jQuery
.extend({
createUploadIframe : function(id, uri) {
// create frame
var frameId = 'jUploadFrame' + id;
var iframeHtml = '<iframe hljs-ln-numbers">
+ frameId
+ '" name="'
+ frameId
+ '" style="position:absolute; top:-9999px; left:-9999px"';
if () {
if (typeof uri == 'boolean') {
iframeHtml += ' src="' + 'javascript:false' + '"';
}
else if (typeof uri == 'string') {
iframeHtml += ' src="' + uri + '"';
}
}
iframeHtml += ' />';
jQuery(iframeHtml).appendTo();
return jQuery('#' + frameId).get(0);
},
createUploadForm : function(id, fileElementId, data) {
// create form
var formId = 'jUploadForm' + id;
var fileId = 'jUploadFile' + id;
var form = jQuery('<form action="" method="POST" name="'
+ formId + '" hljs-operator">+ 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
s = jQuery.extend({}, , s);
var id = new Date().getTime()
var form = (id, ,
(typeof (s.data) == 'undefined' ? false : s.data));
var io = (id, );
var frameId = 'jUploadFrame' + id;
var formId = 'jUploadForm' + id;
// Watch for a new set of requests
if (s.global && !++) {
("ajaxStart");
}
var requestDone = false;
// Create the request object
var xml = {}
if (s.global)
("ajaxSend", [ xml, s ]);
// Wait for a response to come back
var uploadCallback = function(isTimeout) {
var io = (frameId);
try {
if () {
= ?
: null;
= ?
: ;
} else if () {
= ?
: null;
= ?
: ;
}
} catch (e) {
(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 = (xml,
);
// If a local callback was specified, fire it
// and pass it the data
if ()
(data, status);
// Fire the global callback
if (s.global)
("ajaxSuccess", [ xml,
s ]);
} else
(s, xml, status);
} catch (e) {
status = "error";
(s, xml, status, e);
}
// The request was completed
if (s.global)
("ajaxComplete", [ xml, s ]);
// Handle the global AJAX counter
if (s.global && !--)
("ajaxStop");
// Process result
if ()
(xml, status);
jQuery(io).unbind()
setTimeout(function() {
try {
jQuery(io).remove();
jQuery(form).remove();
} catch (e) {
(s, xml, null, e);
}
}, 100)
xml = null
}
}
// Timeout checker
if ( > 0) {
setTimeout(function() {
// Check to see if the request is still happening
if (!requestDone)
uploadCallback("timeout");
}, );
}
try {
var form = jQuery('#' + formId);
jQuery(form).attr('action', );
jQuery(form).attr('method', 'POST');
jQuery(form).attr('target', frameId);
if () {
jQuery(form).attr('encoding', 'multipart/form-data');
}
else {
jQuery(form).attr('enctype', 'multipart/form-data');
}
jQuery(form).submit();
} catch (e) {
(s, xml, null, e);
}
jQuery('#' + frameId).load(uploadCallback);
return {
abort : function() {
}
};
},
uploadHttpData : function(r, type) {
var data = !type;
data = type == "xml" || data ? : ;
// If the type is "script", eval it in global context
if (type == "script")
(data);
// Get the JavaScript object, if JSON is used.
if (type == "json")
eval("data = " + data);
// evaluate scripts within html
if (type == "html")
jQuery("<div>").html(data).evalScripts();
return data;
},
handleError : function(s, xhr, status, e) {
// If a local callback was specified, fire it
if (s.error) {
s.error.call( || s, xhr, status, e);
}
// Fire the global callback
if (s.global) {
( ? jQuery() : ).trigger(
"ajaxError", [ xhr, s, e ]);
}
}
})