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 Atto.
 *
 * @package    atto_wiris
 * @subpackage wiris
 * @copyright  WIRIS Europe (Maths for more S.L)
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

/**
 * Initialise the js strings required for this module.
 */
function atto_wiris_strings_for_js() {
    global $PAGE;
    $PAGE->requires->strings_for_js(
      [
        'wiris_editor_title',
        'wiris_chem_editor_title',
      ],
      'atto_wiris');
}

/**
 * Set parameters to be passed to the js plugin constructor.
 */
function atto_wiris_params_for_js() {
    global $COURSE, $PAGE, $CFG;
    // We need to know if  MathType filter are active in the context of the course.
    // If not MathType for Atto should be disabled.

    $filterwirisactive = true;
    // Get MathType and Chemistry buttons enabled configuration.
    $editorisactive = get_config('filter_wiris', 'editor_enable');
    $chemistryisactive = get_config('filter_wiris', 'chem_editor_enable');
    // Filter disabled at course level.
    if (!get_config('filter_wiris', 'allow_editorplugin_active_course')) {
        $context = context_course::instance($COURSE->id);
        $activefilters = filter_get_active_in_context($context);
        $filterwirisactive = array_key_exists('wiris', $activefilters);

        // Filter disabled at activity level.
        if ($filterwirisactive) {
            // Check if context is context module.
            $pagecontext = $PAGE->context;
            // We need to check only module context. Other contexts (like block context)
            // shouldn't be checked.
            if ($pagecontext instanceof context_module) {
                $activefilters = filter_get_active_in_context($PAGE->context);
                $filterwirisactive = array_key_exists('wiris', $activefilters);
            }
        } else {
            // If filter is deactivated and allowalways is disabled we don't add buttons.
            $editorisactive = false;
            $chemistryisactive = false;
        }
    }

    // Atto js plugin checks if the filter is - or not - active.
    return ['lang' => current_language(),
                'filter_enabled' => $filterwirisactive,
                'version' => get_config('atto_wiris', 'version'),
                'editor_is_active' => $editorisactive,
                'chemistry_is_active' => $chemistryisactive,
                "moodleCourse" => $COURSE,
                'moodleVersion' => $CFG->branch];
}