build/animation/animation-debug.js

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/*
Copyright (c) 2007, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.4.0
*/
/*
Copyright (c) 2006, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
*/

/**
 * The animation module provides allows effects to be added to HTMLElements.
 * @module animation
 * @requires yahoo, event, dom
 */

/**
 *
 * Base animation class that provides the interface for building animated effects.
 * <p>Usage: var myAnim = new YAHOO.util.Anim(el, { width: { from: 10, to: 100 } }, 1, YAHOO.util.Easing.easeOut);</p>
 * @class Anim
 * @namespace YAHOO.util
 * @requires YAHOO.util.AnimMgr
 * @requires YAHOO.util.Easing
 * @requires YAHOO.util.Dom
 * @requires YAHOO.util.Event
 * @requires YAHOO.util.CustomEvent
 * @constructor
 * @param {String | HTMLElement} el Reference to the element that will be animated
 * @param {Object} attributes The attribute(s) to be animated.  
 * Each attribute is an object with at minimum a "to" or "by" member defined.  
 * Additional optional members are "from" (defaults to current value), "units" (defaults to "px").  
 * All attribute names use camelCase.
 * @param {Number} duration (optional, defaults to 1 second) Length of animation (frames or seconds), defaults to time-based
 * @param {Function} method (optional, defaults to YAHOO.util.Easing.easeNone) Computes the values that are applied to the attributes per frame (generally a YAHOO.util.Easing method)
 */

YAHOO.util.Anim = function(el, attributes, duration, method) {
    if (!el) {
        YAHOO.log('element required to create Anim instance', 'error', 'Anim');
    }
    this.init(el, attributes, duration, method); 
};

YAHOO.util.Anim.prototype = {
    /**
     * Provides a readable name for the Anim instance.
     * @method toString
     * @return {String}
     */
    toString: function() {
        var el = this.getEl();
        var id = el.id || el.tagName || el;
        return ("Anim " + id);
    },
    
    patterns: { // cached for performance
        noNegatives:        /width|height|opacity|padding/i, // keep at zero or above
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