/** * Simulates an XMLHttpRequest object's methods and properties but is backed by a * {@link Ext.ux.ajax.Simlet} instance that provides the data. */Ext.define('Ext.ux.ajax.SimXhr', { readyState: 0, mgr: null, simlet: null, constructor: function(config) { var me = this; Ext.apply(me, config); me.requestHeaders = {}; }, abort: function() { var me = this; if (me.timer) { Ext.undefer(me.timer); me.timer = null; } me.aborted = true; }, getAllResponseHeaders: function() { var headers = []; if (Ext.isObject(this.responseHeaders)) { Ext.Object.each(this.responseHeaders, function(name, value) { headers.push(name + ': ' + value); }); } return headers.join('\x0d\x0a'); }, getResponseHeader: function(header) { var headers = this.responseHeaders; return (headers && headers[header]) || null; }, open: function(method, url, async, user, password) { var me = this; me.method = method; me.url = url; me.async = async !== false; me.user = user; me.password = password; me.setReadyState(1); }, overrideMimeType: function(mimeType) { this.mimeType = mimeType; }, schedule: function() { var me = this, delay = me.simlet.delay || me.mgr.delay; if (delay) { me.timer = Ext.defer(function() { me.onTick(); }, delay); } else { me.onTick(); } }, send: function(body) { var me = this; me.body = body; if (me.async) { me.schedule(); } else { me.onComplete(); } }, setReadyState: function(state) { var me = this; if (me.readyState !== state) { me.readyState = state; me.onreadystatechange(); } }, setRequestHeader: function(header, value) { this.requestHeaders[header] = value; }, // handlers onreadystatechange: Ext.emptyFn, onComplete: function() { var me = this, callback, text; me.readyState = 4; Ext.apply(me, me.simlet.exec(me)); callback = me.jsonpCallback; if (callback) { text = callback + '(' + me.responseText + ')'; eval(text); } }, onTick: function() { var me = this; me.timer = null; me.onComplete(); if (me.onreadystatechange) { me.onreadystatechange(); } }});