/*
 * jQuery UI Effects Shake
 *
 * Copyright (c) 2008 Aaron Eisenberger (aaronchi@gmail.com)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 * 
 * http://docs.jquery.com/UI/Effects/Shake
 *
 * Depends:
 *	effects.core.js
 */
(function($) {
$.effects.shake = function(o) {
return this.queue(function() {
// Create element
var el = $(this), props = ['position','top','left'];
// Set options
var mode = $.effects.setMode(el, o.options.mode || 'effect'); // Set Mode
var direction = o.options.direction || 'left'; // Default direction
var distance = o.options.distance || 20; // Default distance
var times = o.options.times || 3; // Default # of times
var speed = o.duration || o.options.duration || 140; // Default speed per shake
// Adjust
$.effects.save(el, props); el.show(); // Save & Show
$.effects.createWrapper(el); // Create Wrapper
var ref = (direction == 'up' || direction == 'down') ? 'top' : 'left';
var motion = (direction == 'up' || direction == 'left') ? 'pos' : 'neg';
// Animation
var animation = {}, animation1 = {}, animation2 = {};
animation[ref] = (motion == 'pos' ? '-=' : '+=')  + distance;
animation1[ref] = (motion == 'pos' ? '+=' : '-=')  + distance * 2;
animation2[ref] = (motion == 'pos' ? '-=' : '+=')  + distance * 2;
// Animate
el.animate(animation, speed, o.options.easing);
for (var i = 1; i < times; i++) { // Shakes
el.animate(animation1, speed, o.options.easing).animate(animation2, speed, o.options.easing);
};
el.animate(animation1, speed, o.options.easing).
animate(animation, speed / 2, o.options.easing, function(){ // Last shake
$.effects.restore(el, props); $.effects.removeWrapper(el); // Restore
if(o.callback) o.callback.apply(this, arguments); // Callback
});
el.queue('fx', function() { el.dequeue(); });
el.dequeue();
});
};
})(jQuery);