/**
 * @license
 * Copyright (C) 2012-2013 KO GmbH <copyright@kogmbh.com>
 *
 * @licstart
 * The JavaScript code in this page is free software: you can redistribute it
 * and/or modify it under the terms of the GNU Affero General Public License
 * (GNU AGPL) as published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.  The code is distributed
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU AGPL for more details.
 *
 * As additional permission under GNU AGPL version 3 section 7, you
 * may distribute non-source (e.g., minimized or compacted) forms of
 * that code without the copy of the GNU GPL normally required by
 * section 4, provided you include this license notice and a URL
 * through which recipients can access the Corresponding Source.
 *
 * As a special exception to the AGPL, any HTML file which merely makes function
 * calls to this code, and for that purpose includes it by reference shall be
 * deemed a separate work for copyright law purposes. In addition, the copyright
 * holders of this code give you permission to combine this code with free
 * software libraries that are released under the GNU LGPL. You may copy and
 * distribute such a system following the terms of the GNU AGPL for this code
 * and the LGPL for the libraries. If you modify this code, you may extend this
 * exception to your version of the code, but you are not obligated to do so.
 * If you do not wish to do so, delete this exception statement from your
 * version.
 *
 * This license applies to this entire compilation.
 * @licend
 * @source: http://www.webodf.org/
 * @source: http://gitorious.org/webodf/webodf/
 */

/*global define,require,document */

define("webodf/editor/widgets/zoomSlider", [], function () {
    "use strict";

    return function ZoomSlider(callback) {
        var editorSession,
            slider;

        function makeWidget(callback) {
            require(["dijit/form/HorizontalSlider", "dijit/form/NumberTextBox", "dojo"], function (HorizontalSlider, NumberTextBox, dojo) {
                var widget = {};

                slider = new HorizontalSlider({
                    name: 'zoomSlider',
                    value: 100,
                    minimum: 30,
                    maximum: 150,
                    discreteValues: 100,
                    intermediateChanges: true,
                    style: {
                        width: '150px',
                        height: '25px',
                        float: 'right'
                    }
                });

                slider.onChange = function (value) {
                    if (editorSession) {
                        editorSession.getOdfCanvas().setZoomLevel(value / 100.0);
                    }
                };

                return callback(slider);
            });
        }

        this.setEditorSession = function(session) {
            editorSession = session;
//             if (slider) { slider.setValue(editorSession.getOdfCanvas().getZoomLevel() ); TODO!
        };

        // init
        makeWidget(function (widget) {
            return callback(widget);
        });
    };
});