autoprovider, buildQt not builds only necessery files, fixed gulpfile

2 files changed, 107 insertions, 0 deletions

diff --git a/lib/autoprovider.js b/lib/autoprovider.js
new file mode 100644
index 000000000..b05d4190a
--- /dev/null
+++ b/lib/autoprovider.js
@@ -0,0 +1,103 @@
+/*
+    This file is part of ethereum.js.
+
+    ethereum.js is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    ethereum.js is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/** @file websocket.js
+ * @authors:
+ *   Marek Kotewicz <marek@ethdev.com>
+ *   Marian Oancea <marian@ethdev.com>
+ * @date 2014
+ */
+
+/*
+ * @brief if qt object is available, uses QtProvider,
+ * if not tries to connect over websockets
+ * if it fails, it uses HttpRpcProvider
+ */
+if (process.env.NODE_ENV !== 'build') {
+    var WebSocket = require('ws'); // jshint ignore:line
+}
+
+if (process.env.NODE_ENV !== 'build') {
+    var web3 = require('./web3'); // jshint ignore:line
+}
+
+var AutoProvider = function (userOptions) {
+    if (web3.haveProvider()) {
+        return;
+    }
+
+    // before we determine what provider we are, we have to cache request
+    this.sendQueue = [];
+    this.onmessageQueue = [];
+
+    if (navigator.qt) {
+        this.provider = new web3.providers.QtProvider();
+        return;
+    }
+   
+    userOptions = userOptions || {};
+    var options = {
+        httprpc: userOptions.httprpc || 'http://localhost:8080',
+        websockets: userOptions.websockets || 'ws://localhost:40404/eth'
+    };
+    
+    var self = this;
+    var closeWithSuccess = function (success) {
+        ws.close();
+        if (success) {
+            self.provider = new web3.providers.WebSocketProvider(options.websockets);
+            return;
+        }
+        self.provider = new web3.providers.HttpRpcProvider(options.httprpc);
+        self.poll = self.provider.poll.bind(self.provider);
+        self.sendQueue.forEach(function (payload) {
+            self.provider(payload);
+        });
+        self.onmessageQueue.forEach(function (handler) {
+            self.provider.onmessage = handler;
+        });
+    };
+
+    var ws = new WebSocket(options.websockets);
+
+    ws.onopen = function() {
+        closeWithSuccess(true);    
+    };
+
+    ws.onerror = function() {
+        closeWithSuccess(false);
+    };
+};
+
+AutoProvider.prototype.send = function (payload) {
+    if (this.provider) {
+        this.provider.send(payload);
+        return;
+    }
+    this.sendQueue.push(payload);
+};
+
+Object.defineProperty(AutoProvider.prototype, 'onmessage', {
+    set: function (handler) {
+        if (this.provider) {
+            this.provider.onmessage = handler;
+            return;
+        }
+        this.onmessageQueue.push(handler);
+    }
+});
+
+module.exports = AutoProvider;
diff --git a/lib/main.js b/lib/main.js
index d751f8527..c3ed22f8b 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -387,6 +387,10 @@ web3.setProvider = function(provider) {
     web3.provider.sendQueued();
 };
 
+web3.haveProvider = function() {
+    return !!web3.provider.provider;
+};
+
 var Filter = function(options, impl) {
     this.impl = impl;
     this.callbacks = [];