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/>.

/**

 * This file contains all necessary code to define a wiki editor

 *

 * @package mod_wiki

 * @copyright 2009 Marc Alier, Jordi Piguillem marc.alier@upc.edu

 * @copyright 2009 Universitat Politecnica de Catalunya http://www.upc.edu

 *

 * @author Josep Arus

 *

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

 */

require_once($CFG->dirroot.'/lib/formslib.php');

require_once($CFG->dirroot.'/lib/form/textarea.php');

require_once($CFG->dirroot.'/lib/form/templatable_form_element.php');

class MoodleQuickForm_wikieditor extends MoodleQuickForm_textarea {

    use templatable_form_element {

        export_for_template as export_for_template_base;

    }

    private $files;

    /** @var string */

    protected $wikiformat;

    /**

     * Constructor

     *

     * @param string $elementName (optional) name of the text field

     * @param string $elementLabel (optional) text field label

     * @param string $attributes (optional) Either a typical HTML attribute string or an associative array

     */

    function __construct($elementName = null, $elementLabel = null, $attributes = null) {

        if (isset($attributes['wiki_format'])) {

            $this->wikiformat = $attributes['wiki_format'];

            unset($attributes['wiki_format']);

        }

        if (isset($attributes['files'])) {

            $this->files = $attributes['files'];

            unset($attributes['files']);

        }

        parent::__construct($elementName, $elementLabel, $attributes);

        $this->_type = 'wikieditor';

    }

    /**

     * Old syntax of class constructor. Deprecated in PHP7.

     *

     * @deprecated since Moodle 3.1

     */

    public function MoodleQuickForm_wikieditor($elementName = null, $elementLabel = null, $attributes = null) {

        debugging('Use of class name as constructor is deprecated', DEBUG_DEVELOPER);

        self::__construct($elementName, $elementLabel, $attributes);

    }

    function setWikiFormat($wikiformat) {

        $this->wikiformat = $wikiformat;

    }

    function toHtml() {

        $textarea = parent::toHtml();

        return $this->{

            $this->wikiformat."Editor"}

            ($textarea);

    }

    function creoleEditor($textarea) {

        return $this->printWikiEditor($textarea);

    }

    function nwikiEditor($textarea) {

        return $this->printWikiEditor($textarea);

    }

    private function printWikiEditor($textarea) {

        global $OUTPUT;

        $textarea = $OUTPUT->container_start().$textarea.$OUTPUT->container_end();

        $buttons = $this->getButtons();

        return $buttons.$textarea;

    }

    private function getButtons() {

        global $PAGE, $OUTPUT, $CFG;

        $editor = $this->wikiformat;

        $tag = $this->getTokens($editor, 'bold');

        $wiki_editor['bold'] = array('ed_bold.gif', get_string('wikiboldtext', 'wiki'), $tag[0], $tag[1], get_string('wikiboldtext', 'wiki'));

        $tag = $this->getTokens($editor, 'italic');

        $wiki_editor['italic'] = array('ed_italic.gif', get_string('wikiitalictext', 'wiki'), $tag[0], $tag[1], get_string('wikiitalictext', 'wiki'));

        $imagetag = $this->getTokens($editor, 'image');

        $wiki_editor['image'] = array('ed_img.gif', get_string('wikiimage', 'wiki'), $imagetag[0], $imagetag[1], get_string('wikiimage', 'wiki'));

        $tag = $this->getTokens($editor, 'link');

        $wiki_editor['internal'] = array('ed_internal.gif', get_string('wikiinternalurl', 'wiki'), $tag[0], $tag[1], get_string('wikiinternalurl', 'wiki'));

        $tag = $this->getTokens($editor, 'url');

        $wiki_editor['external'] = array('ed_external.gif', get_string('wikiexternalurl', 'wiki'), $tag, "", get_string('wikiexternalurl', 'wiki'));

        $tag = $this->getTokens($editor, 'list');

        $wiki_editor['u_list'] = array('ed_ul.gif', get_string('wikiunorderedlist', 'wiki'), '\\n'.$tag[0], '', '');

        $wiki_editor['o_list'] = array('ed_ol.gif', get_string('wikiorderedlist', 'wiki'), '\\n'.$tag[1], '', '');

        $tag = $this->getTokens($editor, 'header');

        $wiki_editor['h1'] = array('ed_h1.gif', get_string('wikiheader', 'wiki', 1), '\\n'.$tag.' ', ' '.$tag.'\\n', get_string('wikiheader', 'wiki', 1));

        $wiki_editor['h2'] = array('ed_h2.gif', get_string('wikiheader', 'wiki', 2), '\\n'.$tag.$tag.' ', ' '.$tag.$tag.'\\n', get_string('wikiheader', 'wiki', 2));

        $wiki_editor['h3'] = array('ed_h3.gif', get_string('wikiheader', 'wiki', 3), '\\n'.$tag.$tag.$tag.' ', ' '.$tag.$tag.$tag.'\\n', get_string('wikiheader', 'wiki', 3));

        $tag = $this->getTokens($editor, 'line_break');

        $wiki_editor['hr'] = array('ed_hr.gif', get_string('wikihr', 'wiki'), '\\n'.$tag.'\\n', '', '');

        $tag = $this->getTokens($editor, 'nowiki');

        $wiki_editor['nowiki'] = array('ed_nowiki.gif', get_string('wikinowikitext', 'wiki'), $tag[0], $tag[1], get_string('wikinowikitext', 'wiki'));

        $PAGE->requires->js('/mod/wiki/editors/wiki/buttons.js');

        $html = '<div class="wikieditor-toolbar">';

        foreach ($wiki_editor as $button) {

            $html .= "<a href=\"javascript:insertTags";

            $html .= "('".$button[2]."','".$button[3]."','".$button[4]."');\">";

            $html .= html_writer::empty_tag('img', array('alt' => $button[1], 'src' => $CFG->wwwroot . '/mod/wiki/editors/wiki/images/' . $button[0]));

            $html .= "</a>";

        }

        $html .= "<label class='accesshide' for='addtags'>" . get_string('insertimage', 'wiki')  . "</label>";

        $html .= "<select id='addtags' class='custom-select mx-1' " .

                 "onchange=\"insertTags('{$imagetag[0]}', '{$imagetag[1]}', this.value)\">";

        $html .= "<option value='" . s(get_string('wikiimage', 'wiki')) . "'>" . get_string('insertimage', 'wiki') . '</option>';

        foreach ($this->files as $filename) {

            $html .= "<option value='".s($filename)."'>";

            $html .= $filename;

            $html .= '</option>';

        }

        $html .= '</select>';

        $html .= $OUTPUT->help_icon('insertimage', 'wiki');

        $html .= '</div>';

        return $html;

    }

    private function getTokens($format, $token) {

        $tokens = wiki_parser_get_token($format, $token);

        if (is_array($tokens)) {

            foreach ($tokens as & $t) {

                $this->escapeToken($t);

            }

        } else {

            $this->escapeToken($tokens);

        }

        return $tokens;

    }

    private function escapeToken(&$token) {

        $token = urlencode(str_replace("'", "\'", $token));

    }

    public function export_for_template(renderer_base $output) {

        $context = $this->export_for_template_base($output);

        // We do want the form-control class on the output from toHTML - but we dont' want it when calling export_for_template.

        // This is because in this type of form element the export_for_template calls toHTML to get the html for the context.

        // If we did both we would be duplicating the form-control which messes up the styles.

        $saved = $this->getAttribute('class');

        $this->updateAttributes(['class' => $saved . ' form-control']);

        $context['html'] = $this->toHtml();

        $this->updateAttributes(['class' => $saved]);

        return $context;

    }

}

//register wikieditor

MoodleQuickForm::registerElementType('wikieditor', $CFG->dirroot."/mod/wiki/editors/wikieditor.php", 'MoodleQuickForm_wikieditor');