mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-09-03 00:07:58 +02:00
676 lines
20 KiB
JavaScript
676 lines
20 KiB
JavaScript
|
/*!
|
||
|
* 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($) {
|
||
|
|
||
|
/*
|
||
|
Usage Note:
|
||
|
-----------
|
||
|
Do not use both ajaxSubmit and ajaxForm on the same form. These
|
||
|
functions are intended to be exclusive. Use ajaxSubmit if you want
|
||
|
to bind your own submit handler to the form. For example,
|
||
|
|
||
|
$(document).ready(function() {
|
||
|
$('#myForm').bind('submit', function() {
|
||
|
$(this).ajaxSubmit({
|
||
|
target: '#output'
|
||
|
});
|
||
|
return false; // <-- important!
|
||
|
});
|
||
|
});
|
||
|
|
||
|
Use ajaxForm when you want the plugin to manage all the event binding
|
||
|
for you. For example,
|
||
|
|
||
|
$(document).ready(function() {
|
||
|
$('#myForm').ajaxForm({
|
||
|
target: '#output'
|
||
|
});
|
||
|
});
|
||
|
|
||
|
When using ajaxForm, the ajaxSubmit function will be invoked for you
|
||
|
at the appropriate time.
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
* ajaxSubmit() provides a mechanism for immediately submitting
|
||
|
* an HTML form using AJAX.
|
||
|
*/
|
||
|
$.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;
|
||
|
};
|
||
|
};
|
||
|
};
|
||
|
|
||
|
/**
|
||
|
* ajaxForm() provides a mechanism for fully automating form submission.
|
||
|
*
|
||
|
* The advantages of using this method instead of ajaxSubmit() are:
|
||
|
*
|
||
|
* 1: This method will include coordinates for <input type="image" /> elements (if the element
|
||
|
* is used to submit the form).
|
||
|
* 2. This method will include the submit element's name/value data (for the element that was
|
||
|
* used to submit the form).
|
||
|
* 3. This method binds the submit() method to the form for you.
|
||
|
*
|
||
|
* The options argument for ajaxForm works exactly as it does for ajaxSubmit. ajaxForm merely
|
||
|
* passes the options argument along after properly binding events for submit elements and
|
||
|
* the form itself.
|
||
|
*/
|
||
|
$.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');
|
||
|
};
|
||
|
|
||
|
/**
|
||
|
* formToArray() gathers form element data into an array of objects that can
|
||
|
* be passed to any of the following ajax functions: $.get, $.post, or load.
|
||
|
* Each object in the array has both a 'name' and 'value' property. An example of
|
||
|
* an array for a simple login form might be:
|
||
|
*
|
||
|
* [ { name: 'username', value: 'jresig' }, { name: 'password', value: 'secret' } ]
|
||
|
*
|
||
|
* It is this array that is passed to pre-submit callback functions provided to the
|
||
|
* ajaxSubmit() and ajaxForm() methods.
|
||
|
*/
|
||
|
$.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;
|
||
|
};
|
||
|
|
||
|
/**
|
||
|
* Serializes form data into a 'submittable' string. This method will return a string
|
||
|
* in the format: name1=value1&name2=value2
|
||
|
*/
|
||
|
$.fn.formSerialize = function(semantic) {
|
||
|
//hand off to jQuery.param for proper encoding
|
||
|
return $.param(this.formToArray(semantic));
|
||
|
};
|
||
|
|
||
|
/**
|
||
|
* Serializes all field elements in the jQuery object into a query string.
|
||
|
* This method will return a string in the format: name1=value1&name2=value2
|
||
|
*/
|
||
|
$.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);
|
||
|
};
|
||
|
|
||
|
/**
|
||
|
* Returns the value(s) of the element in the matched set. For example, consider the following form:
|
||
|
*
|
||
|
* <form><fieldset>
|
||
|
* <input name="A" type="text" />
|
||
|
* <input name="A" type="text" />
|
||
|
* <input name="B" type="checkbox" value="B1" />
|
||
|
* <input name="B" type="checkbox" value="B2"/>
|
||
|
* <input name="C" type="radio" value="C1" />
|
||
|
* <input name="C" type="radio" value="C2" />
|
||
|
* </fieldset></form>
|
||
|
*
|
||
|
* var v = $(':text').fieldValue();
|
||
|
* // if no values are entered into the text inputs
|
||
|
* v == ['','']
|
||
|
* // if values entered into the text inputs are 'foo' and 'bar'
|
||
|
* v == ['foo','bar']
|
||
|
*
|
||
|
* var v = $(':checkbox').fieldValue();
|
||
|
* // if neither checkbox is checked
|
||
|
* v === undefined
|
||
|
* // if both checkboxes are checked
|
||
|
* v == ['B1', 'B2']
|
||
|
*
|
||
|
* var v = $(':radio').fieldValue();
|
||
|
* // if neither radio is checked
|
||
|
* v === undefined
|
||
|
* // if first radio is checked
|
||
|
* v == ['C1']
|
||
|
*
|
||
|
* The successful argument controls whether or not the field element must be 'successful'
|
||
|
* (per http://www.w3.org/TR/html4/interact/forms.html#successful-controls).
|
||
|
* The default value of the successful argument is true. If this value is false the value(s)
|
||
|
* for each element is returned.
|
||
|
*
|
||
|
* Note: This method *always* returns an array. If no valid value can be determined the
|
||
|
* array will be empty, otherwise it will contain one or more values.
|
||
|
*/
|
||
|
$.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;
|
||
|
};
|
||
|
|
||
|
/**
|
||
|
* Returns the value of the field element.
|
||
|
*/
|
||
|
$.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;
|
||
|
};
|
||
|
|
||
|
/**
|
||
|
* Clears the form data. Takes the following actions on the form's input fields:
|
||
|
* - input text fields will have their 'value' property set to the empty string
|
||
|
* - select elements will have their 'selectedIndex' property set to -1
|
||
|
* - checkbox and radio inputs will have their 'checked' property set to false
|
||
|
* - inputs of type submit, button, reset, and hidden will *not* be effected
|
||
|
* - button elements will *not* be effected
|
||
|
*/
|
||
|
$.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);
|