jQuery.extend({
handleError: function( s, xhr, status, e ) {
// If a local callback was specified, fire it
if ( s.error ) {
s.error.call( s.context || s, xhr, status, e );
}
// Fire the global callback
if ( s.global ) {
(s.context ? jQuery(s.context) : jQuery.event).trigger( "ajaxError", [xhr, s, e] );
}
},
createUploadIframe: function(id, uri)
{
var frameId = 'jUploadFrame' + id;
if(window.ActiveXObject) {
if(jQuery.browser.version=="9.0")
{
io = document.createElement('iframe');
io.id = frameId;
io.name = frameId;
}
else if(jQuery.browser.version=="6.0" || jQuery.browser.version=="7.0" || jQuery.browser.version=="8.0")
{
var io = document.createElement('<iframe id="' + frameId + '" name="' + frameId + '" />');
if(typeof uri== 'boolean'){
io.src = 'javascript:false';
}
else if(typeof uri== 'string'){
io.src = uri;
}
}
}
else {
var io = document.createElement('iframe');
io.id = frameId;
io.name = frameId;
}
io.style.position = 'absolute';
io.style.top = '-1000px';
io.style.left = '-1000px';
document.body.appendChild(io);
return io;
},
ajaxUpload:function(s,xml){
//if((fromFiles.nodeType&&!((fileList=fromFiles.files)&&fileList[0].name)))
var uid = new Date().getTime(),idIO='jUploadFrame'+uid,_this=this;
var jIO=$('<iframe name="'+idIO+'" id="'+idIO+'" style="display:none">').appendTo('body');
var jForm=$('<form action="'+s.url+'" target="'+idIO+'" method="post" enctype="multipart/form-data"></form>').appendTo('body');
var oldElement = $('#'+s.fileElementId);
var newElement = $(oldElement).clone();
$(oldElement).attr('id', 'jUploadFile'+uid);
$(oldElement).before(newElement);
$(oldElement).appendTo(jForm);
this.remove=function()
{
if(_this!==null)
{
jNewFile.before(jOldFile).remove();
jIO.remove();jForm.remove();
_this=null;
}
}
this.onLoad=function(){
var data=$(jIO[0].contentWindow.document.body).text();
try{
if(data!=undefined){
data = eval('(' + data + ')');
try {
if (s.success)
s.success(data, status);
// Fire the global callback
if(s.global)
jQuery.event.trigger("ajaxSuccess", [xml, s]);
if (s.complete)
s.complete(data, status);
xml = null;
} catch(e)
{
status = "error";
jQuery.handleError(s, xml, status, e);
}
// The request was completed
if(s.global)
jQuery.event.trigger( "ajaxComplete", [xml, s] );
// Handle the global AJAX counter
if (s.global && ! --jQuery.active )
jQuery.event.trigger("ajaxStop");
// Process result
}
}catch(ex){
alert(ex.message);
};
}
this.start=function(){jForm.submit();jIO.load(_this.onLoad);};
return this;
},
createUploadForm: function(id, url,fileElementId, data)
{
//create form
var formId = 'jUploadForm' + id;
var fileId = 'jUploadFile' + id;
var form = jQuery('<form action="'+url+'" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>');
if(data)
{
for(var i in data)
{
jQuery('<input type="hidden" name="' + i + '" value="' + data[i] + '" />').appendTo(form);
}
}
var oldElement = jQuery('#' + fileElementId);
var newElement = jQuery(oldElement).clone();
jQuery(oldElement).attr('id', fileId);
jQuery(oldElement).before(newElement);
jQuery(oldElement).appendTo(form);
//set attributes
jQuery(form).css('position', 'absolute');
jQuery(form).css('top', '-1200px');
jQuery(form).css('left', '-1200px');
jQuery(form).appendTo('body');
return form;
},
ajaxFileUpload: function(s) {
// TODO introduce global settings, allowing the client to modify them for all requests, not only timeout
// Create the request object
var xml = {};
s = jQuery.extend({}, jQuery.ajaxSettings, s);
if(window.ActiveXObject){
var upload = new jQuery.ajaxUpload(s,xml);
upload.start();
}else{
var id = new Date().getTime();
var form = jQuery.createUploadForm(id,s.url, s.fileElementId, (typeof(s.data)=='undefined'?false:s.data));
var io = jQuery.createUploadIframe(id, s.secureuri);
var frameId = 'jUploadFrame' + id;
var formId = 'jUploadForm' + id;
// Watch for a new set of requests
if ( s.global && ! jQuery.active++ )
{
jQuery.event.trigger( "ajaxStart" );
}
var requestDone = false;
if ( s.global )
jQuery.event.trigger("ajaxSend", [xml, s]);
// Wait for a response to come back
var uploadCallback = function(isTimeout)
{
var io = document.getElementById(frameId);
try
{
if(io.contentWindow)
{
xml.responseText = io.contentWindow.document.body?io.contentWindow.document.body.innerHTML:null;
xml.responseXML = io.contentWindow.document.XMLDocument?io.contentWindow.document.XMLDocument:io.contentWindow.document;
}else if(io.contentDocument)
{
xml.responseText = io.contentDocument.document.body?io.contentDocument.document.body.innerHTML:null;
xml.responseXML = io.contentDocument.document.XMLDocument?io.contentDocument.document.XMLDocument:io.contentDocument.document;
}
}catch(e)
{
jQuery.handleError(s, xml, null, e);
}
if ( xml || isTimeout == "timeout")
{
requestDone = true;
var status;
try {
status = isTimeout != "timeout" ? "success" : "error";
// Make sure that the request was successful or notmodified
if ( status != "error" )
{
// process the data (runs the xml through httpData regardless of callback)
var data = jQuery.uploadHttpData(xml, s.dataType);
// If a local callback was specified, fire it and pass it the data
if (s.success)
s.success(data, status);
// Fire the global callback
if(s.global)
jQuery.event.trigger("ajaxSuccess", [xml, s]);
if (s.complete)
s.complete(data, status);
} else
jQuery.handleError(s, xml, status);
} catch(e)
{
status = "error";
jQuery.handleError(s, xml, status, e);
}
// The request was completed
if(s.global)
jQuery.event.trigger( "ajaxComplete", [xml, s] );
// Handle the global AJAX counter
if (s.global && ! --jQuery.active )
jQuery.event.trigger("ajaxStop");
// Process result
jQuery(io).unbind();
setTimeout(function()
{ try
{
jQuery(io).remove();
jQuery(form).remove();
} catch(e)
{
jQuery.handleError(s, xml, null, e);
}
}, 100);
xml = null;
}
};
// Timeout checker
if (s.timeout>0)
{
setTimeout(function(){
// Check to see if the request is still happening
if( !requestDone ) uploadCallback("timeout");
}, s.timeout);
}
try
{
var form = jQuery('#' + formId);
jQuery(form).attr('action', s.url);
jQuery(form).attr('method', 'POST');
jQuery(form).attr('target', frameId);
if(form.encoding)
{
jQuery(form).attr('encoding', 'multipart/form-data');
}
else
{
jQuery(form).attr('enctype', 'multipart/form-data');
}
jQuery(form).submit();
} catch(e)
{
jQuery.handleError(s, xml, null, e);
}
jQuery('#'+ frameId).load(uploadCallback);
return {abort: function () {}};
}
},
uploadHttpData: function( r, type ) {
var data = !type;
data = type == "xml" || data ? r.responseXML : r.responseText;
// If the type is "script", eval it in global context
if ( type == "script" )
jQuery.globalEval( data );
// Get the JavaScript object, if JSON is used.
if ( type == "json" ){
eval( "data = " + $(data).html() );
}
// evaluate scripts within html
if ( type == "html" )
jQuery("<div>").html(data).evalScripts();
return data;
}
});
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