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📄 h5peditor.php(1.72 KB)
📄 libraries.php(3.74 KB)
📄 renderer.php(5.83 KB)

Editing: renderer.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/>.

namespace core_h5p\output;

use plugin_renderer_base;

/**
 * Renderer class.
 *
 * @package    core_h5p
 * @copyright  2020 Victor Deniz {victor@moodle.com}
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class renderer extends plugin_renderer_base {

/**
     * Alter which stylesheets are loaded for H5P.
     * This is useful for adding custom styles or replacing existing ones.
     *
     * This method can be overridden by other themes if the styles must be loaded from
     * a different place than the "Raw initial SCSS" and "Raw SCSS" theme settings.
     *
     * @param \stdClass[] $styles List of stylesheets that will be loaded
     * @param array $libraries Array of libraries indexed by the library's machineName
     * @param string $embedtype Possible values: div, iframe, external, editor
     */
    public function h5p_alter_styles(&$styles, array $libraries, string $embedtype) {
        global $CFG, $DB;

$record = [
            'contextid' => \context_system::instance()->id,
            'component' => \core_h5p\file_storage::COMPONENT,
            'filearea' => \core_h5p\file_storage::CSS_FILEAREA,
            'itemid' => 0,
            'filepath' => '/',
            'filename' => $CFG->theme . '_h5p.css',
        ];
        $fs = get_file_storage();
        // Check if the CSS file for the current theme needs to be updated (because the SCSS settings have changed recently).
        if ($cssfile = $fs->get_file(
                $record['contextid'],
                $record['component'],
                $record['filearea'],
                $record['itemid'],
                $record['filepath'],
                $record['filename'])) {
            // Get the last time when the SCSS and CSSPRE settings were updated for the current theme and compare it with the
            // time modified of the H5P CSS file, to determine whether it needs to be updated.
            $sql = "SELECT MAX(timemodified) as timemodified
                      FROM {config_log}
                     WHERE plugin = :theme AND (name = 'scss' OR name = 'scsspre')";
            $params = ['theme' => 'theme_' . $CFG->theme];
            $setting = $DB->get_record_sql($sql, $params);
            if ($setting && $setting->timemodified > $cssfile->get_timemodified()) {
                // The CSS file needs to be updated. First, delete it to recreate it later with the current CSS.
                $cssfile->delete();
                $cssfile = null;
            }
        }

$theme = \theme_config::load($CFG->theme);
        // When 'Raw initial SCSS' and 'Raw SCSS' theme settings are empty, the file doesn't need to be created.
        if (empty($theme->settings->scsspre) && empty($theme->settings->scss)) {
            return;
        }

// If the CSS file doesn't exist, create it with the styles defined in 'Raw initial SCSS' and 'Raw SCSS' theme settings.
        // As these scss and scsspre settings might have dependencies on the theme, the whole CSS theme content will be used and
        // passed to the H5P player.
        if (!$cssfile) {
            $css = $theme->get_css_content();
            $cssfile = $fs->create_file_from_string($record, $css);
        }

$cssurl = \moodle_url::make_pluginfile_url(
            $record['contextid'],
            $record['component'],
            $record['filearea'],
            null,
            $record['filepath'],
            $record['filename']
        );

// Add the CSS file to the styles array, to load it from the H5P player.
        $styles[] = (object) [
            'path' => $cssurl->out(),
            'version' => '?ver='.$cssfile->get_timemodified(),
        ];
    }

/**
     * Alter which scripts are loaded for H5P.
     * This is useful for adding custom scripts or replacing existing ones.
     *
     * @param array|object $scripts List of JavaScripts that will be loaded
     * @param array $libraries Array of libraries indexed by the library's machineName
     * @param string $embedtype Possible values: div, iframe, external, editor
     */
    public function h5p_alter_scripts(&$scripts, array $libraries, string $embedtype) {
    }

/**
     * Alter semantics before they are processed. This is useful for changing
     * how the editor looks and how content parameters are filtered.
     *
     * @param object|object $semantics Semantics as object
     * @param string $name Machine name of library
     * @param int $majorversion Major version of library
     * @param int $minorversion Minor version of library
     */
    public function h5p_alter_semantics(&$semantics, $name, $majorversion, $minorversion) {
    }

/**
     * Alter parameters of H5P content after it has been filtered through semantics.
     * This is useful for adapting the content to the current context.
     *
     * @param array|object $parameters The content parameters for the library
     * @param string $name The machine readable name of the library
     * @param int $majorversion Major version of the library
     * @param int $minorversion Minor version of the library
     */
    public function h5p_alter_filtered_parameters(&$parameters, string $name, int $majorversion, int $minorversion) {
    }
}

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