protected $subpagecm;

/**

* Render contents of main part of subpage

* @param mod_subpage $subpage

* @param course_modinfo $modinfo

* @param array $sections

* @param boolean $editing whether the user is allowed to edit this page

* @param int $moveitem (currently not used)

* @param boolean $movesection whether the user is allowed to move sections

* @return string html for display

*/

public function render_subpage($subpage, $modinfo, $sections, $editing,

$moveitem, $movesection) {

global $PAGE, $OUTPUT, $CFG, $USER;

$this->subpagecm = $subpage->get_course_module()->id;

if (!empty($USER->activitycopy) && $movesection) {

$content = $this->render_cancel_link($this->subpagecm);

} else {

$content = '';

}

$content .= $this->render_intro($subpage);

$streditsummary = get_string('editsummary');

$strdelete = get_string('delete');

if ($editing) {

$strmoveup = get_string('moveup');

$strmovedown = get_string('movedown');

$strhide = get_string('hide');

$strshow = get_string('show');

$strstealth = get_string('stealth', 'subpage');

$strunstealth = get_string('unstealth', 'subpage');

}

$coursecontext = get_context_instance(CONTEXT_COURSE, $subpage->get_course()->id);

get_all_mods($subpage->get_course()->id, $mods, $modnames, $modnamesplural, $modnamesused);

foreach ($mods as $modid => $unused) {

if (!isset($modinfo->cms[$modid])) {

rebuild_course_cache($subpage->get_course()->id);

$modinfo =& get_fast_modinfo($subpage->get_course());

debugging('Rebuilding course cache', DEBUG_DEVELOPER);

break;

}

}

$lastpageorder = $subpage->get_last_section_pageorder();

if ($subpage->get_course()->format == 'weeks') {

$content .= html_writer::start_tag('ul', array('class' => 'weeks'));

} else {

$content .= html_writer::start_tag('ul', array('class' => 'topics'));

}

foreach ($sections as $section) {

// Check to see whether cms within the section are visible or not

// If all cms are not visible then we don't show the section at all,

// unless editing

$visible = false;

if ($section->sequence) {

// get cm_info for this resources

$instances = explode(',', $section->sequence);

} else {

$instances = array();

}

foreach ($instances as $instance) {

$cm = $modinfo->get_cm($instance);

// check to see whether cm is visible

if ($cm->uservisible) {

$visible = true;

break;

}

}

// If section is empty so should be hidden, record that in object

$section->autohide = !$visible;

$content .= html_writer::start_tag('li',

array('class' => 'section main clearfix', 'id'=>'section-'.$section->section));

$content .= html_writer::tag('div', ' ', array('class' => 'left side'));

$content .= html_writer::start_tag('div', array('class' => 'right side'));

if ($editing && has_capability('moodle/course:update', $coursecontext)) {

// Show the hide/show eye

if ($section->visible) {

$content .= html_writer::start_tag('a', array(

'href' => 'view.php?id=' . $subpage->get_course_module()->id .

'&hide=' . $section->section . '&sesskey=' . sesskey() .

'#section-'.$section->id,

'title'=> $strhide));

$content .= html_writer::empty_tag('img', array(

'src' => $OUTPUT->pix_url('i/hide'), 'class'=>'icon hide',

'alt'=>$strhide));

$content .= html_writer::end_tag('a');

} else {

$content .= html_writer::start_tag('a', array(

'href' => 'view.php?id=' . $subpage->get_course_module()->id .

'&show=' . $section->section . '&sesskey=' . sesskey() .

'#section-' . $section->id,

'title'=> $strshow));

$content .= html_writer::empty_tag('img', array(

'src' => $OUTPUT->pix_url('i/show'), 'class'=>'icon show',

'alt'=>$strshow));

$content .= html_writer::end_tag('a');

}

// Show the stealth/unstealth section link

if ($section->stealth) {

$content .= html_writer::start_tag('form',

array('method' => 'post', 'action' => 'stealth.php'));

$content .= html_writer::start_tag('div');

$content .= html_writer::empty_tag('input',

array('name' => 'id', 'value' => $subpage->get_course_module()->id,

'type' => 'hidden'));

$content .= html_writer::empty_tag('input',

array('name' => 'sesskey', 'value' => sesskey(), 'type' => 'hidden'));

$content .= html_writer::empty_tag('input',

array('name' => 'unstealth', 'value' => $section->id,

'type' => 'hidden'));

$content .= html_writer::empty_tag('input',

array('name' => 'icon',

'src' => $OUTPUT->pix_url('unstealth', 'mod_subpage'),

'type' => 'image', 'title' => $strunstealth, 'alt' => $strunstealth));

$content .= html_writer::end_tag('div');

$content .= html_writer::end_tag('form');

} else {

$content .= html_writer::start_tag('form',

array('method' => 'post', 'action' => 'stealth.php'));

$content .= html_writer::start_tag('div');

$content .= html_writer::empty_tag('input',

array('name' => 'id', 'value' => $subpage->get_course_module()->id,

'type' => 'hidden'));

$content .= html_writer::empty_tag('input',

array('name' => 'sesskey', 'value' => sesskey(), 'type' => 'hidden'));

$content .= html_writer::empty_tag('input',

array('name' => 'stealth', 'value' => $section->id,

'type' => 'hidden'));

$content .= html_writer::empty_tag('input',

array('name' => 'icon',

'src' => $OUTPUT->pix_url('stealth', 'mod_subpage'),

'type' => 'image', 'title' => $strstealth, 'alt' => $strstealth));

$content .= html_writer::end_tag('div');

$content .= html_writer::end_tag('form');

}

$content .= html_writer::empty_tag('br', array());

if ($movesection) {

$content .= html_writer::start_tag('span', array(

'class' => 'section_move_commands'));

if ($section->pageorder > 1) {

// Add a arrow to move section up

$content .= html_writer::start_tag('a', array(

'href' => 'view.php?id=' . $subpage->get_course_module()->id .

'&random=' . rand(1, 10000) . '&section=' . $section->id .

'&move=-1&sesskey=' . sesskey() .

'#section-' . ($section->id-1),

'title'=> $strmoveup));

$content .= html_writer::empty_tag('img', array(

'src' => $OUTPUT->pix_url('t/up'), 'class'=>'icon up',

'alt'=>$strmoveup));

$content .= html_writer::end_tag('a');

$content .= html_writer::empty_tag('br', array());

}

if ($section->pageorder < $lastpageorder) {

// Add an arrow to move section down

$content .= html_writer::start_tag('a', array(

'href' => 'view.php?id=' . $subpage->get_course_module()->id .

'&random=' . rand(1, 10000) . '&section=' . $section->id .

'&move=1&sesskey=' . sesskey() . '#section-'.($section->id+1),

'title'=> $strmovedown));

$content .= html_writer::empty_tag('img', array(

'src' => $OUTPUT->pix_url('t/down'), 'class'=>'icon down',

'alt'=>$strmovedown));

$content .= html_writer::end_tag('a');

$content .= html_writer::empty_tag('br', array());

}

$content .= html_writer::end_tag('span');

}

}

$content .= html_writer::end_tag('div');

$content .= html_writer::start_tag('div', array('class' => 'content'));

// Only show the section if visible and not stealthed or to users with permission

if ((($section->visible && !$section->stealth) ||

has_capability('moodle/course:viewhiddensections', $coursecontext)) &&

($editing || !$section->autohide)) {

if ($section->stealth) {

$content .= html_writer::start_tag('div', array('class' => 'stealthed'));

}

if (!empty($section->name)) {

$content .= html_writer::tag('h3', format_string($section->name),

array('class' => 'sectionname'));

}

$summary = '';

if ($section->summary) {

$summarytext = file_rewrite_pluginfile_urls($section->summary,

'pluginfile.php', $coursecontext->id, 'course',

'section', $section->id);

$summaryformatoptions = new stdClass();

$summaryformatoptions->noclean = true;

$summaryformatoptions->overflowdiv = true;

$summary .= format_text($summarytext, $section->summaryformat,

$summaryformatoptions);

}

if ($editing && has_capability('moodle/course:update', $coursecontext)) {

$summary .= html_writer::start_tag('a', array(

'href' => $CFG->wwwroot . '/course/editsection.php?id=' .

$section->id . '&returnurl=' . urlencode($CFG->wwwroot .

'/mod/subpage/view.php?id=' . $subpage->get_course_module()->id .

'&recache=1&sesskey=' . sesskey()),

'title'=> $streditsummary));

$summary .= html_writer::empty_tag('img', array(

'src' => $OUTPUT->pix_url('t/edit'), 'class'=>'icon edit',

'alt'=>$streditsummary));

$summary .= html_writer::end_tag('a');

$summary .= html_writer::empty_tag('br', array());

$summary .= html_writer::start_tag('a', array(

'href' => $CFG->wwwroot . '/mod/subpage/view.php?id=' .

$subpage->get_course_module()->id . '&delete=' .

$section->id . '&sesskey=' . sesskey(),

'title'=> $strdelete));

if (empty($section->sequence)) {

$summary .= html_writer::empty_tag('img', array(

'src' => $OUTPUT->pix_url('t/delete'), 'class'=>'icon delete',

'alt'=>$strdelete));

}

$summary .= html_writer::end_tag('a');

$summary .= html_writer::empty_tag('br', array());

$summary .= html_writer::empty_tag('br', array());

}

if ($summary !== '') {

$content .= html_writer::tag('div', $summary, array('class' => 'summary'));

}

$content .= $this->render_section($subpage, $modinfo, $section,

$editing, $moveitem, $mods, $modnamesused);

if ($editing) {

$content .= print_section_add_menus($subpage->get_course(),

$section->section, $modnames, false, true);

if (!empty($CFG->enablecourseajax) and $PAGE->theme->enablecourseajax) {

// hacky way to add list to empty section to allow drag/drop into

// empty sections

$content = str_replace('</div><div class="section_add_menus">',

'</div><ul class="section img-text"><li></li></ul>' .

'<div class="section_add_menus">' , $content);

}

}

//now add returnto links to editing links:

$pattern = '/mod.php\?[A-Za-z0-9-&;=%:\/\-.]+/';

$content = preg_replace_callback($pattern,

'mod_subpage_renderer::subpage_url_regex', $content);

if ($section->stealth) {

$content .= html_writer::end_tag('div');

}

}

$content .= html_writer::end_tag('div'); //end of div class=content

$content .= html_writer::end_tag('li');

}

$content .= html_writer::end_tag('ul');

if ($editing) {

$content .= $this->render_add_button($subpage);

$content .= $this->render_bulkmove_buttons($subpage);

}

return $content;

}

/**

* helper function to add returnurl to strings.

* @param $matches

* @return string

*/

protected function subpage_url_regex($matches) {

global $CFG;

if (strpos($matches[0], 'returnurl')=== false) {

return $matches[0] . "&amp;returnurl=" . $CFG->wwwroot . '/mod/subpage/view.php?id=' .

$this->subpagecm;

} else {

return $matches[0];

}

}

/**

* Display intro section.

* @param mod_subpage $subpage Module object

* @return string Intro HTML or '' if none

*/

public function render_intro(mod_subpage $subpage) {

// Don't output anything if no text, so we don't get styling around

// something blank

if (!$subpage->has_intro()) {

return '';

}

// Make fake activity object in required format, and use to format

// intro for module with standard function (which handles images etc.)

$activity = (object)array('intro' => $subpage->get_intro(),

'introformat' => $subpage->get_intro_format());

$intro = format_module_intro(

'subpage', $activity, $subpage->get_course_module()->id);

// Box styling appears to be consistent with some other modules

$intro = html_writer::tag('div', $intro, array('class' => 'generalbox box',

'id' => 'intro'));

return $intro;

}

/**

* Displays information about the item currently being moved, and a cancel link

* @param int $cmid coursemodule id

* @return string

*/

public function render_cancel_link($cmid) {

global $USER;

$sesskey = sesskey();

$stractivityclipboard =

strip_tags(get_string('activityclipboard', '', $USER->activitycopyname));

$cancelurl = new moodle_url('view.php', array('cancelcopy' => true, 'id' => $cmid,

'sesskey' => $sesskey));

$cancellink = html_writer::link($cancelurl, get_string('cancel'));

$content = $stractivityclipboard . '&nbsp;&nbsp;(' . $cancellink . ')';

return html_writer::tag('div', $content, array('class' => 'clipboard'));

}

/**

* Render single section

*

* @param

* @return

*/

protected function render_section($subpage, $modinfo, $section, $editing,

$moveitem, $mods, $modnamesused) {

global $CFG;

ob_start();

print_section($subpage->get_course(), $section, $mods, $modnamesused, true);

$content = ob_get_contents();

ob_end_clean(); //end buffering.

$content = str_replace($CFG->wwwroot.'/course/mod.php?copy',

'view.php?id='.$subpage->get_course_module()->id.'&amp;copy', $content);

$content = str_replace("'togglecompletion.php'", "'" . $CFG->wwwroot .

"/course/togglecompletion.php'", $content);

$findcontent = "<input type='hidden' name='completionstate'";

$content = str_replace($findcontent, "<input type='hidden' name='backto' value='" .

$CFG->wwwroot.'/mod/subpage/view.php?id=' . $subpage->get_course_module()->id .

"'/>" . $findcontent, $content);

return $content;

}

/**

* Render add button used to add a new section.

*

* @param

* @return

*/

protected function render_add_button($subpage) {

$addsection = new single_button(new moodle_url('view.php', array(

'id'=>$subpage->get_course_module()->id,

'addsection'=>1,

'sesskey'=>sesskey())),

get_string('addsection', 'mod_subpage'), 'get');

return $this->output->render($addsection);

}

/**

* Render buttons used for bulk move.

*

* @param

* @return

*/

protected function render_bulkmove_buttons($subpage) {

$moveto = new single_button(new moodle_url('move.php', array(

'id'=>$subpage->get_course_module()->id,

'move'=>'to',

'sesskey'=>sesskey())),

get_string('movetopage', 'mod_subpage'), 'get');

$buttons = $this->output->render($moveto);

// can only move from if there are sections with modules

$sections = $subpage->get_sections();

if (!empty($sections)) {

$sequence = '';

foreach ($sections as $section) {

if ($section->sequence !== '') {

$sequence .= ','.$section->sequence;

}

}

if ($sequence !== '') {

$movefrom = new single_button(new moodle_url('move.php', array(

'id'=>$subpage->get_course_module()->id,

'move'=>'from',

'sesskey'=>sesskey())),

get_string('movefrompage', 'mod_subpage'), 'get');

$buttons .= $this->output->render($movefrom);

}

}

return $buttons;

}