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<?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;
/**
* Whether a category content is being initially rendered with children. This is mainly used by the
* core_course_renderer::corsecat_tree() to render the appropriate action for the Expand/Collapse all link on
* page load.
* @var bool
*/
protected $categoryexpandedonload = false;
/**
* 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);
}
/**
* @deprecated since 3.2
*/
protected function add_modchoosertoggle() {
throw new coding_exception('core_course_renderer::add_modchoosertoggle() can not be used anymore.');
}
/**
* Renders course info box.
*
* @param stdClass $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 '';
}
/**
* Render a modchooser.
*
* @param renderable $modchooser The chooser.
* @return string
*/
public function render_modchooser(renderable $modchooser) {
return $this->render_from_template('core_course/modchooser', $modchooser->export_for_template($this));
}
/**
* 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 '';
}
$modchooser = new \core_course\output\modchooser($course, $modules);
return $this->render($modchooser);
}
/**
* 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) {
debugging('Method core_course_renderer::course_modchooser_module_types() is deprecated, ' .
'see core_course_renderer::render_modchooser().', DEBUG_DEVELOPER);
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, $classes = array('option')) {
debugging('Method core_course_renderer::course_modchooser_module() is deprecated, ' .
'see core_course_renderer::render_modchooser().', DEBUG_DEVELOPER);
return '';
}
protected function course_modchooser_title($title, $identifier = null) {
debugging('Method core_course_renderer::course_modchooser_title() is deprecated, ' .
'see core_course_renderer::render_modchooser().', DEBUG_DEVELOPER);
return '';
}
/**
* 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);
$menu->set_menu_trigger(get_string('edit'));
foreach ($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
*
* @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) {
$activityclass = MOD_CLASS_ACTIVITY;
if ($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 $format display format - 'plain' (default), 'short' or 'navbar'
* @return string
*/
public function course_search_form($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;
}
$data = new stdClass();
$data->searchurl = \core_search\manager::get_course_search_url()->out(false);
$data->id = $formid;
$data->inputid = $inputid;
$data->inputsize = $inputsize;
$data->value = $value;
$data->areaids = 'core_course-course';
if ($format != 'navbar') {
$helpicon = new \help_icon('coursesearch', 'core');
$data->helpicon = $helpicon->export_for_template($this);
}
return $this->render_from_template('core_course/course_search_form', $data);
}
/**
* 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, $DB, $USER;
$output = '';
$istrackeduser = $completioninfo->is_tracked_user($USER->id);
$isediting = $this->page->user_is_editing();
if (!empty($displayoptions['hidecompletion']) || !isloggedin() || isguestuser() || !$mod->uservisible) {
return $output;
}
if ($completioninfo === null) {
$completioninfo = new completion_info($course);
}
$completion = $completioninfo->is_enabled($mod);
if ($completion == COMPLETION_TRACKING_NONE) {
if ($isediting) {
$output .= html_writer::span(' ', 'filler');
}
return $output;
}
$completionicon = '';
if ($isediting || !$istrackeduser) {
switch ($completion) {
case COMPLETION_TRACKING_MANUAL :
$completionicon = 'manual-enabled'; break;
case COMPLETION_TRACKING_AUTOMATIC :
$completionicon = 'auto-enabled'; break;
}
} else {
$completiondata = $completioninfo->get_data($mod, true);
if ($completion == COMPLETION_TRACKING_MANUAL) {
switch($completiondata->completionstate) {
case COMPLETION_INCOMPLETE:
$completionicon = 'manual-n' . ($completiondata->overrideby ? '-override' : '');
break;
case COMPLETION_COMPLETE:
$completionicon = 'manual-y' . ($completiondata->overrideby ? '-override' : '');
break;
}
} else { // Automatic
switch($completiondata->completionstate) {
case COMPLETION_INCOMPLETE:
$completionicon = 'auto-n' . ($completiondata->overrideby ? '-override' : '');
break;
case COMPLETION_COMPLETE:
$completionicon = 'auto-y' . ($completiondata->overrideby ? '-override' : '');
break;
case COMPLETION_COMPLETE_PASS:
$completionicon = 'auto-pass'; break;
case COMPLETION_COMPLETE_FAIL:
$completionicon = 'auto-fail'; break;
}
}
}
if ($completionicon) {
$formattedname = html_entity_decode($mod->get_formatted_name(), ENT_QUOTES, 'UTF-8');
if (!$isediting && $istrackeduser && $completiondata->overrideby) {
$args = new stdClass();
$args->modname = $formattedname;
$overridebyuser = \core_user::get_user($completiondata->overrideby, '*', MUST_EXIST);
$args->overrideuser = fullname($overridebyuser);
$imgalt = get_string('completion-alt-' . $completionicon, 'completion', $args);
} else {
$imgalt = get_string('completion-alt-' . $completionicon, 'completion', $formattedname);
}
if ($isediting || !$istrackeduser || !has_capability('moodle/course:togglecompletion', $mod->context)) {
// 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) {
$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' => $formattedname));
$output .= html_writer::empty_tag('input', array(
'type' => 'hidden', 'name' => 'completionstate', 'value' => $newstate));
$output .= html_writer::tag('button',
$this->output->pix_icon('i/completion-' . $completionicon, $imgalt),
array('class' => 'btn btn-link', 'aria-live' => 'assertive'));
$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, $displayoptions = array()) {
if (!$mod->is_visible_on_course_page() || !$mod->url) {
// Nothing to be displayed to the user.
return '';
}
list($linkclasses, $textclasses) = $this->course_section_cm_classes($mod);
$groupinglabel = $mod->get_grouping_label($textclasses);
// Render element that allows to edit activity name inline. It calls {@link course_section_cm_name_title()}
// to get the display title of the activity.
$tmpl = new \core_course\output\course_module_name($mod, $this->page->user_is_editing(), $displayoptions);
return $this->output->render_from_template('core/inplace_editable', $tmpl->export_for_template($this->output)) .
$groupinglabel;
}
/**
* Returns the CSS classes for the activity name/content
*
* For items which are hidden, unavailable or stealth but should be displayed
* to current user ($mod->is_visible_on_course_page()), we show those as dimmed.
* Students will also see as dimmed activities names that are not yet available
* but should still be displayed (without link) with availability info.
*
* @param cm_info $mod
* @return array array of two elements ($linkclasses, $textclasses)
*/
protected function course_section_cm_classes(cm_info $mod) {
$linkclasses = '';
$textclasses = '';
if ($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';
$textclasses .= ' conditionalhidden';
}
}
if ($mod->is_stealth()) {
// Stealth activity is the one that is not visible on course page.
// It still may be displayed to the users who can manage it.
$linkclasses .= ' stealth';
$textclasses .= ' stealth';
}
} else {
$linkclasses .= ' dimmed';
$textclasses .= ' dimmed dimmed_text';
}
return array($linkclasses, $textclasses);
}
/**
* 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_title(cm_info $mod, $displayoptions = array()) {
$output = '';
$url = $mod->url;
if (!$mod->is_visible_on_course_page() || !$url) {
// Nothing to be displayed to the user.
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);
}
list($linkclasses, $textclasses) = $this->course_section_cm_classes($mod);
// 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);
// Display link itself.
$activitylink = html_writer::empty_tag('img', array('src' => $mod->get_icon_url(),
'class' => 'iconlarge activityicon', 'alt' => '', 'role' => 'presentation', 'aria-hidden' => 'true')) .
html_writer::tag('span', $instancename . $altname, array('class' => 'instancename'));
if ($mod->uservisible) {
$output .= html_writer::link($url, $activitylink, array('class' => $linkclasses, 'onclick' => $onclick));
} else {
// We may be displaying this just in order to show information
// about visibility, without the actual link ($mod->is_visible_on_course_page()).
$output .= html_writer::tag('div', $activitylink, array('class' => $textclasses));
}
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->is_visible_on_course_page()) {
// nothing to be displayed to the user
return $output;
}
$content = $mod->get_formatted_content(array('overflowdiv' => true, 'noclean' => true));
list($linkclasses, $textclasses) = $this->course_section_cm_classes($mod);
if ($mod->url && $mod->uservisible) {
if ($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', $content . $groupinglabel,
array('class' => 'contentwithoutlink ' . $textclasses));
}
return $output;
}
/**
* Displays availability info for a course section or course module
*
* @param string $text
* @param string $additionalclasses
* @return string
*/
public function availability_info($text, $additionalclasses = '') {
$data = ['text' => $text, 'classes' => $additionalclasses];
$additionalclasses = array_filter(explode(' ', $additionalclasses));
if (in_array('ishidden', $additionalclasses)) {
$data['ishidden'] = 1;
} else if (in_array('isstealth', $additionalclasses)) {
$data['isstealth'] = 1;
} else if (in_array('isrestricted', $additionalclasses)) {
$data['isrestricted'] = 1;
if (in_array('isfullinfo', $additionalclasses)) {
$data['isfullinfo'] = 1;
}
}
return $this->render_from_template('core/availability_info', $data);
}
/**
* 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;
$output = '';
if (!$mod->is_visible_on_course_page()) {
return $output;
}
if (!$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 = $this->availability_info($formattedinfo, 'isrestricted');
}
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 && !$mod->visible) {
// This module is hidden but current user has capability to see it.
// Do not display the availability info if the whole section is hidden.
if ($mod->get_section_info()->visible) {
$output .= $this->availability_info(get_string('hiddenfromstudents'), 'ishidden');
}
} else if ($mod->is_stealth()) {
// This module is available but is normally not displayed on the course page
// (this user can see it because they can manage it).
$output .= $this->availability_info(get_string('hiddenoncoursepage'), 'isstealth');
}
if ($canviewhidden && !empty($CFG->enableavailability)) {
// Display information about conditional availability.
// Don't add availability information if user is not editing and activity is hidden.
if ($mod->visible || $this->page->user_is_editing()) {
$hidinfoclass = 'isrestricted isfullinfo';
if (!$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());
$output .= $this->availability_info($formattedinfo, $hidinfoclass);
}
}
}
return $output;
}
/**
* 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->is_visible_on_course_page()) {
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;
// 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');
}
// Show availability info (if module is not available).
$output .= $this->course_section_cm_availability($mod, $displayoptions);
// If there is content AND a link, then display the content here
// (AFTER any icons). Otherwise it was displayed before
if (!empty($url)) {
$output .= $contentpart;
}
$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;
}
/**
* Message displayed to the user when they try to access unavailable activity following URL
*
* This method is a very simplified version of {@link course_section_cm()} to be part of the error
* notification only. It also does not check if module is visible on course page or not.
*
* The message will be displayed inside notification!
*
* @param cm_info $cm
* @return string
*/
public function course_section_cm_unavailable_error_message(cm_info $cm) {
if ($cm->uservisible) {
return null;
}
if (!$cm->availableinfo) {
return get_string('activityiscurrentlyhidden');
}
$altname = get_accesshide(' ' . $cm->modfullname);
$name = html_writer::empty_tag('img', array('src' => $cm->get_icon_url(),
'class' => 'iconlarge activityicon', 'alt' => ' ', 'role' => 'presentation')) .
html_writer::tag('span', ' '.$cm->get_formatted_name() . $altname, array('class' => 'instancename'));
$formattedinfo = \core_availability\info::format_info($cm->availableinfo, $cm->get_course());
return html_writer::div($name, 'activityinstance-error') .
html_writer::div($formattedinfo, 'availabilityinfo-error');
}
/**
* 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 core_course_list_element) 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 core_course_list_element|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, $additionalclasses = '') {
if (!isset($this->strings->summary)) {
$this->strings->summary = get_string('summary');
}
if ($chelper->get_show_courses() <= self::COURSECAT_SHOW_COURSES_COUNT) {
return '';
}
if ($course instanceof stdClass) {
$course = new core_course_list_element($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()
|| $course->has_custom_fields()) {
$url = new moodle_url('/course/info.php', array('id' => $course->id));
$image = $this->output->pix_icon('i/info', $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|core_course_list_element $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) {
$course = new core_course_list_element($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. $contentfiles;
// Display course contacts. See core_course_list_element::get_course_contacts().
if ($course->has_course_contacts()) {
$content .= html_writer::start_tag('ul', array('class' => 'teachers'));
foreach ($course->get_course_contacts() as $coursecontact) {
$rolenames = array_map(function ($role) {
return $role->displayname;
}, $coursecontact['roles']);
$name = implode(", ", $rolenames).': '.
html_writer::link(new moodle_url('/user/view.php',
array('id' => $coursecontact['user']->id, '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) {
if ($cat = core_course_category::get($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'));
$content .= html_writer::end_tag('div'); // .coursecat
}
}
// Display custom fields.
if ($course->has_custom_fields()) {
$handler = core_course\customfield\course_handler::create();
$customfields = $handler->display_custom_fields_data($course->get_custom_fields());
$content .= \html_writer::tag('div', $customfields, ['class' => 'customfields-container']);
}
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 core_course_category $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 core_course_category::get_children_count() AFTER core_course_category::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 core_course_category $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 core_course_category $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)) {
$classes[] = 'dimmed_category';
}
if ($chelper->get_subcat_depth() > 0 && $depth >= $chelper->get_subcat_depth()) {
// do not load content
$categorycontent = '';
$classes[] = 'notloaded';
if ($coursecat->get_children_count() ||
($chelper->get_show_courses() >= self::COURSECAT_SHOW_COURSES_COLLAPSED && $coursecat->get_courses_count())) {
$classes[] = 'with_children';
$classes[] = 'collapsed';
}
} else {
// load category content
$categorycontent = $this->coursecat_category_content($chelper, $coursecat, $depth);
$classes[] = 'loaded';
if (!empty($categorycontent)) {
$classes[] = 'with_children';
// Category content loaded with children.
$this->categoryexpandedonload = true;
}
}
// Make sure JS file to expand category content is included.
$this->coursecat_include_js();
$content = html_writer::start_tag('div', array(
'class' => join(' ', $classes),
'data-categoryid' => $coursecat->id,
'data-depth' => $depth,
'data-showcourses' => $chelper->get_show_courses(),
'data-type' => self::COURSECAT_TYPE_CATEGORY,
));
// category name
$categoryname = $coursecat->get_formatted_name();
$categoryname = html_writer::link(new moodle_url('/course/index.php',
array('categoryid' => $coursecat->id)),
$categoryname);
if ($chelper->get_show_courses() == self::COURSECAT_SHOW_COURSES_COUNT
&& ($coursescount = $coursecat->get_courses_count())) {
$categoryname .= html_writer::tag('span', ' ('. $coursescount.')',
array('title' => get_string('numberofcourses'), 'class' => 'numberofcourse'));
}
$content .= html_writer::start_tag('div', array('class' => 'info'));
$content .= html_writer::tag(($depth > 1) ? 'h4' : 'h3', $categoryname, array('class' => 'categoryname'));
$content .= html_writer::end_tag('div'); // .info
// add category content to the output
$content .= html_writer::tag('div', $categorycontent, array('class' => 'content'));
$content .= html_writer::end_tag('div'); // .category
// Return the course category tree HTML
return $content;
}
/**
* Returns HTML to display a tree of subcategories and courses in the given category
*
* @param coursecat_helper $chelper various display options
* @param core_course_category $coursecat top category (this category's name and description will NOT be added to the tree)
* @return string
*/
protected function coursecat_tree(coursecat_helper $chelper, $coursecat) {
// Reset the category expanded flag for this course category tree first.
$this->categoryexpandedonload = false;
$categorycontent = $this->coursecat_category_content($chelper, $coursecat, 0);
if (empty($categorycontent)) {
return '';
}
// Start content generation
$content = '';
$attributes = $chelper->get_and_erase_attributes('course_category_tree clearfix');
$content .= html_writer::start_tag('div', $attributes);
if ($coursecat->get_children_count()) {
$classes = array(
'collapseexpand',
);
// Check if the category content contains subcategories with children's content loaded.
if ($this->categoryexpandedonload) {
$classes[] = 'collapse-all';
$linkname = get_string('collapseall');
} else {
$linkname = get_string('expandall');
}
// Only show the collapse/expand if there are children to expand.
$content .= html_writer::start_tag('div', array('class' => 'collapsible-actions'));
$content .= html_writer::link('#', $linkname, array('class' => implode(' ', $classes)));
$content .= html_writer::end_tag('div');
$this->page->requires->strings_for_js(array('collapseall', 'expandall'), 'moodle');
}
$content .= html_writer::tag('div', $categorycontent, array('class' => 'content'));
$content .= html_writer::end_tag('div'); // .course_category_tree
return $content;
}
/**
* Renders HTML to display particular course category - list of it's subcategories and courses
*
* Invoked from /course/index.php
*
* @param int|stdClass|core_course_category $category
*/
public function course_category($category) {
global $CFG;
$usertop = core_course_category::user_top();
if (empty($category)) {
$coursecat = $usertop;
} else if (is_object($category) && $category instanceof core_course_category) {
$coursecat = $category;
} else {
$coursecat = core_course_category::get(is_object($category) ? $category->id : $category);
}
$site = get_site();
$output = '';
if ($coursecat->can_create_course() || $coursecat->has_manage_capability()) {
// Add 'Manage' button if user has permissions to edit this category.
$managebutton = $this->single_button(new moodle_url('/course/management.php',
array('categoryid' => $coursecat->id)), get_string('managecourses'), 'get');
$this->page->set_button($managebutton);
}
if (core_course_category::is_simple_site()) {
// There is only one category in the system, do not display link to it.
$strfulllistofcourses = get_string('fulllistofcourses');
$this->page->set_title("$site->shortname: $strfulllistofcourses");
} else if (!$coursecat->id || !$coursecat->is_uservisible()) {
$strcategories = get_string('categories');
$this->page->set_title("$site->shortname: $strcategories");
} else {
$strfulllistofcourses = get_string('fulllistofcourses');
$this->page->set_title("$site->shortname: $strfulllistofcourses");
// Print the category selector
$categorieslist = core_course_category::make_categories_list();
if (count($categorieslist) > 1) {
$output .= html_writer::start_tag('div', array('class' => 'categorypicker'));
$select = new single_select(new moodle_url('/course/index.php'), 'categoryid',
core_course_category::make_categories_list(), $coursecat->id, null, 'switchcategory');
$select->set_label(get_string('categories').':');
$output .= $this->render($select);
$output .= html_writer::end_tag('div'); // .categorypicker
}
}
// Print current category description
$chelper = new coursecat_helper();
if ($description = $chelper->get_category_formatted_description($coursecat)) {
$output .= $this->box($description, array('class' => 'generalbox info'));
}
// Prepare parameters for courses and categories lists in the tree
$chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_AUTO)
->set_attributes(array('class' => 'category-browse category-browse-'.$coursecat->id));
$coursedisplayoptions = array();
$catdisplayoptions = array();
$browse = optional_param('browse', null, PARAM_ALPHA);
$perpage = optional_param('perpage', $CFG->coursesperpage, PARAM_INT);
$page = optional_param('page', 0, PARAM_INT);
$baseurl = new moodle_url('/course/index.php');
if ($coursecat->id) {
$baseurl->param('categoryid', $coursecat->id);
}
if ($perpage != $CFG->coursesperpage) {
$baseurl->param('perpage', $perpage);
}
$coursedisplayoptions['limit'] = $perpage;
$catdisplayoptions['limit'] = $perpage;
if ($browse === 'courses' || !$coursecat->get_children_count()) {
$coursedisplayoptions['offset'] = $page * $perpage;
$coursedisplayoptions['paginationurl'] = new moodle_url($baseurl, array('browse' => 'courses'));
$catdisplayoptions['nodisplay'] = true;
$catdisplayoptions['viewmoreurl'] = new moodle_url($baseurl, array('browse' => 'categories'));
$catdisplayoptions['viewmoretext'] = new lang_string('viewallsubcategories');
} else if ($browse === 'categories' || !$coursecat->get_courses_count()) {
$coursedisplayoptions['nodisplay'] = true;
$catdisplayoptions['offset'] = $page * $perpage;
$catdisplayoptions['paginationurl'] = new moodle_url($baseurl, array('browse' => 'categories'));
$coursedisplayoptions['viewmoreurl'] = new moodle_url($baseurl, array('browse' => 'courses'));
$coursedisplayoptions['viewmoretext'] = new lang_string('viewallcourses');
} else {
// we have a category that has both subcategories and courses, display pagination separately
$coursedisplayoptions['viewmoreurl'] = new moodle_url($baseurl, array('browse' => 'courses', 'page' => 1));
$catdisplayoptions['viewmoreurl'] = new moodle_url($baseurl, array('browse' => 'categories', 'page' => 1));
}
$chelper->set_courses_display_options($coursedisplayoptions)->set_categories_display_options($catdisplayoptions);
// Add course search form.
$output .= $this->course_search_form();
// Display course category tree.
$output .= $this->coursecat_tree($chelper, $coursecat);
// Add action buttons
$output .= $this->container_start('buttons');
if ($coursecat->is_uservisible()) {
$context = get_category_or_system_context($coursecat->id);
if (has_capability('moodle/course:create', $context)) {
// Print link to create a new course, for the 1st available category.
if ($coursecat->id) {
$url = new moodle_url('/course/edit.php', array('category' => $coursecat->id, 'returnto' => 'category'));
} else {
$url = new moodle_url('/course/edit.php',
array('category' => $CFG->defaultrequestcategory, 'returnto' => 'topcat'));
}
$output .= $this->single_button($url, get_string('addnewcourse'), 'get');
}
ob_start();
print_course_request_buttons($context);
$output .= ob_get_contents();
ob_end_clean();
}
$output .= $this->container_end();
return $output;
}
/**
* Serves requests to /course/category.ajax.php
*
* In this renderer implementation it may expand the category content or
* course content.
*
* @return string
* @throws coding_exception
*/
public function coursecat_ajax() {
global $DB, $CFG;
$type = required_param('type', PARAM_INT);
if ($type === self::COURSECAT_TYPE_CATEGORY) {
// This is a request for a category list of some kind.
$categoryid = required_param('categoryid', PARAM_INT);
$showcourses = required_param('showcourses', PARAM_INT);
$depth = required_param('depth', PARAM_INT);
$category = core_course_category::get($categoryid);
$chelper = new coursecat_helper();
$baseurl = new moodle_url('/course/index.php', array('categoryid' => $categoryid));
$coursedisplayoptions = array(
'limit' => $CFG->coursesperpage,
'viewmoreurl' => new moodle_url($baseurl, array('browse' => 'courses', 'page' => 1))
);
$catdisplayoptions = array(
'limit' => $CFG->coursesperpage,
'viewmoreurl' => new moodle_url($baseurl, array('browse' => 'categories', 'page' => 1))
);
$chelper->set_show_courses($showcourses)->
set_courses_display_options($coursedisplayoptions)->
set_categories_display_options($catdisplayoptions);
return $this->coursecat_category_content($chelper, $category, $depth);
} else if ($type === self::COURSECAT_TYPE_COURSE) {
// This is a request for the course information.
$courseid = required_param('courseid', PARAM_INT);
$course = $DB->get_record('course', array('id' => $courseid), '*', MUST_EXIST);
$chelper = new coursecat_helper();
$chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_EXPANDED);
return $this->coursecat_coursebox_content($chelper, $course);
} else {
throw new coding_exception('Invalid request type');
}
}
/**
* Renders html to display search result page
*
* @param array $searchcriteria may contain elements: search, blocklist, modulelist, tagid
* @return string
*/
public function search_courses($searchcriteria) {
global $CFG;
$content = '';
if (!empty($searchcriteria)) {
// print search results
$displayoptions = array('sort' => array('displayname' => 1));
// take the current page and number of results per page from query
$perpage = optional_param('perpage', 0, PARAM_RAW);
if ($perpage !== 'all') {
$displayoptions['limit'] = ((int)$perpage <= 0) ? $CFG->coursesperpage : (int)$perpage;
$page = optional_param('page', 0, PARAM_INT);
$displayoptions['offset'] = $displayoptions['limit'] * $page;
}
// options 'paginationurl' and 'paginationallowall' are only used in method coursecat_courses()
$displayoptions['paginationurl'] = new moodle_url('/course/search.php', $searchcriteria);
$displayoptions['paginationallowall'] = true; // allow adding link 'View all'
$class = 'course-search-result';
foreach ($searchcriteria as $key => $value) {
if (!empty($value)) {
$class .= ' course-search-result-'. $key;
}
}
$chelper = new coursecat_helper();
$chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_EXPANDED_WITH_CAT)->
set_courses_display_options($displayoptions)->
set_search_criteria($searchcriteria)->
set_attributes(array('class' => $class));
$courses = core_course_category::search_courses($searchcriteria, $chelper->get_courses_display_options());
$totalcount = core_course_category::search_courses_count($searchcriteria);
$courseslist = $this->coursecat_courses($chelper, $courses, $totalcount);
if (!$totalcount) {
if (!empty($searchcriteria['search'])) {
$content .= $this->heading(get_string('nocoursesfound', '', $searchcriteria['search']));
} else {
$content .= $this->heading(get_string('novalidcourses'));
}
} else {
$content .= $this->heading(get_string('searchresults'). ": $totalcount");
$content .= $courseslist;
}
if (!empty($searchcriteria['search'])) {
// print search form only if there was a search by search string, otherwise it is confusing
$content .= $this->box_start('generalbox mdl-align');
$content .= $this->course_search_form($searchcriteria['search']);
$content .= $this->box_end();
}
} else {
// just print search form
$content .= $this->box_start('generalbox mdl-align');
$content .= $this->course_search_form();
$content .= $this->box_end();
}
return $content;
}
/**
* Renders html to print list of courses tagged with particular tag
*
* @param int $tagid id of the tag
* @param bool $exclusivemode if set to true it means that no other entities tagged with this tag
* are displayed on the page and the per-page limit may be bigger
* @param int $fromctx context id where the link was displayed, may be used by callbacks
* to display items in the same context first
* @param int $ctx context id where to search for records
* @param bool $rec search in subcontexts as well
* @param array $displayoptions
* @return string empty string if no courses are marked with this tag or rendered list of courses
*/
public function tagged_courses($tagid, $exclusivemode = true, $ctx = 0, $rec = true, $displayoptions = null) {
global $CFG;
if (empty($displayoptions)) {
$displayoptions = array();
}
$showcategories = !core_course_category::is_simple_site();
$displayoptions += array('limit' => $CFG->coursesperpage, 'offset' => 0);
$chelper = new coursecat_helper();
$searchcriteria = array('tagid' => $tagid, 'ctx' => $ctx, 'rec' => $rec);
$chelper->set_show_courses($showcategories ? self::COURSECAT_SHOW_COURSES_EXPANDED_WITH_CAT :
self::COURSECAT_SHOW_COURSES_EXPANDED)->
set_search_criteria($searchcriteria)->
set_courses_display_options($displayoptions)->
set_attributes(array('class' => 'course-search-result course-search-result-tagid'));
// (we set the same css class as in search results by tagid)
if ($totalcount = core_course_category::search_courses_count($searchcriteria)) {
$courses = core_course_category::search_courses($searchcriteria, $chelper->get_courses_display_options());
if ($exclusivemode) {
return $this->coursecat_courses($chelper, $courses, $totalcount);
} else {
$tagfeed = new core_tag\output\tagfeed();
$img = $this->output->pix_icon('i/course', '');
foreach ($courses as $course) {
$url = course_get_url($course);
$imgwithlink = html_writer::link($url, $img);
$coursename = html_writer::link($url, $course->get_formatted_name());
$details = '';
if ($showcategories && ($cat = core_course_category::get($course->category, IGNORE_MISSING))) {
$details = 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'));
}
$tagfeed->add($imgwithlink, $coursename, $details);
}
return $this->output->render_from_template('core_tag/tagfeed', $tagfeed->export_for_template($this->output));
}
}
return '';
}
/**
* Returns HTML to display one remote course
*
* @param stdClass $course remote course information, contains properties:
id, remoteid, shortname, fullname, hostid, summary, summaryformat, cat_name, hostname
* @return string
*/
protected function frontpage_remote_course(stdClass $course) {
$url = new moodle_url('/auth/mnet/jump.php', array(
'hostid' => $course->hostid,
'wantsurl' => '/course/view.php?id='. $course->remoteid
));
$output = '';
$output .= html_writer::start_tag('div', array('class' => 'coursebox remotecoursebox clearfix'));
$output .= html_writer::start_tag('div', array('class' => 'info'));
$output .= html_writer::start_tag('h3', array('class' => 'name'));
$output .= html_writer::link($url, format_string($course->fullname), array('title' => get_string('entercourse')));
$output .= html_writer::end_tag('h3'); // .name
$output .= html_writer::tag('div', '', array('class' => 'moreinfo'));
$output .= html_writer::end_tag('div'); // .info
$output .= html_writer::start_tag('div', array('class' => 'content'));
$output .= html_writer::start_tag('div', array('class' => 'summary'));
$options = new stdClass();
$options->noclean = true;
$options->para = false;
$options->overflowdiv = true;
$output .= format_text($course->summary, $course->summaryformat, $options);
$output .= html_writer::end_tag('div'); // .summary
$addinfo = format_string($course->hostname) . ' : '
. format_string($course->cat_name) . ' : '
. format_string($course->shortname);
$output .= html_writer::tag('div', $addinfo, array('class' => 'remotecourseinfo'));
$output .= html_writer::end_tag('div'); // .content
$output .= html_writer::end_tag('div'); // .coursebox
return $output;
}
/**
* Returns HTML to display one remote host
*
* @param array $host host information, contains properties: name, url, count
* @return string
*/
protected function frontpage_remote_host($host) {
$output = '';
$output .= html_writer::start_tag('div', array('class' => 'coursebox remotehost clearfix'));
$output .= html_writer::start_tag('div', array('class' => 'info'));
$output .= html_writer::start_tag('h3', array('class' => 'name'));
$output .= html_writer::link($host['url'], s($host['name']), array('title' => s($host['name'])));
$output .= html_writer::end_tag('h3'); // .name
$output .= html_writer::tag('div', '', array('class' => 'moreinfo'));
$output .= html_writer::end_tag('div'); // .info
$output .= html_writer::start_tag('div', array('class' => 'content'));
$output .= html_writer::start_tag('div', array('class' => 'summary'));
$output .= $host['count'] . ' ' . get_string('courses');
$output .= html_writer::end_tag('div'); // .content
$output .= html_writer::end_tag('div'); // .coursebox
return $output;
}
/**
* Returns HTML to print list of courses user is enrolled to for the frontpage
*
* Also lists remote courses or remote hosts if MNET authorisation is used
*
* @return string
*/
public function frontpage_my_courses() {
global $USER, $CFG, $DB;
if (!isloggedin() or isguestuser()) {
return '';
}
$output = '';
$courses = enrol_get_my_courses('summary, summaryformat');
$rhosts = array();
$rcourses = array();
if (!empty($CFG->mnet_dispatcher_mode) && $CFG->mnet_dispatcher_mode==='strict') {
$rcourses = get_my_remotecourses($USER->id);
$rhosts = get_my_remotehosts();
}
if (!empty($courses) || !empty($rcourses) || !empty($rhosts)) {
$chelper = new coursecat_helper();
$totalcount = count($courses);
if (count($courses) > $CFG->frontpagecourselimit) {
// There are more enrolled courses than we can display, display link to 'My courses'.
$courses = array_slice($courses, 0, $CFG->frontpagecourselimit, true);
$chelper->set_courses_display_options(array(
'viewmoreurl' => new moodle_url('/my/'),
'viewmoretext' => new lang_string('mycourses')
));
} else if (core_course_category::top()->is_uservisible()) {
// All enrolled courses are displayed, display link to 'All courses' if there are more courses in system.
$chelper->set_courses_display_options(array(
'viewmoreurl' => new moodle_url('/course/index.php'),
'viewmoretext' => new lang_string('fulllistofcourses')
));
$totalcount = $DB->count_records('course') - 1;
}
$chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_EXPANDED)->
set_attributes(array('class' => 'frontpage-course-list-enrolled'));
$output .= $this->coursecat_courses($chelper, $courses, $totalcount);
// MNET
if (!empty($rcourses)) {
// at the IDP, we know of all the remote courses
$output .= html_writer::start_tag('div', array('class' => 'courses'));
foreach ($rcourses as $course) {
$output .= $this->frontpage_remote_course($course);
}
$output .= html_writer::end_tag('div'); // .courses
} elseif (!empty($rhosts)) {
// non-IDP, we know of all the remote servers, but not courses
$output .= html_writer::start_tag('div', array('class' => 'courses'));
foreach ($rhosts as $host) {
$output .= $this->frontpage_remote_host($host);
}
$output .= html_writer::end_tag('div'); // .courses
}
}
return $output;
}
/**
* Returns HTML to print list of available courses for the frontpage
*
* @return string
*/
public function frontpage_available_courses() {
global $CFG;
$chelper = new coursecat_helper();
$chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_EXPANDED)->
set_courses_display_options(array(
'recursive' => true,
'limit' => $CFG->frontpagecourselimit,
'viewmoreurl' => new moodle_url('/course/index.php'),
'viewmoretext' => new lang_string('fulllistofcourses')));
$chelper->set_attributes(array('class' => 'frontpage-course-list-all'));
$courses = core_course_category::top()->get_courses($chelper->get_courses_display_options());
$totalcount = core_course_category::top()->get_courses_count($chelper->get_courses_display_options());
if (!$totalcount && !$this->page->user_is_editing() && has_capability('moodle/course:create', context_system::instance())) {
// Print link to create a new course, for the 1st available category.
return $this->add_new_course_button();
}
return $this->coursecat_courses($chelper, $courses, $totalcount);
}
/**
* Returns HTML to the "add new course" button for the page
*
* @return string
*/
public function add_new_course_button() {
global $CFG;
// Print link to create a new course, for the 1st available category.
$output = $this->container_start('buttons');
$url = new moodle_url('/course/edit.php', array('category' => $CFG->defaultrequestcategory, 'returnto' => 'topcat'));
$output .= $this->single_button($url, get_string('addnewcourse'), 'get');
$output .= $this->container_end('buttons');
return $output;
}
/**
* Returns HTML to print tree with course categories and courses for the frontpage
*
* @return string
*/
public function frontpage_combo_list() {
global $CFG;
// TODO MDL-10965 improve.
$tree = core_course_category::top();
if (!$tree->get_children_count()) {
return '';
}
$chelper = new coursecat_helper();
$chelper->set_subcat_depth($CFG->maxcategorydepth)->
set_categories_display_options(array(
'limit' => $CFG->coursesperpage,
'viewmoreurl' => new moodle_url('/course/index.php',
array('browse' => 'categories', 'page' => 1))
))->
set_courses_display_options(array(
'limit' => $CFG->coursesperpage,
'viewmoreurl' => new moodle_url('/course/index.php',
array('browse' => 'courses', 'page' => 1))
))->
set_attributes(array('class' => 'frontpage-category-combo'));
return $this->coursecat_tree($chelper, $tree);
}
/**
* Returns HTML to print tree of course categories (with number of courses) for the frontpage
*
* @return string
*/
public function frontpage_categories_list() {
global $CFG;
// TODO MDL-10965 improve.
$tree = core_course_category::top();
if (!$tree->get_children_count()) {
return '';
}
$chelper = new coursecat_helper();
$chelper->set_subcat_depth($CFG->maxcategorydepth)->
set_show_courses(self::COURSECAT_SHOW_COURSES_COUNT)->
set_categories_display_options(array(
'limit' => $CFG->coursesperpage,
'viewmoreurl' => new moodle_url('/course/index.php',
array('browse' => 'categories', 'page' => 1))
))->
set_attributes(array('class' => 'frontpage-category-names'));
return $this->coursecat_tree($chelper, $tree);
}
/**
* Renders the activity navigation.
*
* Defer to template.
*
* @param \core_course\output\activity_navigation $page
* @return string html for the page
*/
public function render_activity_navigation(\core_course\output\activity_navigation $page) {
$data = $page->export_for_template($this->output);
return $this->output->render_from_template('core_course/activity_navigation', $data);
}
/**
* Display waiting information about backup size during uploading backup process
* @param object $backupfile the backup stored_file
* @return $html string
*/
public function sendingbackupinfo($backupfile) {
$sizeinfo = new stdClass();
$sizeinfo->total = number_format($backupfile->get_filesize() / 1000000, 2);
$html = html_writer::tag('div', get_string('sendingsize', 'hub', $sizeinfo),
array('class' => 'courseuploadtextinfo'));
return $html;
}
/**
* Hub information (logo - name - description - link)
* @param object $hubinfo
* @return string html code
*/
public function hubinfo($hubinfo) {
$screenshothtml = html_writer::empty_tag('img',
array('src' => $hubinfo['imgurl'], 'alt' => $hubinfo['name']));
$hubdescription = html_writer::tag('div', $screenshothtml,
array('class' => 'hubscreenshot'));
$hubdescription .= html_writer::tag('a', $hubinfo['name'],
array('class' => 'hublink', 'href' => $hubinfo['url'],
'onclick' => 'this.target="_blank"'));
$hubdescription .= html_writer::tag('div', format_text($hubinfo['description'], FORMAT_PLAIN),
array('class' => 'hubdescription'));
$hubdescription = html_writer::tag('div', $hubdescription, array('class' => 'hubinfo clearfix'));
return $hubdescription;
}
/**
* Output frontpage summary text and frontpage modules (stored as section 1 in site course)
*
* This may be disabled in settings
*
* @return string
*/
public function frontpage_section1() {
global $SITE, $USER;
$output = '';
$editing = $this->page->user_is_editing();
if ($editing) {
// Make sure section with number 1 exists.
course_create_sections_if_missing($SITE, 1);
}
$modinfo = get_fast_modinfo($SITE);
$section = $modinfo->get_section_info(1);
if (($section && (!empty($modinfo->sections[1]) or !empty($section->summary))) or $editing) {
$output .= $this->box_start('generalbox sitetopic');
// If currently moving a file then show the current clipboard.
if (ismoving($SITE->id)) {
$stractivityclipboard = strip_tags(get_string('activityclipboard', '', $USER->activitycopyname));
$output .= '<p><font size="2">';
$cancelcopyurl = new moodle_url('/course/mod.php', ['cancelcopy' => 'true', 'sesskey' => sesskey()]);
$output .= "$stractivityclipboard (" . html_writer::link($cancelcopyurl, get_string('cancel')) .')';
$output .= '</font></p>';
}
$context = context_course::instance(SITEID);
// If the section name is set we show it.
if (trim($section->name) !== '') {
$output .= $this->heading(
format_string($section->name, true, array('context' => $context)),
2,
'sectionname'
);
}
$summarytext = file_rewrite_pluginfile_urls($section->summary,
'pluginfile.php',
$context->id,
'course',
'section',
$section->id);
$summaryformatoptions = new stdClass();
$summaryformatoptions->noclean = true;
$summaryformatoptions->overflowdiv = true;
$output .= format_text($summarytext, $section->summaryformat, $summaryformatoptions);
if ($editing && has_capability('moodle/course:update', $context)) {
$streditsummary = get_string('editsummary');
$editsectionurl = new moodle_url('/course/editsection.php', ['id' => $section->id]);
$output .= html_writer::link($editsectionurl, $this->pix_icon('t/edit', $streditsummary)) .
"<br /><br />";
}
$output .= $this->course_section_cm_list($SITE, $section);
$output .= $this->course_section_add_cm_control($SITE, $section->section);
$output .= $this->box_end();
}
return $output;
}
/**
* Output news for the frontpage (extract from site-wide news forum)
*
* @param stdClass $forum record from db table 'forum' that represents the site news forum
* @return string
*/
protected function frontpage_news($forum) {
global $CFG, $SITE, $SESSION, $USER;
require_once($CFG->dirroot .'/mod/forum/lib.php');
$output = '';
if (isloggedin()) {
$SESSION->fromdiscussion = $CFG->wwwroot;
$subtext = '';
if (\mod_forum\subscriptions::is_subscribed($USER->id, $forum)) {
if (!\mod_forum\subscriptions::is_forcesubscribed($forum)) {
$subtext = get_string('unsubscribe', 'forum');
}
} else {
$subtext = get_string('subscribe', 'forum');
}
$suburl = new moodle_url('/mod/forum/subscribe.php', array('id' => $forum->id, 'sesskey' => sesskey()));
$output .= html_writer::tag('div', html_writer::link($suburl, $subtext), array('class' => 'subscribelink'));
}
$coursemodule = get_coursemodule_from_instance('forum', $forum->id);
$context = context_module::instance($coursemodule->id);
$entityfactory = mod_forum\local\container::get_entity_factory();
$forumentity = $entityfactory->get_forum_from_stdclass($forum, $context, $coursemodule, $SITE);
$rendererfactory = mod_forum\local\container::get_renderer_factory();
$discussionsrenderer = $rendererfactory->get_frontpage_news_discussion_list_renderer($forumentity);
$cm = \cm_info::create($coursemodule);
return $output . $discussionsrenderer->render($USER, $cm, null, null, 0, $SITE->newsitems);
}
/**
* Renders part of frontpage with a skip link (i.e. "My courses", "Site news", etc.)
*
* @param string $skipdivid
* @param string $contentsdivid
* @param string $header Header of the part
* @param string $contents Contents of the part
* @return string
*/
protected function frontpage_part($skipdivid, $contentsdivid, $header, $contents) {
if (strval($contents) === '') {
return '';
}
$output = html_writer::link('#' . $skipdivid,
get_string('skipa', 'access', core_text::strtolower(strip_tags($header))),
array('class' => 'skip-block skip'));
// Wrap frontpage part in div container.
$output .= html_writer::start_tag('div', array('id' => $contentsdivid));
$output .= $this->heading($header);
$output .= $contents;
// End frontpage part div container.
$output .= html_writer::end_tag('div');
$output .= html_writer::tag('span', '', array('class' => 'skip-block-to', 'id' => $skipdivid));
return $output;
}
/**
* Outputs contents for frontpage as configured in $CFG->frontpage or $CFG->frontpageloggedin
*
* @return string
*/
public function frontpage() {
global $CFG, $SITE;
$output = '';
if (isloggedin() and !isguestuser() and isset($CFG->frontpageloggedin)) {
$frontpagelayout = $CFG->frontpageloggedin;
} else {
$frontpagelayout = $CFG->frontpage;
}
foreach (explode(',', $frontpagelayout) as $v) {
switch ($v) {
// Display the main part of the front page.
case FRONTPAGENEWS:
if ($SITE->newsitems) {
// Print forums only when needed.
require_once($CFG->dirroot .'/mod/forum/lib.php');
if (($newsforum = forum_get_course_forum($SITE->id, 'news')) &&
($forumcontents = $this->frontpage_news($newsforum))) {
$newsforumcm = get_fast_modinfo($SITE)->instances['forum'][$newsforum->id];
$output .= $this->frontpage_part('skipsitenews', 'site-news-forum',
$newsforumcm->get_formatted_name(), $forumcontents);
}
}
break;
case FRONTPAGEENROLLEDCOURSELIST:
$mycourseshtml = $this->frontpage_my_courses();
if (!empty($mycourseshtml)) {
$output .= $this->frontpage_part('skipmycourses', 'frontpage-course-list',
get_string('mycourses'), $mycourseshtml);
}
break;
case FRONTPAGEALLCOURSELIST:
$availablecourseshtml = $this->frontpage_available_courses();
$output .= $this->frontpage_part('skipavailablecourses', 'frontpage-available-course-list',
get_string('availablecourses'), $availablecourseshtml);
break;
case FRONTPAGECATEGORYNAMES:
$output .= $this->frontpage_part('skipcategories', 'frontpage-category-names',
get_string('categories'), $this->frontpage_categories_list());
break;
case FRONTPAGECATEGORYCOMBO:
$output .= $this->frontpage_part('skipcourses', 'frontpage-category-combo',
get_string('courses'), $this->frontpage_combo_list());
break;
case FRONTPAGECOURSESEARCH:
$output .= $this->box($this->course_search_form('', 'short'), 'mdl-align');
break;
}
$output .= '<br />';
}
return $output;
}
}
/**
* Class storing display options and functions to help display course category and/or courses lists
*
* This is a wrapper for core_course_category objects that also stores display options
* and functions to retrieve sorted and paginated lists of categories/courses.
*
* If theme overrides methods in core_course_renderers that access this class
* it may as well not use this class at all or extend it.
*
* @package core
* @copyright 2013 Marina Glancy
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class coursecat_helper {
/** @var string [none, collapsed, expanded] how (if) display courses list */
protected $showcourses = 10; /* core_course_renderer::COURSECAT_SHOW_COURSES_COLLAPSED */
/** @var int depth to expand subcategories in the tree (deeper subcategories will be loaded by AJAX or proceed to category page by clicking on category name) */
protected $subcatdepth = 1;
/** @var array options to display courses list */
protected $coursesdisplayoptions = array();
/** @var array options to display subcategories list */
protected $categoriesdisplayoptions = array();
/** @var array additional HTML attributes */
protected $attributes = array();
/** @var array search criteria if the list is a search result */
protected $searchcriteria = null;
/**
* Sets how (if) to show the courses - none, collapsed, expanded, etc.
*
* @param int $showcourses SHOW_COURSES_NONE, SHOW_COURSES_COLLAPSED, SHOW_COURSES_EXPANDED, etc.
* @return coursecat_helper
*/
public function set_show_courses($showcourses) {
$this->showcourses = $showcourses;
// Automatically set the options to preload summary and coursecontacts for core_course_category::get_courses()
// and core_course_category::search_courses().
$this->coursesdisplayoptions['summary'] = $showcourses >= core_course_renderer::COURSECAT_SHOW_COURSES_AUTO;
$this->coursesdisplayoptions['coursecontacts'] = $showcourses >= core_course_renderer::COURSECAT_SHOW_COURSES_EXPANDED;
$this->coursesdisplayoptions['customfields'] = $showcourses >= core_course_renderer::COURSECAT_SHOW_COURSES_COLLAPSED;
return $this;
}
/**
* Returns how (if) to show the courses - none, collapsed, expanded, etc.
*
* @return int - COURSECAT_SHOW_COURSES_NONE, COURSECAT_SHOW_COURSES_COLLAPSED, COURSECAT_SHOW_COURSES_EXPANDED, etc.
*/
public function get_show_courses() {
return $this->showcourses;
}
/**
* Sets the maximum depth to expand subcategories in the tree
*
* deeper subcategories may be loaded by AJAX or proceed to category page by clicking on category name
*
* @param int $subcatdepth
* @return coursecat_helper
*/
public function set_subcat_depth($subcatdepth) {
$this->subcatdepth = $subcatdepth;
return $this;
}
/**
* Returns the maximum depth to expand subcategories in the tree
*
* deeper subcategories may be loaded by AJAX or proceed to category page by clicking on category name
*
* @return int
*/
public function get_subcat_depth() {
return $this->subcatdepth;
}
/**
* Sets options to display list of courses
*
* Options are later submitted as argument to core_course_category::get_courses() and/or core_course_category::search_courses()
*
* Options that core_course_category::get_courses() accept:
* - recursive - return courses from subcategories as well. Use with care,
* this may be a huge list!
* - summary - preloads fields 'summary' and 'summaryformat'
* - coursecontacts - preloads course contacts
* - customfields - preloads custom fields data
* - isenrolled - preloads indication whether this user is enrolled in the course
* - sort - list of fields to sort. Example
* array('idnumber' => 1, 'shortname' => 1, 'id' => -1)
* will sort by idnumber asc, shortname asc and id desc.
* Default: array('sortorder' => 1)
* Only cached fields may be used for sorting!
* - offset
* - limit - maximum number of children to return, 0 or null for no limit
*
* Options summary and coursecontacts are filled automatically in the set_show_courses()
*
* Also renderer can set here any additional options it wants to pass between renderer functions.
*
* @param array $options
* @return coursecat_helper
*/
public function set_courses_display_options($options) {
$this->coursesdisplayoptions = $options;
$this->set_show_courses($this->showcourses); // this will calculate special display options
return $this;
}
/**
* Sets one option to display list of courses
*
* @see coursecat_helper::set_courses_display_options()
*
* @param string $key
* @param mixed $value
* @return coursecat_helper
*/
public function set_courses_display_option($key, $value) {
$this->coursesdisplayoptions[$key] = $value;
return $this;
}
/**
* Return the specified option to display list of courses
*
* @param string $optionname option name
* @param mixed $defaultvalue default value for option if it is not specified
* @return mixed
*/
public function get_courses_display_option($optionname, $defaultvalue = null) {
if (array_key_exists($optionname, $this->coursesdisplayoptions)) {
return $this->coursesdisplayoptions[$optionname];
} else {
return $defaultvalue;
}
}
/**
* Returns all options to display the courses
*
* This array is usually passed to {@link core_course_category::get_courses()} or
* {@link core_course_category::search_courses()}
*
* @return array
*/
public function get_courses_display_options() {
return $this->coursesdisplayoptions;
}
/**
* Sets options to display list of subcategories
*
* Options 'sort', 'offset' and 'limit' are passed to core_course_category::get_children().
* Any other options may be used by renderer functions
*
* @param array $options
* @return coursecat_helper
*/
public function set_categories_display_options($options) {
$this->categoriesdisplayoptions = $options;
return $this;
}
/**
* Return the specified option to display list of subcategories
*
* @param string $optionname option name
* @param mixed $defaultvalue default value for option if it is not specified
* @return mixed
*/
public function get_categories_display_option($optionname, $defaultvalue = null) {
if (array_key_exists($optionname, $this->categoriesdisplayoptions)) {
return $this->categoriesdisplayoptions[$optionname];
} else {
return $defaultvalue;
}
}
/**
* Returns all options to display list of subcategories
*
* This array is usually passed to {@link core_course_category::get_children()}
*
* @return array
*/
public function get_categories_display_options() {
return $this->categoriesdisplayoptions;
}
/**
* Sets additional general options to pass between renderer functions, usually HTML attributes
*
* @param array $attributes
* @return coursecat_helper
*/
public function set_attributes($attributes) {
$this->attributes = $attributes;
return $this;
}
/**
* Return all attributes and erases them so they are not applied again
*
* @param string $classname adds additional class name to the beginning of $attributes['class']
* @return array
*/
public function get_and_erase_attributes($classname) {
$attributes = $this->attributes;
$this->attributes = array();
if (empty($attributes['class'])) {
$attributes['class'] = '';
}
$attributes['class'] = $classname . ' '. $attributes['class'];
return $attributes;
}
/**
* Sets the search criteria if the course is a search result
*
* Search string will be used to highlight terms in course name and description
*
* @param array $searchcriteria
* @return coursecat_helper
*/
public function set_search_criteria($searchcriteria) {
$this->searchcriteria = $searchcriteria;
return $this;
}
/**
* Returns formatted and filtered description of the given category
*
* @param core_course_category $coursecat category
* @param stdClass|array $options format options, by default [noclean,overflowdiv],
* if context is not specified it will be added automatically
* @return string|null
*/
public function get_category_formatted_description($coursecat, $options = null) {
if ($coursecat->id && $coursecat->is_uservisible() && !empty($coursecat->description)) {
if (!isset($coursecat->descriptionformat)) {
$descriptionformat = FORMAT_MOODLE;
} else {
$descriptionformat = $coursecat->descriptionformat;
}
if ($options === null) {
$options = array('noclean' => true, 'overflowdiv' => true);
} else {
$options = (array)$options;
}
$context = context_coursecat::instance($coursecat->id);
if (!isset($options['context'])) {
$options['context'] = $context;
}
$text = file_rewrite_pluginfile_urls($coursecat->description,
'pluginfile.php', $context->id, 'coursecat', 'description', null);
return format_text($text, $descriptionformat, $options);
}
return null;
}
/**
* Returns given course's summary with proper embedded files urls and formatted
*
* @param core_course_list_element $course
* @param array|stdClass $options additional formatting options
* @return string
*/
public function get_course_formatted_summary($course, $options = array()) {
global $CFG;
require_once($CFG->libdir. '/filelib.php');
if (!$course->has_summary()) {
return '';
}
$options = (array)$options;
$context = context_course::instance($course->id);
if (!isset($options['context'])) {
// TODO see MDL-38521
// option 1 (current), page context - no code required
// option 2, system context
// $options['context'] = context_system::instance();
// option 3, course context:
// $options['context'] = $context;
// option 4, course category context:
// $options['context'] = $context->get_parent_context();
}
$summary = file_rewrite_pluginfile_urls($course->summary, 'pluginfile.php', $context->id, 'course', 'summary', null);
$summary = format_text($summary, $course->summaryformat, $options, $course->id);
if (!empty($this->searchcriteria['search'])) {
$summary = highlight($this->searchcriteria['search'], $summary);
}
return $summary;
}
/**
* Returns course name as it is configured to appear in courses lists formatted to course context
*
* @param core_course_list_element $course
* @param array|stdClass $options additional formatting options
* @return string
*/
public function get_course_formatted_name($course, $options = array()) {
$options = (array)$options;
if (!isset($options['context'])) {
$options['context'] = context_course::instance($course->id);
}
$name = format_string(get_course_display_name_for_list($course), true, $options);
if (!empty($this->searchcriteria['search'])) {
$name = highlight($this->searchcriteria['search'], $name);
}
return $name;
}
}