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Diffstat (limited to 'cmd/mist/assets/ext/html_messaging.js')
-rw-r--r-- | cmd/mist/assets/ext/html_messaging.js | 464 |
1 files changed, 464 insertions, 0 deletions
diff --git a/cmd/mist/assets/ext/html_messaging.js b/cmd/mist/assets/ext/html_messaging.js new file mode 100644 index 000000000..91310e998 --- /dev/null +++ b/cmd/mist/assets/ext/html_messaging.js @@ -0,0 +1,464 @@ +// The magic return variable. The magic return variable will be set during the execution of the QML call. +(function(window) { + var Promise = window.Promise; + if(typeof(Promise) === "undefined") { + var Promise = Q.Promise; + } + + function isPromise(o) { + return typeof o === "object" && o.then + } + + window.eth = { + _callbacks: {}, + _events: {}, + prototype: Object(), + + toHex: function(str) { + var hex = ""; + for(var i = 0; i < str.length; i++) { + var n = str.charCodeAt(i).toString(16); + hex += n.length < 2 ? '0' + n : n; + } + + return hex; + }, + + toAscii: function(hex) { + // Find termination + var str = ""; + var i = 0, l = hex.length; + for(; i < l; i+=2) { + var code = hex.charCodeAt(i) + if(code == 0) { + break; + } + + str += String.fromCharCode(parseInt(hex.substr(i, 2), 16)); + } + + return str; + }, + + fromAscii: function(str, pad) { + if(pad === undefined) { + pad = 32 + } + + var hex = this.toHex(str); + + while(hex.length < pad*2) + hex += "00"; + + return hex + }, + + block: function(numberOrHash) { + return new Promise(function(resolve, reject) { + var func; + if(typeof numberOrHash == "string") { + func = "getBlockByHash"; + } else { + func = "getBlockByNumber"; + } + + postData({call: func, args: [numberOrHash]}, function(block) { + if(block) + resolve(block); + else + reject("not found"); + + }); + }); + }, + + transact: function(params) { + if(params === undefined) { + params = {}; + } + + if(params.endowment !== undefined) + params.value = params.endowment; + if(params.code !== undefined) + params.data = params.code; + + + var promises = [] + if(isPromise(params.to)) { + promises.push(params.to.then(function(_to) { params.to = _to; })); + } + if(isPromise(params.from)) { + promises.push(params.from.then(function(_from) { params.from = _from; })); + } + + if(typeof params.data !== "object" || isPromise(params.data)) { + params.data = [params.data] + } + + var data = params.data; + for(var i = 0; i < params.data.length; i++) { + if(isPromise(params.data[i])) { + var promise = params.data[i]; + var _i = i; + promises.push(promise.then(function(_arg) { params.data[_i] = _arg; })); + } + } + + // Make sure everything is string + var fields = ["value", "gas", "gasPrice"]; + for(var i = 0; i < fields.length; i++) { + if(params[fields[i]] === undefined) { + params[fields[i]] = ""; + } + params[fields[i]] = params[fields[i]].toString(); + } + + // Load promises then call the last "transact". + return Q.all(promises).then(function() { + return new Promise(function(resolve, reject) { + params.data = params.data.join(""); + postData({call: "transact", args: params}, function(data) { + if(data[1]) + reject(data[0]); + else + resolve(data[0]); + }); + }); + }) + }, + + compile: function(code) { + return new Promise(function(resolve, reject) { + postData({call: "compile", args: [code]}, function(data) { + if(data[1]) + reject(data[0]); + else + resolve(data[0]); + }); + }); + }, + + balanceAt: function(address) { + var promises = []; + + if(isPromise(address)) { + promises.push(address.then(function(_address) { address = _address; })); + } + + return Q.all(promises).then(function() { + return new Promise(function(resolve, reject) { + postData({call: "getBalanceAt", args: [address]}, function(balance) { + resolve(balance); + }); + }); + }); + }, + + countAt: function(address) { + var promises = []; + + if(isPromise(address)) { + promises.push(address.then(function(_address) { address = _address; })); + } + + return Q.all(promises).then(function() { + return new Promise(function(resolve, reject) { + postData({call: "getCountAt", args: [address]}, function(count) { + resolve(count); + }); + }); + }); + }, + + codeAt: function(address) { + var promises = []; + + if(isPromise(address)) { + promises.push(address.then(function(_address) { address = _address; })); + } + + return Q.all(promises).then(function() { + return new Promise(function(resolve, reject) { + postData({call: "getCodeAt", args: [address]}, function(code) { + resolve(code); + }); + }); + }); + }, + + storageAt: function(address, storageAddress) { + var promises = []; + + if(isPromise(address)) { + promises.push(address.then(function(_address) { address = _address; })); + } + + if(isPromise(storageAddress)) { + promises.push(storageAddress.then(function(_sa) { storageAddress = _sa; })); + } + + return Q.all(promises).then(function() { + return new Promise(function(resolve, reject) { + postData({call: "getStorageAt", args: [address, storageAddress]}, function(entry) { + resolve(entry); + }); + }); + }); + }, + + stateAt: function(address, storageAddress) { + return this.storageAt(address, storageAddress); + }, + + call: function(params) { + if(params === undefined) { + params = {}; + } + + if(params.endowment !== undefined) + params.value = params.endowment; + if(params.code !== undefined) + params.data = params.code; + + + var promises = [] + if(isPromise(params.to)) { + promises.push(params.to.then(function(_to) { params.to = _to; })); + } + if(isPromise(params.from)) { + promises.push(params.from.then(function(_from) { params.from = _from; })); + } + + if(isPromise(params.data)) { + promises.push(params.data.then(function(_code) { params.data = _code; })); + } else { + if(typeof params.data === "object") { + data = ""; + for(var i = 0; i < params.data.length; i++) { + data += params.data[i] + } + } else { + data = params.data; + } + } + + // Make sure everything is string + var fields = ["value", "gas", "gasPrice"]; + for(var i = 0; i < fields.length; i++) { + if(params[fields[i]] === undefined) { + params[fields[i]] = ""; + } + params[fields[i]] = params[fields[i]].toString(); + } + + // Load promises then call the last "transact". + return Q.all(promises).then(function() { + return new Promise(function(resolve, reject) { + postData({call: "call", args: params}, function(data) { + if(data[1]) + reject(data[0]); + else + resolve(data[0]); + }); + }); + }) + }, + + watch: function(params) { + return new Filter(params); + }, + + secretToAddress: function(key) { + var promises = []; + if(isPromise(key)) { + promises.push(key.then(function(_key) { key = _key; })); + } + + return Q.all(promises).then(function() { + return new Promise(function(resolve, reject) { + postData({call: "getSecretToAddress", args: [key]}, function(address) { + resolve(address); + }); + }); + }); + }, + + on: function(event, cb) { + if(eth._events[event] === undefined) { + eth._events[event] = []; + } + + eth._events[event].push(cb); + + return this + }, + + off: function(event, cb) { + if(eth._events[event] !== undefined) { + var callbacks = eth._events[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._events[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); + } + } + } + }, + }; + + // Eth object properties + Object.defineProperty(eth, "key", { + get: function() { + return new Promise(function(resolve, reject) { + postData({call: "getKey"}, function(k) { + resolve(k); + }); + }); + }, + }); + + Object.defineProperty(eth, "gasPrice", { + get: function() { + return "10000000000000" + } + }); + + Object.defineProperty(eth, "coinbase", { + get: function() { + return new Promise(function(resolve, reject) { + postData({call: "getCoinBase"}, function(coinbase) { + resolve(coinbase); + }); + }); + }, + }); + + Object.defineProperty(eth, "listening", { + get: function() { + return new Promise(function(resolve, reject) { + postData({call: "getIsListening"}, function(listening) { + resolve(listening); + }); + }); + }, + }); + + + Object.defineProperty(eth, "mining", { + get: function() { + return new Promise(function(resolve, reject) { + postData({call: "getIsMining"}, function(mining) { + resolve(mining); + }); + }); + }, + }); + + Object.defineProperty(eth, "peerCount", { + get: function() { + return new Promise(function(resolve, reject) { + postData({call: "getPeerCount"}, function(peerCount) { + resolve(peerCount); + }); + }); + }, + }); + + var filters = []; + var Filter = function(options) { + filters.push(this); + + this.callbacks = []; + this.options = options; + + var call; + if(options === "chain") { + call = "newFilterString" + } else if(typeof options === "object") { + call = "newFilter" + } + + var self = this; // Cheaper than binding + this.promise = new Promise(function(resolve, reject) { + postData({call: call, args: [options]}, function(id) { + self.id = id; + + resolve(id); + }); + }); + }; + + Filter.prototype.changed = function(callback) { + var self = this; + this.promise.then(function(id) { + self.callbacks.push(callback); + }); + }; + + Filter.prototype.trigger = function(messages, id) { + if(id == this.id) { + for(var i = 0; i < this.callbacks.length; i++) { + this.callbacks[i].call(this, messages); + } + } + }; + + Filter.prototype.uninstall = function() { + this.promise.then(function(id) { + postData({call: "uninstallFilter", args:[id]}); + }); + }; + + Filter.prototype.messages = function() { + var self=this; + return Q.all([this.promise]).then(function() { + var id = self.id + return new Promise(function(resolve, reject) { + postData({call: "getMessages", args: [id]}, function(messages) { + resolve(messages); + }); + }); + }); + }; + + // Register to the messages callback. "messages" will be emitted when new messages + // from the client have been created. + eth.on("messages", function(messages, id) { + for(var i = 0; i < filters.length; i++) { + filters[i].trigger(messages, id); + } + }); + + + var g_seed = 1; + function postData(data, cb) { + data._seed = g_seed; + if(cb) { + eth._callbacks[data._seed] = cb; + } + + if(data.args === undefined) { + data.args = []; + } + + g_seed++; + + window._messagingAdapter.call(this, JSON.stringify(data)) + } +})(this); |