jquery-ui/ui/jquery.effects.clip.js

/*
 * 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.effect.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" ),
			show = mode === "show",
			direction = o.direction || "vertical",
			vert = direction === "vertical",
			size = vert ? "height" : "width",
			position = vert ? "top" : "left",
			animation = {},
			wrapper, animate, distance;

		// Save & Show
		$.effects.save( el, props );
		el.show();

		// Create Wrapper
		wrapper = $.effects.createWrapper( el ).css({
			overflow: "hidden"
		});
		animate = ( el[0].tagName === "IMG" ) ? wrapper : el;
		distance = animate[ size ]();

		// Shift
		if ( show ) {
			animate.css( size, 0 );
			animate.css( position, distance / 2 );
		}

		// Create Animation Object:
		animation[ size ] = show ? distance : 0;
		animation[ position ] = show ? 0 : distance / 2;

		// Animate
		animate.animate( animation, {
			queue: false,
			duration: o.duration,
			easing: o.easing,
			complete: function() {
				if ( !show ) {
					el.hide();
				}
				$.effects.restore( el, props );
				$.effects.removeWrapper( el );
				if ( $.isFunction( o.complete ) ) {
					o.complete.apply( el[ 0 ], arguments );
				}
				el.dequeue();
			}
		});

	});

};

})(jQuery);