndex(cm, lineN)]; + var ext = cm.display.externalMeasured; + if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size) + return ext; + } + + // Measurement can be split in two steps, the set-up work that + // applies to the whole line, and the measurement of the actual + // character. Functions like coordsChar, that need to do a lot of + // measurements in a row, can thus ensure that the set-up work is + // only done once. + function prepareMeasureForLine(cm, line) { + var lineN = lineNo(line); + var view = findViewForLine(cm, lineN); + if (view && !view.text) + view = null; + else if (view && view.changes) + updateLineForChanges(cm, view, lineN, getDimensions(cm)); + if (!view) + view = updateExternalMeasurement(cm, line); + + var info = mapFromLineView(view, line, lineN); + return { + line: line, view: view, rect: null, + map: info.map, cache: info.cache, before: info.before, + hasHeights: false + }; + } + + // Given a prepared measurement object, measures the position of an + // actual character (or fetches it from the cache). + function measureCharPrepared(cm, prepared, ch, bias) { + if (prepared.before) ch = -1; + var key = ch + (bias || ""), found; + if (prepared.cache.hasOwnProperty(key)) { + found = prepared.cache[key]; + } else { + if (!prepared.rect) + prepared.rect = prepared.view.text.getBoundingClientRect(); + if (!prepared.hasHeights) { + ensureLineHeights(cm, prepared.view, prepared.rect); + prepared.hasHeights = true; + } + found = measureCharInner(cm, prepared, ch, bias); + if (!found.bogus) prepared.cache[key] = found; + } + return {left: found.left, right: found.right, top: found.top, bottom: found.bottom}; + } + + var nullRect = {left: 0, right: 0, top: 0, bottom: 0}; + + function measureCharInner(cm, prepared, ch, bias) { + var map = prepared.map; + + var node, start, end, collapse; + // First, search the line map for the text node corresponding to, + // or closest to, the target character. + for (var i = 0; i < map.length; i += 3) { + var mStart = map[i], mEnd = map[i + 1]; + if (ch < mStart) { + start = 0; end = 1; + collapse = "left"; + } else if (ch < mEnd) { + start = ch - mStart; + end = start + 1; + } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) { + end = mEnd - mStart; + start = end - 1; + if (ch >= mEnd) collapse = "right"; + } + if (start != null) { + node = map[i + 2]; + if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right")) + collapse = bias; + if (bias == "left" && start == 0) + while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) { + node = map[(i -= 3) + 2]; + collapse = "left"; + } + if (bias == "right" && start == mEnd - mStart) + while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) { + node = map[(i += 3) + 2]; + collapse = "right"; + } + break; + } + } + + var rect; + if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates. + while (start && isExtendingChar(prepared.line.text.charAt(mStart + start))) --start; + while (mStart + end < mEnd && isExtendingChar(prepared.line.text.charAt(mStart + end))) ++end; + if (ie_upto8 && start == 0 && end == mEnd - mStart) { + rect = node.parentNode.getBoundingClientRect(); + } else if (ie && cm.options.lineWrapping) { + var rects = range(node, start, end).getClientRects(); + if (rects.length) + rect = rects[bias == "right" ? rects.length - 1 : 0]; + else + rect = nullRect; + } else { + rect = range(node, start, end).getBoundingClientRect(); + } + } else { // If it is a widget, simply get the box for the whole widget. + if (start > 0) collapse = bias = "right"; + var rects; + if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1) + rect = rects[bias == "right" ? rects.length - 1 : 0]; + else + rect = node.getBoundingClientRect(); + } + if (ie_upto8 && !start && (!rect || !rect.left && !rect.right)) { + var rSpan = node.parentNode.getClientRects()[0]; + if (rSpan) + rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; + else + rect = nullRect; + } + + var top, bot = (rect.bottom + rect.top) / 2 - prepared.rect.top; + var heights = prepared.view.measure.heights; + for (var i = 0; i < heights.length - 1; i++) + if (bot < heights[i]) break; + top = i ? heights[i - 1] : 0; bot = heights[i]; + var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left, + right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left, + top: top, bottom: bot}; + if (!rect.left && !rect.right) result.bogus = true; + return result; + } + + function clearLineMeasurementCacheFor(lineView) { + if (lineView.measure) { + lineView.measure.cache = {}; + lineView.measure.heights = null; + if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++) + lineView.measure.caches[i] = {}; + } + } + + function clearLineMeasurementCache(cm) { + cm.display.externalMeasure = null; + removeChildren(cm.display.lineMeasure); + for (var i = 0; i < cm.display.view.length; i++) + clearLineMeasurementCacheFor(cm.display.view[i]); + } + + function clearCaches(cm) { + clearLineMeasurementCache(cm); + cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null; + if (!cm.options.lineWrapping) cm.display.maxLineChanged = true; + cm.display.lineNumChars = null; + } + + function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; } + function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; } + + // Converts a {top, bottom, left, right} box from line-local + // coordinates into another coordinate system. Context may be one of + // "line", "div" (display.lineDiv), "local"/null (editor), or "page". + function intoCoordSystem(cm, lineObj, rect, context) { + if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) { + var size = widgetHeight(lineObj.widgets[i]); + rect.top += size; rect.bottom += size; + } + if (context == "line") return rect; + if (!context) context = "local"; + var yOff = heightAtLine(lineObj); + if (context == "local") yOff += paddingTop(cm.display); + else yOff -= cm.display.viewOffset; + if (context == "page" || context == "window") { + var lOff = cm.display.lineSpace.getBoundingClientRect(); + yOff += lOff.top + (context == "window" ? 0 : pageScrollY()); + var xOff = lOff.left + (context == "window" ? 0 : pageScrollX()); + rect.left += xOff; rect.right += xOff; + } + rect.top += yOff; rect.bottom += yOff; + return rect; + } + + // Coverts a box from "div" coords to another coordinate system. + // Context may be "window", "page", "div", or "local"/null. + function fromCoordSystem(cm, coords, context) { + if (context == "div") return coords; + var left = coords.left, top = coords.top; + // First move into "page" coordinate system + if (context == "page") { + left -= pageScrollX(); + top -= pageScrollY(); + } else if (context == "local" || !context) { + var localBox = cm.display.sizer.getBoundingClientRect(); + left += localBox.left; + top += localBox.top; + } + + var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect(); + return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}; + } + + function charCoords(cm, pos, context, lineObj, bias) { + if (!lineObj) lineObj = getLine(cm.doc, pos.line); + return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context); + } + + // Returns a box for a given cursor position, which may have an + // 'other' property containing the position of the secondary cursor + // on a bidi boundary. + function cursorCoords(cm, pos, context, lineObj, preparedMeasure) { + lineObj = lineObj || getLine(cm.doc, pos.line); + if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj); + function get(ch, right) { + var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left"); + if (right) m.left = m.right; else m.right = m.left; + return intoCoordSystem(cm, lineObj, m, context); + } + function getBidi(ch, partPos) { + var part = order[partPos], right = part.level % 2; + if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) { + part = order[--partPos]; + ch = bidiRight(part) - (part.level % 2 ? 0 : 1); + right = true; + } else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) { + part = order[++partPos]; + ch = bidiLeft(part) - part.level % 2; + right = false; + } + if (right && ch == part.to && ch > part.from) return get(ch - 1); + return get(ch, right); + } + var order = getOrder(lineObj), ch = pos.ch; + if (!order) return get(ch); + var partPos = getBidiPartAt(order, ch); + var val = getBidi(ch, partPos); + if (bidiOther != null) val.other = getBidi(ch, bidiOther); + return val; + } + + // Used to cheaply estimate the coordinates for a position. Used for + // intermediate scroll updates. + function estimateCoords(cm, pos) { + var left = 0, pos = clipPos(cm.doc, pos); + if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch; + var lineObj = getLine(cm.doc, pos.line); + var top = heightAtLine(lineObj) + paddingTop(cm.display); + return {left: left, right: left, top: top, bottom: top + lineObj.height}; + } + + // Positions returned by coordsChar contain some extra information. + // xRel is the relative x position of the input coordinates compared + // to the found position (so xRel > 0 means the coordinates are to + // the right of the character position, for example). When outside + // is true, that means the coordinates lie outside the line's + // vertical range. + function PosWithInfo(line, ch, outside, xRel) { + var pos = Pos(line, ch); + pos.xRel = xRel; + if (outside) pos.outside = true; + return pos; + } + + // Compute the character position closest to the given coordinates. + // Input must be lineSpace-local ("div" coordinate system). + function coordsChar(cm, x, y) { + var doc = cm.doc; + y += cm.display.viewOffset; + if (y < 0) return PosWithInfo(doc.first, 0, true, -1); + var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1; + if (lineN > last) + return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1); + if (x < 0) x = 0; + + var lineObj = getLine(doc, lineN); + for (;;) { + var found = coordsCharInner(cm, lineObj, lineN, x, y); + var merged = collapsedSpanAtEnd(lineObj); + var mergedPos = merged && merged.find(0, true); + if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0)) + lineN = lineNo(lineObj = mergedPos.to.line); + else + return found; + } + } + + function coordsCharInner(cm, lineObj, lineNo, x, y) { + var innerOff = y - heightAtLine(lineObj); + var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth; + var preparedMeasure = prepareMeasureForLine(cm, lineObj); + + function getX(ch) { + var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure); + wrongLine = true; + if (innerOff > sp.bottom) return sp.left - adjust; + else if (innerOff < sp.top) return sp.left + adjust; + else wrongLine = false; + return sp.left; + } + + var bidi = getOrder(lineObj), dist = lineObj.text.length; + var from = lineLeft(lineObj), to = lineRight(lineObj); + var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine; + + if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1); + // Do a binary search between these bounds. + for (;;) { + if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) { + var ch = x < fromX || x - fromX <= toX - x ? from : to; + var xDiff = x - (ch == from ? fromX : toX); + while (isExtendingChar(lineObj.text.charAt(ch))) ++ch; + var pos = PosWithInfo(lineNo, ch, ch == from ? fromOutside : toOutside, + xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0); + return pos; + } + var step = Math.ceil(dist / 2), middle = from + step; + if (bidi) { + middle = from; + for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1); + } + var middleX = getX(middle); + if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;} + else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;} + } + } + + var measureText; + // Compute the default text height. + function textHeight(display) { + if (display.cachedTextHeight != null) return display.cachedTextHeight; + if (measureText == null) { + measureText = elt("pre"); + // Measure a bunch of lines, for browsers that compute + // fractional heights. + for (var i = 0; i < 49; ++i) { + measureText.appendChild(document.createTextNode("x")); + measureText.appendChild(elt("br")); + } + measureText.appendChild(document.createTextNode("x")); + } + removeChildrenAndAdd(display.measure, measureText); + var height = measureText.offsetHeight / 50; + if (height > 3) display.cachedTextHeight = height; + removeChildren(display.measure); + return height || 1; + } + + // Compute the default character width. + function charWidth(display) { + if (display.cachedCharWidth != null) return display.cachedCharWidth; + var anchor = elt("span", "xxxxxxxxxx"); + var pre = elt("pre", [anchor]); + removeChildrenAndAdd(display.measure, pre); + var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10; + if (width > 2) display.cachedCharWidth = width; + return width || 10; + } + + // OPERATIONS + + // Operations are used to wrap a series of changes to the editor + // state in such a way that each change won't have to update the + // cursor and display (which would be awkward, slow, and + // error-prone). Instead, display updates are batched and then all + // combined and executed at once. + + var nextOpId = 0; + // Start a new operation. + function startOperation(cm) { + cm.curOp = { + viewChanged: false, // Flag that indicates that lines might need to be redrawn + startHeight: cm.doc.height, // Used to detect need to update scrollbar + forceUpdate: false, // Used to force a redraw + updateInput: null, // Whether to reset the input textarea + typing: false, // Whether this reset should be careful to leave existing text (for compositing) + changeObjs: null, // Accumulated changes, for firing change events + cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on + selectionChanged: false, // Whether the selection needs to be redrawn + updateMaxLine: false, // Set when the widest line needs to be determined anew + scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet + scrollToPos: null, // Used to scroll to a specific position + id: ++nextOpId // Unique ID + }; + if (!delayedCallbackDepth++) delayedCallbacks = []; + } + + // Finish an operation, updating the display and signalling delayed events + function endOperation(cm) { + var op = cm.curOp, doc = cm.doc, display = cm.display; + cm.curOp = null; + + if (op.updateMaxLine) findMaxLine(cm); + + // If it looks like an update might be needed, call updateDisplay + if (op.viewChanged || op.forceUpdate || op.scrollTop != null || + op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom || + op.scrollToPos.to.line >= display.viewTo) || + display.maxLineChanged && cm.options.lineWrapping) { + var updated = updateDisplay(cm, {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate); + if (cm.display.scroller.offsetHeight) cm.doc.scrollTop = cm.display.scroller.scrollTop; + } + // If no update was run, but the selection changed, redraw that. + if (!updated && op.selectionChanged) updateSelection(cm); + if (!updated && op.startHeight != cm.doc.height) updateScrollbars(cm); + + // Propagate the scroll position to the actual DOM scroller + if (op.scrollTop != null && display.scroller.scrollTop != op.scrollTop) { + var top = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop)); + display.scroller.scrollTop = display.scrollbarV.scrollTop = doc.scrollTop = top; + } + if (op.scrollLeft != null && display.scroller.scrollLeft != op.scrollLeft) { + var left = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, op.scrollLeft)); + display.scroller.scrollLeft = display.scrollbarH.scrollLeft = doc.scrollLeft = left; + alignHorizontally(cm); + } + // If we need to scroll a specific position into view, do so. + if (op.scrollToPos) { + var coords = scrollPosIntoView(cm, clipPos(cm.doc, op.scrollToPos.from), + clipPos(cm.doc, op.scrollToPos.to), op.scrollToPos.margin); + if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords); + } + + if (op.selectionChanged) restartBlink(cm); + + if (cm.state.focused && op.updateInput) + resetInput(cm, op.typing); + + // Fire events for markers that are hidden/unidden by editing or + // undoing + var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers; + if (hidden) for (var i = 0; i < hidden.length; ++i) + if (!hidden[i].lines.length) signal(hidden[i], "hide"); + if (unhidden) for (var i = 0; i < unhidden.length; ++i) + if (unhidden[i].lines.length) signal(unhidden[i], "unhide"); + + var delayed; + if (!--delayedCallbackDepth) { + delayed = delayedCallbacks; + delayedCallbacks = null; + } + // Fire change events, and delayed event handlers + if (op.changeObjs) + signal(cm, "changes", cm, op.changeObjs); + if (delayed) for (var i = 0; i < delayed.length; ++i) delayed[i](); + if (op.cursorActivityHandlers) + for (var i = 0; i < op.cursorActivityHandlers.length; i++) + op.cursorActivityHandlers[i](cm); + } + + // Run the given function in an operation + function runInOp(cm, f) { + if (cm.curOp) return f(); + startOperation(cm); + try { return f(); } + finally { endOperation(cm); } + } + // Wraps a function in an operation. Returns the wrapped function. + function operation(cm, f) { + return function() { + if (cm.curOp) return f.apply(cm, arguments); + startOperation(cm); + try { return f.apply(cm, arguments); } + finally { endOperation(cm); } + }; + } + // Used to add methods to editor and doc instances, wrapping them in + // operations. + function methodOp(f) { + return function() { + if (this.curOp) return f.apply(this, arguments); + startOperation(this); + try { return f.apply(this, arguments); } + finally { endOperation(this); } + }; + } + function docMethodOp(f) { + return function() { + var cm = this.cm; + if (!cm || cm.curOp) return f.apply(this, arguments); + startOperation(cm); + try { return f.apply(this, arguments); } + finally { endOperation(cm); } + }; + } + + // VIEW TRACKING + + // These objects are used to represent the visible (currently drawn) + // part of the document. A LineView may correspond to multiple + // logical lines, if those are connected by collapsed ranges. + function LineView(doc, line, lineN) { + // The starting line + this.line = line; + // Continuing lines, if any + this.rest = visualLineContinued(line); + // Number of logical lines in this visual line + this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1; + this.node = this.text = null; + this.hidden = lineIsHidden(doc, line); + } + + // Create a range of LineView objects for the given lines. + function buildViewArray(cm, from, to) { + var array = [], nextPos; + for (var pos = from; pos < to; pos = nextPos) { + var view = new LineView(cm.doc, getLine(cm.doc, pos), pos); + nextPos = pos + view.size; + array.push(view); + } + return array; + } + + // Updates the display.view data structure for a given change to the + // document. From and to are in pre-change coordinates. Lendiff is + // the amount of lines added or subtracted by the change. This is + // used for changes that span multiple lines, or change the way + // lines are divided into visual lines. regLineChange (below) + // registers single-line changes. + function regChange(cm, from, to, lendiff) { + if (from == null) from = cm.doc.first; + if (to == null) to = cm.doc.first + cm.doc.size; + if (!lendiff) lendiff = 0; + + var display = cm.display; + if (lendiff && to < display.viewTo && + (display.updateLineNumbers == null || display.updateLineNumbers > from)) + display.updateLineNumbers = from; + + cm.curOp.viewChanged = true; + + if (from >= display.viewTo) { // Change after + if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo) + resetView(cm); + } else if (to <= display.viewFrom) { // Change before + if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) { + resetView(cm); + } else { + display.viewFrom += lendiff; + display.viewTo += lendiff; + } + } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap + resetView(cm); + } else if (from <= display.viewFrom) { // Top overlap + var cut = viewCuttingPoint(cm, to, to + lendiff, 1); + if (cut) { + display.view = display.view.slice(cut.index); + display.viewFrom = cut.lineN; + display.viewTo += lendiff; + } else { + resetView(cm); + } + } else if (to >= display.viewTo) { // Bottom overlap + var cut = viewCuttingPoint(cm, from, from, -1); + if (cut) { + display.view = display.view.slice(0, cut.index); + display.viewTo = cut.lineN; + } else { + resetView(cm); + } + } else { // Gap in the middle + var cutTop = viewCuttingPoint(cm, from, from, -1); + var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1); + if (cutTop && cutBot) { + display.view = display.view.slice(0, cutTop.index) + .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN)) + .concat(display.view.slice(cutBot.index)); + display.viewTo += lendiff; + } else { + resetView(cm); + } + } + + var ext = display.externalMeasured; + if (ext) { + if (to < ext.lineN) + ext.lineN += lendiff; + else if (from < ext.lineN + ext.size) + display.externalMeasured = null; + } + } + + // Register a change to a single line. Type must be one of "text", + // "gutter", "class", "widget" + function regLineChange(cm, line, type) { + cm.curOp.viewChanged = true; + var display = cm.display, ext = cm.display.externalMeasured; + if (ext && line >= ext.lineN && line < ext.lineN + ext.size) + display.externalMeasured = null; + + if (line < display.viewFrom || line >= display.viewTo) return; + var lineView = display.view[findViewIndex(cm, line)]; + if (lineView.node == null) return; + var arr = lineView.changes || (lineView.changes = []); + if (indexOf(arr, type) == -1) arr.push(type); + } + + // Clear the view. + function resetView(cm) { + cm.display.viewFrom = cm.display.viewTo = cm.doc.first; + cm.display.view = []; + cm.display.viewOffset = 0; + } + + // Find the view element corresponding to a given line. Return null + // when the line isn't visible. + function findViewIndex(cm, n) { + if (n >= cm.display.viewTo) return null; + n -= cm.display.viewFrom; + if (n < 0) return null; + var view = cm.display.view; + for (var i = 0; i < view.length; i++) { + n -= view[i].size; + if (n < 0) return i; + } + } + + function viewCuttingPoint(cm, oldN, newN, dir) { + var index = findViewIndex(cm, oldN), diff, view = cm.display.view; + if (!sawCollapsedSpans) return {index: index, lineN: newN}; + for (var i = 0, n = cm.display.viewFrom; i < index; i++) + n += view[i].size; + if (n != oldN) { + if (dir > 0) { + if (index == view.length - 1) return null; + diff = (n + view[index].size) - oldN; + index++; + } else { + diff = n - oldN; + } + oldN += diff; newN += diff; + } + while (visualLineNo(cm.doc, newN) != newN) { + if (index == (dir < 0 ? 0 : view.length - 1)) return null; + newN += dir * view[index - (dir < 0 ? 1 : 0)].size; + index += dir; + } + return {index: index, lineN: newN}; + } + + // Force the view to cover a given range, adding empty view element + // or clipping off existing ones as needed. + function adjustView(cm, from, to) { + var display = cm.display, view = display.view; + if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) { + display.view = buildViewArray(cm, from, to); + display.viewFrom = from; + } else { + if (display.viewFrom > from) + display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); + else if (display.viewFrom < from) + display.view = display.view.slice(findViewIndex(cm, from)); + display.viewFrom = from; + if (display.viewTo < to) + display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); + else if (display.viewTo > to) + display.view = display.view.slice(0, findViewIndex(cm, to)); + } + display.viewTo = to; + } + + // Count the number of lines in the view whose DOM representation is + // out of date (or nonexistent). + function countDirtyView(cm) { + var view = cm.display.view, dirty = 0; + for (var i = 0; i < view.length; i++) { + var lineView = view[i]; + if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty; + } + return dirty; + } + + // INPUT HANDLING + + // Poll for input changes, using the normal rate of polling. This + // runs as long as the editor is focused. + function slowPoll(cm) { + if (cm.display.pollingFast) return; + cm.display.poll.set(cm.options.pollInterval, function() { + readInput(cm); + if (cm.state.focused) slowPoll(cm); + }); + } + + // When an event has just come in that is likely to add or change + // something in the input textarea, we poll faster, to ensure that + // the change appears on the screen quickly. + function fastPoll(cm) { + var missed = false; + cm.display.pollingFast = true; + function p() { + var changed = readInput(cm); + if (!changed && !missed) {missed = true; cm.display.poll.set(60, p);} + else {cm.display.pollingFast = false; slowPoll(cm);} + } + cm.display.poll.set(20, p); + } + + // Read input from the textarea, and update the document to match. + // When something is selected, it is present in the textarea, and + // selected (unless it is huge, in which case a placeholder is + // used). When nothing is selected, the cursor sits after previously + // seen text (can be empty), which is stored in prevInput (we must + // not reset the textarea when typing, because that breaks IME). + function readInput(cm) { + var input = cm.display.input, prevInput = cm.display.prevInput, doc = cm.doc; + // Since this is called a *lot*, try to bail out as cheaply as + // possible when it is clear that nothing happened. hasSelection + // will be the case when there is a lot of text in the textarea, + // in which case reading its value would be expensive. + if (!cm.state.focused || (hasSelection(input) && !prevInput) || isReadOnly(cm) || cm.options.disableInput) + return false; + // See paste handler for more on the fakedLastChar kludge + if (cm.state.pasteIncoming && cm.state.fakedLastChar) { + input.value = input.value.substring(0, input.value.length - 1); + cm.state.fakedLastChar = false; + } + var text = input.value; + // If nothing changed, bail. + if (text == prevInput && !cm.somethingSelected()) return false; + // Work around nonsensical selection resetting in IE9/10 + if (ie && !ie_upto8 && cm.display.inputHasSelection === text) { + resetInput(cm); + return false; + } + + var withOp = !cm.curOp; + if (withOp) startOperation(cm); + cm.display.shift = false; + + // Find the part of the input that is actually new + var same = 0, l = Math.min(prevInput.length, text.length); + while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same; + var inserted = text.slice(same), textLines = splitLines(inserted); + + // When pasing N lines into N selections, insert one line per selection + var multiPaste = cm.state.pasteIncoming && textLines.length > 1 && doc.sel.ranges.length == textLines.length; + + // Normal behavior is to insert the new text into every selection + for (var i = doc.sel.ranges.length - 1; i >= 0; i--) { + var range = doc.sel.ranges[i]; + var from = range.from(), to = range.to(); + // Handle deletion + if (same < prevInput.length) + from = Pos(from.line, from.ch - (prevInput.length - same)); + // Handle overwrite + else if (cm.state.overwrite && range.empty() && !cm.state.pasteIncoming) + to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); + var updateInput = cm.curOp.updateInput; + var changeEvent = {from: from, to: to, text: multiPaste ? [textLines[i]] : textLines, + origin: cm.state.pasteIncoming ? "paste" : cm.state.cutIncoming ? "cut" : "+input"}; + makeChange(cm.doc, changeEvent); + signalLater(cm, "inputRead", cm, changeEvent); + // When an 'electric' character is inserted, immediately trigger a reindent + if (inserted && !cm.state.pasteIncoming && cm.options.electricChars && + cm.options.smartIndent && range.head.ch < 100 && + (!i || doc.sel.ranges[i - 1].head.line != range.head.line)) { + var mode = cm.getModeAt(range.head); + if (mode.electricChars) { + for (var j = 0; j < mode.electricChars.length; j++) + if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) { + indentLine(cm, range.head.line, "smart"); + break; + } + } else if (mode.electricInput) { + var end = changeEnd(changeEvent); + if (mode.electricInput.test(getLine(doc, end.line).text.slice(0, end.ch))) + indentLine(cm, range.head.line, "smart"); + } + } + } + ensureCursorVisible(cm); + cm.curOp.updateInput = updateInput; + cm.curOp.typing = true; + + // Don't leave long text in the textarea, since it makes further polling slow + if (text.length > 1000 || text.indexOf("\n") > -1) input.value = cm.display.prevInput = ""; + else cm.display.prevInput = text; + if (withOp) endOperation(cm); + cm.state.pasteIncoming = cm.state.cutIncoming = false; + return true; + } + + // Reset the input to correspond to the selection (or to be empty, + // when not typing and nothing is selected) + function resetInput(cm, typing) { + var minimal, selected, doc = cm.doc; + if (cm.somethingSelected()) { + cm.display.prevInput = ""; + var range = doc.sel.primary(); + minimal = hasCopyEvent && + (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000); + var content = minimal ? "-" : selected || cm.getSelection(); + cm.display.input.value = content; + if (cm.state.focused) selectInput(cm.display.input); + if (ie && !ie_upto8) cm.display.inputHasSelection = content; + } else if (!typing) { + cm.display.prevInput = cm.display.input.value = ""; + if (ie && !ie_upto8) cm.display.inputHasSelection = null; + } + cm.display.inaccurateSelection = minimal; + } + + function focusInput(cm) { + if (cm.options.readOnly != "nocursor" && (!mobile || activeElt() != cm.display.input)) + cm.display.input.focus(); + } + + function ensureFocus(cm) { + if (!cm.state.focused) { focusInput(cm); onFocus(cm); } + } + + function isReadOnly(cm) { + return cm.options.readOnly || cm.doc.cantEdit; + } + + // EVENT HANDLERS + + // Attach the necessary event handlers when initializing the editor + function registerEventHandlers(cm) { + var d = cm.display; + on(d.scroller, "mousedown", operation(cm, onMouseDown)); + // Older IE's will not fire a second mousedown for a double click + if (ie_upto10) + on(d.scroller, "dblclick", operation(cm, function(e) { + if (signalDOMEvent(cm, e)) return; + var pos = posFromMouse(cm, e); + if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return; + e_preventDefault(e); + var word = findWordAt(cm.doc, pos); + extendSelection(cm.doc, word.anchor, word.head); + })); + else + on(d.scroller, "dblclick", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); }); + // Prevent normal selection in the editor (we handle our own) + on(d.lineSpace, "selectstart", function(e) { + if (!eventInWidget(d, e)) e_preventDefault(e); + }); + // Some browsers fire contextmenu *after* opening the menu, at + // which point we can't mess with it anymore. Context menu is + // handled in onMouseDown for these browsers. + if (!captureRightClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);}); + + // Sync scrolling between fake scrollbars and real scrollable + // area, ensure viewport is updated when scrolling. + on(d.scroller, "scroll", function() { + if (d.scroller.clientHeight) { + setScrollTop(cm, d.scroller.scrollTop); + setScrollLeft(cm, d.scroller.scrollLeft, true); + signal(cm, "scroll", cm); + } + }); + on(d.scrollbarV, "scroll", function() { + if (d.scroller.clientHeight) setScrollTop(cm, d.scrollbarV.scrollTop); + }); + on(d.scrollbarH, "scroll", function() { + if (d.scroller.clientHeight) setScrollLeft(cm, d.scrollbarH.scrollLeft); + }); + + // Listen to wheel events in order to try and update the viewport on time. + on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);}); + on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);}); + + // Prevent clicks in the scrollbars from killing focus + function reFocus() { if (cm.state.focused) setTimeout(bind(focusInput, cm), 0); } + on(d.scrollbarH, "mousedown", reFocus); + on(d.scrollbarV, "mousedown", reFocus); + // Prevent wrapper from ever scrolling + on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; }); + + // When the window resizes, we need to refresh active editors. + var resizeTimer; + function onResize() { + if (resizeTimer == null) resizeTimer = setTimeout(function() { + resizeTimer = null; + // Might be a text scaling operation, clear size caches. + d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = knownScrollbarWidth = null; + cm.setSize(); + }, 100); + } + on(window, "resize", onResize); + // The above handler holds on to the editor and its data + // structures. Here we poll to unregister it when the editor is no + // longer in the document, so that it can be garbage-collected. + function unregister() { + if (contains(document.body, d.wrapper)) setTimeout(unregister, 5000); + else off(window, "resize", onResize); + } + setTimeout(unregister, 5000); + + on(d.input, "keyup", operation(cm, onKeyUp)); + on(d.input, "input", function() { + if (ie && !ie_upto8 && cm.display.inputHasSelection) cm.display.inputHasSelection = null; + fastPoll(cm); + }); + on(d.input, "keydown", operation(cm, onKeyDown)); + on(d.input, "keypress", operation(cm, onKeyPress)); + on(d.input, "focus", bind(onFocus, cm)); + on(d.input, "blur", bind(onBlur, cm)); + + function drag_(e) { + if (!signalDOMEvent(cm, e)) e_stop(e); + } + if (cm.options.dragDrop) { + on(d.scroller, "dragstart", function(e){onDragStart(cm, e);}); + on(d.scroller, "dragenter", drag_); + on(d.scroller, "dragover", drag_); + on(d.scroller, "drop", operation(cm, onDrop)); + } + on(d.scroller, "paste", function(e) { + if (eventInWidget(d, e)) return; + cm.state.pasteIncoming = true; + focusInput(cm); + fastPoll(cm); + }); + on(d.input, "paste", function() { + // Workaround for webkit bug https://bugs.webkit.org/show_bug.cgi?id=90206 + // Add a char to the end of textarea before paste occur so that + // selection doesn't span to the end of textarea. + if (webkit && !cm.state.fakedLastChar && !(new Date - cm.state.lastMiddleDown < 200)) { + var start = d.input.selectionStart, end = d.input.selectionEnd; + d.input.value += "$"; + d.input.selectionStart = start; + d.input.selectionEnd = end; + cm.state.fakedLastChar = true; + } + cm.state.pasteIncoming = true; + fastPoll(cm); + }); + + function prepareCopyCut(e) { + if (cm.somethingSelected()) { + if (d.inaccurateSelection) { + d.prevInput = ""; + d.inaccurateSelection = false; + d.input.value = cm.getSelection(); + selectInput(d.input); + } + } else { + var text = "", ranges = []; + for (var i = 0; i < cm.doc.sel.ranges.length; i++) { + var line = cm.doc.sel.ranges[i].head.line; + var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}; + ranges.push(lineRange); + text += cm.getRange(lineRange.anchor, lineRange.head); + } + if (e.type == "cut") { + cm.setSelections(ranges, null, sel_dontScroll); + } else { + d.prevInput = ""; + d.input.value = text; + selectInput(d.input); + } + } + if (e.type == "cut") cm.state.cutIncoming = true; + } + on(d.input, "cut", prepareCopyCut); + on(d.input, "copy", prepareCopyCut); + + // Needed to handle Tab key in KHTML + if (khtml) on(d.sizer, "mouseup", function() { + if (activeElt() == d.input) d.input.blur(); + focusInput(cm); + }); + } + + // MOUSE EVENTS + + // Return true when the given mouse event happened in a widget + function eventInWidget(display, e) { + for (var n = e_target(e); n != display.wrapper; n = n.parentNode) { + if (!n || n.ignoreEvents || n.parentNode == display.sizer && n != display.mover) return true; + } + } + + // Given a mouse event, find the corresponding position. If liberal + // is false, it checks whether a gutter or scrollbar was clicked, + // and returns null if it was. forRect is used by rectangular + // selections, and tries to estimate a character position even for + // coordinates beyond the right of the text. + function posFromMouse(cm, e, liberal, forRect) { + var display = cm.display; + if (!liberal) { + var target = e_target(e); + if (target == display.scrollbarH || target == display.scrollbarV || + target == display.scrollbarFiller || target == display.gutterFiller) return null; + } + var x, y, space = display.lineSpace.getBoundingClientRect(); + // Fails unpredictably on IE[67] when mouse is dragged around quickly. + try { x = e.clientX - space.left; y = e.clientY - space.top; } + catch (e) { return null; } + var coords = coordsChar(cm, x, y), line; + if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) { + var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length; + coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff)); + } + return coords; + } + + // A mouse down can be a single click, double click, triple click, + // start of selection drag, start of text drag, new cursor + // (ctrl-click), rectangle drag (alt-drag), or xwin + // middle-click-paste. Or it might be a click on something we should + // not interfere with, such as a scrollbar or widget. + function onMouseDown(e) { + if (signalDOMEvent(this, e)) return; + var cm = this, display = cm.display; + display.shift = e.shiftKey; + + if (eventInWidget(display, e)) { + if (!webkit) { + // Briefly turn off draggability, to allow widgets to do + // normal dragging things. + display.scroller.draggable = false; + setTimeout(function(){display.scroller.draggable = true;}, 100); + } + return; + } + if (clickInGutter(cm, e)) return; + var start = posFromMouse(cm, e); + window.focus(); + + switch (e_button(e)) { + case 1: + if (start) + leftButtonDown(cm, e, start); + else if (e_target(e) == display.scroller) + e_preventDefault(e); + break; + case 2: + if (webkit) cm.state.lastMiddleDown = +new Date; + if (start) extendSelection(cm.doc, start); + setTimeout(bind(focusInput, cm), 20); + e_preventDefault(e); + break; + case 3: + if (captureRightClick) onContextMenu(cm, e); + break; + } + } + + var lastClick, lastDoubleClick; + function leftButtonDown(cm, e, start) { + setTimeout(bind(ensureFocus, cm), 0); + + var now = +new Date, type; + if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) { + type = "triple"; + } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) { + type = "double"; + lastDoubleClick = {time: now, pos: start}; + } else { + type = "single"; + lastClick = {time: now, pos: start}; + } + + var sel = cm.doc.sel, addNew = mac ? e.metaKey : e.ctrlKey; + if (cm.options.dragDrop && dragAndDrop && !addNew && !isReadOnly(cm) && + type == "single" && sel.contains(start) > -1 && sel.somethingSelected()) + leftButtonStartDrag(cm, e, start); + else + leftButtonSelect(cm, e, start, type, addNew); + } + + // Start a text drag. When it ends, see if any dragging actually + // happen, and treat as a click if it didn't. + function leftButtonStartDrag(cm, e, start) { + var display = cm.display; + var dragEnd = operation(cm, function(e2) { + if (webkit) display.scroller.draggable = false; + cm.state.draggingText = false; + off(document, "mouseup", dragEnd); + off(display.scroller, "drop", dragEnd); + if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) { + e_preventDefault(e2); + extendSelection(cm.doc, start); + focusInput(cm); + // Work around unexplainable focus problem in IE9 (#2127) + if (ie_upto10 && !ie_upto8) + setTimeout(function() {document.body.focus(); focusInput(cm);}, 20); + } + }); + // Let the drag handler handle this. + if (webkit) display.scroller.draggable = true; + cm.state.draggingText = dragEnd; + // IE's approach to draggable + if (display.scroller.dragDrop) display.scroller.dragDrop(); + on(document, "mouseup", dragEnd); + on(display.scroller, "drop", dragEnd); + } + + // Normal selection, as opposed to text dragging. + function leftButtonSelect(cm, e, start, type, addNew) { + var display = cm.display, doc = cm.doc; + e_preventDefault(e); + + var ourRange, ourIndex, startSel = doc.sel; + if (addNew && !e.shiftKey) { + ourIndex = doc.sel.contains(start); + if (ourIndex > -1) + ourRange = doc.sel.ranges[ourIndex]; + else + ourRange = new Range(start, start); + } else { + ourRange = doc.sel.primary(); + } + + if (e.altKey) { + type = "rect"; + if (!addNew) ourRange = new Range(start, start); + start = posFromMouse(cm, e, true, true); + ourIndex = -1; + } else if (type == "double") { + var word = findWordAt(doc, start); + if (cm.display.shift || doc.extend) + ourRange = extendRange(doc, ourRange, word.anchor, word.head); + else + ourRange = word; + } else if (type == "triple") { + var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0))); + if (cm.display.shift || doc.extend) + ourRange = extendRange(doc, ourRange, line.anchor, line.head); + else + ourRange = line; + } else { + ourRange = extendRange(doc, ourRange, start); + } + + if (!addNew) { + ourIndex = 0; + setSelection(doc, new Selection([ourRange], 0), sel_mouse); + startSel = doc.sel; + } else if (ourIndex > -1) { + replaceOneSelection(doc, ourIndex, ourRange, sel_mouse); + } else { + ourIndex = doc.sel.ranges.length; + setSelection(doc, normalizeSelection(doc.sel.ranges.concat([ourRange]), ourIndex), + {scroll: false, origin: "*mouse"}); + } + + var lastPos = start; + function extendTo(pos) { + if (cmp(lastPos, pos) == 0) return; + lastPos = pos; + + if (type == "rect") { + var ranges = [], tabSize = cm.options.tabSize; + var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize); + var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize); + var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol); + for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line)); + line <= end; line++) { + var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize); + if (left == right) + ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); + else if (text.length > leftPos) + ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); + } + if (!ranges.length) ranges.push(new Range(start, start)); + setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex), sel_mouse); + } else { + var oldRange = ourRange; + var anchor = oldRange.anchor, head = pos; + if (type != "single") { + if (type == "double") + var range = findWordAt(doc, pos); + else + var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0))); + if (cmp(range.anchor, anchor) > 0) { + head = range.head; + anchor = minPos(oldRange.from(), range.anchor); + } else { + head = range.anchor; + anchor = maxPos(oldRange.to(), range.head); + } + } + var ranges = startSel.ranges.slice(0); + ranges[ourIndex] = new Range(clipPos(doc, anchor), head); + setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse); + } + } + + var editorSize = display.wrapper.getBoundingClientRect(); + // Used to ensure timeout re-tries don't fire when another extend + // happened in the meantime (clearTimeout isn't reliable -- at + // least on Chrome, the timeouts still happen even when cleared, + // if the clear happens after their scheduled firing time). + var counter = 0; + + function extend(e) { + var curCount = ++counter; + var cur = posFromMouse(cm, e, true, type == "rect"); + if (!cur) return; + if (cmp(cur, lastPos) != 0) { + ensureFocus(cm); + extendTo(cur); + var visible = visibleLines(display, doc); + if (cur.line >= visible.to || cur.line < visible.from) + setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150); + } else { + var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0; + if (outside) setTimeout(operation(cm, function() { + if (counter != curCount) return; + display.scroller.scrollTop += outside; + extend(e); + }), 50); + } + } + + function done(e) { + counter = Infinity; + e_preventDefault(e); + focusInput(cm); + off(document, "mousemove", move); + off(document, "mouseup", up); + doc.history.lastSelOrigin = null; + } + + var move = operation(cm, function(e) { + if ((ie && !ie_upto9) ? !e.buttons : !e_button(e)) done(e); + else extend(e); + }); + var up = operation(cm, done); + on(document, "mousemove", move); + on(document, "mouseup", up); + } + + // Determines whether an event happened in the gutter, and fires the + // handlers for the corresponding event. + function gutterEvent(cm, e, type, prevent, signalfn) { + try { var mX = e.clientX, mY = e.clientY; } + catch(e) { return false; } + if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false; + if (prevent) e_preventDefault(e); + + var display = cm.display; + var lineBox = display.lineDiv.getBoundingClientRect(); + + if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e); + mY -= lineBox.top - display.viewOffset; + + for (var i = 0; i < cm.options.gutters.length; ++i) { + var g = display.gutters.childNodes[i]; + if (g && g.getBoundingClientRect().right >= mX) { + var line = lineAtHeight(cm.doc, mY); + var gutter = cm.options.gutters[i]; + signalfn(cm, type, cm, line, gutter, e); + return e_defaultPrevented(e); + } + } + } + + function clickInGutter(cm, e) { + return gutterEvent(cm, e, "gutterClick", true, signalLater); + } + + // Kludge to work around strange IE behavior where it'll sometimes + // re-fire a series of drag-related events right after the drop (#1551) + var lastDrop = 0; + + function onDrop(e) { + var cm = this; + if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) + return; + e_preventDefault(e); + if (ie) lastDrop = +new Date; + var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files; + if (!pos || isReadOnly(cm)) return; + // Might be a file drop, in which case we simply extract the text + // and insert it. + if (files && files.length && window.FileReader && window.File) { + var n = files.length, text = Array(n), read = 0; + var loadFile = function(file, i) { + var reader = new FileReader; + reader.onload = operation(cm, function() { + text[i] = reader.result; + if (++read == n) { + pos = clipPos(cm.doc, pos); + var change = {from: pos, to: pos, text: splitLines(text.join("\n")), origin: "paste"}; + makeChange(cm.doc, change); + setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change))); + } + }); + reader.readAsText(file); + }; + for (var i = 0; i < n; ++i) loadFile(files[i], i); + } else { // Normal drop + // Don't do a replace if the drop happened inside of the selected text. + if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) { + cm.state.draggingText(e); + // Ensure the editor is re-focused + setTimeout(bind(focusInput, cm), 20); + return; + } + try { + var text = e.dataTransfer.getData("Text"); + if (text) { + var selected = cm.state.draggingText && cm.listSelections(); + setSelectionNoUndo(cm.doc, simpleSelection(pos, pos)); + if (selected) for (var i = 0; i < selected.length; ++i) + replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag"); + cm.replaceSelection(text, "around", "paste"); + focusInput(cm); + } + } + catch(e){} + } + } + + function onDragStart(cm, e) { + if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; } + if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return; + + e.dataTransfer.setData("Text", cm.getSelection()); + + // Use dummy image instead of default browsers image. + // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there. + if (e.dataTransfer.setDragImage && !safari) { + var img = elt("img", null, null, "position: fixed; left: 0; top: 0;"); + img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="; + if (presto) { + img.width = img.height = 1; + cm.display.wrapper.appendChild(img); + // Force a relayout, or Opera won't use our image for some obscure reason + img._top = img.offsetTop; + } + e.dataTransfer.setDragImage(img, 0, 0); + if (presto) img.parentNode.removeChild(img); + } + } + + // SCROLL EVENTS + + // Sync the scrollable area and scrollbars, ensure the viewport + // covers the visible area. + function setScrollTop(cm, val) { + if (Math.abs(cm.doc.scrollTop - val) < 2) return; + cm.doc.scrollTop = val; + if (!gecko) updateDisplay(cm, {top: val}); + if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val; + if (cm.display.scrollbarV.scrollTop != val) cm.display.scrollbarV.scrollTop = val; + if (gecko) updateDisplay(cm); + startWorker(cm, 100); + } + // Sync scroller and scrollbar, ensure the gutter elements are + // aligned. + function setScrollLeft(cm, val, isScroller) { + if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return; + val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth); + cm.doc.scrollLeft = val; + alignHorizontally(cm); + if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val; + if (cm.display.scrollbarH.scrollLeft != val) cm.display.scrollbarH.scrollLeft = val; + } + + // Since the delta values reported on mouse wheel events are + // unstandardized between browsers and even browser versions, and + // generally horribly unpredictable, this code starts by measuring + // the scroll effect that the first few mouse wheel events have, + // and, from that, detects the way it can convert deltas to pixel + // offsets afterwards. + // + // The reason we want to know the amount a wheel event will scroll + // is that it gives us a chance to update the display before the + // actual scrolling happens, reducing flickering. + + var wheelSamples = 0, wheelPixelsPerUnit = null; + // Fill in a browser-detected starting value on browsers where we + // know one. These don't have to be accurate -- the result of them + // being wrong would just be a slight flicker on the first wheel + // scroll (if it is large enough). + if (ie) wheelPixelsPerUnit = -.53; + else if (gecko) wheelPixelsPerUnit = 15; + else if (chrome) wheelPixelsPerUnit = -.7; + else if (safari) wheelPixelsPerUnit = -1/3; + + function onScrollWheel(cm, e) { + var dx = e.wheelDeltaX, dy = e.wheelDeltaY; + if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail; + if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail; + else if (dy == null) dy = e.wheelDelta; + + var display = cm.display, scroll = display.scroller; + // Quit if there's nothing to scroll here + if (!(dx && scroll.scrollWidth > scroll.clientWidth || + dy && scroll.scrollHeight > scroll.clientHeight)) return; + + // Webkit browsers on OS X abort momentum scrolls when the target + // of the scroll event is removed from the scrollable element. + // This hack (see related code in patchDisplay) makes sure the + // element is kept around. + if (dy && mac && webkit) { + outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) { + for (var i = 0; i < view.length; i++) { + if (view[i].node == cur) { + cm.display.currentWheelTarget = cur; + break outer; + } + } + } + } + + // On some browsers, horizontal scrolling will cause redraws to + // happen before the gutter has been realigned, causing it to + // wriggle around in a most unseemly way. When we have an + // estimated pixels/delta value, we just handle horizontal + // scrolling entirely here. It'll be slightly off from native, but + // better than glitching out. + if (dx && !gecko && !presto && wheelPixelsPerUnit != null) { + if (dy) + setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight))); + setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth))); + e_preventDefault(e); + display.wheelStartX = null; // Abort measurement, if in progress + return; + } + + // 'Project' the visible viewport to cover the area that is being + // scrolled into view (if we know enough to estimate it). + if (dy && wheelPixelsPerUnit != null) { + var pixels = dy * wheelPixelsPerUnit; + var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight; + if (pixels < 0) top = Math.max(0, top + pixels - 50); + else bot = Math.min(cm.doc.height, bot + pixels + 50); + updateDisplay(cm, {top: top, bottom: bot}); + } + + if (wheelSamples < 20) { + if (display.wheelStartX == null) { + display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop; + display.wheelDX = dx; display.wheelDY = dy; + setTimeout(function() { + if (display.wheelStartX == null) return; + var movedX = scroll.scrollLeft - display.wheelStartX; + var movedY = scroll.scrollTop - display.wheelStartY; + var sample = (movedY && display.wheelDY && movedY / display.wheelDY) || + (movedX && display.wheelDX && movedX / display.wheelDX); + display.wheelStartX = display.wheelStartY = null; + if (!sample) return; + wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1); + ++wheelSamples; + }, 200); + } else { + display.wheelDX += dx; display.wheelDY += dy; + } + } + } + + // KEY EVENTS + + // Run a handler that was bound to a key. + function doHandleBinding(cm, bound, dropShift) { + if (typeof bound == "string") { + bound = commands[bound]; + if (!bound) return false; + } + // Ensure previous input has been read, so that the handler sees a + // consistent view of the document + if (cm.display.pollingFast && readInput(cm)) cm.display.pollingFast = false; + var prevShift = cm.display.shift, done = false; + try { + if (isReadOnly(cm)) cm.state.suppressEdits = true; + if (dropShift) cm.display.shift = false; + done = bound(cm) != Pass; + } finally { + cm.display.shift = prevShift; + cm.state.suppressEdits = false; + } + return done; + } + + // Collect the currently active keymaps. + function allKeyMaps(cm) { + var maps = cm.state.keyMaps.slice(0); + if (cm.options.extraKeys) maps.push(cm.options.extraKeys); + maps.push(cm.options.keyMap); + return maps; + } + + var maybeTransition; + // Handle a key from the keydown event. + function handleKeyBinding(cm, e) { + // Handle automatic keymap transitions + var startMap = getKeyMap(cm.options.keyMap), next = startMap.auto; + clearTimeout(maybeTransition); + if (next && !isModifierKey(e)) maybeTransition = setTimeout(function() { + if (getKeyMap(cm.options.keyMap) == startMap) { + cm.options.keyMap = (next.call ? next.call(null, cm) : next); + keyMapChanged(cm); + } + }, 50); + + var name = keyName(e, true), handled = false; + if (!name) return false; + var keymaps = allKeyMaps(cm); + + if (e.shiftKey) { + // First try to resolve full name (including 'Shift-'). Failing + // that, see if there is a cursor-motion command (starting with + // 'go') bound to the keyname without 'Shift-'. + handled = lookupKey("Shift-" + name, keymaps, function(b) {return doHandleBinding(cm, b, true);}) + || lookupKey(name, keymaps, function(b) { + if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion) + return doHandleBinding(cm, b); + }); + } else { + handled = lookupKey(name, keymaps, function(b) { return doHandleBinding(cm, b); }); + } + + if (handled) { + e_preventDefault(e); + restartBlink(cm); + signalLater(cm, "keyHandled", cm, name, e); + } + return handled; + } + + // Handle a key from the keypress event + function handleCharBinding(cm, e, ch) { + var handled = lookupKey("'" + ch + "'", allKeyMaps(cm), + function(b) { return doHandleBinding(cm, b, true); }); + if (handled) { + e_preventDefault(e); + restartBlink(cm); + signalLater(cm, "keyHandled", cm, "'" + ch + "'", e); + } + return handled; + } + + var lastStoppedKey = null; + function onKeyDown(e) { + var cm = this; + ensureFocus(cm); + if (signalDOMEvent(cm, e)) return; + // IE does strange things with escape. + if (ie_upto10 && e.keyCode == 27) e.returnValue = false; + var code = e.keyCode; + cm.display.shift = code == 16 || e.shiftKey; + var handled = handleKeyBinding(cm, e); + if (presto) { + lastStoppedKey = handled ? code : null; + // Opera has no cut event... we try to at least catch the key combo + if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey)) + cm.replaceSelection("", null, "cut"); + } + + // Turn mouse into crosshair when Alt is held on Mac. + if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className)) + showCrossHair(cm); + } + + function showCrossHair(cm) { + var lineDiv = cm.display.lineDiv; + addClass(lineDiv, "CodeMirror-crosshair"); + + function up(e) { + if (e.keyCode == 18 || !e.altKey) { + rmClass(lineDiv, "CodeMirror-crosshair"); + off(document, "keyup", up); + off(document, "mouseover", up); + } + } + on(document, "keyup", up); + on(document, "mouseover", up); + } + + function onKeyUp(e) { + if (signalDOMEvent(this, e)) return; + if (e.keyCode == 16) this.doc.sel.shift = false; + } + + function onKeyPress(e) { + var cm = this; + if (signalDOMEvent(cm, e)) return; + var keyCode = e.keyCode, charCode = e.charCode; + if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;} + if (((presto && (!e.which || e.which < 10)) || khtml) && handleKeyBinding(cm, e)) return; + var ch = String.fromCharCode(charCode == null ? keyCode : charCode); + if (handleCharBinding(cm, e, ch)) return; + if (ie && !ie_upto8) cm.display.inputHasSelection = null; + fastPoll(cm); + } + + // FOCUS/BLUR EVENTS + + function onFocus(cm) { + if (cm.options.readOnly == "nocursor") return; + if (!cm.state.focused) { + signal(cm, "focus", cm); + cm.state.focused = true; + addClass(cm.display.wrapper, "CodeMirror-focused"); + // The prevInput test prevents this from firing when a context + // menu is closed (since the resetInput would kill the + // select-all detection hack) + if (!cm.curOp && cm.display.selForContextMenu == cm.doc.sel) { + resetInput(cm); + if (webkit) setTimeout(bind(resetInput, cm, true), 0); // Issue #1730 + } + } + slowPoll(cm); + restartBlink(cm); + } + function onBlur(cm) { + if (cm.state.focused) { + signal(cm, "blur", cm); + cm.state.focused = false; + rmClass(cm.display.wrapper, "CodeMirror-focused"); + } + clearInterval(cm.display.blinker); + setTimeout(function() {if (!cm.state.focused) cm.display.shift = false;}, 150); + } + + // CONTEXT MENU HANDLING + + var detectingSelectAll; + // To make the context menu work, we need to briefly unhide the + // textarea (making it as unobtrusive as possible) to let the + // right-click take effect on it. + function onContextMenu(cm, e) { + if (signalDOMEvent(cm, e, "contextmenu")) return; + var display = cm.display; + if (eventInWidget(display, e) || contextMenuInGutter(cm, e)) return; + + var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop; + if (!pos || presto) return; // Opera is difficult. + + // Reset the current text selection only if the click is done outside of the selection + // and 'resetSelectionOnContextMenu' option is true. + var reset = cm.options.resetSelectionOnContextMenu; + if (reset && cm.doc.sel.contains(pos) == -1) + operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); + + var oldCSS = display.input.style.cssText; + display.inputDiv.style.position = "absolute"; + display.input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) + + "px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: " + + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + + "; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"; + focusInput(cm); + resetInput(cm); + // Adds "Select all" to context menu in FF + if (!cm.somethingSelected()) display.input.value = display.prevInput = " "; + display.selForContextMenu = cm.doc.sel; + + // Select-all will be greyed out if there's nothing to select, so + // this adds a zero-width space so that we can later check whether + // it got selected. + function prepareSelectAllHack() { + if (display.input.selectionStart != null) { + var selected = cm.somethingSelected(); + var extval = display.input.value = "\u200b" + (selected ? display.input.value : ""); + display.prevInput = selected ? "" : "\u200b"; + display.input.selectionStart = 1; display.input.selectionEnd = extval.length; + } + } + function rehide() { + display.inputDiv.style.position = "relative"; + display.input.style.cssText = oldCSS; + if (ie_upto8) display.scrollbarV.scrollTop = display.scroller.scrollTop = scrollPos; + slowPoll(cm); + + // Try to detect the user choosing select-all + if (display.input.selectionStart != null) { + if (!ie || ie_upto8) prepareSelectAllHack(); + clearTimeout(detectingSelectAll); + var i = 0, poll = function() { + if (display.selForContextMenu == cm.doc.sel && display.input.selectionStart == 0) + operation(cm, commands.selectAll)(cm); + else if (i++ < 10) detectingSelectAll = setTimeout(poll, 500); + else resetInput(cm); + }; + detectingSelectAll = setTimeout(poll, 200); + } + } + + if (ie && !ie_upto8) prepareSelectAllHack(); + if (captureRightClick) { + e_stop(e); + var mouseup = function() { + off(window, "mouseup", mouseup); + setTimeout(rehide, 20); + }; + on(window, "mouseup", mouseup); + } else { + setTimeout(rehide, 50); + } + } + + function contextMenuInGutter(cm, e) { + if (!hasHandler(cm, "gutterContextMenu")) return false; + return gutterEvent(cm, e, "gutterContextMenu", false, signal); + } + + // UPDATING + + // Compute the position of the end of a change (its 'to' property + // refers to the pre-change end). + var changeEnd = CodeMirror.changeEnd = function(change) { + if (!change.text) return change.to; + return Pos(change.from.line + change.text.length - 1, + lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0)); + }; + + // Adjust a position to refer to the post-change position of the + // same text, or the end of the change if the change covers it. + function adjustForChange(pos, change) { + if (cmp(pos, change.from) < 0) return pos; + if (cmp(pos, change.to) <= 0) return changeEnd(change); + + var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch; + if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch; + return Pos(line, ch); + } + + function computeSelAfterChange(doc, change) { + var out = []; + for (var i = 0; i < doc.sel.ranges.length; i++) { + var range = doc.sel.ranges[i]; + out.push(new Range(adjustForChange(range.anchor, change), + adjustForChange(range.head, change))); + } + return normalizeSelection(out, doc.sel.primIndex); + } + + function offsetPos(pos, old, nw) { + if (pos.line == old.line) + return Pos(nw.line, pos.ch - old.ch + nw.ch); + else + return Pos(nw.line + (pos.line - old.line), pos.ch); + } + + // Used by replaceSelections to allow moving the selection to the + // start or around the replaced test. Hint may be "start" or "around". + function computeReplacedSel(doc, changes, hint) { + var out = []; + var oldPrev = Pos(doc.first, 0), newPrev = oldPrev; + for (var i = 0; i < changes.length; i++) { + var change = changes[i]; + var from = offsetPos(change.from, oldPrev, newPrev); + var to = offsetPos(changeEnd(change), oldPrev, newPrev); + oldPrev = change.to; + newPrev = to; + if (hint == "around") { + var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0; + out[i] = new Range(inv ? to : from, inv ? from : to); + } else { + out[i] = new Range(from, from); + } + } + return new Selection(out, doc.sel.primIndex); + } + + // Allow "beforeChange" event handlers to influence a change + function filterChange(doc, change, update) { + var obj = { + canceled: false, + from: change.from, + to: change.to, + text: change.text, + origin: change.origin, + cancel: function() { this.canceled = true; } + }; + if (update) obj.update = function(from, to, text, origin) { + if (from) this.from = clipPos(doc, from); + if (to) this.to = clipPos(doc, to); + if (text) this.text = text; + if (origin !== undefined) this.origin = origin; + }; + signal(doc, "beforeChange", doc, obj); + if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj); + + if (obj.canceled) return null; + return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}; + } + + // Apply a change to a document, and add it to the document's + // history, and propagating it to all linked documents. + function makeChange(doc, change, ignoreReadOnly) { + if (doc.cm) { + if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly); + if (doc.cm.state.suppressEdits) return; + } + + if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) { + change = filterChange(doc, change, true); + if (!change) return; + } + + // Possibly split or suppress the update based on the presence + // of read-only spans in its range. + var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to); + if (split) { + for (var i = split.length - 1; i >= 0; --i) + makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text}); + } else { + makeChangeInner(doc, change); + } + } + + function makeChangeInner(doc, change) { + if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return; + var selAfter = computeSelAfterChange(doc, change); + addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN); + + makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change)); + var rebased = []; + + linkedDocs(doc, function(doc, sharedHist) { + if (!sharedHist && indexOf(rebased, doc.history) == -1) { + rebaseHist(doc.history, change); + rebased.push(doc.history); + } + makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change)); + }); + } + + // Revert a change stored in a document's history. + function makeChangeFromHistory(doc, type, allowSelectionOnly) { + if (doc.cm && doc.cm.state.suppressEdits) return; + + var hist = doc.history, event, selAfter = doc.sel; + var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done; + + // Verify that there is a useable event (so that ctrl-z won't + // needlessly clear selection events) + for (var i = 0; i < source.length; i++) { + event = source[i]; + if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges) + break; + } + if (i == source.length) return; + hist.lastOrigin = hist.lastSelOrigin = null; + + for (;;) { + event = source.pop(); + if (event.ranges) { + pushSelectionToHistory(event, dest); + if (allowSelectionOnly && !event.equals(doc.sel)) { + setSelection(doc, event, {clearRedo: false}); + return; + } + selAfter = event; + } + else break; + } + + // Build up a reverse change object to add to the opposite history + // stack (redo when undoing, and vice versa). + var antiChanges = []; + pushSelectionToHistory(selAfter, dest); + dest.push({changes: antiChanges, generation: hist.generation}); + hist.generation = event.generation || ++hist.maxGeneration; + + var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange"); + + for (var i = event.changes.length - 1; i >= 0; --i) { + var change = event.changes[i]; + change.origin = type; + if (filter && !filterChange(doc, change, false)) { + source.length = 0; + return; + } + + antiChanges.push(historyChangeFromChange(doc, change)); + + var after = i ? computeSelAfterChange(doc, change, null) : lst(source); + makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change)); + if (doc.cm) ensureCursorVisible(doc.cm); + var rebased = []; + + // Propagate to the linked documents + linkedDocs(doc, function(doc, sharedHist) { + if (!sharedHist && indexOf(rebased, doc.history) == -1) { + rebaseHist(doc.history, change); + rebased.push(doc.history); + } + makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change)); + }); + } + } + + // Sub-views need their line numbers shifted when text is added + // above or below them in the parent document. + function shiftDoc(doc, distance) { + doc.first += distance; + doc.sel = new Selection(map(doc.sel.ranges, function(range) { + return new Range(Pos(range.anchor.line + distance, range.anchor.ch), + Pos(range.head.line + distance, range.head.ch)); + }), doc.sel.primIndex); + if (doc.cm) regChange(doc.cm, doc.first, doc.first - distance, distance); + } + + // More lower-level change function, handling only a single document + // (not linked ones). + function makeChangeSingleDoc(doc, change, selAfter, spans) { + if (doc.cm && !doc.cm.curOp) + return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans); + + if (change.to.line < doc.first) { + shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line)); + return; + } + if (change.from.line > doc.lastLine()) return; + + // Clip the change to the size of this doc + if (change.from.line < doc.first) { + var shift = change.text.length - 1 - (doc.first - change.from.line); + shiftDoc(doc, shift); + change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch), + text: [lst(change.text)], origin: change.origin}; + } + var last = doc.lastLine(); + if (change.to.line > last) { + change = {from: change.from, to: Pos(last, getLine(doc, last).text.length), + text: [change.text[0]], origin: change.origin}; + } + + change.removed = getBetween(doc, change.from, change.to); + + if (!selAfter) selAfter = computeSelAfterChange(doc, change, null); + if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans); + else updateDoc(doc, change, spans); + setSelectionNoUndo(doc, selAfter, sel_dontScroll); + } + + // Handle the interaction of a change to a document with the editor + // that this document is part of. + function makeChangeSingleDocInEditor(cm, change, spans) { + var doc = cm.doc, display = cm.display, from = change.from, to = change.to; + + var recomputeMaxLength = false, checkWidthStart = from.line; + if (!cm.options.lineWrapping) { + checkWidthStart = lineNo(visualLine(getLine(doc, from.line))); + doc.iter(checkWidthStart, to.line + 1, function(line) { + if (line == display.maxLine) { + recomputeMaxLength = true; + return true; + } + }); + } + + if (doc.sel.contains(change.from, change.to) > -1) + signalCursorActivity(cm); + + updateDoc(doc, change, spans, estimateHeight(cm)); + + if (!cm.options.lineWrapping) { + doc.iter(checkWidthStart, from.line + change.text.length, function(line) { + var len = lineLength(line); + if (len > display.maxLineLength) { + display.maxLine = line; + display.maxLineLength = len; + display.maxLineChanged = true; + recomputeMaxLength = false; + } + }); + if (recomputeMaxLength) cm.curOp.updateMaxLine = true; + } + + // Adjust frontier, schedule worker + doc.frontier = Math.min(doc.frontier, from.line); + startWorker(cm, 400); + + var lendiff = change.text.length - (to.line - from.line) - 1; + // Remember that these lines changed, for updating the display + if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change)) + regLineChange(cm, from.line, "text"); + else + regChange(cm, from.line, to.line + 1, lendiff); + + var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change"); + if (changeHandler || changesHandler) { + var obj = { + from: from, to: to, + text: change.text, + removed: change.removed, + origin: change.origin + }; + if (changeHandler) signalLater(cm, "change", cm, obj); + if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); + } + } + + function replaceRange(doc, code, from, to, origin) { + if (!to) to = from; + if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; } + if (typeof code == "string") code = splitLines(code); + makeChange(doc, {from: from, to: to, text: code, origin: origin}); + } + + // SCROLLING THINGS INTO VIEW + + // If an editor sits on the top or bottom of the window, partially + // scrolled out of view, this ensures that the cursor is visible. + function maybeScrollWindow(cm, coords) { + var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null; + if (coords.top + box.top < 0) doScroll = true; + else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false; + if (doScroll != null && !phantom) { + var scrollNode = elt("div", "\u200b", null, "position: absolute; top: " + + (coords.top - display.viewOffset - paddingTop(cm.display)) + "px; height: " + + (coords.bottom - coords.top + scrollerCutOff) + "px; left: " + + coords.left + "px; width: 2px;"); + cm.display.lineSpace.appendChild(scrollNode); + scrollNode.scrollIntoView(doScroll); + cm.display.lineSpace.removeChild(scrollNode); + } + } + + // Scroll a given position into view (immediately), verifying that + // it actually became visible (as line heights are accurately + // measured, the position of something may 'drift' during drawing). + function scrollPosIntoView(cm, pos, end, margin) { + if (margin == null) margin = 0; + for (;;) { + var changed = false, coords = cursorCoords(cm, pos); + var endCoords = !end || end == pos ? coords : cursorCoords(cm, end); + var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left), + Math.min(coords.top, endCoords.top) - margin, + Math.max(coords.left, endCoords.left), + Math.max(coords.bottom, endCoords.bottom) + margin); + var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft; + if (scrollPos.scrollTop != null) { + setScrollTop(cm, scrollPos.scrollTop); + if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true; + } + if (scrollPos.scrollLeft != null) { + setScrollLeft(cm, scrollPos.scrollLeft); + if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true; + } + if (!changed) return coords; + } + } + + // Scroll a given set of coordinates into view (immediately). + function scrollIntoView(cm, x1, y1, x2, y2) { + var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2); + if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop); + if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft); + } + + // Calculate a new scroll position needed to scroll the given + // rectangle into view. Returns an object with scrollTop and + // scrollLeft properties. When these are undefined, the + // vertical/horizontal position does not need to be adjusted. + function calculateScrollPos(cm, x1, y1, x2, y2) { + var display = cm.display, snapMargin = textHeight(cm.display); + if (y1 < 0) y1 = 0; + var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop; + var screen = display.scroller.clientHeight - scrollerCutOff, result = {}; + var docBottom = cm.doc.height + paddingVert(display); + var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin; + if (y1 < screentop) { + result.scrollTop = atTop ? 0 : y1; + } else if (y2 > screentop + screen) { + var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen); + if (newTop != screentop) result.scrollTop = newTop; + } + + var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft; + var screenw = display.scroller.clientWidth - scrollerCutOff; + x1 += display.gutters.offsetWidth; x2 += display.gutters.offsetWidth; + var gutterw = display.gutters.offsetWidth; + var atLeft = x1 < gutterw + 10; + if (x1 < screenleft + gutterw || atLeft) { + if (atLeft) x1 = 0; + result.scrollLeft = Math.max(0, x1 - 10 - gutterw); + } else if (x2 > screenw + screenleft - 3) { + result.scrollLeft = x2 + 10 - screenw; + } + return result; + } + + // Store a relative adjustment to the scroll position in the current + // operation (to be applied when the operation finishes). + function addToScrollPos(cm, left, top) { + if (left != null || top != null) resolveScrollToPos(cm); + if (left != null) + cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left; + if (top != null) + cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top; + } + + // Make sure that at the end of the operation the current cursor is + // shown. + function ensureCursorVisible(cm) { + resolveScrollToPos(cm); + var cur = cm.getCursor(), from = cur, to = cur; + if (!cm.options.lineWrapping) { + from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur; + to = Pos(cur.line, cur.ch + 1); + } + cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true}; + } + + // When an operation has its scrollToPos property set, and another + // scroll action is applied before the end of the operation, this + // 'simulates' scrolling that position into view in a cheap way, so + // that the effect of intermediate scroll commands is not ignored. + function resolveScrollToPos(cm) { + var range = cm.curOp.scrollToPos; + if (range) { + cm.curOp.scrollToPos = null; + var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to); + var sPos = calculateScrollPos(cm, Math.min(from.left, to.left), + Math.min(from.top, to.top) - range.margin, + Math.max(from.right, to.right), + Math.max(from.bottom, to.bottom) + range.margin); + cm.scrollTo(sPos.scrollLeft, sPos.scrollTop); + } + } + + // API UTILITIES + + // Indent the given line. The how parameter can be "smart", + // "add"/null, "subtract", or "prev". When aggressive is false + // (typically set to true for forced single-line indents), empty + // lines are not indented, and places where the mode returns Pass + // are left alone. + function indentLine(cm, n, how, aggressive) { + var doc = cm.doc, state; + if (how == null) how = "add"; + if (how == "smart") { + // Fall back to "prev" when the mode doesn't have an indentation + // method. + if (!cm.doc.mode.indent) how = "prev"; + else state = getStateBefore(cm, n); + } + + var tabSize = cm.options.tabSize; + var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize); + if (line.stateAfter) line.stateAfter = null; + var curSpaceString = line.text.match(/^\s*/)[0], indentation; + if (!aggressive && !/\S/.test(line.text)) { + indentation = 0; + how = "not"; + } else if (how == "smart") { + indentation = cm.doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text); + if (indentation == Pass) { + if (!aggressive) return; + how = "prev"; + } + } + if (how == "prev") { + if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize); + else indentation = 0; + } else if (how == "add") { + indentation = curSpace + cm.options.indentUnit; + } else if (how == "subtract") { + indentation = curSpace - cm.options.indentUnit; + } else if (typeof how == "number") { + indentation = curSpace + how; + } + indentation = Math.max(0, indentation); + + var indentString = "", pos = 0; + if (cm.options.indentWithTabs) + for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} + if (pos < indentation) indentString += spaceStr(indentation - pos); + + if (indentString != curSpaceString) { + replaceRange(cm.doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input"); + } else { + // Ensure that, if the cursor was in the whitespace at the start + // of the line, it is moved to the end of that space. + for (var i = 0; i < doc.sel.ranges.length; i++) { + var range = doc.sel.ranges[i]; + if (range.head.line == n && range.head.ch < curSpaceString.length) { + var pos = Pos(n, curSpaceString.length); + replaceOneSelection(doc, i, new Range(pos, pos)); + break; + } + } + } + line.stateAfter = null; + } + + // Utility for applying a change to a line by handle or number, + // returning the number and optionally registering the line as + // changed. + function changeLine(cm, handle, changeType, op) { + var no = handle, line = handle, doc = cm.doc; + if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle)); + else no = lineNo(handle); + if (no == null) return null; + if (op(line, no)) regLineChange(cm, no, changeType); + return line; + } + + // Helper for deleting text near the selection(s), used to implement + // backspace, delete, and similar functionality. + function deleteNearSelection(cm, compute) { + var ranges = cm.doc.sel.ranges, kill = []; + // Build up a set of ranges to kill first, merging overlapping + // ranges. + for (var i = 0; i < ranges.length; i++) { + var toKill = compute(ranges[i]); + while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) { + var replaced = kill.pop(); + if (cmp(replaced.from, toKill.from) < 0) { + toKill.from = replaced.from; + break; + } + } + kill.push(toKill); + } + // Next, remove those actual ranges. + runInOp(cm, function() { + for (var i = kill.length - 1; i >= 0; i--) + replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); + ensureCursorVisible(cm); + }); + } + + // Used for horizontal relative motion. Dir is -1 or 1 (left or + // right), unit can be "char", "column" (like char, but doesn't + // cross line boundaries), "word" (across next word), or "group" (to + // the start of next group of word or non-word-non-whitespace + // chars). The visually param controls whether, in right-to-left + // text, direction 1 means to move towards the next index in the + // string, or towards the character to the right of the current + // position. The resulting position will have a hitSide=true + // property if it reached the end of the document. + function findPosH(doc, pos, dir, unit, visually) { + var line = pos.line, ch = pos.ch, origDir = dir; + var lineObj = getLine(doc, line); + var possible = true; + function findNextLine() { + var l = line + dir; + if (l < doc.first || l >= doc.first + doc.size) return (possible = false); + line = l; + return lineObj = getLine(doc, l); + } + function moveOnce(boundToLine) { + var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true); + if (next == null) { + if (!boundToLine && findNextLine()) { + if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj); + else ch = dir < 0 ? lineObj.text.length : 0; + } else return (possible = false); + } else ch = next; + return true; + } + + if (unit == "char") moveOnce(); + else if (unit == "column") moveOnce(true); + else if (unit == "word" || unit == "group") { + var sawType = null, group = unit == "group"; + for (var first = true;; first = false) { + if (dir < 0 && !moveOnce(!first)) break; + var cur = lineObj.text.charAt(ch) || "\n"; + var type = isWordChar(cur) ? "w" + : group && cur == "\n" ? "n" + : !group || /\s/.test(cur) ? null + : "p"; + if (group && !first && !type) type = "s"; + if (sawType && sawType != type) { + if (dir < 0) {dir = 1; moveOnce();} + break; + } + + if (type) sawType = type; + if (dir > 0 && !moveOnce(!first)) break; + } + } + var result = skipAtomic(doc, Pos(line, ch), origDir, true); + if (!possible) result.hitSide = true; + return result; + } + + // For relative vertical movement. Dir may be -1 or 1. Unit can be + // "page" or "line". The resulting position will have a hitSide=true + // property if it reached the end of the document. + function findPosV(cm, pos, dir, unit) { + var doc = cm.doc, x = pos.left, y; + if (unit == "page") { + var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight); + y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display)); + } else if (unit == "line") { + y = dir > 0 ? pos.bottom + 3 : pos.top - 3; + } + for (;;) { + var target = coordsChar(cm, x, y); + if (!target.outside) break; + if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; } + y += dir * 5; + } + return target; + } + + // Find the word at the given position (as returned by coordsChar). + function findWordAt(doc, pos) { + var line = getLine(doc, pos.line).text; + var start = pos.ch, end = pos.ch; + if (line) { + if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end; + var startChar = line.charAt(start); + var check = isWordChar(startChar) ? isWordChar + : /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);} + : function(ch) {return !/\s/.test(ch) && !isWordChar(ch);}; + while (start > 0 && check(line.charAt(start - 1))) --start; + while (end < line.length && check(line.charAt(end))) ++end; + } + return new Range(Pos(pos.line, start), Pos(pos.line, end)); + } + + // EDITOR METHODS + + // The publicly visible API. Note that methodOp(f) means + // 'wrap f in an operation, performed on its `this` parameter'. + + // This is not the complete set of editor methods. Most of the + // methods defined on the Doc type are also injected into + // CodeMirror.prototype, for backwards compatibility and + // convenience. + + CodeMirror.prototype = { + constructor: CodeMirror, + focus: function(){window.focus(); focusInput(this); fastPoll(this);}, + + setOption: function(option, value) { + var options = this.options, old = options[option]; + if (options[option] == value && option != "mode") return; + options[option] = value; + if (optionHandlers.hasOwnProperty(option)) + operation(this, optionHandlers[option])(this, value, old); + }, + + getOption: function(option) {return this.options[option];}, + getDoc: function() {return this.doc;}, + + addKeyMap: function(map, bottom) { + this.state.keyMaps[bottom ? "push" : "unshift"](map); + }, + removeKeyMap: function(map) { + var maps = this.state.keyMaps; + for (var i = 0; i < maps.length; ++i) + if (maps[i] == map || (typeof maps[i] != "string" && maps[i].name == map)) { + maps.splice(i, 1); + return true; + } + }, + + addOverlay: methodOp(function(spec, options) { + var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec); + if (mode.startState) throw new Error("Overlays may not be stateful."); + this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque}); + this.state.modeGen++; + regChange(this); + }), + removeOverlay: methodOp(function(spec) { + var overlays = this.state.overlays; + for (var i = 0; i < overlays.length; ++i) { + var cur = overlays[i].modeSpec; + if (cur == spec || typeof spec == "string" && cur.name == spec) { + overlays.splice(i, 1); + this.state.modeGen++; + regChange(this); + return; + } + } + }), + + indentLine: methodOp(function(n, dir, aggressive) { + if (typeof dir != "string" && typeof dir != "number") { + if (dir == null) dir = this.options.smartIndent ? "smart" : "prev"; + else dir = dir ? "add" : "subtract"; + } + if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive); + }), + indentSelection: methodOp(function(how) { + var ranges = this.doc.sel.ranges, end = -1; + for (var i = 0; i < ranges.length; i++) { + var range = ranges[i]; + if (!range.empty()) { + var start = Math.max(end, range.from().line); + var to = range.to(); + end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1; + for (var j = start; j < end; ++j) + indentLine(this, j, how); + } else if (range.head.line > end) { + indentLine(this, range.head.line, how, true); + end = range.head.line; + if (i == this.doc.sel.primIndex) ensureCursorVisible(this); + } + } + }), + + // Fetch the parser token for a given character. Useful for hacks + // that want to inspect the mode state (say, for completion). + getTokenAt: function(pos, precise) { + var doc = this.doc; + pos = clipPos(doc, pos); + var state = getStateBefore(this, pos.line, precise), mode = this.doc.mode; + var line = getLine(doc, pos.line); + var stream = new StringStream(line.text, this.options.tabSize); + while (stream.pos < pos.ch && !stream.eol()) { + stream.start = stream.pos; + var style = readToken(mode, stream, state); + } + return {start: stream.start, + end: stream.pos, + string: stream.current(), + type: style || null, + state: state}; + }, + + getTokenTypeAt: function(pos) { + pos = clipPos(this.doc, pos); + var styles = getLineStyles(this, getLine(this.doc, pos.line)); + var before = 0, after = (styles.length - 1) / 2, ch = pos.ch; + var type; + if (ch == 0) type = styles[2]; + else for (;;) { + var mid = (before + after) >> 1; + if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid; + else if (styles[mid * 2 + 1] < ch) before = mid + 1; + else { type = styles[mid * 2 + 2]; break; } + } + var cut = type ? type.indexOf("cm-overlay ") : -1; + return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1); + }, + + getModeAt: function(pos) { + var mode = this.doc.mode; + if (!mode.innerMode) return mode; + return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode; + }, + + getHelper: function(pos, type) { + return this.getHelpers(pos, type)[0]; + }, + + getHelpers: function(pos, type) { + var found = []; + if (!helpers.hasOwnProperty(type)) return helpers; + var help = helpers[type], mode = this.getModeAt(pos); + if (typeof mode[type] == "string") { + if (help[mode[type]]) found.push(help[mode[type]]); + } else if (mode[type]) { + for (var i = 0; i < mode[type].length; i++) { + var val = help[mode[type][i]]; + if (val) found.push(val); + } + } else if (mode.helperType && help[mode.helperType]) { + found.push(help[mode.helperType]); + } else if (help[mode.name]) { + found.push(help[mode.name]); + } + for (var i = 0; i < help._global.length; i++) { + var cur = help._global[i]; + if (cur.pred(mode, this) && indexOf(found, cur.val) == -1) + found.push(cur.val); + } + return found; + }, + + getStateAfter: function(line, precise) { + var doc = this.doc; + line = clipLine(doc, line == null ? doc.first + doc.size - 1: line); + return getStateBefore(this, line + 1, precise); + }, + + cursorCoords: function(start, mode) { + var pos, range = this.doc.sel.primary(); + if (start == null) pos = range.head; + else if (typeof start == "object") pos = clipPos(this.doc, start); + else pos = start ? range.from() : range.to(); + return cursorCoords(this, pos, mode || "page"); + }, + + charCoords: function(pos, mode) { + return charCoords(this, clipPos(this.doc, pos), mode || "page"); + }, + + coordsChar: function(coords, mode) { + coords = fromCoordSystem(this, coords, mode || "page"); + return coordsChar(this, coords.left, coords.top); + }, + + lineAtHeight: function(height, mode) { + height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top; + return lineAtHeight(this.doc, height + this.display.viewOffset); + }, + heightAtLine: function(line, mode) { + var end = false, last = this.doc.first + this.doc.size - 1; + if (line < this.doc.first) line = this.doc.first; + else if (line > last) { line = last; end = true; } + var lineObj = getLine(this.doc, line); + return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page").top + + (end ? this.doc.height - heightAtLine(lineObj) : 0); + }, + + defaultTextHeight: function() { return textHeight(this.display); }, + defaultCharWidth: function() { return charWidth(this.display); }, + + setGutterMarker: methodOp(function(line, gutterID, value) { + return changeLine(this, line, "gutter", function(line) { + var markers = line.gutterMarkers || (line.gutterMarkers = {}); + markers[gutterID] = value; + if (!value && isEmpty(markers)) line.gutterMarkers = null; + return true; + }); + }), + + clearGutter: methodOp(function(gutterID) { + var cm = this, doc = cm.doc, i = doc.first; + doc.iter(function(line) { + if (line.gutterMarkers && line.gutterMarkers[gutterID]) { + line.gutterMarkers[gutterID] = null; + regLineChange(cm, i, "gutter"); + if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null; + } + ++i; + }); + }), + + addLineClass: methodOp(function(handle, where, cls) { + return changeLine(this, handle, "class", function(line) { + var prop = where == "text" ? "textClass" : where == "background" ? "bgClass" : "wrapClass"; + if (!line[prop]) line[prop] = cls; + else if (new RegExp("(?:^|\\s)" + cls + "(?:$|\\s)").test(line[prop])) return false; + else line[prop] += " " + cls; + return true; + }); + }), + + removeLineClass: methodOp(function(handle, where, cls) { + return changeLine(this, handle, "class", function(line) { + var prop = where == "text" ? "textClass" : where == "background" ? "bgClass" : "wrapClass"; + var cur = line[prop]; + if (!cur) return false; + else if (cls == null) line[prop] = null; + else { + var found = cur.match(new RegExp("(?:^|\\s+)" + cls + "(?:$|\\s+)")); + if (!found) return false; + var end = found.index + found[0].length; + line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null; + } + return true; + }); + }), + + addLineWidget: methodOp(function(handle, node, options) { + return addLineWidget(this, handle, node, options); + }), + + removeLineWidget: function(widget) { widget.clear(); }, + + lineInfo: function(line) { + if (typeof line == "number") { + if (!isLine(this.doc, line)) return null; + var n = line; + line = getLine(this.doc, line); + if (!line) return null; + } else { + var n = lineNo(line); + if (n == null) return null; + } + return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers, + textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass, + widgets: line.widgets}; + }, + + getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo};}, + + addWidget: function(pos, node, scroll, vert, horiz) { + var display = this.display; + pos = cursorCoords(this, clipPos(this.doc, pos)); + var top = pos.bottom, left = pos.left; + node.style.position = "absolute"; + display.sizer.appendChild(node); + if (vert == "over") { + top = pos.top; + } else if (vert == "above" || vert == "near") { + var vspace = Math.max(display.wrapper.clientHeight, this.doc.height), + hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth); + // Default to positioning above (if specified and possible); otherwise default to positioning below + if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight) + top = pos.top - node.offsetHeight; + else if (pos.bottom + node.offsetHeight <= vspace) + top = pos.bottom; + if (left + node.offsetWidth > hspace) + left = hspace - node.offsetWidth; + } + node.style.top = top + "px"; + node.style.left = node.style.right = ""; + if (horiz == "right") { + left = display.sizer.clientWidth - node.offsetWidth; + node.style.right = "0px"; + } else { + if (horiz == "left") left = 0; + else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2; + node.style.left = left + "px"; + } + if (scroll) + scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight); + }, + + triggerOnKeyDown: methodOp(onKeyDown), + triggerOnKeyPress: methodOp(onKeyPress), + triggerOnKeyUp: methodOp(onKeyUp), + + execCommand: function(cmd) { + if (commands.hasOwnProperty(cmd)) + return commands[cmd](this); + }, + + findPosH: function(from, amount, unit, visually) { + var dir = 1; + if (amount < 0) { dir = -1; amount = -amount; } + for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) { + cur = findPosH(this.doc, cur, dir, unit, visually); + if (cur.hitSide) break; + } + return cur; + }, + + moveH: methodOp(function(dir, unit) { + var cm = this; + cm.extendSelectionsBy(function(range) { + if (cm.display.shift || cm.doc.extend || range.empty()) + return findPosH(cm.doc, range.head, dir, unit, cm.options.rtlMoveVisually); + else + return dir < 0 ? range.from() : range.to(); + }, sel_move); + }), + + deleteH: methodOp(function(dir, unit) { + var sel = this.doc.sel, doc = this.doc; + if (sel.somethingSelected()) + doc.replaceSelection("", null, "+delete"); + else + deleteNearSelection(this, function(range) { + var other = findPosH(doc, range.head, dir, unit, false); + return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}; + }); + }), + + findPosV: function(from, amount, unit, goalColumn) { + var dir = 1, x = goalColumn; + if (amount < 0) { dir = -1; amount = -amount; } + for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) { + var coords = cursorCoords(this, cur, "div"); + if (x == null) x = coords.left; + else coords.left = x; + cur = findPosV(this, coords, dir, unit); + if (cur.hitSide) break; + } + return cur; + }, + + moveV: methodOp(function(dir, unit) { + var cm = this, doc = this.doc, goals = []; + var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected(); + doc.extendSelectionsBy(function(range) { + if (collapse) + return dir < 0 ? range.from() : range.to(); + var headPos = cursorCoords(cm, range.head, "div"); + if (range.goalColumn != null) headPos.left = range.goalColumn; + goals.push(headPos.left); + var pos = findPosV(cm, headPos, dir, unit); + if (unit == "page" && range == doc.sel.primary()) + addToScrollPos(cm, null, charCoords(cm, pos, "div").top - headPos.top); + return pos; + }, sel_move); + if (goals.length) for (var i = 0; i < doc.sel.ranges.length; i++) + doc.sel.ranges[i].goalColumn = goals[i]; + }), + + toggleOverwrite: function(value) { + if (value != null && value == this.state.overwrite) return; + if (this.state.overwrite = !this.state.overwrite) + addClass(this.display.cursorDiv, "CodeMirror-overwrite"); + else + rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); + + signal(this, "overwriteToggle", this, this.state.overwrite); + }, + hasFocus: function() { return activeElt() == this.display.input; }, + + scrollTo: methodOp(function(x, y) { + if (x != null || y != null) resolveScrollToPos(this); + if (x != null) this.curOp.scrollLeft = x; + if (y != null) this.curOp.scrollTop = y; + }), + getScrollInfo: function() { + var scroller = this.display.scroller, co = scrollerCutOff; + return {left: scroller.scrollLeft, top: scroller.scrollTop, + height: scroller.scrollHeight - co, width: scroller.scrollWidth - co, + clientHeight: scroller.clientHeight - co, clientWidth: scroller.clientWidth - co}; + }, + + scrollIntoView: methodOp(function(range, margin) { + if (range == null) { + range = {from: this.doc.sel.primary().head, to: null}; + if (margin == null) margin = this.options.cursorScrollMargin; + } else if (typeof range == "number") { + range = {from: Pos(range, 0), to: null}; + } else if (range.from == null) { + range = {from: range, to: null}; + } + if (!range.to) range.to = range.from; + range.margin = margin || 0; + + if (range.from.line != null) { + resolveScrollToPos(this); + this.curOp.scrollToPos = range; + } else { + var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left), + Math.min(range.from.top, range.to.top) - range.margin, + Math.max(range.from.right, range.to.right), + Math.max(range.from.bottom, range.to.bottom) + range.margin); + this.scrollTo(sPos.scrollLeft, sPos.scrollTop); + } + }), + + setSize: methodOp(function(width, height) { + function interpret(val) { + return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; + } + if (width != null) this.display.wrapper.style.width = interpret(width); + if (height != null) this.display.wrapper.style.height = interpret(height); + if (this.options.lineWrapping) clearLineMeasurementCache(this); + this.curOp.forceUpdate = true; + signal(this, "refresh", this); + }), + + operation: function(f){return runInOp(this, f);}, + + refresh: methodOp(function() { + var oldHeight = this.display.cachedTextHeight; + regChange(this); + this.curOp.forceUpdate = true; + clearCaches(this); + this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop); + updateGutterSpace(this); + if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5) + estimateLineHeights(this); + signal(this, "refresh", this); + }), + + swapDoc: methodOp(function(doc) { + var old = this.doc; + old.cm = null; + attachDoc(this, doc); + clearCaches(this); + resetInput(this); + this.scrollTo(doc.scrollLeft, doc.scrollTop); + signalLater(this, "swapDoc", this, old); + return old; + }), + + getInputField: function(){return this.display.input;}, + getWrapperElement: function(){return this.display.wrapper;}, + getScrollerElement: function(){return this.display.scroller;}, + getGutterElement: function(){return this.display.gutters;} + }; + eventMixin(CodeMirror); + + // OPTION DEFAULTS + + // The default configuration options. + var defaults = CodeMirror.defaults = {}; + // Functions to run when options are changed. + var optionHandlers = CodeMirror.optionHandlers = {}; + + function option(name, deflt, handle, notOnInit) { + CodeMirror.defaults[name] = deflt; + if (handle) optionHandlers[name] = + notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle; + } + + // Passed to option handlers when there is no old value. + var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.Init";}}; + + // These two are, on init, called from the constructor because they + // have to be initialized before the editor can start at all. + option("value", "", function(cm, val) { + cm.setValue(val); + }, true); + option("mode", null, function(cm, val) { + cm.doc.modeOption = val; + loadMode(cm); + }, true); + + option("indentUnit", 2, loadMode, true); + option("indentWithTabs", false); + option("smartIndent", true); + option("tabSize", 4, function(cm) { + resetModeState(cm); + clearCaches(cm); + regChange(cm); + }, true); + option("specialChars", /[\t\u0000-\u0019\u00ad\u200b\u2028\u2029\ufeff]/g, function(cm, val) { + cm.options.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g"); + cm.refresh(); + }, true); + option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function(cm) {cm.refresh();}, true); + option("electricChars", true); + option("rtlMoveVisually", !windows); + option("wholeLineUpdateBefore", true); + + option("theme", "default", function(cm) { + themeChanged(cm); + guttersChanged(cm); + }, true); + option("keyMap", "default", keyMapChanged); + option("extraKeys", null); + + option("lineWrapping", false, wrappingChanged, true); + option("gutters", [], function(cm) { + setGuttersForLineNumbers(cm.options); + guttersChanged(cm); + }, true); + option("fixedGutter", true, function(cm, val) { + cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"; + cm.refresh(); + }, true); + option("coverGutterNextToScrollbar", false, updateScrollbars, true); + option("lineNumbers", false, function(cm) { + setGuttersForLineNumbers(cm.options); + guttersChanged(cm); + }, true); + option("firstLineNumber", 1, guttersChanged, true); + option("lineNumberFormatter", function(integer) {return integer;}, guttersChanged, true); + option("showCursorWhenSelecting", false, updateSelection, true); + + option("resetSelectionOnContextMenu", true); + + option("readOnly", false, function(cm, val) { + if (val == "nocursor") { + onBlur(cm); + cm.display.input.blur(); + cm.display.disabled = true; + } else { + cm.display.disabled = false; + if (!val) resetInput(cm); + } + }); + option("disableInput", false, function(cm, val) {if (!val) resetInput(cm);}, true); + option("dragDrop", true); + + option("cursorBlinkRate", 530); + option("cursorScrollMargin", 0); + option("cursorHeight", 1); + option("workTime", 100); + option("workDelay", 100); + option("flattenSpans", true, resetModeState, true); + option("addModeClass", false, resetModeState, true); + option("pollInterval", 100); + option("undoDepth", 200, function(cm, val){cm.doc.history.undoDepth = val;}); + option("historyEventDelay", 1250); + option("viewportMargin", 10, function(cm){cm.refresh();}, true); + option("maxHighlightLength", 10000, resetModeState, true); + option("moveInputWithCursor", true, function(cm, val) { + if (!val) cm.display.inputDiv.style.top = cm.display.inputDiv.style.left = 0; + }); + + option("tabindex", null, function(cm, val) { + cm.display.input.tabIndex = val || ""; + }); + option("autofocus", null); + + // MODE DEFINITION AND QUERYING + + // Known modes, by name and by MIME + var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {}; + + // Extra arguments are stored as the mode's dependencies, which is + // used by (legacy) mechanisms like loadmode.js to automatically + // load a mode. (Preferred mechanism is the require/define calls.) + CodeMirror.defineMode = function(name, mode) { + if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name; + if (arguments.length > 2) { + mode.dependencies = []; + for (var i = 2; i < arguments.length; ++i) mode.dependencies.push(arguments[i]); + } + modes[name] = mode; + }; + + CodeMirror.defineMIME = function(mime, spec) { + mimeModes[mime] = spec; + }; + + // Given a MIME type, a {name, ...options} config object, or a name + // string, return a mode config object. + CodeMirror.resolveMode = function(spec) { + if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) { + spec = mimeModes[spec]; + } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) { + var found = mimeModes[spec.name]; + if (typeof found == "string") found = {name: found}; + spec = createObj(found, spec); + spec.name = found.name; + } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) { + return CodeMirror.resolveMode("application/xml"); + } + if (typeof spec == "string") return {name: spec}; + else return spec || {name: "null"}; + }; + + // Given a mode spec (anything that resolveMode accepts), find and + // initialize an actual mode object. + CodeMirror.getMode = function(options, spec) { + var spec = CodeMirror.resolveMode(spec); + var mfactory = modes[spec.name]; + if (!mfactory) return CodeMirror.getMode(options, "text/plain"); + var modeObj = mfactory(options, spec); + if (modeExtensions.hasOwnProperty(spec.name)) { + var exts = modeExtensions[spec.name]; + for (var prop in exts) { + if (!exts.hasOwnProperty(prop)) continue; + if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop]; + modeObj[prop] = exts[prop]; + } + } + modeObj.name = spec.name; + if (spec.helperType) modeObj.helperType = spec.helperType; + if (spec.modeProps) for (var prop in spec.modeProps) + modeObj[prop] = spec.modeProps[prop]; + + return modeObj; + }; + + // Minimal default mode. + CodeMirror.defineMode("null", function() { + return {token: function(stream) {stream.skipToEnd();}}; + }); + CodeMirror.defineMIME("text/plain", "null"); + + // This can be used to attach properties to mode objects from + // outside the actual mode definition. + var modeExtensions = CodeMirror.modeExtensions = {}; + CodeMirror.extendMode = function(mode, properties) { + var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {}); + copyObj(properties, exts); + }; + + // EXTENSIONS + + CodeMirror.defineExtension = function(name, func) { + CodeMirror.prototype[name] = func; + }; + CodeMirror.defineDocExtension = function(name, func) { + Doc.prototype[name] = func; + }; + CodeMirror.defineOption = option; + + var initHooks = []; + CodeMirror.defineInitHook = function(f) {initHooks.push(f);}; + + var helpers = CodeMirror.helpers = {}; + CodeMirror.registerHelper = function(type, name, value) { + if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = {_global: []}; + helpers[type][name] = value; + }; + CodeMirror.registerGlobalHelper = function(type, name, predicate, value) { + CodeMirror.registerHelper(type, name, value); + helpers[type]._global.push({pred: predicate, val: value}); + }; + + // MODE STATE HANDLING + + // Utility functions for working with state. Exported because nested + // modes need to do this for their inner modes. + + var copyState = CodeMirror.copyState = function(mode, state) { + if (state === true) return state; + if (mode.copyState) return mode.copyState(state); + var nstate = {}; + for (var n in state) { + var val = state[n]; + if (val instanceof Array) val = val.concat([]); + nstate[n] = val; + } + return nstate; + }; + + var startState = CodeMirror.startState = function(mode, a1, a2) { + return mode.startState ? mode.startState(a1, a2) : true; + }; + + // Given a mode and a state (for that mode), find the inner mode and + // state at the position that the state refers to. + CodeMirror.innerMode = function(mode, state) { + while (mode.innerMode) { + var info = mode.innerMode(state); + if (!info || info.mode == mode) break; + state = info.state; + mode = info.mode; + } + return info || {mode: mode, state: state}; + }; + + // STANDARD COMMANDS + + // Commands are parameter-less actions that can be performed on an + // editor, mostly used for keybindings. + var commands = CodeMirror.commands = { + selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);}, + singleSelection: function(cm) { + cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); + }, + killLine: function(cm) { + deleteNearSelection(cm, function(range) { + if (range.empty()) { + var len = getLine(cm.doc, range.head.line).text.length; + if (range.head.ch == len && range.head.line < cm.lastLine()) + return {from: range.head, to: Pos(range.head.line + 1, 0)}; + else + return {from: range.head, to: Pos(range.head.line, len)}; + } else { + return {from: range.from(), to: range.to()}; + } + }); + }, + deleteLine: function(cm) { + deleteNearSelection(cm, function(range) { + return {from: Pos(range.from().line, 0), + to: clipPos(cm.doc, Pos(range.to().line + 1, 0))}; + }); + }, + delLineLeft: function(cm) { + deleteNearSelection(cm, function(range) { + return {from: Pos(range.from().line, 0), to: range.from()}; + }); + }, + undo: function(cm) {cm.undo();}, + redo: function(cm) {cm.redo();}, + undoSelection: function(cm) {cm.undoSelection();}, + redoSelection: function(cm) {cm.redoSelection();}, + goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));}, + goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));}, + goLineStart: function(cm) { + cm.extendSelectionsBy(function(range) { return lineStart(cm, range.head.line); }, sel_move); + }, + goLineStartSmart: function(cm) { + cm.extendSelectionsBy(function(range) { + var start = lineStart(cm, range.head.line); + var line = cm.getLineHandle(start.line); + var order = getOrder(line); + if (!order || order[0].level == 0) { + var firstNonWS = Math.max(0, line.text.search(/\S/)); + var inWS = range.head.line == start.line && range.head.ch <= firstNonWS && range.head.ch; + return Pos(start.line, inWS ? 0 : firstNonWS); + } + return start; + }, sel_move); + }, + goLineEnd: function(cm) { + cm.extendSelectionsBy(function(range) { return lineEnd(cm, range.head.line); }, sel_move); + }, + goLineRight: function(cm) { + cm.extendSelectionsBy(function(range) { + var top = cm.charCoords(range.head, "div").top + 5; + return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div"); + }, sel_move); + }, + goLineLeft: function(cm) { + cm.extendSelectionsBy(function(range) { + var top = cm.charCoords(range.head, "div").top + 5; + return cm.coordsChar({left: 0, top: top}, "div"); + }, sel_move); + }, + goLineUp: function(cm) {cm.moveV(-1, "line");}, + goLineDown: function(cm) {cm.moveV(1, "line");}, + goPageUp: function(cm) {cm.moveV(-1, "page");}, + goPageDown: function(cm) {cm.moveV(1, "page");}, + goCharLeft: function(cm) {cm.moveH(-1, "char");}, + goCharRight: function(cm) {cm.moveH(1, "char");}, + goColumnLeft: function(cm) {cm.moveH(-1, "column");}, + goColumnRight: function(cm) {cm.moveH(1, "column");}, + goWordLeft: function(cm) {cm.moveH(-1, "word");}, + goGroupRight: function(cm) {cm.moveH(1, "group");}, + goGroupLeft: function(cm) {cm.moveH(-1, "group");}, + goWordRight: function(cm) {cm.moveH(1, "word");}, + delCharBefore: function(cm) {cm.deleteH(-1, "char");}, + delCharAfter: function(cm) {cm.deleteH(1, "char");}, + delWordBefore: function(cm) {cm.deleteH(-1, "word");}, + delWordAfter: function(cm) {cm.deleteH(1, "word");}, + delGroupBefore: function(cm) {cm.deleteH(-1, "group");}, + delGroupAfter: function(cm) {cm.deleteH(1, "group");}, + indentAuto: function(cm) {cm.indentSelection("smart");}, + indentMore: function(cm) {cm.indentSelection("add");}, + indentLess: function(cm) {cm.indentSelection("subtract");}, + insertTab: function(cm) {cm.replaceSelection("\t");}, + insertSoftTab: function(cm) { + var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize; + for (var i = 0; i < ranges.length; i++) { + var pos = ranges[i].from(); + var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize); + spaces.push(new Array(tabSize - col % tabSize + 1).join(" ")); + } + cm.replaceSelections(spaces); + }, + defaultTab: function(cm) { + if (cm.somethingSelected()) cm.indentSelection("add"); + else cm.execCommand("insertTab"); + }, + transposeChars: function(cm) { + runInOp(cm, function() { + var ranges = cm.listSelections(); + for (var i = 0; i < ranges.length; i++) { + var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text; + if (cur.ch > 0 && cur.ch < line.length - 1) + cm.replaceRange(line.charAt(cur.ch) + line.charAt(cur.ch - 1), + Pos(cur.line, cur.ch - 1), Pos(cur.line, cur.ch + 1)); + } + }); + }, + newlineAndIndent: function(cm) { + runInOp(cm, function() { + var len = cm.listSelections().length; + for (var i = 0; i < len; i++) { + var range = cm.listSelections()[i]; + cm.replaceRange("\n", range.anchor, range.head, "+input"); + cm.indentLine(range.from().line + 1, null, true); + ensureCursorVisible(cm); + } + }); + }, + toggleOverwrite: function(cm) {cm.toggleOverwrite();} + }; + + // STANDARD KEYMAPS + + var keyMap = CodeMirror.keyMap = {}; + keyMap.basic = { + "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown", + "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown", + "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore", + "Tab": "defaultTab", "Shift-Tab": "indentAuto", + "Enter": "newlineAndIndent", "Insert": "toggleOverwrite", + "Esc": "singleSelection" + }; + // Note that the save and find-related commands aren't defined by + // default. User code or addons can define them. Unknown commands + // are simply ignored. + keyMap.pcDefault = { + "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo", + "Ctrl-Home": "goDocStart", "Ctrl-Up": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Down": "goDocEnd", + "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd", + "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find", + "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll", + "Ctrl-[": "indentLess", "Ctrl-]": "indentMore", + "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection", + fallthrough: "basic" + }; + keyMap.macDefault = { + "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo", + "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft", + "Alt-Right": "goGroupRight", "Cmd-Left": "goLineStart", "Cmd-Right": "goLineEnd", "Alt-Backspace": "delGroupBefore", + "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find", + "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll", + "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delLineLeft", + "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", + fallthrough: ["basic", "emacsy"] + }; + // Very basic readline/emacs-style bindings, which are standard on Mac. + keyMap.emacsy = { + "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown", + "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", + "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", + "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars" + }; + keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault; + + // KEYMAP DISPATCH + + function getKeyMap(val) { + if (typeof val == "string") return keyMap[val]; + else return val; + } + + // Given an array of keymaps and a key name, call handle on any + // bindings found, until that returns a truthy value, at which point + // we consider the key handled. Implements things like binding a key + // to false stopping further handling and keymap fallthrough. + var lookupKey = CodeMirror.lookupKey = function(name, maps, handle) { + function lookup(map) { + map = getKeyMap(map); + var found = map[name]; + if (found === false) return "stop"; + if (found != null && handle(found)) return true; + if (map.nofallthrough) return "stop"; + + var fallthrough = map.fallthrough; + if (fallthrough == null) return false; + if (Object.prototype.toString.call(fallthrough) != "[object Array]") + return lookup(fallthrough); + for (var i = 0; i < fallthrough.length; ++i) { + var done = lookup(fallthrough[i]); + if (done) return done; + } + return false; + } + + for (var i = 0; i < maps.length; ++i) { + var done = lookup(maps[i]); + if (done) return done != "stop"; + } + }; + + // Modifier key presses don't count as 'real' key presses for the + // purpose of keymap fallthrough. + var isModifierKey = CodeMirror.isModifierKey = function(event) { + var name = keyNames[event.keyCode]; + return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"; + }; + + // Look up the name of a key as indicated by an event object. + var keyName = CodeMirror.keyName = function(event, noShift) { + if (presto && event.keyCode == 34 && event["char"]) return false; + var name = keyNames[event.keyCode]; + if (name == null || event.altGraphKey) return false; + if (event.altKey) name = "Alt-" + name; + if (flipCtrlCmd ? event.metaKey : event.ctrlKey) name = "Ctrl-" + name; + if (flipCtrlCmd ? event.ctrlKey : event.metaKey) name = "Cmd-" + name; + if (!noShift && event.shiftKey) name = "Shift-" + name; + return name; + }; + + // FROMTEXTAREA + + CodeMirror.fromTextArea = function(textarea, options) { + if (!options) options = {}; + options.value = textarea.value; + if (!options.tabindex && textarea.tabindex) + options.tabindex = textarea.tabindex; + if (!options.placeholder && textarea.placeholder) + options.placeholder = textarea.placeholder; + // Set autofocus to true if this textarea is focused, or if it has + // autofocus and no other element is focused. + if (options.autofocus == null) { + var hasFocus = activeElt(); + options.autofocus = hasFocus == textarea || + textarea.getAttribute("autofocus") != null && hasFocus == document.body; + } + + function save() {textarea.value = cm.getValue();} + if (textarea.form) { + on(textarea.form, "submit", save); + // Deplorable hack to make the submit method do the right thing. + if (!options.leaveSubmitMethodAlone) { + var form = textarea.form, realSubmit = form.submit; + try { + var wrappedSubmit = form.submit = function() { + save(); + form.submit = realSubmit; + form.submit(); + form.submit = wrappedSubmit; + }; + } catch(e) {} + } + } + + textarea.style.display = "none"; + var cm = CodeMirror(function(node) { + textarea.parentNode.insertBefore(node, textarea.nextSibling); + }, options); + cm.save = save; + cm.getTextArea = function() { return textarea; }; + cm.toTextArea = function() { + save(); + textarea.parentNode.removeChild(cm.getWrapperElement()); + textarea.style.display = ""; + if (textarea.form) { + off(textarea.form, "submit", save); + if (typeof textarea.form.submit == "function") + textarea.form.submit = realSubmit; + } + }; + return cm; + }; + + // STRING STREAM + + // Fed to the mode parsers, provides helper functions to make + // parsers more succinct. + + var StringStream = CodeMirror.StringStream = function(string, tabSize) { + this.pos = this.start = 0; + this.string = string; + this.tabSize = tabSize || 8; + this.lastColumnPos = this.lastColumnValue = 0; + this.lineStart = 0; + }; + + StringStream.prototype = { + eol: function() {return this.pos >= this.string.length;}, + sol: function() {return this.pos == this.lineStart;}, + peek: function() {return this.string.charAt(this.pos) || undefined;}, + next: function() { + if (this.pos < this.string.length) + return this.string.charAt(this.pos++); + }, + eat: function(match) { + var ch = this.string.charAt(this.pos); + if (typeof match == "string") var ok = ch == match; + else var ok = ch && (match.test ? match.test(ch) : match(ch)); + if (ok) {++this.pos; return ch;} + }, + eatWhile: function(match) { + var start = this.pos; + while (this.eat(match)){} + return this.pos > start; + }, + eatSpace: function() { + var start = this.pos; + while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos; + return this.pos > start; + }, + skipToEnd: function() {this.pos = this.string.length;}, + skipTo: function(ch) { + var found = this.string.indexOf(ch, this.pos); + if (found > -1) {this.pos = found; return true;} + }, + backUp: function(n) {this.pos -= n;}, + column: function() { + if (this.lastColumnPos < this.start) { + this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue); + this.lastColumnPos = this.start; + } + return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0); + }, + indentation: function() { + return countColumn(this.string, null, this.tabSize) - + (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0); + }, + match: function(pattern, consume, caseInsensitive) { + if (typeof pattern == "string") { + var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;}; + var substr = this.string.substr(this.pos, pattern.length); + if (cased(substr) == cased(pattern)) { + if (consume !== false) this.pos += pattern.length; + return true; + } + } else { + var match = this.string.slice(this.pos).match(pattern); + if (match && match.index > 0) return null; + if (match && consume !== false) this.pos += match[0].length; + return match; + } + }, + current: function(){return this.string.slice(this.start, this.pos);}, + hideFirstChars: function(n, inner) { + this.lineStart += n; + try { return inner(); } + finally { this.lineStart -= n; } + } + }; + + // TEXTMARKERS + + // Created with markText and setBookmark methods. A TextMarker is a + // handle that can be used to clear or find a marked position in the + // document. Line objects hold arrays (markedSpans) containing + // {from, to, marker} object pointing to such marker objects, and + // indicating that such a marker is present on that line. Multiple + // lines may point to the same marker when it spans across lines. + // The spans will have null for their from/to properties when the + // marker continues beyond the start/end of the line. Markers have + // links back to the lines they currently touch. + + var TextMarker = CodeMirror.TextMarker = function(doc, type) { + this.lines = []; + this.type = type; + this.doc = doc; + }; + eventMixin(TextMarker); + + // Clear the marker. + TextMarker.prototype.clear = function() { + if (this.explicitlyCleared) return; + var cm = this.doc.cm, withOp = cm && !cm.curOp; + if (withOp) startOperation(cm); + if (hasHandler(this, "clear")) { + var found = this.find(); + if (found) signalLater(this, "clear", found.from, found.to); + } + var min = null, max = null; + for (var i = 0; i < this.lines.length; ++i) { + var line = this.lines[i]; + var span = getMarkedSpanFor(line.markedSpans, this); + if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text"); + else if (cm) { + if (span.to != null) max = lineNo(line); + if (span.from != null) min = lineNo(line); + } + line.markedSpans = removeMarkedSpan(line.markedSpans, span); + if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm) + updateLineHeight(line, textHeight(cm.display)); + } + if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) { + var visual = visualLine(this.lines[i]), len = lineLength(visual); + if (len > cm.display.maxLineLength) { + cm.display.maxLine = visual; + cm.display.maxLineLength = len; + cm.display.maxLineChanged = true; + } + } + + if (min != null && cm && this.collapsed) regChange(cm, min, max + 1); + this.lines.length = 0; + this.explicitlyCleared = true; + if (this.atomic && this.doc.cantEdit) { + this.doc.cantEdit = false; + if (cm) reCheckSelection(cm.doc); + } + if (cm) signalLater(cm, "markerCleared", cm, this); + if (withOp) endOperation(cm); + if (this.parent) this.parent.clear(); + }; + + // Find the position of the marker in the document. Returns a {from, + // to} object by default. Side can be passed to get a specific side + // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the + // Pos objects returned contain a line object, rather than a line + // number (used to prevent looking up the same line twice). + TextMarker.prototype.find = function(side, lineObj) { + if (side == null && this.type == "bookmark") side = 1; + var from, to; + for (var i = 0; i < this.lines.length; ++i) { + var line = this.lines[i]; + var span = getMarkedSpanFor(line.markedSpans, this); + if (span.from != null) { + from = Pos(lineObj ? line : lineNo(line), span.from); + if (side == -1) return from; + } + if (span.to != null) { + to = Pos(lineObj ? line : lineNo(line), span.to); + if (side == 1) return to; + } + } + return from && {from: from, to: to}; + }; + + // Signals that the marker's widget changed, and surrounding layout + // should be recomputed. + TextMarker.prototype.changed = function() { + var pos = this.find(-1, true), widget = this, cm = this.doc.cm; + if (!pos || !cm) return; + runInOp(cm, function() { + var line = pos.line, lineN = lineNo(pos.line); + var view = findViewForLine(cm, lineN); + if (view) { + clearLineMeasurementCacheFor(view); + cm.curOp.selectionChanged = cm.curOp.forceUpdate = true; + } + cm.curOp.updateMaxLine = true; + if (!lineIsHidden(widget.doc, line) && widget.height != null) { + var oldHeight = widget.height; + widget.height = null; + var dHeight = widgetHeight(widget) - oldHeight; + if (dHeight) + updateLineHeight(line, line.height + dHeight); + } + }); + }; + + TextMarker.prototype.attachLine = function(line) { + if (!this.lines.length && this.doc.cm) { + var op = this.doc.cm.curOp; + if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1) + (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); + } + this.lines.push(line); + }; + TextMarker.prototype.detachLine = function(line) { + this.lines.splice(indexOf(this.lines, line), 1); + if (!this.lines.length && this.doc.cm) { + var op = this.doc.cm.curOp; + (op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this); + } + }; + + // Collapsed markers have unique ids, in order to be able to order + // them, which is needed for uniquely determining an outer marker + // when they overlap (they may nest, but not partially overlap). + var nextMarkerId = 0; + + // Create a marker, wire it up to the right lines, and + function markText(doc, from, to, options, type) { + // Shared markers (across linked documents) are handled separately + // (markTextShared will call out to this again, once per + // document). + if (options && options.shared) return markTextShared(doc, from, to, options, type); + // Ensure we are in an operation. + if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type); + + var marker = new TextMarker(doc, type), diff = cmp(from, to); + if (options) copyObj(options, marker, false); + // Don't connect empty markers unless clearWhenEmpty is false + if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false) + return marker; + if (marker.replacedWith) { + // Showing up as a widget implies collapsed (widget replaces text) + marker.collapsed = true; + marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget"); + if (!options.handleMouseEvents) marker.widgetNode.ignoreEvents = true; + if (options.insertLeft) marker.widgetNode.insertLeft = true; + } + if (marker.collapsed) { + if (conflictingCollapsedRange(doc, from.line, from, to, marker) || + from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker)) + throw new Error("Inserting collapsed marker partially overlapping an existing one"); + sawCollapsedSpans = true; + } + + if (marker.addToHistory) + addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); + + var curLine = from.line, cm = doc.cm, updateMaxLine; + doc.iter(curLine, to.line + 1, function(line) { + if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine) + updateMaxLine = true; + if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0); + addMarkedSpan(line, new MarkedSpan(marker, + curLine == from.line ? from.ch : null, + curLine == to.line ? to.ch : null)); + ++curLine; + }); + // lineIsHidden depends on the presence of the spans, so needs a second pass + if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) { + if (lineIsHidden(doc, line)) updateLineHeight(line, 0); + }); + + if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function() { marker.clear(); }); + + if (marker.readOnly) { + sawReadOnlySpans = true; + if (doc.history.done.length || doc.history.undone.length) + doc.clearHistory(); + } + if (marker.collapsed) { + marker.id = ++nextMarkerId; + marker.atomic = true; + } + if (cm) { + // Sync editor state + if (updateMaxLine) cm.curOp.updateMaxLine = true; + if (marker.collapsed) + regChange(cm, from.line, to.line + 1); + else if (marker.className || marker.title || marker.startStyle || marker.endStyle) + for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, "text"); + if (marker.atomic) reCheckSelection(cm.doc); + signalLater(cm, "markerAdded", cm, marker); + } + return marker; + } + + // SHARED TEXTMARKERS + + // A shared marker spans multiple linked documents. It is + // implemented as a meta-marker-object controlling multiple normal + // markers. + var SharedTextMarker = CodeMirror.SharedTextMarker = function(markers, primary) { + this.markers = markers; + this.primary = primary; + for (var i = 0; i < markers.length; ++i) + markers[i].parent = this; + }; + eventMixin(SharedTextMarker); + + SharedTextMarker.prototype.clear = function() { + if (this.explicitlyCleared) return; + this.explicitlyCleared = true; + for (var i = 0; i < this.markers.length; ++i) + this.markers[i].clear(); + signalLater(this, "clear"); + }; + SharedTextMarker.prototype.find = function(side, lineObj) { + return this.primary.find(side, lineObj); + }; + + function markTextShared(doc, from, to, options, type) { + options = copyObj(options); + options.shared = false; + var markers = [markText(doc, from, to, options, type)], primary = markers[0]; + var widget = options.widgetNode; + linkedDocs(doc, function(doc) { + if (widget) options.widgetNode = widget.cloneNode(true); + markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type)); + for (var i = 0; i < doc.linked.length; ++i) + if (doc.linked[i].isParent) return; + primary = lst(markers); + }); + return new SharedTextMarker(markers, primary); + } + + function findSharedMarkers(doc) { + return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), + function(m) { return m.parent; }); + } + + function copySharedMarkers(doc, markers) { + for (var i = 0; i < markers.length; i++) { + var marker = markers[i], pos = marker.find(); + var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to); + if (cmp(mFrom, mTo)) { + var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type); + marker.markers.push(subMark); + subMark.parent = marker; + } + } + } + + function detachSharedMarkers(markers) { + for (var i = 0; i < markers.length; i++) { + var marker = markers[i], linked = [marker.primary.doc];; + linkedDocs(marker.primary.doc, function(d) { linked.push(d); }); + for (var j = 0; j < marker.markers.length; j++) { + var subMarker = marker.markers[j]; + if (indexOf(linked, subMarker.doc) == -1) { + subMarker.parent = null; + marker.markers.splice(j--, 1); + } + } + } + } + + // TEXTMARKER SPANS + + function MarkedSpan(marker, from, to) { + this.marker = marker; + this.from = from; this.to = to; + } + + // Search an array of spans for a span matching the given marker. + function getMarkedSpanFor(spans, marker) { + if (spans) for (var i = 0; i < spans.length; ++i) { + var span = spans[i]; + if (span.marker == marker) return span; + } + } + // Remove a span from an array, returning undefined if no spans are + // left (we don't store arrays for lines without spans). + function removeMarkedSpan(spans, span) { + for (var r, i = 0; i < spans.length; ++i) + if (spans[i] != span) (r || (r = [])).push(spans[i]); + return r; + } + // Add a span to a line. + function addMarkedSpan(line, span) { + line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]; + span.marker.attachLine(line); + } + + // Used for the algorithm that adjusts markers for a change in the + // document. These functions cut an array of spans at a given + // character position, returning an array of remaining chunks (or + // undefined if nothing remains). + function markedSpansBefore(old, startCh, isInsert) { + if (old) for (var i = 0, nw; i < old.length; ++i) { + var span = old[i], marker = span.marker; + var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh); + if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) { + var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh); + (nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to)); + } + } + return nw; + } + function markedSpansAfter(old, endCh, isInsert) { + if (old) for (var i = 0, nw; i < old.length; ++i) { + var span = old[i], marker = span.marker; + var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh); + if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) { + var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh); + (nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh, + span.to == null ? null : span.to - endCh)); + } + } + return nw; + } + + // Given a change object, compute the new set of marker spans that + // cover the line in which the change took place. Removes spans + // entirely within the change, reconnects spans belonging to the + // same marker that appear on both sides of the change, and cuts off + // spans partially within the change. Returns an array of span + // arrays with one element for each line in (after) the change. + function stretchSpansOverChange(doc, change) { + var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans; + var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans; + if (!oldFirst && !oldLast) return null; + + var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0; + // Get the spans that 'stick out' on both sides + var first = markedSpansBefore(oldFirst, startCh, isInsert); + var last = markedSpansAfter(oldLast, endCh, isInsert); + + // Next, merge those two ends + var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0); + if (first) { + // Fix up .to properties of first + for (var i = 0; i < first.length; ++i) { + var span = first[i]; + if (span.to == null) { + var found = getMarkedSpanFor(last, span.marker); + if (!found) span.to = startCh; + else if (sameLine) span.to = found.to == null ? null : found.to + offset; + } + } + } + if (last) { + // Fix up .from in last (or move them into first in case of sameLine) + for (var i = 0; i < last.length; ++i) { + var span = last[i]; + if (span.to != null) span.to += offset; + if (span.from == null) { + var found = getMarkedSpanFor(first, span.marker); + if (!found) { + span.from = offset; + if (sameLine) (first || (first = [])).push(span); + } + } else { + span.from += offset; + if (sameLine) (first || (first = [])).push(span); + } + } + } + // Make sure we didn't create any zero-length spans + if (first) first = clearEmptySpans(first); + if (last && last != first) last = clearEmptySpans(last); + + var newMarkers = [first]; + if (!sameLine) { + // Fill gap with whole-line-spans + var gap = change.text.length - 2, gapMarkers; + if (gap > 0 && first) + for (var i = 0; i < first.length; ++i) + if (first[i].to == null) + (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null)); + for (var i = 0; i < gap; ++i) + newMarkers.push(gapMarkers); + newMarkers.push(last); + } + return newMarkers; + } + + // Remove spans that are empty and don't have a clearWhenEmpty + // option of false. + function clearEmptySpans(spans) { + for (var i = 0; i < spans.length; ++i) { + var span = spans[i]; + if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false) + spans.splice(i--, 1); + } + if (!spans.length) return null; + return spans; + } + + // Used for un/re-doing changes from the history. Combines the + // result of computing the existing spans with the set of spans that + // existed in the history (so that deleting around a span and then + // undoing brings back the span). + function mergeOldSpans(doc, change) { + var old = getOldSpans(doc, change); + var stretched = stretchSpansOverChange(doc, change); + if (!old) return stretched; + if (!stretched) return old; + + for (var i = 0; i < old.length; ++i) { + var oldCur = old[i], stretchCur = stretched[i]; + if (oldCur && stretchCur) { + spans: for (var j = 0; j < stretchCur.length; ++j) { + var span = stretchCur[j]; + for (var k = 0; k < oldCur.length; ++k) + if (oldCur[k].marker == span.marker) continue spans; + oldCur.push(span); + } + } else if (stretchCur) { + old[i] = stretchCur; + } + } + return old; + } + + // Used to 'clip' out readOnly ranges when making a change. + function removeReadOnlyRanges(doc, from, to) { + var markers = null; + doc.iter(from.line, to.line + 1, function(line) { + if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) { + var mark = line.markedSpans[i].marker; + if (mark.readOnly && (!markers || indexOf(markers, mark) == -1)) + (markers || (markers = [])).push(mark); + } + }); + if (!markers) return null; + var parts = [{from: from, to: to}]; + for (var i = 0; i < markers.length; ++i) { + var mk = markers[i], m = mk.find(0); + for (var j = 0; j < parts.length; ++j) { + var p = parts[j]; + if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue; + var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to); + if (dfrom < 0 || !mk.inclusiveLeft && !dfrom) + newParts.push({from: p.from, to: m.from}); + if (dto > 0 || !mk.inclusiveRight && !dto) + newParts.push({from: m.to, to: p.to}); + parts.splice.apply(parts, newParts); + j += newParts.length - 1; + } + } + return parts; + } + + // Connect or disconnect spans from a line. + function detachMarkedSpans(line) { + var spans = line.markedSpans; + if (!spans) return; + for (var i = 0; i < spans.length; ++i) + spans[i].marker.detachLine(line); + line.markedSpans = null; + } + function attachMarkedSpans(line, spans) { + if (!spans) return; + for (var i = 0; i < spans.length; ++i) + spans[i].marker.attachLine(line); + line.markedSpans = spans; + } + + // Helpers used when computing which overlapping collapsed span + // counts as the larger one. + function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0; } + function extraRight(marker) { return marker.inclusiveRight ? 1 : 0; } + + // Returns a number indicating which of two overlapping collapsed + // spans is larger (and thus includes the other). Falls back to + // comparing ids when the spans cover exactly the same range. + function compareCollapsedMarkers(a, b) { + var lenDiff = a.lines.length - b.lines.length; + if (lenDiff != 0) return lenDiff; + var aPos = a.find(), bPos = b.find(); + var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b); + if (fromCmp) return -fromCmp; + var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b); + if (toCmp) return toCmp; + return b.id - a.id; + } + + // Find out whether a line ends or starts in a collapsed span. If + // so, return the marker for that span. + function collapsedSpanAtSide(line, start) { + var sps = sawCollapsedSpans && line.markedSpans, found; + if (sps) for (var sp, i = 0; i < sps.length; ++i) { + sp = sps[i]; + if (sp.marker.collapsed && (start ? sp.from : sp.to) == null && + (!found || compareCollapsedMarkers(found, sp.marker) < 0)) + found = sp.marker; + } + return found; + } + function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true); } + function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false); } + + // Test whether there exists a collapsed span that partially + // overlaps (covers the start or end, but not both) of a new span. + // Such overlap is not allowed. + function conflictingCollapsedRange(doc, lineNo, from, to, marker) { + var line = getLine(doc, lineNo); + var sps = sawCollapsedSpans && line.markedSpans; + if (sps) for (var i = 0; i < sps.length; ++i) { + var sp = sps[i]; + if (!sp.marker.collapsed) continue; + var found = sp.marker.find(0); + var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker); + var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker); + if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue; + if (fromCmp <= 0 && (cmp(found.to, from) || extraRight(sp.marker) - extraLeft(marker)) > 0 || + fromCmp >= 0 && (cmp(found.from, to) || extraLeft(sp.marker) - extraRight(marker)) < 0) + return true; + } + } + + // A visual line is a line as drawn on the screen. Folding, for + // example, can cause multiple logical lines to appear on the same + // visual line. This finds the start of the visual line that the + // given line is part of (usually that is the line itself). + function visualLine(line) { + var merged; + while (merged = collapsedSpanAtStart(line)) + line = merged.find(-1, true).line; + return line; + } + + // Returns an array of logical lines that continue the visual line + // started by the argument, or undefined if there are no such lines. + function visualLineContinued(line) { + var merged, lines; + while (merged = collapsedSpanAtEnd(line)) { + line = merged.find(1, true).line; + (lines || (lines = [])).push(line); + } + return lines; + } + + // Get the line number of the start of the visual line that the + // given line number is part of. + function visualLineNo(doc, lineN) { + var line = getLine(doc, lineN), vis = visualLine(line); + if (line == vis) return lineN; + return lineNo(vis); + } + // Get the line number of the start of the next visual line after + // the given line. + function visualLineEndNo(doc, lineN) { + if (lineN > doc.lastLine()) return lineN; + var line = getLine(doc, lineN), merged; + if (!lineIsHidden(doc, line)) return lineN; + while (merged = collapsedSpanAtEnd(line)) + line = merged.find(1, true).line; + return lineNo(line) + 1; + } + + // Compute whether a line is hidden. Lines count as hidden when they + // are part of a visual line that starts with another line, or when + // they are entirely covered by collapsed, non-widget span. + function lineIsHidden(doc, line) { + var sps = sawCollapsedSpans && line.markedSpans; + if (sps) for (var sp, i = 0; i < sps.length; ++i) { + sp = sps[i]; + if (!sp.marker.collapsed) continue; + if (sp.from == null) return true; + if (sp.marker.widgetNode) continue; + if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp)) + return true; + } + } + function lineIsHiddenInner(doc, line, span) { + if (span.to == null) { + var end = span.marker.find(1, true); + return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker)); + } + if (span.marker.inclusiveRight && span.to == line.text.length) + return true; + for (var sp, i = 0; i < line.markedSpans.length; ++i) { + sp = line.markedSpans[i]; + if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to && + (sp.to == null || sp.to != span.from) && + (sp.marker.inclusiveLeft || span.marker.inclusiveRight) && + lineIsHiddenInner(doc, line, sp)) return true; + } + } + + // LINE WIDGETS + + // Line widgets are block elements displayed above or below a line. + + var LineWidget = CodeMirror.LineWidget = function(cm, node, options) { + if (options) for (var opt in options) if (options.hasOwnProperty(opt)) + this[opt] = options[opt]; + this.cm = cm; + this.node = node; + }; + eventMixin(LineWidget); + + function adjustScrollWhenAboveVisible(cm, line, diff) { + if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop)) + addToScrollPos(cm, null, diff); + } + + LineWidget.prototype.clear = function() { + var cm = this.cm, ws = this.line.widgets, line = this.line, no = lineNo(line); + if (no == null || !ws) return; + for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1); + if (!ws.length) line.widgets = null; + var height = widgetHeight(this); + runInOp(cm, function() { + adjustScrollWhenAboveVisible(cm, line, -height); + regLineChange(cm, no, "widget"); + updateLineHeight(line, Math.max(0, line.height - height)); + }); + }; + LineWidget.prototype.changed = function() { + var oldH = this.height, cm = this.cm, line = this.line; + this.height = null; + var diff = widgetHeight(this) - oldH; + if (!diff) return; + runInOp(cm, function() { + cm.curOp.forceUpdate = true; + adjustScrollWhenAboveVisible(cm, line, diff); + updateLineHeight(line, line.height + diff); + }); + }; + + function widgetHeight(widget) { + if (widget.height != null) return widget.height; + if (!contains(document.body, widget.node)) + removeChildrenAndAdd(widget.cm.display.measure, elt("div", [widget.node], null, "position: relative")); + return widget.height = widget.node.offsetHeight; + } + + function addLineWidget(cm, handle, node, options) { + var widget = new LineWidget(cm, node, options); + if (widget.noHScroll) cm.display.alignWidgets = true; + changeLine(cm, handle, "widget", function(line) { + var widgets = line.widgets || (line.widgets = []); + if (widget.insertAt == null) widgets.push(widget); + else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); + widget.line = line; + if (!lineIsHidden(cm.doc, line)) { + var aboveVisible = heightAtLine(line) < cm.doc.scrollTop; + updateLineHeight(line, line.height + widgetHeight(widget)); + if (aboveVisible) addToScrollPos(cm, null, widget.height); + cm.curOp.forceUpdate = true; + } + return true; + }); + return widget; + } + + // LINE DATA STRUCTURE + + // Line objects. These hold state related to a line, including + // highlighting info (the styles array). + var Line = CodeMirror.Line = function(text, markedSpans, estimateHeight) { + this.text = text; + attachMarkedSpans(this, markedSpans); + this.height = estimateHeight ? estimateHeight(this) : 1; + }; + eventMixin(Line); + Line.prototype.lineNo = function() { return lineNo(this); }; + + // Change the content (text, markers) of a line. Automatically + // invalidates cached information and tries to re-estimate the + // line's height. + function updateLine(line, text, markedSpans, estimateHeight) { + line.text = text; + if (line.stateAfter) line.stateAfter = null; + if (line.styles) line.styles = null; + if (line.order != null) line.order = null; + detachMarkedSpans(line); + attachMarkedSpans(line, markedSpans); + var estHeight = estimateHeight ? estimateHeight(line) : 1; + if (estHeight != line.height) updateLineHeight(line, estHeight); + } + + // Detach a line from the document tree and its markers. + function cleanUpLine(line) { + line.parent = null; + detachMarkedSpans(line); + } + + function extractLineClasses(type, output) { + if (type) for (;;) { + var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/); + if (!lineClass) break; + type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length); + var prop = lineClass[1] ? "bgClass" : "textClass"; + if (output[prop] == null) + output[prop] = lineClass[2]; + else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop])) + output[prop] += " " + lineClass[2]; + } + return type; + } + + function callBlankLine(mode, state) { + if (mode.blankLine) return mode.blankLine(state); + if (!mode.innerMode) return; + var inner = CodeMirror.innerMode(mode, state); + if (inner.mode.blankLine) return inner.mode.blankLine(inner.state); + } + + function readToken(mode, stream, state) { + var style = mode.token(stream, state); + if (stream.pos <= stream.start) + throw new Error("Mode " + mode.name + " failed to advance stream."); + return style; + } + + // Run the given mode's parser over a line, calling f for each token. + function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) { + var flattenSpans = mode.flattenSpans; + if (flattenSpans == null) flattenSpans = cm.options.flattenSpans; + var curStart = 0, curStyle = null; + var stream = new StringStream(text, cm.options.tabSize), style; + if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses); + while (!stream.eol()) { + if (stream.pos > cm.options.maxHighlightLength) { + flattenSpans = false; + if (forceToEnd) processLine(cm, text, state, stream.pos); + stream.pos = text.length; + style = null; + } else { + style = extractLineClasses(readToken(mode, stream, state), lineClasses); + } + if (cm.options.addModeClass) { + var mName = CodeMirror.innerMode(mode, state).mode.name; + if (mName) style = "m-" + (style ? mName + " " + style : mName); + } + if (!flattenSpans || curStyle != style) { + if (curStart < stream.start) f(stream.start, curStyle); + curStart = stream.start; curStyle = style; + } + stream.start = stream.pos; + } + while (curStart < stream.pos) { + // Webkit seems to refuse to render text nodes longer than 57444 characters + var pos = Math.min(stream.pos, curStart + 50000); + f(pos, curStyle); + curStart = pos; + } + } + + // Compute a style array (an array starting with a mode generation + // -- for invalidation -- followed by pairs of end positions and + // style strings), which is used to highlight the tokens on the + // line. + function highlightLine(cm, line, state, forceToEnd) { + // A styles array always starts with a number identifying the + // mode/overlays that it is based on (for easy invalidation). + var st = [cm.state.modeGen], lineClasses = {}; + // Compute the base array of styles + runMode(cm, line.text, cm.doc.mode, state, function(end, style) { + st.push(end, style); + }, lineClasses, forceToEnd); + + // Run overlays, adjust style array. + for (var o = 0; o < cm.state.overlays.length; ++o) { + var overlay = cm.state.overlays[o], i = 1, at = 0; + runMode(cm, line.text, overlay.mode, true, function(end, style) { + var start = i; + // Ensure there's a token end at the current position, and that i points at it + while (at < end) { + var i_end = st[i]; + if (i_end > end) + st.splice(i, 1, end, st[i+1], i_end); + i += 2; + at = Math.min(end, i_end); + } + if (!style) return; + if (overlay.opaque) { + st.splice(start, i - start, end, "cm-overlay " + style); + i = start + 2; + } else { + for (; start < i; start += 2) { + var cur = st[start+1]; + st[start+1] = (cur ? cur + " " : "") + "cm-overlay " + style; + } + } + }, lineClasses); + } + + return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}; + } + + function getLineStyles(cm, line) { + if (!line.styles || line.styles[0] != cm.state.modeGen) { + var result = highlightLine(cm, line, line.stateAfter = getStateBefore(cm, lineNo(line))); + line.styles = result.styles; + if (result.classes) line.styleClasses = result.classes; + else if (line.styleClasses) line.styleClasses = null; + } + return line.styles; + } + + // Lightweight form of highlight -- proceed over this line and + // update state, but don't save a style array. Used for lines that + // aren't currently visible. + function processLine(cm, text, state, startAt) { + var mode = cm.doc.mode; + var stream = new StringStream(text, cm.options.tabSize); + stream.start = stream.pos = startAt || 0; + if (text == "") callBlankLine(mode, state); + while (!stream.eol() && stream.pos <= cm.options.maxHighlightLength) { + readToken(mode, stream, state); + stream.start = stream.pos; + } + } + + // Convert a style as returned by a mode (either null, or a string + // containing one or more styles) to a CSS style. This is cached, + // and also looks for line-wide styles. + var styleToClassCache = {}, styleToClassCacheWithMode = {}; + function interpretTokenStyle(style, options) { + if (!style || /^\s*$/.test(style)) return null; + var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache; + return cache[style] || + (cache[style] = style.replace(/\S+/g, "cm-$&")); + } + + // Render the DOM representation of the text of a line. Also builds + // up a 'line map', which points at the DOM nodes that represent + // specific stretches of text, and is used by the measuring code. + // The returned object contains the DOM node, this map, and + // information about line-wide styles that were set by the mode. + function buildLineContent(cm, lineView) { + // The padding-right forces the element to have a 'border', which + // is needed on Webkit to be able to get line-level bounding + // rectangles for it (in measureChar). + var content = elt("span", null, null, webkit ? "padding-right: .1px" : null); + var builder = {pre: elt("pre", [content]), content: content, col: 0, pos: 0, cm: cm}; + lineView.measure = {}; + + // Iterate over the logical lines that make up this visual line. + for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) { + var line = i ? lineView.rest[i - 1] : lineView.line, order; + builder.pos = 0; + builder.addToken = buildToken; + // Optionally wire in some hacks into the token-rendering + // algorithm, to deal with browser quirks. + if ((ie || webkit) && cm.getOption("lineWrapping")) + builder.addToken = buildTokenSplitSpaces(builder.addToken); + if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line))) + builder.addToken = buildTokenBadBidi(builder.addToken, order); + builder.map = []; + insertLineContent(line, builder, getLineStyles(cm, line)); + if (line.styleClasses) { + if (line.styleClasses.bgClass) + builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); + if (line.styleClasses.textClass) + builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); + } + + // Ensure at least a single node is present, for measuring. + if (builder.map.length == 0) + builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); + + // Store the map and a cache object for the current logical line + if (i == 0) { + lineView.measure.map = builder.map; + lineView.measure.cache = {}; + } else { + (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map); + (lineView.measure.caches || (lineView.measure.caches = [])).push({}); + } + } + + signal(cm, "renderLine", cm, lineView.line, builder.pre); + return builder; + } + + function defaultSpecialCharPlaceholder(ch) { + var token = elt("span", "\u2022", "cm-invalidchar"); + token.title = "\\u" + ch.charCodeAt(0).toString(16); + return token; + } + + // Build up the DOM representation for a single token, and add it to + // the line map. Takes care to render special characters separately. + function buildToken(builder, text, style, startStyle, endStyle, title) { + if (!text) return; + var special = builder.cm.options.specialChars, mustWrap = false; + if (!special.test(text)) { + builder.col += text.length; + var content = document.createTextNode(text); + builder.map.push(builder.pos, builder.pos + text.length, content); + if (ie_upto8) mustWrap = true; + builder.pos += text.length; + } else { + var content = document.createDocumentFragment(), pos = 0; + while (true) { + special.lastIndex = pos; + var m = special.exec(text); + var skipped = m ? m.index - pos : text.length - pos; + if (skipped) { + var txt = document.createTextNode(text.slice(pos, pos + skipped)); + if (ie_upto8) content.appendChild(elt("span", [txt])); + else content.appendChild(txt); + builder.map.push(builder.pos, builder.pos + skipped, txt); + builder.col += skipped; + builder.pos += skipped; + } + if (!m) break; + pos += skipped + 1; + if (m[0] == "\t") { + var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize; + var txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")); + builder.col += tabWidth; + } else { + var txt = builder.cm.options.specialCharPlaceholder(m[0]); + if (ie_upto8) content.appendChild(elt("span", [txt])); + else content.appendChild(txt); + builder.col += 1; + } + builder.map.push(builder.pos, builder.pos + 1, txt); + builder.pos++; + } + } + if (style || startStyle || endStyle || mustWrap) { + var fullStyle = style || ""; + if (startStyle) fullStyle += startStyle; + if (endStyle) fullStyle += endStyle; + var token = elt("span", [content], fullStyle); + if (title) token.title = title; + return builder.content.appendChild(token); + } + builder.content.appendChild(content); + } + + function buildTokenSplitSpaces(inner) { + function split(old) { + var out = " "; + for (var i = 0; i < old.length - 2; ++i) out += i % 2 ? " " : "\u00a0"; + out += " "; + return out; + } + return function(builder, text, style, startStyle, endStyle, title) { + inner(builder, text.replace(/ {3,}/g, split), style, startStyle, endStyle, title); + }; + } + + // Work around nonsense dimensions being reported for stretches of + // right-to-left text. + function buildTokenBadBidi(inner, order) { + return function(builder, text, style, startStyle, endStyle, title) { + style = style ? style + " cm-force-border" : "cm-force-border"; + var start = builder.pos, end = start + text.length; + for (;;) { + // Find the part that overlaps with the start of this text + for (var i = 0; i < order.length; i++) { + var part = order[i]; + if (part.to > start && part.from <= start) break; + } + if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title); + inner(builder, text.slice(0, part.to - start), style, startStyle, null, title); + startStyle = null; + text = text.slice(part.to - start); + start = part.to; + } + }; + } + + function buildCollapsedSpan(builder, size, marker, ignoreWidget) { + var widget = !ignoreWidget && marker.widgetNode; + if (widget) { + builder.map.push(builder.pos, builder.pos + size, widget); + builder.content.appendChild(widget); + } + builder.pos += size; + } + + // Outputs a number of spans to make up a line, taking highlighting + // and marked text into account. + function insertLineContent(line, builder, styles) { + var spans = line.markedSpans, allText = line.text, at = 0; + if (!spans) { + for (var i = 1; i < styles.length; i+=2) + builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder.cm.options)); + return; + } + + var len = allText.length, pos = 0, i = 1, text = "", style; + var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed; + for (;;) { + if (nextChange == pos) { // Update current marker set + spanStyle = spanEndStyle = spanStartStyle = title = ""; + collapsed = null; nextChange = Infinity; + var foundBookmarks = []; + for (var j = 0; j < spans.length; ++j) { + var sp = spans[j], m = sp.marker; + if (sp.from <= pos && (sp.to == null || sp.to > pos)) { + if (sp.to != null && nextChange > sp.to) { nextChange = sp.to; spanEndStyle = ""; } + if (m.className) spanStyle += " " + m.className; + if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle; + if (m.endStyle && sp.to == nextChange) spanEndStyle += " " + m.endStyle; + if (m.title && !title) title = m.title; + if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0)) + collapsed = sp; + } else if (sp.from > pos && nextChange > sp.from) { + nextChange = sp.from; + } + if (m.type == "bookmark" && sp.from == pos && m.widgetNode) foundBookmarks.push(m); + } + if (collapsed && (collapsed.from || 0) == pos) { + buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos, + collapsed.marker, collapsed.from == null); + if (collapsed.to == null) return; + } + if (!collapsed && foundBookmarks.length) for (var j = 0; j < foundBookmarks.length; ++j) + buildCollapsedSpan(builder, 0, foundBookmarks[j]); + } + if (pos >= len) break; + + var upto = Math.min(len, nextChange); + while (true) { + if (text) { + var end = pos + text.length; + if (!collapsed) { + var tokenText = end > upto ? text.slice(0, upto - pos) : text; + builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle, + spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title); + } + if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;} + pos = end; + spanStartStyle = ""; + } + text = allText.slice(at, at = styles[i++]); + style = interpretTokenStyle(styles[i++], builder.cm.options); + } + } + } + + // DOCUMENT DATA STRUCTURE + + // By default, updates that start and end at the beginning of a line + // are treated specially, in order to make the association of line + // widgets and marker elements with the text behave more intuitive. + function isWholeLineUpdate(doc, change) { + return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" && + (!doc.cm || doc.cm.options.wholeLineUpdateBefore); + } + + // Perform a change on the document data structure. + function updateDoc(doc, change, markedSpans, estimateHeight) { + function spansFor(n) {return markedSpans ? markedSpans[n] : null;} + function update(line, text, spans) { + updateLine(line, text, spans, estimateHeight); + signalLater(line, "change", line, change); + } + + var from = change.from, to = change.to, text = change.text; + var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line); + var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line; + + // Adjust the line structure + if (isWholeLineUpdate(doc, change)) { + // This is a whole-line replace. Treated specially to make + // sure line objects move the way they are supposed to. + for (var i = 0, added = []; i < text.length - 1; ++i) + added.push(new Line(text[i], spansFor(i), estimateHeight)); + update(lastLine, lastLine.text, lastSpans); + if (nlines) doc.remove(from.line, nlines); + if (added.length) doc.insert(from.line, added); + } else if (firstLine == lastLine) { + if (text.length == 1) { + update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans); + } else { + for (var added = [], i = 1; i < text.length - 1; ++i) + added.push(new Line(text[i], spansFor(i), estimateHeight)); + added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight)); + update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); + doc.insert(from.line + 1, added); + } + } else if (text.length == 1) { + update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0)); + doc.remove(from.line + 1, nlines); + } else { + update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); + update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans); + for (var i = 1, added = []; i < text.length - 1; ++i) + added.push(new Line(text[i], spansFor(i), estimateHeight)); + if (nlines > 1) doc.remove(from.line + 1, nlines - 1); + doc.insert(from.line + 1, added); + } + + signalLater(doc, "change", doc, change); + } + + // The document is represented as a BTree consisting of leaves, with + // chunk of lines in them, and branches, with up to ten leaves or + // other branch nodes below them. The top node is always a branch + // node, and is the document object itself (meaning it has + // additional methods and properties). + // + // All nodes have parent links. The tree is used both to go from + // line numbers to line objects, and to go from objects to numbers. + // It also indexes by height, and is used to convert between height + // and line object, and to find the total height of the document. + // + // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html + + function LeafChunk(lines) { + this.lines = lines; + this.parent = null; + for (var i = 0, height = 0; i < lines.length; ++i) { + lines[i].parent = this; + height += lines[i].height; + } + this.height = height; + } + + LeafChunk.prototype = { + chunkSize: function() { return this.lines.length; }, + // Remove the n lines at offset 'at'. + removeInner: function(at, n) { + for (var i = at, e = at + n; i < e; ++i) { + var line = this.lines[i]; + this.height -= line.height; + cleanUpLine(line); + signalLater(line, "delete"); + } + this.lines.splice(at, n); + }, + // Helper used to collapse a small branch into a single leaf. + collapse: function(lines) { + lines.push.apply(lines, this.lines); + }, + // Insert the given array of lines at offset 'at', count them as + // having the given height. + insertInner: function(at, lines, height) { + this.height += height; + this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at)); + for (var i = 0; i < lines.length; ++i) lines[i].parent = this; + }, + // Used to iterate over a part of the tree. + iterN: function(at, n, op) { + for (var e = at + n; at < e; ++at) + if (op(this.lines[at])) return true; + } + }; + + function BranchChunk(children) { + this.children = children; + var size = 0, height = 0; + for (var i = 0; i < children.length; ++i) { + var ch = children[i]; + size += ch.chunkSize(); height += ch.height; + ch.parent = this; + } + this.size = size; + this.height = height; + this.parent = null; + } + + BranchChunk.prototype = { + chunkSize: function() { return this.size; }, + removeInner: function(at, n) { + this.size -= n; + for (var i = 0; i < this.children.length; ++i) { + var child = this.children[i], sz = child.chunkSize(); + if (at < sz) { + var rm = Math.min(n, sz - at), oldHeight = child.height; + child.removeInner(at, rm); + this.height -= oldHeight - child.height; + if (sz == rm) { this.children.splice(i--, 1); child.parent = null; } + if ((n -= rm) == 0) break; + at = 0; + } else at -= sz; + } + // If the result is smaller than 25 lines, ensure that it is a + // single leaf node. + if (this.size - n < 25 && + (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) { + var lines = []; + this.collapse(lines); + this.children = [new LeafChunk(lines)]; + this.children[0].parent = this; + } + }, + collapse: function(lines) { + for (var i = 0; i < this.children.length; ++i) this.children[i].collapse(lines); + }, + insertInner: function(at, lines, height) { + this.size += lines.length; + this.height += height; + for (var i = 0; i < this.children.length; ++i) { + var child = this.children[i], sz = child.chunkSize(); + if (at <= sz) { + child.insertInner(at, lines, height); + if (child.lines && child.lines.length > 50) { + while (child.lines.length > 50) { + var spilled = child.lines.splice(child.lines.length - 25, 25); + var newleaf = new LeafChunk(spilled); + child.height -= newleaf.height; + this.children.splice(i + 1, 0, newleaf); + newleaf.parent = this; + } + this.maybeSpill(); + } + break; + } + at -= sz; + } + }, + // When a node has grown, check whether it should be split. + maybeSpill: function() { + if (this.children.length <= 10) return; + var me = this; + do { + var spilled = me.children.splice(me.children.length - 5, 5); + var sibling = new BranchChunk(spilled); + if (!me.parent) { // Become the parent node + var copy = new BranchChunk(me.children); + copy.parent = me; + me.children = [copy, sibling]; + me = copy; + } else { + me.size -= sibling.size; + me.height -= sibling.height; + var myIndex = indexOf(me.parent.children, me); + me.parent.children.splice(myIndex + 1, 0, sibling); + } + sibling.parent = me.parent; + } while (me.children.length > 10); + me.parent.maybeSpill(); + }, + iterN: function(at, n, op) { + for (var i = 0; i < this.children.length; ++i) { + var child = this.children[i], sz = child.chunkSize(); + if (at < sz) { + var used = Math.min(n, sz - at); + if (child.iterN(at, used, op)) return true; + if ((n -= used) == 0) break; + at = 0; + } else at -= sz; + } + } + }; + + var nextDocId = 0; + var Doc = CodeMirror.Doc = function(text, mode, firstLine) { + if (!(this instanceof Doc)) return new Doc(text, mode, firstLine); + if (firstLine == null) firstLine = 0; + + BranchChunk.call(this, [new LeafChunk([new Line("", null)])]); + this.first = firstLine; + this.scrollTop = this.scrollLeft = 0; + this.cantEdit = false; + this.cleanGeneration = 1; + this.frontier = firstLine; + var start = Pos(firstLine, 0); + this.sel = simpleSelection(start); + this.history = new History(null); + this.id = ++nextDocId; + this.modeOption = mode; + + if (typeof text == "string") text = splitLines(text); + updateDoc(this, {from: start, to: start, text: text}); + setSelection(this, simpleSelection(start), sel_dontScroll); + }; + + Doc.prototype = createObj(BranchChunk.prototype, { + constructor: Doc, + // Iterate over the document. Supports two forms -- with only one + // argument, it calls that for each line in the document. With + // three, it iterates over the range given by the first two (with + // the second being non-inclusive). + iter: function(from, to, op) { + if (op) this.iterN(from - this.first, to - from, op); + else this.iterN(this.first, this.first + this.size, from); + }, + + // Non-public interface for adding and removing lines. + insert: function(at, lines) { + var height = 0; + for (var i = 0; i < lines.length; ++i) height += lines[i].height; + this.insertInner(at - this.first, lines, height); + }, + remove: function(at, n) { this.removeInner(at - this.first, n); }, + + // From here, the methods are part of the public interface. Most + // are also available from CodeMirror (editor) instances. + + getValue: function(lineSep) { + var lines = getLines(this, this.first, this.first + this.size); + if (lineSep === false) return lines; + return lines.join(lineSep || "\n"); + }, + setValue: docMethodOp(function(code) { + var top = Pos(this.first, 0), last = this.first + this.size - 1; + makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length), + text: splitLines(code), origin: "setValue"}, true); + setSelection(this, simpleSelection(top)); + }), + replaceRange: function(code, from, to, origin) { + from = clipPos(this, from); + to = to ? clipPos(this, to) : from; + replaceRange(this, code, from, to, origin); + }, + getRange: function(from, to, lineSep) { + var lines = getBetween(this, clipPos(this, from), clipPos(this, to)); + if (lineSep === false) return lines; + return lines.join(lineSep || "\n"); + }, + + getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;}, + + getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);}, + getLineNumber: function(line) {return lineNo(line);}, + + getLineHandleVisualStart: function(line) { + if (typeof line == "number") line = getLine(this, line); + return visualLine(line); + }, + + lineCount: function() {return this.size;}, + firstLine: function() {return this.first;}, + lastLine: function() {return this.first + this.size - 1;}, + + clipPos: function(pos) {return clipPos(this, pos);}, + + getCursor: function(start) { + var range = this.sel.primary(), pos; + if (start == null || start == "head") pos = range.head; + else if (start == "anchor") pos = range.anchor; + else if (start == "end" || start == "to" || start === false) pos = range.to(); + else pos = range.from(); + return pos; + }, + listSelections: function() { return this.sel.ranges; }, + somethingSelected: function() {return this.sel.somethingSelected();}, + + setCursor: docMethodOp(function(line, ch, options) { + setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options); + }), + setSelection: docMethodOp(function(anchor, head, options) { + setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options); + }), + extendSelection: docMethodOp(function(head, other, options) { + extendSelection(this, clipPos(this, head), other && clipPos(this, other), options); + }), + extendSelections: docMethodOp(function(heads, options) { + extendSelections(this, clipPosArray(this, heads, options)); + }), + extendSelectionsBy: docMethodOp(function(f, options) { + extendSelections(this, map(this.sel.ranges, f), options); + }), + setSelections: docMethodOp(function(ranges, primary, options) { + if (!ranges.length) return; + for (var i = 0, out = []; i < ranges.length; i++) + out[i] = new Range(clipPos(this, ranges[i].anchor), + clipPos(this, ranges[i].head)); + if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex); + setSelection(this, normalizeSelection(out, primary), options); + }), + addSelection: docMethodOp(function(anchor, head, options) { + var ranges = this.sel.ranges.slice(0); + ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor))); + setSelection(this, normalizeSelection(ranges, ranges.length - 1), options); + }), + + getSelection: function(lineSep) { + var ranges = this.sel.ranges, lines; + for (var i = 0; i < ranges.length; i++) { + var sel = getBetween(this, ranges[i].from(), ranges[i].to()); + lines = lines ? lines.concat(sel) : sel; + } + if (lineSep === false) return lines; + else return lines.join(lineSep || "\n"); + }, + getSelections: function(lineSep) { + var parts = [], ranges = this.sel.ranges; + for (var i = 0; i < ranges.length; i++) { + var sel = getBetween(this, ranges[i].from(), ranges[i].to()); + if (lineSep !== false) sel = sel.join(lineSep || "\n"); + parts[i] = sel; + } + return parts; + }, + replaceSelection: function(code, collapse, origin) { + var dup = []; + for (var i = 0; i < this.sel.ranges.length; i++) + dup[i] = code; + this.replaceSelections(dup, collapse, origin || "+input"); + }, + replaceSelections: docMethodOp(function(code, collapse, origin) { + var changes = [], sel = this.sel; + for (var i = 0; i < sel.ranges.length; i++) { + var range = sel.ranges[i]; + changes[i] = {from: range.from(), to: range.to(), text: splitLines(code[i]), origin: origin}; + } + var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse); + for (var i = changes.length - 1; i >= 0; i--) + makeChange(this, changes[i]); + if (newSel) setSelectionReplaceHistory(this, newSel); + else if (this.cm) ensureCursorVisible(this.cm); + }), + undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}), + redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}), + undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}), + redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}), + + setExtending: function(val) {this.extend = val;}, + getExtending: function() {return this.extend;}, + + historySize: function() { + var hist = this.history, done = 0, undone = 0; + for (var i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done; + for (var i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone; + return {undo: done, redo: undone}; + }, + clearHistory: function() {this.history = new History(this.history.maxGeneration);}, + + markClean: function() { + this.cleanGeneration = this.changeGeneration(true); + }, + changeGeneration: function(forceSplit) { + if (forceSplit) + this.history.lastOp = this.history.lastOrigin = null; + return this.history.generation; + }, + isClean: function (gen) { + return this.history.generation == (gen || this.cleanGeneration); + }, + + getHistory: function() { + return {done: copyHistoryArray(this.history.done), + undone: copyHistoryArray(this.history.undone)}; + }, + setHistory: function(histData) { + var hist = this.history = new History(this.history.maxGeneration); + hist.done = copyHistoryArray(histData.done.slice(0), null, true); + hist.undone = copyHistoryArray(histData.undone.slice(0), null, true); + }, + + markText: function(from, to, options) { + return markText(this, clipPos(this, from), clipPos(this, to), options, "range"); + }, + setBookmark: function(pos, options) { + var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options), + insertLeft: options && options.insertLeft, + clearWhenEmpty: false, shared: options && options.shared}; + pos = clipPos(this, pos); + return markText(this, pos, pos, realOpts, "bookmark"); + }, + findMarksAt: function(pos) { + pos = clipPos(this, pos); + var markers = [], spans = getLine(this, pos.line).markedSpans; + if (spans) for (var i = 0; i < spans.length; ++i) { + var span = spans[i]; + if ((span.from == null || span.from <= pos.ch) && + (span.to == null || span.to >= pos.ch)) + markers.push(span.marker.parent || span.marker); + } + return markers; + }, + findMarks: function(from, to, filter) { + from = clipPos(this, from); to = clipPos(this, to); + var found = [], lineNo = from.line; + this.iter(from.line, to.line + 1, function(line) { + var spans = line.markedSpans; + if (spans) for (var i = 0; i < spans.length; i++) { + var span = spans[i]; + if (!(lineNo == from.line && from.ch > span.to || + span.from == null && lineNo != from.line|| + lineNo == to.line && span.from > to.ch) && + (!filter || filter(span.marker))) + found.push(span.marker.parent || span.marker); + } + ++lineNo; + }); + return found; + }, + getAllMarks: function() { + var markers = []; + this.iter(function(line) { + var sps = line.markedSpans; + if (sps) for (var i = 0; i < sps.length; ++i) + if (sps[i].from != null) markers.push(sps[i].marker); + }); + return markers; + }, + + posFromIndex: function(off) { + var ch, lineNo = this.first; + this.iter(function(line) { + var sz = line.text.length + 1; + if (sz > off) { ch = off; return true; } + off -= sz; + ++lineNo; + }); + return clipPos(this, Pos(lineNo, ch)); + }, + indexFromPos: function (coords) { + coords = clipPos(this, coords); + var index = coords.ch; + if (coords.line < this.first || coords.ch < 0) return 0; + this.iter(this.first, coords.line, function (line) { + index += line.text.length + 1; + }); + return index; + }, + + copy: function(copyHistory) { + var doc = new Doc(getLines(this, this.first, this.first + this.size), this.modeOption, this.first); + doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft; + doc.sel = this.sel; + doc.extend = false; + if (copyHistory) { + doc.history.undoDepth = this.history.undoDepth; + doc.setHistory(this.getHistory()); + } + return doc; + }, + + linkedDoc: function(options) { + if (!options) options = {}; + var from = this.first, to = this.first + this.size; + if (options.from != null && options.from > from) from = options.from; + if (options.to != null && options.to < to) to = options.to; + var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from); + if (options.sharedHist) copy.history = this.history; + (this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist}); + copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]; + copySharedMarkers(copy, findSharedMarkers(this)); + return copy; + }, + unlinkDoc: function(other) { + if (other instanceof CodeMirror) other = other.doc; + if (this.linked) for (var i = 0; i < this.linked.length; ++i) { + var link = this.linked[i]; + if (link.doc != other) continue; + this.linked.splice(i, 1); + other.unlinkDoc(this); + detachSharedMarkers(findSharedMarkers(this)); + break; + } + // If the histories were shared, split them again + if (other.history == this.history) { + var splitIds = [other.id]; + linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true); + other.history = new History(null); + other.history.done = copyHistoryArray(this.history.done, splitIds); + other.history.undone = copyHistoryArray(this.history.undone, splitIds); + } + }, + iterLinkedDocs: function(f) {linkedDocs(this, f);}, + + getMode: function() {return this.mode;}, + getEditor: function() {return this.cm;} + }); + + // Public alias. + Doc.prototype.eachLine = Doc.prototype.iter; + + // Set up methods on CodeMirror's prototype to redirect to the editor's document. + var dontDelegate = "iter insert remove copy getEditor".split(" "); + for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0) + CodeMirror.prototype[prop] = (function(method) { + return function() {return method.apply(this.doc, arguments);}; + })(Doc.prototype[prop]); + + eventMixin(Doc); + + // Call f for all linked documents. + function linkedDocs(doc, f, sharedHistOnly) { + function propagate(doc, skip, sharedHist) { + if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) { + var rel = doc.linked[i]; + if (rel.doc == skip) continue; + var shared = sharedHist && rel.sharedHist; + if (sharedHistOnly && !shared) continue; + f(rel.doc, shared); + propagate(rel.doc, doc, shared); + } + } + propagate(doc, null, true); + } + + // Attach a document to an editor. + function attachDoc(cm, doc) { + if (doc.cm) throw new Error("This document is already in use."); + cm.doc = doc; + doc.cm = cm; + estimateLineHeights(cm); + loadMode(cm); + if (!cm.options.lineWrapping) findMaxLine(cm); + cm.options.mode = doc.modeOption; + regChange(cm); + } + + // LINE UTILITIES + + // Find the line object corresponding to the given line number. + function getLine(doc, n) { + n -= doc.first; + if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document."); + for (var chunk = doc; !chunk.lines;) { + for (var i = 0;; ++i) { + var child = chunk.children[i], sz = child.chunkSize(); + if (n < sz) { chunk = child; break; } + n -= sz; + } + } + return chunk.lines[n]; + } + + // Get the part of a document between two positions, as an array of + // strings. + function getBetween(doc, start, end) { + var out = [], n = start.line; + doc.iter(start.line, end.line + 1, function(line) { + var text = line.text; + if (n == end.line) text = text.slice(0, end.ch); + if (n == start.line) text = text.slice(start.ch); + out.push(text); + ++n; + }); + return out; + } + // Get the lines between from and to, as array of strings. + function getLines(doc, from, to) { + var out = []; + doc.iter(from, to, function(line) { out.push(line.text); }); + return out; + } + + // Update the height of a line, propagating the height change + // upwards to parent nodes. + function updateLineHeight(line, height) { + var diff = height - line.height; + if (diff) for (var n = line; n; n = n.parent) n.height += diff; + } + + // Given a line object, find its line number by walking up through + // its parent links. + function lineNo(line) { + if (line.parent == null) return null; + var cur = line.parent, no = indexOf(cur.lines, line); + for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) { + for (var i = 0;; ++i) { + if (chunk.children[i] == cur) break; + no += chunk.children[i].chunkSize(); + } + } + return no + cur.first; + } + + // Find the line at the given vertical position, using the height + // information in the document tree. + function lineAtHeight(chunk, h) { + var n = chunk.first; + outer: do { + for (var i = 0; i < chunk.children.length; ++i) { + var child = chunk.children[i], ch = child.height; + if (h < ch) { chunk = child; continue outer; } + h -= ch; + n += child.chunkSize(); + } + return n; + } while (!chunk.lines); + for (var i = 0; i < chunk.lines.length; ++i) { + var line = chunk.lines[i], lh = line.height; + if (h < lh) break; + h -= lh; + } + return n + i; + } + + + // Find the height above the given line. + function heightAtLine(lineObj) { + lineObj = visualLine(lineObj); + + var h = 0, chunk = lineObj.parent; + for (var i = 0; i < chunk.lines.length; ++i) { + var line = chunk.lines[i]; + if (line == lineObj) break; + else h += line.height; + } + for (var p = chunk.parent; p; chunk = p, p = chunk.parent) { + for (var i = 0; i < p.children.length; ++i) { + var cur = p.children[i]; + if (cur == chunk) break; + else h += cur.height; + } + } + return h; + } + + // Get the bidi ordering for the given line (and cache it). Returns + // false for lines that are fully left-to-right, and an array of + // BidiSpan objects otherwise. + function getOrder(line) { + var order = line.order; + if (order == null) order = line.order = bidiOrdering(line.text); + return order; + } + + // HISTORY + + function History(startGen) { + // Arrays of change events and selections. Doing something adds an + // event to done and clears undo. Undoing moves events from done + // to undone, redoing moves them in the other direction. + this.done = []; this.undone = []; + this.undoDepth = Infinity; + // Used to track when changes can be merged into a single undo + // event + this.lastModTime = this.lastSelTime = 0; + this.lastOp = null; + this.lastOrigin = this.lastSelOrigin = null; + // Used by the isClean() method + this.generation = this.maxGeneration = startGen || 1; + } + + // Create a history change event from an updateDoc-style change + // object. + function historyChangeFromChange(doc, change) { + var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}; + attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); + linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true); + return histChange; + } + + // Pop all selection events off the end of a history array. Stop at + // a change event. + function clearSelectionEvents(array) { + while (array.length) { + var last = lst(array); + if (last.ranges) array.pop(); + else break; + } + } + + // Find the top change event in the history. Pop off selection + // events that are in the way. + function lastChangeEvent(hist, force) { + if (force) { + clearSelectionEvents(hist.done); + return lst(hist.done); + } else if (hist.done.length && !lst(hist.done).ranges) { + return lst(hist.done); + } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) { + hist.done.pop(); + return lst(hist.done); + } + } + + // Register a change in the history. Merges changes that are within + // a single operation, ore are close together with an origin that + // allows merging (starting with "+") into a single event. + function addChangeToHistory(doc, change, selAfter, opId) { + var hist = doc.history; + hist.undone.length = 0; + var time = +new Date, cur; + + if ((hist.lastOp == opId || + hist.lastOrigin == change.origin && change.origin && + ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) || + change.origin.charAt(0) == "*")) && + (cur = lastChangeEvent(hist, hist.lastOp == opId))) { + // Merge this change into the last event + var last = lst(cur.changes); + if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) { + // Optimized case for simple insertion -- don't want to add + // new changesets for every character typed + last.to = changeEnd(change); + } else { + // Add new sub-event + cur.changes.push(historyChangeFromChange(doc, change)); + } + } else { + // Can not be merged, start a new event. + var before = lst(hist.done); + if (!before || !before.ranges) + pushSelectionToHistory(doc.sel, hist.done); + cur = {changes: [historyChangeFromChange(doc, change)], + generation: hist.generation}; + hist.done.push(cur); + while (hist.done.length > hist.undoDepth) { + hist.done.shift(); + if (!hist.done[0].ranges) hist.done.shift(); + } + } + hist.done.push(selAfter); + hist.generation = ++hist.maxGeneration; + hist.lastModTime = hist.lastSelTime = time; + hist.lastOp = opId; + hist.lastOrigin = hist.lastSelOrigin = change.origin; + + if (!last) signal(doc, "historyAdded"); + } + + function selectionEventCanBeMerged(doc, origin, prev, sel) { + var ch = origin.charAt(0); + return ch == "*" || + ch == "+" && + prev.ranges.length == sel.ranges.length && + prev.somethingSelected() == sel.somethingSelected() && + new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500); + } + + // Called whenever the selection changes, sets the new selection as + // the pending selection in the history, and pushes the old pending + // selection into the 'done' array when it was significantly + // different (in number of selected ranges, emptiness, or time). + function addSelectionToHistory(doc, sel, opId, options) { + var hist = doc.history, origin = options && options.origin; + + // A new event is started when the previous origin does not match + // the current, or the origins don't allow matching. Origins + // starting with * are always merged, those starting with + are + // merged when similar and close together in time. + if (opId == hist.lastOp || + (origin && hist.lastSelOrigin == origin && + (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin || + selectionEventCanBeMerged(doc, origin, lst(hist.done), sel)))) + hist.done[hist.done.length - 1] = sel; + else + pushSelectionToHistory(sel, hist.done); + + hist.lastSelTime = +new Date; + hist.lastSelOrigin = origin; + hist.lastOp = opId; + if (options && options.clearRedo !== false) + clearSelectionEvents(hist.undone); + } + + function pushSelectionToHistory(sel, dest) { + var top = lst(dest); + if (!(top && top.ranges && top.equals(sel))) + dest.push(sel); + } + + // Used to store marked span information in the history. + function attachLocalSpans(doc, change, from, to) { + var existing = change["spans_" + doc.id], n = 0; + doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) { + if (line.markedSpans) + (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; + ++n; + }); + } + + // When un/re-doing restores text containing marked spans, those + // that have been explicitly cleared should not be restored. + function removeClearedSpans(spans) { + if (!spans) return null; + for (var i = 0, out; i < spans.length; ++i) { + if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); } + else if (out) out.push(spans[i]); + } + return !out ? spans : out.length ? out : null; + } + + // Retrieve and filter the old marked spans stored in a change event. + function getOldSpans(doc, change) { + var found = change["spans_" + doc.id]; + if (!found) return null; + for (var i = 0, nw = []; i < change.text.length; ++i) + nw.push(removeClearedSpans(found[i])); + return nw; + } + + // Used both to provide a JSON-safe object in .getHistory, and, when + // detaching a document, to split the history in two + function copyHistoryArray(events, newGroup, instantiateSel) { + for (var i = 0, copy = []; i < events.length; ++i) { + var event = events[i]; + if (event.ranges) { + copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event); + continue; + } + var changes = event.changes, newChanges = []; + copy.push({changes: newChanges}); + for (var j = 0; j < changes.length; ++j) { + var change = changes[j], m; + newChanges.push({from: change.from, to: change.to, text: change.text}); + if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) { + if (indexOf(newGroup, Number(m[1])) > -1) { + lst(newChanges)[prop] = change[prop]; + delete change[prop]; + } + } + } + } + return copy; + } + + // Rebasing/resetting history to deal with externally-sourced changes + + function rebaseHistSelSingle(pos, from, to, diff) { + if (to < pos.line) { + pos.line += diff; + } else if (from < pos.line) { + pos.line = from; + pos.ch = 0; + } + } + + // Tries to rebase an array of history events given a change in the + // document. If the change touches the same lines as the event, the + // event, and everything 'behind' it, is discarded. If the change is + // before the event, the event's positions are updated. Uses a + // copy-on-write scheme for the positions, to avoid having to + // reallocate them all on every rebase, but also avoid problems with + // shared position objects being unsafely updated. + function rebaseHistArray(array, from, to, diff) { + for (var i = 0; i < array.length; ++i) { + var sub = array[i], ok = true; + if (sub.ranges) { + if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; } + for (var j = 0; j < sub.ranges.length; j++) { + rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff); + rebaseHistSelSingle(sub.ranges[j].head, from, to, diff); + } + continue; + } + for (var j = 0; j < sub.changes.length; ++j) { + var cur = sub.changes[j]; + if (to < cur.from.line) { + cur.from = Pos(cur.from.line + diff, cur.from.ch); + cur.to = Pos(cur.to.line + diff, cur.to.ch); + } else if (from <= cur.to.line) { + ok = false; + break; + } + } + if (!ok) { + array.splice(0, i + 1); + i = 0; + } + } + } + + function rebaseHist(hist, change) { + var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1; + rebaseHistArray(hist.done, from, to, diff); + rebaseHistArray(hist.undone, from, to, diff); + } + + // EVENT UTILITIES + + // Due to the fact that we still support jurassic IE versions, some + // compatibility wrappers are needed. + + var e_preventDefault = CodeMirror.e_preventDefault = function(e) { + if (e.preventDefault) e.preventDefault(); + else e.returnValue = false; + }; + var e_stopPropagation = CodeMirror.e_stopPropagation = function(e) { + if (e.stopPropagation) e.stopPropagation(); + else e.cancelBubble = true; + }; + function e_defaultPrevented(e) { + return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false; + } + var e_stop = CodeMirror.e_stop = function(e) {e_preventDefault(e); e_stopPropagation(e);}; + + function e_target(e) {return e.target || e.srcElement;} + function e_button(e) { + var b = e.which; + if (b == null) { + if (e.button & 1) b = 1; + else if (e.button & 2) b = 3; + else if (e.button & 4) b = 2; + } + if (mac && e.ctrlKey && b == 1) b = 3; + return b; + } + + // EVENT HANDLING + + // Lightweight event framework. on/off also work on DOM nodes, + // registering native DOM handlers. + + var on = CodeMirror.on = function(emitter, type, f) { + if (emitter.addEventListener) + emitter.addEventListener(type, f, false); + else if (emitter.attachEvent) + emitter.attachEvent("on" + type, f); + else { + var map = emitter._handlers || (emitter._handlers = {}); + var arr = map[type] || (map[type] = []); + arr.push(f); + } + }; + + var off = CodeMirror.off = function(emitter, type, f) { + if (emitter.removeEventListener) + emitter.removeEventListener(type, f, false); + else if (emitter.detachEvent) + emitter.detachEvent("on" + type, f); + else { + var arr = emitter._handlers && emitter._handlers[type]; + if (!arr) return; + for (var i = 0; i < arr.length; ++i) + if (arr[i] == f) { arr.splice(i, 1); break; } + } + }; + + var signal = CodeMirror.signal = function(emitter, type /*, values...*/) { + var arr = emitter._handlers && emitter._handlers[type]; + if (!arr) return; + var args = Array.prototype.slice.call(arguments, 2); + for (var i = 0; i < arr.length; ++i) arr[i].apply(null, args); + }; + + // Often, we want to signal events at a point where we are in the + // middle of some work, but don't want the handler to start calling + // other methods on the editor, which might be in an inconsistent + // state or simply not expect any other events to happen. + // signalLater looks whether there are any handlers, and schedules + // them to be executed when the last operation ends, or, if no + // operation is active, when a timeout fires. + var delayedCallbacks, delayedCallbackDepth = 0; + function signalLater(emitter, type /*, values...*/) { + var arr = emitter._handlers && emitter._handlers[type]; + if (!arr) return; + var args = Array.prototype.slice.call(arguments, 2); + if (!delayedCallbacks) { + ++delayedCallbackDepth; + delayedCallbacks = []; + setTimeout(fireDelayed, 0); + } + function bnd(f) {return function(){f.apply(null, args);};}; + for (var i = 0; i < arr.length; ++i) + delayedCallbacks.push(bnd(arr[i])); + } + + function fireDelayed() { + --delayedCallbackDepth; + var delayed = delayedCallbacks; + delayedCallbacks = null; + for (var i = 0; i < delayed.length; ++i) delayed[i](); + } + + // The DOM events that CodeMirror handles can be overridden by + // registering a (non-DOM) handler on the editor for the event name, + // and preventDefault-ing the event in that handler. + function signalDOMEvent(cm, e, override) { + signal(cm, override || e.type, cm, e); + return e_defaultPrevented(e) || e.codemirrorIgnore; + } + + function signalCursorActivity(cm) { + var arr = cm._handlers && cm._handlers.cursorActivity; + if (!arr) return; + var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []); + for (var i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1) + set.push(arr[i]); + } + + function hasHandler(emitter, type) { + var arr = emitter._handlers && emitter._handlers[type]; + return arr && arr.length > 0; + } + + // Add on and off methods to a constructor's prototype, to make + // registering events on such objects more convenient. + function eventMixin(ctor) { + ctor.prototype.on = function(type, f) {on(this, type, f);}; + ctor.prototype.off = function(type, f) {off(this, type, f);}; + } + + // MISC UTILITIES + + // Number of pixels added to scroller and sizer to hide scrollbar + var scrollerCutOff = 30; + + // Returned or thrown by various protocols to signal 'I'm not + // handling this'. + var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}}; + + // Reused option objects for setSelection & friends + var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"}; + + function Delayed() {this.id = null;} + Delayed.prototype.set = function(ms, f) { + clearTimeout(this.id); + this.id = setTimeout(f, ms); + }; + + // Counts the column offset in a string, taking tabs into account. + // Used mostly to find indentation. + var countColumn = CodeMirror.countColumn = function(string, end, tabSize, startIndex, startValue) { + if (end == null) { + end = string.search(/[^\s\u00a0]/); + if (end == -1) end = string.length; + } + for (var i = startIndex || 0, n = startValue || 0;;) { + var nextTab = string.indexOf("\t", i); + if (nextTab < 0 || nextTab >= end) + return n + (end - i); + n += nextTab - i; + n += tabSize - (n % tabSize); + i = nextTab + 1; + } + }; + + // The inverse of countColumn -- find the offset that corresponds to + // a particular column. + function findColumn(string, goal, tabSize) { + for (var pos = 0, col = 0;;) { + var nextTab = string.indexOf("\t", pos); + if (nextTab == -1) nextTab = string.length; + var skipped = nextTab - pos; + if (nextTab == string.length || col + skipped >= goal) + return pos + Math.min(skipped, goal - col); + col += nextTab - pos; + col += tabSize - (col % tabSize); + pos = nextTab + 1; + if (col >= goal) return pos; + } + } + + var spaceStrs = [""]; + function spaceStr(n) { + while (spaceStrs.length <= n) + spaceStrs.push(lst(spaceStrs) + " "); + return spaceStrs[n]; + } + + function lst(arr) { return arr[arr.length-1]; } + + var selectInput = function(node) { node.select(); }; + if (ios) // Mobile Safari apparently has a bug where select() is broken. + selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; + else if (ie) // Suppress mysterious IE10 errors + selectInput = function(node) { try { node.select(); } catch(_e) {} }; + + function indexOf(array, elt) { + for (var i = 0; i < array.length; ++i) + if (array[i] == elt) return i; + return -1; + } + if ([].indexOf) indexOf = function(array, elt) { return array.indexOf(elt); }; + function map(array, f) { + var out = []; + for (var i = 0; i < array.length; i++) out[i] = f(array[i], i); + return out; + } + if ([].map) map = function(array, f) { return array.map(f); }; + + function createObj(base, props) { + var inst; + if (Object.create) { + inst = Object.create(base); + } else { + var ctor = function() {}; + ctor.prototype = base; + inst = new ctor(); + } + if (props) copyObj(props, inst); + return inst; + }; + + function copyObj(obj, target, overwrite) { + if (!target) target = {}; + for (var prop in obj) + if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop))) + target[prop] = obj[prop]; + return target; + } + + function bind(f) { + var args = Array.prototype.slice.call(arguments, 1); + return function(){return f.apply(null, args);}; + } + + var nonASCIISingleCaseWordChar = /[\u00df\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/; + var isWordChar = CodeMirror.isWordChar = function(ch) { + return /\w/.test(ch) || ch > "\x80" && + (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)); + }; + + function isEmpty(obj) { + for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false; + return true; + } + + // Extending unicode characters. A series of a non-extending char + + // any number of extending chars is treated as a single unit as far + // as editing and measuring is concerned. This is not fully correct, + // since some scripts/fonts/browsers also treat other configurations + // of code points as a group. + var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/; + function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch); } + + // DOM UTILITIES + + function elt(tag, content, className, style) { + var e = document.createElement(tag); + if (className) e.className = className; + if (style) e.style.cssText = style; + if (typeof content == "string") e.appendChild(document.createTextNode(content)); + else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]); + return e; + } + + var range; + if (document.createRange) range = function(node, start, end) { + var r = document.createRange(); + r.setEnd(node, end); + r.setStart(node, start); + return r; + }; + else range = function(node, start, end) { + var r = document.body.createTextRange(); + r.moveToElementText(node.parentNode); + r.collapse(true); + r.moveEnd("character", end); + r.moveStart("character", start); + return r; + }; + + function removeChildren(e) { + for (var count = e.childNodes.length; count > 0; --count) + e.removeChild(e.firstChild); + return e; + } + + function removeChildrenAndAdd(parent, e) { + return removeChildren(parent).appendChild(e); + } + + function contains(parent, child) { + if (parent.contains) + return parent.contains(child); + while (child = child.parentNode) + if (child == parent) return true; + } + + function activeElt() { return document.activeElement; } + // Older versions of IE throws unspecified error when touching + // document.activeElement in some cases (during loading, in iframe) + if (ie_upto10) activeElt = function() { + try { return document.activeElement; } + catch(e) { return document.body; } + }; + + function classTest(cls) { return new RegExp("\\b" + cls + "\\b\\s*"); } + function rmClass(node, cls) { + var test = classTest(cls); + if (test.test(node.className)) node.className = node.className.replace(test, ""); + } + function addClass(node, cls) { + if (!classTest(cls).test(node.className)) node.className += " " + cls; + } + function joinClasses(a, b) { + var as = a.split(" "); + for (var i = 0; i < as.length; i++) + if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i]; + return b; + } + + // FEATURE DETECTION + + // Detect drag-and-drop + var dragAndDrop = function() { + // There is *some* kind of drag-and-drop support in IE6-8, but I + // couldn't get it to work yet. + if (ie_upto8) return false; + var div = elt('div'); + return "draggable" in div || "dragDrop" in div; + }(); + + var knownScrollbarWidth; + function scrollbarWidth(measure) { + if (knownScrollbarWidth != null) return knownScrollbarWidth; + var test = elt("div", null, null, "width: 50px; height: 50px; overflow-x: scroll"); + removeChildrenAndAdd(measure, test); + if (test.offsetWidth) + knownScrollbarWidth = test.offsetHeight - test.clientHeight; + return knownScrollbarWidth || 0; + } + + var zwspSupported; + function zeroWidthElement(measure) { + if (zwspSupported == null) { + var test = elt("span", "\u200b"); + removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")])); + if (measure.firstChild.offsetHeight != 0) + zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !ie_upto7; + } + if (zwspSupported) return elt("span", "\u200b"); + else return elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px"); + } + + // Feature-detect IE's crummy client rect reporting for bidi text + var badBidiRects; + function hasBadBidiRects(measure) { + if (badBidiRects != null) return badBidiRects; + var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA")); + var r0 = range(txt, 0, 1).getBoundingClientRect(); + if (r0.left == r0.right) return false; + var r1 = range(txt, 1, 2).getBoundingClientRect(); + return badBidiRects = (r1.right - r0.right < 3); + } + + // See if "".split is the broken IE version, if so, provide an + // alternative way to split lines. + var splitLines = CodeMirror.splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) { + var pos = 0, result = [], l = string.length; + while (pos <= l) { + var nl = string.indexOf("\n", pos); + if (nl == -1) nl = string.length; + var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl); + var rt = line.indexOf("\r"); + if (rt != -1) { + result.push(line.slice(0, rt)); + pos += rt + 1; + } else { + result.push(line); + pos = nl + 1; + } + } + return result; + } : function(string){return string.split(/\r\n?|\n/);}; + + var hasSelection = window.getSelection ? function(te) { + try { return te.selectionStart != te.selectionEnd; } + catch(e) { return false; } + } : function(te) { + try {var range = te.ownerDocument.selection.createRange();} + catch(e) {} + if (!range || range.parentElement() != te) return false; + return range.compareEndPoints("StartToEnd", range) != 0; + }; + + var hasCopyEvent = (function() { + var e = elt("div"); + if ("oncopy" in e) return true; + e.setAttribute("oncopy", "return;"); + return typeof e.oncopy == "function"; + })(); + + // KEY NAMES + + var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt", + 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End", + 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert", + 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod", 107: "=", 109: "-", 127: "Delete", + 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", + 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete", + 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"}; + CodeMirror.keyNames = keyNames; + (function() { + // Number keys + for (var i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i); + // Alphabetic keys + for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i); + // Function keys + for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i; + })(); + + // BIDI HELPERS + + function iterateBidiSections(order, from, to, f) { + if (!order) return f(from, to, "ltr"); + var found = false; + for (var i = 0; i < order.length; ++i) { + var part = order[i]; + if (part.from < to && part.to > from || from == to && part.to == from) { + f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr"); + found = true; + } + } + if (!found) f(from, to, "ltr"); + } + + function bidiLeft(part) { return part.level % 2 ? part.to : part.from; } + function bidiRight(part) { return part.level % 2 ? part.from : part.to; } + + function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; } + function lineRight(line) { + var order = getOrder(line); + if (!order) return line.text.length; + return bidiRight(lst(order)); + } + + function lineStart(cm, lineN) { + var line = getLine(cm.doc, lineN); + var visual = visualLine(line); + if (visual != line) lineN = lineNo(visual); + var order = getOrder(visual); + var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual); + return Pos(lineN, ch); + } + function lineEnd(cm, lineN) { + var merged, line = getLine(cm.doc, lineN); + while (merged = collapsedSpanAtEnd(line)) { + line = merged.find(1, true).line; + lineN = null; + } + var order = getOrder(line); + var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line); + return Pos(lineN == null ? lineNo(line) : lineN, ch); + } + + function compareBidiLevel(order, a, b) { + var linedir = order[0].level; + if (a == linedir) return true; + if (b == linedir) return false; + return a < b; + } + var bidiOther; + function getBidiPartAt(order, pos) { + bidiOther = null; + for (var i = 0, found; i < order.length; ++i) { + var cur = order[i]; + if (cur.from < pos && cur.to > pos) return i; + if ((cur.from == pos || cur.to == pos)) { + if (found == null) { + found = i; + } else if (compareBidiLevel(order, cur.level, order[found].level)) { + if (cur.from != cur.to) bidiOther = found; + return i; + } else { + if (cur.from != cur.to) bidiOther = i; + return found; + } + } + } + return found; + } + + function moveInLine(line, pos, dir, byUnit) { + if (!byUnit) return pos + dir; + do pos += dir; + while (pos > 0 && isExtendingChar(line.text.charAt(pos))); + return pos; + } + + // This is needed in order to move 'visually' through bi-directional + // text -- i.e., pressing left should make the cursor go left, even + // when in RTL text. The tricky part is the 'jumps', where RTL and + // LTR text touch each other. This often requires the cursor offset + // to move more than one unit, in order to visually move one unit. + function moveVisually(line, start, dir, byUnit) { + var bidi = getOrder(line); + if (!bidi) return moveLogically(line, start, dir, byUnit); + var pos = getBidiPartAt(bidi, start), part = bidi[pos]; + var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit); + + for (;;) { + if (target > part.from && target < part.to) return target; + if (target == part.from || target == part.to) { + if (getBidiPartAt(bidi, target) == pos) return target; + part = bidi[pos += dir]; + return (dir > 0) == part.level % 2 ? part.to : part.from; + } else { + part = bidi[pos += dir]; + if (!part) return null; + if ((dir > 0) == part.level % 2) + target = moveInLine(line, part.to, -1, byUnit); + else + target = moveInLine(line, part.from, 1, byUnit); + } + } + } + + function moveLogically(line, start, dir, byUnit) { + var target = start + dir; + if (byUnit) while (target > 0 && isExtendingChar(line.text.charAt(target))) target += dir; + return target < 0 || target > line.text.length ? null : target; + } + + // Bidirectional ordering algorithm + // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm + // that this (partially) implements. + + // One-char codes used for character types: + // L (L): Left-to-Right + // R (R): Right-to-Left + // r (AL): Right-to-Left Arabic + // 1 (EN): European Number + // + (ES): European Number Separator + // % (ET): European Number Terminator + // n (AN): Arabic Number + // , (CS): Common Number Separator + // m (NSM): Non-Spacing Mark + // b (BN): Boundary Neutral + // s (B): Paragraph Separator + // t (S): Segment Separator + // w (WS): Whitespace + // N (ON): Other Neutrals + + // Returns null if characters are ordered as they appear + // (left-to-right), or an array of sections ({from, to, level} + // objects) in the order in which they occur visually. + var bidiOrdering = (function() { + // Character types for codepoints 0 to 0xff + var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"; + // Character types for codepoints 0x600 to 0x6ff + var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm"; + function charType(code) { + if (code <= 0xf7) return lowTypes.charAt(code); + else if (0x590 <= code && code <= 0x5f4) return "R"; + else if (0x600 <= code && code <= 0x6ed) return arabicTypes.charAt(code - 0x600); + else if (0x6ee <= code && code <= 0x8ac) return "r"; + else if (0x2000 <= code && code <= 0x200b) return "w"; + else if (code == 0x200c) return "b"; + else return "L"; + } + + var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/; + var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/; + // Browsers seem to always treat the boundaries of block elements as being L. + var outerType = "L"; + + function BidiSpan(level, from, to) { + this.level = level; + this.from = from; this.to = to; + } + + return function(str) { + if (!bidiRE.test(str)) return false; + var len = str.length, types = []; + for (var i = 0, type; i < len; ++i) + types.push(type = charType(str.charCodeAt(i))); + + // W1. Examine each non-spacing mark (NSM) in the level run, and + // change the type of the NSM to the type of the previous + // character. If the NSM is at the start of the level run, it will + // get the type of sor. + for (var i = 0, prev = outerType; i < len; ++i) { + var type = types[i]; + if (type == "m") types[i] = prev; + else prev = type; + } + + // W2. Search backwards from each instance of a European number + // until the first strong type (R, L, AL, or sor) is found. If an + // AL is found, change the type of the European number to Arabic + // number. + // W3. Change all ALs to R. + for (var i = 0, cur = outerType; i < len; ++i) { + var type = types[i]; + if (type == "1" && cur == "r") types[i] = "n"; + else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; } + } + + // W4. A single European separator between two European numbers + // changes to a European number. A single common separator between + // two numbers of the same type changes to that type. + for (var i = 1, prev = types[0]; i < len - 1; ++i) { + var type = types[i]; + if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1"; + else if (type == "," && prev == types[i+1] && + (prev == "1" || prev == "n")) types[i] = prev; + prev = type; + } + + // W5. A sequence of European terminators adjacent to European + // numbers changes to all European numbers. + // W6. Otherwise, separators and terminators change to Other + // Neutral. + for (var i = 0; i < len; ++i) { + var type = types[i]; + if (type == ",") types[i] = "N"; + else if (type == "%") { + for (var end = i + 1; end < len && types[end] == "%"; ++end) {} + var replace = (i && types[i-1] == "!") || (end < len && types[end] == "1") ? "1" : "N"; + for (var j = i; j < end; ++j) types[j] = replace; + i = end - 1; + } + } + + // W7. Search backwards from each instance of a European number + // until the first strong type (R, L, or sor) is found. If an L is + // found, then change the type of the European number to L. + for (var i = 0, cur = outerType; i < len; ++i) { + var type = types[i]; + if (cur == "L" && type == "1") types[i] = "L"; + else if (isStrong.test(type)) cur = type; + } + + // N1. A sequence of neutrals takes the direction of the + // surrounding strong text if the text on both sides has the same + // direction. European and Arabic numbers act as if they were R in + // terms of their influence on neutrals. Start-of-level-run (sor) + // and end-of-level-run (eor) are used at level run boundaries. + // N2. Any remaining neutrals take the embedding direction. + for (var i = 0; i < len; ++i) { + if (isNeutral.test(types[i])) { + for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {} + var before = (i ? types[i-1] : outerType) == "L"; + var after = (end < len ? types[end] : outerType) == "L"; + var replace = before || after ? "L" : "R"; + for (var j = i; j < end; ++j) types[j] = replace; + i = end - 1; + } + } + + // Here we depart from the documented algorithm, in order to avoid + // building up an actual levels array. Since there are only three + // levels (0, 1, 2) in an implementation that doesn't take + // explicit embedding into account, we can build up the order on + // the fly, without following the level-based algorithm. + var order = [], m; + for (var i = 0; i < len;) { + if (countsAsLeft.test(types[i])) { + var start = i; + for (++i; i < len && countsAsLeft.test(types[i]); ++i) {} + order.push(new BidiSpan(0, start, i)); + } else { + var pos = i, at = order.length; + for (++i; i < len && types[i] != "L"; ++i) {} + for (var j = pos; j < i;) { + if (countsAsNum.test(types[j])) { + if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j)); + var nstart = j; + for (++j; j < i && countsAsNum.test(types[j]); ++j) {} + order.splice(at, 0, new BidiSpan(2, nstart, j)); + pos = j; + } else ++j; + } + if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i)); + } + } + if (order[0].level == 1 && (m = str.match(/^\s+/))) { + order[0].from = m[0].length; + order.unshift(new BidiSpan(0, 0, m[0].length)); + } + if (lst(order).level == 1 && (m = str.match(/\s+$/))) { + lst(order).to -= m[0].length; + order.push(new BidiSpan(0, len - m[0].length, len)); + } + if (order[0].level != lst(order).level) + order.push(new BidiSpan(order[0].level, len, len)); + + return order; + }; + })(); + + // THE END + + CodeMirror.version = "4.1.0"; + + return CodeMirror; +}); diff --git a/ethereal/assets/muted/lib/go.js b/ethereal/assets/muted/lib/go.js new file mode 100644 index 000000000..9f1c1c4ab --- /dev/null +++ b/ethereal/assets/muted/lib/go.js @@ -0,0 +1,182 @@ +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { +"use strict"; + +CodeMirror.defineMode("go", function(config) { + var indentUnit = config.indentUnit; + + var keywords = { + "break":true, "case":true, "chan":true, "const":true, "continue":true, + "default":true, "defer":true, "else":true, "fallthrough":true, "for":true, + "func":true, "go":true, "goto":true, "if":true, "import":true, + "interface":true, "map":true, "package":true, "range":true, "return":true, + "select":true, "struct":true, "switch":true, "type":true, "var":true, + "bool":true, "byte":true, "complex64":true, "complex128":true, + "float32":true, "float64":true, "int8":true, "int16":true, "int32":true, + "int64":true, "string":true, "uint8":true, "uint16":true, "uint32":true, + "uint64":true, "int":true, "uint":true, "uintptr":true, "big": true, + "main": true, "init": true, "this":true + }; + + var atoms = { + "true":true, "false":true, "iota":true, "nil":true, "append":true, + "cap":true, "close":true, "complex":true, "copy":true, "imag":true, + "len":true, "make":true, "new":true, "panic":true, "print":true, + "println":true, "real":true, "recover":true, + }; + + var isOperatorChar = /[+\-*&^%:=<>!|\/]/; + + var curPunc; + + function tokenBase(stream, state) { + var ch = stream.next(); + if (ch == '"' || ch == "'" || ch == "`") { + state.tokenize = tokenString(ch); + return state.tokenize(stream, state); + } + if (/[\d\.]/.test(ch)) { + if (ch == ".") { + stream.match(/^[0-9]+([eE][\-+]?[0-9]+)?/); + } else if (ch == "0") { + stream.match(/^[xX][0-9a-fA-F]+/) || stream.match(/^0[0-7]+/); + } else { + stream.match(/^[0-9]*\.?[0-9]*([eE][\-+]?[0-9]+)?/); + } + return "number"; + } + if (/[\[\]{}\(\),;\:\.]/.test(ch)) { + curPunc = ch; + return null; + } + if (ch == "/") { + if (stream.eat("*")) { + state.tokenize = tokenComment; + return tokenComment(stream, state); + } + if (stream.eat("/")) { + stream.skipToEnd(); + return "comment"; + } + } + if (isOperatorChar.test(ch)) { + stream.eatWhile(isOperatorChar); + return "operator"; + } + stream.eatWhile(/[\w\$_]/); + var cur = stream.current(); + if (keywords.propertyIsEnumerable(cur)) { + if (cur == "case" || cur == "default") curPunc = "case"; + return "keyword"; + } + if (atoms.propertyIsEnumerable(cur)) return "atom"; + return "variable"; + } + + function tokenString(quote) { + return function(stream, state) { + var escaped = false, next, end = false; + while ((next = stream.next()) != null) { + if (next == quote && !escaped) {end = true; break;} + escaped = !escaped && next == "\\"; + } + if (end || !(escaped || quote == "`")) + state.tokenize = tokenBase; + return "string"; + }; + } + + function tokenComment(stream, state) { + var maybeEnd = false, ch; + while (ch = stream.next()) { + if (ch == "/" && maybeEnd) { + state.tokenize = tokenBase; + break; + } + maybeEnd = (ch == "*"); + } + return "comment"; + } + + function Context(indented, column, type, align, prev) { + this.indented = indented; + this.column = column; + this.type = type; + this.align = align; + this.prev = prev; + } + function pushContext(state, col, type) { + return state.context = new Context(state.indented, col, type, null, state.context); + } + function popContext(state) { + var t = state.context.type; + if (t == ")" || t == "]" || t == "}") + state.indented = state.context.indented; + return state.context = state.context.prev; + } + + // Interface + + return { + startState: function(basecolumn) { + return { + tokenize: null, + context: new Context((basecolumn || 0) - indentUnit, 0, "top", false), + indented: 0, + startOfLine: true + }; + }, + + token: function(stream, state) { + var ctx = state.context; + if (stream.sol()) { + if (ctx.align == null) ctx.align = false; + state.indented = stream.indentation(); + state.startOfLine = true; + if (ctx.type == "case") ctx.type = "}"; + } + if (stream.eatSpace()) return null; + curPunc = null; + var style = (state.tokenize || tokenBase)(stream, state); + if (style == "comment") return style; + if (ctx.align == null) ctx.align = true; + + if (curPunc == "{") pushContext(state, stream.column(), "}"); + else if (curPunc == "[") pushContext(state, stream.column(), "]"); + else if (curPunc == "(") pushContext(state, stream.column(), ")"); + else if (curPunc == "case") ctx.type = "case"; + else if (curPunc == "}" && ctx.type == "}") ctx = popContext(state); + else if (curPunc == ctx.type) popContext(state); + state.startOfLine = false; + return style; + }, + + indent: function(state, textAfter) { + if (state.tokenize != tokenBase && state.tokenize != null) return 0; + var ctx = state.context, firstChar = textAfter && textAfter.charAt(0); + if (ctx.type == "case" && /^(?:case|default)\b/.test(textAfter)) { + state.context.type = "}"; + return ctx.indented; + } + var closing = firstChar == ctx.type; + if (ctx.align) return ctx.column + (closing ? 0 : 1); + else return ctx.indented + (closing ? 0 : indentUnit); + }, + + electricChars: "{}):", + fold: "brace", + blockCommentStart: "/*", + blockCommentEnd: "*/", + lineComment: "//" + }; +}); + +CodeMirror.defineMIME("text/x-go", "go"); + +}); diff --git a/ethereal/assets/muted/lib/matchbrackets.js b/ethereal/assets/muted/lib/matchbrackets.js new file mode 100644 index 000000000..dcdde81df --- /dev/null +++ b/ethereal/assets/muted/lib/matchbrackets.js @@ -0,0 +1,117 @@ +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + var ie_lt8 = /MSIE \d/.test(navigator.userAgent) && + (document.documentMode == null || document.documentMode < 8); + + var Pos = CodeMirror.Pos; + + var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<"}; + + function findMatchingBracket(cm, where, strict, config) { + var line = cm.getLineHandle(where.line), pos = where.ch - 1; + var match = (pos >= 0 && matching[line.text.charAt(pos)]) || matching[line.text.charAt(++pos)]; + if (!match) return null; + var dir = match.charAt(1) == ">" ? 1 : -1; + if (strict && (dir > 0) != (pos == where.ch)) return null; + var style = cm.getTokenTypeAt(Pos(where.line, pos + 1)); + + var found = scanForBracket(cm, Pos(where.line, pos + (dir > 0 ? 1 : 0)), dir, style || null, config); + if (found == null) return null; + return {from: Pos(where.line, pos), to: found && found.pos, + match: found && found.ch == match.charAt(0), forward: dir > 0}; + } + + // bracketRegex is used to specify which type of bracket to scan + // should be a regexp, e.g. /[[\]]/ + // + // Note: If "where" is on an open bracket, then this bracket is ignored. + // + // Returns false when no bracket was found, null when it reached + // maxScanLines and gave up + function scanForBracket(cm, where, dir, style, config) { + var maxScanLen = (config && config.maxScanLineLength) || 10000; + var maxScanLines = (config && config.maxScanLines) || 1000; + + var stack = []; + var re = config && config.bracketRegex ? config.bracketRegex : /[(){}[\]]/; + var lineEnd = dir > 0 ? Math.min(where.line + maxScanLines, cm.lastLine() + 1) + : Math.max(cm.firstLine() - 1, where.line - maxScanLines); + for (var lineNo = where.line; lineNo != lineEnd; lineNo += dir) { + var line = cm.getLine(lineNo); + if (!line) continue; + var pos = dir > 0 ? 0 : line.length - 1, end = dir > 0 ? line.length : -1; + if (line.length > maxScanLen) continue; + if (lineNo == where.line) pos = where.ch - (dir < 0 ? 1 : 0); + for (; pos != end; pos += dir) { + var ch = line.charAt(pos); + if (re.test(ch) && (style === undefined || cm.getTokenTypeAt(Pos(lineNo, pos + 1)) == style)) { + var match = matching[ch]; + if ((match.charAt(1) == ">") == (dir > 0)) stack.push(ch); + else if (!stack.length) return {pos: Pos(lineNo, pos), ch: ch}; + else stack.pop(); + } + } + } + return lineNo - dir == (dir > 0 ? cm.lastLine() : cm.firstLine()) ? false : null; + } + + function matchBrackets(cm, autoclear, config) { + // Disable brace matching in long lines, since it'll cause hugely slow updates + var maxHighlightLen = cm.state.matchBrackets.maxHighlightLineLength || 1000; + var marks = [], ranges = cm.listSelections(); + for (var i = 0; i < ranges.length; i++) { + var match = ranges[i].empty() && findMatchingBracket(cm, ranges[i].head, false, config); + if (match && cm.getLine(match.from.line).length <= maxHighlightLen) { + var style = match.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket"; + marks.push(cm.markText(match.from, Pos(match.from.line, match.from.ch + 1), {className: style})); + if (match.to && cm.getLine(match.to.line).length <= maxHighlightLen) + marks.push(cm.markText(match.to, Pos(match.to.line, match.to.ch + 1), {className: style})); + } + } + + if (marks.length) { + // Kludge to work around the IE bug from issue #1193, where text + // input stops going to the textare whever this fires. + if (ie_lt8 && cm.state.focused) cm.display.input.focus(); + + var clear = function() { + cm.operation(function() { + for (var i = 0; i < marks.length; i++) marks[i].clear(); + }); + }; + if (autoclear) setTimeout(clear, 800); + else return clear; + } + } + + var currentlyHighlighted = null; + function doMatchBrackets(cm) { + cm.operation(function() { + if (currentlyHighlighted) {currentlyHighlighted(); currentlyHighlighted = null;} + currentlyHighlighted = matchBrackets(cm, false, cm.state.matchBrackets); + }); + } + + CodeMirror.defineOption("matchBrackets", false, function(cm, val, old) { + if (old && old != CodeMirror.Init) + cm.off("cursorActivity", doMatchBrackets); + if (val) { + cm.state.matchBrackets = typeof val == "object" ? val : {}; + cm.on("cursorActivity", doMatchBrackets); + } + }); + + CodeMirror.defineExtension("matchBrackets", function() {matchBrackets(this, true);}); + CodeMirror.defineExtension("findMatchingBracket", function(pos, strict, config){ + return findMatchingBracket(this, pos, strict, config); + }); + CodeMirror.defineExtension("scanForBracket", function(pos, dir, style, config){ + return scanForBracket(this, pos, dir, style, config); + }); +}); diff --git a/ethereal/assets/muted/muted.js b/ethereal/assets/muted/muted.js new file mode 100644 index 000000000..72e858d7a --- /dev/null +++ b/ethereal/assets/muted/muted.js @@ -0,0 +1,61 @@ +// Helper function for generating pseudo callbacks and sending data to the QML part of the application +function postData(data, cb) { + data._seed = Math.floor(Math.random() * 1000000) + if(cb) { + Muted._callbacks[data._seed] = cb; + } + + if(data.args === undefined) { + data.args = []; + } + + navigator.qt.postMessage(JSON.stringify(data)); +} + +window.Muted = { + prototype: Object(), +} + +window.Muted._callbacks = {} +window.Muted._onCallbacks = {} + +function debug(/**/) { + console.log("hello world") + + var args = arguments; + var msg = "" + for(var i = 0; i < args.length; i++){ + if(typeof args[i] == "object") { + msg += " " + JSON.stringify(args[i]) + } else { + msg += args[i] + } + } + + document.querySelector("#debugger").innerHTML += "<div class='line'><div class='col1'></div><div class='col2'>"+msg+"</div></div>"; +} +console.log = function() { + var args = [] + for(var i = 0; i < arguments.length; i++) { + args.push(arguments[i]); + } + postData({call:"log", args:args}) +} + +navigator.qt.onmessage = function(ev) { + var data = JSON.parse(ev.data) + + if(data._event !== undefined) { + Muted.trigger(data._event, data.data); + } else { + if(data._seed) { + var cb = Muted._callbacks[data._seed]; + if(cb) { + // Call the callback + cb(data.data); + // Remove the "trigger" callback + delete Muted._callbacks[ev._seed]; + } + } + } +} diff --git a/ethereal/assets/net.png b/ethereal/assets/net.png Binary files differnew file mode 100644 index 000000000..65a20ea00 --- /dev/null +++ b/ethereal/assets/net.png diff --git a/ethereal/assets/network.png b/ethereal/assets/network.png Binary files differnew file mode 100644 index 000000000..0a9ffe2ec --- /dev/null +++ b/ethereal/assets/network.png diff --git a/ethereal/assets/new.png b/ethereal/assets/new.png Binary files differnew file mode 100644 index 000000000..e80096748 --- /dev/null +++ b/ethereal/assets/new.png diff --git a/ethereal/assets/qml/QmlApp.qml b/ethereal/assets/qml/QmlApp.qml new file mode 100644 index 000000000..f5c503f4c --- /dev/null +++ b/ethereal/assets/qml/QmlApp.qml @@ -0,0 +1,22 @@ +import QtQuick 2.0 +import QtQuick.Controls 1.0; +import QtQuick.Layouts 1.0; +import Ethereum 1.0 + +ApplicationWindow { + minimumWidth: 500 + maximumWidth: 500 + maximumHeight: 400 + minimumHeight: 400 + + function onNewBlockCb(block) { + console.log("Please overwrite onNewBlock(block):", block) + } + function onObjectChangeCb(stateObject) { + console.log("Please overwrite onObjectChangeCb(object)", stateObject) + } + function onStorageChangeCb(storageObject) { + var ev = ["storage", storageObject.stateAddress, storageObject.address].join(":"); + console.log("Please overwrite onStorageChangeCb(object)", ev) + } +} diff --git a/ethereal/assets/qml/first_run.qml b/ethereal/assets/qml/first_run.qml new file mode 100644 index 000000000..0b1dac4c6 --- /dev/null +++ b/ethereal/assets/qml/first_run.qml @@ -0,0 +1,155 @@ +import QtQuick 2.0 +import Ethereum 1.0 + +// Which ones do we actually need? +import QtQuick.Controls 1.0; +import QtQuick.Layouts 1.0; +import QtQuick.Dialogs 1.0; +import QtQuick.Window 2.1; +import QtQuick.Controls.Styles 1.1 +import QtQuick.Dialogs 1.1 + +ApplicationWindow { + id: wizardRoot + width: 500 + height: 400 + title: "Ethereal first run setup" + + Column { + spacing: 5 + anchors.leftMargin: 10 + anchors.left: parent.left + + Text { + visible: true + text: "<h2>Ethereal setup</h2>" + } + + Column { + id: restoreColumn + spacing: 5 + Text { + visible: true + font.pointSize: 14 + text: "Restore your Ethereum account" + id: restoreLabel + } + + TextField { + id: txPrivKey + width: 480 + placeholderText: "Private key or mnemonic words" + focus: true + onTextChanged: { + if(this.text.length == 64){ + detailLabel.text = "Private (hex) key detected." + actionButton.enabled = true + } + else if(this.text.split(" ").length == 24){ + detailLabel.text = "Mnemonic key detected." + actionButton.enabled = true + }else{ + detailLabel.text = "" + actionButton.enabled = false + } + } + } + Row { + spacing: 10 + Button { + id: actionButton + text: "Restore" + enabled: false + onClicked: { + var success = lib.importAndSetPrivKey(txPrivKey.text) + if(success){ + importedDetails.visible = true + restoreColumn.visible = false + newKey.visible = false + wizardRoot.height = 120 + } + } + } + Text { + id: detailLabel + font.pointSize: 12 + anchors.topMargin: 10 + } + } + } + Column { + id: importedDetails + visible: false + Text { + text: "<b>Your account has been imported. Please close the application and restart it again to let the changes take effect.</b>" + wrapMode: Text.WordWrap + width: 460 + } + } + Column { + spacing: 5 + id: newDetailsColumn + visible: false + Text { + font.pointSize: 14 + text: "Your account details" + } + Label { + text: "Address" + } + TextField { + id: addressInput + readOnly:true + width: 480 + } + Label { + text: "Private key" + } + TextField { + id: privkeyInput + readOnly:true + width: 480 + } + Label { + text: "Mnemonic words" + } + TextField { + id: mnemonicInput + readOnly:true + width: 480 + } + Label { + text: "<b>A new account has been created. Please take the time to write down the <i>24 words</i>. You can use those to restore your account at a later date.</b>" + wrapMode: Text.WordWrap + width: 480 + } + Label { + text: "Please restart the application once you have completed the steps above." + wrapMode: Text.WordWrap + width: 480 + } + } + + } + Button { + anchors.right: parent.right + anchors.bottom: parent.bottom + anchors.rightMargin: 10 + anchors.bottomMargin: 10 + id: newKey + text: "I don't have an account yet" + onClicked: { + var res = lib.createAndSetPrivKey() + mnemonicInput.text = res[0] + addressInput.text = res[1] + privkeyInput.text = res[2] + + // Hide restore + restoreColumn.visible = false + + // Show new details + newDetailsColumn.visible = true + newKey.visible = false + } + } +} diff --git a/ethereal/assets/qml/muted.qml b/ethereal/assets/qml/muted.qml new file mode 100644 index 000000000..fac8267c4 --- /dev/null +++ b/ethereal/assets/qml/muted.qml @@ -0,0 +1,74 @@ +import QtQuick 2.0 +import QtWebKit 3.0 +import QtWebKit.experimental 1.0 +import QtQuick.Controls 1.0; +import QtQuick.Layouts 1.0; +import QtQuick.Window 2.1; +import Ethereum 1.0 + +ApplicationWindow { + id: window + title: "muted" + width: 900 + height: 600 + minimumHeight: 300 + + property alias url: webView.url + property alias webView: webView + + + Item { + id: root + anchors.fill: parent + WebView { + objectName: "webView" + id: webView + anchors { + top: root.top + right: root.right + left: root.left + bottom: root.bottom + //bottom: sizeGrip.top + } + + experimental.preferences.javascriptEnabled: true + experimental.preferences.navigatorQtObjectEnabled: true + experimental.onMessageReceived: { + var data = JSON.parse(message.data) + + switch(data.call) { + case "log": + console.log.apply(this, data.args) + break; + } + } + function postData(seed, data) { + webview.experimental.postMessage(JSON.stringify({data: data, _seed: seed})) + } + function postEvent(event, data) { + webview.experimental.postMessage(JSON.stringify({data: data, _event: event})) + } + } + + /* + Rectangle { + id: sizeGrip + color: "gray" + height: 5 + anchors { + left: root.left + right: root.right + } + y: Math.round(root.height * 2 / 3) + + MouseArea { + anchors.fill: parent + drag.target: sizeGrip + drag.minimumY: 0 + drag.maximumY: root.height - sizeGrip.height + drag.axis: Drag.YAxis + } + } + */ + } +} diff --git a/ethereal/assets/qml/test_app.qml b/ethereal/assets/qml/test_app.qml new file mode 100644 index 000000000..c69587839 --- /dev/null +++ b/ethereal/assets/qml/test_app.qml @@ -0,0 +1,70 @@ +import QtQuick 2.0 +import QtQuick.Controls 1.0; +import QtQuick.Layouts 1.0; +import Ethereum 1.0 + +QmlApp { + minimumWidth: 350 + maximumWidth: 350 + maximumHeight: 80 + minimumHeight: 80 + + title: "Generic Coin" + + property string contractAddr: "f299f6c74515620e4c4cd8fe3d205b5c4f2e25c8" + property string addr: "2ef47100e0787b915105fd5e3f4ff6752079d5cb" + + Component.onCompleted: { + eth.watch(contractAddr, addr) + eth.watch(addr, contractAddr) + setAmount() + } + + function onStorageChangeCb(storageObject) { + setAmount() + } + + function setAmount(){ + var state = eth.getStateObject(contractAddr) + var storage = state.getStorage(addr) + amountLabel.text = storage + } + Column { + spacing: 5 + Row { + spacing: 20 + Label { + id: genLabel + text: "Generic coin balance:" + } + Label { + id: amountLabel + } + } + Row { + spacing: 20 + TextField { + id: address + placeholderText: "Address" + } + TextField { + id: amount + placeholderText: "Amount" + } + } + Button { + text: "Send coins" + onClicked: { + var privKey = eth.getKey().privateKey + if(privKey){ + var result = eth.transact(privKey, contractAddr, 0,"100000","250", "0x" + address.text + "\n" + amount.text) + resultTx.text = result.hash + } + } + } + Label { + id: resultTx + } + } + +} diff --git a/ethereal/assets/qml/transactions.qml b/ethereal/assets/qml/transactions.qml new file mode 100644 index 000000000..e9a035a85 --- /dev/null +++ b/ethereal/assets/qml/transactions.qml @@ -0,0 +1,9 @@ +import QtQuick 2.0 +import QtQuick.Controls 1.0; +import QtQuick.Layouts 1.0; + +Rectangle { + id: transactionView + visible: false + Text { text: "TX VIEW" } +} diff --git a/ethereal/assets/qml/wallet.qml b/ethereal/assets/qml/wallet.qml new file mode 100644 index 000000000..84f8fd5cf --- /dev/null +++ b/ethereal/assets/qml/wallet.qml @@ -0,0 +1,1075 @@ +import QtQuick 2.0 +import QtQuick.Controls 1.0; +import QtQuick.Layouts 1.0; +import QtQuick.Dialogs 1.0; +import QtQuick.Window 2.1; +import QtQuick.Controls.Styles 1.1 +import Ethereum 1.0 + + +ApplicationWindow { + id: root + + property alias miningButtonText: miningButton.text + + width: 900 + height: 600 + minimumHeight: 300 + + title: "Ethereal" + + MenuBar { + Menu { + title: "File" + MenuItem { + text: "Import App" + shortcut: "Ctrl+o" + onTriggered: openAppDialog.open() + } + } + + Menu { + title: "Developer" + MenuItem { + text: "Debugger" + shortcut: "Ctrl+d" + onTriggered: ui.startDebugger() + } + } + + Menu { + title: "Network" + MenuItem { + text: "Add Peer" + shortcut: "Ctrl+p" + onTriggered: { + addPeerWin.visible = true + } + } + MenuItem { + text: "Show Peers" + shortcut: "Ctrl+e" + onTriggered: { + peerWindow.visible = true + } + } + } + + Menu { + title: "Help" + MenuItem { + text: "About" + onTriggered: { + aboutWin.visible = true + } + } + } + + } + + + property var blockModel: ListModel { + id: blockModel + } + + function setView(view) { + networkView.visible = false + historyView.visible = false + newTxView.visible = false + infoView.visible = false + view.visible = true + //root.title = "Ethereal - " = view.title + } + + SplitView { + anchors.fill: parent + resizing: false + + Rectangle { + id: menu + Layout.minimumWidth: 80 + Layout.maximumWidth: 80 + anchors.bottom: parent.bottom + anchors.top: parent.top + //color: "#D9DDE7" + color: "#252525" + + ColumnLayout { + y: 50 + anchors.left: parent.left + anchors.right: parent.right + height: 200 + Image { + source: ui.assetPath("tx.png") + anchors.horizontalCenter: parent.horizontalCenter + MouseArea { + anchors.fill: parent + onClicked: { + setView(historyView) + } + } + } + Image { + source: ui.assetPath("new.png") + anchors.horizontalCenter: parent.horizontalCenter + MouseArea { + anchors.fill: parent + onClicked: { + setView(newTxView) + } + } + } + Image { + source: ui.assetPath("net.png") + anchors.horizontalCenter: parent.horizontalCenter + MouseArea { + anchors.fill: parent + onClicked: { + setView(networkView) + } + } + } + + Image { + source: ui.assetPath("heart.png") + anchors.horizontalCenter: parent.horizontalCenter + MouseArea { + anchors.fill: parent + onClicked: { + setView(infoView) + } + } + } + } + } + + Rectangle { + id: mainView + color: "#00000000" + anchors.right: parent.right + anchors.left: menu.right + anchors.bottom: parent.bottom + anchors.top: parent.top + + property var txModel: ListModel { + id: txModel + } + + Rectangle { + id: historyView + anchors.fill: parent + + property var title: "Transactions" + TableView { + id: txTableView + anchors.fill: parent + TableViewColumn{ role: "inout" ; title: "" ; width: 40 } + TableViewColumn{ role: "value" ; title: "Value" ; width: 100 } + TableViewColumn{ role: "address" ; title: "Address" ; width: 430 } + TableViewColumn{ role: "contract" ; title: "Contract" ; width: 100 } + + model: txModel + } + } + + Rectangle { + id: newTxView + property var title: "New transaction" + visible: false + anchors.fill: parent + color: "#00000000" + /* + TabView{ + anchors.fill: parent + anchors.rightMargin: 5 + anchors.leftMargin: 5 + anchors.topMargin: 5 + anchors.bottomMargin: 5 + id: newTransactionTab + Component.onCompleted:{ + addTab("Simple send", newTransaction) + addTab("Contracts", newContract) + } + } + */ + Component.onCompleted: { + newContract.createObject(newTxView) + } + } + + Rectangle { + id: networkView + property var title: "Network" + visible: false + anchors.fill: parent + + TableView { + id: blockTable + width: parent.width + anchors.top: parent.top + anchors.bottom: parent.bottom + TableViewColumn{ role: "number" ; title: "#" ; width: 100 } + TableViewColumn{ role: "hash" ; title: "Hash" ; width: 560 } + TableViewColumn{ role: "txAmount" ; title: "Tx amount" ; width: 100 } + + model: blockModel + + onDoubleClicked: { + popup.visible = true + popup.setDetails(blockModel.get(row)) + } + } + + } + + Rectangle { + id: infoView + property var title: "Information" + visible: false + color: "#00000000" + anchors.fill: parent + + Column { + spacing: 3 + anchors.fill: parent + anchors.topMargin: 5 + anchors.leftMargin: 5 + + Label { + id: addressLabel + text: "Address" + } + TextField { + text: pub.getKey().address + width: 500 + } + + Label { + text: "Client ID" + } + TextField { + text: eth.clientId() + onTextChanged: { + eth.changeClientId(text) + } + } + } + + property var addressModel: ListModel { + id: addressModel + } + TableView { + id: addressView + width: parent.width - 200 + height: 200 + anchors.bottom: logLayout.top + TableViewColumn{ role: "name"; title: "name" } + TableViewColumn{ role: "address"; title: "address"; width: 300} + + model: addressModel + } + + Rectangle { + anchors.top: addressView.top + anchors.left: addressView.right + anchors.leftMargin: 20 + + TextField { + placeholderText: "Name to register" + id: nameToReg + width: 150 + } + + Button { + anchors.top: nameToReg.bottom + text: "Register" + MouseArea{ + anchors.fill: parent + onClicked: { + eth.registerName(nameToReg.text) + nameToReg.text = "" + } + } + } + } + + + property var logModel: ListModel { + id: logModel + } + RowLayout { + id: logLayout + width: parent.width + height: 200 + anchors.bottom: parent.bottom + TableView { + id: logView + headerVisible: false + anchors { + right: logLevelSlider.left + left: parent.left + bottom: parent.bottom + top: parent.top + } + + TableViewColumn{ role: "description" ; title: "log" } + + model: logModel + } + + Slider { + id: logLevelSlider + value: eth.getLogLevelInt() + anchors { + right: parent.right + top: parent.top + bottom: parent.bottom + + rightMargin: 5 + leftMargin: 5 + topMargin: 5 + bottomMargin: 5 + } + + orientation: Qt.Vertical + maximumValue: 5 + stepSize: 1 + + onValueChanged: { + eth.setLogLevel(value) + } + } + } + } + + /* + signal addPlugin(string name) + Component { + id: pluginWindow + Rectangle { + anchors.fill: parent + Label { + id: pluginTitle + anchors.centerIn: parent + text: "Hello world" + } + Component.onCompleted: setView(this) + } + } + + onAddPlugin: { + var pluginWin = pluginWindow.createObject(mainView) + console.log(pluginWin) + pluginWin.pluginTitle.text = "Test" + } + */ + } + } + + FileDialog { + id: openAppDialog + title: "Open QML Application" + onAccepted: { + //ui.open(openAppDialog.fileUrl.toString()) + //ui.openHtml(Qt.resolvedUrl(ui.assetPath("test.html"))) + var path = openAppDialog.fileUrl.toString() + console.log(path) + var ext = path.split('.').pop() + console.log(ext) + if(ext == "html" || ext == "htm") { + ui.openHtml(path) + }else if(ext == "qml"){ + ui.openQml(path) + } + } + } + + statusBar: StatusBar { + height: 30 + RowLayout { + Button { + id: miningButton + onClicked: { + eth.toggleMining() + } + text: "Start Mining" + } + + Button { + property var enabled: true + id: debuggerWindow + onClicked: { + ui.startDebugger() + } + text: "Debugger" + } + + Button { + id: importAppButton + anchors.left: debuggerWindow.right + anchors.leftMargin: 5 + onClicked: openAppDialog.open() + text: "Import App" + } + + Label { + anchors.left: importAppButton.right + anchors.leftMargin: 5 + id: walletValueLabel + } + } + + Label { + y: 7 + anchors.right: peerImage.left + anchors.rightMargin: 5 + id: peerLabel + font.pixelSize: 8 + text: "0 / 0" + } + Image { + y: 7 + id: peerImage + anchors.right: parent.right + width: 10; height: 10 + MouseArea { + onDoubleClicked: peerWindow.visible = true + anchors.fill: parent + } + source: ui.assetPath("network.png") + } + } + + Window { + id: popup + visible: false + property var block + width: root.width + height: 300 + Component{ + id: blockDetailsDelegate + Rectangle { + color: "#252525" + width: popup.width + height: 150 + Column { + anchors.leftMargin: 10 + anchors.topMargin: 5 + anchors.top: parent.top + anchors.left: parent.left + Text { text: '<h3>Block details</h3>'; color: "#F2F2F2"} + Text { text: '<b>Block number:</b> ' + number; color: "#F2F2F2"} + Text { text: '<b>Hash:</b> ' + hash; color: "#F2F2F2"} + Text { text: '<b>Coinbase:</b> ' + coinbase; color: "#F2F2F2"} + Text { text: '<b>Block found at:</b> ' + prettyTime; color: "#F2F2F2"} + Text { text: '<b>Gas used:</b> ' + gasUsed + " / " + gasLimit; color: "#F2F2F2"} + } + } + } + ListView { + model: singleBlock + delegate: blockDetailsDelegate + anchors.top: parent.top + height: 100 + anchors.leftMargin: 20 + id: listViewThing + Layout.maximumHeight: 40 + } + TableView { + id: txView + anchors.top: listViewThing.bottom + anchors.topMargin: 50 + width: parent.width + + TableViewColumn{width: 90; role: "value" ; title: "Value" } + TableViewColumn{width: 200; role: "hash" ; title: "Hash" } + TableViewColumn{width: 200; role: "sender" ; title: "Sender" } + TableViewColumn{width: 200;role: "address" ; title: "Receiver" } + TableViewColumn{width: 60; role: "gas" ; title: "Gas" } + TableViewColumn{width: 60; role: "gasPrice" ; title: "Gas Price" } + TableViewColumn{width: 60; role: "isContract" ; title: "Contract" } + + model: transactionModel + onClicked: { + var tx = transactionModel.get(row) + if(tx.data) { + popup.showContractData(tx) + }else{ + popup.height = 440 + } + } + } + + function showContractData(tx) { + txDetailsDebugButton.tx = tx + if(tx.createsContract) { + contractData.text = tx.data + contractLabel.text = "<h4> Transaction created contract " + tx.address + "</h4>" + }else{ + contractLabel.text = "<h4> Transaction ran contract " + tx.address + "</h4>" + contractData.text = tx.rawData + } + popup.height = 540 + } + + Rectangle { + id: txDetails + width: popup.width + height: 300 + anchors.left: listViewThing.left + anchors.top: txView.bottom + Label { + text: "<h4>Contract data</h4>" + anchors.top: parent.top + anchors.left: parent.left + id: contractLabel + anchors.leftMargin: 10 + } + Button { + property var tx + id: txDetailsDebugButton + anchors.right: parent.right + anchors.rightMargin: 10 + anchors.top: parent.top + anchors.topMargin: 10 + text: "Debug contract" + onClicked: { + if(tx.createsContract){ + ui.startDbWithCode(tx.rawData) + }else { + ui.startDbWithContractAndData(tx.address, tx.rawData) + } + } + } + TextArea { + id: contractData + text: "Contract" + anchors.top: contractLabel.bottom + anchors.left: parent.left + anchors.bottom: popup.bottom + wrapMode: Text.Wrap + width: parent.width - 30 + height: 80 + anchors.leftMargin: 10 + } + } + property var transactionModel: ListModel { + id: transactionModel + } + property var singleBlock: ListModel { + id: singleBlock + } + function setDetails(block){ + singleBlock.set(0,block) + popup.height = 300 + transactionModel.clear() + if(block.txs != undefined){ + for(var i = 0; i < block.txs.count; ++i) { + transactionModel.insert(0, block.txs.get(i)) + } + if(block.txs.get(0).data){ + popup.showContractData(block.txs.get(0)) + } + } + txView.forceActiveFocus() + } + } + + Window { + id: addPeerWin + visible: false + minimumWidth: 230 + maximumWidth: 230 + maximumHeight: 50 + minimumHeight: 50 + + TextField { + id: addrField + anchors.verticalCenter: parent.verticalCenter + anchors.left: parent.left + anchors.leftMargin: 10 + placeholderText: "address:port" + onAccepted: { + ui.connectToPeer(addrField.text) + addPeerWin.visible = false + } + } + Button { + anchors.left: addrField.right + anchors.verticalCenter: parent.verticalCenter + anchors.leftMargin: 5 + text: "Add" + onClicked: { + ui.connectToPeer(addrField.text) + addPeerWin.visible = false + } + } + Component.onCompleted: { + addrField.focus = true + } + } + + Window { + id: aboutWin + visible: false + title: "About" + minimumWidth: 350 + maximumWidth: 350 + maximumHeight: 200 + minimumHeight: 200 + + Image { + id: aboutIcon + height: 150 + width: 150 + fillMode: Image.PreserveAspectFit + smooth: true + source: ui.assetPath("facet.png") + x: 10 + y: 10 + } + + Text { + anchors.left: aboutIcon.right + anchors.leftMargin: 10 + font.pointSize: 12 + text: "<h2>Ethereal</h2><br><h3>Development</h3>Jeffrey Wilcke<br>Maran Hidskes<br>" + } + } + + function addDebugMessage(message){ + debuggerLog.append({value: message}) + } + + function addAddress(address) { + addressModel.append({name: address.name, address: address.address}) + } + function clearAddress() { + addressModel.clear() + } + + function loadPlugin(name) { + console.log("Loading plugin" + name) + mainView.addPlugin(name) + } + + function setWalletValue(value) { + walletValueLabel.text = value + } + + function addTx(tx, inout) { + var isContract + if (tx.contract == true){ + isContract = "Yes" + }else{ + isContract = "No" + } + + var address; + if(inout == "recv") { + address = tx.sender; + } else { + address = tx.address; + } + txModel.insert(0, {inout: inout, hash: tx.hash, address: address, value: tx.value, contract: isContract}) + } + + function addBlock(block, initial) { + var txs = JSON.parse(block.transactions); + var amount = 0 + if(initial == undefined){ + initial = false + } + + if(txs != null){ + amount = txs.length + } + + if(initial){ + blockModel.append({number: block.number, gasLimit: block.gasLimit, gasUsed: block.gasUsed, coinbase: block.coinbase, hash: block.hash, txs: txs, txAmount: amount, time: block.time, prettyTime: convertToPretty(block.time)}) + }else{ + blockModel.insert(0, {number: block.number, gasLimit: block.gasLimit, gasUsed: block.gasUsed, coinbase: block.coinbase, hash: block.hash, txs: txs, txAmount: amount, time: block.time, prettyTime: convertToPretty(block.time)}) + } + } + + function addLog(str) { + // Remove first item once we've reached max log items + if(logModel.count > 250) { + logModel.remove(0) + } + + if(str.len != 0) { + if(logView.flickableItem.atYEnd) { + logModel.append({description: str}) + logView.positionViewAtRow(logView.rowCount - 1, ListView.Contain) + } else { + logModel.append({description: str}) + } + } + + } + + function setPeers(text) { + peerLabel.text = text + } + + function addPeer(peer) { + // We could just append the whole peer object but it cries if you try to alter them + peerModel.append({ip: peer.ip, port: peer.port, lastResponse:timeAgo(peer.lastSend), latency: peer.latency, version: peer.version}) + } + + function resetPeers(){ + peerModel.clear() + } + + function timeAgo(unixTs){ + var lapsed = (Date.now() - new Date(unixTs*1000)) / 1000 + return (lapsed + " seconds ago") + } + function convertToPretty(unixTs){ + var a = new Date(unixTs*1000); + var months = ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec']; + var year = a.getFullYear(); + var month = months[a.getMonth()]; + var date = a.getDate(); + var hour = a.getHours(); + var min = a.getMinutes(); + var sec = a.getSeconds(); + var time = date+' '+month+' '+year+' '+hour+':'+min+':'+sec ; + return time; + } + // ****************************************** + // Windows + // ****************************************** + Window { + id: peerWindow + height: 200 + width: 700 + Rectangle { + anchors.fill: parent + property var peerModel: ListModel { + id: peerModel + } + TableView { + anchors.fill: parent + id: peerTable + model: peerModel + TableViewColumn{width: 100; role: "ip" ; title: "IP" } + TableViewColumn{width: 60; role: "port" ; title: "Port" } + TableViewColumn{width: 140; role: "lastResponse"; title: "Last event" } + TableViewColumn{width: 100; role: "latency"; title: "Latency" } + TableViewColumn{width: 260; role: "version" ; title: "Version" } + } + } + } + + // ******************************************* + // Components + // ******************************************* + + // New Contract component + Component { + id: newContract + Column { + id: mainContractColumn + anchors.fill: parent + function contractFormReady(){ + if(codeView.text.length > 0 && txValue.text.length > 0 && txGas.text.length > 0 && txGasPrice.length > 0) { + txButton.state = "READY" + }else{ + txButton.state = "NOTREADY" + } + } + states: [ + State{ + name: "ERROR" + PropertyChanges { target: txResult; visible:true} + PropertyChanges { target: codeView; visible:true} + }, + State { + name: "DONE" + PropertyChanges { target: txValue; visible:false} + PropertyChanges { target: txGas; visible:false} + PropertyChanges { target: txGasPrice; visible:false} + PropertyChanges { target: codeView; visible:false} + PropertyChanges { target: txButton; visible:false} + PropertyChanges { target: txDataLabel; visible:false} + PropertyChanges { target: atLabel; visible:false} + PropertyChanges { target: txFuelRecipient; visible:false} + + PropertyChanges { target: txResult; visible:true} + PropertyChanges { target: txOutput; visible:true} + PropertyChanges { target: newTxButton; visible:true} + }, + State { + name: "SETUP" + PropertyChanges { target: txValue; visible:true; text: ""} + PropertyChanges { target: txGas; visible:true; text: ""} + PropertyChanges { target: txGasPrice; visible:true; text: ""} + PropertyChanges { target: codeView; visible:true; text: ""} + PropertyChanges { target: txButton; visible:true} + PropertyChanges { target: txDataLabel; visible:true} + + PropertyChanges { target: txResult; visible:false} + PropertyChanges { target: txOutput; visible:false} + PropertyChanges { target: newTxButton; visible:false} + } + ] + width: 400 + spacing: 5 + anchors.left: parent.left + anchors.top: parent.top + anchors.leftMargin: 5 + anchors.topMargin: 5 + + ListModel { + id: denomModel + ListElement { text: "Wei" ; zeros: "" } + ListElement { text: "Ada" ; zeros: "000" } + ListElement { text: "Babbage" ; zeros: "000000" } + ListElement { text: "Shannon" ; zeros: "000000000" } + ListElement { text: "Szabo" ; zeros: "000000000000" } + ListElement { text: "Finney" ; zeros: "000000000000000" } + ListElement { text: "Ether" ; zeros: "000000000000000000" } + ListElement { text: "Einstein" ;zeros: "000000000000000000000" } + ListElement { text: "Douglas" ; zeros: "000000000000000000000000000000000000000000" } + } + + + TextField { + id: txFuelRecipient + placeholderText: "Address / Name or empty for contract" + //validator: RegExpValidator { regExp: /[a-f0-9]{40}/ } + width: 400 + } + + RowLayout { + TextField { + id: txValue + width: 222 + placeholderText: "Amount" + validator: RegExpValidator { regExp: /\d*/ } + onTextChanged: { + contractFormReady() + } + } + + ComboBox { + id: valueDenom + currentIndex: 6 + model: denomModel + } + } + + RowLayout { + TextField { + id: txGas + width: 50 + validator: RegExpValidator { regExp: /\d*/ } + placeholderText: "Gas" + text: "500" + /* + onTextChanged: { + contractFormReady() + } + */ + } + Label { + id: atLabel + text: "@" + } + + TextField { + id: txGasPrice + width: 200 + placeholderText: "Gas price" + text: "10" + validator: RegExpValidator { regExp: /\d*/ } + /* + onTextChanged: { + contractFormReady() + } + */ + } + + ComboBox { + id: gasDenom + currentIndex: 4 + model: denomModel + } + } + + Label { + id: txDataLabel + text: "Data" + } + + TextArea { + id: codeView + height: 300 + anchors.topMargin: 5 + width: 400 + onTextChanged: { + contractFormReady() + } + } + + + Button { + id: txButton + /* enabled: false */ + states: [ + State { + name: "READY" + PropertyChanges { target: txButton; /*enabled: true*/} + }, + State { + name: "NOTREADY" + PropertyChanges { target: txButton; /*enabled:false*/} + } + ] + text: "Send" + onClicked: { + var value = txValue.text + denomModel.get(valueDenom.currentIndex).zeros; + var gasPrice = txGasPrice.text + denomModel.get(gasDenom.currentIndex).zeros; + var res = eth.create(txFuelRecipient.text, value, txGas.text, gasPrice, codeView.text) + if(res[1]) { + txResult.text = "Your contract <b>could not</b> be send over the network:\n<b>" + txResult.text += res[1].error() + txResult.text += "</b>" + mainContractColumn.state = "ERROR" + } else { + txResult.text = "Your transaction has been submitted:\n" + txOutput.text = res[0].address + mainContractColumn.state = "DONE" + } + } + } + Text { + id: txResult + visible: false + } + TextField { + id: txOutput + visible: false + width: 530 + } + Button { + id: newTxButton + visible: false + text: "Create a new transaction" + onClicked: { + this.visible = false + txResult.text = "" + txOutput.text = "" + mainContractColumn.state = "SETUP" + } + } + } + } + // New Transaction component + Component { + id: newTransaction + Column { + id: simpleSendColumn + states: [ + State{ + name: "ERROR" + }, + State { + name: "DONE" + PropertyChanges { target: txSimpleValue; visible:false} + PropertyChanges { target: txSimpleRecipient; visible:false} + PropertyChanges { target:newSimpleTxButton; visible:false} + + PropertyChanges { target: txSimpleResult; visible:true} + PropertyChanges { target: txSimpleOutput; visible:true} + PropertyChanges { target:newSimpleTxButton; visible:true} + }, + State { + name: "SETUP" + PropertyChanges { target: txSimpleValue; visible:true; text: ""} + PropertyChanges { target: txSimpleRecipient; visible:true; text: ""} + PropertyChanges { target: txSimpleButton; visible:true} + PropertyChanges { target:newSimpleTxButton; visible:false} + } + ] + spacing: 5 + anchors.leftMargin: 5 + anchors.topMargin: 5 + anchors.top: parent.top + anchors.left: parent.left + + function checkFormState(){ + if(txSimpleRecipient.text.length == 40 && txSimpleValue.text.length > 0) { + txSimpleButton.state = "READY" + }else{ + txSimpleButton.state = "NOTREADY" + } + } + + TextField { + id: txSimpleRecipient + placeholderText: "Recipient address" + Layout.fillWidth: true + //validator: RegExpValidator { regExp: /[a-f0-9]{40}/ } + width: 530 + onTextChanged: { checkFormState() } + } + TextField { + id: txSimpleValue + width: 200 + placeholderText: "Amount" + anchors.rightMargin: 5 + validator: RegExpValidator { regExp: /\d*/ } + onTextChanged: { checkFormState() } + } + Button { + id: txSimpleButton + /*enabled: false*/ + states: [ + State { + name: "READY" + PropertyChanges { target: txSimpleButton; /*enabled: true*/} + }, + State { + name: "NOTREADY" + PropertyChanges { target: txSimpleButton; /*enabled: false*/} + } + ] + text: "Send" + onClicked: { + //this.enabled = false + var res = eth.transact(txSimpleRecipient.text, txSimpleValue.text, "500", "1000000", "") + if(res[1]) { + txSimpleResult.text = "There has been an error broadcasting your transaction:" + res[1].error() + } else { + txSimpleResult.text = "Your transaction has been broadcasted over the network.\nYour transaction id is:" + txSimpleOutput.text = res[0].hash + this.visible = false + simpleSendColumn.state = "DONE" + } + } + } + Text { + id: txSimpleResult + visible: false + + } + TextField { + id: txSimpleOutput + visible: false + width: 530 + } + Button { + id: newSimpleTxButton + visible: false + text: "Create an other transaction" + onClicked: { + this.visible = false + simpleSendColumn.state = "SETUP" + } + } + } + } +} diff --git a/ethereal/assets/qml/webapp.qml b/ethereal/assets/qml/webapp.qml new file mode 100644 index 000000000..63927f0eb --- /dev/null +++ b/ethereal/assets/qml/webapp.qml @@ -0,0 +1,246 @@ +import QtQuick 2.0 +import QtWebKit 3.0 +import QtWebKit.experimental 1.0 +import QtQuick.Controls 1.0; +import QtQuick.Layouts 1.0; +import QtQuick.Window 2.1; +import Ethereum 1.0 + +ApplicationWindow { + id: window + title: "Ethereum" + width: 900 + height: 600 + minimumHeight: 300 + + property alias url: webview.url + property alias webView: webview + + Item { + objectName: "root" + id: root + anchors.fill: parent + state: "inspectorShown" + + WebView { + objectName: "webView" + id: webview + anchors.fill: parent + /* + anchors { + left: parent.left + right: parent.right + bottom: sizeGrip.top + top: parent.top + } + */ + onTitleChanged: { window.title = title } + experimental.preferences.javascriptEnabled: true + experimental.preferences.navigatorQtObjectEnabled: true + experimental.preferences.developerExtrasEnabled: true + experimental.userScripts: [ui.assetPath("ext/pre.js"), ui.assetPath("ext/big.js"), ui.assetPath("ext/string.js"), ui.assetPath("ext/ethereum.js")] + experimental.onMessageReceived: { + console.log("[onMessageReceived]: ", message.data) + // TODO move to messaging.js + var data = JSON.parse(message.data) + + try { + switch(data.call) { + case "getCoinBase": + postData(data._seed, eth.getCoinBase()) + + break + case "getIsListening": + postData(data._seed, eth.getIsListening()) + + break + case "getIsMining": + postData(data._seed, eth.getIsMining()) + + break + case "getPeerCount": + postData(data._seed, eth.getPeerCount()) + + break + + case "getTxCountAt": + require(1) + postData(data._seed, eth.getTxCountAt(data.args[0])) + + break + case "getBlockByNumber": + var block = eth.getBlock(data.args[0]) + postData(data._seed, block) + + break + case "getBlockByHash": + var block = eth.getBlock(data.args[0]) + postData(data._seed, block) + + break + case "transact": + require(5) + + var tx = eth.transact(data.args[0], data.args[1], data.args[2],data.args[3],data.args[4],data.args[5]) + postData(data._seed, tx) + + break + case "create": + postData(data._seed, null) + + break + case "getStorage": + require(2); + + var stateObject = eth.getStateObject(data.args[0]) + var storage = stateObject.getStorage(data.args[1]) + postData(data._seed, storage) + + break + case "getStateKeyVals": + require(1); + var stateObject = eth.getStateObject(data.args[0]).stateKeyVal(true) + postData(data._seed,stateObject) + + break + case "getTransactionsFor": + require(1); + var txs = eth.getTransactionsFor(data.args[0], true) + postData(data._seed, txs) + + break + case "getBalance": + require(1); + + postData(data._seed, eth.getStateObject(data.args[0]).value()); + + break + case "getKey": + var key = eth.getKey().privateKey; + + postData(data._seed, key) + break + case "watch": + require(1) + eth.watch(data.args[0], data.args[1]); + break + case "disconnect": + require(1) + postData(data._seed, null) + break; + case "set": + console.log("'Set' has been depcrecated") + /* + for(var key in data.args) { + if(webview.hasOwnProperty(key)) { + window[key] = data.args[key]; + } + } + */ + break; + case "getSecretToAddress": + require(1) + postData(data._seed, eth.secretToAddress(data.args[0])) + break; + case "debug": + console.log(data.args[0]); + break; + } + } catch(e) { + console.log(data.call + ": " + e) + + postData(data._seed, null); + } + } + + function require(args, num) { + if(args.length < num) { + throw("required argument count of "+num+" got "+args.length); + } + } + function postData(seed, data) { + webview.experimental.postMessage(JSON.stringify({data: data, _seed: seed})) + } + function postEvent(event, data) { + webview.experimental.postMessage(JSON.stringify({data: data, _event: event})) + } + + function onNewBlockCb(block) { + postEvent("block:new", block) + } + function onObjectChangeCb(stateObject) { + postEvent("object:"+stateObject.address(), stateObject) + } + function onStorageChangeCb(storageObject) { + var ev = ["storage", storageObject.stateAddress, storageObject.address].join(":"); + postEvent(ev, [storageObject.address, storageObject.value]) + } + } + Rectangle { + id: toggleInspector + color: "#bcbcbc" + visible: true + height: 12 + width: 12 + anchors { + right: root.right + } + MouseArea { + onClicked: { + if(inspector.visible == true){ + inspector.visible = false + }else{ + inspector.visible = true + } + } + onDoubleClicked: { + console.log('refreshing') + webView.reload() + } + anchors.fill: parent + } + } + + Rectangle { + id: sizeGrip + color: "gray" + visible: false + height: 10 + anchors { + left: root.left + right: root.right + } + y: Math.round(root.height * 2 / 3) + + MouseArea { + anchors.fill: parent + drag.target: sizeGrip + drag.minimumY: 0 + drag.maximumY: root.height + drag.axis: Drag.YAxis + } + } + + WebView { + id: inspector + visible: false + url: webview.experimental.remoteInspectorUrl + anchors { + left: root.left + right: root.right + top: sizeGrip.bottom + bottom: root.bottom + } + } + + states: [ + State { + name: "inspectorShown" + PropertyChanges { + target: inspector + url: webview.experimental.remoteInspectorUrl + } + } + ] + } +} diff --git a/ethereal/assets/samplecoin/bootstrap-theme.min.css b/ethereal/assets/samplecoin/bootstrap-theme.min.css new file mode 100755 index 000000000..8dee07209 --- /dev/null +++ b/ethereal/assets/samplecoin/bootstrap-theme.min.css @@ -0,0 +1,7 @@ +/*! + * Bootstrap v3.1.1 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\ No newline at end of file diff --git a/ethereal/assets/samplecoin/icon.png b/ethereal/assets/samplecoin/icon.png Binary files differnew file mode 100644 index 000000000..73e0ceb75 --- /dev/null +++ b/ethereal/assets/samplecoin/icon.png diff --git a/ethereal/assets/samplecoin/samplecoin.css b/ethereal/assets/samplecoin/samplecoin.css new file mode 100644 index 000000000..bc4e7f53c --- /dev/null +++ b/ethereal/assets/samplecoin/samplecoin.css @@ -0,0 +1,34 @@ +/* Space out content a bit */ +body { + padding-top: 20px; + padding-bottom: 20px; +} + +/* Everything but the jumbotron gets side spacing for mobile first + * views */ +.header, +.marketing, +.footer { + padding-right: 15px; + padding-left: 15px; +} + +/* Custom page header */ +.header { + border-bottom: 1px solid #e5e5e5; +} +/* Make the masthead heading the same height as the navigation */ +.header h3 { + padding-bottom: 19px; + margin-top: 0; + margin-bottom: 0; + line-height: 40px; +} + +.jumbotron { + text-align: center; + border-bottom: 1px solid #e5e5e5; + + margin: 0 auto; + width: 300px; +} diff --git a/ethereal/assets/samplecoin/samplecoin.html b/ethereal/assets/samplecoin/samplecoin.html new file mode 100644 index 000000000..7b63f78e4 --- /dev/null +++ b/ethereal/assets/samplecoin/samplecoin.html @@ -0,0 +1,68 @@ +<html> +<head> +<title>jeffcoin</title> + +<link rel="stylesheet" href="bootstrap.min.css"> +<link rel="stylesheet" href="bootstrap-theme.min.css"> +<link rel="stylesheet" href="samplecoin.css"> +<meta name="viewport" content="minimum-scale=1; maximum-scale=1; initial-scale=1;"> + +<script type="text/javascript"> + +var jefcoinAddr = "22fa3ebce6ef9ca661a960104d3087eec040011e" +var mAddr = "" + +function createTransaction() { + var addr = ("0x" + document.querySelector("#addr").value).pad(32); + var amount = document.querySelector("#amount").value.pad(32); + + var data = (addr + amount).unbin(); + eth.transact(mAddr, jefcoinAddr, 0, "50000", "1000000", data, function(receipt) { + debug("received tx hash:", reciept.address) + }) +} + +function init() { + eth.getKey(function(sec) { + mAddr = sec; + eth.getSecretToAddress(sec, function(addr) { + eth.getStorageAt(jefcoinAddr, addr, function(storage) { + document.querySelector("#current-amount").innerHTML = storage; + }); + + eth.watch(jefcoinAddr, addr, function(addr, value) { + document.querySelector("#current-amount").innerHTML = value + }); + }); + }); +} + +</script> +</head> + +<body onload="init();"> +<div class="container"> + <div class="header"> + <h3 class="text-muted">JeffCoin</h3> + </div> + + <div class="jumbotron "> + <img src="icon.png"> + <div>Amount: <strong id="current-amount"></strong></div> + + <div id="transactions"> + <div class="form-group"> + <input id="addr" class="form-control" type="text" placeholder="Receiver address"></input><br> + <input id="amount" class="form-control" type="text" placeholder="Amount"></input><br> + </div> + + <button class="btn btn-default" onclick="createTransaction();">Send Tx</button> + </div> + </div> +</div> + +<div id="debug" style="border: 1px solid black; min-height: 30px;"></div> + +</body> +</html> + diff --git a/ethereal/assets/tx.png b/ethereal/assets/tx.png Binary files differnew file mode 100644 index 000000000..62204c315 --- /dev/null +++ b/ethereal/assets/tx.png diff --git a/ethereal/assets/util/test.html b/ethereal/assets/util/test.html new file mode 100644 index 000000000..d458e6670 --- /dev/null +++ b/ethereal/assets/util/test.html @@ -0,0 +1,43 @@ +<html> +<head> +<title>Utils</title> +</head> +<body onload="init();"> +<label>Nonce for 2ef47100e0787b915105fd5e3f4ff6752079d5cb</label> +<p id="nonce"></p> + +<label>Connected peers</label> +<p id="peers"></p> + +<label>Is mining</label> +<p id="isMining"></p> + +<label>Is listening</label> +<p id="isListen"></p> + +<label>Coinbase</label> +<p id="coinbase"></p> + +<script type="text/javascript"> + +function init() { + eth.getTxCountAt("2ef47100e0787b915105fd5e3f4ff6752079d5cb", function(nonce){ + document.querySelector("#nonce").innerHTML = nonce; + }) + eth.getPeerCount(function(peerLength){ + document.querySelector("#peers").innerHTML = peerLength; + }) + eth.getIsMining(function(mining){ + document.querySelector("#isMining").innerHTML = mining; + }) + eth.getIsListening(function(listen){ + document.querySelector("#isListen").innerHTML = listen; + }) + eth.getCoinBase(function(address){ + document.querySelector("#coinbase").innerHTML = address; + }) +} +</script> +</body> +</html> + diff --git a/ethereal/flags.go b/ethereal/flags.go new file mode 100644 index 000000000..2c9b3af5f --- /dev/null +++ b/ethereal/flags.go @@ -0,0 +1,99 @@ +package main + +import ( + "bitbucket.org/kardianos/osext" + "flag" + "fmt" + "github.com/ethereum/eth-go/ethlog" + "os" + "os/user" + "path" + "path/filepath" + "runtime" +) + +var Identifier string +var KeyRing string +var KeyStore string +var StartRpc bool +var RpcPort int +var UseUPnP bool +var OutboundPort string +var ShowGenesis bool +var AddPeer string +var MaxPeer int +var GenAddr bool +var UseSeed bool +var SecretFile string +var ExportDir string +var NonInteractive bool +var Datadir string +var LogFile string +var ConfigFile string +var DebugFile string +var LogLevel int + +// flags specific to gui client +var AssetPath string + +func defaultAssetPath() string { + var assetPath string + // If the current working directory is the go-ethereum dir + // assume a debug build and use the source directory as + // asset directory. + pwd, _ := os.Getwd() + if pwd == path.Join(os.Getenv("GOPATH"), "src", "github.com", "ethereum", "go-ethereum", "ethereal") { + assetPath = path.Join(pwd, "assets") + } else { + switch runtime.GOOS { + case "darwin": + // Get Binary Directory + exedir, _ := osext.ExecutableFolder() + assetPath = filepath.Join(exedir, "../Resources") + case "linux": + assetPath = "/usr/share/ethereal" + case "window": + fallthrough + default: + assetPath = "." + } + } + return assetPath +} + +func defaultDataDir() string { + usr, _ := user.Current() + return path.Join(usr.HomeDir, ".ethereal") +} + +var defaultConfigFile = path.Join(defaultDataDir(), "conf.ini") + +func Init() { + flag.Usage = func() { + fmt.Fprintf(os.Stderr, "%s [options] [filename]:\noptions precedence: default < config file < environment variables < command line\n", os.Args[0]) + flag.PrintDefaults() + } + + flag.StringVar(&Identifier, "id", "", "Custom client identifier") + flag.StringVar(&KeyRing, "keyring", "", "identifier for keyring to use") + flag.StringVar(&KeyStore, "keystore", "db", "system to store keyrings: db|file (db)") + flag.StringVar(&OutboundPort, "port", "30303", "listening port") + flag.BoolVar(&UseUPnP, "upnp", false, "enable UPnP support") + flag.IntVar(&MaxPeer, "maxpeer", 10, "maximum desired peers") + flag.IntVar(&RpcPort, "rpcport", 8080, "port to start json-rpc server on") + flag.BoolVar(&StartRpc, "rpc", false, "start rpc server") + flag.BoolVar(&NonInteractive, "y", false, "non-interactive mode (say yes to confirmations)") + flag.BoolVar(&UseSeed, "seed", true, "seed peers") + flag.BoolVar(&GenAddr, "genaddr", false, "create a new priv/pub key") + flag.StringVar(&SecretFile, "import", "", "imports the file given (hex or mnemonic formats)") + flag.StringVar(&ExportDir, "export", "", "exports the session keyring to files in the directory given") + flag.StringVar(&LogFile, "logfile", "", "log file (defaults to standard output)") + flag.StringVar(&Datadir, "datadir", defaultDataDir(), "specifies the datadir to use") + flag.StringVar(&ConfigFile, "conf", defaultConfigFile, "config file") + flag.StringVar(&DebugFile, "debug", "", "debug file (no debugging if not set)") + flag.IntVar(&LogLevel, "loglevel", int(ethlog.InfoLevel), "loglevel: 0-5: silent,error,warn,info,debug,debug detail)") + + flag.StringVar(&AssetPath, "asset_path", defaultAssetPath(), "absolute path to GUI assets directory") + + flag.Parse() +} diff --git a/ethereal/main.go b/ethereal/main.go new file mode 100644 index 000000000..82427f088 --- /dev/null +++ b/ethereal/main.go @@ -0,0 +1,66 @@ +package main + +import ( + "github.com/ethereum/eth-go/ethlog" + "github.com/ethereum/go-ethereum/ethereal/ui" + "github.com/ethereum/go-ethereum/utils" + "github.com/go-qml/qml" + "os" + "runtime" +) + +func main() { + // Leave QT on top at ALL times. Qt Needs to be initialized from the main thread + qml.Init(nil) + + runtime.GOMAXPROCS(runtime.NumCPU()) + + var interrupted = false + utils.RegisterInterrupt(func(os.Signal) { + interrupted = true + }) + + utils.HandleInterrupt() + + // precedence: code-internal flag default < config file < environment variables < command line + Init() // parsing command line + utils.InitConfig(ConfigFile, Datadir, Identifier, "ETH") + + utils.InitDataDir(Datadir) + + utils.InitLogging(Datadir, LogFile, LogLevel, DebugFile) + + db := utils.NewDatabase() + + keyManager := utils.NewKeyManager(KeyStore, Datadir, db) + + // create, import, export keys + utils.KeyTasks(keyManager, KeyRing, GenAddr, SecretFile, ExportDir, NonInteractive) + + ethereum := utils.NewEthereum(db, keyManager, UseUPnP, OutboundPort, MaxPeer) + + if ShowGenesis { + utils.ShowGenesis(ethereum) + } + + if StartRpc { + utils.StartRpc(ethereum, RpcPort) + } + + gui := ethui.New(ethereum, KeyRing, LogLevel) + + utils.RegisterInterrupt(func(os.Signal) { + gui.Stop() + }) + utils.StartEthereum(ethereum, UseSeed) + // gui blocks the main thread + gui.Start(AssetPath) + // we need to run the interrupt callbacks in case gui is closed + // this skips if we got here by actual interrupt stopping the GUI + if !interrupted { + utils.RunInterruptCallbacks(os.Interrupt) + } + // this blocks the thread + ethereum.WaitForShutdown() + ethlog.Flush() +} diff --git a/ethereal/ui/debugger.go b/ethereal/ui/debugger.go new file mode 100644 index 000000000..5ad1b4a2c --- /dev/null +++ b/ethereal/ui/debugger.go @@ -0,0 +1,234 @@ +package ethui + +import ( + "fmt" + "github.com/ethereum/eth-go/ethchain" + "github.com/ethereum/eth-go/ethutil" + "github.com/go-qml/qml" + "math/big" + "strings" +) + +type DebuggerWindow struct { + win *qml.Window + engine *qml.Engine + lib *UiLib + Db *Debugger +} + +func NewDebuggerWindow(lib *UiLib) *DebuggerWindow { + engine := qml.NewEngine() + component, err := engine.LoadFile(lib.AssetPath("debugger/debugger.qml")) + if err != nil { + fmt.Println(err) + + return nil + } + + win := component.CreateWindow(nil) + db := &Debugger{win, make(chan bool), make(chan bool), true, false, true} + + return &DebuggerWindow{engine: engine, win: win, lib: lib, Db: db} +} + +func (self *DebuggerWindow) Show() { + context := self.engine.Context() + context.SetVar("dbg", self) + + go func() { + self.win.Show() + self.win.Wait() + }() +} + +func (self *DebuggerWindow) SetCode(code string) { + self.win.Set("codeText", code) +} + +func (self *DebuggerWindow) SetData(data string) { + self.win.Set("dataText", data) +} +func (self *DebuggerWindow) SetAsm(data string) { + dis := ethchain.Disassemble(ethutil.Hex2Bytes(data)) + for _, str := range dis { + self.win.Root().Call("setAsm", str) + } +} + +func (self *DebuggerWindow) Debug(valueStr, gasStr, gasPriceStr, scriptStr, dataStr string) { + if !self.Db.done { + self.Db.Q <- true + } + self.Db.breakOnInstr = self.win.Root().ObjectByName("breakEachLine").Bool("checked") + + defer func() { + if r := recover(); r != nil { + self.Logf("compile FAULT: %v", r) + } + }() + + data := ethutil.StringToByteFunc(dataStr, func(s string) (ret []byte) { + slice := strings.Split(dataStr, "\n") + for _, dataItem := range slice { + d := ethutil.FormatData(dataItem) + ret = append(ret, d...) + } + return + }) + + var err error + script := ethutil.StringToByteFunc(scriptStr, func(s string) (ret []byte) { + ret, err = ethutil.Compile(s) + return + }) + + if err != nil { + self.Logln(err) + + return + } + + dis := ethchain.Disassemble(script) + self.win.Root().Call("clearAsm") + self.win.Root().Call("clearLog") + + for _, str := range dis { + self.win.Root().Call("setAsm", str) + } + + var ( + gas = ethutil.Big(gasStr) + gasPrice = ethutil.Big(gasPriceStr) + value = ethutil.Big(valueStr) + // Contract addr as test address + keyPair = self.lib.eth.KeyManager().KeyPair() + callerTx = ethchain.NewContractCreationTx(ethutil.Big(valueStr), gas, gasPrice, script) + ) + callerTx.Sign(keyPair.PrivateKey) + + state := self.lib.eth.BlockChain().CurrentBlock.State() + account := self.lib.eth.StateManager().TransState().GetAccount(keyPair.Address()) + contract := ethchain.MakeContract(callerTx, state) + contract.Amount = value + callerClosure := ethchain.NewClosure(account, contract, script, state, gas, gasPrice) + + block := self.lib.eth.BlockChain().CurrentBlock + vm := ethchain.NewVm(state, self.lib.eth.StateManager(), ethchain.RuntimeVars{ + Block: block, + Origin: account.Address(), + BlockNumber: block.Number, + PrevHash: block.PrevHash, + Coinbase: block.Coinbase, + Time: block.Time, + Diff: block.Difficulty, + Value: ethutil.Big(valueStr), + }) + vm.Verbose = true + + self.Db.done = false + self.Logf("callsize %d", len(script)) + go func() { + ret, g, err := callerClosure.Call(vm, data, self.Db.halting) + tot := new(big.Int).Mul(g, gasPrice) + self.Logf("gas usage %v total price = %v (%v)", g, tot, ethutil.CurrencyToString(tot)) + if err != nil { + self.Logln("exited with errors:", err) + } else { + if len(ret) > 0 { + self.Logf("exited: % x", ret) + } else { + self.Logf("exited: nil") + } + } + + state.Reset() + + if !self.Db.interrupt { + self.Db.done = true + } else { + self.Db.interrupt = false + } + }() +} + +func (self *DebuggerWindow) Logf(format string, v ...interface{}) { + self.win.Root().Call("setLog", fmt.Sprintf(format, v...)) +} + +func (self *DebuggerWindow) Logln(v ...interface{}) { + str := fmt.Sprintln(v...) + self.Logf("%s", str[:len(str)-1]) +} + +func (self *DebuggerWindow) Next() { + self.Db.Next() +} + +type Debugger struct { + win *qml.Window + N chan bool + Q chan bool + done, interrupt bool + breakOnInstr bool +} + +type storeVal struct { + Key, Value string +} + +func (d *Debugger) halting(pc int, op ethchain.OpCode, mem *ethchain.Memory, stack *ethchain.Stack, stateObject *ethchain.StateObject) bool { + d.win.Root().Call("setInstruction", pc) + d.win.Root().Call("clearMem") + d.win.Root().Call("clearStack") + d.win.Root().Call("clearStorage") + + addr := 0 + for i := 0; i+32 <= mem.Len(); i += 32 { + d.win.Root().Call("setMem", memAddr{fmt.Sprintf("%03d", addr), fmt.Sprintf("% x", mem.Data()[i:i+32])}) + addr++ + } + + for _, val := range stack.Data() { + d.win.Root().Call("setStack", val.String()) + } + + stateObject.State().EachStorage(func(key string, node *ethutil.Value) { + d.win.Root().Call("setStorage", storeVal{fmt.Sprintf("% x", key), fmt.Sprintf("% x", node.Str())}) + }) + + if d.breakOnInstr { + out: + for { + select { + case <-d.N: + break out + case <-d.Q: + d.interrupt = true + d.clearBuffers() + + return false + } + } + } + + return true +} + +func (d *Debugger) clearBuffers() { +out: + // drain + for { + select { + case <-d.N: + case <-d.Q: + default: + break out + } + } +} + +func (d *Debugger) Next() { + if !d.done { + d.N <- true + } +} diff --git a/ethereal/ui/ext_app.go b/ethereal/ui/ext_app.go new file mode 100644 index 000000000..0230c46ab --- /dev/null +++ b/ethereal/ui/ext_app.go @@ -0,0 +1,132 @@ +package ethui + +import ( + "fmt" + "github.com/ethereum/eth-go/ethchain" + "github.com/ethereum/eth-go/ethpub" + "github.com/ethereum/eth-go/ethutil" + "github.com/go-qml/qml" +) + +type AppContainer interface { + Create() error + Destroy() + + Window() *qml.Window + Engine() *qml.Engine + + NewBlock(*ethchain.Block) + ObjectChanged(*ethchain.StateObject) + StorageChanged(*ethchain.StorageState) + NewWatcher(chan bool) +} + +type ExtApplication struct { + *ethpub.PEthereum + + blockChan chan ethutil.React + changeChan chan ethutil.React + quitChan chan bool + watcherQuitChan chan bool + + container AppContainer + lib *UiLib + registeredEvents []string +} + +func NewExtApplication(container AppContainer, lib *UiLib) *ExtApplication { + app := &ExtApplication{ + ethpub.NewPEthereum(lib.eth), + make(chan ethutil.React, 1), + make(chan ethutil.React, 1), + make(chan bool), + make(chan bool), + container, + lib, + nil, + } + + return app +} + +func (app *ExtApplication) run() { + // Set the "eth" api on to the containers context + context := app.container.Engine().Context() + context.SetVar("eth", app) + context.SetVar("ui", app.lib) + + err := app.container.Create() + if err != nil { + fmt.Println(err) + + return + } + + // Call the main loop + go app.mainLoop() + + // Subscribe to events + reactor := app.lib.eth.Reactor() + reactor.Subscribe("newBlock", app.blockChan) + + app.container.NewWatcher(app.watcherQuitChan) + + win := app.container.Window() + win.Show() + win.Wait() + + app.stop() +} + +func (app *ExtApplication) stop() { + // Clean up + reactor := app.lib.eth.Reactor() + reactor.Unsubscribe("newBlock", app.blockChan) + for _, event := range app.registeredEvents { + reactor.Unsubscribe(event, app.changeChan) + } + + // Kill the main loop + app.quitChan <- true + app.watcherQuitChan <- true + + close(app.blockChan) + close(app.quitChan) + close(app.changeChan) + + app.container.Destroy() +} + +func (app *ExtApplication) mainLoop() { +out: + for { + select { + case <-app.quitChan: + break out + case block := <-app.blockChan: + if block, ok := block.Resource.(*ethchain.Block); ok { + app.container.NewBlock(block) + } + case object := <-app.changeChan: + if stateObject, ok := object.Resource.(*ethchain.StateObject); ok { + app.container.ObjectChanged(stateObject) + } else if storageObject, ok := object.Resource.(*ethchain.StorageState); ok { + app.container.StorageChanged(storageObject) + } + } + } + +} + +func (app *ExtApplication) Watch(addr, storageAddr string) { + var event string + if len(storageAddr) == 0 { + event = "object:" + string(ethutil.Hex2Bytes(addr)) + app.lib.eth.Reactor().Subscribe(event, app.changeChan) + } else { + event = "storage:" + string(ethutil.Hex2Bytes(addr)) + ":" + string(ethutil.Hex2Bytes(storageAddr)) + app.lib.eth.Reactor().Subscribe(event, app.changeChan) + } + + app.registeredEvents = append(app.registeredEvents, event) +} diff --git a/ethereal/ui/gui.go b/ethereal/ui/gui.go new file mode 100644 index 000000000..d8c39e837 --- /dev/null +++ b/ethereal/ui/gui.go @@ -0,0 +1,405 @@ +package ethui + +import ( + "bytes" + "fmt" + "github.com/ethereum/eth-go" + "github.com/ethereum/eth-go/ethchain" + "github.com/ethereum/eth-go/ethdb" + "github.com/ethereum/eth-go/ethlog" + "github.com/ethereum/eth-go/ethpub" + "github.com/ethereum/eth-go/ethutil" + "github.com/ethereum/go-ethereum/utils" + "github.com/go-qml/qml" + "math/big" + "strings" + "time" +) + +var logger = ethlog.NewLogger("GUI") + +type Gui struct { + // The main application window + win *qml.Window + // QML Engine + engine *qml.Engine + component *qml.Common + // The ethereum interface + eth *eth.Ethereum + + // The public Ethereum library + uiLib *UiLib + + txDb *ethdb.LDBDatabase + + pub *ethpub.PEthereum + logLevel ethlog.LogLevel + open bool + + Session string +} + +// Create GUI, but doesn't start it +func New(ethereum *eth.Ethereum, session string, logLevel int) *Gui { + + db, err := ethdb.NewLDBDatabase("tx_database") + if err != nil { + panic(err) + } + + pub := ethpub.NewPEthereum(ethereum) + + return &Gui{eth: ethereum, txDb: db, pub: pub, logLevel: ethlog.LogLevel(logLevel), Session: session, open: false} +} + +func (gui *Gui) Start(assetPath string) { + const version = "0.5.0 RC15" + + defer gui.txDb.Close() + + // Register ethereum functions + qml.RegisterTypes("Ethereum", 1, 0, []qml.TypeSpec{{ + Init: func(p *ethpub.PBlock, obj qml.Object) { p.Number = 0; p.Hash = "" }, + }, { + Init: func(p *ethpub.PTx, obj qml.Object) { p.Value = ""; p.Hash = ""; p.Address = "" }, + }, { + Init: func(p *ethpub.KeyVal, obj qml.Object) { p.Key = ""; p.Value = "" }, + }}) + + ethutil.Config.SetClientString("Ethereal") + + // Create a new QML engine + gui.engine = qml.NewEngine() + context := gui.engine.Context() + + // Expose the eth library and the ui library to QML + context.SetVar("eth", gui) + context.SetVar("pub", gui.pub) + gui.uiLib = NewUiLib(gui.engine, gui.eth, assetPath) + context.SetVar("ui", gui.uiLib) + + // Load the main QML interface + data, _ := ethutil.Config.Db.Get([]byte("KeyRing")) + + var win *qml.Window + var err error + var addlog = false + if len(data) == 0 { + win, err = gui.showKeyImport(context) + } else { + win, err = gui.showWallet(context) + addlog = true + } + if err != nil { + logger.Errorln("asset not found: you can set an alternative asset path on the command line using option 'asset_path'", err) + + panic(err) + } + + logger.Infoln("Starting GUI") + gui.open = true + win.Show() + // only add the gui logger after window is shown otherwise slider wont be shown + if addlog { + ethlog.AddLogSystem(gui) + } + win.Wait() + // need to silence gui logger after window closed otherwise logsystem hangs + gui.SetLogLevel(ethlog.Silence) + gui.open = false +} + +func (gui *Gui) Stop() { + if gui.open { + gui.SetLogLevel(ethlog.Silence) + gui.open = false + gui.win.Hide() + } + logger.Infoln("Stopped") +} + +func (gui *Gui) ToggleMining() { + var txt string + if gui.eth.Mining { + utils.StopMining(gui.eth) + txt = "Start mining" + } else { + utils.StartMining(gui.eth) + txt = "Stop mining" + } + + gui.win.Root().Set("miningButtonText", txt) +} + +func (gui *Gui) showWallet(context *qml.Context) (*qml.Window, error) { + component, err := gui.engine.LoadFile(gui.uiLib.AssetPath("qml/wallet.qml")) + if err != nil { + return nil, err + } + + win := gui.createWindow(component) + + gui.setInitialBlockChain() + gui.loadAddressBook() + gui.readPreviousTransactions() + gui.setPeerInfo() + + go gui.update() + + return win, nil +} + +func (gui *Gui) showKeyImport(context *qml.Context) (*qml.Window, error) { + context.SetVar("lib", gui) + component, err := gui.engine.LoadFile(gui.uiLib.AssetPath("qml/first_run.qml")) + if err != nil { + return nil, err + } + return gui.createWindow(component), nil +} + +func (gui *Gui) createWindow(comp qml.Object) *qml.Window { + win := comp.CreateWindow(nil) + + gui.win = win + gui.uiLib.win = win + + return gui.win +} + +func (gui *Gui) ImportAndSetPrivKey(secret string) bool { + err := gui.eth.KeyManager().InitFromString(gui.Session, 0, secret) + if err != nil { + logger.Errorln("unable to import: ", err) + return false + } + logger.Errorln("successfully imported: ", err) + return true +} + +func (gui *Gui) CreateAndSetPrivKey() (string, string, string, string) { + err := gui.eth.KeyManager().Init(gui.Session, 0, true) + if err != nil { + logger.Errorln("unable to create key: ", err) + return "", "", "", "" + } + return gui.eth.KeyManager().KeyPair().AsStrings() +} + +func (gui *Gui) setInitialBlockChain() { + sBlk := gui.eth.BlockChain().LastBlockHash + blk := gui.eth.BlockChain().GetBlock(sBlk) + for ; blk != nil; blk = gui.eth.BlockChain().GetBlock(sBlk) { + sBlk = blk.PrevHash + addr := gui.address() + + // Loop through all transactions to see if we missed any while being offline + for _, tx := range blk.Transactions() { + if bytes.Compare(tx.Sender(), addr) == 0 || bytes.Compare(tx.Recipient, addr) == 0 { + if ok, _ := gui.txDb.Get(tx.Hash()); ok == nil { + gui.txDb.Put(tx.Hash(), tx.RlpEncode()) + } + + } + } + + gui.processBlock(blk, true) + } +} + +type address struct { + Name, Address string +} + +var namereg = ethutil.Hex2Bytes("bb5f186604d057c1c5240ca2ae0f6430138ac010") + +func (gui *Gui) loadAddressBook() { + gui.win.Root().Call("clearAddress") + stateObject := gui.eth.StateManager().CurrentState().GetStateObject(namereg) + if stateObject != nil { + stateObject.State().EachStorage(func(name string, value *ethutil.Value) { + gui.win.Root().Call("addAddress", struct{ Name, Address string }{name, ethutil.Bytes2Hex(value.Bytes())}) + }) + } +} + +func (gui *Gui) readPreviousTransactions() { + it := gui.txDb.Db().NewIterator(nil, nil) + addr := gui.address() + for it.Next() { + tx := ethchain.NewTransactionFromBytes(it.Value()) + + var inout string + if bytes.Compare(tx.Sender(), addr) == 0 { + inout = "send" + } else { + inout = "recv" + } + + gui.win.Root().Call("addTx", ethpub.NewPTx(tx), inout) + + } + it.Release() +} + +func (gui *Gui) processBlock(block *ethchain.Block, initial bool) { + gui.win.Root().Call("addBlock", ethpub.NewPBlock(block), initial) +} + +func (gui *Gui) setWalletValue(amount, unconfirmedFunds *big.Int) { + var str string + if unconfirmedFunds != nil { + pos := "+" + if unconfirmedFunds.Cmp(big.NewInt(0)) < 0 { + pos = "-" + } + val := ethutil.CurrencyToString(new(big.Int).Abs(ethutil.BigCopy(unconfirmedFunds))) + str = fmt.Sprintf("%v (%s %v)", ethutil.CurrencyToString(amount), pos, val) + } else { + str = fmt.Sprintf("%v", ethutil.CurrencyToString(amount)) + } + + gui.win.Root().Call("setWalletValue", str) +} + +// Simple go routine function that updates the list of peers in the GUI +func (gui *Gui) update() { + reactor := gui.eth.Reactor() + + blockChan := make(chan ethutil.React, 1) + txChan := make(chan ethutil.React, 1) + objectChan := make(chan ethutil.React, 1) + peerChan := make(chan ethutil.React, 1) + + reactor.Subscribe("newBlock", blockChan) + reactor.Subscribe("newTx:pre", txChan) + reactor.Subscribe("newTx:post", txChan) + reactor.Subscribe("object:"+string(namereg), objectChan) + reactor.Subscribe("peerList", peerChan) + + ticker := time.NewTicker(5 * time.Second) + + state := gui.eth.StateManager().TransState() + + unconfirmedFunds := new(big.Int) + gui.win.Root().Call("setWalletValue", fmt.Sprintf("%v", ethutil.CurrencyToString(state.GetAccount(gui.address()).Amount))) + + for { + select { + case b := <-blockChan: + block := b.Resource.(*ethchain.Block) + gui.processBlock(block, false) + if bytes.Compare(block.Coinbase, gui.address()) == 0 { + gui.setWalletValue(gui.eth.StateManager().CurrentState().GetAccount(gui.address()).Amount, nil) + } + + case txMsg := <-txChan: + tx := txMsg.Resource.(*ethchain.Transaction) + + if txMsg.Event == "newTx:pre" { + object := state.GetAccount(gui.address()) + + if bytes.Compare(tx.Sender(), gui.address()) == 0 { + gui.win.Root().Call("addTx", ethpub.NewPTx(tx), "send") + gui.txDb.Put(tx.Hash(), tx.RlpEncode()) + + unconfirmedFunds.Sub(unconfirmedFunds, tx.Value) + } else if bytes.Compare(tx.Recipient, gui.address()) == 0 { + gui.win.Root().Call("addTx", ethpub.NewPTx(tx), "recv") + gui.txDb.Put(tx.Hash(), tx.RlpEncode()) + + unconfirmedFunds.Add(unconfirmedFunds, tx.Value) + } + + gui.setWalletValue(object.Amount, unconfirmedFunds) + } else { + object := state.GetAccount(gui.address()) + if bytes.Compare(tx.Sender(), gui.address()) == 0 { + object.SubAmount(tx.Value) + } else if bytes.Compare(tx.Recipient, gui.address()) == 0 { + object.AddAmount(tx.Value) + } + + gui.setWalletValue(object.Amount, nil) + + state.UpdateStateObject(object) + } + case <-objectChan: + gui.loadAddressBook() + case <-peerChan: + gui.setPeerInfo() + case <-ticker.C: + gui.setPeerInfo() + } + } +} + +func (gui *Gui) setPeerInfo() { + gui.win.Root().Call("setPeers", fmt.Sprintf("%d / %d", gui.eth.PeerCount(), gui.eth.MaxPeers)) + + gui.win.Root().Call("resetPeers") + for _, peer := range gui.pub.GetPeers() { + gui.win.Root().Call("addPeer", peer) + } +} + +func (gui *Gui) privateKey() string { + return ethutil.Bytes2Hex(gui.eth.KeyManager().PrivateKey()) +} + +func (gui *Gui) address() []byte { + return gui.eth.KeyManager().Address() +} + +func (gui *Gui) RegisterName(name string) { + name = fmt.Sprintf("\"%s\"\n1", name) + gui.pub.Transact(gui.privateKey(), "namereg", "1000", "1000000", "150", name) +} + +func (gui *Gui) Transact(recipient, value, gas, gasPrice, data string) (*ethpub.PReceipt, error) { + return gui.pub.Transact(gui.privateKey(), recipient, value, gas, gasPrice, data) +} + +func (gui *Gui) Create(recipient, value, gas, gasPrice, data string) (*ethpub.PReceipt, error) { + return gui.pub.Transact(gui.privateKey(), recipient, value, gas, gasPrice, data) +} + +func (gui *Gui) ChangeClientId(id string) { + ethutil.Config.SetIdentifier(id) +} + +func (gui *Gui) ClientId() string { + return ethutil.Config.Identifier +} + +// functions that allow Gui to implement interface ethlog.LogSystem +func (gui *Gui) SetLogLevel(level ethlog.LogLevel) { + gui.logLevel = level +} + +func (gui *Gui) GetLogLevel() ethlog.LogLevel { + return gui.logLevel +} + +// this extra function needed to give int typecast value to gui widget +// that sets initial loglevel to default +func (gui *Gui) GetLogLevelInt() int { + return int(gui.logLevel) +} + +func (gui *Gui) Println(v ...interface{}) { + gui.printLog(fmt.Sprintln(v...)) +} + +func (gui *Gui) Printf(format string, v ...interface{}) { + gui.printLog(fmt.Sprintf(format, v...)) +} + +// Print function that logs directly to the GUI +func (gui *Gui) printLog(s string) { + str := strings.TrimRight(s, "\n") + lines := strings.Split(str, "\n") + for _, line := range lines { + gui.win.Root().Call("addLog", line) + } +} diff --git a/ethereal/ui/html_container.go b/ethereal/ui/html_container.go new file mode 100644 index 000000000..f2ebd840c --- /dev/null +++ b/ethereal/ui/html_container.go @@ -0,0 +1,133 @@ +package ethui + +import ( + "errors" + "github.com/ethereum/eth-go/ethchain" + "github.com/ethereum/eth-go/ethpub" + "github.com/ethereum/eth-go/ethutil" + "github.com/go-qml/qml" + "github.com/howeyc/fsnotify" + "io/ioutil" + "log" + "net/url" + "os" + "path" + "path/filepath" +) + +type HtmlApplication struct { + win *qml.Window + webView qml.Object + engine *qml.Engine + lib *UiLib + path string + watcher *fsnotify.Watcher +} + +func NewHtmlApplication(path string, lib *UiLib) *HtmlApplication { + engine := qml.NewEngine() + + return &HtmlApplication{engine: engine, lib: lib, path: path} + +} + +func (app *HtmlApplication) Create() error { + component, err := app.engine.LoadFile(app.lib.AssetPath("qml/webapp.qml")) + if err != nil { + return err + } + + if filepath.Ext(app.path) == "eth" { + return errors.New("Ethereum package not yet supported") + + // TODO + ethutil.OpenPackage(app.path) + } + + win := component.CreateWindow(nil) + win.Set("url", app.path) + webView := win.ObjectByName("webView") + + app.win = win + app.webView = webView + + return nil +} + +func (app *HtmlApplication) RootFolder() string { + folder, err := url.Parse(app.path) + if err != nil { + return "" + } + return path.Dir(folder.RequestURI()) +} +func (app *HtmlApplication) RecursiveFolders() []os.FileInfo { + files, _ := ioutil.ReadDir(app.RootFolder()) + var folders []os.FileInfo + for _, file := range files { + if file.IsDir() { + folders = append(folders, file) + } + } + return folders +} + +func (app *HtmlApplication) NewWatcher(quitChan chan bool) { + var err error + + app.watcher, err = fsnotify.NewWatcher() + if err != nil { + return + } + err = app.watcher.Watch(app.RootFolder()) + if err != nil { + log.Fatal(err) + } + for _, folder := range app.RecursiveFolders() { + fullPath := app.RootFolder() + "/" + folder.Name() + app.watcher.Watch(fullPath) + } + + go func() { + out: + for { + select { + case <-quitChan: + app.watcher.Close() + break out + case <-app.watcher.Event: + //logger.Debugln("Got event:", ev) + app.webView.Call("reload") + case err := <-app.watcher.Error: + // TODO: Do something here + logger.Infoln("Watcher error:", err) + } + } + }() + +} + +func (app *HtmlApplication) Engine() *qml.Engine { + return app.engine +} + +func (app *HtmlApplication) Window() *qml.Window { + return app.win +} + +func (app *HtmlApplication) NewBlock(block *ethchain.Block) { + b := ðpub.PBlock{Number: int(block.BlockInfo().Number), Hash: ethutil.Bytes2Hex(block.Hash())} + app.webView.Call("onNewBlockCb", b) +} + +func (app *HtmlApplication) ObjectChanged(stateObject *ethchain.StateObject) { + app.webView.Call("onObjectChangeCb", ethpub.NewPStateObject(stateObject)) +} + +func (app *HtmlApplication) StorageChanged(storageObject *ethchain.StorageState) { + app.webView.Call("onStorageChangeCb", ethpub.NewPStorageState(storageObject)) +} + +func (app *HtmlApplication) Destroy() { + app.engine.Destroy() +} diff --git a/ethereal/ui/qml_app.go b/ethereal/ui/qml_app.go new file mode 100644 index 000000000..d23fdd110 --- /dev/null +++ b/ethereal/ui/qml_app.go @@ -0,0 +1,59 @@ +package ethui + +import ( + "github.com/ethereum/eth-go/ethchain" + "github.com/ethereum/eth-go/ethpub" + "github.com/ethereum/eth-go/ethutil" + "github.com/go-qml/qml" +) + +type QmlApplication struct { + win *qml.Window + engine *qml.Engine + lib *UiLib + path string +} + +func NewQmlApplication(path string, lib *UiLib) *QmlApplication { + engine := qml.NewEngine() + return &QmlApplication{engine: engine, path: path, lib: lib} +} + +func (app *QmlApplication) Create() error { + component, err := app.engine.LoadFile(app.path) + if err != nil { + logger.Warnln(err) + } + app.win = component.CreateWindow(nil) + + return nil +} + +func (app *QmlApplication) Destroy() { + app.engine.Destroy() +} + +func (app *QmlApplication) NewWatcher(quitChan chan bool) { +} + +// Events +func (app *QmlApplication) NewBlock(block *ethchain.Block) { + pblock := ðpub.PBlock{Number: int(block.BlockInfo().Number), Hash: ethutil.Bytes2Hex(block.Hash())} + app.win.Call("onNewBlockCb", pblock) +} + +func (app *QmlApplication) ObjectChanged(stateObject *ethchain.StateObject) { + app.win.Call("onObjectChangeCb", ethpub.NewPStateObject(stateObject)) +} + +func (app *QmlApplication) StorageChanged(storageObject *ethchain.StorageState) { + app.win.Call("onStorageChangeCb", ethpub.NewPStorageState(storageObject)) +} + +// Getters +func (app *QmlApplication) Engine() *qml.Engine { + return app.engine +} +func (app *QmlApplication) Window() *qml.Window { + return app.win +} diff --git a/ethereal/ui/ui_lib.go b/ethereal/ui/ui_lib.go new file mode 100644 index 000000000..892c1f065 --- /dev/null +++ b/ethereal/ui/ui_lib.go @@ -0,0 +1,100 @@ +package ethui + +import ( + "github.com/ethereum/eth-go" + "github.com/ethereum/eth-go/ethutil" + "github.com/go-qml/qml" + "path" +) + +type memAddr struct { + Num string + Value string +} + +// UI Library that has some basic functionality exposed +type UiLib struct { + engine *qml.Engine + eth *eth.Ethereum + connected bool + assetPath string + // The main application window + win *qml.Window + Db *Debugger + DbWindow *DebuggerWindow +} + +func NewUiLib(engine *qml.Engine, eth *eth.Ethereum, assetPath string) *UiLib { + return &UiLib{engine: engine, eth: eth, assetPath: assetPath} +} + +func (ui *UiLib) OpenQml(path string) { + container := NewQmlApplication(path[7:], ui) + app := NewExtApplication(container, ui) + + go app.run() +} + +func (ui *UiLib) OpenHtml(path string) { + container := NewHtmlApplication(path, ui) + app := NewExtApplication(container, ui) + + go app.run() +} + +func (ui *UiLib) Muted(content string) { + component, err := ui.engine.LoadFile(ui.AssetPath("qml/muted.qml")) + if err != nil { + logger.Debugln(err) + + return + } + win := component.CreateWindow(nil) + go func() { + path := "file://" + ui.AssetPath("muted/index.html") + win.Set("url", path) + + win.Show() + win.Wait() + }() +} + +func (ui *UiLib) Connect(button qml.Object) { + if !ui.connected { + ui.eth.Start(true) + ui.connected = true + button.Set("enabled", false) + } +} + +func (ui *UiLib) ConnectToPeer(addr string) { + ui.eth.ConnectToPeer(addr) +} + +func (ui *UiLib) AssetPath(p string) string { + return path.Join(ui.assetPath, p) +} + +func (self *UiLib) StartDbWithContractAndData(contractHash, data string) { + dbWindow := NewDebuggerWindow(self) + object := self.eth.StateManager().CurrentState().GetStateObject(ethutil.Hex2Bytes(contractHash)) + if len(object.Script()) > 0 { + dbWindow.SetCode("0x" + ethutil.Bytes2Hex(object.Script())) + } + dbWindow.SetData("0x" + data) + + dbWindow.Show() +} + +func (self *UiLib) StartDbWithCode(code string) { + dbWindow := NewDebuggerWindow(self) + dbWindow.SetCode("0x" + code) + dbWindow.Show() +} + +func (self *UiLib) StartDebugger() { + dbWindow := NewDebuggerWindow(self) + //self.DbWindow = dbWindow + + dbWindow.Show() +} diff --git a/ethereum/cmd.go b/ethereum/cmd.go new file mode 100644 index 000000000..08147824d --- /dev/null +++ b/ethereum/cmd.go @@ -0,0 +1,32 @@ +package main + +import ( + "github.com/ethereum/eth-go" + "github.com/ethereum/go-ethereum/utils" + "io/ioutil" + "os" +) + +func InitJsConsole(ethereum *eth.Ethereum) { + repl := NewJSRepl(ethereum) + go repl.Start() + utils.RegisterInterrupt(func(os.Signal) { + repl.Stop() + }) +} + +func ExecJsFile(ethereum *eth.Ethereum, InputFile string) { + file, err := os.Open(InputFile) + if err != nil { + logger.Fatalln(err) + } + content, err := ioutil.ReadAll(file) + if err != nil { + logger.Fatalln(err) + } + re := NewJSRE(ethereum) + utils.RegisterInterrupt(func(os.Signal) { + re.Stop() + }) + re.Run(string(content)) +} diff --git a/ethereum/flags.go b/ethereum/flags.go new file mode 100644 index 000000000..d5a9c3a8a --- /dev/null +++ b/ethereum/flags.go @@ -0,0 +1,76 @@ +package main + +import ( + "flag" + "fmt" + "github.com/ethereum/eth-go/ethlog" + "os" + "os/user" + "path" +) + +var Identifier string +var KeyRing string +var KeyStore string +var StartRpc bool +var RpcPort int +var UseUPnP bool +var OutboundPort string +var ShowGenesis bool +var AddPeer string +var MaxPeer int +var GenAddr bool +var UseSeed bool +var SecretFile string +var ExportDir string +var NonInteractive bool +var Datadir string +var LogFile string +var ConfigFile string +var DebugFile string +var LogLevel int + +// flags specific to cli client +var StartMining bool +var StartJsConsole bool +var InputFile string + +func defaultDataDir() string { + usr, _ := user.Current() + return path.Join(usr.HomeDir, ".ethereum") +} + +var defaultConfigFile = path.Join(defaultDataDir(), "conf.ini") + +func Init() { + flag.Usage = func() { + fmt.Fprintf(os.Stderr, "%s [options] [filename]:\noptions precedence: default < config file < environment variables < command line\n", os.Args[0]) + flag.PrintDefaults() + } + + flag.StringVar(&Identifier, "id", "", "Custom client identifier") + flag.StringVar(&KeyRing, "keyring", "", "identifier for keyring to use") + flag.StringVar(&KeyStore, "keystore", "db", "system to store keyrings: db|file (db)") + flag.StringVar(&OutboundPort, "port", "30303", "listening port") + flag.BoolVar(&UseUPnP, "upnp", false, "enable UPnP support") + flag.IntVar(&MaxPeer, "maxpeer", 10, "maximum desired peers") + flag.IntVar(&RpcPort, "rpcport", 8080, "port to start json-rpc server on") + flag.BoolVar(&StartRpc, "rpc", false, "start rpc server") + flag.BoolVar(&NonInteractive, "y", false, "non-interactive mode (say yes to confirmations)") + flag.BoolVar(&UseSeed, "seed", true, "seed peers") + flag.BoolVar(&GenAddr, "genaddr", false, "create a new priv/pub key") + flag.StringVar(&SecretFile, "import", "", "imports the file given (hex or mnemonic formats)") + flag.StringVar(&ExportDir, "export", "", "exports the session keyring to files in the directory given") + flag.StringVar(&LogFile, "logfile", "", "log file (defaults to standard output)") + flag.StringVar(&Datadir, "datadir", defaultDataDir(), "specifies the datadir to use") + flag.StringVar(&ConfigFile, "conf", defaultConfigFile, "config file") + flag.StringVar(&DebugFile, "debug", "", "debug file (no debugging if not set)") + flag.IntVar(&LogLevel, "loglevel", int(ethlog.InfoLevel), "loglevel: 0-5: silent,error,warn,info,debug,debug detail)") + + flag.BoolVar(&StartMining, "mine", false, "start dagger mining") + flag.BoolVar(&StartJsConsole, "js", false, "launches javascript console") + + flag.Parse() + + InputFile = flag.Arg(0) +} diff --git a/ethereum/javascript_runtime.go b/ethereum/javascript_runtime.go new file mode 100644 index 000000000..852a50487 --- /dev/null +++ b/ethereum/javascript_runtime.go @@ -0,0 +1,231 @@ +package main + +import ( + "fmt" + "github.com/ethereum/eth-go" + "github.com/ethereum/eth-go/ethchain" + "github.com/ethereum/eth-go/ethlog" + "github.com/ethereum/eth-go/ethpub" + "github.com/ethereum/eth-go/ethutil" + "github.com/ethereum/go-ethereum/utils" + "github.com/obscuren/otto" + "io/ioutil" + "os" + "path" + "path/filepath" +) + +var jsrelogger = ethlog.NewLogger("JSRE") + +type JSRE struct { + ethereum *eth.Ethereum + vm *otto.Otto + lib *ethpub.PEthereum + + blockChan chan ethutil.React + changeChan chan ethutil.React + quitChan chan bool + + objectCb map[string][]otto.Value +} + +func (jsre *JSRE) LoadExtFile(path string) { + result, err := ioutil.ReadFile(path) + if err == nil { + jsre.vm.Run(result) + } else { + jsrelogger.Debugln("Could not load file:", path) + } +} + +func (jsre *JSRE) LoadIntFile(file string) { + assetPath := path.Join(os.Getenv("GOPATH"), "src", "github.com", "ethereum", "go-ethereum", "ethereal", "assets", "ext") + jsre.LoadExtFile(path.Join(assetPath, file)) +} + +func NewJSRE(ethereum *eth.Ethereum) *JSRE { + re := &JSRE{ + ethereum, + otto.New(), + ethpub.NewPEthereum(ethereum), + make(chan ethutil.React, 1), + make(chan ethutil.React, 1), + make(chan bool), + make(map[string][]otto.Value), + } + + // Init the JS lib + re.vm.Run(jsLib) + + // Load extra javascript files + re.LoadIntFile("string.js") + re.LoadIntFile("big.js") + + // We have to make sure that, whoever calls this, calls "Stop" + go re.mainLoop() + + re.Bind("eth", &JSEthereum{re.lib, re.vm}) + + re.initStdFuncs() + + jsrelogger.Infoln("started") + + return re +} + +func (self *JSRE) Bind(name string, v interface{}) { + self.vm.Set(name, v) +} + +func (self *JSRE) Run(code string) (otto.Value, error) { + return self.vm.Run(code) +} + +func (self *JSRE) Require(file string) error { + if len(filepath.Ext(file)) == 0 { + file += ".js" + } + + fh, err := os.Open(file) + if err != nil { + return err + } + + content, _ := ioutil.ReadAll(fh) + self.Run("exports = {};(function() {" + string(content) + "})();") + + return nil +} + +func (self *JSRE) Stop() { + // Kill the main loop + self.quitChan <- true + + close(self.blockChan) + close(self.quitChan) + close(self.changeChan) + jsrelogger.Infoln("stopped") +} + +func (self *JSRE) mainLoop() { + // Subscribe to events + reactor := self.ethereum.Reactor() + reactor.Subscribe("newBlock", self.blockChan) + +out: + for { + select { + case <-self.quitChan: + break out + case block := <-self.blockChan: + if _, ok := block.Resource.(*ethchain.Block); ok { + } + case object := <-self.changeChan: + if stateObject, ok := object.Resource.(*ethchain.StateObject); ok { + for _, cb := range self.objectCb[ethutil.Bytes2Hex(stateObject.Address())] { + val, _ := self.vm.ToValue(ethpub.NewPStateObject(stateObject)) + cb.Call(cb, val) + } + } else if storageObject, ok := object.Resource.(*ethchain.StorageState); ok { + for _, cb := range self.objectCb[ethutil.Bytes2Hex(storageObject.StateAddress)+ethutil.Bytes2Hex(storageObject.Address)] { + val, _ := self.vm.ToValue(ethpub.NewPStorageState(storageObject)) + cb.Call(cb, val) + } + } + } + } +} + +func (self *JSRE) initStdFuncs() { + t, _ := self.vm.Get("eth") + eth := t.Object() + eth.Set("watch", self.watch) + eth.Set("addPeer", self.addPeer) + eth.Set("require", self.require) + eth.Set("stopMining", self.stopMining) + eth.Set("startMining", self.startMining) + eth.Set("execBlock", self.execBlock) +} + +/* + * The following methods are natively implemented javascript functions + */ + +func (self *JSRE) stopMining(call otto.FunctionCall) otto.Value { + v, _ := self.vm.ToValue(utils.StopMining(self.ethereum)) + return v +} + +func (self *JSRE) startMining(call otto.FunctionCall) otto.Value { + v, _ := self.vm.ToValue(utils.StartMining(self.ethereum)) + return v +} + +// eth.watch +func (self *JSRE) watch(call otto.FunctionCall) otto.Value { + addr, _ := call.Argument(0).ToString() + var storageAddr string + var cb otto.Value + var storageCallback bool + if len(call.ArgumentList) > 2 { + storageCallback = true + storageAddr, _ = call.Argument(1).ToString() + cb = call.Argument(2) + } else { + cb = call.Argument(1) + } + + if storageCallback { + self.objectCb[addr+storageAddr] = append(self.objectCb[addr+storageAddr], cb) + + event := "storage:" + string(ethutil.Hex2Bytes(addr)) + ":" + string(ethutil.Hex2Bytes(storageAddr)) + self.ethereum.Reactor().Subscribe(event, self.changeChan) + } else { + self.objectCb[addr] = append(self.objectCb[addr], cb) + + event := "object:" + string(ethutil.Hex2Bytes(addr)) + self.ethereum.Reactor().Subscribe(event, self.changeChan) + } + + return otto.UndefinedValue() +} + +func (self *JSRE) addPeer(call otto.FunctionCall) otto.Value { + host, err := call.Argument(0).ToString() + if err != nil { + return otto.FalseValue() + } + self.ethereum.ConnectToPeer(host) + + return otto.TrueValue() +} + +func (self *JSRE) require(call otto.FunctionCall) otto.Value { + file, err := call.Argument(0).ToString() + if err != nil { + return otto.UndefinedValue() + } + if err := self.Require(file); err != nil { + fmt.Println("err:", err) + return otto.UndefinedValue() + } + + t, _ := self.vm.Get("exports") + + return t +} + +func (self *JSRE) execBlock(call otto.FunctionCall) otto.Value { + hash, err := call.Argument(0).ToString() + if err != nil { + return otto.UndefinedValue() + } + + err = utils.BlockDo(self.ethereum, ethutil.Hex2Bytes(hash)) + if err != nil { + fmt.Println(err) + return otto.FalseValue() + } + + return otto.TrueValue() +} diff --git a/ethereum/js_lib.go b/ethereum/js_lib.go new file mode 100644 index 000000000..189dcc3a0 --- /dev/null +++ b/ethereum/js_lib.go @@ -0,0 +1,53 @@ +package main + +const jsLib = ` +function pp(object) { + var str = ""; + + if(object instanceof Array) { + str += "[ "; + for(var i = 0, l = object.length; i < l; i++) { + str += pp(object[i]); + + if(i < l-1) { + str += ", "; + } + } + str += " ]"; + } else if(typeof(object) === "object") { + str += "{ "; + var last = Object.keys(object).sort().pop() + for(var k in object) { + str += k + ": " + pp(object[k]); + + if(k !== last) { + str += ", "; + } + } + str += " }"; + } else if(typeof(object) === "string") { + str += "\033[32m'" + object + "'"; + } else if(typeof(object) === "undefined") { + str += "\033[1m\033[30m" + object; + } else if(typeof(object) === "number") { + str += "\033[31m" + object; + } else if(typeof(object) === "function") { + str += "\033[35m[Function]"; + } else { + str += object; + } + + str += "\033[0m"; + + return str; +} + +function prettyPrint(/* */) { + var args = arguments; + for(var i = 0, l = args.length; i < l; i++) { + console.log(pp(args[i])) + } +} + +var print = prettyPrint; +` diff --git a/ethereum/main.go b/ethereum/main.go new file mode 100644 index 000000000..1531871cb --- /dev/null +++ b/ethereum/main.go @@ -0,0 +1,57 @@ +package main + +import ( + "github.com/ethereum/eth-go/ethlog" + "github.com/ethereum/go-ethereum/utils" + "runtime" +) + +var logger = ethlog.NewLogger("CLI") + +func main() { + runtime.GOMAXPROCS(runtime.NumCPU()) + + utils.HandleInterrupt() + + // precedence: code-internal flag default < config file < environment variables < command line + Init() // parsing command line + utils.InitConfig(ConfigFile, Datadir, Identifier, "ETH") + + utils.InitDataDir(Datadir) + + utils.InitLogging(Datadir, LogFile, LogLevel, DebugFile) + + db := utils.NewDatabase() + + keyManager := utils.NewKeyManager(KeyStore, Datadir, db) + + // create, import, export keys + utils.KeyTasks(keyManager, KeyRing, GenAddr, SecretFile, ExportDir, NonInteractive) + + ethereum := utils.NewEthereum(db, keyManager, UseUPnP, OutboundPort, MaxPeer) + + if ShowGenesis { + utils.ShowGenesis(ethereum) + } + + if StartMining { + utils.StartMining(ethereum) + } + + // better reworked as cases + if StartJsConsole { + InitJsConsole(ethereum) + } else if len(InputFile) > 0 { + ExecJsFile(ethereum, InputFile) + } + + if StartRpc { + utils.StartRpc(ethereum, RpcPort) + } + + utils.StartEthereum(ethereum, UseSeed) + + // this blocks the thread + ethereum.WaitForShutdown() + ethlog.Flush() +} diff --git a/ethereum/repl.go b/ethereum/repl.go new file mode 100644 index 000000000..34380a06f --- /dev/null +++ b/ethereum/repl.go @@ -0,0 +1,153 @@ +package main + +import ( + "bufio" + "fmt" + "github.com/ethereum/eth-go" + "github.com/ethereum/eth-go/ethpub" + "github.com/ethereum/eth-go/ethutil" + "github.com/obscuren/otto" + "io" + "os" + "path" +) + +type Repl interface { + Start() + Stop() +} + +type JSRepl struct { + re *JSRE + + prompt string + + history *os.File + + running bool +} + +func NewJSRepl(ethereum *eth.Ethereum) *JSRepl { + hist, err := os.OpenFile(path.Join(ethutil.Config.ExecPath, "history"), os.O_RDWR|os.O_CREATE, os.ModePerm) + if err != nil { + panic(err) + } + + return &JSRepl{re: NewJSRE(ethereum), prompt: "> ", history: hist} +} + +func (self *JSRepl) Start() { + if !self.running { + self.running = true + logger.Infoln("init JS Console") + reader := bufio.NewReader(self.history) + for { + line, err := reader.ReadString('\n') + if err != nil && err == io.EOF { + break + } else if err != nil { + fmt.Println("error reading history", err) + break + } + + addHistory(line[:len(line)-1]) + } + self.read() + } +} + +func (self *JSRepl) Stop() { + if self.running { + self.running = false + self.re.Stop() + logger.Infoln("exit JS Console") + self.history.Close() + } +} + +func (self *JSRepl) parseInput(code string) { + defer func() { + if r := recover(); r != nil { + fmt.Println("[native] error", r) + } + }() + + value, err := self.re.Run(code) + if err != nil { + fmt.Println(err) + return + } + + self.PrintValue(value) +} + +// The JSEthereum object attempts to wrap the PEthereum object and returns +// meaningful javascript objects +type JSBlock struct { + *ethpub.PBlock + eth *JSEthereum +} + +func (self *JSBlock) GetTransaction(hash string) otto.Value { + return self.eth.toVal(self.PBlock.GetTransaction(hash)) +} + +type JSEthereum struct { + *ethpub.PEthereum + vm *otto.Otto +} + +func (self *JSEthereum) GetBlock(hash string) otto.Value { + return self.toVal(&JSBlock{self.PEthereum.GetBlock(hash), self}) +} + +func (self *JSEthereum) GetPeers() otto.Value { + return self.toVal(self.PEthereum.GetPeers()) +} + +func (self *JSEthereum) GetKey() otto.Value { + return self.toVal(self.PEthereum.GetKey()) +} + +func (self *JSEthereum) GetStateObject(addr string) otto.Value { + return self.toVal(self.PEthereum.GetStateObject(addr)) +} + +func (self *JSEthereum) GetStateKeyVals(addr string) otto.Value { + return self.toVal(self.PEthereum.GetStateObject(addr).StateKeyVal(false)) +} + +func (self *JSEthereum) Transact(key, recipient, valueStr, gasStr, gasPriceStr, dataStr string) otto.Value { + r, err := self.PEthereum.Transact(key, recipient, valueStr, gasStr, gasPriceStr, dataStr) + if err != nil { + fmt.Println(err) + + return otto.UndefinedValue() + } + + return self.toVal(r) +} + +func (self *JSEthereum) Create(key, valueStr, gasStr, gasPriceStr, scriptStr string) otto.Value { + r, err := self.PEthereum.Create(key, valueStr, gasStr, gasPriceStr, scriptStr) + + if err != nil { + fmt.Println(err) + + return otto.UndefinedValue() + } + + return self.toVal(r) +} + +func (self *JSEthereum) toVal(v interface{}) otto.Value { + result, err := self.vm.ToValue(v) + + if err != nil { + fmt.Println("Value unknown:", err) + + return otto.UndefinedValue() + } + + return result +} diff --git a/ethereum/repl_darwin.go b/ethereum/repl_darwin.go new file mode 100644 index 000000000..62b40059a --- /dev/null +++ b/ethereum/repl_darwin.go @@ -0,0 +1,123 @@ +package main + +// #cgo darwin CFLAGS: -I/usr/local/opt/readline/include +// #cgo darwin LDFLAGS: -L/usr/local/opt/readline/lib +// #cgo LDFLAGS: -lreadline +// #include <stdio.h> +// #include <stdlib.h> +// #include <readline/readline.h> +// #include <readline/history.h> +import "C" +import ( + "os" + "os/signal" + "strings" + "syscall" + "unsafe" +) + +func initReadLine() { + C.rl_catch_sigwinch = 0 + C.rl_catch_signals = 0 + c := make(chan os.Signal, 1) + signal.Notify(c, syscall.SIGWINCH) + signal.Notify(c, os.Interrupt) + go func() { + for sig := range c { + switch sig { + case syscall.SIGWINCH: + C.rl_resize_terminal() + + case os.Interrupt: + C.rl_cleanup_after_signal() + default: + + } + } + }() +} + +func readLine(prompt *string) *string { + var p *C.char + + //readline allows an empty prompt(NULL) + if prompt != nil { + p = C.CString(*prompt) + } + + ret := C.readline(p) + + if p != nil { + C.free(unsafe.Pointer(p)) + } + + if ret == nil { + return nil + } //EOF + + s := C.GoString(ret) + C.free(unsafe.Pointer(ret)) + return &s +} + +func addHistory(s string) { + p := C.CString(s) + C.add_history(p) + C.free(unsafe.Pointer(p)) +} + +var indentCount = 0 +var str = "" + +func (self *JSRepl) setIndent() { + open := strings.Count(str, "{") + open += strings.Count(str, "(") + closed := strings.Count(str, "}") + closed += strings.Count(str, ")") + indentCount = open - closed + if indentCount <= 0 { + self.prompt = "> " + } else { + self.prompt = strings.Join(make([]string, indentCount*2), "..") + self.prompt += " " + } +} + +func (self *JSRepl) read() { + initReadLine() +L: + for { + switch result := readLine(&self.prompt); true { + case result == nil: + break L + + case *result != "": + str += *result + "\n" + + self.setIndent() + + if indentCount <= 0 { + if *result == "exit" { + self.Stop() + break L + } + + hist := str[:len(str)-1] + addHistory(hist) //allow user to recall this line + self.history.WriteString(str) + + self.parseInput(str) + + str = "" + } + } + } +} + +func (self *JSRepl) PrintValue(v interface{}) { + method, _ := self.re.vm.Get("prettyPrint") + v, err := self.re.vm.ToValue(v) + if err == nil { + method.Call(method, v) + } +} diff --git a/ethereum/repl_linux.go b/ethereum/repl_linux.go new file mode 120000 index 000000000..276f135d7 --- /dev/null +++ b/ethereum/repl_linux.go @@ -0,0 +1 @@ +repl_darwin.go
\ No newline at end of file diff --git a/ethereum/repl_windows.go b/ethereum/repl_windows.go new file mode 100644 index 000000000..9d4787772 --- /dev/null +++ b/ethereum/repl_windows.go @@ -0,0 +1,24 @@ +package main + +import ( + "bufio" + "fmt" + "os" +) + +func (self *JSRepl) read() { + reader := bufio.NewReader(os.Stdin) + for { + fmt.Printf(self.prompt) + str, _, err := reader.ReadLine() + if err != nil { + fmt.Println("Error reading input", err) + } else { + self.parseInput(string(str)) + } + } +} + +func (self *JSRepl) PrintValue(value otto.Value) { + fmt.Println(value) +} diff --git a/install.sh b/install.sh new file mode 100755 index 000000000..9719a1afc --- /dev/null +++ b/install.sh @@ -0,0 +1,57 @@ +#!/bin/sh + +if [ "$1" == "" ]; then + echo "Usage $0 executable branch ethereum develop" + echo "executable ethereum or ethereal" + echo "branch develop or master" + exit +fi + +exe=$1 +branch=$2 + +# Test if go is installed +command -v go >/dev/null 2>&1 || { echo >&2 "Unable to find 'go'. This script requires go."; exit 1; } + +# Test if $GOPATH is set +if [ "$GOPATH" == "" ]; then + echo "\$GOPATH not set" + exit +fi + +echo "go get -u -d github.com/ethereum/go-ethereum/$exe" +go get -v -u -d github.com/ethereum/go-ethereum/$exe +if [ $? != 0 ]; then + echo "go get failed" + exit +fi + +echo "serpent-go" +cd $GOPATH/src/github.com/obscuren/serpent-go + +echo "init submodule" +git submodule init +git submodule update + +echo "eth-go" +cd $GOPATH/src/github.com/ethereum/eth-go +git checkout $branch + +echo "go-ethereum" +cd $GOPATH/src/github.com/ethereum/go-ethereum/$exe +git checkout $branch + +if [ "$exe" == "ethereal" ]; then + echo "Building ethereal GUI. Assuming Qt is installed. If this step" + echo "fails; please refer to: https://github.com/ethereum/go-ethereum/wiki/Building-Ethereum(Go)" +else + echo "Building ethereum CLI." +fi + +go install +if [ $? == 0 ]; then + echo "go install failed" + exit +fi + +echo "done. Please run $exe :-)" diff --git a/utils/cmd.go b/utils/cmd.go new file mode 100644 index 000000000..dc435a700 --- /dev/null +++ b/utils/cmd.go @@ -0,0 +1,253 @@ +package utils + +import ( + "fmt" + "github.com/ethereum/eth-go" + "github.com/ethereum/eth-go/ethcrypto" + "github.com/ethereum/eth-go/ethdb" + "github.com/ethereum/eth-go/ethlog" + "github.com/ethereum/eth-go/ethminer" + "github.com/ethereum/eth-go/ethpub" + "github.com/ethereum/eth-go/ethrpc" + "github.com/ethereum/eth-go/ethutil" + "io" + "log" + "os" + "os/signal" + "path" + "time" +) + +var logger = ethlog.NewLogger("CLI") +var interruptCallbacks = []func(os.Signal){} + +// Register interrupt handlers callbacks +func RegisterInterrupt(cb func(os.Signal)) { + interruptCallbacks = append(interruptCallbacks, cb) +} + +// go routine that call interrupt handlers in order of registering +func HandleInterrupt() { + c := make(chan os.Signal, 1) + go func() { + signal.Notify(c, os.Interrupt) + for sig := range c { + logger.Errorf("Shutting down (%v) ... \n", sig) + RunInterruptCallbacks(sig) + } + }() +} + +func RunInterruptCallbacks(sig os.Signal) { + for _, cb := range interruptCallbacks { + cb(sig) + } +} + +func AbsolutePath(Datadir string, filename string) string { + if path.IsAbs(filename) { + return filename + } + return path.Join(Datadir, filename) +} + +func openLogFile(Datadir string, filename string) *os.File { + path := AbsolutePath(Datadir, filename) + file, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666) + if err != nil { + panic(fmt.Sprintf("error opening log file '%s': %v", filename, err)) + } + return file +} + +func confirm(message string) bool { + fmt.Println(message, "Are you sure? (y/n)") + var r string + fmt.Scanln(&r) + for ; ; fmt.Scanln(&r) { + if r == "n" || r == "y" { + break + } else { + fmt.Printf("Yes or no?", r) + } + } + return r == "y" +} + +func InitDataDir(Datadir string) { + _, err := os.Stat(Datadir) + if err != nil { + if os.IsNotExist(err) { + fmt.Printf("Data directory '%s' doesn't exist, creating it\n", Datadir) + os.Mkdir(Datadir, 0777) + } + } +} + +func InitLogging(Datadir string, LogFile string, LogLevel int, DebugFile string) { + var writer io.Writer + if LogFile == "" { + writer = os.Stdout + } else { + writer = openLogFile(Datadir, LogFile) + } + ethlog.AddLogSystem(ethlog.NewStdLogSystem(writer, log.LstdFlags, ethlog.LogLevel(LogLevel))) + if DebugFile != "" { + writer = openLogFile(Datadir, DebugFile) + ethlog.AddLogSystem(ethlog.NewStdLogSystem(writer, log.LstdFlags, ethlog.DebugLevel)) + } +} + +func InitConfig(ConfigFile string, Datadir string, Identifier string, EnvPrefix string) { + InitDataDir(Datadir) + ethutil.ReadConfig(ConfigFile, Datadir, Identifier, EnvPrefix) +} + +func exit(err error) { + status := 0 + if err != nil { + logger.Errorln("Fatal: ", err) + status = 1 + } + ethlog.Flush() + os.Exit(status) +} + +func NewDatabase() ethutil.Database { + db, err := ethdb.NewLDBDatabase("database") + if err != nil { + exit(err) + } + return db +} + +func NewEthereum(db ethutil.Database, keyManager *ethcrypto.KeyManager, usePnp bool, OutboundPort string, MaxPeer int) *eth.Ethereum { + ethereum, err := eth.New(db, keyManager, eth.CapDefault, usePnp) + if err != nil { + logger.Fatalln("eth start err:", err) + } + ethereum.Port = OutboundPort + ethereum.MaxPeers = MaxPeer + return ethereum +} + +func StartEthereum(ethereum *eth.Ethereum, UseSeed bool) { + logger.Infof("Starting Ethereum v%s", ethutil.Config.Ver) + ethereum.Start(UseSeed) + RegisterInterrupt(func(sig os.Signal) { + ethereum.Stop() + ethlog.Flush() + }) +} + +func ShowGenesis(ethereum *eth.Ethereum) { + logger.Infoln(ethereum.BlockChain().Genesis()) + exit(nil) +} + +func NewKeyManager(KeyStore string, Datadir string, db ethutil.Database) *ethcrypto.KeyManager { + var keyManager *ethcrypto.KeyManager + switch { + case KeyStore == "db": + keyManager = ethcrypto.NewDBKeyManager(db) + case KeyStore == "file": + keyManager = ethcrypto.NewFileKeyManager(Datadir) + default: + exit(fmt.Errorf("unknown keystore type: %s", KeyStore)) + } + return keyManager +} + +func KeyTasks(keyManager *ethcrypto.KeyManager, KeyRing string, GenAddr bool, SecretFile string, ExportDir string, NonInteractive bool) { + var err error + switch { + case GenAddr: + if NonInteractive || confirm("This action overwrites your old private key.") { + err = keyManager.Init(KeyRing, 0, true) + } + exit(err) + case len(SecretFile) > 0: + if NonInteractive || confirm("This action overwrites your old private key.") { + err = keyManager.InitFromSecretsFile(KeyRing, 0, SecretFile) + } + exit(err) + case len(ExportDir) > 0: + err = keyManager.Init(KeyRing, 0, false) + if err == nil { + err = keyManager.Export(ExportDir) + } + exit(err) + default: + // Creates a keypair if none exists + err = keyManager.Init(KeyRing, 0, false) + if err != nil { + exit(err) + } + } +} + +func StartRpc(ethereum *eth.Ethereum, RpcPort int) { + var err error + ethereum.RpcServer, err = ethrpc.NewJsonRpcServer(ethpub.NewPEthereum(ethereum), RpcPort) + if err != nil { + logger.Errorf("Could not start RPC interface (port %v): %v", RpcPort, err) + } else { + go ethereum.RpcServer.Start() + } +} + +var miner ethminer.Miner + +func StartMining(ethereum *eth.Ethereum) bool { + if !ethereum.Mining { + ethereum.Mining = true + + addr := ethereum.KeyManager().Address() + + go func() { + miner = ethminer.NewDefaultMiner(addr, ethereum) + // Give it some time to connect with peers + time.Sleep(3 * time.Second) + for !ethereum.IsUpToDate() == false { + time.Sleep(5 * time.Second) + } + + logger.Infoln("Miner started") + miner := ethminer.NewDefaultMiner(addr, ethereum) + miner.Start() + }() + RegisterInterrupt(func(os.Signal) { + StopMining(ethereum) + }) + return true + } + return false +} + +func StopMining(ethereum *eth.Ethereum) bool { + if ethereum.Mining { + miner.Stop() + logger.Infoln("Miner stopped") + ethereum.Mining = false + return true + } + return false +} + +// Replay block +func BlockDo(ethereum *eth.Ethereum, hash []byte) error { + block := ethereum.BlockChain().GetBlock(hash) + if block == nil { + return fmt.Errorf("unknown block %x", hash) + } + + parent := ethereum.BlockChain().GetBlock(block.PrevHash) + + _, err := ethereum.StateManager().ApplyDiff(parent.State(), parent, block) + if err != nil { + return err + } + + return nil + +} |
