lib.php

<?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/>.

/**
 * Library functions for MathType for TinyMCE.
 *
 * @package    tinymce
 * @subpackage tiny_mce_wiris
 * @copyright  WIRIS Europe (Maths for more S.L)
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class tinymce_tiny_mce_wiris extends editor_tinymce_plugin {
    protected $buttons = array('tiny_mce_wiris_formulaEditor', 'tiny_mce_wiris_CAS');

    /**
     * Set plugin init parameters.
     *
     * @param array $params The parameters to be updated.
     * @param context $context The context that the editor is used within.
     * @param array $options The options passed in when requesting the editor.
     */
    protected function update_init_params(array &$params, context $context,
                                          array $options = null) {
        global $PAGE, $CFG, $COURSE;
        // We need to know if MathType filter are active in the context of the course.
        // If not MathTYPe filter should be disabled.

        // Set Course parameters to be retrieved by Telemetry.
        $params['moodleCourseCategory'] = $COURSE->category;
        $params['moodleCourseName'] = $COURSE->fullname;
        $params['moodleVersion'] = $CFG->branch;

        // Get MathType and Chemistry buttons enabled configuration.
        $editorisactive = get_config('filter_wiris', 'editor_enable');
        $chemistryisactive = get_config('filter_wiris', 'chem_editor_enable');

        if (!get_config('filter_wiris', 'allow_editorplugin_active_course')) {
            $context = context_course::instance($COURSE->id);
            $activefilters = filter_get_active_in_context($context);
            // Moodle 2.4 array key: filter/wiris instead of wiris.
            $filterwirisactive = array_key_exists('wiris', $activefilters) || array_key_exists('filter/wiris', $activefilters);
            if (!$filterwirisactive) {
                return;
            } else {
                // Filter disabled at activity level.
                $pagecontext = $PAGE->context;
                // Check if context is context module.
                // We need to check only module context. Other contexts (like block context)
                // shouldn't be checked.
                if ($pagecontext instanceof context_module) {
                    $activefilters = filter_get_active_in_context($PAGE->context);
                    // Moodle 2.4 array key: filter/wiris instead of wiris.
                    $filterwirisactive = array_key_exists('wiris', $activefilters);
                    $filterwirisactive = $filterwirisactive || array_key_exists('filter/wiris', $activefilters);
                    if (!$filterwirisactive) {
                        return;
                    }
                }
            }
        }
        $PAGE->requires->strings_for_js(
        array(
        'error_connection'
        ),
        'tinymce_tiny_mce_wiris');

        // Add button after emoticon button in advancedbuttons3.
        if ($editorisactive) {
            $added = $this->add_button_after($params, 3, 'tiny_mce_wiris_formulaEditor', '', false);
        }
        if ($chemistryisactive) {
            $added = $this->add_button_after($params, 3, 'tiny_mce_wiris_formulaEditorChemistry', '', false);
        }
        // Add JS file using 'plugin.min.js' instead of default name.
        $this->add_js_plugin($params);
    }
}