X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/2e847cf21b8ab9d15fa167b315ca5b2fa92638fc..6a7e4474cba9d8be4b2ec445e10f1691f7277c50:/docs/source/jsonp.html?ds=sidebyside
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+
+
+
+ The source code
+
+
+
+
+ /*!
+ * Ext JS Library 3.2.0
+ * Copyright(c) 2006-2010 Ext JS, Inc.
+ * licensing@extjs.com
+ * http://www.extjs.com/license
+ */
+Ext.ns('Ext.ux');
+
+Ext.ux.JSONP = (function(){
+ var _queue = [],
+ _current = null,
+ _nextRequest = function() {
+ _current = null;
+ if(_queue.length) {
+ _current = _queue.shift();
+ _current.script.src = _current.url + '?' + _current.params;
+ document.getElementsByTagName('head')[0].appendChild(_current.script);
+ }
+ };
+
+ return {
+ request: function(url, o) {
+ if(!url) {
+ return;
+ }
+ var me = this;
+
+ o.params = o.params || {};
+ if(o.callbackKey) {
+ o.params[o.callbackKey] = 'Ext.ux.JSONP.callback';
+ }
+ var params = Ext.urlEncode(o.params);
+
+ var script = document.createElement('script');
+ script.type = 'text/javascript';
+
+ if(o.isRawJSON) {
+ if(Ext.isIE) {
+ Ext.fly(script).on('readystatechange', function() {
+ if(script.readyState == 'complete') {
+ var data = script.innerHTML;
+ if(data.length) {
+ me.callback(Ext.decode(data));
+ }
+ }
+ });
+ }
+ else {
+ Ext.fly(script).on('load', function() {
+ var data = script.innerHTML;
+ if(data.length) {
+ me.callback(Ext.decode(data));
+ }
+ });
+ }
+ }
+
+ _queue.push({
+ url: url,
+ script: script,
+ callback: o.callback || function(){},
+ scope: o.scope || window,
+ params: params || null
+ });
+
+ if(!_current) {
+ _nextRequest();
+ }
+ },
+
+ callback: function(json) {
+ _current.callback.apply(_current.scope, [json]);
+ Ext.fly(_current.script).removeAllListeners();
+ document.getElementsByTagName('head')[0].removeChild(_current.script);
+ _nextRequest();
+ }
+ }
+})();
+
+
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