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| Current File : /home1/savoy/www/savoyglobal.net/eduplus1/assets/js/mylibs/jquery.checkbox.js |
/**
* jQuery custom checkboxes
*
* Copyright (c) 2008 Khavilo Dmitry (http://widowmaker.kiev.ua/checkbox/)
* Licensed under the MIT License:
* http://www.opensource.org/licenses/mit-license.php
*
* @version 1.3.0 Beta 1
* @author Khavilo Dmitry
* @mailto wm.morgun@gmail.com
**/
(function($){
/* Little trick to remove event bubbling that causes events recursion */
var CB = function(e)
{
if (!e) var e = window.event;
e.cancelBubble = true;
if (e.stopPropagation) e.stopPropagation();
};
$.fn.checkbox = function(options) {
/* IE6 background flicker fix */
try { document.execCommand('BackgroundImageCache', false, true); } catch (e) {}
/* Default settings */
var settings = {
cls: 'jquery-checkbox', /* checkbox */
empty: 'empty.png' /* checkbox */
};
/* Processing settings */
settings = $.extend(settings, options || {});
/* Adds check/uncheck & disable/enable events */
var addEvents = function(object)
{
var checked = object.checked;
var disabled = object.disabled;
var $object = $(object);
if ( object.stateInterval )
clearInterval(object.stateInterval);
object.stateInterval = setInterval(
function()
{
if ( object.disabled != disabled )
$object.trigger( (disabled = !!object.disabled) ? 'disable' : 'enable');
if ( object.checked != checked )
$object.trigger( (checked = !!object.checked) ? 'check' : 'uncheck');
},
10 /* in miliseconds. Low numbers this can decrease performance on slow computers, high will increase responce time */
);
return $object;
};
//try { console.log(this); } catch(e) {}
/* Wrapping all passed elements */
return this.each(function()
{
var ch = this; /* Reference to DOM Element*/
var $ch = addEvents(ch); /* Adds custom events and returns, jQuery enclosed object */
/* Removing wrapper if already applied */
if (ch.wrapper) ch.wrapper.remove();
/* Creating wrapper for checkbox and assigning "hover" event */
ch.wrapper = $('<span class="' + settings.cls + '"><span class="mark"><img src="' + settings.empty + '" /></span></span>');
ch.wrapperInner = ch.wrapper.children('span:eq(0)');
ch.wrapper.hover(
function(e) { ch.wrapperInner.addClass(settings.cls + '-hover');CB(e); },
function(e) { ch.wrapperInner.removeClass(settings.cls + '-hover');CB(e); }
);
/* Wrapping checkbox */
$ch.addClass('hidden').after(ch.wrapper);
/* Ttying to find "our" label */
var label = false;
if ($ch.attr('id'))
{
label = $('label[for='+$ch.attr('id')+']');
if (!label.length) label = false;
}
if (!label)
{
/* Trying to utilize "closest()" from jQuery 1.3+ */
label = $ch.closest ? $ch.closest('label') : $ch.parents('label:eq(0)');
if (!label.length) label = false;
}
/* Labe found, applying event hanlers */
if (label)
{
label.hover(
function(e) { ch.wrapper.trigger('mouseover', [e]); },
function(e) { ch.wrapper.trigger('mouseout', [e]); }
);
label.click(function(e) { $ch.trigger('click',[e]); CB(e); return false;});
label.mousedown(function () {
ch.wrapperInner.addClass(settings.cls + '-clicked');
}).mouseup(function() {
ch.wrapperInner.removeClass(settings.cls + '-clicked');
});
}
ch.wrapper.click(function(e) { $ch.trigger('click',[e]); CB(e); return false;});
$ch.click(function(e) { CB(e); });
$ch.bind('disable', function() { ch.wrapperInner.addClass(settings.cls+'-disabled');}).bind('enable', function() { ch.wrapperInner.removeClass(settings.cls+'-disabled');});
$ch.bind('check', function() { ch.wrapper.addClass(settings.cls+'-checked' );}).bind('uncheck', function() { ch.wrapper.removeClass(settings.cls+'-checked' );});
/* Disable image drag-n-drop for IE */
$('img', ch.wrapper).bind('dragstart', function () {return false;}); //.bind('mousedown', function () {return false;});
ch.wrapper.mousedown(function () {
ch.wrapperInner.addClass(settings.cls + '-clicked');
}).mouseup(function() {
ch.wrapperInner.removeClass(settings.cls + '-clicked');
});
/* Firefox antiselection hack */
if ( window.getSelection )
ch.wrapper.css('MozUserSelect', 'none');
/* Applying checkbox state */
if ( ch.checked )
ch.wrapper.addClass(settings.cls + '-checked');
if ( ch.disabled )
ch.wrapperInner.addClass(settings.cls + '-disabled');
});
}
})(jQuery);