873 lines
32 KiB
JavaScript
873 lines
32 KiB
JavaScript
/*
|
|
* jQuery Form Plugin
|
|
* version: 2.02 (12/16/2007)
|
|
* @requires jQuery v1.1 or later
|
|
*
|
|
* Examples 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
|
|
*
|
|
* Revision: $Id$
|
|
*/
|
|
(function($) {
|
|
/**
|
|
* ajaxSubmit() provides a mechanism for submitting an HTML form using AJAX.
|
|
*
|
|
* ajaxSubmit accepts a single argument which can be either a success callback function
|
|
* or an options Object. If a function is provided it will be invoked upon successful
|
|
* completion of the submit and will be passed the response from the server.
|
|
* If an options Object is provided, the following attributes are supported:
|
|
*
|
|
* target: Identifies the element(s) in the page to be updated with the server response.
|
|
* This value may be specified as a jQuery selection string, a jQuery object,
|
|
* or a DOM element.
|
|
* default value: null
|
|
*
|
|
* url: URL to which the form data will be submitted.
|
|
* default value: value of form's 'action' attribute
|
|
*
|
|
* type: The method in which the form data should be submitted, 'GET' or 'POST'.
|
|
* default value: value of form's 'method' attribute (or 'GET' if none found)
|
|
*
|
|
* data: Additional data to add to the request, specified as key/value pairs (see $.ajax).
|
|
*
|
|
* beforeSubmit: Callback method to be invoked before the form is submitted.
|
|
* default value: null
|
|
*
|
|
* success: Callback method to be invoked after the form has been successfully submitted
|
|
* and the response has been returned from the server
|
|
* default value: null
|
|
*
|
|
* dataType: Expected dataType of the response. One of: null, 'xml', 'script', or 'json'
|
|
* default value: null
|
|
*
|
|
* semantic: Boolean flag indicating whether data must be submitted in semantic order (slower).
|
|
* default value: false
|
|
*
|
|
* resetForm: Boolean flag indicating whether the form should be reset if the submit is successful
|
|
*
|
|
* clearForm: Boolean flag indicating whether the form should be cleared if the submit is successful
|
|
*
|
|
*
|
|
* The 'beforeSubmit' callback can be provided as a hook for running pre-submit logic or for
|
|
* validating the form data. If the 'beforeSubmit' callback returns false then the form will
|
|
* not be submitted. The 'beforeSubmit' callback is invoked with three arguments: the form data
|
|
* in array format, the jQuery object, and the options object passed into ajaxSubmit.
|
|
* The form data array takes the following form:
|
|
*
|
|
* [ { name: 'username', value: 'jresig' }, { name: 'password', value: 'secret' } ]
|
|
*
|
|
* If a 'success' callback method is provided it is invoked after the response has been returned
|
|
* from the server. It is passed the responseText or responseXML value (depending on dataType).
|
|
* See jQuery.ajax for further details.
|
|
*
|
|
*
|
|
* The dataType option provides a means for specifying how the server response should be handled.
|
|
* This maps directly to the jQuery.httpData method. The following values are supported:
|
|
*
|
|
* 'xml': if dataType == 'xml' the server response is treated as XML and the 'success'
|
|
* callback method, if specified, will be passed the responseXML value
|
|
* 'json': if dataType == 'json' the server response will be evaluted and passed to
|
|
* the 'success' callback, if specified
|
|
* 'script': if dataType == 'script' the server response is evaluated in the global context
|
|
*
|
|
*
|
|
* Note that it does not make sense to use both the 'target' and 'dataType' options. If both
|
|
* are provided the target will be ignored.
|
|
*
|
|
* The semantic argument can be used to force form serialization in semantic order.
|
|
* This is normally true anyway, unless the form contains input elements of type='image'.
|
|
* If your form must be submitted with name/value pairs in semantic order and your form
|
|
* contains an input of type='image" then pass true for this arg, otherwise pass false
|
|
* (or nothing) to avoid the overhead for this logic.
|
|
*
|
|
*
|
|
* When used on its own, ajaxSubmit() is typically bound to a form's submit event like this:
|
|
*
|
|
* $("#form-id").submit(function() {
|
|
* $(this).ajaxSubmit(options);
|
|
* return false; // cancel conventional submit
|
|
* });
|
|
*
|
|
* When using ajaxForm(), however, this is done for you.
|
|
*
|
|
* @example
|
|
* $('#myForm').ajaxSubmit(function(data) {
|
|
* alert('Form submit succeeded! Server returned: ' + data);
|
|
* });
|
|
* @desc Submit form and alert server response
|
|
*
|
|
*
|
|
* @example
|
|
* var options = {
|
|
* target: '#myTargetDiv'
|
|
* };
|
|
* $('#myForm').ajaxSubmit(options);
|
|
* @desc Submit form and update page element with server response
|
|
*
|
|
*
|
|
* @example
|
|
* var options = {
|
|
* success: function(responseText) {
|
|
* alert(responseText);
|
|
* }
|
|
* };
|
|
* $('#myForm').ajaxSubmit(options);
|
|
* @desc Submit form and alert the server response
|
|
*
|
|
*
|
|
* @example
|
|
* var options = {
|
|
* beforeSubmit: function(formArray, jqForm) {
|
|
* if (formArray.length == 0) {
|
|
* alert('Please enter data.');
|
|
* return false;
|
|
* }
|
|
* }
|
|
* };
|
|
* $('#myForm').ajaxSubmit(options);
|
|
* @desc Pre-submit validation which aborts the submit operation if form data is empty
|
|
*
|
|
*
|
|
* @example
|
|
* var options = {
|
|
* url: myJsonUrl.php,
|
|
* dataType: 'json',
|
|
* success: function(data) {
|
|
* // 'data' is an object representing the the evaluated json data
|
|
* }
|
|
* };
|
|
* $('#myForm').ajaxSubmit(options);
|
|
* @desc json data returned and evaluated
|
|
*
|
|
*
|
|
* @example
|
|
* var options = {
|
|
* url: myXmlUrl.php,
|
|
* dataType: 'xml',
|
|
* success: function(responseXML) {
|
|
* // responseXML is XML document object
|
|
* var data = $('myElement', responseXML).text();
|
|
* }
|
|
* };
|
|
* $('#myForm').ajaxSubmit(options);
|
|
* @desc XML data returned from server
|
|
*
|
|
*
|
|
* @example
|
|
* var options = {
|
|
* resetForm: true
|
|
* };
|
|
* $('#myForm').ajaxSubmit(options);
|
|
* @desc submit form and reset it if successful
|
|
*
|
|
* @example
|
|
* $('#myForm).submit(function() {
|
|
* $(this).ajaxSubmit();
|
|
* return false;
|
|
* });
|
|
* @desc Bind form's submit event to use ajaxSubmit
|
|
*
|
|
*
|
|
* @name ajaxSubmit
|
|
* @type jQuery
|
|
* @param options object literal containing options which control the form submission process
|
|
* @cat Plugins/Form
|
|
* @return jQuery
|
|
*/
|
|
$.fn.ajaxSubmit = function(options) {
|
|
if (typeof options == 'function')
|
|
options = { success: options };
|
|
|
|
options = $.extend({
|
|
url: this.attr('action') || window.location.toString(),
|
|
type: this.attr('method') || 'GET'
|
|
}, options || {});
|
|
|
|
// hook for manipulating the form data before it is extracted;
|
|
// convenient for use with rich editors like tinyMCE or FCKEditor
|
|
var veto = {};
|
|
$.event.trigger('form.pre.serialize', [this, options, veto]);
|
|
if (veto.veto) return this;
|
|
|
|
var a = this.formToArray(options.semantic);
|
|
if (options.data) {
|
|
for (var n in options.data)
|
|
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) return this;
|
|
|
|
// fire vetoable 'validate' event
|
|
$.event.trigger('form.submit.validate', [a, this, options, veto]);
|
|
if (veto.veto) return this;
|
|
|
|
var q = $.param(a);//.replace(/%20/g,'+');
|
|
|
|
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) {
|
|
if (this.evalScripts)
|
|
$(options.target).attr("innerHTML", data).evalScripts().each(oldSuccess, arguments);
|
|
else // jQuery v1.1.4
|
|
$(options.target).html(data).each(oldSuccess, arguments);
|
|
});
|
|
}
|
|
else if (options.success)
|
|
callbacks.push(options.success);
|
|
|
|
options.success = function(data, status) {
|
|
for (var i=0, max=callbacks.length; i < max; i++)
|
|
callbacks[i](data, status, $form);
|
|
};
|
|
|
|
// are there files to upload?
|
|
var files = $('input:file', this).fieldValue();
|
|
var found = false;
|
|
for (var j=0; j < files.length; j++)
|
|
if (files[j])
|
|
found = true;
|
|
|
|
// options.iframe allows user to force iframe mode
|
|
if (options.iframe || found) {
|
|
// hack to fix Safari hang (thanks to Tim Molendijk for this)
|
|
// see: http://groups.google.com/group/jquery-dev/browse_thread/thread/36395b7ab510dd5d
|
|
if ($.browser.safari && options.closeKeepAlive)
|
|
$.get(options.closeKeepAlive, fileUpload);
|
|
else
|
|
fileUpload();
|
|
}
|
|
else
|
|
$.ajax(options);
|
|
|
|
// fire 'notify' event
|
|
$.event.trigger('form.submit.notify', [this, options]);
|
|
return this;
|
|
|
|
|
|
// private function for handling file uploads (hat tip to YAHOO!)
|
|
function fileUpload() {
|
|
var form = $form[0];
|
|
var opts = $.extend({}, $.ajaxSettings, options);
|
|
|
|
var id = 'jqFormIO' + $.fn.ajaxSubmit.counter++;
|
|
var $io = $('<iframe id="' + id + '" name="' + id + '" />');
|
|
var io = $io[0];
|
|
var op8 = $.browser.opera && window.opera.version() < 9;
|
|
if ($.browser.msie || op8) io.src = 'javascript:false;document.write("");';
|
|
$io.css({ position: 'absolute', top: '-1000px', left: '-1000px' });
|
|
|
|
var xhr = { // mock object
|
|
responseText: null,
|
|
responseXML: null,
|
|
status: 0,
|
|
statusText: 'n/a',
|
|
getAllResponseHeaders: function() {},
|
|
getResponseHeader: function() {},
|
|
setRequestHeader: function() {}
|
|
};
|
|
|
|
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]);
|
|
|
|
var cbInvoked = 0;
|
|
var timedOut = 0;
|
|
|
|
// take a breath so that pending repaints get some cpu time before the upload starts
|
|
setTimeout(function() {
|
|
// make sure form attrs are set
|
|
var encAttr = form.encoding ? 'encoding' : 'enctype';
|
|
var t = $form.attr('target');
|
|
$form.attr({
|
|
target: id,
|
|
method: 'POST',
|
|
action: opts.url
|
|
});
|
|
form[encAttr] = 'multipart/form-data';
|
|
|
|
// support timout
|
|
if (opts.timeout)
|
|
setTimeout(function() { timedOut = true; cb(); }, opts.timeout);
|
|
|
|
// add iframe to doc and submit the form
|
|
$io.appendTo('body');
|
|
io.attachEvent ? io.attachEvent('onload', cb) : io.addEventListener('load', cb, false);
|
|
form.submit();
|
|
$form.attr('target', t); // reset target
|
|
}, 10);
|
|
|
|
function cb() {
|
|
if (cbInvoked++) return;
|
|
|
|
io.detachEvent ? io.detachEvent('onload', cb) : io.removeEventListener('load', cb, false);
|
|
|
|
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;
|
|
xhr.responseText = doc.body ? doc.body.innerHTML : null;
|
|
xhr.responseXML = doc.XMLDocument ? doc.XMLDocument : doc;
|
|
|
|
if (opts.dataType == 'json' || opts.dataType == 'script') {
|
|
var ta = doc.getElementsByTagName('textarea')[0];
|
|
data = ta ? ta.value : xhr.responseText;
|
|
if (opts.dataType == 'json')
|
|
eval("data = " + data);
|
|
else
|
|
$.globalEval(data);
|
|
}
|
|
else if (opts.dataType == 'xml') {
|
|
data = xhr.responseXML;
|
|
if (!data && xhr.responseText != null)
|
|
data = toXml(xhr.responseText);
|
|
}
|
|
else {
|
|
data = xhr.responseText;
|
|
}
|
|
}
|
|
catch(e){
|
|
ok = false;
|
|
$.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.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.ajaxSubmit.counter = 0; // used to create unique iframe ids
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* Note that for accurate x/y coordinates of image submit elements in all browsers
|
|
* you need to also use the "dimensions" plugin (this method will auto-detect its presence).
|
|
*
|
|
* 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. See ajaxSubmit for a full description of the options argument.
|
|
*
|
|
*
|
|
* @example
|
|
* var options = {
|
|
* target: '#myTargetDiv'
|
|
* };
|
|
* $('#myForm').ajaxSForm(options);
|
|
* @desc Bind form's submit event so that 'myTargetDiv' is updated with the server response
|
|
* when the form is submitted.
|
|
*
|
|
*
|
|
* @example
|
|
* var options = {
|
|
* success: function(responseText) {
|
|
* alert(responseText);
|
|
* }
|
|
* };
|
|
* $('#myForm').ajaxSubmit(options);
|
|
* @desc Bind form's submit event so that server response is alerted after the form is submitted.
|
|
*
|
|
*
|
|
* @example
|
|
* var options = {
|
|
* beforeSubmit: function(formArray, jqForm) {
|
|
* if (formArray.length == 0) {
|
|
* alert('Please enter data.');
|
|
* return false;
|
|
* }
|
|
* }
|
|
* };
|
|
* $('#myForm').ajaxSubmit(options);
|
|
* @desc Bind form's submit event so that pre-submit callback is invoked before the form
|
|
* is submitted.
|
|
*
|
|
*
|
|
* @name ajaxForm
|
|
* @param options object literal containing options which control the form submission process
|
|
* @return jQuery
|
|
* @cat Plugins/Form
|
|
* @type jQuery
|
|
*/
|
|
$.fn.ajaxForm = function(options) {
|
|
return this.ajaxFormUnbind().submit(submitHandler).each(function() {
|
|
// store options in hash
|
|
this.formPluginId = $.fn.ajaxForm.counter++;
|
|
$.fn.ajaxForm.optionHash[this.formPluginId] = options;
|
|
$(":submit,input:image", this).click(clickHandler);
|
|
});
|
|
};
|
|
|
|
$.fn.ajaxForm.counter = 1;
|
|
$.fn.ajaxForm.optionHash = {};
|
|
|
|
function clickHandler(e) {
|
|
var $form = this.form;
|
|
$form.clk = this;
|
|
if (this.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 = $(this).offset();
|
|
$form.clk_x = e.pageX - offset.left;
|
|
$form.clk_y = e.pageY - offset.top;
|
|
} else {
|
|
$form.clk_x = e.pageX - this.offsetLeft;
|
|
$form.clk_y = e.pageY - this.offsetTop;
|
|
}
|
|
}
|
|
// clear form vars
|
|
setTimeout(function() { $form.clk = $form.clk_x = $form.clk_y = null; }, 10);
|
|
};
|
|
|
|
function submitHandler() {
|
|
// retrieve options from hash
|
|
var id = this.formPluginId;
|
|
var options = $.fn.ajaxForm.optionHash[id];
|
|
$(this).ajaxSubmit(options);
|
|
return false;
|
|
};
|
|
|
|
/**
|
|
* ajaxFormUnbind unbinds the event handlers that were bound by ajaxForm
|
|
*
|
|
* @name ajaxFormUnbind
|
|
* @return jQuery
|
|
* @cat Plugins/Form
|
|
* @type jQuery
|
|
*/
|
|
$.fn.ajaxFormUnbind = function() {
|
|
this.unbind('submit', submitHandler);
|
|
return this.each(function() {
|
|
$(":submit,input:image", this).unbind('click', clickHandler);
|
|
});
|
|
|
|
};
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* The semantic argument can be used to force form serialization in semantic order.
|
|
* This is normally true anyway, unless the form contains input elements of type='image'.
|
|
* If your form must be submitted with name/value pairs in semantic order and your form
|
|
* contains an input of type='image" then pass true for this arg, otherwise pass false
|
|
* (or nothing) to avoid the overhead for this logic.
|
|
*
|
|
* @example var data = $("#myForm").formToArray();
|
|
* $.post( "myscript.cgi", data );
|
|
* @desc Collect all the data from a form and submit it to the server.
|
|
*
|
|
* @name formToArray
|
|
* @param semantic true if serialization must maintain strict semantic ordering of elements (slower)
|
|
* @type Array<Object>
|
|
* @cat Plugins/Form
|
|
*/
|
|
$.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+'.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 them here
|
|
var inputs = form.getElementsByTagName("input");
|
|
for(var i=0, max=inputs.length; i < max; i++) {
|
|
var input = inputs[i];
|
|
var n = input.name;
|
|
if(n && !input.disabled && input.type == "image" && form.clk == input)
|
|
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
|
|
*
|
|
* The semantic argument can be used to force form serialization in semantic order.
|
|
* If your form must be submitted with name/value pairs in semantic order then pass
|
|
* true for this arg, otherwise pass false (or nothing) to avoid the overhead for
|
|
* this logic (which can be significant for very large forms).
|
|
*
|
|
* @example var data = $("#myForm").formSerialize();
|
|
* $.ajax('POST', "myscript.cgi", data);
|
|
* @desc Collect all the data from a form into a single string
|
|
*
|
|
* @name formSerialize
|
|
* @param semantic true if serialization must maintain strict semantic ordering of elements (slower)
|
|
* @type String
|
|
* @cat Plugins/Form
|
|
*/
|
|
$.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
|
|
*
|
|
* The successful argument controls whether or not serialization is limited to
|
|
* 'successful' controls (per http://www.w3.org/TR/html4/interact/forms.html#successful-controls).
|
|
* The default value of the successful argument is true.
|
|
*
|
|
* @example var data = $("input").formSerialize();
|
|
* @desc Collect the data from all successful input elements into a query string
|
|
*
|
|
* @example var data = $(":radio").formSerialize();
|
|
* @desc Collect the data from all successful radio input elements into a query string
|
|
*
|
|
* @example var data = $("#myForm :checkbox").formSerialize();
|
|
* @desc Collect the data from all successful checkbox input elements in myForm into a query string
|
|
*
|
|
* @example var data = $("#myForm :checkbox").formSerialize(false);
|
|
* @desc Collect the data from all checkbox elements in myForm (even the unchecked ones) into a query string
|
|
*
|
|
* @example var data = $(":input").formSerialize();
|
|
* @desc Collect the data from all successful input, select, textarea and button elements into a query string
|
|
*
|
|
* @name fieldSerialize
|
|
* @param successful true if only successful controls should be serialized (default is true)
|
|
* @type String
|
|
* @cat Plugins/Form
|
|
*/
|
|
$.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.
|
|
*
|
|
* @example var data = $("#myPasswordElement").fieldValue();
|
|
* alert(data[0]);
|
|
* @desc Alerts the current value of the myPasswordElement element
|
|
*
|
|
* @example var data = $("#myForm :input").fieldValue();
|
|
* @desc Get the value(s) of the form elements in myForm
|
|
*
|
|
* @example var data = $("#myForm :checkbox").fieldValue();
|
|
* @desc Get the value(s) for the successful checkbox element(s) in the jQuery object.
|
|
*
|
|
* @example var data = $("#mySingleSelect").fieldValue();
|
|
* @desc Get the value(s) of the select control
|
|
*
|
|
* @example var data = $(':text').fieldValue();
|
|
* @desc Get the value(s) of the text input or textarea elements
|
|
*
|
|
* @example var data = $("#myMultiSelect").fieldValue();
|
|
* @desc Get the values for the select-multiple control
|
|
*
|
|
* @name fieldValue
|
|
* @param Boolean successful true if only the values for successful controls should be returned (default is true)
|
|
* @type Array<String>
|
|
* @cat Plugins/Form
|
|
*/
|
|
$.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 ? $.merge(val, v) : val.push(v);
|
|
}
|
|
return val;
|
|
};
|
|
|
|
/**
|
|
* Returns the value of the field element.
|
|
*
|
|
* The successful argument controls whether or not the field element must be 'successful'
|
|
* (per http://www.w3.org/TR/html4/interact/forms.html#successful-controls).
|
|
* The default value of the successful argument is true. If the given element is not
|
|
* successful and the successful arg is not false then the returned value will be null.
|
|
*
|
|
* Note: If the successful flag is true (default) but the element is not successful, the return will be null
|
|
* Note: The value returned for a successful select-multiple element will always be an array.
|
|
* Note: If the element has no value the return value will be undefined.
|
|
*
|
|
* @example var data = jQuery.fieldValue($("#myPasswordElement")[0]);
|
|
* @desc Gets the current value of the myPasswordElement element
|
|
*
|
|
* @name fieldValue
|
|
* @param Element el The DOM element for which the value will be returned
|
|
* @param Boolean successful true if value returned must be for a successful controls (default is true)
|
|
* @type String or Array<String> or null or undefined
|
|
* @cat Plugins/Form
|
|
*/
|
|
$.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) {
|
|
// extra pain for IE...
|
|
var v = $.browser.msie && !(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
|
|
*
|
|
* @example $('form').clearForm();
|
|
* @desc Clears all forms on the page.
|
|
*
|
|
* @name clearForm
|
|
* @type jQuery
|
|
* @cat Plugins/Form
|
|
*/
|
|
$.fn.clearForm = function() {
|
|
return this.each(function() {
|
|
$('input,select,textarea', this).clearFields();
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Clears the selected form elements. Takes the following actions on the matched elements:
|
|
* - 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
|
|
*
|
|
* @example $('.myInputs').clearFields();
|
|
* @desc Clears all inputs with class myInputs
|
|
*
|
|
* @name clearFields
|
|
* @type jQuery
|
|
* @cat Plugins/Form
|
|
*/
|
|
$.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.
|
|
*
|
|
* @example $('form').resetForm();
|
|
* @desc Resets all forms on the page.
|
|
*
|
|
* @name resetForm
|
|
* @type jQuery
|
|
* @cat Plugins/Form
|
|
*/
|
|
$.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.
|
|
*
|
|
* @example $(':radio').enabled(false);
|
|
* @desc Disables all radio buttons
|
|
*
|
|
* @name select
|
|
* @type jQuery
|
|
* @cat Plugins/Form
|
|
*/
|
|
$.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.
|
|
*
|
|
* @example $(':checkbox').selected();
|
|
* @desc Checks all checkboxes
|
|
*
|
|
* @name select
|
|
* @type jQuery
|
|
* @cat Plugins/Form
|
|
*/
|
|
$.fn.select = 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').select(false);
|
|
}
|
|
this.selected = select;
|
|
}
|
|
});
|
|
};
|
|
|
|
})(jQuery);
|