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MODIFIED FILE

<?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/>.

/**

* Renderer for use with the course section and all the goodness that falls

* within it.

*

* This renderer should contain methods useful to courses, and categories.

*

* @package moodlecore

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

*/

/**

* The core course renderer

*

* Can be retrieved with the following:

* $renderer = $PAGE->get_renderer('core','course');

*/

class core_course_renderer extends plugin_renderer_base {

const COURSECAT_SHOW_COURSES_NONE = 0; /* do not show courses at all */

const COURSECAT_SHOW_COURSES_COUNT = 5; /* do not show courses but show number of courses next to category name */

const COURSECAT_SHOW_COURSES_COLLAPSED = 10;

const COURSECAT_SHOW_COURSES_AUTO = 15; /* will choose between collapsed and expanded automatically */

const COURSECAT_SHOW_COURSES_EXPANDED = 20;

const COURSECAT_SHOW_COURSES_EXPANDED_WITH_CAT = 30;

const COURSECAT_TYPE_CATEGORY = 0;

const COURSECAT_TYPE_COURSE = 1;

/**

* A cache of strings

* @var stdClass

*/

protected $strings;

/**

* Override the constructor so that we can initialise the string cache

*

* @param moodle_page $page

* @param string $target

*/

public function __construct(moodle_page $page, $target) {

$this->strings = new stdClass;

parent::__construct($page, $target);

$this->add_modchoosertoggle();

}

/**

* Adds the item in course settings navigation to toggle modchooser

*

* Theme can overwrite as an empty function to exclude it (for example if theme does not

* use modchooser at all)

*/

protected function add_modchoosertoggle() {

global $CFG;

// Only needs to be done once per page.

if (!$this->page->requires->should_create_one_time_item_now('core_course_modchoosertoggle')) {

return;

}

if ($this->page->state > moodle_page::STATE_PRINTING_HEADER ||

$this->page->course->id == SITEID ||

!$this->page->user_is_editing() ||

!($context = context_course::instance($this->page->course->id)) ||

!has_capability('moodle/course:manageactivities', $context) ||

!course_ajax_enabled($this->page->course) ||

!($coursenode = $this->page->settingsnav->find('courseadmin', navigation_node::TYPE_COURSE)) ||

!($turneditingnode = $coursenode->get('turneditingonoff'))) {

// Too late, or we are on site page, or we could not find the

// adjacent nodes in course settings menu, or we are not allowed to edit.

return;

}

if ($this->page->url->compare(new moodle_url('/course/view.php'), URL_MATCH_BASE)) {

// We are on the course page, retain the current page params e.g. section.

$modchoosertoggleurl = clone($this->page->url);

} else {

// Edit on the main course page.

$modchoosertoggleurl = new moodle_url('/course/view.php', array('id' => $this->page->course->id,

'return' => $this->page->url->out_as_local_url(false)));

}

$modchoosertoggleurl->param('sesskey', sesskey());

if ($usemodchooser = get_user_preferences('usemodchooser', $CFG->modchooserdefault)) {

$modchoosertogglestring = get_string('modchooserdisable', 'moodle');

$modchoosertoggleurl->param('modchooser', 'off');

} else {

$modchoosertogglestring = get_string('modchooserenable', 'moodle');

$modchoosertoggleurl->param('modchooser', 'on');

}

$modchoosertoggle = navigation_node::create($modchoosertogglestring, $modchoosertoggleurl, navigation_node::TYPE_SETTING, null, 'modchoosertoggle');

// Insert the modchoosertoggle after the settings node 'turneditingonoff' (navigation_node only has function to insert before, so we insert before and then swap).

$coursenode->add_node($modchoosertoggle, 'turneditingonoff');

$turneditingnode->remove();

$coursenode->add_node($turneditingnode, 'modchoosertoggle');

$modchoosertoggle->add_class('modchoosertoggle');

$modchoosertoggle->add_class('visibleifjs');

user_preference_allow_ajax_update('usemodchooser', PARAM_BOOL);

}

/**

* Renders course info box.

*

* @param stdClass|course_in_list $course

* @return string

*/

public function course_info_box(stdClass $course) {

$content = '';

$content .= $this->output->box_start('generalbox info');

$chelper = new coursecat_helper();

$chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_EXPANDED);

$content .= $this->coursecat_coursebox($chelper, $course);

$content .= $this->output->box_end();

return $content;

}

/**

* Renderers a structured array of courses and categories into a nice XHTML tree structure.

*

* @deprecated since 2.5

*

* Please see http://docs.moodle.org/dev/Courses_lists_upgrade_to_2.5

*

* @param array $ignored argument ignored

* @return string

*/

public final function course_category_tree(array $ignored) {

debugging('Function core_course_renderer::course_category_tree() is deprecated, please use frontpage_combo_list()', DEBUG_DEVELOPER);

return $this->frontpage_combo_list();

}

/**

* Renderers a category for use with course_category_tree

*

* @deprecated since 2.5

*

* Please see http://docs.moodle.org/dev/Courses_lists_upgrade_to_2.5

*

* @param array $category

* @param int $depth

* @return string

*/

protected final function course_category_tree_category(stdClass $category, $depth=1) {

debugging('Function core_course_renderer::course_category_tree_category() is deprecated', DEBUG_DEVELOPER);

return '';

}

/**

* Build the HTML for the module chooser javascript popup

*

* @param array $modules A set of modules as returned form @see

* get_module_metadata

* @param object $course The course that will be displayed

* @return string The composed HTML for the module

*/

public function course_modchooser($modules, $course) {

if (!$this->page->requires->should_create_one_time_item_now('core_course_modchooser')) {

return '';

}

// Add the module chooser

$this->page->requires->yui_module('moodle-course-modchooser',

'M.course.init_chooser',

array(array('courseid' => $course->id, 'closeButtonTitle' => get_string('close', 'editor')))

);

$this->page->requires->strings_for_js(array(

'addresourceoractivity',

'modchooserenable',

'modchooserdisable',

), 'moodle');

// Add the header

$header = html_writer::tag('div', get_string('addresourceoractivity', 'moodle'),

array('class' => 'hd choosertitle'));

$formcontent = html_writer::start_tag('form', array('action' => new moodle_url('/course/jumpto.php'),

'id' => 'chooserform', 'method' => 'post'));

$formcontent .= html_writer::start_tag('div', array('id' => 'typeformdiv'));

$formcontent .= html_writer::tag('input', '', array('type' => 'hidden', 'id' => 'course',

'name' => 'course', 'value' => $course->id));

$formcontent .= html_writer::tag('input', '', array('type' => 'hidden', 'name' => 'sesskey',

'value' => sesskey()));

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

// Put everything into one tag 'options'

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

$formcontent .= html_writer::tag('div', get_string('selectmoduletoviewhelp', 'moodle'),

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

// Put all options into one tag 'alloptions' to allow us to handle scrolling

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

// Activities

$activities = array_filter($modules, create_function('$mod', 'return ($mod->archetype !== MOD_ARCHETYPE_RESOURCE && $mod->archetype !== MOD_ARCHETYPE_SYSTEM);'));

if (count($activities)) {

$formcontent .= $this->course_modchooser_title('activities');

$formcontent .= $this->course_modchooser_module_types($activities);

}

// Resources

$resources = array_filter($modules, create_function('$mod', 'return ($mod->archetype === MOD_ARCHETYPE_RESOURCE);'));

if (count($resources)) {

$formcontent .= $this->course_modchooser_title('resources');

$formcontent .= $this->course_modchooser_module_types($resources);

}

$formcontent .= html_writer::end_tag('div'); // modoptions

$formcontent .= html_writer::end_tag('div'); // types

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

$formcontent .= html_writer::tag('input', '',

array('type' => 'submit', 'name' => 'submitbutton', 'class' => 'submitbutton', 'value' => get_string('add')));

$formcontent .= html_writer::tag('input', '',

array('type' => 'submit', 'name' => 'addcancel', 'class' => 'addcancel', 'value' => get_string('cancel')));

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

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

// Wrap the whole form in a div

$formcontent = html_writer::tag('div', $formcontent, array('id' => 'chooseform'));

// Put all of the content together

$content = $formcontent;

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

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

}

/**

* Build the HTML for a specified set of modules

*

* @param array $modules A set of modules as used by the

* course_modchooser_module function

* @return string The composed HTML for the module

*/

protected function course_modchooser_module_types($modules) {

$return = '';

foreach ($modules as $module) {

if (!isset($module->types)) {

$return .= $this->course_modchooser_module($module);

} else {

$return .= $this->course_modchooser_module($module, array('nonoption'));

foreach ($module->types as $type) {

$return .= $this->course_modchooser_module($type, array('option', 'subtype'));

}

return $return;

}

/**

* Return the HTML for the specified module adding any required classes

*

* @param object $module An object containing the title, and link. An

* icon, and help text may optionally be specified. If the module

* contains subtypes in the types option, then these will also be

* displayed.

* @param array $classes Additional classes to add to the encompassing

* div element

* @return string The composed HTML for the module

*/

protected function course_modchooser_module($module, $classes = array('option')) {

$output = '';

$output .= html_writer::start_tag('div', array('class' => implode(' ', $classes)));

$output .= html_writer::start_tag('label', array('for' => 'module_' . $module->name));

if (!isset($module->types)) {

$output .= html_writer::tag('input', '', array('type' => 'radio',

'name' => 'jumplink', 'id' => 'module_' . $module->name, 'value' => $module->link));

}

$output .= html_writer::start_tag('span', array('class' => 'modicon'));

if (isset($module->icon)) {

// Add an icon if we have one

$output .= $module->icon;

}

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

$output .= html_writer::tag('span', $module->title, array('class' => 'typename'));

if (!isset($module->help)) {

// Add help if found

$module->help = get_string('nohelpforactivityorresource', 'moodle');

}

// Format the help text using markdown with the following options

$options = new stdClass();

$options->trusted = false;

$options->noclean = false;

$options->smiley = false;

$options->filter = false;

$options->para = true;

$options->newlines = false;

$options->overflowdiv = false;

$module->help = format_text($module->help, FORMAT_MARKDOWN, $options);

$output .= html_writer::tag('span', $module->help, array('class' => 'typesummary'));

$output .= html_writer::end_tag('label');

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

return $output;

}

protected function course_modchooser_title($title, $identifier = null) {

$module = new stdClass();

$module->name = $title;

$module->types = array();

$module->title = get_string($title, $identifier);

$module->help = '';

return $this->course_modchooser_module($module, array('moduletypetitle'));

}

/**

* Renders HTML for displaying the sequence of course module editing buttons

*

* @see course_get_cm_edit_actions()

*

* @param action_link[] $actions Array of action_link objects

* @param cm_info $mod The module we are displaying actions for.

* @param array $displayoptions additional display options:

* ownerselector => A JS/CSS selector that can be used to find an cm node.

* If specified the owning node will be given the class 'action-menu-shown' when the action

* menu is being displayed.

* constraintselector => A JS/CSS selector that can be used to find the parent node for which to constrain

* the action menu to when it is being displayed.

* donotenhance => If set to true the action menu that gets displayed won't be enhanced by JS.

* @return string

*/

public function course_section_cm_edit_actions($actions, cm_info $mod = null, $displayoptions = array()) {

global $CFG;

if (empty($actions)) {

return '';

}

if (isset($displayoptions['ownerselector'])) {

$ownerselector = $displayoptions['ownerselector'];

} else if ($mod) {

$ownerselector = '#module-'.$mod->id;

} else {

debugging('You should upgrade your call to '.__FUNCTION__.' and provide $mod', DEBUG_DEVELOPER);

$ownerselector = 'li.activity';

}

if (isset($displayoptions['constraintselector'])) {

$constraint = $displayoptions['constraintselector'];

} else {

$constraint = '.course-content';

}

$menu = new action_menu();

$menu->set_owner_selector($ownerselector);

$menu->set_constraint($constraint);

$menu->set_alignment(action_menu::TR, action_menu::BR);

$menu->set_menu_trigger(get_string('edit'));

if (isset($CFG->modeditingmenu) && !$CFG->modeditingmenu || !empty($displayoptions['donotenhance'])) {

$menu->do_not_enhance();

// Swap the left/right icons.

// Normally we have have right, then left but this does not

// make sense when modactionmenu is disabled.

$moveright = null;

$_actions = array();

foreach ($actions as $key => $value) {

if ($key === 'moveright') {

// Save moveright for later.

$moveright = $value;

} else if ($moveright) {

// This assumes that the order was moveright, moveleft.

// If we have a moveright, then we should place it immediately after the current value.

$_actions[$key] = $value;

$_actions['moveright'] = $moveright;

// Clear the value to prevent it being used multiple times.

$moveright = null;

} else {

$_actions[$key] = $value;

}

$actions = $_actions;

unset($_actions);

}

foreach ($actions as $action) {

if ($action instanceof action_menu_link) {

$action->add_class('cm-edit-action');

}

$menu->add($action);

}

$menu->attributes['class'] .= ' section-cm-edit-actions commands';

// Prioritise the menu ahead of all other actions.

$menu->prioritise = true;

return $this->render($menu);

}

/**

* Renders HTML for the menus to add activities and resources to the current course

*

* Note, if theme overwrites this function and it does not use modchooser,

* see also {@link core_course_renderer::add_modchoosertoggle()}

*

* @param stdClass $course

* @param int $section relative section number (field course_sections.section)

* @param int $sectionreturn The section to link back to

* @param array $displayoptions additional display options, for example blocks add

* option 'inblock' => true, suggesting to display controls vertically

* @return string

*/

function course_section_add_cm_control($course, $section, $sectionreturn = null, $displayoptions = array()) {

global $CFG;

$vertical = !empty($displayoptions['inblock']);

// check to see if user can add menus and there are modules to add

if (!has_capability('moodle/course:manageactivities', context_course::instance($course->id))

|| !$this->page->user_is_editing()

|| !($modnames = get_module_types_names()) || empty($modnames)) {

return '';

}

// Retrieve all modules with associated metadata

$modules = get_module_metadata($course, $modnames, $sectionreturn);

$urlparams = array('section' => $section);

// We'll sort resources and activities into two lists

$activities = array(MOD_CLASS_ACTIVITY => array(), MOD_CLASS_RESOURCE => array());

foreach ($modules as $module) {

if (isset($module->types)) {

// This module has a subtype

// NOTE: this is legacy stuff, module subtypes are very strongly discouraged!!

$subtypes = array();

foreach ($module->types as $subtype) {

$link = $subtype->link->out(true, $urlparams);

$subtypes[$link] = $subtype->title;

}

// Sort module subtypes into the list

$activityclass = MOD_CLASS_ACTIVITY;

if ($module->archetype == MOD_CLASS_RESOURCE) {

$activityclass = MOD_CLASS_RESOURCE;

}

if (!empty($module->title)) {

// This grouping has a name

$activities[$activityclass][] = array($module->title => $subtypes);

} else {

// This grouping does not have a name

$activities[$activityclass] = array_merge($activities[$activityclass], $subtypes);

}

} else {

// This module has no subtypes

$activityclass = MOD_CLASS_ACTIVITY;

if ($module->archetype == MOD_ARCHETYPE_RESOURCE) {

$activityclass = MOD_CLASS_RESOURCE;

} else if ($module->archetype === MOD_ARCHETYPE_SYSTEM) {

// System modules cannot be added by user, do not add to dropdown

continue;

}

$link = $module->link->out(true, $urlparams);

$activities[$activityclass][$link] = $module->title;

}

$straddactivity = get_string('addactivity');

$straddresource = get_string('addresource');

$sectionname = get_section_name($course, $section);

$strresourcelabel = get_string('addresourcetosection', null, $sectionname);

$stractivitylabel = get_string('addactivitytosection', null, $sectionname);

$output = html_writer::start_tag('div', array('class' => 'section_add_menus', 'id' => 'add_menus-section-' . $section));

if (!$vertical) {

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

}

if (!empty($activities[MOD_CLASS_RESOURCE])) {

$select = new url_select($activities[MOD_CLASS_RESOURCE], '', array(''=>$straddresource), "ressection$section");

$select->set_help_icon('resources');

$select->set_label($strresourcelabel, array('class' => 'accesshide'));

$output .= $this->output->render($select);

}

if (!empty($activities[MOD_CLASS_ACTIVITY])) {

$select = new url_select($activities[MOD_CLASS_ACTIVITY], '', array(''=>$straddactivity), "section$section");

$select->set_help_icon('activities');

$select->set_label($stractivitylabel, array('class' => 'accesshide'));

$output .= $this->output->render($select);

}

if (!$vertical) {

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

}

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

if (course_ajax_enabled($course) && $course->id == $this->page->course->id) {

// modchooser can be added only for the current course set on the page!

$straddeither = get_string('addresourceoractivity');

// The module chooser link

$modchooser = html_writer::start_tag('div', array('class' => 'mdl-right'));

$modchooser.= html_writer::start_tag('div', array('class' => 'section-modchooser'));

$icon = $this->output->pix_icon('t/add', '');

$span = html_writer::tag('span', $straddeither, array('class' => 'section-modchooser-text'));

$modchooser .= html_writer::tag('span', $icon . $span, array('class' => 'section-modchooser-link'));

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

// Wrap the normal output in a noscript div

$usemodchooser = get_user_preferences('usemodchooser', $CFG->modchooserdefault);

if ($usemodchooser) {

$output = html_writer::tag('div', $output, array('class' => 'hiddenifjs addresourcedropdown'));

$modchooser = html_writer::tag('div', $modchooser, array('class' => 'visibleifjs addresourcemodchooser'));

} else {

// If the module chooser is disabled, we need to ensure that the dropdowns are shown even if javascript is disabled

$output = html_writer::tag('div', $output, array('class' => 'show addresourcedropdown'));

$modchooser = html_writer::tag('div', $modchooser, array('class' => 'hide addresourcemodchooser'));

}

$output = $this->course_modchooser($modules, $course) . $modchooser . $output;

}

return $output;

}

/**

* Renders html to display a course search form

*

* @param string $value default value to populate the search field

* @param string $format display format - 'plain' (default), 'short' or 'navbar'

* @return string

*/

function course_search_form($value = '', $format = 'plain') {

static $count = 0;

$formid = 'coursesearch';

if ((++$count) > 1) {

$formid .= $count;

}

switch ($format) {

case 'navbar' :

$formid = 'coursesearchnavbar';

$inputid = 'navsearchbox';

$inputsize = 20;

break;

case 'short' :

$inputid = 'shortsearchbox';

$inputsize = 12;

break;

default :

$inputid = 'coursesearchbox';

$inputsize = 30;

}

$strsearchcourses= get_string("searchcourses");

$searchurl = new moodle_url('/course/search.php');

$output = html_writer::start_tag('form', array('id' => $formid, 'action' => $searchurl, 'method' => 'get'));

$output .= html_writer::start_tag('fieldset', array('class' => 'coursesearchbox invisiblefieldset'));

$output .= html_writer::tag('label', $strsearchcourses.': ', array('for' => $inputid));

$output .= html_writer::empty_tag('input', array('type' => 'text', 'id' => $inputid,

'size' => $inputsize, 'name' => 'search', 'value' => s($value)));

$output .= html_writer::empty_tag('input', array('type' => 'submit',

'value' => get_string('go')));

$output .= html_writer::end_tag('fieldset');

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

return $output;

}

/**

* Renders html for completion box on course page

*

* If completion is disabled, returns empty string

* If completion is automatic, returns an icon of the current completion state

* If completion is manual, returns a form (with an icon inside) that allows user to

* toggle completion

*

* @param stdClass $course course object

* @param completion_info $completioninfo completion info for the course, it is recommended

* to fetch once for all modules in course/section for performance

* @param cm_info $mod module to show completion for

* @param array $displayoptions display options, not used in core

* @return string

*/

public function course_section_cm_completion($course, &$completioninfo, cm_info $mod, $displayoptions = array()) {

global $CFG;

$output = '';

if (!empty($displayoptions['hidecompletion']) || !isloggedin() || isguestuser() || !$mod->uservisible) {

return $output;

}

if ($completioninfo === null) {

$completioninfo = new completion_info($course);

}

$completion = $completioninfo->is_enabled($mod);

if ($completion == COMPLETION_TRACKING_NONE) {

if ($this->page->user_is_editing()) {

$output .= html_writer::span(' ', 'filler');

}

return $output;

}

$completiondata = $completioninfo->get_data($mod, true);

$completionicon = '';

if ($this->page->user_is_editing()) {

switch ($completion) {

case COMPLETION_TRACKING_MANUAL :

$completionicon = 'manual-enabled'; break;

case COMPLETION_TRACKING_AUTOMATIC :

$completionicon = 'auto-enabled'; break;

}

} else if ($completion == COMPLETION_TRACKING_MANUAL) {

switch($completiondata->completionstate) {

case COMPLETION_INCOMPLETE:

$completionicon = 'manual-n'; break;

case COMPLETION_COMPLETE:

$completionicon = 'manual-y'; break;

}

} else { // Automatic

switch($completiondata->completionstate) {

case COMPLETION_INCOMPLETE:

$completionicon = 'auto-n'; break;

case COMPLETION_COMPLETE:

$completionicon = 'auto-y'; break;

case COMPLETION_COMPLETE_PASS:

$completionicon = 'auto-pass'; break;

case COMPLETION_COMPLETE_FAIL:

$completionicon = 'auto-fail'; break;

}

if ($completionicon) {

$formattedname = $mod->get_formatted_name();

$imgalt = get_string('completion-alt-' . $completionicon, 'completion', $formattedname);

if ($this->page->user_is_editing()) {

// When editing, the icon is just an image.

$completionpixicon = new pix_icon('i/completion-'.$completionicon, $imgalt, '',

array('title' => $imgalt, 'class' => 'iconsmall'));

$output .= html_writer::tag('span', $this->output->render($completionpixicon),

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

} else if ($completion == COMPLETION_TRACKING_MANUAL) {

$imgtitle = get_string('completion-title-' . $completionicon, 'completion', $formattedname);

$newstate =

$completiondata->completionstate == COMPLETION_COMPLETE

? COMPLETION_INCOMPLETE

: COMPLETION_COMPLETE;

// In manual mode the icon is a toggle form...

// If this completion state is used by the

// conditional activities system, we need to turn

// off the JS.

$extraclass = '';

if (!empty($CFG->enableavailability) &&

core_availability\info::completion_value_used($course, $mod->id)) {

$extraclass = ' preventjs';

}

$output .= html_writer::start_tag('form', array('method' => 'post',

'action' => new moodle_url('/course/togglecompletion.php'),

'class' => 'togglecompletion'. $extraclass));

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

$output .= html_writer::empty_tag('input', array(

'type' => 'hidden', 'name' => 'id', 'value' => $mod->id));

$output .= html_writer::empty_tag('input', array(

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

$output .= html_writer::empty_tag('input', array(

'type' => 'hidden', 'name' => 'modulename', 'value' => $mod->name));

$output .= html_writer::empty_tag('input', array(

'type' => 'hidden', 'name' => 'completionstate', 'value' => $newstate));

$output .= html_writer::empty_tag('input', array(

'type' => 'image',

'src' => $this->output->pix_url('i/completion-'.$completionicon),

'alt' => $imgalt, 'title' => $imgtitle,

'aria-live' => 'polite'));

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

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

} else {

// In auto mode, the icon is just an image.

$completionpixicon = new pix_icon('i/completion-'.$completionicon, $imgalt, '',

array('title' => $imgalt));

$output .= html_writer::tag('span', $this->output->render($completionpixicon),

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

}

return $output;

}

/**

* Checks if course module has any conditions that may make it unavailable for

* all or some of the students

*

* This function is internal and is only used to create CSS classes for the module name/text

*

* @param cm_info $mod

* @return bool

*/

protected function is_cm_conditionally_hidden(cm_info $mod) {

global $CFG;

$conditionalhidden = false;

if (!empty($CFG->enableavailability)) {

$info = new \core_availability\info_module($mod);

$conditionalhidden = !$info->is_available_for_all();

}

return $conditionalhidden;

}

/**

* Renders html to display a name with the link to the course module on a course page

*

* If module is unavailable for user but still needs to be displayed

* in the list, just the name is returned without a link

*

* Note, that for course modules that never have separate pages (i.e. labels)

* this function return an empty string

*

* @param cm_info $mod

* @param array $displayoptions

* @return string

*/

public function course_section_cm_name(cm_info $mod, $displayoptions = array()) {

$output = '';

if (!$mod->uservisible && empty($mod->availableinfo)) {

// nothing to be displayed to the user

return $output;

}

$url = $mod->url;

if (!$url) {

return $output;

}

//Accessibility: for files get description via icon, this is very ugly hack!

$instancename = $mod->get_formatted_name();

$altname = $mod->modfullname;

// Avoid unnecessary duplication: if e.g. a forum name already

// includes the word forum (or Forum, etc) then it is unhelpful

// to include that in the accessible description that is added.

if (false !== strpos(core_text::strtolower($instancename),

core_text::strtolower($altname))) {

$altname = '';

}

// File type after name, for alphabetic lists (screen reader).

if ($altname) {

$altname = get_accesshide(' '.$altname);

}

// For items which are hidden but available to current user

// ($mod->uservisible), we show those as dimmed only if the user has

// viewhiddenactivities, so that teachers see 'items which might not

// be available to some students' dimmed but students do not see 'item

// which is actually available to current student' dimmed.

$linkclasses = '';

$accesstext = '';

$textclasses = '';

if ($mod->uservisible) {

$conditionalhidden = $this->is_cm_conditionally_hidden($mod);

$accessiblebutdim = (!$mod->visible || $conditionalhidden) &&

has_capability('moodle/course:viewhiddenactivities', $mod->context);

if ($accessiblebutdim) {

$linkclasses .= ' dimmed';

$textclasses .= ' dimmed_text';

if ($conditionalhidden) {

$linkclasses .= ' conditionalhidden';

$textclasses .= ' conditionalhidden';

}

// Show accessibility note only if user can access the module himself.

$accesstext = get_accesshide(get_string('hiddenfromstudents').':'. $mod->modfullname);

}

} else {

$linkclasses .= ' dimmed';

$textclasses .= ' dimmed_text';

}

// Get on-click attribute value if specified and decode the onclick - it

// has already been encoded for display (puke).

$onclick = htmlspecialchars_decode($mod->onclick, ENT_QUOTES);

$groupinglabel = $mod->get_grouping_label($textclasses);

// Display link itself.

$activitylink = html_writer::empty_tag('img', array('src' => $mod->get_icon_url(),

'class' => 'iconlarge activityicon', 'alt' => ' ', 'role' => 'presentation')) . $accesstext .

html_writer::tag('span', $instancename . $altname, array('class' => 'instancename'));

$filename = $url;

if ($mod->uservisible) {

/* Start of Frankie code */

//print_object($activitylink);

if (

(strpos($activitylink,'writer-24') !== false) ||

(strpos($activitylink,'calc-24') !== false) ||

(strpos($activitylink,'impress-24') !== false)

)

{

$url = str_replace("/m30/","/m30/ViewerJS/#../", $url);

$output .= html_writer::link($url, $activitylink, array(/*'title'=>'Click text to pop-up PDF',*/'rel' => 'shadowbox[Mixed]'/*,'onclick' => $onclick*/)) .

$groupinglabel;

/*

$output .= html_writer::link($url, $activitylink,

array('data-fancybox-type' => 'iframe', 'class' => 'fancybox', 'onclick' => $onclick)) .

$groupinglabel;

*/

}

else

if (strpos($activitylink,'pdf-24') !== false)

{

/*$browser = $_SERVER['HTTP_USER_AGENT'];

$chrome = '/Chrome/';

$firefox = '/Firefox/';

$ie = '/MSIE/';

if (preg_match($firefox, $browser))

*/

if (core_useragent::is_chrome())

{

/*This code replaces this: http://cefl4u.org/teach/pdf.js-gh-pages/web/viewer.html?file=http://cefl4u.org/teach/mod/resource/view.php%3Fid=44

with this: http://cefl4u.org/teach/pdf.js-gh-pages/web/viewer.html?file=http%3A%2F%2Fcefl4u%2Eorg%2Fteach%2Fmod%2Fresource%2Fview%2Ephp%3Fid%3D44

%3A : Colon

%2F / Solidus (slash)

%2E . Period (fullstop)

%3D = Equals sign

%3F ? Question mark

*/

global $CFG;

$newurl = str_replace(':','%3A', $url);

$newurl = str_replace('/','%2F', $newurl);

$newurl = str_replace('.','%2E', $newurl);

$newurl = str_replace('?','%3F', $newurl);

$newurl = str_replace('=','%3D', $newurl);

$newurl = $CFG->wwwroot.'/pdf.js-gh-pages/web/viewer.html?file='.$newurl;

$activitylink = html_writer::empty_tag('img', array('src' => $mod->get_icon_url(),

'class' => 'iconlarge activityicon', 'alt' => ' ', 'role' => 'presentation'));

//So hard to just add the word download but here it is!

//$output .= str_replace('=""','',html_writer::link($url, $activitylink, str_replace('=""','',array('download'=>'','title'=>'Click icon to download'))));

$output .= str_replace('=""','',html_writer::link($url, $activitylink, array('download'=>'','title'=>'Click icon to download')));

$instancename = html_writer::start_span('instancename').$instancename.

html_writer::start_span('accesshide ').'File'.

html_writer::end_span().

html_writer::end_span();

//ShadowBox

$output .= html_writer::link($newurl, $instancename, array('title'=>'Click text to pop-up PDF','rel' => 'shadowbox[Mixed]','onclick' => $onclick)) .

$groupinglabel;

} else

if (core_useragent::is_firefox()) {

global $CFG;

$newurl = str_replace(':','%3A', $url);

$newurl = str_replace('/','%2F', $newurl);

$newurl = str_replace('.','%2E', $newurl);

$newurl = str_replace('?','%3F', $newurl);

$newurl = str_replace('=','%3D', $newurl);

$newurl = $CFG->wwwroot.'/pdf.js-gh-pages/web/viewer.html?file='.$newurl;

$activitylink = html_writer::empty_tag('img', array('src' => $mod->get_icon_url(),

'class' => 'iconlarge activityicon', 'alt' => ' ', 'role' => 'presentation'));

//So hard to just add the word download but here it is!

//$output .= str_replace('=""','',html_writer::link($url, $activitylink, str_replace('=""','',array('download'=>'','title'=>'Click icon to download'))));

$output .= str_replace('=""','',html_writer::link($url, $activitylink, array('download'=>'','title'=>'Right-click icon to download')));

$instancename = html_writer::start_span('instancename').$instancename.

html_writer::start_span('accesshide ').'File'.

html_writer::end_span().

html_writer::end_span();

//ShadowBox

$output .= html_writer::link($newurl, $instancename, array('title'=>'Click text to pop-up PDF','rel' => 'shadowbox[Mixed]'/*,'onclick' => $onclick*/)) .

$groupinglabel;

}

else if (core_useragent::is_safari_ios())

{

global $CFG;

$newurl = str_replace(':','%3A', $url);

$newurl = str_replace('/','%2F', $newurl);

$newurl = str_replace('.','%2E', $newurl);

$newurl = str_replace('?','%3F', $newurl);

$newurl = str_replace('=','%3D', $newurl);

$newurl = $CFG->wwwroot.'/pdf.js-gh-pages/web/viewer.html?file='.$newurl;

//ShadowBox

$output .= html_writer::link($newurl, $activitylink, array('title'=>'Click text to

pop-up PDF', 'rel' => 'shadowbox[Mixed]','onclick' => $onclick)) .

$groupinglabel;

}

else if(core_useragent::is_ie())

{ /* Opera, and ALL others!!! */

global $CFG;

$newurl = str_replace(':','%3A', $url);

$newurl = str_replace('/','%2F', $newurl);

$newurl = str_replace('.','%2E', $newurl);

$newurl = str_replace('?','%3F', $newurl);

$newurl = str_replace('=','%3D', $newurl);

$newurl = $CFG->wwwroot.'/pdf.js-gh-pages/web/viewer.html?file='.$newurl;

//ShadowBox

$output .= html_writer::link($newurl, $activitylink, array('title'=>'Click text to pop-up PDF','rel' => 'shadowbox[Mixed]','onclick' => $onclick)).

$groupinglabel;

}

else

{ /* Opera, and ALL others!!! */

global $CFG;

$newurl = str_replace(':','%3A', $url);

$newurl = str_replace('/','%2F', $newurl);

$newurl = str_replace('.','%2E', $newurl);

$newurl = str_replace('?','%3F', $newurl);

$newurl = str_replace('=','%3D', $newurl);

$newurl = $CFG->wwwroot.'/pdf.js-gh-pages/web/viewer.html?file='.$newurl;

//ShadowBox

$output .= html_writer::link($newurl, $activitylink, array('title'=>'Click text to pop-up PDF','rel' => 'shadowbox[Mixed]','onclick' => $onclick)).

$groupinglabel;

}

else {

$output .= html_writer::link($url, $activitylink, array('class' => $linkclasses, 'onclick' => $onclick)) .

$groupinglabel;

}

/* End of Frankie code */

} else {

// We may be displaying this just in order to show information

// about visibility, without the actual link ($mod->uservisible)

$output .= html_writer::tag('div', $activitylink, array('class' => $textclasses)) .

$groupinglabel;

}

return $output;

}

/* public function course_section_cm_name(cm_info $mod, $displayoptions = array()) {

global $CFG;

$output = '';

if (!$mod->uservisible && empty($mod->availableinfo)) {

// nothing to be displayed to the user

return $output;

}

$url = $mod->url;

if (!$url) {

return $output;

}

//Accessibility: for files get description via icon, this is very ugly hack!

$instancename = $mod->get_formatted_name();

$altname = $mod->modfullname;

// Avoid unnecessary duplication: if e.g. a forum name already

// includes the word forum (or Forum, etc) then it is unhelpful

// to include that in the accessible description that is added.

if (false !== strpos(core_text::strtolower($instancename),

core_text::strtolower($altname))) {

$altname = '';

}

// File type after name, for alphabetic lists (screen reader).

if ($altname) {

$altname = get_accesshide(' '.$altname);

}

// For items which are hidden but available to current user

// ($mod->uservisible), we show those as dimmed only if the user has

// viewhiddenactivities, so that teachers see 'items which might not

// be available to some students' dimmed but students do not see 'item

// which is actually available to current student' dimmed.

$linkclasses = '';

$accesstext = '';

$textclasses = '';

if ($mod->uservisible) {

$conditionalhidden = $this->is_cm_conditionally_hidden($mod);

$accessiblebutdim = (!$mod->visible || $conditionalhidden) &&

has_capability('moodle/course:viewhiddenactivities', $mod->context);

if ($accessiblebutdim) {

$linkclasses .= ' dimmed';

$textclasses .= ' dimmed_text';

if ($conditionalhidden) {

$linkclasses .= ' conditionalhidden';

$textclasses .= ' conditionalhidden';

}

// Show accessibility note only if user can access the module himself.

$accesstext = get_accesshide(get_string('hiddenfromstudents').':'. $mod->modfullname);

}

} else {

$linkclasses .= ' dimmed';

$textclasses .= ' dimmed_text';

}

// Get on-click attribute value if specified and decode the onclick - it

// has already been encoded for display (puke).

$onclick = htmlspecialchars_decode($mod->onclick, ENT_QUOTES);

$groupinglabel = $mod->get_grouping_label($textclasses);

// Display link itself.

$activitylink = html_writer::empty_tag('img', array('src' => $mod->get_icon_url(),

'class' => 'iconlarge activityicon', 'alt' => ' ', 'role' => 'presentation')) . $accesstext .

html_writer::tag('span', $instancename . $altname, array('class' => 'instancename'));

if ($mod->uservisible) {

$output .= html_writer::link($url, $activitylink, array('class' => $linkclasses, 'onclick' => $onclick)) .

$groupinglabel;

} else {

// We may be displaying this just in order to show information

// about visibility, without the actual link ($mod->uservisible)

$output .= html_writer::tag('div', $activitylink, array('class' => $textclasses)) .

$groupinglabel;

}

return $output;

}

*/

/**

* 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->availableinfo)) {

// nothing to be displayed to the user

return $output;

}

$content = $mod->get_formatted_content(array('overflowdiv' => true, 'noclean' => true));

$accesstext = '';

$textclasses = '';

if ($mod->uservisible) {

$conditionalhidden = $this->is_cm_conditionally_hidden($mod);

$accessiblebutdim = (!$mod->visible || $conditionalhidden) &&

has_capability('moodle/course:viewhiddenactivities', $mod->context);

if ($accessiblebutdim) {

$textclasses .= ' dimmed_text';

if ($conditionalhidden) {

$textclasses .= ' conditionalhidden';

}

// Show accessibility note only if user can access the module himself.

$accesstext = get_accesshide(get_string('hiddenfromstudents').':'. $mod->modfullname);

}

} else {

$textclasses .= ' dimmed_text';

}

if ($mod->url) {

if ($content) {

// If specified, display extra content after link.

$output = html_writer::tag('div', $content, array('class' =>

trim('contentafterlink ' . $textclasses)));

}

} else {

$groupinglabel = $mod->get_grouping_label($textclasses);

// No link, so display only content.

$output = html_writer::tag('div', $accesstext . $content . $groupinglabel,

array('class' => 'contentwithoutlink ' . $textclasses));

}

return $output;

}

/**

* Renders HTML to show course module availability information (for someone who isn't allowed

* to see the activity itself, or for staff)

*

* @param cm_info $mod

* @param array $displayoptions

* @return string

*/

public function course_section_cm_availability(cm_info $mod, $displayoptions = array()) {

global $CFG;

if (!$mod->uservisible) {

// this is a student who is not allowed to see the module but might be allowed

// to see availability info (i.e. "Available from ...")

if (!empty($mod->availableinfo)) {

$formattedinfo = \core_availability\info::format_info(

$mod->availableinfo, $mod->get_course());

$output = html_writer::tag('div', $formattedinfo, array('class' => 'availabilityinfo'));

}

return $output;

}

// this is a teacher who is allowed to see module but still should see the

// information that module is not available to all/some students

$modcontext = context_module::instance($mod->id);

$canviewhidden = has_capability('moodle/course:viewhiddenactivities', $modcontext);

if ($canviewhidden && !empty($CFG->enableavailability)) {

// Don't add availability information if user is not editing and activity is hidden.

if ($mod->visible || $this->page->user_is_editing()) {

$hidinfoclass = '';

if (!$mod->visible) {

$hidinfoclass = 'hide';

}

$ci = new \core_availability\info_module($mod);

$fullinfo = $ci->get_full_information();

if ($fullinfo) {

$formattedinfo = \core_availability\info::format_info(

$fullinfo, $mod->get_course());

return html_writer::div($formattedinfo, 'availabilityinfo ' . $hidinfoclass);

}

return '';

}

/**

* Renders HTML to display one course module for display within a section.

*

* This function calls:

* {@link core_course_renderer::course_section_cm()}

*

* @param stdClass $course

* @param completion_info $completioninfo

* @param cm_info $mod

* @param int|null $sectionreturn

* @param array $displayoptions

* @return String

*/

public function course_section_cm_list_item($course, &$completioninfo, cm_info $mod, $sectionreturn, $displayoptions = array()) {

$output = '';

if ($modulehtml = $this->course_section_cm($course, $completioninfo, $mod, $sectionreturn, $displayoptions)) {

$modclasses = 'activity ' . $mod->modname . ' modtype_' . $mod->modname . ' ' . $mod->extraclasses;

$output .= html_writer::tag('li', $modulehtml, array('class' => $modclasses, 'id' => 'module-' . $mod->id));

}

return $output;

}

/**

* Renders HTML to display one course module in a course section

*

* This includes link, content, availability, completion info and additional information

* that module type wants to display (i.e. number of unread forum posts)

*

* This function calls:

* {@link core_course_renderer::course_section_cm_name()}

* {@link core_course_renderer::course_section_cm_text()}

* {@link core_course_renderer::course_section_cm_availability()}

* {@link core_course_renderer::course_section_cm_completion()}

* {@link course_get_cm_edit_actions()}

* {@link core_course_renderer::course_section_cm_edit_actions()}

*

* @param stdClass $course

* @param completion_info $completioninfo

* @param cm_info $mod

* @param int|null $sectionreturn

* @param array $displayoptions

* @return string

*/

public function course_section_cm($course, &$completioninfo, cm_info $mod, $sectionreturn, $displayoptions = array()) {

$output = '';

// We return empty string (because course module will not be displayed at all)

// if:

// 1) The activity is not visible to users

// and

// 2) The 'availableinfo' is empty, i.e. the activity was

// hidden in a way that leaves no info, such as using the

// eye icon.

if (!$mod->uservisible && empty($mod->availableinfo)) {

return $output;

}

$indentclasses = 'mod-indent';

if (!empty($mod->indent)) {

$indentclasses .= ' mod-indent-'.$mod->indent;

if ($mod->indent > 15) {

$indentclasses .= ' mod-indent-huge';

}

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

if ($this->page->user_is_editing()) {

$output .= course_get_cm_move($mod, $sectionreturn);

}

$output .= html_writer::start_tag('div', array('class' => 'mod-indent-outer'));

// This div is used to indent the content.

$output .= html_writer::div('', $indentclasses);

// Start a wrapper for the actual content to keep the indentation consistent

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

// Display the link to the module (or do nothing if module has no url)

$cmname = $this->course_section_cm_name($mod, $displayoptions);

if (!empty($cmname)) {

// Start the div for the activity title, excluding the edit icons.

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

$output .= $cmname;

if ($this->page->user_is_editing()) {

$output .= ' ' . course_get_cm_rename_action($mod, $sectionreturn);

}

// Module can put text after the link (e.g. forum unread)

$output .= $mod->afterlink;

// Closing the tag which contains everything but edit icons. Content part of the module should not be part of this.

$output .= html_writer::end_tag('div'); // .activityinstance

}

// If there is content but NO link (eg label), then display the

// content here (BEFORE any icons). In this case cons must be

// displayed after the content so that it makes more sense visually

// and for accessibility reasons, e.g. if you have a one-line label

// it should work similarly (at least in terms of ordering) to an

// activity.

$contentpart = $this->course_section_cm_text($mod, $displayoptions);

$url = $mod->url;

if (empty($url)) {

$output .= $contentpart;

}

$modicons = '';

if ($this->page->user_is_editing()) {

$editactions = course_get_cm_edit_actions($mod, $mod->indent, $sectionreturn);

$modicons .= ' '. $this->course_section_cm_edit_actions($editactions, $mod, $displayoptions);

$modicons .= $mod->afterediticons;

}

$modicons .= $this->course_section_cm_completion($course, $completioninfo, $mod, $displayoptions);

if (!empty($modicons)) {

$output .= html_writer::span($modicons, 'actions');

}

// If there is content AND a link, then display the content here

// (AFTER any icons). Otherwise it was displayed before

if (!empty($url)) {

$output .= $contentpart;

}

// show availability info (if module is not available)

$output .= $this->course_section_cm_availability($mod, $displayoptions);

$output .= html_writer::end_tag('div'); // $indentclasses

// End of indentation div.

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

return $output;

}

/**

* Renders HTML to display a list of course modules in a course section

* Also displays "move here" controls in Javascript-disabled mode

*

* This function calls {@link core_course_renderer::course_section_cm()}

*

* @param stdClass $course course object

* @param int|stdClass|section_info $section relative section number or section object

* @param int $sectionreturn section number to return to

* @param int $displayoptions

* @return void

*/

public function course_section_cm_list($course, $section, $sectionreturn = null, $displayoptions = array()) {

global $USER;

$output = '';

$modinfo = get_fast_modinfo($course);

if (is_object($section)) {

$section = $modinfo->get_section_info($section->section);

} else {

$section = $modinfo->get_section_info($section);

}

$completioninfo = new completion_info($course);

// check if we are currently in the process of moving a module with JavaScript disabled

$ismoving = $this->page->user_is_editing() && ismoving($course->id);

if ($ismoving) {

$movingpix = new pix_icon('movehere', get_string('movehere'), 'moodle', array('class' => 'movetarget'));

$strmovefull = strip_tags(get_string("movefull", "", "'$USER->activitycopyname'"));

}

// Get the list of modules visible to user (excluding the module being moved if there is one)

$moduleshtml = array();

if (!empty($modinfo->sections[$section->section])) {

foreach ($modinfo->sections[$section->section] as $modnumber) {

$mod = $modinfo->cms[$modnumber];

if ($ismoving and $mod->id == $USER->activitycopy) {

// do not display moving mod

continue;

}

if ($modulehtml = $this->course_section_cm_list_item($course,

$completioninfo, $mod, $sectionreturn, $displayoptions)) {

$moduleshtml[$modnumber] = $modulehtml;

}

$sectionoutput = '';

if (!empty($moduleshtml) || $ismoving) {

foreach ($moduleshtml as $modnumber => $modulehtml) {

if ($ismoving) {

$movingurl = new moodle_url('/course/mod.php', array('moveto' => $modnumber, 'sesskey' => sesskey()));

$sectionoutput .= html_writer::tag('li',

html_writer::link($movingurl, $this->output->render($movingpix), array('title' => $strmovefull)),

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

}

$sectionoutput .= $modulehtml;

}

if ($ismoving) {

$movingurl = new moodle_url('/course/mod.php', array('movetosection' => $section->id, 'sesskey' => sesskey()));

$sectionoutput .= html_writer::tag('li',

html_writer::link($movingurl, $this->output->render($movingpix), array('title' => $strmovefull)),

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

}

// Always output the section module list.

$output .= html_writer::tag('ul', $sectionoutput, array('class' => 'section img-text'));

return $output;

}

/**

* Displays a custom list of courses with paging bar if necessary

*

* If $paginationurl is specified but $totalcount is not, the link 'View more'

* appears under the list.

*

* If both $paginationurl and $totalcount are specified, and $totalcount is

* bigger than count($courses), a paging bar is displayed above and under the

* courses list.

*

* @param array $courses array of course records (or instances of course_in_list) to show on this page

* @param bool $showcategoryname whether to add category name to the course description

* @param string $additionalclasses additional CSS classes to add to the div.courses

* @param moodle_url $paginationurl url to view more or url to form links to the other pages in paging bar

* @param int $totalcount total number of courses on all pages, if omitted $paginationurl will be displayed as 'View more' link

* @param int $page current page number (defaults to 0 referring to the first page)

* @param int $perpage number of records per page (defaults to $CFG->coursesperpage)

* @return string

*/

public function courses_list($courses, $showcategoryname = false, $additionalclasses = null, $paginationurl = null, $totalcount = null, $page = 0, $perpage = null) {

global $CFG;

// create instance of coursecat_helper to pass display options to function rendering courses list

$chelper = new coursecat_helper();

if ($showcategoryname) {

$chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_EXPANDED_WITH_CAT);

} else {

$chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_EXPANDED);

}

if ($totalcount !== null && $paginationurl !== null) {

// add options to display pagination

if ($perpage === null) {

$perpage = $CFG->coursesperpage;

}

$chelper->set_courses_display_options(array(

'limit' => $perpage,

'offset' => ((int)$page) * $perpage,

'paginationurl' => $paginationurl,

));

} else if ($paginationurl !== null) {

// add options to display 'View more' link

$chelper->set_courses_display_options(array('viewmoreurl' => $paginationurl));

$totalcount = count($courses) + 1; // has to be bigger than count($courses) otherwise link will not be displayed

}

$chelper->set_attributes(array('class' => $additionalclasses));

$content = $this->coursecat_courses($chelper, $courses, $totalcount);

return $content;

}

/**

* Displays one course in the list of courses.

*

* This is an internal function, to display an information about just one course

* please use {@link core_course_renderer::course_info_box()}

*

* @param coursecat_helper $chelper various display options

* @param course_in_list|stdClass $course

* @param string $additionalclasses additional classes to add to the main <div> tag (usually

* depend on the course position in list - first/last/even/odd)

* @return string

*/

protected function coursecat_coursebox(coursecat_helper $chelper, $course, $additionalclasses = '') {

global $CFG;

if (!isset($this->strings->summary)) {

$this->strings->summary = get_string('summary');

}

if ($chelper->get_show_courses() <= self::COURSECAT_SHOW_COURSES_COUNT) {

return '';

}

if ($course instanceof stdClass) {

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

$course = new course_in_list($course);

}

$content = '';

$classes = trim('coursebox clearfix '. $additionalclasses);

if ($chelper->get_show_courses() >= self::COURSECAT_SHOW_COURSES_EXPANDED) {

$nametag = 'h3';

} else {

$classes .= ' collapsed';

$nametag = 'div';

}

// .coursebox

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

'class' => $classes,

'data-courseid' => $course->id,

'data-type' => self::COURSECAT_TYPE_COURSE,

));

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

// course name

$coursename = $chelper->get_course_formatted_name($course);

$coursenamelink = html_writer::link(new moodle_url('/course/view.php', array('id' => $course->id)),

$coursename, array('class' => $course->visible ? '' : 'dimmed'));

$content .= html_writer::tag($nametag, $coursenamelink, array('class' => 'coursename'));

// If we display course in collapsed form but the course has summary or course contacts, display the link to the info page.

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

if ($chelper->get_show_courses() < self::COURSECAT_SHOW_COURSES_EXPANDED) {

if ($course->has_summary() || $course->has_course_contacts() || $course->has_course_overviewfiles()) {

$url = new moodle_url('/course/info.php', array('id' => $course->id));

$image = html_writer::empty_tag('img', array('src' => $this->output->pix_url('i/info'),

'alt' => $this->strings->summary));

$content .= html_writer::link($url, $image, array('title' => $this->strings->summary));

// Make sure JS file to expand course content is included.

$this->coursecat_include_js();

}

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

// print enrolmenticons

if ($icons = enrol_get_course_info_icons($course)) {

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

foreach ($icons as $pix_icon) {

$content .= $this->render($pix_icon);

}

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

}

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

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

$content .= $this->coursecat_coursebox_content($chelper, $course);

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

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

return $content;

}

/**

* Returns HTML to display course content (summary, course contacts and optionally category name)

*

* This method is called from coursecat_coursebox() and may be re-used in AJAX

*

* @param coursecat_helper $chelper various display options

* @param stdClass|course_in_list $course

* @return string

*/

protected function coursecat_coursebox_content(coursecat_helper $chelper, $course) {

global $CFG;

if ($chelper->get_show_courses() < self::COURSECAT_SHOW_COURSES_EXPANDED) {

return '';

}

if ($course instanceof stdClass) {

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

$course = new course_in_list($course);

}

$content = '';

// display course summary

if ($course->has_summary()) {

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

$content .= $chelper->get_course_formatted_summary($course,

array('overflowdiv' => true, 'noclean' => true, 'para' => false));

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

}

// display course overview files

$contentimages = $contentfiles = '';

foreach ($course->get_course_overviewfiles() as $file) {

$isimage = $file->is_valid_image();

$url = file_encode_url("$CFG->wwwroot/pluginfile.php",

'/'. $file->get_contextid(). '/'. $file->get_component(). '/'.

$file->get_filearea(). $file->get_filepath(). $file->get_filename(), !$isimage);

if ($isimage) {

$contentimages .= html_writer::tag('div',

html_writer::empty_tag('img', array('src' => $url)),

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

} else {

$image = $this->output->pix_icon(file_file_icon($file, 24), $file->get_filename(), 'moodle');

$filename = html_writer::tag('span', $image, array('class' => 'fp-icon')).

html_writer::tag('span', $file->get_filename(), array('class' => 'fp-filename'));

$contentfiles .= html_writer::tag('span',

html_writer::link($url, $filename),

array('class' => 'coursefile fp-filename-icon'));

}

$content .= $contentimages. $contentfiles;

// display course contacts. See course_in_list::get_course_contacts()

if ($course->has_course_contacts()) {

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

foreach ($course->get_course_contacts() as $userid => $coursecontact) {

$name = $coursecontact['rolename'].': '.

html_writer::link(new moodle_url('/user/view.php',

array('id' => $userid, 'course' => SITEID)),

$coursecontact['username']);

$content .= html_writer::tag('li', $name);

}

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

}

// display course category if necessary (for example in search results)

if ($chelper->get_show_courses() == self::COURSECAT_SHOW_COURSES_EXPANDED_WITH_CAT) {

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

if ($cat = coursecat::get($course->category, IGNORE_MISSING)) {

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

$content .= get_string('category').': '.

html_writer::link(new moodle_url('/course/index.php', array('categoryid' => $cat->id)),

$cat->get_formatted_name(), array('class' => $cat->visible ? '' : 'dimmed'));

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

}

return $content;

}

/**

* Renders the list of courses

*

* This is internal function, please use {@link core_course_renderer::courses_list()} or another public

* method from outside of the class

*

* If list of courses is specified in $courses; the argument $chelper is only used

* to retrieve display options and attributes, only methods get_show_courses(),

* get_courses_display_option() and get_and_erase_attributes() are called.

*

* @param coursecat_helper $chelper various display options

* @param array $courses the list of courses to display

* @param int|null $totalcount total number of courses (affects display mode if it is AUTO or pagination if applicable),

* defaulted to count($courses)

* @return string

*/

protected function coursecat_courses(coursecat_helper $chelper, $courses, $totalcount = null) {

global $CFG;

if ($totalcount === null) {

$totalcount = count($courses);

}

if (!$totalcount) {

// Courses count is cached during courses retrieval.

return '';

}

if ($chelper->get_show_courses() == self::COURSECAT_SHOW_COURSES_AUTO) {

// In 'auto' course display mode we analyse if number of courses is more or less than $CFG->courseswithsummarieslimit

if ($totalcount <= $CFG->courseswithsummarieslimit) {

$chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_EXPANDED);

} else {

$chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_COLLAPSED);

}

// prepare content of paging bar if it is needed

$paginationurl = $chelper->get_courses_display_option('paginationurl');

$paginationallowall = $chelper->get_courses_display_option('paginationallowall');

if ($totalcount > count($courses)) {

// there are more results that can fit on one page

if ($paginationurl) {

// the option paginationurl was specified, display pagingbar

$perpage = $chelper->get_courses_display_option('limit', $CFG->coursesperpage);

$page = $chelper->get_courses_display_option('offset') / $perpage;

$pagingbar = $this->paging_bar($totalcount, $page, $perpage,

$paginationurl->out(false, array('perpage' => $perpage)));

if ($paginationallowall) {

$pagingbar .= html_writer::tag('div', html_writer::link($paginationurl->out(false, array('perpage' => 'all')),

get_string('showall', '', $totalcount)), array('class' => 'paging paging-showall'));

}

} else if ($viewmoreurl = $chelper->get_courses_display_option('viewmoreurl')) {

// the option for 'View more' link was specified, display more link

$viewmoretext = $chelper->get_courses_display_option('viewmoretext', new lang_string('viewmore'));

$morelink = html_writer::tag('div', html_writer::link($viewmoreurl, $viewmoretext),

array('class' => 'paging paging-morelink'));

}

} else if (($totalcount > $CFG->coursesperpage) && $paginationurl && $paginationallowall) {

// there are more than one page of results and we are in 'view all' mode, suggest to go back to paginated view mode

$pagingbar = html_writer::tag('div', html_writer::link($paginationurl->out(false, array('perpage' => $CFG->coursesperpage)),

get_string('showperpage', '', $CFG->coursesperpage)), array('class' => 'paging paging-showperpage'));

}

// display list of courses

$attributes = $chelper->get_and_erase_attributes('courses');

$content = html_writer::start_tag('div', $attributes);

if (!empty($pagingbar)) {

$content .= $pagingbar;

}

$coursecount = 0;

foreach ($courses as $course) {

$coursecount ++;

$classes = ($coursecount%2) ? 'odd' : 'even';

if ($coursecount == 1) {

$classes .= ' first';

}

if ($coursecount >= count($courses)) {

$classes .= ' last';

}

$content .= $this->coursecat_coursebox($chelper, $course, $classes);

}

if (!empty($pagingbar)) {

$content .= $pagingbar;

}

if (!empty($morelink)) {

$content .= $morelink;

}

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

return $content;

}

/**

* Renders the list of subcategories in a category

*

* @param coursecat_helper $chelper various display options

* @param coursecat $coursecat

* @param int $depth depth of the category in the current tree

* @return string

*/

protected function coursecat_subcategories(coursecat_helper $chelper, $coursecat, $depth) {

global $CFG;

$subcategories = array();

if (!$chelper->get_categories_display_option('nodisplay')) {

$subcategories = $coursecat->get_children($chelper->get_categories_display_options());

}

$totalcount = $coursecat->get_children_count();

if (!$totalcount) {

// Note that we call coursecat::get_children_count() AFTER coursecat::get_children() to avoid extra DB requests.

// Categories count is cached during children categories retrieval.

return '';

}

// prepare content of paging bar or more link if it is needed

$paginationurl = $chelper->get_categories_display_option('paginationurl');

$paginationallowall = $chelper->get_categories_display_option('paginationallowall');

if ($totalcount > count($subcategories)) {

if ($paginationurl) {

// the option 'paginationurl was specified, display pagingbar

$perpage = $chelper->get_categories_display_option('limit', $CFG->coursesperpage);

$page = $chelper->get_categories_display_option('offset') / $perpage;

$pagingbar = $this->paging_bar($totalcount, $page, $perpage,

$paginationurl->out(false, array('perpage' => $perpage)));

if ($paginationallowall) {

$pagingbar .= html_writer::tag('div', html_writer::link($paginationurl->out(false, array('perpage' => 'all')),

get_string('showall', '', $totalcount)), array('class' => 'paging paging-showall'));

}

} else if ($viewmoreurl = $chelper->get_categories_display_option('viewmoreurl')) {

// the option 'viewmoreurl' was specified, display more link (if it is link to category view page, add category id)

if ($viewmoreurl->compare(new moodle_url('/course/index.php'), URL_MATCH_BASE)) {

$viewmoreurl->param('categoryid', $coursecat->id);

}

$viewmoretext = $chelper->get_categories_display_option('viewmoretext', new lang_string('viewmore'));

$morelink = html_writer::tag('div', html_writer::link($viewmoreurl, $viewmoretext),

array('class' => 'paging paging-morelink'));

}

} else if (($totalcount > $CFG->coursesperpage) && $paginationurl && $paginationallowall) {

// there are more than one page of results and we are in 'view all' mode, suggest to go back to paginated view mode

$pagingbar = html_writer::tag('div', html_writer::link($paginationurl->out(false, array('perpage' => $CFG->coursesperpage)),

get_string('showperpage', '', $CFG->coursesperpage)), array('class' => 'paging paging-showperpage'));

}

// display list of subcategories

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

if (!empty($pagingbar)) {

$content .= $pagingbar;

}

foreach ($subcategories as $subcategory) {

$content .= $this->coursecat_category($chelper, $subcategory, $depth + 1);

}

if (!empty($pagingbar)) {

$content .= $pagingbar;

}

if (!empty($morelink)) {

$content .= $morelink;

}

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

return $content;

}

/**

* Make sure that javascript file for AJAX expanding of courses and categories content is included

*/

protected function coursecat_include_js() {

if (!$this->page->requires->should_create_one_time_item_now('core_course_categoryexpanderjsinit')) {

return;

}

// We must only load this module once.

$this->page->requires->yui_module('moodle-course-categoryexpander',

'Y.Moodle.course.categoryexpander.init');

}

/**

* Returns HTML to display the subcategories and courses in the given category

*

* This method is re-used by AJAX to expand content of not loaded category

*

* @param coursecat_helper $chelper various display options

* @param coursecat $coursecat

* @param int $depth depth of the category in the current tree

* @return string

*/

protected function coursecat_category_content(coursecat_helper $chelper, $coursecat, $depth) {

$content = '';

// Subcategories

$content .= $this->coursecat_subcategories($chelper, $coursecat, $depth);

// AUTO show courses: Courses will be shown expanded if this is not nested category,

// and number of courses no bigger than $CFG->courseswithsummarieslimit.

$showcoursesauto = $chelper->get_show_courses() == self::COURSECAT_SHOW_COURSES_AUTO;

if ($showcoursesauto && $depth) {

// this is definitely collapsed mode

$chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_COLLAPSED);

}

// Courses

if ($chelper->get_show_courses() > core_course_renderer::COURSECAT_SHOW_COURSES_COUNT) {

$courses = array();

if (!$chelper->get_courses_display_option('nodisplay')) {

$courses = $coursecat->get_courses($chelper->get_courses_display_options());

}

if ($viewmoreurl = $chelper->get_courses_display_option('viewmoreurl')) {

// the option for 'View more' link was specified, display more link (if it is link to category view page, add category id)

if ($viewmoreurl->compare(new moodle_url('/course/index.php'), URL_MATCH_BASE)) {

$chelper->set_courses_display_option('viewmoreurl', new moodle_url($viewmoreurl, array('categoryid' => $coursecat->id)));

}

$content .= $this->coursecat_courses($chelper, $courses, $coursecat->get_courses_count());

}

if ($showcoursesauto) {

// restore the show_courses back to AUTO

$chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_AUTO);

}

return $content;

}

/**

* Returns HTML to display a course category as a part of a tree

*

* This is an internal function, to display a particular category and all its contents

* use {@link core_course_renderer::course_category()}

*

* @param coursecat_helper $chelper various display options

* @param coursecat $coursecat

* @param int $depth depth of this category in the current tree

* @return string

*/

protected function coursecat_category(coursecat_helper $chelper, $coursecat, $depth) {

// open category tag

$classes = array('category');

if (empty($coursecat->visible)) {

Recent DiffsClear

Saved Diffs

Created by:frankiekam

-ORIGINAL FILE
+MODIFIED FILE
 <?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/>.
 /**
  * Renderer for use with the course section and all the goodness that falls
  * within it.
  *
  * This renderer should contain methods useful to courses, and categories.
  *
  * @package   moodlecore
  * @copyright 2010 Sam Hemelryk
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 /**
  * The core course renderer
  *
  * Can be retrieved with the following:
  * $renderer = $PAGE->get_renderer('core','course');
  */
 class core_course_renderer extends plugin_renderer_base {
     const COURSECAT_SHOW_COURSES_NONE = 0; /* do not show courses at all */
     const COURSECAT_SHOW_COURSES_COUNT = 5; /* do not show courses but show number of courses next to category name */
     const COURSECAT_SHOW_COURSES_COLLAPSED = 10;
     const COURSECAT_SHOW_COURSES_AUTO = 15; /* will choose between collapsed and expanded automatically */
     const COURSECAT_SHOW_COURSES_EXPANDED = 20;
     const COURSECAT_SHOW_COURSES_EXPANDED_WITH_CAT = 30;
     const COURSECAT_TYPE_CATEGORY = 0;
     const COURSECAT_TYPE_COURSE = 1;
     /**
      * A cache of strings
      * @var stdClass
      */
     protected $strings;
     /**
      * Override the constructor so that we can initialise the string cache
      *
      * @param moodle_page $page
      * @param string $target
      */
     public function __construct(moodle_page $page, $target) {
         $this->strings = new stdClass;
         parent::__construct($page, $target);
         $this->add_modchoosertoggle();
     }
     /**
      * Adds the item in course settings navigation to toggle modchooser
      *
      * Theme can overwrite as an empty function to exclude it (for example if theme does not
      * use modchooser at all)
      */
     protected function add_modchoosertoggle() {
         global $CFG;
         // Only needs to be done once per page.
         if (!$this->page->requires->should_create_one_time_item_now('core_course_modchoosertoggle')) {
             return;
         }
         if ($this->page->state > moodle_page::STATE_PRINTING_HEADER ||
                 $this->page->course->id == SITEID ||
                 !$this->page->user_is_editing() ||
                 !($context = context_course::instance($this->page->course->id)) ||
                 !has_capability('moodle/course:manageactivities', $context) ||
                 !course_ajax_enabled($this->page->course) ||
                 !($coursenode = $this->page->settingsnav->find('courseadmin', navigation_node::TYPE_COURSE)) ||
                 !($turneditingnode = $coursenode->get('turneditingonoff'))) {
             // Too late, or we are on site page, or we could not find the
             // adjacent nodes in course settings menu, or we are not allowed to edit.
             return;
         }
         if ($this->page->url->compare(new moodle_url('/course/view.php'), URL_MATCH_BASE)) {
             // We are on the course page, retain the current page params e.g. section.
             $modchoosertoggleurl = clone($this->page->url);
         } else {
             // Edit on the main course page.
             $modchoosertoggleurl = new moodle_url('/course/view.php', array('id' => $this->page->course->id,
                 'return' => $this->page->url->out_as_local_url(false)));
         }
         $modchoosertoggleurl->param('sesskey', sesskey());
         if ($usemodchooser = get_user_preferences('usemodchooser', $CFG->modchooserdefault)) {
             $modchoosertogglestring = get_string('modchooserdisable', 'moodle');
             $modchoosertoggleurl->param('modchooser', 'off');
         } else {
             $modchoosertogglestring = get_string('modchooserenable', 'moodle');
             $modchoosertoggleurl->param('modchooser', 'on');
         }
         $modchoosertoggle = navigation_node::create($modchoosertogglestring, $modchoosertoggleurl, navigation_node::TYPE_SETTING, null, 'modchoosertoggle');
         // Insert the modchoosertoggle after the settings node 'turneditingonoff' (navigation_node only has function to insert before, so we insert before and then swap).
         $coursenode->add_node($modchoosertoggle, 'turneditingonoff');
         $turneditingnode->remove();
         $coursenode->add_node($turneditingnode, 'modchoosertoggle');
         $modchoosertoggle->add_class('modchoosertoggle');
         $modchoosertoggle->add_class('visibleifjs');
         user_preference_allow_ajax_update('usemodchooser', PARAM_BOOL);
     }
     /**
      * Renders course info box.
      *
      * @param stdClass|course_in_list $course
      * @return string
      */
     public function course_info_box(stdClass $course) {
         $content = '';
         $content .= $this->output->box_start('generalbox info');
         $chelper = new coursecat_helper();
         $chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_EXPANDED);
         $content .= $this->coursecat_coursebox($chelper, $course);
         $content .= $this->output->box_end();
         return $content;
     }
     /**
      * Renderers a structured array of courses and categories into a nice XHTML tree structure.
      *
      * @deprecated since 2.5
      *
      * Please see http://docs.moodle.org/dev/Courses_lists_upgrade_to_2.5
      *
      * @param array $ignored argument ignored
      * @return string
      */
     public final function course_category_tree(array $ignored) {
         debugging('Function core_course_renderer::course_category_tree() is deprecated, please use frontpage_combo_list()', DEBUG_DEVELOPER);
         return $this->frontpage_combo_list();
     }
     /**
      * Renderers a category for use with course_category_tree
      *
      * @deprecated since 2.5
      *
      * Please see http://docs.moodle.org/dev/Courses_lists_upgrade_to_2.5
      *
      * @param array $category
      * @param int $depth
      * @return string
      */
     protected final function course_category_tree_category(stdClass $category, $depth=1) {
         debugging('Function core_course_renderer::course_category_tree_category() is deprecated', DEBUG_DEVELOPER);
         return '';
     }
     /**
      * Build the HTML for the module chooser javascript popup
      *
      * @param array $modules A set of modules as returned form @see
      * get_module_metadata
      * @param object $course The course that will be displayed
      * @return string The composed HTML for the module
      */
     public function course_modchooser($modules, $course) {
         if (!$this->page->requires->should_create_one_time_item_now('core_course_modchooser')) {
             return '';
         }
         // Add the module chooser
         $this->page->requires->yui_module('moodle-course-modchooser',
         'M.course.init_chooser',
         array(array('courseid' => $course->id, 'closeButtonTitle' => get_string('close', 'editor')))
         );
         $this->page->requires->strings_for_js(array(
                 'addresourceoractivity',
                 'modchooserenable',
                 'modchooserdisable',
         ), 'moodle');
         // Add the header
         $header = html_writer::tag('div', get_string('addresourceoractivity', 'moodle'),
                 array('class' => 'hd choosertitle'));
         $formcontent = html_writer::start_tag('form', array('action' => new moodle_url('/course/jumpto.php'),
                 'id' => 'chooserform', 'method' => 'post'));
         $formcontent .= html_writer::start_tag('div', array('id' => 'typeformdiv'));
         $formcontent .= html_writer::tag('input', '', array('type' => 'hidden', 'id' => 'course',
                 'name' => 'course', 'value' => $course->id));
         $formcontent .= html_writer::tag('input', '', array('type' => 'hidden', 'name' => 'sesskey',
                 'value' => sesskey()));
         $formcontent .= html_writer::end_tag('div');
         // Put everything into one tag 'options'
         $formcontent .= html_writer::start_tag('div', array('class' => 'options'));
         $formcontent .= html_writer::tag('div', get_string('selectmoduletoviewhelp', 'moodle'),
                 array('class' => 'instruction'));
         // Put all options into one tag 'alloptions' to allow us to handle scrolling
         $formcontent .= html_writer::start_tag('div', array('class' => 'alloptions'));
          // Activities
         $activities = array_filter($modules, create_function('$mod', 'return ($mod->archetype !== MOD_ARCHETYPE_RESOURCE && $mod->archetype !== MOD_ARCHETYPE_SYSTEM);'));
         if (count($activities)) {
             $formcontent .= $this->course_modchooser_title('activities');
             $formcontent .= $this->course_modchooser_module_types($activities);
         }
         // Resources
         $resources = array_filter($modules, create_function('$mod', 'return ($mod->archetype === MOD_ARCHETYPE_RESOURCE);'));
         if (count($resources)) {
             $formcontent .= $this->course_modchooser_title('resources');
             $formcontent .= $this->course_modchooser_module_types($resources);
         }
         $formcontent .= html_writer::end_tag('div'); // modoptions
         $formcontent .= html_writer::end_tag('div'); // types
         $formcontent .= html_writer::start_tag('div', array('class' => 'submitbuttons'));
         $formcontent .= html_writer::tag('input', '',
                 array('type' => 'submit', 'name' => 'submitbutton', 'class' => 'submitbutton', 'value' => get_string('add')));
         $formcontent .= html_writer::tag('input', '',
                 array('type' => 'submit', 'name' => 'addcancel', 'class' => 'addcancel', 'value' => get_string('cancel')));
         $formcontent .= html_writer::end_tag('div');
         $formcontent .= html_writer::end_tag('form');
         // Wrap the whole form in a div
         $formcontent = html_writer::tag('div', $formcontent, array('id' => 'chooseform'));
         // Put all of the content together
         $content = $formcontent;
         $content = html_writer::tag('div', $content, array('class' => 'choosercontainer'));
         return $header . html_writer::tag('div', $content, array('class' => 'chooserdialoguebody'));
     }
     /**
      * Build the HTML for a specified set of modules
      *
      * @param array $modules A set of modules as used by the
      * course_modchooser_module function
      * @return string The composed HTML for the module
      */
     protected function course_modchooser_module_types($modules) {
         $return = '';
         foreach ($modules as $module) {
             if (!isset($module->types)) {
                 $return .= $this->course_modchooser_module($module);
             } else {
                 $return .= $this->course_modchooser_module($module, array('nonoption'));
                 foreach ($module->types as $type) {
                     $return .= $this->course_modchooser_module($type, array('option', 'subtype'));
                 }
             }
         }
         return $return;
     }
     /**
      * Return the HTML for the specified module adding any required classes
      *
      * @param object $module An object containing the title, and link. An
      * icon, and help text may optionally be specified. If the module
      * contains subtypes in the types option, then these will also be
      * displayed.
      * @param array $classes Additional classes to add to the encompassing
      * div element
      * @return string The composed HTML for the module
      */
     protected function course_modchooser_module($module, $classes = array('option')) {
         $output = '';
         $output .= html_writer::start_tag('div', array('class' => implode(' ', $classes)));
         $output .= html_writer::start_tag('label', array('for' => 'module_' . $module->name));
         if (!isset($module->types)) {
             $output .= html_writer::tag('input', '', array('type' => 'radio',
                     'name' => 'jumplink', 'id' => 'module_' . $module->name, 'value' => $module->link));
         }
         $output .= html_writer::start_tag('span', array('class' => 'modicon'));
         if (isset($module->icon)) {
             // Add an icon if we have one
             $output .= $module->icon;
         }
         $output .= html_writer::end_tag('span');
         $output .= html_writer::tag('span', $module->title, array('class' => 'typename'));
         if (!isset($module->help)) {
             // Add help if found
             $module->help = get_string('nohelpforactivityorresource', 'moodle');
         }
         // Format the help text using markdown with the following options
         $options = new stdClass();
         $options->trusted = false;
         $options->noclean = false;
         $options->smiley = false;
         $options->filter = false;
         $options->para = true;
         $options->newlines = false;
         $options->overflowdiv = false;
         $module->help = format_text($module->help, FORMAT_MARKDOWN, $options);
         $output .= html_writer::tag('span', $module->help, array('class' => 'typesummary'));
         $output .= html_writer::end_tag('label');
         $output .= html_writer::end_tag('div');
         return $output;
     }
     protected function course_modchooser_title($title, $identifier = null) {
         $module = new stdClass();
         $module->name = $title;
         $module->types = array();
         $module->title = get_string($title, $identifier);
         $module->help = '';
         return $this->course_modchooser_module($module, array('moduletypetitle'));
     }
     /**
      * Renders HTML for displaying the sequence of course module editing buttons
      *
      * @see course_get_cm_edit_actions()
      *
      * @param action_link[] $actions Array of action_link objects
      * @param cm_info $mod The module we are displaying actions for.
      * @param array $displayoptions additional display options:
      *     ownerselector => A JS/CSS selector that can be used to find an cm node.
      *         If specified the owning node will be given the class 'action-menu-shown' when the action
      *         menu is being displayed.
      *     constraintselector => A JS/CSS selector that can be used to find the parent node for which to constrain
      *         the action menu to when it is being displayed.
      *     donotenhance => If set to true the action menu that gets displayed won't be enhanced by JS.
      * @return string
      */
     public function course_section_cm_edit_actions($actions, cm_info $mod = null, $displayoptions = array()) {
         global $CFG;
         if (empty($actions)) {
             return '';
         }
         if (isset($displayoptions['ownerselector'])) {
             $ownerselector = $displayoptions['ownerselector'];
         } else if ($mod) {
             $ownerselector = '#module-'.$mod->id;
         } else {
             debugging('You should upgrade your call to '.__FUNCTION__.' and provide $mod', DEBUG_DEVELOPER);
             $ownerselector = 'li.activity';
         }
         if (isset($displayoptions['constraintselector'])) {
             $constraint = $displayoptions['constraintselector'];
         } else {
             $constraint = '.course-content';
         }
         $menu = new action_menu();
         $menu->set_owner_selector($ownerselector);
         $menu->set_constraint($constraint);
         $menu->set_alignment(action_menu::TR, action_menu::BR);
         $menu->set_menu_trigger(get_string('edit'));
         if (isset($CFG->modeditingmenu) && !$CFG->modeditingmenu || !empty($displayoptions['donotenhance'])) {
             $menu->do_not_enhance();
             // Swap the left/right icons.
             // Normally we have have right, then left but this does not
             // make sense when modactionmenu is disabled.
             $moveright = null;
             $_actions = array();
             foreach ($actions as $key => $value) {
                 if ($key === 'moveright') {
                     // Save moveright for later.
                     $moveright = $value;
                 } else if ($moveright) {
                     // This assumes that the order was moveright, moveleft.
                     // If we have a moveright, then we should place it immediately after the current value.
                     $_actions[$key] = $value;
                     $_actions['moveright'] = $moveright;
                     // Clear the value to prevent it being used multiple times.
                     $moveright = null;
                 } else {
                     $_actions[$key] = $value;
                 }
             }
             $actions = $_actions;
             unset($_actions);
         }
         foreach ($actions as $action) {
             if ($action instanceof action_menu_link) {
                 $action->add_class('cm-edit-action');
             }
             $menu->add($action);
         }
         $menu->attributes['class'] .= ' section-cm-edit-actions commands';
         // Prioritise the menu ahead of all other actions.
         $menu->prioritise = true;
         return $this->render($menu);
     }
     /**
      * Renders HTML for the menus to add activities and resources to the current course
      *
      * Note, if theme overwrites this function and it does not use modchooser,
      * see also {@link core_course_renderer::add_modchoosertoggle()}
      *
      * @param stdClass $course
      * @param int $section relative section number (field course_sections.section)
      * @param int $sectionreturn The section to link back to
      * @param array $displayoptions additional display options, for example blocks add
      *     option 'inblock' => true, suggesting to display controls vertically
      * @return string
      */
     function course_section_add_cm_control($course, $section, $sectionreturn = null, $displayoptions = array()) {
         global $CFG;
         $vertical = !empty($displayoptions['inblock']);
         // check to see if user can add menus and there are modules to add
         if (!has_capability('moodle/course:manageactivities', context_course::instance($course->id))
                 || !$this->page->user_is_editing()
                 || !($modnames = get_module_types_names()) || empty($modnames)) {
             return '';
         }
         // Retrieve all modules with associated metadata
         $modules = get_module_metadata($course, $modnames, $sectionreturn);
         $urlparams = array('section' => $section);
         // We'll sort resources and activities into two lists
         $activities = array(MOD_CLASS_ACTIVITY => array(), MOD_CLASS_RESOURCE => array());
         foreach ($modules as $module) {
             if (isset($module->types)) {
                 // This module has a subtype
                 // NOTE: this is legacy stuff, module subtypes are very strongly discouraged!!
                 $subtypes = array();
                 foreach ($module->types as $subtype) {
                     $link = $subtype->link->out(true, $urlparams);
                     $subtypes[$link] = $subtype->title;
                 }
                 // Sort module subtypes into the list
                 $activityclass = MOD_CLASS_ACTIVITY;
                 if ($module->archetype == MOD_CLASS_RESOURCE) {
                     $activityclass = MOD_CLASS_RESOURCE;
                 }
                 if (!empty($module->title)) {
                     // This grouping has a name
                     $activities[$activityclass][] = array($module->title => $subtypes);
                 } else {
                     // This grouping does not have a name
                     $activities[$activityclass] = array_merge($activities[$activityclass], $subtypes);
                 }
             } else {
                 // This module has no subtypes
                 $activityclass = MOD_CLASS_ACTIVITY;
                 if ($module->archetype == MOD_ARCHETYPE_RESOURCE) {
                     $activityclass = MOD_CLASS_RESOURCE;
                 } else if ($module->archetype === MOD_ARCHETYPE_SYSTEM) {
                     // System modules cannot be added by user, do not add to dropdown
                     continue;
                 }
                 $link = $module->link->out(true, $urlparams);
                 $activities[$activityclass][$link] = $module->title;
             }
         }
         $straddactivity = get_string('addactivity');
         $straddresource = get_string('addresource');
         $sectionname = get_section_name($course, $section);
         $strresourcelabel = get_string('addresourcetosection', null, $sectionname);
         $stractivitylabel = get_string('addactivitytosection', null, $sectionname);
         $output = html_writer::start_tag('div', array('class' => 'section_add_menus', 'id' => 'add_menus-section-' . $section));
         if (!$vertical) {
             $output .= html_writer::start_tag('div', array('class' => 'horizontal'));
         }
         if (!empty($activities[MOD_CLASS_RESOURCE])) {
             $select = new url_select($activities[MOD_CLASS_RESOURCE], '', array(''=>$straddresource), "ressection$section");
             $select->set_help_icon('resources');
             $select->set_label($strresourcelabel, array('class' => 'accesshide'));
             $output .= $this->output->render($select);
         }
         if (!empty($activities[MOD_CLASS_ACTIVITY])) {
             $select = new url_select($activities[MOD_CLASS_ACTIVITY], '', array(''=>$straddactivity), "section$section");
             $select->set_help_icon('activities');
             $select->set_label($stractivitylabel, array('class' => 'accesshide'));
             $output .= $this->output->render($select);
         }
         if (!$vertical) {
             $output .= html_writer::end_tag('div');
         }
         $output .= html_writer::end_tag('div');
         if (course_ajax_enabled($course) && $course->id == $this->page->course->id) {
             // modchooser can be added only for the current course set on the page!
             $straddeither = get_string('addresourceoractivity');
             // The module chooser link
             $modchooser = html_writer::start_tag('div', array('class' => 'mdl-right'));
             $modchooser.= html_writer::start_tag('div', array('class' => 'section-modchooser'));
             $icon = $this->output->pix_icon('t/add', '');
             $span = html_writer::tag('span', $straddeither, array('class' => 'section-modchooser-text'));
             $modchooser .= html_writer::tag('span', $icon . $span, array('class' => 'section-modchooser-link'));
             $modchooser.= html_writer::end_tag('div');
             $modchooser.= html_writer::end_tag('div');
             // Wrap the normal output in a noscript div
             $usemodchooser = get_user_preferences('usemodchooser', $CFG->modchooserdefault);
             if ($usemodchooser) {
                 $output = html_writer::tag('div', $output, array('class' => 'hiddenifjs addresourcedropdown'));
                 $modchooser = html_writer::tag('div', $modchooser, array('class' => 'visibleifjs addresourcemodchooser'));
             } else {
                 // If the module chooser is disabled, we need to ensure that the dropdowns are shown even if javascript is disabled
                 $output = html_writer::tag('div', $output, array('class' => 'show addresourcedropdown'));
                 $modchooser = html_writer::tag('div', $modchooser, array('class' => 'hide addresourcemodchooser'));
             }
             $output = $this->course_modchooser($modules, $course) . $modchooser . $output;
         }
         return $output;
     }
     /**
      * Renders html to display a course search form
      *
      * @param string $value default value to populate the search field
      * @param string $format display format - 'plain' (default), 'short' or 'navbar'
      * @return string
      */
     function course_search_form($value = '', $format = 'plain') {
         static $count = 0;
         $formid = 'coursesearch';
         if ((++$count) > 1) {
             $formid .= $count;
         }
         switch ($format) {
             case 'navbar' :
                 $formid = 'coursesearchnavbar';
                 $inputid = 'navsearchbox';
                 $inputsize = 20;
                 break;
             case 'short' :
                 $inputid = 'shortsearchbox';
                 $inputsize = 12;
                 break;
             default :
                 $inputid = 'coursesearchbox';
                 $inputsize = 30;
         }
         $strsearchcourses= get_string("searchcourses");
         $searchurl = new moodle_url('/course/search.php');
         $output = html_writer::start_tag('form', array('id' => $formid, 'action' => $searchurl, 'method' => 'get'));
         $output .= html_writer::start_tag('fieldset', array('class' => 'coursesearchbox invisiblefieldset'));
         $output .= html_writer::tag('label', $strsearchcourses.': ', array('for' => $inputid));
         $output .= html_writer::empty_tag('input', array('type' => 'text', 'id' => $inputid,
             'size' => $inputsize, 'name' => 'search', 'value' => s($value)));
         $output .= html_writer::empty_tag('input', array('type' => 'submit',
             'value' => get_string('go')));
         $output .= html_writer::end_tag('fieldset');
         $output .= html_writer::end_tag('form');
         return $output;
     }
     /**
      * Renders html for completion box on course page
      *
      * If completion is disabled, returns empty string
      * If completion is automatic, returns an icon of the current completion state
      * If completion is manual, returns a form (with an icon inside) that allows user to
      * toggle completion
      *
      * @param stdClass $course course object
      * @param completion_info $completioninfo completion info for the course, it is recommended
      *     to fetch once for all modules in course/section for performance
      * @param cm_info $mod module to show completion for
      * @param array $displayoptions display options, not used in core
      * @return string
      */
     public function course_section_cm_completion($course, &$completioninfo, cm_info $mod, $displayoptions = array()) {
         global $CFG;
         $output = '';
         if (!empty($displayoptions['hidecompletion']) || !isloggedin() || isguestuser() || !$mod->uservisible) {
             return $output;
         }
         if ($completioninfo === null) {
             $completioninfo = new completion_info($course);
         }
         $completion = $completioninfo->is_enabled($mod);
         if ($completion == COMPLETION_TRACKING_NONE) {
             if ($this->page->user_is_editing()) {
                 $output .= html_writer::span('&nbsp;', 'filler');
             }
             return $output;
         }
         $completiondata = $completioninfo->get_data($mod, true);
         $completionicon = '';
         if ($this->page->user_is_editing()) {
             switch ($completion) {
                 case COMPLETION_TRACKING_MANUAL :
                     $completionicon = 'manual-enabled'; break;
                 case COMPLETION_TRACKING_AUTOMATIC :
                     $completionicon = 'auto-enabled'; break;
             }
         } else if ($completion == COMPLETION_TRACKING_MANUAL) {
             switch($completiondata->completionstate) {
                 case COMPLETION_INCOMPLETE:
                     $completionicon = 'manual-n'; break;
                 case COMPLETION_COMPLETE:
                     $completionicon = 'manual-y'; break;
             }
         } else { // Automatic
             switch($completiondata->completionstate) {
                 case COMPLETION_INCOMPLETE:
                     $completionicon = 'auto-n'; break;
                 case COMPLETION_COMPLETE:
                     $completionicon = 'auto-y'; break;
                 case COMPLETION_COMPLETE_PASS:
                     $completionicon = 'auto-pass'; break;
                 case COMPLETION_COMPLETE_FAIL:
                     $completionicon = 'auto-fail'; break;
             }
         }
         if ($completionicon) {
             $formattedname = $mod->get_formatted_name();
             $imgalt = get_string('completion-alt-' . $completionicon, 'completion', $formattedname);
             if ($this->page->user_is_editing()) {
                 // When editing, the icon is just an image.
                 $completionpixicon = new pix_icon('i/completion-'.$completionicon, $imgalt, '',
                         array('title' => $imgalt, 'class' => 'iconsmall'));
                 $output .= html_writer::tag('span', $this->output->render($completionpixicon),
                         array('class' => 'autocompletion'));
             } else if ($completion == COMPLETION_TRACKING_MANUAL) {
                 $imgtitle = get_string('completion-title-' . $completionicon, 'completion', $formattedname);
                 $newstate =
                     $completiondata->completionstate == COMPLETION_COMPLETE
                     ? COMPLETION_INCOMPLETE
                     : COMPLETION_COMPLETE;
                 // In manual mode the icon is a toggle form...
                 // If this completion state is used by the
                 // conditional activities system, we need to turn
                 // off the JS.
                 $extraclass = '';
                 if (!empty($CFG->enableavailability) &&
                         core_availability\info::completion_value_used($course, $mod->id)) {
                     $extraclass = ' preventjs';
                 }
                 $output .= html_writer::start_tag('form', array('method' => 'post',
                     'action' => new moodle_url('/course/togglecompletion.php'),
                     'class' => 'togglecompletion'. $extraclass));
                 $output .= html_writer::start_tag('div');
                 $output .= html_writer::empty_tag('input', array(
                     'type' => 'hidden', 'name' => 'id', 'value' => $mod->id));
                 $output .= html_writer::empty_tag('input', array(
                     'type' => 'hidden', 'name' => 'sesskey', 'value' => sesskey()));
                 $output .= html_writer::empty_tag('input', array(
                     'type' => 'hidden', 'name' => 'modulename', 'value' => $mod->name));
                 $output .= html_writer::empty_tag('input', array(
                     'type' => 'hidden', 'name' => 'completionstate', 'value' => $newstate));
                 $output .= html_writer::empty_tag('input', array(
                     'type' => 'image',
                     'src' => $this->output->pix_url('i/completion-'.$completionicon),
                     'alt' => $imgalt, 'title' => $imgtitle,
                     'aria-live' => 'polite'));
                 $output .= html_writer::end_tag('div');
                 $output .= html_writer::end_tag('form');
             } else {
                 // In auto mode, the icon is just an image.
                 $completionpixicon = new pix_icon('i/completion-'.$completionicon, $imgalt, '',
                         array('title' => $imgalt));
                 $output .= html_writer::tag('span', $this->output->render($completionpixicon),
                         array('class' => 'autocompletion'));
             }
         }
         return $output;
     }
     /**
      * Checks if course module has any conditions that may make it unavailable for
      * all or some of the students
      *
      * This function is internal and is only used to create CSS classes for the module name/text
      *
      * @param cm_info $mod
      * @return bool
      */
     protected function is_cm_conditionally_hidden(cm_info $mod) {
         global $CFG;
         $conditionalhidden = false;
         if (!empty($CFG->enableavailability)) {
             $info = new \core_availability\info_module($mod);
             $conditionalhidden = !$info->is_available_for_all();
         }
         return $conditionalhidden;
     }
     /**
      * Renders html to display a name with the link to the course module on a course page
      *
      * If module is unavailable for user but still needs to be displayed
      * in the list, just the name is returned without a link
      *
      * Note, that for course modules that never have separate pages (i.e. labels)
      * this function return an empty string
      *
      * @param cm_info $mod
      * @param array $displayoptions
      * @return string
      */
     public function course_section_cm_name(cm_info $mod, $displayoptions = array()) {
+        $output = '';
+        if (!$mod->uservisible && empty($mod->availableinfo)) {
+            // nothing to be displayed to the user
+            return $output;
+        }
+        $url = $mod->url;
+        if (!$url) {
+            return $output;
+        }
+        //Accessibility: for files get description via icon, this is very ugly hack!
+        $instancename = $mod->get_formatted_name();
+        $altname = $mod->modfullname;
+        // Avoid unnecessary duplication: if e.g. a forum name already
+        // includes the word forum (or Forum, etc) then it is unhelpful
+        // to include that in the accessible description that is added.
+        if (false !== strpos(core_text::strtolower($instancename),
+                core_text::strtolower($altname))) {
+            $altname = '';
+        }
+        // File type after name, for alphabetic lists (screen reader).
+        if ($altname) {
+            $altname = get_accesshide(' '.$altname);
+        }
+        // For items which are hidden but available to current user
+        // ($mod->uservisible), we show those as dimmed only if the user has
+        // viewhiddenactivities, so that teachers see 'items which might not
+        // be available to some students' dimmed but students do not see 'item
+        // which is actually available to current student' dimmed.
+        $linkclasses = '';
+        $accesstext = '';
+        $textclasses = '';
+        if ($mod->uservisible) {
+            $conditionalhidden = $this->is_cm_conditionally_hidden($mod);
+            $accessiblebutdim = (!$mod->visible || $conditionalhidden) &&
+                has_capability('moodle/course:viewhiddenactivities', $mod->context);
+            if ($accessiblebutdim) {
+                $linkclasses .= ' dimmed';
+                $textclasses .= ' dimmed_text';
+                if ($conditionalhidden) {
+                    $linkclasses .= ' conditionalhidden';
+                    $textclasses .= ' conditionalhidden';
+                }
+                // Show accessibility note only if user can access the module himself.
+                $accesstext = get_accesshide(get_string('hiddenfromstudents').':'. $mod->modfullname);
+            }
+        } else {
+            $linkclasses .= ' dimmed';
+            $textclasses .= ' dimmed_text';
+        }
+        // Get on-click attribute value if specified and decode the onclick - it
+        // has already been encoded for display (puke).
+        $onclick = htmlspecialchars_decode($mod->onclick, ENT_QUOTES);
+        $groupinglabel = $mod->get_grouping_label($textclasses);
+        // Display link itself.
+        $activitylink = html_writer::empty_tag('img', array('src' => $mod->get_icon_url(),
+                'class' => 'iconlarge activityicon', 'alt' => ' ', 'role' => 'presentation')) . $accesstext .
+                html_writer::tag('span', $instancename . $altname, array('class' => 'instancename'));
+		$filename = $url;
+        if ($mod->uservisible) {
+            /* Start of Frankie code */
+			//print_object($activitylink);
+			 if (
+			       (strpos($activitylink,'writer-24') !== false) ||
+                   (strpos($activitylink,'calc-24') !== false)   ||
+				   (strpos($activitylink,'impress-24') !== false)
+				)
+		    {
+			   $url = str_replace("/m30/","/m30/ViewerJS/#../", $url);
+               $output .= html_writer::link($url, $activitylink, array(/*'title'=>'Click text to pop-up PDF',*/'rel' => 'shadowbox[Mixed]'/*,'onclick' => $onclick*/)) .
+					$groupinglabel;
+			   /*
+			   $output .= html_writer::link($url, $activitylink,
+			              array('data-fancybox-type' => 'iframe',  'class' => 'fancybox', 'onclick' => $onclick)) .
+                          $groupinglabel;
+				*/
+            }
+			else
+			if (strpos($activitylink,'pdf-24') !== false)
+			{
+				/*$browser = $_SERVER['HTTP_USER_AGENT'];
+				$chrome = '/Chrome/';
+				$firefox = '/Firefox/';
+				$ie = '/MSIE/';
+				if (preg_match($firefox, $browser))
+				*/
+				if (core_useragent::is_chrome())
+				{
+					/*This code replaces this: http://cefl4u.org/teach/pdf.js-gh-pages/web/viewer.html?file=http://cefl4u.org/teach/mod/resource/view.php%3Fid=44
+					  with this: http://cefl4u.org/teach/pdf.js-gh-pages/web/viewer.html?file=http%3A%2F%2Fcefl4u%2Eorg%2Fteach%2Fmod%2Fresource%2Fview%2Ephp%3Fid%3D44
+						%3A     :     Colon
+						%2F     /     Solidus (slash)
+						%2E     .     Period (fullstop)
+						%3D     =     Equals sign
+						%3F     ?     Question mark
+					*/
+                    global $CFG;
+					$newurl = str_replace(':','%3A', $url);
+					$newurl = str_replace('/','%2F', $newurl);
+					$newurl = str_replace('.','%2E', $newurl);
+					$newurl = str_replace('?','%3F', $newurl);
+					$newurl = str_replace('=','%3D', $newurl);
+				    $newurl = $CFG->wwwroot.'/pdf.js-gh-pages/web/viewer.html?file='.$newurl;
+					$activitylink = html_writer::empty_tag('img', array('src' => $mod->get_icon_url(),
+					              'class' => 'iconlarge activityicon', 'alt' => ' ', 'role' => 'presentation'));
+					//So hard to just add the word download but here it is!
+					//$output .=  str_replace('=""','',html_writer::link($url, $activitylink, str_replace('=""','',array('download'=>'','title'=>'Click icon to download'))));
+					$output .=  str_replace('=""','',html_writer::link($url, $activitylink, array('download'=>'','title'=>'Click icon to download')));
+					$instancename = html_writer::start_span('instancename').$instancename.
+									html_writer::start_span('accesshide ').'File'.
+									html_writer::end_span().
+									html_writer::end_span();
+					//ShadowBox
+					$output .= html_writer::link($newurl, $instancename, array('title'=>'Click text to pop-up PDF','rel' => 'shadowbox[Mixed]','onclick' => $onclick)) .
+					$groupinglabel;
+				} else
+				if (core_useragent::is_firefox()) {
+                    global $CFG;
+					$newurl = str_replace(':','%3A', $url);
+					$newurl = str_replace('/','%2F', $newurl);
+					$newurl = str_replace('.','%2E', $newurl);
+					$newurl = str_replace('?','%3F', $newurl);
+					$newurl = str_replace('=','%3D', $newurl);
+				    $newurl = $CFG->wwwroot.'/pdf.js-gh-pages/web/viewer.html?file='.$newurl;
+					$activitylink = html_writer::empty_tag('img', array('src' => $mod->get_icon_url(),
+					              'class' => 'iconlarge activityicon', 'alt' => ' ', 'role' => 'presentation'));
+					//So hard to just add the word download but here it is!
+					//$output .=  str_replace('=""','',html_writer::link($url, $activitylink, str_replace('=""','',array('download'=>'','title'=>'Click icon to download'))));
+					$output .=  str_replace('=""','',html_writer::link($url, $activitylink, array('download'=>'','title'=>'Right-click icon to download')));
+					$instancename = html_writer::start_span('instancename').$instancename.
+									html_writer::start_span('accesshide ').'File'.
+									html_writer::end_span().
+									html_writer::end_span();
+					//ShadowBox
+					$output .= html_writer::link($newurl, $instancename, array('title'=>'Click text to pop-up PDF','rel' => 'shadowbox[Mixed]'/*,'onclick' => $onclick*/)) .
+					$groupinglabel;
+				}
+			    else if (core_useragent::is_safari_ios())
+					{
+					    global $CFG;
+						$newurl = str_replace(':','%3A', $url);
+						$newurl = str_replace('/','%2F', $newurl);
+						$newurl = str_replace('.','%2E', $newurl);
+						$newurl = str_replace('?','%3F', $newurl);
+						$newurl = str_replace('=','%3D', $newurl);
+						$newurl = $CFG->wwwroot.'/pdf.js-gh-pages/web/viewer.html?file='.$newurl;
+						//ShadowBox
+						$output .= html_writer::link($newurl, $activitylink, array('title'=>'Click text to
+							pop-up PDF', 'rel' => 'shadowbox[Mixed]','onclick' => $onclick)) .
+							$groupinglabel;
+					}
+					else if(core_useragent::is_ie())
+					{  /* Opera, and ALL others!!! */
+							global $CFG;
+							$newurl = str_replace(':','%3A', $url);
+							$newurl = str_replace('/','%2F', $newurl);
+							$newurl = str_replace('.','%2E', $newurl);
+							$newurl = str_replace('?','%3F', $newurl);
+							$newurl = str_replace('=','%3D', $newurl);
+							$newurl = $CFG->wwwroot.'/pdf.js-gh-pages/web/viewer.html?file='.$newurl;
+							//ShadowBox
+							$output .= html_writer::link($newurl, $activitylink, array('title'=>'Click text to pop-up PDF','rel' => 'shadowbox[Mixed]','onclick' => $onclick)).
+							$groupinglabel;
+						}
+						else
+						{   /* Opera, and ALL others!!! */
+							global $CFG;
+							$newurl = str_replace(':','%3A', $url);
+							$newurl = str_replace('/','%2F', $newurl);
+							$newurl = str_replace('.','%2E', $newurl);
+							$newurl = str_replace('?','%3F', $newurl);
+							$newurl = str_replace('=','%3D', $newurl);
+							$newurl = $CFG->wwwroot.'/pdf.js-gh-pages/web/viewer.html?file='.$newurl;
+							//ShadowBox
+							$output .= html_writer::link($newurl, $activitylink, array('title'=>'Click text to pop-up PDF','rel' => 'shadowbox[Mixed]','onclick' => $onclick)).
+							$groupinglabel;
+						}
+			}
+			else {
+                    $output .= html_writer::link($url, $activitylink, array('class' => $linkclasses, 'onclick' => $onclick)) .
+                    $groupinglabel;
+			}
+			/* End of Frankie code */
+        } else {
+            // We may be displaying this just in order to show information
+            // about visibility, without the actual link ($mod->uservisible)
+            $output .= html_writer::tag('div', $activitylink, array('class' => $textclasses)) .
+                    $groupinglabel;
+        }
+        return $output;
+    }
+/*    public function course_section_cm_name(cm_info $mod, $displayoptions = array()) {
         global $CFG;
         $output = '';
         if (!$mod->uservisible && empty($mod->availableinfo)) {
             // nothing to be displayed to the user
             return $output;
         }
         $url = $mod->url;
         if (!$url) {
             return $output;
         }
         //Accessibility: for files get description via icon, this is very ugly hack!
         $instancename = $mod->get_formatted_name();
         $altname = $mod->modfullname;
         // Avoid unnecessary duplication: if e.g. a forum name already
         // includes the word forum (or Forum, etc) then it is unhelpful
         // to include that in the accessible description that is added.
         if (false !== strpos(core_text::strtolower($instancename),
                 core_text::strtolower($altname))) {
             $altname = '';
         }
         // File type after name, for alphabetic lists (screen reader).
         if ($altname) {
             $altname = get_accesshide(' '.$altname);
         }
         // For items which are hidden but available to current user
         // ($mod->uservisible), we show those as dimmed only if the user has
         // viewhiddenactivities, so that teachers see 'items which might not
         // be available to some students' dimmed but students do not see 'item
         // which is actually available to current student' dimmed.
         $linkclasses = '';
         $accesstext = '';
         $textclasses = '';
         if ($mod->uservisible) {
             $conditionalhidden = $this->is_cm_conditionally_hidden($mod);
             $accessiblebutdim = (!$mod->visible || $conditionalhidden) &&
                 has_capability('moodle/course:viewhiddenactivities', $mod->context);
             if ($accessiblebutdim) {
                 $linkclasses .= ' dimmed';
                 $textclasses .= ' dimmed_text';
                 if ($conditionalhidden) {
                     $linkclasses .= ' conditionalhidden';
                     $textclasses .= ' conditionalhidden';
                 }
                 // Show accessibility note only if user can access the module himself.
                 $accesstext = get_accesshide(get_string('hiddenfromstudents').':'. $mod->modfullname);
             }
         } else {
             $linkclasses .= ' dimmed';
             $textclasses .= ' dimmed_text';
         }
         // Get on-click attribute value if specified and decode the onclick - it
         // has already been encoded for display (puke).
         $onclick = htmlspecialchars_decode($mod->onclick, ENT_QUOTES);
         $groupinglabel = $mod->get_grouping_label($textclasses);
         // Display link itself.
         $activitylink = html_writer::empty_tag('img', array('src' => $mod->get_icon_url(),
                 'class' => 'iconlarge activityicon', 'alt' => ' ', 'role' => 'presentation')) . $accesstext .
                 html_writer::tag('span', $instancename . $altname, array('class' => 'instancename'));
         if ($mod->uservisible) {
             $output .= html_writer::link($url, $activitylink, array('class' => $linkclasses, 'onclick' => $onclick)) .
                     $groupinglabel;
         } else {
             // We may be displaying this just in order to show information
             // about visibility, without the actual link ($mod->uservisible)
             $output .= html_writer::tag('div', $activitylink, array('class' => $textclasses)) .
                     $groupinglabel;
         }
         return $output;
     }
+*/
     /**
      * 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->availableinfo)) {
             // nothing to be displayed to the user
             return $output;
         }
         $content = $mod->get_formatted_content(array('overflowdiv' => true, 'noclean' => true));
         $accesstext = '';
         $textclasses = '';
         if ($mod->uservisible) {
             $conditionalhidden = $this->is_cm_conditionally_hidden($mod);
             $accessiblebutdim = (!$mod->visible || $conditionalhidden) &&
                 has_capability('moodle/course:viewhiddenactivities', $mod->context);
             if ($accessiblebutdim) {
                 $textclasses .= ' dimmed_text';
                 if ($conditionalhidden) {
                     $textclasses .= ' conditionalhidden';
                 }
                 // Show accessibility note only if user can access the module himself.
                 $accesstext = get_accesshide(get_string('hiddenfromstudents').':'. $mod->modfullname);
             }
         } else {
             $textclasses .= ' dimmed_text';
         }
         if ($mod->url) {
             if ($content) {
                 // If specified, display extra content after link.
                 $output = html_writer::tag('div', $content, array('class' =>
                         trim('contentafterlink ' . $textclasses)));
             }
         } else {
             $groupinglabel = $mod->get_grouping_label($textclasses);
             // No link, so display only content.
             $output = html_writer::tag('div', $accesstext . $content . $groupinglabel,
                     array('class' => 'contentwithoutlink ' . $textclasses));
         }
         return $output;
     }
     /**
      * Renders HTML to show course module availability information (for someone who isn't allowed
      * to see the activity itself, or for staff)
      *
      * @param cm_info $mod
      * @param array $displayoptions
      * @return string
      */
     public function course_section_cm_availability(cm_info $mod, $displayoptions = array()) {
         global $CFG;
         if (!$mod->uservisible) {
             // this is a student who is not allowed to see the module but might be allowed
             // to see availability info (i.e. "Available from ...")
             if (!empty($mod->availableinfo)) {
                 $formattedinfo = \core_availability\info::format_info(
                         $mod->availableinfo, $mod->get_course());
                 $output = html_writer::tag('div', $formattedinfo, array('class' => 'availabilityinfo'));
             }
             return $output;
         }
         // this is a teacher who is allowed to see module but still should see the
         // information that module is not available to all/some students
         $modcontext = context_module::instance($mod->id);
         $canviewhidden = has_capability('moodle/course:viewhiddenactivities', $modcontext);
         if ($canviewhidden && !empty($CFG->enableavailability)) {
             // Don't add availability information if user is not editing and activity is hidden.
             if ($mod->visible || $this->page->user_is_editing()) {
                 $hidinfoclass = '';
                 if (!$mod->visible) {
                     $hidinfoclass = 'hide';
                 }
                 $ci = new \core_availability\info_module($mod);
                 $fullinfo = $ci->get_full_information();
                 if ($fullinfo) {
                     $formattedinfo = \core_availability\info::format_info(
                             $fullinfo, $mod->get_course());
                     return html_writer::div($formattedinfo, 'availabilityinfo ' . $hidinfoclass);
                 }
             }
         }
         return '';
     }
     /**
      * Renders HTML to display one course module for display within a section.
      *
      * This function calls:
      * {@link core_course_renderer::course_section_cm()}
      *
      * @param stdClass $course
      * @param completion_info $completioninfo
      * @param cm_info $mod
      * @param int|null $sectionreturn
      * @param array $displayoptions
      * @return String
      */
     public function course_section_cm_list_item($course, &$completioninfo, cm_info $mod, $sectionreturn, $displayoptions = array()) {
         $output = '';
         if ($modulehtml = $this->course_section_cm($course, $completioninfo, $mod, $sectionreturn, $displayoptions)) {
             $modclasses = 'activity ' . $mod->modname . ' modtype_' . $mod->modname . ' ' . $mod->extraclasses;
             $output .= html_writer::tag('li', $modulehtml, array('class' => $modclasses, 'id' => 'module-' . $mod->id));
         }
         return $output;
     }
     /**
      * Renders HTML to display one course module in a course section
      *
      * This includes link, content, availability, completion info and additional information
      * that module type wants to display (i.e. number of unread forum posts)
      *
      * This function calls:
      * {@link core_course_renderer::course_section_cm_name()}
      * {@link core_course_renderer::course_section_cm_text()}
      * {@link core_course_renderer::course_section_cm_availability()}
      * {@link core_course_renderer::course_section_cm_completion()}
      * {@link course_get_cm_edit_actions()}
      * {@link core_course_renderer::course_section_cm_edit_actions()}
      *
      * @param stdClass $course
      * @param completion_info $completioninfo
      * @param cm_info $mod
      * @param int|null $sectionreturn
      * @param array $displayoptions
      * @return string
      */
     public function course_section_cm($course, &$completioninfo, cm_info $mod, $sectionreturn, $displayoptions = array()) {
         $output = '';
         // We return empty string (because course module will not be displayed at all)
         // if:
         // 1) The activity is not visible to users
         // and
         // 2) The 'availableinfo' is empty, i.e. the activity was
         //     hidden in a way that leaves no info, such as using the
         //     eye icon.
         if (!$mod->uservisible && empty($mod->availableinfo)) {
             return $output;
         }
         $indentclasses = 'mod-indent';
         if (!empty($mod->indent)) {
             $indentclasses .= ' mod-indent-'.$mod->indent;
             if ($mod->indent > 15) {
                 $indentclasses .= ' mod-indent-huge';
             }
         }
         $output .= html_writer::start_tag('div');
         if ($this->page->user_is_editing()) {
             $output .= course_get_cm_move($mod, $sectionreturn);
         }
         $output .= html_writer::start_tag('div', array('class' => 'mod-indent-outer'));
         // This div is used to indent the content.
         $output .= html_writer::div('', $indentclasses);
         // Start a wrapper for the actual content to keep the indentation consistent
         $output .= html_writer::start_tag('div');
         // Display the link to the module (or do nothing if module has no url)
         $cmname = $this->course_section_cm_name($mod, $displayoptions);
         if (!empty($cmname)) {
             // Start the div for the activity title, excluding the edit icons.
             $output .= html_writer::start_tag('div', array('class' => 'activityinstance'));
             $output .= $cmname;
             if ($this->page->user_is_editing()) {
                 $output .= ' ' . course_get_cm_rename_action($mod, $sectionreturn);
             }
             // Module can put text after the link (e.g. forum unread)
             $output .= $mod->afterlink;
             // Closing the tag which contains everything but edit icons. Content part of the module should not be part of this.
             $output .= html_writer::end_tag('div'); // .activityinstance
         }
         // If there is content but NO link (eg label), then display the
         // content here (BEFORE any icons). In this case cons must be
         // displayed after the content so that it makes more sense visually
         // and for accessibility reasons, e.g. if you have a one-line label
         // it should work similarly (at least in terms of ordering) to an
         // activity.
         $contentpart = $this->course_section_cm_text($mod, $displayoptions);
         $url = $mod->url;
         if (empty($url)) {
             $output .= $contentpart;
         }
         $modicons = '';
         if ($this->page->user_is_editing()) {
             $editactions = course_get_cm_edit_actions($mod, $mod->indent, $sectionreturn);
             $modicons .= ' '. $this->course_section_cm_edit_actions($editactions, $mod, $displayoptions);
             $modicons .= $mod->afterediticons;
         }
         $modicons .= $this->course_section_cm_completion($course, $completioninfo, $mod, $displayoptions);
         if (!empty($modicons)) {
             $output .= html_writer::span($modicons, 'actions');
         }
         // If there is content AND a link, then display the content here
         // (AFTER any icons). Otherwise it was displayed before
         if (!empty($url)) {
             $output .= $contentpart;
         }
         // show availability info (if module is not available)
         $output .= $this->course_section_cm_availability($mod, $displayoptions);
         $output .= html_writer::end_tag('div'); // $indentclasses
         // End of indentation div.
         $output .= html_writer::end_tag('div');
         $output .= html_writer::end_tag('div');
         return $output;
     }
     /**
      * Renders HTML to display a list of course modules in a course section
      * Also displays "move here" controls in Javascript-disabled mode
      *
      * This function calls {@link core_course_renderer::course_section_cm()}
      *
      * @param stdClass $course course object
      * @param int|stdClass|section_info $section relative section number or section object
      * @param int $sectionreturn section number to return to
      * @param int $displayoptions
      * @return void
      */
     public function course_section_cm_list($course, $section, $sectionreturn = null, $displayoptions = array()) {
         global $USER;
         $output = '';
         $modinfo = get_fast_modinfo($course);
         if (is_object($section)) {
             $section = $modinfo->get_section_info($section->section);
         } else {
             $section = $modinfo->get_section_info($section);
         }
         $completioninfo = new completion_info($course);
         // check if we are currently in the process of moving a module with JavaScript disabled
         $ismoving = $this->page->user_is_editing() && ismoving($course->id);
         if ($ismoving) {
             $movingpix = new pix_icon('movehere', get_string('movehere'), 'moodle', array('class' => 'movetarget'));
             $strmovefull = strip_tags(get_string("movefull", "", "'$USER->activitycopyname'"));
         }
         // Get the list of modules visible to user (excluding the module being moved if there is one)
         $moduleshtml = array();
         if (!empty($modinfo->sections[$section->section])) {
             foreach ($modinfo->sections[$section->section] as $modnumber) {
                 $mod = $modinfo->cms[$modnumber];
                 if ($ismoving and $mod->id == $USER->activitycopy) {
                     // do not display moving mod
                     continue;
                 }
                 if ($modulehtml = $this->course_section_cm_list_item($course,
                         $completioninfo, $mod, $sectionreturn, $displayoptions)) {
                     $moduleshtml[$modnumber] = $modulehtml;
                 }
             }
         }
         $sectionoutput = '';
         if (!empty($moduleshtml) || $ismoving) {
             foreach ($moduleshtml as $modnumber => $modulehtml) {
                 if ($ismoving) {
                     $movingurl = new moodle_url('/course/mod.php', array('moveto' => $modnumber, 'sesskey' => sesskey()));
                     $sectionoutput .= html_writer::tag('li',
                             html_writer::link($movingurl, $this->output->render($movingpix), array('title' => $strmovefull)),
                             array('class' => 'movehere'));
                 }
                 $sectionoutput .= $modulehtml;
             }
             if ($ismoving) {
                 $movingurl = new moodle_url('/course/mod.php', array('movetosection' => $section->id, 'sesskey' => sesskey()));
                 $sectionoutput .= html_writer::tag('li',
                         html_writer::link($movingurl, $this->output->render($movingpix), array('title' => $strmovefull)),
                         array('class' => 'movehere'));
             }
         }
         // Always output the section module list.
         $output .= html_writer::tag('ul', $sectionoutput, array('class' => 'section img-text'));
         return $output;
     }
     /**
      * Displays a custom list of courses with paging bar if necessary
      *
      * If $paginationurl is specified but $totalcount is not, the link 'View more'
      * appears under the list.
      *
      * If both $paginationurl and $totalcount are specified, and $totalcount is
      * bigger than count($courses), a paging bar is displayed above and under the
      * courses list.
      *
      * @param array $courses array of course records (or instances of course_in_list) to show on this page
      * @param bool $showcategoryname whether to add category name to the course description
      * @param string $additionalclasses additional CSS classes to add to the div.courses
      * @param moodle_url $paginationurl url to view more or url to form links to the other pages in paging bar
      * @param int $totalcount total number of courses on all pages, if omitted $paginationurl will be displayed as 'View more' link
      * @param int $page current page number (defaults to 0 referring to the first page)
      * @param int $perpage number of records per page (defaults to $CFG->coursesperpage)
      * @return string
      */
     public function courses_list($courses, $showcategoryname = false, $additionalclasses = null, $paginationurl = null, $totalcount = null, $page = 0, $perpage = null) {
         global $CFG;
         // create instance of coursecat_helper to pass display options to function rendering courses list
         $chelper = new coursecat_helper();
         if ($showcategoryname) {
             $chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_EXPANDED_WITH_CAT);
         } else {
             $chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_EXPANDED);
         }
         if ($totalcount !== null && $paginationurl !== null) {
             // add options to display pagination
             if ($perpage === null) {
                 $perpage = $CFG->coursesperpage;
             }
             $chelper->set_courses_display_options(array(
                 'limit' => $perpage,
                 'offset' => ((int)$page) * $perpage,
                 'paginationurl' => $paginationurl,
             ));
         } else if ($paginationurl !== null) {
             // add options to display 'View more' link
             $chelper->set_courses_display_options(array('viewmoreurl' => $paginationurl));
             $totalcount = count($courses) + 1; // has to be bigger than count($courses) otherwise link will not be displayed
         }
         $chelper->set_attributes(array('class' => $additionalclasses));
         $content = $this->coursecat_courses($chelper, $courses, $totalcount);
         return $content;
     }
     /**
      * Displays one course in the list of courses.
      *
      * This is an internal function, to display an information about just one course
      * please use {@link core_course_renderer::course_info_box()}
      *
      * @param coursecat_helper $chelper various display options
      * @param course_in_list|stdClass $course
      * @param string $additionalclasses additional classes to add to the main <div> tag (usually
      *    depend on the course position in list - first/last/even/odd)
      * @return string
      */
     protected function coursecat_coursebox(coursecat_helper $chelper, $course, $additionalclasses = '') {
         global $CFG;
         if (!isset($this->strings->summary)) {
             $this->strings->summary = get_string('summary');
         }
         if ($chelper->get_show_courses() <= self::COURSECAT_SHOW_COURSES_COUNT) {
             return '';
         }
         if ($course instanceof stdClass) {
             require_once($CFG->libdir. '/coursecatlib.php');
             $course = new course_in_list($course);
         }
         $content = '';
         $classes = trim('coursebox clearfix '. $additionalclasses);
         if ($chelper->get_show_courses() >= self::COURSECAT_SHOW_COURSES_EXPANDED) {
             $nametag = 'h3';
         } else {
             $classes .= ' collapsed';
             $nametag = 'div';
         }
         // .coursebox
         $content .= html_writer::start_tag('div', array(
             'class' => $classes,
             'data-courseid' => $course->id,
             'data-type' => self::COURSECAT_TYPE_COURSE,
         ));
         $content .= html_writer::start_tag('div', array('class' => 'info'));
         // course name
         $coursename = $chelper->get_course_formatted_name($course);
         $coursenamelink = html_writer::link(new moodle_url('/course/view.php', array('id' => $course->id)),
                                             $coursename, array('class' => $course->visible ? '' : 'dimmed'));
         $content .= html_writer::tag($nametag, $coursenamelink, array('class' => 'coursename'));
         // If we display course in collapsed form but the course has summary or course contacts, display the link to the info page.
         $content .= html_writer::start_tag('div', array('class' => 'moreinfo'));
         if ($chelper->get_show_courses() < self::COURSECAT_SHOW_COURSES_EXPANDED) {
             if ($course->has_summary() || $course->has_course_contacts() || $course->has_course_overviewfiles()) {
                 $url = new moodle_url('/course/info.php', array('id' => $course->id));
                 $image = html_writer::empty_tag('img', array('src' => $this->output->pix_url('i/info'),
                     'alt' => $this->strings->summary));
                 $content .= html_writer::link($url, $image, array('title' => $this->strings->summary));
                 // Make sure JS file to expand course content is included.
                 $this->coursecat_include_js();
             }
         }
         $content .= html_writer::end_tag('div'); // .moreinfo
         // print enrolmenticons
         if ($icons = enrol_get_course_info_icons($course)) {
             $content .= html_writer::start_tag('div', array('class' => 'enrolmenticons'));
             foreach ($icons as $pix_icon) {
                 $content .= $this->render($pix_icon);
             }
             $content .= html_writer::end_tag('div'); // .enrolmenticons
         }
         $content .= html_writer::end_tag('div'); // .info
         $content .= html_writer::start_tag('div', array('class' => 'content'));
         $content .= $this->coursecat_coursebox_content($chelper, $course);
         $content .= html_writer::end_tag('div'); // .content
         $content .= html_writer::end_tag('div'); // .coursebox
         return $content;
     }
     /**
      * Returns HTML to display course content (summary, course contacts and optionally category name)
      *
      * This method is called from coursecat_coursebox() and may be re-used in AJAX
      *
      * @param coursecat_helper $chelper various display options
      * @param stdClass|course_in_list $course
      * @return string
      */
     protected function coursecat_coursebox_content(coursecat_helper $chelper, $course) {
         global $CFG;
         if ($chelper->get_show_courses() < self::COURSECAT_SHOW_COURSES_EXPANDED) {
             return '';
         }
         if ($course instanceof stdClass) {
             require_once($CFG->libdir. '/coursecatlib.php');
             $course = new course_in_list($course);
         }
         $content = '';
         // display course summary
         if ($course->has_summary()) {
             $content .= html_writer::start_tag('div', array('class' => 'summary'));
             $content .= $chelper->get_course_formatted_summary($course,
                     array('overflowdiv' => true, 'noclean' => true, 'para' => false));
             $content .= html_writer::end_tag('div'); // .summary
         }
         // display course overview files
         $contentimages = $contentfiles = '';
         foreach ($course->get_course_overviewfiles() as $file) {
             $isimage = $file->is_valid_image();
             $url = file_encode_url("$CFG->wwwroot/pluginfile.php",
                     '/'. $file->get_contextid(). '/'. $file->get_component(). '/'.
                     $file->get_filearea(). $file->get_filepath(). $file->get_filename(), !$isimage);
             if ($isimage) {
                 $contentimages .= html_writer::tag('div',
                         html_writer::empty_tag('img', array('src' => $url)),
                         array('class' => 'courseimage'));
             } else {
                 $image = $this->output->pix_icon(file_file_icon($file, 24), $file->get_filename(), 'moodle');
                 $filename = html_writer::tag('span', $image, array('class' => 'fp-icon')).
                         html_writer::tag('span', $file->get_filename(), array('class' => 'fp-filename'));
                 $contentfiles .= html_writer::tag('span',
                         html_writer::link($url, $filename),
                         array('class' => 'coursefile fp-filename-icon'));
             }
         }
         $content .= $contentimages. $contentfiles;
         // display course contacts. See course_in_list::get_course_contacts()
         if ($course->has_course_contacts()) {
             $content .= html_writer::start_tag('ul', array('class' => 'teachers'));
             foreach ($course->get_course_contacts() as $userid => $coursecontact) {
                 $name = $coursecontact['rolename'].': '.
                         html_writer::link(new moodle_url('/user/view.php',
                                 array('id' => $userid, 'course' => SITEID)),
                             $coursecontact['username']);
                 $content .= html_writer::tag('li', $name);
             }
             $content .= html_writer::end_tag('ul'); // .teachers
         }
         // display course category if necessary (for example in search results)
         if ($chelper->get_show_courses() == self::COURSECAT_SHOW_COURSES_EXPANDED_WITH_CAT) {
             require_once($CFG->libdir. '/coursecatlib.php');
             if ($cat = coursecat::get($course->category, IGNORE_MISSING)) {
                 $content .= html_writer::start_tag('div', array('class' => 'coursecat'));
                 $content .= get_string('category').': '.
                         html_writer::link(new moodle_url('/course/index.php', array('categoryid' => $cat->id)),
                                 $cat->get_formatted_name(), array('class' => $cat->visible ? '' : 'dimmed'));
                 $content .= html_writer::end_tag('div'); // .coursecat
             }
         }
         return $content;
     }
     /**
      * Renders the list of courses
      *
      * This is internal function, please use {@link core_course_renderer::courses_list()} or another public
      * method from outside of the class
      *
      * If list of courses is specified in $courses; the argument $chelper is only used
      * to retrieve display options and attributes, only methods get_show_courses(),
      * get_courses_display_option() and get_and_erase_attributes() are called.
      *
      * @param coursecat_helper $chelper various display options
      * @param array $courses the list of courses to display
      * @param int|null $totalcount total number of courses (affects display mode if it is AUTO or pagination if applicable),
      *     defaulted to count($courses)
      * @return string
      */
     protected function coursecat_courses(coursecat_helper $chelper, $courses, $totalcount = null) {
         global $CFG;
         if ($totalcount === null) {
             $totalcount = count($courses);
         }
         if (!$totalcount) {
             // Courses count is cached during courses retrieval.
             return '';
         }
         if ($chelper->get_show_courses() == self::COURSECAT_SHOW_COURSES_AUTO) {
             // In 'auto' course display mode we analyse if number of courses is more or less than $CFG->courseswithsummarieslimit
             if ($totalcount <= $CFG->courseswithsummarieslimit) {
                 $chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_EXPANDED);
             } else {
                 $chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_COLLAPSED);
             }
         }
         // prepare content of paging bar if it is needed
         $paginationurl = $chelper->get_courses_display_option('paginationurl');
         $paginationallowall = $chelper->get_courses_display_option('paginationallowall');
         if ($totalcount > count($courses)) {
             // there are more results that can fit on one page
             if ($paginationurl) {
                 // the option paginationurl was specified, display pagingbar
                 $perpage = $chelper->get_courses_display_option('limit', $CFG->coursesperpage);
                 $page = $chelper->get_courses_display_option('offset') / $perpage;
                 $pagingbar = $this->paging_bar($totalcount, $page, $perpage,
                         $paginationurl->out(false, array('perpage' => $perpage)));
                 if ($paginationallowall) {
                     $pagingbar .= html_writer::tag('div', html_writer::link($paginationurl->out(false, array('perpage' => 'all')),
                             get_string('showall', '', $totalcount)), array('class' => 'paging paging-showall'));
                 }
             } else if ($viewmoreurl = $chelper->get_courses_display_option('viewmoreurl')) {
                 // the option for 'View more' link was specified, display more link
                 $viewmoretext = $chelper->get_courses_display_option('viewmoretext', new lang_string('viewmore'));
                 $morelink = html_writer::tag('div', html_writer::link($viewmoreurl, $viewmoretext),
                         array('class' => 'paging paging-morelink'));
             }
         } else if (($totalcount > $CFG->coursesperpage) && $paginationurl && $paginationallowall) {
             // there are more than one page of results and we are in 'view all' mode, suggest to go back to paginated view mode
             $pagingbar = html_writer::tag('div', html_writer::link($paginationurl->out(false, array('perpage' => $CFG->coursesperpage)),
                 get_string('showperpage', '', $CFG->coursesperpage)), array('class' => 'paging paging-showperpage'));
         }
         // display list of courses
         $attributes = $chelper->get_and_erase_attributes('courses');
         $content = html_writer::start_tag('div', $attributes);
         if (!empty($pagingbar)) {
             $content .= $pagingbar;
         }
         $coursecount = 0;
         foreach ($courses as $course) {
             $coursecount ++;
             $classes = ($coursecount%2) ? 'odd' : 'even';
             if ($coursecount == 1) {
                 $classes .= ' first';
             }
             if ($coursecount >= count($courses)) {
                 $classes .= ' last';
             }
             $content .= $this->coursecat_coursebox($chelper, $course, $classes);
         }
         if (!empty($pagingbar)) {
             $content .= $pagingbar;
         }
         if (!empty($morelink)) {
             $content .= $morelink;
         }
         $content .= html_writer::end_tag('div'); // .courses
         return $content;
     }
     /**
      * Renders the list of subcategories in a category
      *
      * @param coursecat_helper $chelper various display options
      * @param coursecat $coursecat
      * @param int $depth depth of the category in the current tree
      * @return string
      */
     protected function coursecat_subcategories(coursecat_helper $chelper, $coursecat, $depth) {
         global $CFG;
         $subcategories = array();
         if (!$chelper->get_categories_display_option('nodisplay')) {
             $subcategories = $coursecat->get_children($chelper->get_categories_display_options());
         }
         $totalcount = $coursecat->get_children_count();
         if (!$totalcount) {
             // Note that we call coursecat::get_children_count() AFTER coursecat::get_children() to avoid extra DB requests.
             // Categories count is cached during children categories retrieval.
             return '';
         }
         // prepare content of paging bar or more link if it is needed
         $paginationurl = $chelper->get_categories_display_option('paginationurl');
         $paginationallowall = $chelper->get_categories_display_option('paginationallowall');
         if ($totalcount > count($subcategories)) {
             if ($paginationurl) {
                 // the option 'paginationurl was specified, display pagingbar
                 $perpage = $chelper->get_categories_display_option('limit', $CFG->coursesperpage);
                 $page = $chelper->get_categories_display_option('offset') / $perpage;
                 $pagingbar = $this->paging_bar($totalcount, $page, $perpage,
                         $paginationurl->out(false, array('perpage' => $perpage)));
                 if ($paginationallowall) {
                     $pagingbar .= html_writer::tag('div', html_writer::link($paginationurl->out(false, array('perpage' => 'all')),
                             get_string('showall', '', $totalcount)), array('class' => 'paging paging-showall'));
                 }
             } else if ($viewmoreurl = $chelper->get_categories_display_option('viewmoreurl')) {
                 // the option 'viewmoreurl' was specified, display more link (if it is link to category view page, add category id)
                 if ($viewmoreurl->compare(new moodle_url('/course/index.php'), URL_MATCH_BASE)) {
                     $viewmoreurl->param('categoryid', $coursecat->id);
                 }
                 $viewmoretext = $chelper->get_categories_display_option('viewmoretext', new lang_string('viewmore'));
                 $morelink = html_writer::tag('div', html_writer::link($viewmoreurl, $viewmoretext),
                         array('class' => 'paging paging-morelink'));
             }
         } else if (($totalcount > $CFG->coursesperpage) && $paginationurl && $paginationallowall) {
             // there are more than one page of results and we are in 'view all' mode, suggest to go back to paginated view mode
             $pagingbar = html_writer::tag('div', html_writer::link($paginationurl->out(false, array('perpage' => $CFG->coursesperpage)),
                 get_string('showperpage', '', $CFG->coursesperpage)), array('class' => 'paging paging-showperpage'));
         }
         // display list of subcategories
         $content = html_writer::start_tag('div', array('class' => 'subcategories'));
         if (!empty($pagingbar)) {
             $content .= $pagingbar;
         }
         foreach ($subcategories as $subcategory) {
             $content .= $this->coursecat_category($chelper, $subcategory, $depth + 1);
         }
         if (!empty($pagingbar)) {
             $content .= $pagingbar;
         }
         if (!empty($morelink)) {
             $content .= $morelink;
         }
         $content .= html_writer::end_tag('div');
         return $content;
     }
     /**
      * Make sure that javascript file for AJAX expanding of courses and categories content is included
      */
     protected function coursecat_include_js() {
         if (!$this->page->requires->should_create_one_time_item_now('core_course_categoryexpanderjsinit')) {
             return;
         }
         // We must only load this module once.
         $this->page->requires->yui_module('moodle-course-categoryexpander',
                 'Y.Moodle.course.categoryexpander.init');
     }
     /**
      * Returns HTML to display the subcategories and courses in the given category
      *
      * This method is re-used by AJAX to expand content of not loaded category
      *
      * @param coursecat_helper $chelper various display options
      * @param coursecat $coursecat
      * @param int $depth depth of the category in the current tree
      * @return string
      */
     protected function coursecat_category_content(coursecat_helper $chelper, $coursecat, $depth) {
         $content = '';
         // Subcategories
         $content .= $this->coursecat_subcategories($chelper, $coursecat, $depth);
         // AUTO show courses: Courses will be shown expanded if this is not nested category,
         // and number of courses no bigger than $CFG->courseswithsummarieslimit.
         $showcoursesauto = $chelper->get_show_courses() == self::COURSECAT_SHOW_COURSES_AUTO;
         if ($showcoursesauto && $depth) {
             // this is definitely collapsed mode
             $chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_COLLAPSED);
         }
         // Courses
         if ($chelper->get_show_courses() > core_course_renderer::COURSECAT_SHOW_COURSES_COUNT) {
             $courses = array();
             if (!$chelper->get_courses_display_option('nodisplay')) {
                 $courses = $coursecat->get_courses($chelper->get_courses_display_options());
             }
             if ($viewmoreurl = $chelper->get_courses_display_option('viewmoreurl')) {
                 // the option for 'View more' link was specified, display more link (if it is link to category view page, add category id)
                 if ($viewmoreurl->compare(new moodle_url('/course/index.php'), URL_MATCH_BASE)) {
                     $chelper->set_courses_display_option('viewmoreurl', new moodle_url($viewmoreurl, array('categoryid' => $coursecat->id)));
                 }
             }
             $content .= $this->coursecat_courses($chelper, $courses, $coursecat->get_courses_count());
         }
         if ($showcoursesauto) {
             // restore the show_courses back to AUTO
             $chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_AUTO);
         }
         return $content;
     }
     /**
      * Returns HTML to display a course category as a part of a tree
      *
      * This is an internal function, to display a particular category and all its contents
      * use {@link core_course_renderer::course_category()}
      *
      * @param coursecat_helper $chelper various display options
      * @param coursecat $coursecat
      * @param int $depth depth of this category in the current tree
      * @return string
      */
     protected function coursecat_category(coursecat_helper $chelper, $coursecat, $depth) {
         // open category tag
         $classes = array('category');
         if (empty($coursecat->visible)) {