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/>.

/**

 * Book view page

 *

 * @package    mod_book

 * @copyright  2004-2011 Petr Skoda {@link http://skodak.org}

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

 */

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

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

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

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

$id        = optional_param('id', 0, PARAM_INT);        // Course Module ID

$bid       = optional_param('b', 0, PARAM_INT);         // Book id

$chapterid = optional_param('chapterid', 0, PARAM_INT); // Chapter ID

$edit      = optional_param('edit', -1, PARAM_BOOL);    // Edit mode

// =========================================================================

// security checks START - teachers edit; students view

// =========================================================================

if ($id) {

    $cm = get_coursemodule_from_id('book', $id, 0, false, MUST_EXIST);

    $course = $DB->get_record('course', array('id'=>$cm->course), '*', MUST_EXIST);

    $book = $DB->get_record('book', array('id'=>$cm->instance), '*', MUST_EXIST);

} else {

    $book = $DB->get_record('book', array('id'=>$bid), '*', MUST_EXIST);

    $cm = get_coursemodule_from_instance('book', $book->id, 0, false, MUST_EXIST);

    $course = $DB->get_record('course', array('id'=>$cm->course), '*', MUST_EXIST);

    $id = $cm->id;

}

require_course_login($course, true, $cm);

$context = context_module::instance($cm->id);

require_capability('mod/book:read', $context);

$allowedit  = has_capability('mod/book:edit', $context);

$viewhidden = has_capability('mod/book:viewhiddenchapters', $context);

if ($allowedit) {

    if ($edit != -1 and confirm_sesskey()) {

        $USER->editing = $edit;

    } else {

        if (isset($USER->editing)) {

            $edit = $USER->editing;

        } else {

            $edit = 0;

        }

    }

} else {

    $edit = 0;

}

// read chapters

$chapters = book_preload_chapters($book);

if ($allowedit and !$chapters) {

    redirect('edit.php?cmid='.$cm->id); // No chapters - add new one.

}

// Check chapterid and read chapter data

if ($chapterid == '0') { // Go to first chapter if no given.

    // Trigger course module viewed event.

    book_view($book, null, false, $course, $cm, $context);

    foreach ($chapters as $ch) {

        if ($edit || ($ch->hidden && $viewhidden)) {

            $chapterid = $ch->id;

            break;

        }

        if (!$ch->hidden) {

            $chapterid = $ch->id;

            break;

        }

    }

}

// Prepare header.

$pagetitle = $book->name;

if ($chapter = $DB->get_record('book_chapters', ['id' => $chapterid, 'bookid' => $book->id])) {

    $pagetitle .= ": {$chapter->title}";

}

$PAGE->set_other_editing_capability('mod/book:edit');

$PAGE->set_title($pagetitle);

$PAGE->set_heading($course->fullname);

$PAGE->add_body_class('limitedwidth');

// No content in the book.

if (!$chapterid) {

    $PAGE->set_url('/mod/book/view.php', array('id' => $id));

    echo $OUTPUT->header();

    echo $OUTPUT->notification(get_string('nocontent', 'mod_book'), 'info', false);

} else {

    $PAGE->set_url('/mod/book/view.php', ['id' => $id, 'chapterid' => $chapterid]);

    // The chapter doesnt exist or it is hidden for students.

    if (!$chapter or ($chapter->hidden and !$viewhidden)) {

        $courseurl = new moodle_url('/course/view.php', ['id' => $course->id]);

        throw new moodle_exception('errorchapter', 'mod_book', $courseurl);

    }

    // Add the Book TOC block.

    book_add_fake_block($chapters, $chapter, $book, $cm, $edit);

    book_view($book, $chapter, \mod_book\helper::is_last_visible_chapter($chapter->id, $chapters), $course, $cm, $context);

    echo $OUTPUT->header();

    $renderer = $PAGE->get_renderer('mod_book');

    $actionmenu = new \mod_book\output\main_action_menu($cm->id, $chapters, $chapter, $book);

    $renderedmenu = $renderer->render($actionmenu);

    echo html_writer::div($renderedmenu, '', ['id' => 'mod_book-chaptersnavigation']);

    // The chapter itself.

    $hidden = $chapter->hidden ? ' dimmed_text' : null;

    echo $OUTPUT->box_start('generalbox book_content' . $hidden, 'mod_book-chapter');

    if (!$book->customtitles) {

        if (!$chapter->subchapter) {

            $currtitle = book_get_chapter_title($chapter->id, $chapters, $book, $context);

            echo $OUTPUT->heading($currtitle, 3);

        } else {

            $currtitle = book_get_chapter_title($chapters[$chapter->id]->parent, $chapters, $book, $context);

            $currsubtitle = book_get_chapter_title($chapter->id, $chapters, $book, $context);

            echo $OUTPUT->heading($currtitle, 3);

            echo $OUTPUT->heading($currsubtitle, 4);

        }

    }

    $chaptertext = file_rewrite_pluginfile_urls($chapter->content, 'pluginfile.php', $context->id, 'mod_book',

        'chapter', $chapter->id);

    echo format_text($chaptertext, $chapter->contentformat, ['noclean' => true, 'overflowdiv' => true,

        'context' => $context]);

    echo $OUTPUT->box_end();

    if (core_tag_tag::is_enabled('mod_book', 'book_chapters')) {

        echo $OUTPUT->tag_list(core_tag_tag::get_item_tags('mod_book', 'book_chapters', $chapter->id), null, 'book-tags');

    }

}

echo $OUTPUT->footer();