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/*! | ||
* 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 = $.extend( | ||
{ | ||
'message' : 'You have unsaved changes!', | ||
'dirtyClass' : 'dirty', | ||
'change' : null, | ||
'silent' : false, | ||
'addRemoveFieldsMarksDirty' : false, | ||
'fieldEvents' : 'change keyup propertychange input', | ||
'fieldSelector': ":input:not(input[type=submit]):not(input[type=button])" | ||
}, options); | ||
|
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var getValue = function($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'; | ||
} | ||
|
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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 = $field.val(); | ||
} | ||
|
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return val; | ||
}; | ||
|
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var storeOrigValue = function($field) { | ||
$field.data('ays-orig', getValue($field)); | ||
}; | ||
|
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var checkForm = function(evt) { | ||
|
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var isFieldDirty = function($field) { | ||
var origValue = $field.data('ays-orig'); | ||
if (undefined === origValue) { | ||
return false; | ||
} | ||
return (getValue($field) != origValue); | ||
}; | ||
|
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var $form = ($(this).is('form')) | ||
? $(this) | ||
: $(this).parents('form'); | ||
|
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// Test on the target first as it's the most likely to be dirty | ||
if (isFieldDirty($(evt.target))) { | ||
setDirtyStatus($form, true); | ||
return; | ||
} | ||
|
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$fields = $form.find(settings.fieldSelector); | ||
|
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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; | ||
} | ||
} | ||
|
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// Brute force - check each field | ||
var isDirty = false; | ||
$fields.each(function() { | ||
$field = $(this); | ||
if (isFieldDirty($field)) { | ||
isDirty = true; | ||
return false; // break | ||
} | ||
}); | ||
|
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setDirtyStatus($form, isDirty); | ||
}; | ||
|
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var initForm = function($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); | ||
}; | ||
|
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var setDirtyStatus = function($form, isDirty) { | ||
var changed = isDirty != $form.hasClass(settings.dirtyClass); | ||
$form.toggleClass(settings.dirtyClass, isDirty); | ||
|
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// Fire change event if required | ||
if (changed) { | ||
if (settings.change) settings.change.call($form, $form); | ||
|
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if (isDirty) $form.trigger('dirty.areYouSure', [$form]); | ||
if (!isDirty) $form.trigger('clean.areYouSure', [$form]); | ||
$form.trigger('change.areYouSure', [$form]); | ||
} | ||
}; | ||
|
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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 | ||
$form.trigger('checkform.areYouSure'); | ||
}; | ||
|
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var reinitialize = function() { | ||
initForm($(this)); | ||
} | ||
|
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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; | ||
}); | ||
} | ||
|
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return this.each(function(elem) { | ||
if (!$(this).is('form')) { | ||
return; | ||
} | ||
var $form = $(this); | ||
|
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$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); |
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