<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

defined('MOODLE_INTERNAL') || die();

/**
 * Plugin for Moodle 'Toolbar Toggle' button.
 *
 * @package   tinymce_pdw
 * @copyright 2013 Jason Fowler
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class tinymce_pdw extends editor_tinymce_plugin {
    /**
     * Adds pdw toggle button if there are more than one row of buttons in TinyMCE
     *
     * @param array $params TinyMCE init parameters array
     * @param context $context Context where editor is being shown
     * @param array $options Options for this editor
     */
    protected function update_init_params(array &$params, context $context,
            array $options = null) {

        $rowsnumber = $this->count_button_rows($params);
        if ($rowsnumber > 1) {
            $this->add_button_before($params, 1, 'pdw_toggle', '');
            $params['pdw_toggle_on'] = 1;
            $params['pdw_toggle_toolbars'] = join(',', range(2, $rowsnumber));

            // Add JS file, which uses default name.
            $this->add_js_plugin($params);
        }
    }

    /**
     * Gets the order in which to run this plugin
     *
     * We need pdw plugin to be added the last, so nothing is added before the button.
     */
    protected function get_sort_order() {
        return 100000;
    }
}