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// JavaScript Document
jQuery.extend({
createUploadIframe: function(id, uri)
{
//create frame
var frameId = 'jUploadFrame' + id;
if(window.ActiveXObject) {
//var io = document.createElement('<iframe id="' + frameId + '" name="' + frameId + '" />');
if(jQuery.browser.version=="9.0" || jQuery.browser.version=="10.0"){
var 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;
},
createUploadForm: function(id, fileElementId, data)
{
//create form
var formId = 'jUploadForm' + id;
var fileId = 'jUploadFile' + id;
var form = jQuery('<form action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>');
var oldElement = jQuery('#' + fileElementId);
var newElement = jQuery(oldElement).clone();
jQuery(oldElement).attr('id', fileId);
jQuery(oldElement).before(newElement);
jQuery(oldElement).appendTo(form);
//add data
if(data) {
for (var i in data) {
$('<input type="hidden" name="' + i + '" value="' + data[i] + '" />').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
s = jQuery.extend({}, jQuery.ajaxSettings, s);
var id = s.id;
//var id = s.fileElementId;
var form = jQuery.createUploadForm(id, s.fileElementId,s.data);
var io = jQuery.createUploadIframe(id, s.secureuri);
var frameId = 'jUploadFrame' + id;
var formId = 'jUploadForm' + id;
if( s.global && ! jQuery.active++ ){
// Watch for a new set of requests
jQuery.event.trigger( "ajaxStart" );
}
var requestDone = false;
// Create the request object
var xml = {};
if( s.global ){
jQuery.event.trigger("ajaxSend", [xml, s]);
}
var uploadCallback = function(isTimeout){
// Wait for a response to come back
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( s.success ){
// ifa local callback was specified, fire it and pass it the data
s.success( data, status );
};
if( s.global ){
// Fire the global callback
jQuery.event.trigger( "ajaxSuccess", [xml, s] );
};
} else{
jQuery.handleError(s, xml, status);
}
} catch(e){
status = "error";
jQuery.handleError(s, xml, status, e);
};
if( s.global ){
// The request was completed
jQuery.event.trigger( "ajaxComplete", [xml, s] );
};
// Handle the global AJAX counter
if(s.global && ! --jQuery.active){
jQuery.event.trigger("ajaxStop");
};
if(s.complete){
s.complete(xml, status);
};
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(){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){
form.encoding = 'multipart/form-data';
}else{
form.enctype = 'multipart/form-data';
}
jQuery(form).submit();
} catch(e){
jQuery.handleError(s, xml, null, e);
}
/*if(window.attachEvent){
document.getElementById(frameId).attachEvent('onload', uploadCallback);
}
else{
document.getElementById(frameId).addEventListener('load', uploadCallback, false);
} */
jQuery('#' + frameId).load(uploadCallback);
return {abort: function () {}};
},
uploadHttpData: function( r, type ) {
var data = !type;
data = type == "xml" || data ? r.responseXML : r.responseText;
// ifthe type is "script", eval it in global context
if( type == "script" ){
jQuery.globalEval( data );
}
// Get the JavaScript object, ifJSON is used.
if( type == "json" ){
data = r.responseText;
var start = data.indexOf(">");
if(start != -1) {
var end = data.indexOf("<", start + 1);
if(end != -1) {
data = data.substring(start + 1, end);
}
}
eval( "data = " + data);
}
// evaluate scripts within html
if( type == "html" ){
jQuery("<div>").html(data).evalScripts();
}
return data;
},
/*handleError: function( s, xml, status, e ) {
// If a local callback was specified, fire it
if ( s.error )
s.error( xml, status, e );
// Fire the global callback
if ( s.global )
jQuery.event.trigger( "ajaxError", [xml, s, e] );
}*/
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] );
}
}
});
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