/* --------------------------------------------------------------
 more_text.js 2016-03-09
 Gambio GmbH
 http://www.gambio.de
 Copyright (c) 2015 Gambio GmbH
 Released under the GNU General Public License (Version 2)
 [http://www.gnu.org/licenses/gpl-2.0.html]
 --------------------------------------------------------------
 */

/**
 * Enables the 'more' or '...' buttons in long text fields.
 */
gambio.widgets.module(
    'more_text',

    [
        gambio.source + '/libs/events'
    ],

    function (data) {

        'use strict';

// ########## VARIABLE INITIALIZATION ##########

        var $this = $(this),
            transition = {
                classClose: 'hide',
                open: true,
                calcHeight: true
            },
            defaults = {},
            options = $.extend(true, {}, defaults, data),
            module = {};


// ########## EVENT HANDLER ##########

        /**
         * Event handler for the click event on the '...'-more
         * button. It starts the transition to open the full
         * text
         * @param       {object}    e       jQuery event object
         * @private
         */
        var _openText = function (e) {
            e.preventDefault();

            var $self = $(this),
                $container = $self.closest('.more-text-container'),
                $fullText = $container.children('.more-text-full');

            $self.hide();
            $fullText.trigger(jse.libs.theme.events.TRANSITION(), transition);
        };


// ########## INITIALIZATION ##########

        /**
         * Init function of the widget
         * @constructor
         */
        module.init = function (done) {

            $this.on('click', '.more-text-container .more-text-link', _openText);

            done();
        };

        // Return data to widget engine
        return module;
    });