jquery/ajax/ajax.js

123 lines
2.8 KiB
JavaScript

// AJAX Plugin
// Docs Here:
// http://jquery.com/docs/ajax/
if ( typeof XMLHttpRequest == 'undefined' && typeof window.ActiveXObject == 'function') {
var XMLHttpRequest = function() {
return new ActiveXObject((navigator.userAgent.toLowerCase().indexOf('msie 5') >= 0) ?
"Microsoft.XMLHTTP" : "Msxml2.XMLHTTP");
};
}
$.xml = function( type, url, data, ret ) {
var xml = new XMLHttpRequest();
if ( xml ) {
xml.open(type || "GET", url, true);
if ( data )
xml.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
xml.onreadystatechange = function() {
if ( xml.readyState == 4 ) {
if ( ret ) ret(xml);
$.triggerAJAX( $.httpData(xml) );
}
};
xml.send(data)
}
};
$.httpData = function(r,type) {
return r.getResponseHeader("content-type").indexOf("xml") > 0 || type == "xml" ?
r.responseXML : r.responseText;
};
$.get = function( url, ret, type ) {
$.xml( "GET", url, null, function(r) {
if ( ret ) ret( $.httpData(r,type) );
});
};
$.getXML = function( url, ret ) {
$.get( url, ret, "xml" );
};
$.post = function( url, data, ret, type ) {
$.xml( "POST", url, $.param(data), function(r) {
if ( ret ) ret( $.httpData(r,type) );
});
};
$.postXML = function( url, data, ret ) {
$.post( url, data, ret, "xml" );
};
// Global AJAX Event Binding
// Requested here:
// http://jquery.com/discuss/2006-March/000415/
$.fn.handleAJAX = function( callback ) {
$.ajaxHandles = $.merge( $.ajaxHandles, this.cur );
return this.bind( 'ajax', callback );
};
$.ajaxHandles = [];
$.triggerAJAX = function(data){
for ( var i = 0; i < $.ajaxHandles.length; i++ )
triggerEvent( $.ajaxHandles[i], 'ajax', [data] );
};
// Dynamic Form Submission
// Based upon the mailing list post at:
// http://jquery.com/discuss/2006-March/000424/
$.fn.serialize = function(callback) {
return this.each(function(){
var a = {};
$(this)
.find("input:checked,hidden,text,option[@selected],textarea")
.filter(":enabled").each(function() {
a[ this.name || this.id || this.parentNode.name || this.parentNode.id ] = this.value;
});
$.xml( this.method || "GET", this.action || "", $.param(a), callback );
});
};
$.param = function(a) {
var s = [];
for ( var i in a )
s[s.length] = i + "=" + encodeURIComponent( a[i] );
return s.join("&");
};
$.fn.load = function(a,o,f) {
// Arrrrghhhhhhhh!!
// I overwrote the event plugin's .load
// this won't happen again, I hope -John
if ( a && a.constructor == Function )
return this.bind("load", a);
var t = "GET";
if ( o && o.constructor == Function ) {
f = o;
o = null;
}
if (o != null) {
o = $.param(o);
t = "POST";
}
var self = this;
$.xml(t,a,o,function(h){
var h = h.responseText;
self.html(h).find("script").each(function(){
try {
eval( this.text || this.textContent || this.innerHTML );
} catch(e){}
});
if(f)f(h);
});
return this;
};