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   1  <?php
   2  
   3  // This file is part of Moodle - http://moodle.org/
   4  //
   5  // Moodle is free software: you can redistribute it and/or modify
   6  // it under the terms of the GNU General Public License as published by
   7  // the Free Software Foundation, either version 3 of the License, or
   8  // (at your option) any later version.
   9  //
  10  // Moodle is distributed in the hope that it will be useful,
  11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  // GNU General Public License for more details.
  14  //
  15  // You should have received a copy of the GNU General Public License
  16  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17  
  18  /**
  19   * Provides the interface for overall authoring of lessons
  20   *
  21   * @package mod_lesson
  22   * @copyright  1999 onwards Martin Dougiamas  {@link http://moodle.com}
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   **/
  25  
  26  require_once('../../config.php');
  27  require_once($CFG->dirroot.'/mod/lesson/locallib.php');
  28  
  29  $id = required_param('id', PARAM_INT);
  30  
  31  $cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
  32  $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
  33  $lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
  34  
  35  require_login($course, false, $cm);
  36  
  37  $context = context_module::instance($cm->id);
  38  require_capability('mod/lesson:manage', $context);
  39  
  40  $mode    = optional_param('mode', get_user_preferences('lesson_view', 'collapsed'), PARAM_ALPHA);
  41  $PAGE->set_url('/mod/lesson/edit.php', array('id'=>$cm->id,'mode'=>$mode));
  42  
  43  if ($mode != get_user_preferences('lesson_view', 'collapsed') && $mode !== 'single') {
  44      set_user_preference('lesson_view', $mode);
  45  }
  46  
  47  $lessonoutput = $PAGE->get_renderer('mod_lesson');
  48  $PAGE->navbar->add(get_string('edit'));
  49  echo $lessonoutput->header($lesson, $cm, $mode, false, null, get_string('edit', 'lesson'));
  50  
  51  if (!$lesson->has_pages()) {
  52      // There are no pages; give teacher some options
  53      require_capability('mod/lesson:edit', $context);
  54      echo $lessonoutput->add_first_page_links($lesson);
  55  } else {
  56      switch ($mode) {
  57          case 'collapsed':
  58              echo $lessonoutput->display_edit_collapsed($lesson, $lesson->firstpageid);
  59              break;
  60          case 'single':
  61              $pageid =  required_param('pageid', PARAM_INT);
  62              $PAGE->url->param('pageid', $pageid);
  63              $singlepage = $lesson->load_page($pageid);
  64              echo $lessonoutput->display_edit_full($lesson, $singlepage->id, $singlepage->prevpageid, true);
  65              break;
  66          case 'full':
  67              echo $lessonoutput->display_edit_full($lesson, $lesson->firstpageid, 0);
  68              break;
  69      }
  70  }
  71  
  72  echo $lessonoutput->footer();