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