/**
  * Generate the content to displayed on the left part of a section
  * before course modules are included
  *
  * @param stdClass $section The course_section entry from DB
  * @param stdClass $course The course entry from DB
  * @param bool $onsectionpage true if being printed on a section page
  * @return string HTML to output.
  */
 protected function section_left_content($section, $course, $onsectionpage)
 {
     $o = $this->output->spacer();
     if ($section->section != 0) {
         // Only in the non-general sections.
         if (course_get_format($course)->is_section_current($section)) {
             $o .= get_accesshide(get_string('currentsection', 'format_' . $course->format));
         }
     }
     return $o;
 }

 function print_header($title)
 {
     global $USER, $CFG;
     $replacements = array('%fullname%' => get_string('mymoodle', 'my'));
     foreach ($replacements as $search => $replace) {
         $title = str_replace($search, $replace, $title);
     }
     $site = get_site();
     $button = update_mymoodle_icon($USER->id);
     $nav = get_string('mymoodle', 'my');
     $header = $site->shortname . ': ' . $nav;
     $navlinks = array(array('name' => $nav, 'link' => '', 'type' => 'misc'));
     $navigation = build_navigation($navlinks);
     $loggedinas = user_login_string($site);
     if (empty($CFG->langmenu)) {
         $langmenu = '';
     } else {
         $currlang = current_language();
         $langs = get_list_of_languages();
         $langlabel = get_accesshide(get_string('language'));
         $langmenu = popup_form($CFG->wwwroot . '/my/index.php?lang=', $langs, 'chooselang', $currlang, '', '', '', true, 'self', $langlabel);
     }
     print_header($title, $header, $navigation, '', '', true, $button, $loggedinas . $langmenu);
 }

     if ($showsection) {
         $sectionmenu[$section] = get_section_name($course, $thissection);
     }
     $section++;
     continue;
 }
 if ($showsection) {
     //what is course marker?
     $currenttopic = $course->marker == $section;
     $currenttext = '';
     if (!$thissection->visible) {
         $sectionstyle = ' hidden';
     } else {
         if ($currenttopic) {
             $sectionstyle = ' current';
             $currenttext = get_accesshide(get_string('currenttopic', 'format_bootstraptabs'));
         } else {
             $sectionstyle = '';
         }
     }
     //the default action is to set the name of each topic to null.
     $secname = $thissection->name;
     //this will set the name of undefined sections to a number.
     if ($secname == null) {
         $secname = $secname . $num;
         $num++;
     }
     if (has_capability('moodle/course:viewhiddensections', $context) || $thissection->visible) {
         if ($section == 1) {
             echo '<div role="tabpanel" class="tab-pane fade in active" id="section-' . $section . '">';
         } else {

    if (count($data) > 1) {
        // Chart only works if more than 1 record.
        $PAGE->requires->yui_module('moodle-forumngfeature_usage-usagegraph', 'M.mod_forumng.forumngfeature_usage_chart.output', array($data, $axes, $options));
    }
    $usageoutput .= html_writer::start_div('forumng_usage_usagechart');
    $help = $OUTPUT->help_icon('usagechartpoststot', 'forumngfeature_usage');
    $usageoutput .= $OUTPUT->heading(get_string('usagechartpoststotal', 'forumngfeature_usage', $postcount) . $help, 4);
    $usageoutput .= $dateform->render();
    // Accessible table of chart.
    $charttable = new html_table();
    $charttable->head = array($datelabel, $postslabel, $totallabel);
    $charttable->data = $data;
    $charttable->summary = get_string('usagechartpoststable', 'forumngfeature_usage');
    if (count($data) > 1) {
        // Show table hidden for screenreaders (also keyboard focus toggled by css).
        $usageoutput .= get_accesshide(html_writer::table($charttable), 'div', 'skip', 'tabindex = 0');
        $usageoutput .= html_writer::div('', 'forumng_usage_chart', array('id' => 'usagechart'));
    } else {
        // Show table instead of chart.
        $usageoutput .= html_writer::table($charttable);
    }
    $usageoutput .= html_writer::end_div();
}
if ($forum->can_view_subscribers()) {
    // View subscriber info.
    $subs = $forum->get_subscribers($groupid);
    $discussioncount = 0;
    $groupcount = 0;
    $wholecount = 0;
    foreach ($subs as $subscriber) {
        if (!empty($subscriber->wholeforum)) {

/**
 * Return the left arrow with text ('previous'), and optionally embedded in a link.
 *
 * @global object
 * @param string $text HTML/plain text label (set to blank only for breadcrumb separator cases).
 * @param string $url An optional link to use in a surrounding HTML anchor.
 * @param bool $accesshide True if text should be hidden (for screen readers only).
 * @param string $addclass Additional class names for the link, or the arrow character.
 * @return string HTML string.
 */
function link_arrow_left($text, $url = '', $accesshide = false, $addclass = '')
{
    global $OUTPUT;
    // TODO: move to utput renderer
    $arrowclass = 'arrow ';
    if (!$url) {
        $arrowclass .= $addclass;
    }
    $arrow = '<span class="' . $arrowclass . '">' . $OUTPUT->larrow() . '</span>';
    $htmltext = '';
    if ($text) {
        $htmltext = '&nbsp;<span class="arrow_text">' . $text . '</span>';
        if ($accesshide) {
            $htmltext = get_accesshide($htmltext);
        }
    }
    if ($url) {
        $class = 'arrow_link';
        if ($addclass) {
            $class .= ' ' . $addclass;
        }
        return '<a class="' . $class . '" href="' . $url . '" title="' . preg_replace('/<.*?>/', '', $text) . '">' . $arrow . $htmltext . '</a>';
    }
    return $arrow . $htmltext;
}

//.........这里部分代码省略.........
                        } else {
                            if ($event->groupid) {
                                // Group event
                                $popupicon = $CFG->pixpath . '/c/group.gif';
                                $popupalt = '';
                            } else {
                                if ($event->userid) {
                                    // User event
                                    $popupicon = $CFG->pixpath . '/c/user.gif';
                                    $popupalt = '';
                                }
                            }
                        }
                    }
                }
                $popupcontent .= '<div><img class="icon" src="' . $popupicon . '" alt="' . $popupalt . '" /><a href="' . $dayhref . '#event_' . $event->id . '">' . format_string($event->name, true) . '</a></div>';
            }
            //Accessibility: functionality moved to calendar_get_popup.
            if ($display->thismonth && $day == $d) {
                $popup = calendar_get_popup(true, $events[$eventid]->timestart, $popupcontent);
            } else {
                $popup = calendar_get_popup(false, $events[$eventid]->timestart, $popupcontent);
            }
            // Class and cell content
            if (isset($typesbyday[$day]['startglobal'])) {
                $class .= ' event_global';
            } else {
                if (isset($typesbyday[$day]['startcourse'])) {
                    $class .= ' event_course';
                } else {
                    if (isset($typesbyday[$day]['startgroup'])) {
                        $class .= ' event_group';
                    } else {
                        if (isset($typesbyday[$day]['startuser'])) {
                            $class .= ' event_user';
                        }
                    }
                }
            }
            $cell = '<a href="' . $dayhref . '" ' . $popup . '>' . $day . '</a>';
        } else {
            $cell = $day;
        }
        if (isset($typesbyday[$day]['durationglobal'])) {
            $class .= ' duration_global';
        } else {
            if (isset($typesbyday[$day]['durationcourse'])) {
                $class .= ' duration_course';
            } else {
                if (isset($typesbyday[$day]['durationgroup'])) {
                    $class .= ' duration_group';
                } else {
                    if (isset($typesbyday[$day]['durationuser'])) {
                        $class .= ' duration_user';
                    }
                }
            }
        }
        // If event has a class set then add it to the table day <td> tag
        // Note: only one colour for minicalendar
        if (isset($eventsbyday[$day])) {
            foreach ($eventsbyday[$day] as $eventid) {
                if (!isset($events[$eventid])) {
                    continue;
                }
                $event = $events[$eventid];
                if (!empty($event->class)) {
                    $class .= ' ' . $event->class;
                }
                break;
            }
        }
        // Special visual fx for today
        //Accessibility: hidden text for today, and popup.
        if ($display->thismonth && $day == $d) {
            $class .= ' today';
            $today = get_string('today', 'calendar') . ' ' . userdate(time(), get_string('strftimedayshort'));
            if (!isset($eventsbyday[$day])) {
                $class .= ' eventnone';
                $popup = calendar_get_popup(true, false);
                $cell = '<a href="#" ' . $popup . '>' . $day . '</a>';
            }
            $cell = get_accesshide($today . ' ') . $cell;
        }
        // Just display it
        if (!empty($class)) {
            $class = ' class="' . $class . '"';
        }
        $content .= '<td' . $class . '>' . $cell . "</td>\n";
    }
    // Paddding (the last week may have blank days at the end)
    for ($i = $dayweek; $i <= $display->maxwday; ++$i) {
        $content .= '<td class="dayblank">&nbsp;</td>';
    }
    $content .= '</tr>';
    // Last row ends
    $content .= '</table>';
    // Tabular display of days ends
    return $content;
}

 /**
  * This function is not part of the public api.
  */
 function print_headers()
 {
     global $CFG, $OUTPUT;
     echo '<tr>';
     foreach ($this->columns as $column => $index) {
         $icon_hide = '';
         $icon_sort = '';
         if ($this->is_collapsible) {
             if (!empty($this->sess->collapse[$column])) {
                 // some headers contain < br/> tags, do not include in title
                 $icon_hide = ' <a href="' . $this->baseurl . $this->request[ILP_TABLE_VAR_SHOW] . '=' . $column . '"><img src="' . $OUTPUT->pix_url('t/switch_plus') . '" title="' . get_string('show') . ' ' . strip_tags($this->headers[$index]) . '" alt="' . get_string('show') . '" /></a>';
             } else {
                 if ($this->headers[$index] !== NULL) {
                     // some headers contain < br/> tags, do not include in title
                     $icon_hide = ' <a href="' . $this->baseurl . $this->request[ILP_TABLE_VAR_HIDE] . '=' . $column . '"><img src="' . $OUTPUT->pix_url('t/switch_minus') . '" title="' . get_string('hide') . ' ' . strip_tags($this->headers[$index]) . '" alt="' . get_string('hide') . '" /></a>';
                 }
             }
         }
         $primary_sort_column = '';
         $primary_sort_order = '';
         if (reset($this->sess->sortby)) {
             $primary_sort_column = key($this->sess->sortby);
             $primary_sort_order = current($this->sess->sortby);
         }
         switch ($column) {
             case 'fullname':
                 if ($this->is_sortable($column)) {
                     $icon_sort_first = $icon_sort_last = '';
                     if ($primary_sort_column == 'firstname') {
                         $lsortorder = get_string('asc');
                         if ($primary_sort_order == SORT_ASC) {
                             $icon_sort_first = ' <img src="' . $OUTPUT->pix_url('t/down') . '" alt="' . get_string('asc') . '" />';
                             $fsortorder = get_string('asc');
                         } else {
                             $icon_sort_first = ' <img src="' . $OUTPUT->pix_url('t/up') . '" alt="' . get_string('desc') . '" />';
                             $fsortorder = get_string('desc');
                         }
                     } else {
                         if ($primary_sort_column == 'lastname') {
                             $fsortorder = get_string('asc');
                             if ($primary_sort_order == SORT_ASC) {
                                 $icon_sort_last = ' <img src="' . $OUTPUT->pix_url('t/down') . '" alt="' . get_string('asc') . '" />';
                                 $lsortorder = get_string('asc');
                             } else {
                                 $icon_sort_last = ' <img src="' . $OUTPUT->pix_url('t/up') . '" alt="' . get_string('desc') . '" />';
                                 $lsortorder = get_string('desc');
                             }
                         } else {
                             $fsortorder = get_string('asc');
                             $lsortorder = get_string('asc');
                         }
                     }
                     $override = new object();
                     $override->firstname = 'firstname';
                     $override->lastname = 'lastname';
                     $fullnamelanguage = get_string('fullnamedisplay', '', $override);
                     if ($CFG->fullnamedisplay == 'firstname lastname' or $CFG->fullnamedisplay == 'firstname' or $CFG->fullnamedisplay == 'language' and $fullnamelanguage == 'firstname lastname') {
                         $this->headers[$index] = '<a href="' . $this->baseurl . $this->request[ILP_TABLE_VAR_SORT] . '=firstname">' . get_string('firstname') . get_accesshide(get_string('sortby') . ' ' . get_string('firstname') . ' ' . $fsortorder) . '</a> ' . $icon_sort_first . ' / ' . '<a href="' . $this->baseurl . $this->request[ILP_TABLE_VAR_SORT] . '=lastname">' . get_string('lastname') . get_accesshide(get_string('sortby') . ' ' . get_string('lastname') . ' ' . $lsortorder) . '</a> ' . $icon_sort_last;
                     } else {
                         $this->headers[$index] = '<a href="' . $this->baseurl . $this->request[ILP_TABLE_VAR_SORT] . '=lastname">' . get_string('lastname') . get_accesshide(get_string('sortby') . ' ' . get_string('lastname') . ' ' . $lsortorder) . '</a> ' . $icon_sort_last . ' / ' . '<a href="' . $this->baseurl . $this->request[ILP_TABLE_VAR_SORT] . '=firstname">' . get_string('firstname') . get_accesshide(get_string('sortby') . ' ' . get_string('firstname') . ' ' . $fsortorder) . '</a> ' . $icon_sort_first;
                     }
                 }
                 break;
             case 'userpic':
                 // do nothing, do not display sortable links
                 break;
             default:
                 if ($this->is_sortable($column)) {
                     if ($primary_sort_column == $column) {
                         if ($primary_sort_order == SORT_ASC) {
                             $icon_sort = ' <img src="' . $OUTPUT->pix_url('t/down') . '" alt="' . get_string('asc') . '" />';
                             $localsortorder = get_string('asc');
                         } else {
                             $icon_sort = ' <img src="' . $OUTPUT->pix_url('t/up') . '" alt="' . get_string('desc') . '" />';
                             $localsortorder = get_string('desc');
                         }
                     } else {
                         $localsortorder = get_string('asc');
                     }
                     $this->headers[$index] = '<a href="' . $this->baseurl . $this->request[ILP_TABLE_VAR_SORT] . '=' . $column . '">' . $this->headers[$index] . get_accesshide(get_string('sortby') . ' ' . $this->headers[$index] . ' ' . $localsortorder) . '</a>';
                 }
         }
         if ($this->headers[$index] === NULL) {
             echo '<th class="header c' . $index . $this->column_class[$column] . '" scope="col">&nbsp;</th>';
         } else {
             if (!empty($this->sess->collapse[$column])) {
                 echo '<th class="header c' . $index . $this->column_class[$column] . '" scope="col">' . $icon_hide . '</th>';
             } else {
                 // took out nowrap for accessibility, might need replacement
                 if (!is_array($this->column_style[$column])) {
                     // $usestyles = array('white-space:nowrap');
                     $usestyles = '';
                 } else {
                     // $usestyles = $this->column_style[$column]+array('white-space'=>'nowrap');
                     $usestyles = $this->column_style[$column];
                 }
                 echo '<th class="header c' . $index . $this->column_class[$column] . '" ' . $this->make_styles_string($usestyles) . ' scope="col">' . $this->headers[$index] . $icon_sort . '<div class="commands">' . $icon_hide . '</div></th>';
//.........这里部分代码省略.........

//.........这里部分代码省略.........
                $instancename = format_string($modinfo->cms[$modnumber]->name, true,  $course->id);
              #  echo format_string($modinfo->cms[$modnumber]->intro, true,  $course->id);
              #  echo format_string($modinfo->cms[$modnumber]->name, true,  $course->id);
              #  print_r($modinfo->cms[$modnumber]);

                $customicon = $modinfo->cms[$modnumber]->icon;
                if (!empty($customicon)) {
                    if (substr($customicon, 0, 4) === 'mod/') {
                        list($modname, $iconname) = explode('/', substr($customicon, 4), 2);
                        $icon = $OUTPUT->pix_url($iconname, $modname);
                    } else {
                        $icon = $OUTPUT->pix_url($customicon);
                    }
                } else {
                    $icon = $OUTPUT->pix_url('icon', $mod->modname);
                }

                //Accessibility: for files get description via icon, this is very ugly hack!
                $altname = '';
                $altname = $mod->modfullname;
                if (!empty($customicon)) {
                    $archetype = plugin_supports('mod', $mod->modname, FEATURE_MOD_ARCHETYPE, MOD_ARCHETYPE_OTHER);
                    if ($archetype == MOD_ARCHETYPE_RESOURCE) {
                        $mimetype = mimeinfo_from_icon('type', $customicon);
                        $altname = get_mimetype_description($mimetype);
                    }
                }
                // Avoid unnecessary duplication.
                if (false !== stripos($instancename, $altname)) {
                    $altname = '';
                }
                // File type after name, for alphabetic lists (screen reader).
                if ($altname) {
                    $altname = get_accesshide(' '.$altname);
                }

                // We may be displaying this just in order to show information
                // about visibility, without the actual link
                if ($mod->uservisible) {
                    // Display normal module link
                    if (!$accessiblebutdim) {
                        $linkcss = '';
                        $accesstext  ='';
                    } else {
                        $linkcss = ' class="dimmed" ';
                        $accesstext = '<span class="accesshide">'.
                            get_string('hiddenfromstudents').': </span>';
                    }

                    echo '<a '.$linkcss.' '.$extra.
                         ' href="'.$CFG->wwwroot.'/mod/'.$mod->modname.'/view.php?id='.$mod->id.'">'.
                         '<img src="'.$icon.'" class="activityicon" alt="'.get_string('modulename',$mod->modname).'" /> '.
                         $accesstext.'<span class="instancename">'.$instancename.$altname.'</span></a>';

                    if (!empty($mod->groupingid) && has_capability('moodle/course:managegroups', get_context_instance(CONTEXT_COURSE, $course->id))) {
                        if (!isset($groupings)) {
                            $groupings = groups_get_all_groupings($course->id);
                        }
                        echo " <span class=\"groupinglabel\">(".format_string($groupings[$mod->groupingid]->name).')</span>';
                    }
                } else {
                    // Display greyed-out text of link
                    echo '<span class="dimmed_text" '.$extra.' ><span class="accesshide">'.
                        get_string('notavailableyet','condition').': </span>'.
                        '<img src="'.$icon.'" class="activityicon" alt="'.get_string('modulename', $mod->modname).'" /> <span>'.
                        $instancename.$altname.'</span></span>';

 /**
  * Generate the HTML for the sort link. This is a helper method used by {@link print_headers()}.
  * @param string $text the text for the link.
  * @param string $column the column name, may be a fake column like 'firstname' or a real one.
  * @param bool $isprimary whether the is column is the current primary sort column.
  * @param int $order SORT_ASC or SORT_DESC
  * @return string HTML fragment.
  */
 protected function sort_link($text, $column, $isprimary, $order)
 {
     return html_writer::link($this->baseurl->out(false, array($this->request[TABLE_VAR_SORT] => $column)), $text . get_accesshide(get_string('sortby') . ' ' . $text . ' ' . $this->sort_order_name($isprimary, $order))) . ' ' . $this->sort_icon($isprimary, $order);
 }

 /**
  * Renders html to display the module content on the course page (i.e. text of the labels)
  *
  * @param cm_info $mod
  * @param array $displayoptions
  * @return string
  */
 public function course_section_cm_text(cm_info $mod, $displayoptions = array())
 {
     $output = '';
     if (!$mod->uservisible && (empty($mod->showavailability) || empty($mod->availableinfo))) {
         // nothing to be displayed to the user
         return $output;
     }
     $content = $mod->get_formatted_content(array('overflowdiv' => true, 'noclean' => true));
     $conditionalhidden = $this->is_cm_conditionally_hidden($mod);
     $accessiblebutdim = !$mod->visible || $conditionalhidden;
     $textclasses = '';
     $accesstext = '';
     if ($accessiblebutdim) {
         $textclasses .= ' dimmed_text';
         if ($conditionalhidden) {
             $textclasses .= ' conditionalhidden';
         }
         if ($mod->uservisible) {
             // show accessibility note only if user can access the module himself
             $accesstext = get_accesshide(get_string('hiddenfromstudents') . ': ');
         }
     }
     if ($mod->get_url()) {
         if ($content) {
             // If specified, display extra content after link.
             $output = html_writer::tag('div', $content, array('class' => trim('contentafterlink ' . $textclasses)));
         }
     } else {
         // No link, so display only content.
         $output = html_writer::tag('div', $accesstext . $content, array('class' => $textclasses));
     }
     return $output;
 }

//.........这里部分代码省略.........
                if (!empty($CFG->enablegroupings) && !empty($mod->groupingid) && has_capability('moodle/course:managegroups', get_context_instance(CONTEXT_COURSE, $course->id))) {
                    if (!isset($groupings)) {
                        $groupings = groups_get_all_groupings($course->id);
                    }
                    echo " <span class=\"groupinglabel\">(" . format_string($groupings[$mod->groupingid]->name) . ')</span>';
                }
            } else {
                // Normal activity
                $instancename = format_string($modinfo->cms[$modnumber]->name, true, $course->id);
                if (!empty($modinfo->cms[$modnumber]->icon)) {
                    $icon = "{$CFG->pixpath}/" . $modinfo->cms[$modnumber]->icon;
                } else {
                    $icon = "{$CFG->modpixpath}/{$mod->modname}/icon.gif";
                }
                //Accessibility: for files get description via icon.
                $altname = '';
                if ('resource' == $mod->modname) {
                    if (!empty($modinfo->cms[$modnumber]->icon)) {
                        $possaltname = $modinfo->cms[$modnumber]->icon;
                        $mimetype = mimeinfo_from_icon('type', $possaltname);
                        $altname = get_mimetype_description($mimetype);
                    } else {
                        $altname = $mod->modfullname;
                    }
                } else {
                    $altname = $mod->modfullname;
                }
                // Avoid unnecessary duplication.
                if (false !== stripos($instancename, $altname)) {
                    $altname = '';
                }
                // File type after name, for alphabetic lists (screen reader).
                if ($altname) {
                    $altname = get_accesshide(' ' . $altname);
                }
                $linkcss = $mod->visible ? "" : " class=\"dimmed\" ";
                echo '<a ' . $linkcss . ' ' . $extra . ' href="' . $CFG->wwwroot . '/mod/' . $mod->modname . '/view.php?id=' . $mod->id . '">' . '<img src="' . $icon . '" class="activityicon" alt="" /> <span>' . $instancename . $altname . '</span></a>';
                //echo " $mod->modname ";
                // Special NEWSPAPER magic ... show summry from resource and blog's 200 chars from each post OUBlog (nadavkav)
                if ($mod->modname == 'resource') {
                    $article = get_record('resource', 'id', $mod->instance);
                    //print_r($article );
                    echo "{$article->summary}";
                }
                if ($mod->modname == 'oublog') {
                    require_once $CFG->dirroot . '/mod/oublog/locallib.php';
                    $oublog = get_record('oublog', 'id', $mod->instance);
                    if (!($oublogcm = get_coursemodule_from_instance('oublog', $oublog->id))) {
                        //error("Course module ID was incorrect");
                    }
                    $oublogcontext = get_context_instance(CONTEXT_MODULE, $oublogcm->id);
                    //oublog_check_view_permissions($oublog, $oublogcontext, $oublogcm);
                    $currentgroup = oublog_get_activity_group($oublogcm, true);
                    echo '<br/>';
                    /// Get Posts
                    list($posts, $recordcount) = oublog_get_posts($oublog, $oublogcontext, 0, $oublogcm, $currentgroup);
                    //, -1, $oubloguser->id, $tag, $canaudit);
                    $i = 0;
                    foreach ($posts as $post) {
                        if ($i < 3) {
                            echo '<a href="' . $CFG->wwwroot . '/mod/oublog/viewpost.php?blog=' . $oublog->id . '&post=' . $post->id . '">' . $post->title . '</a><br/>';
                            $summaryformatoptions->noclean = false;
                            echo mb_substr(format_text($post->message, FORMAT_HTML, $summaryformatoptions), 1, 600) . "<hr/>";
                        }
                        if ($i > 2 and $i < 6) {
                            echo '<a href="' . $CFG->wwwroot . '/mod/oublog/viewpost.php?blog=' . $oublog->id . '&post=' . $post->id . '">' . $post->title . '</a><br/>';

//.........这里部分代码省略.........
             // 0-section is displayed a little different then the others.
             if ($thissection->summary or !empty($modinfo->sections[0]) or $PAGE->user_is_editing()) {
                 echo $this->section_header($thissection, $course, false, 0);
                 $courserenderer = $PAGE->get_renderer('core', 'course');
                 echo $courserenderer->course_section_cm_list($course, $thissection, 0);
                 if ($PAGE->user_is_editing()) {
                     echo $courserenderer->course_section_add_cm_control($course, 0, 0);
                 }
                 echo $this->section_footer();
             }
             continue;
         }
         if ($section > $course->numsections) {
             // Activities inside this section are 'orphaned', this section will be printed as 'stealth' below.
             continue;
         }
         // Show the section if the user is permitted to access it, OR if it's not available.
         // but showavailability is turned on (and there is some available info text).
         $proximity = new stdClass();
         if ($thissection->format_gps_restricted == FORMAT_GPS_RESTRICTED) {
             if ($location) {
                 $proximity = format_gps_check_proximity($thissection, $location);
             } else {
                 $proximity->status = 'notallowed';
             }
         } else {
             $proximity->status = 'ok';
         }
         $showsection = $thissection->uservisible || $thissection->visible && !$thissection->available && $thissection->showavailability && !empty($thissection->availableinfo);
         if (!$showsection || $proximity->status == 'toofar' || $proximity->status == 'notallowed') {
             if ($PAGE->user_is_editing() && has_capability('moodle/course:update', $context)) {
                 // Do nothing.
             } else {
                 $thissection->visible = false;
                 // Hidden section message is overridden by 'unavailable' control
                 // (showavailability option).
                 if ($proximity->status == 'toofar') {
                     if (!$course->hiddensections && $thissection->available) {
                         echo $this->gps_section_hidden($section);
                     }
                 } else {
                     if ($proximity->status == 'notallowed') {
                         if (!$course->hiddensections && $thissection->available) {
                             echo $this->gps_section_notallowed($section);
                         }
                     } else {
                         if (!$course->hiddensections && $thissection->available) {
                             echo $this->section_hidden($section);
                         }
                     }
                 }
                 continue;
             }
         }
         if (!$PAGE->user_is_editing() && $course->coursedisplay == COURSE_DISPLAY_MULTIPAGE) {
             // Display section summary only.
             echo $this->section_summary($thissection, $course, null);
         } else {
             echo $this->section_header($thissection, $course, false, 0);
             if ($thissection->uservisible) {
                 $courserenderer = $PAGE->get_renderer('core', 'course');
                 echo $courserenderer->course_section_cm_list($course, $thissection, 0);
                 if ($PAGE->user_is_editing()) {
                     echo $courserenderer->course_section_add_cm_control($course, $section, 0);
                 }
             }
             echo $this->section_footer();
         }
     }
     if ($PAGE->user_is_editing() and has_capability('moodle/course:update', $context)) {
         // Print stealth sections if present.
         foreach ($modinfo->get_section_info_all() as $section => $thissection) {
             if ($section <= $course->numsections or empty($modinfo->sections[$section])) {
                 // This is not stealth section or it is empty.
                 continue;
             }
             echo $this->stealth_section_header($section);
             $courserenderer = $PAGE->get_renderer('core', 'course');
             echo $courserenderer->course_section_cm_list($course, $thissection, 0);
             echo $this->stealth_section_footer();
         }
         echo $this->end_section_list();
         echo html_writer::start_tag('div', array('id' => 'changenumsections', 'class' => 'mdl-right'));
         // Increase number of sections.
         $straddsection = get_string('increasesections', 'moodle');
         $url = new moodle_url('/course/changenumsections.php', array('courseid' => $course->id, 'increase' => true, 'sesskey' => sesskey()));
         $icon = $this->output->pix_icon('t/switch_plus', $straddsection);
         echo html_writer::link($url, $icon . get_accesshide($straddsection), array('class' => 'increase-sections'));
         if ($course->numsections > 0) {
             // Reduce number of sections sections.
             $strremovesection = get_string('reducesections', 'moodle');
             $url = new moodle_url('/course/changenumsections.php', array('courseid' => $course->id, 'increase' => false, 'sesskey' => sesskey()));
             $icon = $this->output->pix_icon('t/switch_minus', $strremovesection);
             echo html_writer::link($url, $icon . get_accesshide($strremovesection), array('class' => 'reduce-sections'));
         }
         echo html_writer::end_tag('div');
     } else {
         echo $this->end_section_list();
     }
 }

//.........这里部分代码省略.........
             $last = false;
             if ($section > $course->numsections) {
                 // Activities inside this section are 'orphaned', this section will be printed as 'stealth' below.
                 continue;
             }
             if ($section == $course->numsections) {
                 $last = true;
             }
             if ($section == 1) {
                 $first = true;
             }
             /* Show the section if the user is permitted to access it, OR if it's not available
                but there is some available info text which explains the reason & should display. */
             $showsection = $thissection->uservisible || $thissection->visible && !$thissection->available && !empty($thissection->availableinfo);
             if (!$showsection) {
                 continue;
             }
             $tabattributes = array('role' => 'presentation', 'id' => 'navtab' . $section, 'class' => 'tabbednavtab');
             if (!$this->activesection) {
                 $this->activesection = $thissection->section;
                 $tabattributes['class'] = 'tabbednavtab active';
             }
             echo html_writer::start_tag('li', $tabattributes);
             if (!$first) {
                 echo html_writer::tag('div', '', array('class' => 'nav-wedge'));
             }
             echo html_writer::tag('a', $this->courseformat->get_section_name($thissection), array('href' => '#section-' . $thissection->section, 'data-toggle' => 'tab', 'role' => 'tab', 'aria-controls' => 'section-' . $thissection->section));
             if (!$last) {
                 echo html_writer::tag('div', '', array('class' => 'nav-arrow'));
             }
             echo html_writer::end_tag('li');
         }
         echo html_writer::end_tag('ul');
         echo html_writer::start_tag('div', array('id' => 'tabbedcontent', 'class' => 'tab-content'));
     }
     // Tabbed.
     foreach ($sections as $section => $thissection) {
         if ($section > $course->numsections) {
             // Activities inside this section are 'orphaned', this section will be printed as 'stealth' below.
             continue;
         }
         /* Show the section if the user is permitted to access it, OR if it's not available
            but there is some available info text which explains the reason & should display. */
         $showsection = $thissection->uservisible || $thissection->visible && !$thissection->available && !empty($thissection->availableinfo);
         if (!$showsection) {
             /* If the hiddensections option is set to 'show hidden sections in collapsed
                form', then display the hidden section message - UNLESS the section is
                hidden by the availability system, which is set to hide the reason. */
             if (!$course->hiddensections && $thissection->available) {
                 echo $this->section_hidden($section, $course->id);
             }
             continue;
         }
         echo $this->section_header($thissection, $course, false, 0);
         if ($thissection->uservisible) {
             echo $this->courserenderer->course_section_cm_list($course, $thissection, 0);
             echo $this->courserenderer->course_section_add_cm_control($course, $section, 0);
             $sectionnavlinks = $this->get_nav_links($course, $modinfo->get_section_info_all(), $section);
             $navlinks = html_writer::start_tag('div', array('class' => 'section-navigation navigationtitle'));
             $navlinks .= html_writer::tag('span', $sectionnavlinks['previous'], array('class' => 'pull-left'));
             $navlinks .= html_writer::tag('span', $sectionnavlinks['next'], array('class' => 'pull-right'));
             $navlinks .= html_writer::end_tag('div');
             echo $navlinks;
         }
         echo $this->section_footer();
     }
     if ($this->userisediting and has_capability('moodle/course:update', $context)) {
         // Print stealth sections if present.
         foreach ($modinfo->get_section_info_all() as $section => $thissection) {
             if ($section <= $course->numsections or empty($modinfo->sections[$section])) {
                 // This is not stealth section or it is empty.
                 continue;
             }
             echo $this->stealth_section_header($section);
             echo $this->courserenderer->course_section_cm_list($course, $thissection, 0);
             echo $this->stealth_section_footer();
         }
         echo $this->end_section_list();
         echo html_writer::start_tag('div', array('id' => 'changenumsections', 'class' => 'mdl-right'));
         // Increase number of sections.
         $straddsection = get_string('increasesections', 'moodle');
         $url = new moodle_url('/course/changenumsections.php', array('courseid' => $course->id, 'increase' => true, 'sesskey' => sesskey()));
         $icon = $this->output->pix_icon('t/switch_plus', $straddsection);
         echo html_writer::link($url, $icon . get_accesshide($straddsection), array('class' => 'increase-sections'));
         if ($course->numsections > 0) {
             // Reduce number of sections sections.
             $strremovesection = get_string('reducesections', 'moodle');
             $url = new moodle_url('/course/changenumsections.php', array('courseid' => $course->id, 'increase' => false, 'sesskey' => sesskey()));
             $icon = $this->output->pix_icon('t/switch_minus', $strremovesection);
             echo html_writer::link($url, $icon . get_accesshide($strremovesection), array('class' => 'reduce-sections'));
         }
         echo html_writer::end_tag('div');
     } else {
         if ($this->userisediting) {
             echo $this->end_section_list();
         } else {
             echo html_writer::end_tag('div');
         }
     }
 }

//.........这里部分代码省略.........
         if (course_get_format($course)->is_section_current($section)) {
             $style = "active";
             $currentfound = true;
         }
         if ($section == 0) {
             $section0html = $a;
         } else {
             $tabshtml .= html_writer::tag("li", $a, array("role" => "presentation", "class" => $style));
         }
     }
     $style = $currentfound ? "" : "active";
     echo html_writer::tag("li", $section0html, array("role" => "presentation", "class" => $style)) . $tabshtml;
     echo html_writer::end_tag("ul");
     // Now the list of sections..
     echo $this->start_section_list();
     $cmlist = "";
     $firstsection = "";
     $firstsectionhead = "";
     $firstsectionheadactive = "";
     $currentfound = false;
     foreach ($modinfo->get_section_info_all() as $section => $thissection) {
         if (course_get_format($course)->is_section_current($section)) {
             $currentfound = true;
         }
         if ($section == 0) {
             // 0-section is displayed a little different then the others
             if ($thissection->summary or !empty($modinfo->sections[0]) or $PAGE->user_is_editing()) {
                 $firstsectionhead = $this->section_header($thissection, $course, false, 0, false);
                 $firstsectionheadactive = $this->section_header($thissection, $course, false, 0, true);
                 $firstsection .= $this->courserenderer->course_section_cm_list($course, $thissection, 0);
                 $firstsection .= $this->courserenderer->course_section_add_cm_control($course, 0, 0);
                 $firstsection .= $this->section_footer();
             }
             continue;
         }
         if ($section > $course->numsections) {
             // activities inside this section are 'orphaned', this section will be printed as 'stealth' below
             continue;
         }
         // Show the section if the user is permitted to access it, OR if it's not available
         // but there is some available info text which explains the reason & should display.
         $showsection = $thissection->uservisible || $thissection->visible && !$thissection->available && !empty($thissection->availableinfo);
         if (!$showsection) {
             // If the hiddensections option is set to 'show hidden sections in collapsed
             // form', then display the hidden section message - UNLESS the section is
             // hidden by the availability system, which is set to hide the reason.
             if (!$course->hiddensections && $thissection->available) {
                 $cmlist .= $this->section_hidden($section, $course->id);
             }
             continue;
         }
         if (!$PAGE->user_is_editing() && $course->coursedisplay == COURSE_DISPLAY_MULTIPAGE) {
             // Display section summary only.
             $cmlist .= $this->section_summary($thiss