/*
This file is part of Ext JS 4.2

Copyright (c) 2011-2013 Sencha Inc

Contact:  http://www.sencha.com/contact

GNU General Public License Usage
This file may be used under the terms of the GNU General Public License version 3.0 as
published by the Free Software Foundation and appearing in the file LICENSE included in the
packaging of this file.

Please review the following information to ensure the GNU General Public License version 3.0
requirements will be met: http://www.gnu.org/copyleft/gpl.html.

If you are unsure which license is appropriate for your use, please contact the sales department
at http://www.sencha.com/contact.

Build date: 2013-03-11 22:33:40 (aed16176e68b5e8aa1433452b12805c0ad913836)
*/
/**
 * @class Ext.fx.target.Component
 * 
 * This class represents a animation target for a {@link Ext.Component}. In general this class will not be
 * created directly, the {@link Ext.Component} will be passed to the animation and
 * and the appropriate target will be created.
 */
Ext.define('Ext.fx.target.Component', {

    /* Begin Definitions */
   
    extend: 'Ext.fx.target.Target',
    
    /* End Definitions */

    type: 'component',

    // Methods to call to retrieve unspecified "from" values from a target Component
    getPropMethod: {
        top: function() {
            return this.getPosition(true)[1];
        },
        left: function() {
            return this.getPosition(true)[0];
        },
        x: function() {
            return this.getPosition()[0];
        },
        y: function() {
            return this.getPosition()[1];
        },
        height: function() {
            return this.getHeight();
        },
        width: function() {
            return this.getWidth();
        },
        opacity: function() {
            return this.el.getStyle('opacity');
        }
    },

    setMethods: {
        top:     'setPosition',
        left:    'setPosition',
        x:       'setPagePosition',
        y:       'setPagePosition',
        height:  'setSize',
        width:   'setSize',
        opacity: 'setOpacity'
    },

    // Read the named attribute from the target Component. Use the defined getter for the attribute
    getAttr: function(attr, val) {
        return [[this.target, val !== undefined ? val : this.getPropMethod[attr].call(this.target)]];
    },

    setAttr: function(targetData, isFirstFrame, isLastFrame) {
        var me = this,
            ln = targetData.length,
            attrs, attr, o, i, j, targets, left, top, w, h,
            methodsToCall = {},
            methodProps;

        for (i = 0; i < ln; i++) {
            attrs = targetData[i].attrs;
            for (attr in attrs) {
                targets = attrs[attr].length;
                for (j = 0; j < targets; j++) {
                    o = attrs[attr][j];
                    methodProps = methodsToCall[me.setMethods[attr]] || (methodsToCall[me.setMethods[attr]] = {});
                    methodProps.target = o[0];
                    methodProps[attr] = o[1];
                    // debugging code: Ext.log('Setting ' + o[0].id + "'s " + attr + ' to ' + o[1]);
                }
            }
            if (methodsToCall.setPosition) {
                o = methodsToCall.setPosition;
                left = (o.left === undefined) ? undefined : parseFloat(o.left);
                top = (o.top === undefined) ? undefined : parseFloat(o.top);
                o.target.setPosition(left, top);
            }
            if (methodsToCall.setPagePosition) {
                o = methodsToCall.setPagePosition;
                o.target.setPagePosition(o.x, o.y);
            }
            if (methodsToCall.setSize) {
                o = methodsToCall.setSize;
                // Dimensions not being animated MUST NOT be autosized. They must remain at current value.
                w = (o.width === undefined) ? o.target.getWidth() : parseFloat(o.width);
                h = (o.height === undefined) ? o.target.getHeight() : parseFloat(o.height);

                // Only set the size of the Component on the last frame, or if the animation was
                // configured with dynamic: true.
                // In other cases, we just set the target element size.
                // This will result in either clipping if animating a reduction in size, or the revealing of
                // the inner elements of the Component if animating an increase in size.
                // Component's animate function initially resizes to the larger size before resizing the
                // outer element to clip the contents.
                o.target.el.setSize(w, h);
                if (isLastFrame || me.dynamic) {
                    // Defer the final sizing & layout until we are outside of this frame.
                    // In case anything in the resulting layout calls animation.
                    // If it does, *this* frame will fire again... recursively
                    Ext.globalEvents.on({
                        idle: Ext.Function.bind(o.target.setSize, o.target, [w, h]),
                        single: true
                    });
                }
            }
            if (methodsToCall.setOpacity) {
                o = methodsToCall.setOpacity;
                o.target.el.setStyle('opacity', o.opacity);
            }
        }
    }
});
