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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
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/**
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 * Render H5P content from an H5P file.
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 *
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 * @package    core_h5p
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 * @copyright  2019 Sara Arjona <sara@moodle.com>
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 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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 */
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require_once(__DIR__ . '/../config.php');
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// The login check is done inside the player when getting the file from the url param.
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$url = required_param('url', PARAM_LOCALURL);
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$config = new stdClass();
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$config->frame = optional_param('frame', 0, PARAM_INT);
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$config->export = optional_param('export', 0, PARAM_INT);
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$config->embed = optional_param('embed', 0, PARAM_INT);
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$config->copyright = optional_param('copyright', 0, PARAM_INT);
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$preventredirect = optional_param('preventredirect', true, PARAM_BOOL);
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$component = optional_param('component', '', PARAM_COMPONENT);
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$PAGE->set_url(new \moodle_url('/h5p/embed.php', array('url' => $url)));
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try {
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    $h5pplayer = new \core_h5p\player($url, $config, $preventredirect, $component);
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    $messages = $h5pplayer->get_messages();
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} catch (\Exception $e) {
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    $messages = (object) [
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        'exception' => $e->getMessage(),
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    ];
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}
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if (empty($messages->error) && empty($messages->exception)) {
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    // Configure page.
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    $context = $h5pplayer->get_context();
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    if ($context instanceof context_module) {
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        [$course, $cm] = get_course_and_cm_from_cmid($context->instanceid);
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        $PAGE->set_cm($cm, $course);
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        $PAGE->activityheader->disable();
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    } else {
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        $PAGE->set_context($context);
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    }
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    $PAGE->set_title($h5pplayer->get_title());
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    $PAGE->set_heading($h5pplayer->get_title());
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    // Embed specific page setup.
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    $PAGE->add_body_class('h5p-embed');
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    $PAGE->set_pagelayout('embedded');
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    // Load the embed.js to allow communication with the parent window.
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    $PAGE->requires->js(new moodle_url('/h5p/js/embed.js'));
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    // Add H5P assets to the page.
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    $h5pplayer->add_assets_to_page();
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    // Print page HTML.
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    echo $OUTPUT->header();
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    // Check if some error has been raised when adding assets to the page. If that's the case, display them above the H5P content.
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    $messages = $h5pplayer->get_messages();
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    if (!empty($messages->exception) || !empty($messages->error)) {
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        $messages->h5picon = new \moodle_url('/h5p/pix/icon.svg');
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        echo $OUTPUT->render_from_template('core_h5p/h5perror', $messages);
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    }
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    // Display the H5P content.
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    echo $h5pplayer->output();
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} else {
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    // If there is any error or exception when creating the player, it should be displayed.
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    $PAGE->set_context(context_system::instance());
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    $title = get_string('h5p', 'core_h5p');
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    $PAGE->set_title($title);
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    $PAGE->set_heading($title);
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    $PAGE->add_body_class('h5p-embed');
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    $PAGE->set_pagelayout('embedded');
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    // Load the embed.js to allow communication with the parent window.
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    $PAGE->requires->js(new moodle_url('/h5p/js/embed.js'));
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    echo $OUTPUT->header();
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    // Print all the errors.
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    $messages->h5picon = new \moodle_url('/h5p/pix/icon.svg');
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    echo $OUTPUT->render_from_template('core_h5p/h5perror', $messages);
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}
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echo $OUTPUT->footer();