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authorMarian Oancea <contact@siteshop.ro>2014-11-06 01:46:01 +0800
committerMarian Oancea <contact@siteshop.ro>2014-11-06 01:46:01 +0800
commit4be4db5e6cfdde4ba5c1243b2bafeb6bbae3643c (patch)
treec368675984eb642f13334f2e61f6401d58776863 /lib/websocket.js
parent3e174a08790ca009a2107a3564b179ae1f036c33 (diff)
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Converted to node module
Converted to npm package Added brower Added browserify with minification Updated Readme
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+/*
+ 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
+ */
+
+var WebSocket = require('ws'); // jshint ignore:line
+
+
+var WebSocketProvider = function(host) {
+ // onmessage handlers
+ this.handlers = [];
+ // queue will be filled with messages if send is invoked before the ws is ready
+ this.queued = [];
+ this.ready = false;
+
+ this.ws = new WebSocket(host);
+
+ var self = this;
+ this.ws.onmessage = function(event) {
+ for(var i = 0; i < self.handlers.length; i++) {
+ self.handlers[i].call(self, JSON.parse(event.data), event);
+ }
+ };
+
+ this.ws.onopen = function() {
+ self.ready = true;
+
+ for(var i = 0; i < self.queued.length; i++) {
+ // Resend
+ self.send(self.queued[i]);
+ }
+ };
+};
+WebSocketProvider.prototype.send = function(payload) {
+ if(this.ready) {
+ var data = JSON.stringify(payload);
+
+ this.ws.send(data);
+ } else {
+ this.queued.push(payload);
+ }
+};
+
+WebSocketProvider.prototype.onMessage = function(handler) {
+ this.handlers.push(handler);
+};
+
+WebSocketProvider.prototype.unload = function() {
+ this.ws.close();
+};
+Object.defineProperty(WebSocketProvider.prototype, "onmessage", {
+ set: function(provider) { this.onMessage(provider); }
+});
+
+module.exports = WebSocketProvider;