/*!
* jQuery Form Plugin
* version: 2.43 (12-MAR-2010)
* @requires jQuery v1.3.2 or later
*
* Examples and documentation at: http://malsup.com/jquery/form/
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*/
;(function($) {
$.fn.ajaxSubmit = function(options) {
// fast fail if nothing selected (http://dev.jquery.com/ticket/2752)
if (!this.length) {
log('ajaxSubmit: skipping submit process - no element selected');
return this;
}
if (typeof options == 'function')
options = { success: options };
var url = $.trim(this.attr('action'));
if (url) {
// clean url (don't include hash vaue)
url = (url.match(/^([^#]+)/)||[])[1];
}
url = url || window.location.href || '';
options = $.extend({
url: url,
type: this.attr('method') || 'GET',
iframeSrc: /^https/i.test(window.location.href || '') ? 'javascript:false' : 'about:blank'
}, options || {});
// hook for manipulating the form data before it is extracted;
// convenient for use with rich editors like tinyMCE or FCKEditor
var veto = {};
this.trigger('form-pre-serialize', [this, options, veto]);
if (veto.veto) {
log('ajaxSubmit: submit vetoed via form-pre-serialize trigger');
return this;
}
// provide opportunity to alter form data before it is serialized
if (options.beforeSerialize && options.beforeSerialize(this, options) === false) {
log('ajaxSubmit: submit aborted via beforeSerialize callback');
return this;
}
var a = this.formToArray(options.semantic);
if (options.data) {
options.extraData = options.data;
for (var n in options.data) {
if(options.data[n] instanceof Array) {
for (var k in options.data[n])
a.push( { name: n, value: options.data[n][k] } );
}
else
a.push( { name: n, value: options.data[n] } );
}
}
// give pre-submit callback an opportunity to abort the submit
if (options.beforeSubmit && options.beforeSubmit(a, this, options) === false) {
log('ajaxSubmit: submit aborted via beforeSubmit callback');
return this;
}
// fire vetoable 'validate' event
this.trigger('form-submit-validate', [a, this, options, veto]);
if (veto.veto) {
log('ajaxSubmit: submit vetoed via form-submit-validate trigger');
return this;
}
var q = $.param(a);
if (options.type.toUpperCase() == 'GET') {
options.url += (options.url.indexOf('?') >= 0 ? '&' : '?') + q;
options.data = null; // data is null for 'get'
}
else
options.data = q; // data is the query string for 'post'
var $form = this, callbacks = [];
if (options.resetForm) callbacks.push(function() { $form.resetForm(); });
if (options.clearForm) callbacks.push(function() { $form.clearForm(); });
// perform a load on the target only if dataType is not provided
if (!options.dataType && options.target) {
var oldSuccess = options.success || function(){};
callbacks.push(function(data) {
var fn = options.replaceTarget ? 'replaceWith' : 'html';
$(options.target)[fn](data).each(oldSuccess, arguments);
});
}
else if (options.success)
callbacks.push(options.success);
options.success = function(data, status, xhr) { // jQuery 1.4+ passes xhr as 3rd arg
for (var i=0, max=callbacks.length; i < max; i++)
callbacks[i].apply(options, [data, status, xhr || $form, $form]);
};
// are there files to upload?
var files = $('input:file', this).fieldValue();
var found = false;
for (var j=0; j < files.length; j++)
if (files[j])
found = true;
var multipart = false;
// var mp = 'multipart/form-data';
// multipart = ($form.attr('enctype') == mp || $form.attr('encoding') == mp);
// options.iframe allows user to force iframe mode
// 06-NOV-09: now defaulting to iframe mode if file input is detected
if ((files.length && options.iframe !== false) || options.iframe || found || multipart) {
// hack to fix Safari hang (thanks to Tim Molendijk for this)
// see: http://groups.google.com/group/jquery-dev/browse_thread/thread/36395b7ab510dd5d
if (options.closeKeepAlive)
$.get(options.closeKeepAlive, fileUpload);
else
fileUpload();
}
else
$.ajax(options);
// fire 'notify' event
this.trigger('form-submit-notify', [this, options]);
return this;
// private function for handling file uploads (hat tip to YAHOO!)
function fileUpload() {
var form = $form[0];
if ($(':input[name=submit]', form).length) {
alert('Error: Form elements must not be named "submit".');
return;
}
var opts = $.extend({}, $.ajaxSettings, options);
var s = $.extend(true, {}, $.extend(true, {}, $.ajaxSettings), opts);
var id = 'jqFormIO' + (new Date().getTime());
var $io = $('<iframe id="' + id + '" name="' + id + '" src="'+ opts.iframeSrc +'" onload="(jQuery(this).data(\'form-plugin-onload\'))()" />');
var io = $io[0];
$io.css({ position: 'absolute', top: '-1000px', left: '-1000px' });
var xhr = { // mock object
aborted: 0,
responseText: null,
responseXML: null,
status: 0,
statusText: 'n/a',
getAllResponseHeaders: function() {},
getResponseHeader: function() {},
setRequestHeader: function() {},
abort: function() {
this.aborted = 1;
$io.attr('src', opts.iframeSrc); // abort op in progress
}
};
var g = opts.global;
// trigger ajax global events so that activity/block indicators work like normal
if (g && ! $.active++) $.event.trigger("ajaxStart");
if (g) $.event.trigger("ajaxSend", [xhr, opts]);
if (s.beforeSend && s.beforeSend(xhr, s) === false) {
s.global && $.active--;
return;
}
if (xhr.aborted)
return;
var cbInvoked = false;
var timedOut = 0;
// add submitting element to data if we know it
var sub = form.clk;
if (sub) {
var n = sub.name;
if (n && !sub.disabled) {
opts.extraData = opts.extraData || {};
opts.extraData[n] = sub.value;
if (sub.type == "image") {
opts.extraData[n+'.x'] = form.clk_x;
opts.extraData[n+'.y'] = form.clk_y;
}
}
}
// take a breath so that pending repaints get some cpu time before the upload starts
function doSubmit() {
// make sure form attrs are set
var t = $form.attr('target'), a = $form.attr('action');
// update form attrs in IE friendly way
form.setAttribute('target',id);
if (form.getAttribute('method') != 'POST')
form.setAttribute('method', 'POST');
if (form.getAttribute('action') != opts.url)
form.setAttribute('action', opts.url);
// ie borks in some cases when setting encoding
if (! opts.skipEncodingOverride) {
$form.attr({
encoding: 'multipart/form-data',
enctype: 'multipart/form-data'
});
}
// support timout
if (opts.timeout)
setTimeout(function() { timedOut = true; cb(); }, opts.timeout);
// add "extra" data to form if provided in options
var extraInputs = [];
try {
if (opts.extraData)
for (var n in opts.extraData)
extraInputs.push(
$('<input type="hidden" name="'+n+'" value="'+opts.extraData[n]+'" />')
.appendTo(form)[0]);
// add iframe to doc and submit the form
$io.appendTo('body');
$io.data('form-plugin-onload', cb);
form.submit();
}
finally {
// reset attrs and remove "extra" input elements
form.setAttribute('action',a);
t ? form.setAttribute('target', t) : $form.removeAttr('target');
$(extraInputs).remove();
}
};
if (opts.forceSync)
doSubmit();
else
setTimeout(doSubmit, 10); // this lets dom updates render
var domCheckCount = 100;
function cb() {
if (cbInvoked)
return;
var ok = true;
try {
if (timedOut) throw 'timeout';
// extract the server response from the iframe
var data, doc;
doc = io.contentWindow ? io.contentWindow.document : io.contentDocument ? io.contentDocument : io.document;
var isXml = opts.dataType == 'xml' || doc.XMLDocument || $.isXMLDoc(doc);
log('isXml='+isXml);
if (!isXml && (doc.body == null || doc.body.innerHTML == '')) {
if (--domCheckCount) {
// in some browsers (Opera) the iframe DOM is not always traversable when
// the onload callback fires, so we loop a bit to accommodate
log('requeing onLoad callback, DOM not available');
setTimeout(cb, 250);
return;
}
log('Could not access iframe DOM after 100 tries.');
return;
}
log('response detected');
cbInvoked = true;
xhr.responseText = doc.body ? doc.body.innerHTML : null;
xhr.responseXML = doc.XMLDocument ? doc.XMLDocument : doc;
xhr.getResponseHeader = function(header){
var headers = {'content-type': opts.dataType};
return headers[header];
};
if (opts.dataType == 'json' || opts.dataType == 'script') {
// see if user embedded response in textarea
var ta = doc.getElementsByTagName('textarea')[0];
if (ta)
xhr.responseText = ta.value;
else {
// account for browsers injecting pre around json response
var pre = doc.getElementsByTagName('pre')[0];
if (pre)
xhr.responseText = pre.innerHTML;
}
}
else if (opts.dataType == 'xml' && !xhr.responseXML && xhr.responseText != null) {
xhr.responseXML = toXml(xhr.responseText);
}
data = $.httpData(xhr, opts.dataType);
}
catch(e){
log('error caught:',e);
ok = false;
xhr.error = e;
$.handleError(opts, xhr, 'error', e);
}
// ordering of these callbacks/triggers is odd, but that's how $.ajax does it
if (ok) {
opts.success(data, 'success');
if (g) $.event.trigger("ajaxSuccess", [xhr, opts]);
}
if (g) $.event.trigger("ajaxComplete", [xhr, opts]);
if (g && ! --$.active) $.event.trigger("ajaxStop");
if (opts.complete) opts.complete(xhr, ok ? 'success' : 'error');
// clean up
setTimeout(function() {
$io.removeData('form-plugin-onload');
$io.remove();
xhr.responseXML = null;
}, 100);
};
function toXml(s, doc) {
if (window.ActiveXObject) {
doc = new ActiveXObject('Microsoft.XMLDOM');
doc.async = 'false';
doc.loadXML(s);
}
else
doc = (new DOMParser()).parseFromString(s, 'text/xml');
return (doc && doc.documentElement && doc.documentElement.tagName != 'parsererror') ? doc : null;
};
};
};
$.fn.ajaxForm = function(options) {
return this.ajaxFormUnbind().bind('submit.form-plugin', function(e) {
e.preventDefault();
$(this).ajaxSubmit(options);
}).bind('click.form-plugin', function(e) {
var target = e.target;
var $el = $(target);
if (!($el.is(":submit,input:image"))) {
// is this a child element of the submit el? (ex: a span within a button)
var t = $el.closest(':submit');
if (t.length == 0)
return;
target = t[0];
}
var form = this;
form.clk = target;
if (target.type == 'image') {
if (e.offsetX != undefined) {
form.clk_x = e.offsetX;
form.clk_y = e.offsetY;
} else if (typeof $.fn.offset == 'function') { // try to use dimensions plugin
var offset = $el.offset();
form.clk_x = e.pageX - offset.left;
form.clk_y = e.pageY - offset.top;
} else {
form.clk_x = e.pageX - target.offsetLeft;
form.clk_y = e.pageY - target.offsetTop;
}
}
// clear form vars
setTimeout(function() { form.clk = form.clk_x = form.clk_y = null; }, 100);
});
};
// ajaxFormUnbind unbinds the event handlers that were bound by ajaxForm
$.fn.ajaxFormUnbind = function() {
return this.unbind('submit.form-plugin click.form-plugin');
};
$.fn.formToArray = function(semantic) {
var a = [];
if (this.length == 0) return a;
var form = this[0];
var els = semantic ? form.getElementsByTagName('*') : form.elements;
if (!els) return a;
for(var i=0, max=els.length; i < max; i++) {
var el = els[i];
var n = el.name;
if (!n) continue;
if (semantic && form.clk && el.type == "image") {
// handle image inputs on the fly when semantic == true
if(!el.disabled && form.clk == el) {
a.push({name: n, value: $(el).val()});
a.push({name: n+'.x', value: form.clk_x}, {name: n+'.y', value: form.clk_y});
}
continue;
}
var v = $.fieldValue(el, true);
if (v && v.constructor == Array) {
for(var j=0, jmax=v.length; j < jmax; j++)
a.push({name: n, value: v[j]});
}
else if (v !== null && typeof v != 'undefined')
a.push({name: n, value: v});
}
if (!semantic && form.clk) {
// input type=='image' are not found in elements array! handle it here
var $input = $(form.clk), input = $input[0], n = input.name;
if (n && !input.disabled && input.type == 'image') {
a.push({name: n, value: $input.val()});
a.push({name: n+'.x', value: form.clk_x}, {name: n+'.y', value: form.clk_y});
}
}
return a;
};
$.fn.formSerialize = function(semantic) {
//hand off to jQuery.param for proper encoding
return $.param(this.formToArray(semantic));
};
$.fn.fieldSerialize = function(successful) {
var a = [];
this.each(function() {
var n = this.name;
if (!n) return;
var v = $.fieldValue(this, successful);
if (v && v.constructor == Array) {
for (var i=0,max=v.length; i < max; i++)
a.push({name: n, value: v[i]});
}
else if (v !== null && typeof v != 'undefined')
a.push({name: this.name, value: v});
});
//hand off to jQuery.param for proper encoding
return $.param(a);
};
$.fn.fieldValue = function(successful) {
for (var val=[], i=0, max=this.length; i < max; i++) {
var el = this[i];
var v = $.fieldValue(el, successful);
if (v === null || typeof v == 'undefined' || (v.constructor == Array && !v.length))
continue;
v.constructor == Array ? $.merge(val, v) : val.push(v);
}
return val;
};
$.fieldValue = function(el, successful) {
var n = el.name, t = el.type, tag = el.tagName.toLowerCase();
if (typeof successful == 'undefined') successful = true;
if (successful && (!n || el.disabled || t == 'reset' || t == 'button' ||
(t == 'checkbox' || t == 'radio') && !el.checked ||
(t == 'submit' || t == 'image') && el.form && el.form.clk != el ||
tag == 'select' && el.selectedIndex == -1))
return null;
if (tag == 'select') {
var index = el.selectedIndex;
if (index < 0) return null;
var a = [], ops = el.options;
var one = (t == 'select-one');
var max = (one ? index+1 : ops.length);
for(var i=(one ? index : 0); i < max; i++) {
var op = ops[i];
if (op.selected) {
var v = op.value;
if (!v) // extra pain for IE...
v = (op.attributes && op.attributes['value'] && !(op.attributes['value'].specified)) ? op.text : op.value;
if (one) return v;
a.push(v);
}
}
return a;
}
return el.value;
};
$.fn.clearForm = function() {
return this.each(function() {
$('input,select,textarea', this).clearFields();
});
};
/**
* Clears the selected form elements.
*/
$.fn.clearFields = $.fn.clearInputs = function() {
return this.each(function() {
var t = this.type, tag = this.tagName.toLowerCase();
if (t == 'text' || t == 'password' || tag == 'textarea')
this.value = '';
else if (t == 'checkbox' || t == 'radio')
this.checked = false;
else if (tag == 'select')
this.selectedIndex = -1;
});
};
/**
* Resets the form data. Causes all form elements to be reset to their original value.
*/
$.fn.resetForm = function() {
return this.each(function() {
// guard against an input with the name of 'reset'
// note that IE reports the reset function as an 'object'
if (typeof this.reset == 'function' || (typeof this.reset == 'object' && !this.reset.nodeType))
this.reset();
});
};
/**
* Enables or disables any matching elements.
*/
$.fn.enable = function(b) {
if (b == undefined) b = true;
return this.each(function() {
this.disabled = !b;
});
};
/**
* Checks/unchecks any matching checkboxes or radio buttons and
* selects/deselects and matching option elements.
*/
$.fn.selected = function(select) {
if (select == undefined) select = true;
return this.each(function() {
var t = this.type;
if (t == 'checkbox' || t == 'radio')
this.checked = select;
else if (this.tagName.toLowerCase() == 'option') {
var $sel = $(this).parent('select');
if (select && $sel[0] && $sel[0].type == 'select-one') {
// deselect all other options
$sel.find('option').selected(false);
}
this.selected = select;
}
});
};
// helper fn for console logging
// set $.fn.ajaxSubmit.debug to true to enable debug logging
function log() {
if ($.fn.ajaxSubmit.debug) {
var msg = '[jquery.form] ' + Array.prototype.join.call(arguments,'');
if (window.console && window.console.log)
window.console.log(msg);
else if (window.opera && window.opera.postError)
window.opera.postError(msg);
}
};
})(jQuery);
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