/*

YUI 3.10.3 (build 2fb5187)

Copyright 2013 Yahoo! Inc. All rights reserved.

Licensed under the BSD License.

http://yuilibrary.com/license/

*/

YUI.add('shim-plugin', function (Y, NAME) {

    /**

     * Provides shimming support for Node via a Plugin.

     * This fixes SELECT bleedthrough for IE6 & Mac scrollbars

     * @module shim-plugin

     */

    /**

     * Node plugin which can be used to add shim support.

     *

     * @class Plugin.Shim

     * @param {Object} User configuration object

     */

    function Shim(config) {

        this.init(config);

    }

    /**

     * Default class used to mark the shim element

     *

     * @property CLASS_NAME

     * @type String

     * @static

     * @default "yui-node-shim"

     */

    // TODO: use ClassNameManager

    Shim.CLASS_NAME = 'yui-node-shim';

    /**

     * Default markup template used to generate the shim element.

     * 

     * @property TEMPLATE

     * @type String

     * @static

     */

    Shim.TEMPLATE = '<iframe class="' + Shim.CLASS_NAME +

            '" frameborder="0" title="Node Stacking Shim"' +

            'src="javascript:false" tabindex="-1" role="presentation"' +

            'style="position:absolute; z-index:-1;"></iframe>';

    Shim.prototype = {

        init: function(config) {

            this._host = config.host;

            this.initEvents();

            this.insert();

            this.sync();

        },

        initEvents: function() {

            this._resizeHandle = this._host.on('resize', this.sync, this);

        },

        getShim: function() {

            return this._shim || (

                this._shim = Y.Node.create(

                    Shim.TEMPLATE,

                    this._host.get('ownerDocument')

                )

            );

        },

        insert: function() {

            var node = this._host;

            this._shim = node.insertBefore( this.getShim(),

                    node.get('firstChild'));

        },

        /**

         * Updates the size of the shim to fill its container

         * @method sync

         */

        sync: function() {

            var shim = this._shim,

                node = this._host;

            if (shim) {

                shim.setAttrs({

                    width: node.getStyle('width'),

                    height: node.getStyle('height')

                });

            }

        },

        /**

         * Removes the shim and destroys the plugin

         * @method destroy

         */

        destroy: function() {

            var shim = this._shim;

            if (shim) {

                shim.remove(true);

            }

            this._resizeHandle.detach();

        }

    };

    Shim.NAME = 'Shim';

    Shim.NS = 'shim';

    Y.namespace('Plugin');

    Y.Plugin.Shim = Shim;

}, '3.10.3', {"requires": ["node-style", "node-pluginhost"]});