/*
 * jQuery UI Effects Clip @VERSION
 *
 * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://jquery.org/license
 *
 * http://docs.jquery.com/UI/Effects/Clip
 *
 * Depends:
 *	jquery.effects.core.js
 */
(function( $, undefined ) {

$.effects.clip = function(o) {

	return this.queue(function() {

		// Create element
		var el = $( this ), 
			props = ['position','top','bottom','left','right','height','width'], 
			mode = $.effects.setMode( el, o.mode || 'hide' ),
			direction = o.direction || 'vertical'; // Default direction

		// Adjust
		$.effects.save(el, props); el.show(); // Save & Show
		var wrapper = $.effects.createWrapper(el).css({overflow:'hidden'}); // Create Wrapper
		var animate = el[0].tagName == 'IMG' ? wrapper : el;
		var ref = {
			size: (direction == 'vertical') ? 'height' : 'width',
			position: (direction == 'vertical') ? 'top' : 'left'
		};
		var distance = (direction == 'vertical') ? animate.height() : animate.width();
		if(mode == 'show') { animate.css(ref.size, 0); animate.css(ref.position, distance / 2); } // Shift

		// Animation
		var animation = {};
		animation[ref.size] = mode == 'show' ? distance : 0;
		animation[ref.position] = mode == 'show' ? 0 : distance / 2;

		// Animate
		animate.animate(animation, { queue: false, duration: o.duration, easing: o.easing, complete: function() {
			if(mode == 'hide') el.hide(); // Hide
			$.effects.restore(el, props); $.effects.removeWrapper(el); // Restore
			if(o.complete) o.complete.apply(el[0], arguments); // Callback
			el.dequeue();
		}});

	});

};

})(jQuery);