Proyectos de Subversion Moodle

<?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/>.

/**

 * Theme selector page for admin use.

 *

 * @package core_admin

 * @copyright 2023 David Woloszyn <david.woloszyn@moodle.com>

 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

require_once(__DIR__ . '/../config.php');

require_once($CFG->libdir . '/adminlib.php');

$choose = optional_param('choose', '', PARAM_PLUGIN);

$reset  = optional_param('reset', 0, PARAM_BOOL);

$confirmation = optional_param('confirmation', 0, PARAM_BOOL);

admin_externalpage_setup('themeselector');

unset($SESSION->theme);

$PAGE->set_primary_active_tab('siteadminnode');

$PAGE->navbar->add(get_string('themeselector', 'admin'), $PAGE->url);

$PAGE->set_pagelayout('standard');

// Clear theme cache.

if ($reset && confirm_sesskey()) {

    theme_reset_all_caches();

}

$definedinconfig = array_key_exists('theme', $CFG->config_php_settings);

if ($definedinconfig) {

    $forcedthemename = get_string('pluginname', 'theme_'.$CFG->theme);

    // Show a notification that the theme is defined in config.php.

    \core\notification::info(get_string('themedefinedinconfigphp', 'admin', $forcedthemename));

}

// Change theme.

if (!$definedinconfig && !empty($choose) && confirm_sesskey()) {

    // Load the theme to make sure it is valid.

    $theme = theme_config::load($choose);

    if ($theme instanceof \theme_config) {

        set_config('theme', $theme->name);

        $notifytype = 'success';

        $notifymessage = get_string('themesaved');

    } else {

        $notifytype = 'error';

        $notifymessage = get_string('error');

    }

    // Redirect with notification.

    redirect(new moodle_url('/admin/themeselector.php'), $notifymessage, null, $notifytype);

}

// Insert header.

echo $OUTPUT->header();

// Prepare data for rendering.

$data = [];

$index = 0;

$currentthemeindex = 0;

$themes = core_component::get_plugin_list('theme');

// Loop through available themes.

foreach ($themes as $themename => $themedir) {

    try {

        $theme = theme_config::load($themename);

    } catch (Exception $e) {

        // Bad theme, just skip it for now.

        continue;

    }

    if ($themename !== $theme->name) {

        // Obsoleted or broken theme, just skip for now.

        continue;

    }

    if (empty($CFG->themedesignermode) && $theme->hidefromselector) {

        // The theme doesn't want to be shown in the theme selector and as theme

        // designer mode is switched off we will respect that decision.

        continue;

    }

    // All params for modal use are set here, except for 'choosereadme' (description).

    // That string can be long. We will fetch it with JS as opposed to passing it as an attribute.

    $themedata = [];

    // The 'name' param is formatted and should not to be confused with 'choose'.

    $themedata['name'] = get_string('pluginname', 'theme_'.$themename);;

    $themedata['choose'] = $themename;

    // Image to display for previewing.

    $image = new moodle_url('/theme/image.php', ['theme' => $themename, 'image' => 'screenshot', 'component' => 'theme']);

    $themedata['image'] = $image;

    // Is this the current theme?

    if ($themename === $CFG->theme) {

        $themedata['current'] = true;

        $currentthemeindex = $index;

    } else if (!$definedinconfig) {

        // Form params.

        $actionurl = new moodle_url('/admin/themeselector.php');

        $themedata['actionurl'] = $actionurl;

        $themedata['sesskey'] = sesskey();

    }

    // Settings url.

    $settingspath = "$themedir/settings.php";

    if (file_exists($settingspath)) {

        $section = "themesetting{$themename}";

        $settingsurl = new moodle_url('/admin/settings.php', ['section' => $section]);

        $themedata['settingsurl'] = $settingsurl;

    }

    // Link to the theme usage report if override enabled and it is being used in at least one context.

    if (\core\output\theme_usage::is_theme_used_in_any_context($themename) === \core\output\theme_usage::THEME_IS_USED) {

        $reporturl = new moodle_url($CFG->wwwroot . '/report/themeusage/index.php');

        $reporturl->params(['themechoice' => $themename]);

        $themedata['reporturl'] = $reporturl->out(false);

    }

    $data[$index] = $themedata;

    $index++;

}

// Reorder the array to always have the current theme first.

if (isset($data[$currentthemeindex])) {

    $currenttheme = $data[$currentthemeindex];

    unset($data[$currentthemeindex]);

    array_unshift($data, $currenttheme);

}

// Show theme selector.

$renderable = new \core_admin\output\theme_selector($data, $definedinconfig);

$renderer = $PAGE->get_renderer('core', 'admin');

echo $renderer->theme_selector_list($renderable);

// Show footer.

echo $OUTPUT->footer();