portal.mkgtu.ru/clientSide/packs/js/jquery.are-you-sure.js

197 lines
6.5 KiB
JavaScript
Executable File

/*!
* 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;
}
var $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 () {
var $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 () {
var $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);