Proyectos de Subversion Moodle

<?php

// This file is part of the customcert module for 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/>.

/**

 * This file contains the customcert element background image's core interaction API.

 *

 * @package    customcertelement_bgimage

 * @copyright  2016 Mark Nelson <markn@moodle.com>

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

 */

namespace customcertelement_bgimage;

/**

 * The customcert element background image's core interaction API.

 *

 * @package    customcertelement_bgimage

 * @copyright  2016 Mark Nelson <markn@moodle.com>

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

 */

class element extends \customcertelement_image\element {

    /**

     * This function renders the form elements when adding a customcert element.

     *

     * @param \MoodleQuickForm $mform the edit_form instance

     */

    public function render_form_elements($mform) {

        $mform->addElement('select', 'fileid', get_string('image', 'customcertelement_image'), self::get_images());

        $mform->addElement('filemanager', 'customcertimage', get_string('uploadimage', 'customcert'), '',

            $this->filemanageroptions);

    }

    /**

     * Performs validation on the element values.

     *

     * @param array $data the submitted data

     * @param array $files the submitted files

     * @return array the validation errors

     */

    public function validate_form_elements($data, $files) {

        // Array to return the errors.

        return [];

    }

    /**

     * Handles rendering the element on the pdf.

     *

     * @param \pdf $pdf the pdf object

     * @param bool $preview true if it is a preview, false otherwise

     * @param \stdClass $user the user we are rendering this for

     */

    public function render($pdf, $preview, $user) {

        // If there is no element data, we have nothing to display.

        if (empty($this->get_data())) {

            return;

        }

        $imageinfo = json_decode($this->get_data());

        // If there is no file, we have nothing to display.

        if (empty($imageinfo->filename)) {

            return;

        }

        if ($file = $this->get_file()) {

            $location = make_request_directory() . '/target';

            $file->copy_content_to($location);

            // Set the image to the size of the PDF page.

            $mimetype = $file->get_mimetype();

            if ($mimetype == 'image/svg+xml') {

                $pdf->ImageSVG($location, 0, 0, $pdf->getPageWidth(), $pdf->getPageHeight());

            } else {

                $pdf->Image($location, 0, 0, $pdf->getPageWidth(), $pdf->getPageHeight());

            }

        }

    }

    /**

     * Render the element in html.

     *

     * This function is used to render the element when we are using the

     * drag and drop interface to position it.

     *

     * @return string the html

     */

    public function render_html() {

        global $DB;

        // If there is no element data, we have nothing to display.

        if (empty($this->get_data())) {

            return '';

        }

        $imageinfo = json_decode($this->get_data());

        // If there is no file, we have nothing to display.

        if (empty($imageinfo->filename)) {

            return '';

        }

        if ($file = $this->get_file()) {

            $url = \moodle_url::make_pluginfile_url($file->get_contextid(), 'mod_customcert', 'image', $file->get_itemid(),

                $file->get_filepath(), $file->get_filename());

            // Get the page we are rendering this on.

            $page = $DB->get_record('customcert_pages', ['id' => $this->get_pageid()], '*', MUST_EXIST);

            // Set the image to the size of the page.

            $style = 'width: ' . $page->width . 'mm; height: ' . $page->height . 'mm';

            return \html_writer::tag('img', '', ['src' => $url, 'style' => $style]);

        }

    }

}