source: main/trunk/greenstone3/web/interfaces/oran/js/jquery-ui-1.8rc1/ui/jquery.effects.shake.js@ 24245

/*
 * jQuery UI Effects Shake 1.8rc1
 *
 * Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI/Effects/Shake
 *
 * Depends:
 *  jquery.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);