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/>.

/**

 * Admin Bookmarks Block page.

 *

 * @package    block_admin_bookmarks

 * @copyright  2011 Moodle

 * @author     2006 vinkmar

 *             2011 Rossiani Wijaya (updated)

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

 */

/**

 * The admin bookmarks block class

 */

class block_admin_bookmarks extends block_base {

    /** @var string */

    public $blockname = null;

    /** @var bool|null */

    protected $docked = null;

    /**

     * Set the initial properties for the block

     */

    function init() {

        $this->blockname = get_class($this);

        $this->title = get_string('pluginname', $this->blockname);

    }

    /**

     * All multiple instances of this block

     * @return bool Returns false

     */

    function instance_allow_multiple() {

        return false;

    }

    /**

     * Set the applicable formats for this block to all

     * @return array

     */

    function applicable_formats() {

        if (has_capability('moodle/site:config', context_system::instance())) {

            return array('all' => true);

        } else {

            return array('site' => true);

        }

    }

    /**

     * Gets the content for this block

     */

    function get_content() {

        global $CFG;

        // First check if we have already generated, don't waste cycles

        if ($this->content !== null) {

            return $this->content;

        }

        $this->content = new stdClass();

        if (get_user_preferences('admin_bookmarks')) {

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

            $adminroot = admin_get_root(false, false);  // settings not required - only pages

            $bookmarks = explode(',', get_user_preferences('admin_bookmarks'));

            /// Accessibility: markup as a list.

            $contents = array();

            foreach($bookmarks as $bookmark) {

                $temp = $adminroot->locate($bookmark);

                if ($temp instanceof admin_settingpage) {

                    $contenturl = new moodle_url('/admin/settings.php', array('section'=>$bookmark));

                    $contentlink = html_writer::link($contenturl, $temp->visiblename);

                    $contents[] = html_writer::tag('li', $contentlink);

                } else if ($temp instanceof admin_externalpage) {

                    $contenturl = new moodle_url($temp->url);

                    $contentlink = html_writer::link($contenturl, $temp->visiblename);

                    $contents[] = html_writer::tag('li', $contentlink);

                } else if ($temp instanceof admin_category) {

                    $contenturl = new moodle_url('/admin/category.php', array('category' => $bookmark));

                    $contentlink = html_writer::link($contenturl, $temp->visiblename);

                    $contents[] = html_writer::tag('li', $contentlink);

                }

            }

            $this->content->text = html_writer::tag('ol', implode('', $contents), array('class' => 'list'));

        } else {

            $bookmarks = array();

        }

        $this->content->footer = '';

        $this->page->settingsnav->initialise();

        $node = $this->page->settingsnav->get('root', navigation_node::TYPE_SITE_ADMIN);

        if (!$node || !$node->contains_active_node()) {

            return $this->content;

        }

        $section = $node->find_active_node()->key;

        if ($section == 'search' || empty($section)){

            // the search page can't be properly bookmarked at present

            $this->content->footer = '';

        } else if (in_array($section, $bookmarks)) {

            $deleteurl = new moodle_url('/blocks/admin_bookmarks/delete.php', array('section'=>$section, 'sesskey'=>sesskey()));

            $this->content->footer =  html_writer::link($deleteurl, get_string('unbookmarkthispage','admin'));

        } else {

            $createurl = new moodle_url('/blocks/admin_bookmarks/create.php', array('section'=>$section, 'sesskey'=>sesskey()));

            $this->content->footer = html_writer::link($createurl, get_string('bookmarkthispage','admin'));

        }

        return $this->content;

    }

    /**

     * Returns the role that best describes the admin bookmarks block.

     *

     * @return string

     */

    public function get_aria_role() {

        return 'navigation';

    }

}