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Diffstat (limited to 'library/jquery.AreYouSure/jquery.are-you-sure.js')
-rw-r--r-- | library/jquery.AreYouSure/jquery.are-you-sure.js | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/library/jquery.AreYouSure/jquery.are-you-sure.js b/library/jquery.AreYouSure/jquery.are-you-sure.js new file mode 100644 index 000000000..3c41e2fcc --- /dev/null +++ b/library/jquery.AreYouSure/jquery.are-you-sure.js @@ -0,0 +1,192 @@ +/*! + * jQuery Plugin: Are-You-Sure (Dirty Form Detection) + * https://github.com/codedance/jquery.AreYouSure/ + * + * Copyright (c) 2012-2014, Chris Dance and PaperCut Software http://www.papercut.com/ + * Dual licensed under the MIT or GPL Version 2 licenses. + * http://jquery.org/license + * + * Author: chris.dance@papercut.com + * Version: 1.9.0 + * Date: 13th August 2014 + */ +(function($) { + + $.fn.areYouSure = function(options) { + + var settings = $.extend( + { + 'message' : 'You have unsaved changes!', + 'dirtyClass' : 'dirty', + 'change' : null, + 'silent' : false, + 'addRemoveFieldsMarksDirty' : false, + 'fieldEvents' : 'change keyup propertychange input', + 'fieldSelector': ":input:not(input[type=submit]):not(input[type=button])" + }, options); + + var getValue = function($field) { + if ($field.hasClass('ays-ignore') + || $field.hasClass('aysIgnore') + || $field.attr('data-ays-ignore') + || $field.attr('name') === undefined) { + return null; + } + + if ($field.is(':disabled')) { + return 'ays-disabled'; + } + + var val; + var type = $field.attr('type'); + if ($field.is('select')) { + type = 'select'; + } + + switch (type) { + case 'checkbox': + case 'radio': + val = $field.is(':checked'); + break; + case 'select': + val = ''; + $field.find('option').each(function(o) { + var $option = $(this); + if ($option.is(':selected')) { + val += $option.val(); + } + }); + break; + default: + val = $field.val(); + } + + return val; + }; + + var storeOrigValue = function($field) { + $field.data('ays-orig', getValue($field)); + }; + + var checkForm = function(evt) { + + var isFieldDirty = function($field) { + var origValue = $field.data('ays-orig'); + if (undefined === origValue) { + return false; + } + return (getValue($field) != origValue); + }; + + var $form = ($(this).is('form')) + ? $(this) + : $(this).parents('form'); + + // Test on the target first as it's the most likely to be dirty + if (isFieldDirty($(evt.target))) { + setDirtyStatus($form, true); + return; + } + + $fields = $form.find(settings.fieldSelector); + + if (settings.addRemoveFieldsMarksDirty) { + // Check if field count has changed + var origCount = $form.data("ays-orig-field-count"); + if (origCount != $fields.length) { + setDirtyStatus($form, true); + return; + } + } + + // Brute force - check each field + var isDirty = false; + $fields.each(function() { + $field = $(this); + if (isFieldDirty($field)) { + isDirty = true; + return false; // break + } + }); + + setDirtyStatus($form, isDirty); + }; + + var initForm = function($form) { + var fields = $form.find(settings.fieldSelector); + $(fields).each(function() { storeOrigValue($(this)); }); + $(fields).unbind(settings.fieldEvents, checkForm); + $(fields).bind(settings.fieldEvents, checkForm); + $form.data("ays-orig-field-count", $(fields).length); + setDirtyStatus($form, false); + }; + + var setDirtyStatus = function($form, isDirty) { + var changed = isDirty != $form.hasClass(settings.dirtyClass); + $form.toggleClass(settings.dirtyClass, isDirty); + + // Fire change event if required + if (changed) { + if (settings.change) settings.change.call($form, $form); + + if (isDirty) $form.trigger('dirty.areYouSure', [$form]); + if (!isDirty) $form.trigger('clean.areYouSure', [$form]); + $form.trigger('change.areYouSure', [$form]); + } + }; + + var rescan = function() { + var $form = $(this); + var fields = $form.find(settings.fieldSelector); + $(fields).each(function() { + var $field = $(this); + if (!$field.data('ays-orig')) { + storeOrigValue($field); + $field.bind(settings.fieldEvents, checkForm); + } + }); + // Check for changes while we're here + $form.trigger('checkform.areYouSure'); + }; + + var reinitialize = function() { + initForm($(this)); + } + + if (!settings.silent && !window.aysUnloadSet) { + window.aysUnloadSet = true; + $(window).bind('beforeunload', function() { + $dirtyForms = $("form").filter('.' + settings.dirtyClass); + if ($dirtyForms.length == 0) { + return; + } + // Prevent multiple prompts - seen on Chrome and IE + if (navigator.userAgent.toLowerCase().match(/msie|chrome/)) { + if (window.aysHasPrompted) { + return; + } + window.aysHasPrompted = true; + window.setTimeout(function() {window.aysHasPrompted = false;}, 900); + } + return settings.message; + }); + } + + return this.each(function(elem) { + if (!$(this).is('form')) { + return; + } + var $form = $(this); + + $form.submit(function() { + $form.removeClass(settings.dirtyClass); + }); + $form.bind('reset', function() { setDirtyStatus($form, false); }); + // Add a custom events + $form.bind('rescan.areYouSure', rescan); + $form.bind('reinitialize.areYouSure', reinitialize); + $form.bind('checkform.areYouSure', checkForm); + initForm($form); + }); + }; +})(jQuery); |