'use strict';

/* --------------------------------------------------------------
 image_resizer.js 2016-02-23
 Gambio GmbH
 http://www.gambio.de
 Copyright (c) 2016 Gambio GmbH
 Released under the GNU General Public License (Version 2)
 [http://www.gnu.org/licenses/gpl-2.0.html]
 --------------------------------------------------------------
 */

jse.libs.image_resizer = jse.libs.image_resizer || {};

/**
 * ## Image Resizer Library
 *
 * Resizes images with respective aspect ratio.
 *
 * @module JSE/Libs/image_resizer
 * @exports jse.libs.image_resizer
 */
(function (exports) {

    'use strict';

    /**
     * Resize an image element with the provided width and height values.
     *
     * @param {string} element Selector string for the image element to be resized.
     * @param {object} options (optional) This object must contain the "width" and "height" properties.
     */

    exports.resize = function (element, options) {

        var $that = $(element);
        var settings = {
            width: 150,
            height: 150
        };
        options = $.extend(settings, options);

        var maxWidth = options.width;
        var maxHeight = options.height;
        var ratio = 0;
        var width = $that.width();
        var height = $that.height();

        if (width > maxWidth) {
            ratio = maxWidth / width;
            $that.css('width', maxWidth);
            $that.css('height', height * ratio);
        }

        if (height > maxHeight) {
            ratio = maxHeight / height;
            $that.css('height', maxHeight);
            $that.css('width', width * ratio);
        }
    };
})(jse.libs.image_resizer);
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