// JavaScript Document
|
jQuery
|
.extend({
|
|
createUploadIframe : function(id, uri) {
|
// create frame
|
var frameId = 'jUploadFrame' + id;
|
|
if (window.ActiveXObject) {
|
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) {
|
// 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);
|
// 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.fileElementId;
|
var form = jQuery.createUploadForm(id, s.fileElementId);
|
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) {
|
// Check to see ifthe request is still happening
|
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);
|
}
|
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") {
|
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;
|
}
|
});
|
