1 var WPAjax = Class.create();
2 Object.extend(WPAjax.prototype, Ajax.Request.prototype);
3 Object.extend(WPAjax.prototype, {
4 WPComplete: false, // onComplete function
5 WPError: false, // onWPError function
6 defaultUrl: '', // We get these from WPAjaxL10n
11 initialize: function(url, responseEl) {
13 this.transport = Ajax.getTransport();
14 if ( !this.transport )
17 parameters: 'cookie=' + encodeURIComponent(document.cookie),
18 onComplete: function(transport) { // transport = XMLHttpRequest object
19 if ( tempObj.parseAjaxResponse() ) {
20 if ( 'function' == typeof tempObj.WPComplete )
21 tempObj.WPComplete(transport);
22 } else if ( 'function' == typeof tempObj.WPError ) // if response corresponds to an error (bad data, say, not 404)
23 tempObj.WPError(transport);
26 this.url = url ? url : this.defaultUrl;
27 this.getResponseElement(responseEl);
29 addArg: function(key, value) {
31 a[encodeURIComponent(key)] = encodeURIComponent(value);
32 this.options.parameters = $H(this.options.parameters).merge(a);
34 getResponseElement: function(r) {
37 new Insertion.Bottom(r, "<span id='" + r + "-p'></span>");
40 this.myResponseElement = p;
42 parseAjaxResponse: function() { // 1 = good, 0 = strange (bad data?), -1 = you lack permission
43 if ( this.transport.responseXML && typeof this.transport.responseXML == 'object' && ( this.transport.responseXML.xml || 'undefined' == typeof this.transport.responseXML.xml ) ) {
44 var err = this.transport.responseXML.getElementsByTagName('wp_error');
46 var msg = $A(err).inject( '', function(a, b) { return a + '<p>' + b.firstChild.nodeValue + '</p>'; } );
47 Element.update(this.myResponseElement,'<div class="error">' + msg + '</div>');
52 var r = this.transport.responseText;
54 Element.update(this.myResponseElement,'<div class="error"><p>' + r + '</p></div>');
57 var r = parseInt(r,10);
59 Element.update(this.myResponseElement,"<div class='error'><p>" + this.permText + "</p></div>");
61 } else if ( 0 == r ) {
62 Element.update(this.myResponseElement,"<div class='error'><p>" + this.strangeText + "</p></div>");
67 addOnComplete: function(f) {
68 if ( 'function' == typeof f ) { var of = this.WPComplete; this.WPComplete = function(t) { if ( of ) of(t); f(t); } }
70 addOnWPError: function(f) {
71 if ( 'function' == typeof f ) { var of = this.WPError; this.WPError = function(t) { if ( of ) of(t); f(t); } }
73 notInitialized: function() {
74 return this.transport ? false : true;
78 Event.observe( window, 'load', function() { Object.extend(WPAjax.prototype, WPAjaxL10n); }, false )
80 Ajax.activeSendCount = 0;
81 Ajax.Responders.register( {
82 onCreate: function() {
83 Ajax.activeSendCount++;
84 if ( 1 != Ajax.activeSendCount )
86 wpBeforeUnload = window.onbeforeunload;
87 window.onbeforeunload = function() {
88 return WPAjax.whoaText;
91 onLoading: function() { // Can switch to onLoaded if we lose data
92 Ajax.activeSendCount--;
93 if ( 0 != Ajax.activeSendCount )
95 window.onbeforeunload = wpBeforeUnload;
99 //Pretty func adapted from ALA http://www.alistapart.com/articles/gettingstartedwithajax
100 function getNodeValue(tree,el){try { var r = tree.getElementsByTagName(el)[0].firstChild.nodeValue; } catch(err) { var r = null; } return r; }