103 lines
3.3 KiB
JavaScript
103 lines
3.3 KiB
JavaScript
(function($){
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// Copyright (c) 2009, SilverStripe Ltd.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of the <organization> nor the
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// names of its contributors may be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY SilverStripe Ltd. ''AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL SilverStripe Ltd. BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/**
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* @class Tracks onchange events on all form fields.
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*
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* @todo Implement form reset handling
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*
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* @name jQuery.changetracker
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* @author Ingo Schommer, SilverStripe Ltd.
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* @license BSD License
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*/
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$.fn.changetracker = function(_options) {
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var self = this;
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if(this.length > 1){
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this.each(function(i, item) {
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this.changetracker(_options);
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});
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return this;
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}
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this.defaults = {
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fieldSelector: ':input:not(:submit)',
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ignoreFieldSelector: "",
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changedCssClass: 'changed'
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};
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var options = $.extend({}, this.defaults, _options);
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this.initialize = function() {
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// optional metadata plugin support
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if ($.meta) options = $.extend({}, options, this.data());
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// setup original values
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this.getFields()
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.bind('change', function(e) {
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var $field = $(e.target);
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var origVal = $field.data('changetracker.origVal');
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if(origVal === null || $field.val() != origVal) {
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$field.addClass(options.changedCssClass);
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self.addClass(options.changedCssClass);
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}
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})
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.each(function() {
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$(this).data('changetracker.origVal', $(this).val());
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});
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};
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/**
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* Reset change state of all form fields and the form itself.
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*/
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this.reset = function() {
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this.getFields().each(function() {
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self.resetField(this);
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});
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this.removeClass(options.changedCssClass);
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};
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/**
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* Reset the change single form field.
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* Does not reset to the original value.
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*
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* @param DOMElement field
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*/
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this.resetField = function(field) {
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return $(field).removeData('changetracker.origVal');
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};
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/**
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* @return jQuery Collection of fields
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*/
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this.getFields = function() {
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return this.find(options.fieldSelector).not(options.ignoreFieldSelector);
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};
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return this.initialize();
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};
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}(jQuery)); |