899 lines
26 KiB
JavaScript
899 lines
26 KiB
JavaScript
/*!
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* jQuery Form Plugin
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* version: 2.81 (04-JUN-2011)
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* @requires jQuery v1.3.2 or later
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*
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* Examples and documentation at: http://malsup.com/jquery/form/
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* Dual licensed under the MIT and GPL licenses:
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* http://www.opensource.org/licenses/mit-license.php
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* http://www.gnu.org/licenses/gpl.html
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*/
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;(function($) {
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/*
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Usage Note:
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-----------
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Do not use both ajaxSubmit and ajaxForm on the same form. These
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functions are intended to be exclusive. Use ajaxSubmit if you want
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to bind your own submit handler to the form. For example,
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$(document).ready(function() {
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$('#myForm').bind('submit', function(e) {
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e.preventDefault(); // <-- important
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$(this).ajaxSubmit({
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target: '#output'
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});
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});
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});
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Use ajaxForm when you want the plugin to manage all the event binding
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for you. For example,
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$(document).ready(function() {
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$('#myForm').ajaxForm({
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target: '#output'
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});
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});
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When using ajaxForm, the ajaxSubmit function will be invoked for you
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at the appropriate time.
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*/
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/**
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* ajaxSubmit() provides a mechanism for immediately submitting
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* an HTML form using AJAX.
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*/
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$.fn.ajaxSubmit = function(options) {
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// fast fail if nothing selected (http://dev.jquery.com/ticket/2752)
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if (!this.length) {
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log('ajaxSubmit: skipping submit process - no element selected');
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return this;
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}
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if (typeof options == 'function') {
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options = { success: options };
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}
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var action = this.attr('action');
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var url = (typeof action === 'string') ? $.trim(action) : '';
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url = url || window.location.href || '';
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if (url) {
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// clean url (don't include hash vaue)
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url = (url.match(/^([^#]+)/)||[])[1];
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}
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options = $.extend(true, {
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url: url,
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success: $.ajaxSettings.success,
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type: this[0].getAttribute('method') || 'GET', // IE7 massage (see issue 57)
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iframeSrc: /^https/i.test(window.location.href || '') ? 'javascript:false' : 'about:blank'
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}, options);
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// hook for manipulating the form data before it is extracted;
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// convenient for use with rich editors like tinyMCE or FCKEditor
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var veto = {};
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this.trigger('form-pre-serialize', [this, options, veto]);
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if (veto.veto) {
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log('ajaxSubmit: submit vetoed via form-pre-serialize trigger');
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return this;
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}
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// provide opportunity to alter form data before it is serialized
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if (options.beforeSerialize && options.beforeSerialize(this, options) === false) {
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log('ajaxSubmit: submit aborted via beforeSerialize callback');
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return this;
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}
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var n,v,a = this.formToArray(options.semantic);
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if (options.data) {
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options.extraData = options.data;
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for (n in options.data) {
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if(options.data[n] instanceof Array) {
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for (var k in options.data[n]) {
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a.push( { name: n, value: options.data[n][k] } );
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}
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}
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else {
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v = options.data[n];
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v = $.isFunction(v) ? v() : v; // if value is fn, invoke it
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a.push( { name: n, value: v } );
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}
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}
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}
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// give pre-submit callback an opportunity to abort the submit
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if (options.beforeSubmit && options.beforeSubmit(a, this, options) === false) {
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log('ajaxSubmit: submit aborted via beforeSubmit callback');
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return this;
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}
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// fire vetoable 'validate' event
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this.trigger('form-submit-validate', [a, this, options, veto]);
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if (veto.veto) {
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log('ajaxSubmit: submit vetoed via form-submit-validate trigger');
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return this;
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}
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var q = $.param(a);
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if (options.type.toUpperCase() == 'GET') {
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options.url += (options.url.indexOf('?') >= 0 ? '&' : '?') + q;
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options.data = null; // data is null for 'get'
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}
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else {
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options.data = q; // data is the query string for 'post'
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}
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var $form = this, callbacks = [];
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if (options.resetForm) {
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callbacks.push(function() { $form.resetForm(); });
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}
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if (options.clearForm) {
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callbacks.push(function() { $form.clearForm(); });
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}
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// perform a load on the target only if dataType is not provided
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if (!options.dataType && options.target) {
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var oldSuccess = options.success || function(){};
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callbacks.push(function(data) {
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var fn = options.replaceTarget ? 'replaceWith' : 'html';
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$(options.target)[fn](data).each(oldSuccess, arguments);
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});
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}
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else if (options.success) {
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callbacks.push(options.success);
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}
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options.success = function(data, status, xhr) { // jQuery 1.4+ passes xhr as 3rd arg
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var context = options.context || options; // jQuery 1.4+ supports scope context
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for (var i=0, max=callbacks.length; i < max; i++) {
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callbacks[i].apply(context, [data, status, xhr || $form, $form]);
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}
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};
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// are there files to upload?
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var fileInputs = $('input:file', this).length > 0;
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var mp = 'multipart/form-data';
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var multipart = ($form.attr('enctype') == mp || $form.attr('encoding') == mp);
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// options.iframe allows user to force iframe mode
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// 06-NOV-09: now defaulting to iframe mode if file input is detected
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if (options.iframe !== false && (fileInputs || options.iframe || multipart)) {
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// hack to fix Safari hang (thanks to Tim Molendijk for this)
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// see: http://groups.google.com/group/jquery-dev/browse_thread/thread/36395b7ab510dd5d
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if (options.closeKeepAlive) {
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$.get(options.closeKeepAlive, function() { fileUpload(a); });
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}
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else {
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fileUpload(a);
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}
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}
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else {
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$.ajax(options);
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}
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// fire 'notify' event
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this.trigger('form-submit-notify', [this, options]);
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return this;
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// private function for handling file uploads (hat tip to YAHOO!)
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function fileUpload(a) {
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var form = $form[0], i, s, g, id, $io, io, xhr, sub, n, timedOut, timeoutHandle;
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if (a) {
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// ensure that every serialized input is still enabled
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for (i=0; i < a.length; i++) {
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$(form[a[i].name]).attr('disabled', false);
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}
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}
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if ($(':input[name=submit],:input[id=submit]', form).length) {
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// if there is an input with a name or id of 'submit' then we won't be
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// able to invoke the submit fn on the form (at least not x-browser)
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alert('Error: Form elements must not have name or id of "submit".');
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return;
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}
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s = $.extend(true, {}, $.ajaxSettings, options);
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s.context = s.context || s;
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id = 'jqFormIO' + (new Date().getTime());
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if (s.iframeTarget) {
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$io = $(s.iframeTarget);
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n = $io.attr('name');
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if (n == null)
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$io.attr('name', id);
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else
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id = n;
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}
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else {
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$io = $('<iframe name="' + id + '" src="'+ s.iframeSrc +'" />');
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$io.css({ position: 'absolute', top: '-1000px', left: '-1000px' });
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}
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io = $io[0];
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xhr = { // mock object
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aborted: 0,
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responseText: null,
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responseXML: null,
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status: 0,
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statusText: 'n/a',
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getAllResponseHeaders: function() {},
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getResponseHeader: function() {},
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setRequestHeader: function() {},
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abort: function(status) {
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var e = (status === 'timeout' ? 'timeout' : 'aborted');
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log('aborting upload... ' + e);
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this.aborted = 1;
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$io.attr('src', s.iframeSrc); // abort op in progress
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xhr.error = e;
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s.error && s.error.call(s.context, xhr, e, status);
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g && $.event.trigger("ajaxError", [xhr, s, e]);
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s.complete && s.complete.call(s.context, xhr, e);
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}
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};
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g = s.global;
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// trigger ajax global events so that activity/block indicators work like normal
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if (g && ! $.active++) {
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$.event.trigger("ajaxStart");
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}
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if (g) {
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$.event.trigger("ajaxSend", [xhr, s]);
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}
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if (s.beforeSend && s.beforeSend.call(s.context, xhr, s) === false) {
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if (s.global) {
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$.active--;
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}
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return;
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}
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if (xhr.aborted) {
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return;
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}
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// add submitting element to data if we know it
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sub = form.clk;
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if (sub) {
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n = sub.name;
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if (n && !sub.disabled) {
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s.extraData = s.extraData || {};
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s.extraData[n] = sub.value;
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if (sub.type == "image") {
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s.extraData[n+'.x'] = form.clk_x;
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s.extraData[n+'.y'] = form.clk_y;
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}
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}
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}
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var CLIENT_TIMEOUT_ABORT = 1;
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var SERVER_ABORT = 2;
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function getDoc(frame) {
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var doc = frame.contentWindow ? frame.contentWindow.document : frame.contentDocument ? frame.contentDocument : frame.document;
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return doc;
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}
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// take a breath so that pending repaints get some cpu time before the upload starts
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function doSubmit() {
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// make sure form attrs are set
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var t = $form.attr('target'), a = $form.attr('action');
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// update form attrs in IE friendly way
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form.setAttribute('target',id);
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if (form.getAttribute('method') != 'POST') {
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form.setAttribute('method', 'POST');
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}
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if (form.getAttribute('action') != s.url) {
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form.setAttribute('action', s.url);
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}
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// ie borks in some cases when setting encoding
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if (! s.skipEncodingOverride) {
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$form.attr({
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encoding: 'multipart/form-data',
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enctype: 'multipart/form-data'
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});
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}
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// support timout
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if (s.timeout) {
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timeoutHandle = setTimeout(function() { timedOut = true; cb(CLIENT_TIMEOUT_ABORT); }, s.timeout);
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}
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// look for server aborts
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function checkState() {
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try {
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var state = getDoc(io).readyState;
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log('state = ' + state);
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if (state.toLowerCase() == 'uninitialized')
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setTimeout(checkState,50);
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}
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catch(e) {
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log('Server abort: ' , e, ' (', e.name, ')');
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cb(SERVER_ABORT);
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timeoutHandle && clearTimeout(timeoutHandle);
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timeoutHandle = undefined;
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}
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}
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// add "extra" data to form if provided in options
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var extraInputs = [];
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try {
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if (s.extraData) {
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for (var n in s.extraData) {
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extraInputs.push(
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$('<input type="hidden" name="'+n+'" />').attr('value',s.extraData[n])
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.appendTo(form)[0]);
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}
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}
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if (!s.iframeTarget) {
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// add iframe to doc and submit the form
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$io.appendTo('body');
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io.attachEvent ? io.attachEvent('onload', cb) : io.addEventListener('load', cb, false);
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}
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setTimeout(checkState,15);
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form.submit();
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}
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finally {
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// reset attrs and remove "extra" input elements
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form.setAttribute('action',a);
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if(t) {
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form.setAttribute('target', t);
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} else {
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$form.removeAttr('target');
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}
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$(extraInputs).remove();
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}
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}
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if (s.forceSync) {
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doSubmit();
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}
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else {
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setTimeout(doSubmit, 10); // this lets dom updates render
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}
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var data, doc, domCheckCount = 50, callbackProcessed;
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function cb(e) {
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if (xhr.aborted || callbackProcessed) {
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return;
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}
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try {
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doc = getDoc(io);
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}
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catch(ex) {
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log('cannot access response document: ', ex);
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e = SERVER_ABORT;
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}
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if (e === CLIENT_TIMEOUT_ABORT && xhr) {
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xhr.abort('timeout');
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return;
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}
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else if (e == SERVER_ABORT && xhr) {
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xhr.abort('server abort');
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return;
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}
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if (!doc || doc.location.href == s.iframeSrc) {
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// response not received yet
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if (!timedOut)
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return;
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}
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io.detachEvent ? io.detachEvent('onload', cb) : io.removeEventListener('load', cb, false);
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var status = 'success', errMsg;
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try {
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if (timedOut) {
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throw 'timeout';
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}
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var isXml = s.dataType == 'xml' || doc.XMLDocument || $.isXMLDoc(doc);
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log('isXml='+isXml);
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if (!isXml && window.opera && (doc.body == null || doc.body.innerHTML == '')) {
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if (--domCheckCount) {
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// in some browsers (Opera) the iframe DOM is not always traversable when
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// the onload callback fires, so we loop a bit to accommodate
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log('requeing onLoad callback, DOM not available');
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setTimeout(cb, 250);
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return;
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}
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// let this fall through because server response could be an empty document
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//log('Could not access iframe DOM after mutiple tries.');
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//throw 'DOMException: not available';
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}
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//log('response detected');
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var docRoot = doc.body ? doc.body : doc.documentElement;
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xhr.responseText = docRoot ? docRoot.innerHTML : null;
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xhr.responseXML = doc.XMLDocument ? doc.XMLDocument : doc;
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if (isXml)
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s.dataType = 'xml';
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xhr.getResponseHeader = function(header){
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var headers = {'content-type': s.dataType};
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return headers[header];
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};
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// support for XHR 'status' & 'statusText' emulation :
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if (docRoot) {
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xhr.status = Number( docRoot.getAttribute('status') ) || xhr.status;
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xhr.statusText = docRoot.getAttribute('statusText') || xhr.statusText;
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}
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var dt = s.dataType || '';
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var scr = /(json|script|text)/.test(dt.toLowerCase());
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if (scr || s.textarea) {
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// see if user embedded response in textarea
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var ta = doc.getElementsByTagName('textarea')[0];
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if (ta) {
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xhr.responseText = ta.value;
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// support for XHR 'status' & 'statusText' emulation :
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xhr.status = Number( ta.getAttribute('status') ) || xhr.status;
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xhr.statusText = ta.getAttribute('statusText') || xhr.statusText;
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}
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else if (scr) {
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// account for browsers injecting pre around json response
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var pre = doc.getElementsByTagName('pre')[0];
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var b = doc.getElementsByTagName('body')[0];
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if (pre) {
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xhr.responseText = pre.textContent ? pre.textContent : pre.innerHTML;
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}
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else if (b) {
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xhr.responseText = b.innerHTML;
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}
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}
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}
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else if (s.dataType == 'xml' && !xhr.responseXML && xhr.responseText != null) {
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xhr.responseXML = toXml(xhr.responseText);
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}
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try {
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data = httpData(xhr, s.dataType, s);
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}
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catch (e) {
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status = 'parsererror';
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xhr.error = errMsg = (e || status);
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}
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}
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catch (e) {
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log('error caught: ',e);
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status = 'error';
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xhr.error = errMsg = (e || status);
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}
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if (xhr.aborted) {
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log('upload aborted');
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status = null;
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}
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if (xhr.status) { // we've set xhr.status
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status = (xhr.status >= 200 && xhr.status < 300 || xhr.status === 304) ? 'success' : 'error';
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}
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|
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// ordering of these callbacks/triggers is odd, but that's how $.ajax does it
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|
if (status === 'success') {
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s.success && s.success.call(s.context, data, 'success', xhr);
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g && $.event.trigger("ajaxSuccess", [xhr, s]);
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}
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else if (status) {
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if (errMsg == undefined)
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errMsg = xhr.statusText;
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s.error && s.error.call(s.context, xhr, status, errMsg);
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g && $.event.trigger("ajaxError", [xhr, s, errMsg]);
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}
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g && $.event.trigger("ajaxComplete", [xhr, s]);
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|
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if (g && ! --$.active) {
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$.event.trigger("ajaxStop");
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}
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|
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s.complete && s.complete.call(s.context, xhr, status);
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|
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callbackProcessed = true;
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if (s.timeout)
|
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clearTimeout(timeoutHandle);
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|
|
// clean up
|
|
setTimeout(function() {
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if (!s.iframeTarget)
|
|
$io.remove();
|
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xhr.responseXML = null;
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}, 100);
|
|
}
|
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|
|
var toXml = $.parseXML || function(s, doc) { // use parseXML if available (jQuery 1.5+)
|
|
if (window.ActiveXObject) {
|
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doc = new ActiveXObject('Microsoft.XMLDOM');
|
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doc.async = 'false';
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doc.loadXML(s);
|
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}
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else {
|
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doc = (new DOMParser()).parseFromString(s, 'text/xml');
|
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}
|
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return (doc && doc.documentElement && doc.documentElement.nodeName != 'parsererror') ? doc : null;
|
|
};
|
|
var parseJSON = $.parseJSON || function(s) {
|
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return window['eval']('(' + s + ')');
|
|
};
|
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|
|
var httpData = function( xhr, type, s ) { // mostly lifted from jq1.4.4
|
|
|
|
var ct = xhr.getResponseHeader('content-type') || '',
|
|
xml = type === 'xml' || !type && ct.indexOf('xml') >= 0,
|
|
data = xml ? xhr.responseXML : xhr.responseText;
|
|
|
|
if (xml && data.documentElement.nodeName === 'parsererror') {
|
|
$.error && $.error('parsererror');
|
|
}
|
|
if (s && s.dataFilter) {
|
|
data = s.dataFilter(data, type);
|
|
}
|
|
if (typeof data === 'string') {
|
|
if (type === 'json' || !type && ct.indexOf('json') >= 0) {
|
|
data = parseJSON(data);
|
|
} else if (type === "script" || !type && ct.indexOf("javascript") >= 0) {
|
|
$.globalEval(data);
|
|
}
|
|
}
|
|
return data;
|
|
};
|
|
}
|
|
};
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
$.fn.ajaxForm = function(options) {
|
|
// in jQuery 1.3+ we can fix mistakes with the ready state
|
|
if (this.length === 0) {
|
|
var o = { s: this.selector, c: this.context };
|
|
if (!$.isReady && o.s) {
|
|
log('DOM not ready, queuing ajaxForm');
|
|
$(function() {
|
|
$(o.s,o.c).ajaxForm(options);
|
|
});
|
|
return this;
|
|
}
|
|
// is your DOM ready? http://docs.jquery.com/Tutorials:Introducing_$(document).ready()
|
|
log('terminating; zero elements found by selector' + ($.isReady ? '' : ' (DOM not ready)'));
|
|
return this;
|
|
}
|
|
|
|
return this.ajaxFormUnbind().bind('submit.form-plugin', function(e) {
|
|
if (!e.isDefaultPrevented()) { // if event has been canceled, don't proceed
|
|
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;
|
|
}
|
|
|
|
var i,j,n,v,el,max,jmax;
|
|
for(i=0, max=els.length; i < max; i++) {
|
|
el = els[i];
|
|
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;
|
|
}
|
|
|
|
v = $.fieldValue(el, true);
|
|
if (v && v.constructor == Array) {
|
|
for(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 (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).val();
|
|
};
|
|
|
|
/**
|
|
* 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
|
|
function log() {
|
|
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);
|