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renderer.php
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renderer.php
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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;
/**
* A cache of strings
* @var stdClass
*/
protected $strings;
/**
* Override the constructor so that we can initialise the string cache
*
* @param moodle_page $page
* @param string $target
*/
public function __construct(moodle_page $page, $target) {
$this->strings = new stdClass;
parent::__construct($page, $target);
$this->add_modchoosertoggle();
}
/**
* Adds the item in course settings navigation to toggle modchooser
*
* Theme can overwrite as an empty function to exclude it (for example if theme does not
* use modchooser at all)
*/
protected function add_modchoosertoggle() {
global $CFG;
static $modchoosertoggleadded = false;
// Add the module chooser toggle to the course page
if ($modchoosertoggleadded || $this->page->state > moodle_page::STATE_PRINTING_HEADER ||
$this->page->course->id == SITEID ||
!$this->page->user_is_editing() ||
!($context = context_course::instance($this->page->course->id)) ||
!has_capability('moodle/course:manageactivities', $context) ||
!course_ajax_enabled($this->page->course) ||
!($coursenode = $this->page->settingsnav->find('courseadmin', navigation_node::TYPE_COURSE)) ||
!($turneditingnode = $coursenode->get('turneditingonoff'))) {
// too late or we are on site page or we could not find the adjacent nodes in course settings menu
// or we are not allowed to edit
return;
}
$modchoosertoggleadded = true;
if ($this->page->url->compare(new moodle_url('/course/view.php'), URL_MATCH_BASE)) {
// We are on the course page, retain the current page params e.g. section.
$modchoosertoggleurl = clone($this->page->url);
} else {
// Edit on the main course page.
$modchoosertoggleurl = new moodle_url('/course/view.php', array('id' => $this->page->course->id,
'return' => $this->page->url->out_as_local_url(false)));
}
$modchoosertoggleurl->param('sesskey', sesskey());
if ($usemodchooser = get_user_preferences('usemodchooser', $CFG->modchooserdefault)) {
$modchoosertogglestring = get_string('modchooserdisable', 'moodle');
$modchoosertoggleurl->param('modchooser', 'off');
} else {
$modchoosertogglestring = get_string('modchooserenable', 'moodle');
$modchoosertoggleurl->param('modchooser', 'on');
}
$modchoosertoggle = navigation_node::create($modchoosertogglestring, $modchoosertoggleurl, navigation_node::TYPE_SETTING, null, 'modchoosertoggle');
// Insert the modchoosertoggle after the settings node 'turneditingonoff' (navigation_node only has function to insert before, so we insert before and then swap).
$coursenode->add_node($modchoosertoggle, 'turneditingonoff');
$turneditingnode->remove();
$coursenode->add_node($turneditingnode, 'modchoosertoggle');
$modchoosertoggle->add_class('modchoosertoggle');
$modchoosertoggle->add_class('visibleifjs');
user_preference_allow_ajax_update('usemodchooser', PARAM_BOOL);
}
/**
* Renders course info box.
*
* @param stdClass|course_in_list $course
* @return string
*/
public function course_info_box(stdClass $course) {
$content = '';
$content .= $this->output->box_start('generalbox info');
$chelper = new coursecat_helper();
$chelper->set_show_courses(self::COURSECAT_SHOW_COURSES_EXPANDED);
$content .= $this->coursecat_coursebox($chelper, $course);
$content .= $this->output->box_end();
return $content;
}
/**
* Renderers a structured array of courses and categories into a nice XHTML tree structure.
*
* @deprecated since 2.5
*
* Please see http://docs.moodle.org/dev/Courses_lists_upgrade_to_2.5
*
* @param array $ignored argument ignored
* @return string
*/
public final function course_category_tree(array $ignored) {
debugging('Function core_course_renderer::course_category_tree() is deprecated, please use frontpage_combo_list()', DEBUG_DEVELOPER);
return $this->frontpage_combo_list();
}
/**
* Renderers a category for use with course_category_tree
*
* @deprecated since 2.5
*
* Please see http://docs.moodle.org/dev/Courses_lists_upgrade_to_2.5
*
* @param array $category
* @param int $depth
* @return string
*/
protected final function course_category_tree_category(stdClass $category, $depth=1) {
debugging('Function core_course_renderer::course_category_tree_category() is deprecated', DEBUG_DEVELOPER);
return '';
}
/**
* Build the HTML for the module chooser javascript popup
*
* @param array $modules A set of modules as returned form @see
* get_module_metadata
* @param object $course The course that will be displayed
* @return string The composed HTML for the module
*/
public function course_modchooser($modules, $course) {
static $isdisplayed = false;
if ($isdisplayed) {
return '';
}
$isdisplayed = true;
// Add the module chooser
$this->page->requires->yui_module('moodle-course-modchooser',
'M.course.init_chooser',
array(array('courseid' => $course->id, 'closeButtonTitle' => get_string('close', 'editor')))
);
$this->page->requires->strings_for_js(array(
'addresourceoractivity',
'modchooserenable',
'modchooserdisable',
), 'moodle');
// Add the header
$header = html_writer::tag('div', get_string('addresourceoractivity', 'moodle'),
array('class' => 'hd choosertitle'));
$formcontent = html_writer::start_tag('form', array('action' => new moodle_url('/course/jumpto.php'),
'id' => 'chooserform', 'method' => 'post'));
$formcontent .= html_writer::start_tag('div', array('id' => 'typeformdiv'));
$formcontent .= html_writer::tag('input', '', array('type' => 'hidden', 'id' => 'course',
'name' => 'course', 'value' => $course->id));
$formcontent .= html_writer::tag('input', '',
array('type' => 'hidden', 'class' => 'jump', 'name' => 'jump', 'value' => ''));
$formcontent .= html_writer::tag('input', '', array('type' => 'hidden', 'name' => 'sesskey',
'value' => sesskey()));
$formcontent .= html_writer::end_tag('div');
// Put everything into one tag 'options'
$formcontent .= html_writer::start_tag('div', array('class' => 'options'));
$formcontent .= html_writer::tag('div', get_string('selectmoduletoviewhelp', 'moodle'),
array('class' => 'instruction'));
// Put all options into one tag 'alloptions' to allow us to handle scrolling
$formcontent .= html_writer::start_tag('div', array('class' => 'alloptions'));
// Activities
$activities = array_filter($modules, create_function('$mod', 'return ($mod->archetype !== MOD_ARCHETYPE_RESOURCE && $mod->archetype !== MOD_ARCHETYPE_SYSTEM);'));
if (count($activities)) {
$formcontent .= $this->course_modchooser_title('activities');
$formcontent .= $this->course_modchooser_module_types($activities);
}
// Resources
$resources = array_filter($modules, create_function('$mod', 'return ($mod->archetype === MOD_ARCHETYPE_RESOURCE);'));
if (count($resources)) {
$formcontent .= $this->course_modchooser_title('resources');
$formcontent .= $this->course_modchooser_module_types($resources);
}
$formcontent .= html_writer::end_tag('div'); // modoptions
$formcontent .= html_writer::end_tag('div'); // types
$formcontent .= html_writer::start_tag('div', array('class' => 'submitbuttons'));
$formcontent .= html_writer::tag('input', '',
array('type' => 'submit', 'name' => 'submitbutton', 'class' => 'submitbutton', 'value' => get_string('add')));
$formcontent .= html_writer::tag('input', '',
array('type' => 'submit', 'name' => 'addcancel', 'class' => 'addcancel', 'value' => get_string('cancel')));
$formcontent .= html_writer::end_tag('div');
$formcontent .= html_writer::end_tag('form');
// Wrap the whole form in a div
$formcontent = html_writer::tag('div', $formcontent, array('id' => 'chooseform'));
// Put all of the content together
$content = $formcontent;
$content = html_writer::tag('div', $content, array('class' => 'choosercontainer'));
return $header . html_writer::tag('div', $content, array('class' => 'chooserdialoguebody'));
}
/**
* Build the HTML for a specified set of modules
*
* @param array $modules A set of modules as used by the
* course_modchooser_module function
* @return string The composed HTML for the module
*/
protected function course_modchooser_module_types($modules) {
$return = '';
foreach ($modules as $module) {
if (!isset($module->types)) {
$return .= $this->course_modchooser_module($module);
} else {
$return .= $this->course_modchooser_module($module, array('nonoption'));
foreach ($module->types as $type) {
$return .= $this->course_modchooser_module($type, array('option', 'subtype'));
}
}
}
return $return;
}
/**
* Return the HTML for the specified module adding any required classes
*
* @param object $module An object containing the title, and link. An
* icon, and help text may optionally be specified. If the module
* contains subtypes in the types option, then these will also be
* displayed.
* @param array $classes Additional classes to add to the encompassing
* div element
* @return string The composed HTML for the module
*/
protected function course_modchooser_module($module, $classes = array('option')) {
$output = '';
$output .= html_writer::start_tag('div', array('class' => implode(' ', $classes)));
$output .= html_writer::start_tag('label', array('for' => 'module_' . $module->name));
if (!isset($module->types)) {
$output .= html_writer::tag('input', '', array('type' => 'radio',
'name' => 'jumplink', 'id' => 'module_' . $module->name, 'value' => $module->link));
}
$output .= html_writer::start_tag('span', array('class' => 'modicon'));
if (isset($module->icon)) {
// Add an icon if we have one
$output .= $module->icon;
}
$output .= html_writer::end_tag('span');
$output .= html_writer::tag('span', $module->title, array('class' => 'typename'));
if (!isset($module->help)) {
// Add help if found
$module->help = get_string('nohelpforactivityorresource', 'moodle');
}
// Format the help text using markdown with the following options
$options = new stdClass();
$options->trusted = false;
$options->noclean = false;
$options->smiley = false;
$options->filter = false;
$options->para = true;
$options->newlines = false;
$options->overflowdiv = false;
$module->help = format_text($module->help, FORMAT_MARKDOWN, $options);
$output .= html_writer::tag('span', $module->help, array('class' => 'typesummary'));
$output .= html_writer::end_tag('label');
$output .= html_writer::end_tag('div');
return $output;
}
protected function course_modchooser_title($title, $identifier = null) {
$module = new stdClass();
$module->name = $title;
$module->types = array();
$module->title = get_string($title, $identifier);
$module->help = '';
return $this->course_modchooser_module($module, array('moduletypetitle'));
}
/**
* Renders HTML for displaying the sequence of course module editing buttons
*
* @see course_get_cm_edit_actions()
*
* @param action_link[] $actions Array of action_link objects
* @param cm_info $mod The module we are displaying actions for.
* @param array $displayoptions additional display options:
* ownerselector => A JS/CSS selector that can be used to find an cm node.
* If specified the owning node will be given the class 'action-menu-shown' when the action
* menu is being displayed.
* constraintselector => A JS/CSS selector that can be used to find the parent node for which to constrain
* the action menu to when it is being displayed.
* donotenhance => If set to true the action menu that gets displayed won't be enhanced by JS.
* @return string
*/
public function course_section_cm_edit_actions($actions, cm_info $mod = null, $displayoptions = array()) {
global $CFG;
if (empty($actions)) {
return '';
}
if (isset($displayoptions['ownerselector'])) {
$ownerselector = $displayoptions['ownerselector'];
} else if ($mod) {
$ownerselector = '#module-'.$mod->id;
} else {
debugging('You should upgrade your call to '.__FUNCTION__.' and provide $mod', DEBUG_DEVELOPER);
$ownerselector = 'li.activity';
}
if (isset($displayoptions['constraintselector'])) {
$constraint = $displayoptions['constraintselector'];
} else {
$constraint = '.course-content';
}
$menu = new action_menu();
$menu->set_owner_selector($ownerselector);
$menu->set_contraint($constraint);
$menu->set_alignment(action_menu::TL, action_menu::TR);
if (isset($CFG->modeditingmenu) && !$CFG->modeditingmenu || !empty($displayoptions['donotenhance'])) {
$menu->do_not_enhance();
}
foreach ($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';
return $this->render($menu);
}
/**
* Renders HTML for the menus to add activities and resources to the current course
*
* Note, if theme overwrites this function and it does not use modchooser,
* see also {@link core_course_renderer::add_modchoosertoggle()}
*
* @param stdClass $course
* @param int $section relative section number (field course_sections.section)
* @param int $sectionreturn The section to link back to
* @param array $displayoptions additional display options, for example blocks add
* option 'inblock' => true, suggesting to display controls vertically
* @return string
*/
function course_section_add_cm_control($course, $section, $sectionreturn = null, $displayoptions = array()) {
global $CFG;
$vertical = !empty($displayoptions['inblock']);
// check to see if user can add menus and there are modules to add
if (!has_capability('moodle/course:manageactivities', context_course::instance($course->id))
|| !$this->page->user_is_editing()
|| !($modnames = get_module_types_names()) || empty($modnames)) {
return '';
}
// Retrieve all modules with associated metadata
$modules = get_module_metadata($course, $modnames, $sectionreturn);
$urlparams = array('section' => $section);
// We'll sort resources and activities into two lists
$activities = array(MOD_CLASS_ACTIVITY => array(), MOD_CLASS_RESOURCE => array());
foreach ($modules as $module) {
if (isset($module->types)) {
// This module has a subtype
// NOTE: this is legacy stuff, module subtypes are very strongly discouraged!!
$subtypes = array();
foreach ($module->types as $subtype) {
$link = $subtype->link->out(true, $urlparams);
$subtypes[$link] = $subtype->title;
}
// Sort module subtypes into the list
$activityclass = MOD_CLASS_ACTIVITY;
if ($module->archetype == MOD_CLASS_RESOURCE) {
$activityclass = MOD_CLASS_RESOURCE;
}
if (!empty($module->title)) {
// This grouping has a name
$activities[$activityclass][] = array($module->title => $subtypes);
} else {
// This grouping does not have a name
$activities[$activityclass] = array_merge($activities[$activityclass], $subtypes);
}
} else {
// This module has no subtypes
$activityclass = MOD_CLASS_ACTIVITY;
if ($module->archetype == MOD_ARCHETYPE_RESOURCE) {
$activityclass = MOD_CLASS_RESOURCE;
} else if ($module->archetype === MOD_ARCHETYPE_SYSTEM) {
// System modules cannot be added by user, do not add to dropdown
continue;
}
$link = $module->link->out(true, $urlparams);
$activities[$activityclass][$link] = $module->title;
}
}
$straddactivity = get_string('addactivity');
$straddresource = get_string('addresource');
$sectionname = get_section_name($course, $section);
$strresourcelabel = get_string('addresourcetosection', null, $sectionname);
$stractivitylabel = get_string('addactivitytosection', null, $sectionname);
$output = html_writer::start_tag('div', array('class' => 'section_add_menus', 'id' => 'add_menus-section-' . $section));
if (!$vertical) {
$output .= html_writer::start_tag('div', array('class' => 'horizontal'));
}
if (!empty($activities[MOD_CLASS_RESOURCE])) {
$select = new url_select($activities[MOD_CLASS_RESOURCE], '', array(''=>$straddresource), "ressection$section");
$select->set_help_icon('resources');
$select->set_label($strresourcelabel, array('class' => 'accesshide'));
$output .= $this->output->render($select);
}
if (!empty($activities[MOD_CLASS_ACTIVITY])) {
$select = new url_select($activities[MOD_CLASS_ACTIVITY], '', array(''=>$straddactivity), "section$section");
$select->set_help_icon('activities');
$select->set_label($stractivitylabel, array('class' => 'accesshide'));
$output .= $this->output->render($select);
}
if (!$vertical) {
$output .= html_writer::end_tag('div');
}
$output .= html_writer::end_tag('div');
if (course_ajax_enabled($course) && $course->id == $this->page->course->id) {
// modchooser can be added only for the current course set on the page!
$straddeither = get_string('addresourceoractivity');
// The module chooser link
$modchooser = html_writer::start_tag('div', array('class' => 'mdl-right'));
$modchooser.= html_writer::start_tag('div', array('class' => 'section-modchooser'));
$icon = $this->output->pix_icon('t/add', '');
$span = html_writer::tag('span', $straddeither, array('class' => 'section-modchooser-text'));
$modchooser .= html_writer::tag('span', $icon . $span, array('class' => 'section-modchooser-link'));
$modchooser.= html_writer::end_tag('div');
$modchooser.= html_writer::end_tag('div');
// Wrap the normal output in a noscript div
$usemodchooser = get_user_preferences('usemodchooser', $CFG->modchooserdefault);
if ($usemodchooser) {
$output = html_writer::tag('div', $output, array('class' => 'hiddenifjs addresourcedropdown'));
$modchooser = html_writer::tag('div', $modchooser, array('class' => 'visibleifjs addresourcemodchooser'));
} else {
// If the module chooser is disabled, we need to ensure that the dropdowns are shown even if javascript is disabled
$output = html_writer::tag('div', $output, array('class' => 'show addresourcedropdown'));
$modchooser = html_writer::tag('div', $modchooser, array('class' => 'hide addresourcemodchooser'));
}
$output = $this->course_modchooser($modules, $course) . $modchooser . $output;
}
return $output;
}
/**
* Renders html to display a course search form
*
* @param string $value default value to populate the search field
* @param string $format display format - 'plain' (default), 'short' or 'navbar'
* @return string
*/
function course_search_form($value = '', $format = 'plain') {
static $count = 0;
$formid = 'coursesearch';
if ((++$count) > 1) {
$formid .= $count;
}
switch ($format) {
case 'navbar' :
$formid = 'coursesearchnavbar';
$inputid = 'navsearchbox';
$inputsize = 20;
break;
case 'short' :
$inputid = 'shortsearchbox';
$inputsize = 12;
break;
default :
$inputid = 'coursesearchbox';
$inputsize = 30;
}
$strsearchcourses= get_string("searchcourses");
$searchurl = new moodle_url('/course/search.php');
$output = html_writer::start_tag('form', array('id' => $formid, 'action' => $searchurl, 'method' => 'get'));
$output .= html_writer::start_tag('fieldset', array('class' => 'coursesearchbox invisiblefieldset'));
$output .= html_writer::tag('label', $strsearchcourses.': ', array('for' => $inputid));
$output .= html_writer::empty_tag('input', array('type' => 'text', 'id' => $inputid,
'size' => $inputsize, 'name' => 'search', 'value' => s($value)));
$output .= html_writer::empty_tag('input', array('type' => 'submit',
'value' => get_string('go')));
$output .= html_writer::end_tag('fieldset');
$output .= html_writer::end_tag('form');
return $output;
}
/**
* Renders html for completion box on course page
*
* If completion is disabled, returns empty string
* If completion is automatic, returns an icon of the current completion state
* If completion is manual, returns a form (with an icon inside) that allows user to
* toggle completion
*
* @param stdClass $course course object
* @param completion_info $completioninfo completion info for the course, it is recommended
* to fetch once for all modules in course/section for performance
* @param cm_info $mod module to show completion for
* @param array $displayoptions display options, not used in core
* @return string
*/
public function course_section_cm_completion($course, &$completioninfo, cm_info $mod, $displayoptions = array()) {
global $CFG;
$output = '';
if (!empty($displayoptions['hidecompletion']) || !isloggedin() || isguestuser() || !$mod->uservisible) {
return $output;
}
if ($completioninfo === null) {
$completioninfo = new completion_info($course);
}
$completion = $completioninfo->is_enabled($mod);
if ($completion == COMPLETION_TRACKING_NONE) {
return $output;
}
$completiondata = $completioninfo->get_data($mod, true);
$completionicon = '';
if ($this->page->user_is_editing()) {
switch ($completion) {
case COMPLETION_TRACKING_MANUAL :
$completionicon = 'manual-enabled'; break;
case COMPLETION_TRACKING_AUTOMATIC :
$completionicon = 'auto-enabled'; break;
}
} else if ($completion == COMPLETION_TRACKING_MANUAL) {
switch($completiondata->completionstate) {
case COMPLETION_INCOMPLETE:
$completionicon = 'manual-n'; break;
case COMPLETION_COMPLETE:
$completionicon = 'manual-y'; break;
}
} else { // Automatic
switch($completiondata->completionstate) {
case COMPLETION_INCOMPLETE:
$completionicon = 'auto-n'; break;
case COMPLETION_COMPLETE:
$completionicon = 'auto-y'; break;
case COMPLETION_COMPLETE_PASS:
$completionicon = 'auto-pass'; break;
case COMPLETION_COMPLETE_FAIL:
$completionicon = 'auto-fail'; break;
}
}
if ($completionicon) {
$formattedname = $mod->get_formatted_name();
$imgalt = get_string('completion-alt-' . $completionicon, 'completion', $formattedname);
if ($completion == COMPLETION_TRACKING_MANUAL && !$this->page->user_is_editing()) {
$imgtitle = get_string('completion-title-' . $completionicon, 'completion', $formattedname);
$newstate =
$completiondata->completionstate == COMPLETION_COMPLETE
? COMPLETION_INCOMPLETE
: COMPLETION_COMPLETE;
// In manual mode the icon is a toggle form...
// If this completion state is used by the
// conditional activities system, we need to turn
// off the JS.
$extraclass = '';
if (!empty($CFG->enableavailability) &&
condition_info::completion_value_used_as_condition($course, $mod)) {
$extraclass = ' preventjs';
}
$output .= html_writer::start_tag('form', array('method' => 'post',
'action' => new moodle_url('/course/togglecompletion.php'),
'class' => 'togglecompletion'. $extraclass));
$output .= html_writer::start_tag('div');
$output .= html_writer::empty_tag('input', array(
'type' => 'hidden', 'name' => 'id', 'value' => $mod->id));
$output .= html_writer::empty_tag('input', array(
'type' => 'hidden', 'name' => 'sesskey', 'value' => sesskey()));
$output .= html_writer::empty_tag('input', array(
'type' => 'hidden', 'name' => 'modulename', 'value' => $mod->name));
$output .= html_writer::empty_tag('input', array(
'type' => 'hidden', 'name' => 'completionstate', 'value' => $newstate));
$output .= html_writer::empty_tag('input', array(
'type' => 'image',
'src' => $this->output->pix_url('i/completion-'.$completionicon),
'alt' => $imgalt, 'title' => $imgtitle,
'aria-live' => 'polite'));
$output .= html_writer::end_tag('div');
$output .= html_writer::end_tag('form');
} else {
// In auto mode, or when editing, 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)) {
$conditionalhidden = $mod->availablefrom > time() ||
($mod->availableuntil && $mod->availableuntil < time()) ||
count($mod->conditionsgrade) > 0 ||
count($mod->conditionscompletion) > 0;
}
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()) {
global $CFG;
$output = '';
if (!$mod->uservisible &&
(empty($mod->showavailability) || empty($mod->availableinfo))) {
// nothing to be displayed to the user
return $output;
}
$url = $mod->get_url();
if (!$url) {
return $output;
}
//Accessibility: for files get description via icon, this is very ugly hack!
$instancename = $mod->get_formatted_name();
$altname = $mod->modfullname;
// Avoid unnecessary duplication: if e.g. a forum name already
// includes the word forum (or Forum, etc) then it is unhelpful
// to include that in the accessible description that is added.
if (false !== strpos(core_text::strtolower($instancename),
core_text::strtolower($altname))) {
$altname = '';
}
// File type after name, for alphabetic lists (screen reader).
if ($altname) {
$altname = get_accesshide(' '.$altname);
}
// For items which are hidden but available to current user
// ($mod->uservisible), we show those as dimmed only if the user has
// viewhiddenactivities, so that teachers see 'items which might not
// be available to some students' dimmed but students do not see 'item
// which is actually available to current student' dimmed.
$conditionalhidden = $this->is_cm_conditionally_hidden($mod);
$accessiblebutdim = (!$mod->visible || $conditionalhidden) &&
(!$mod->uservisible || has_capability('moodle/course:viewhiddenactivities',
context_course::instance($mod->course)));
$linkclasses = '';
$accesstext = '';
$textclasses = '';
if ($accessiblebutdim) {
$linkclasses .= ' dimmed';
$textclasses .= ' dimmed_text';
if ($conditionalhidden) {
$linkclasses .= ' conditionalhidden';
$textclasses .= ' conditionalhidden';
}
if ($mod->uservisible) {
// show accessibility note only if user can access the module himself
$accesstext = get_accesshide(get_string('hiddenfromstudents').':'. $mod->modfullname);
}
}
// Get on-click attribute value if specified and decode the onclick - it
// has already been encoded for display (puke).
$onclick = htmlspecialchars_decode($mod->get_on_click(), ENT_QUOTES);
$groupinglabel = '';
if (!empty($mod->groupingid) && has_capability('moodle/course:managegroups', context_course::instance($mod->course))) {
$groupings = groups_get_all_groupings($mod->course);
$groupinglabel = html_writer::tag('span', '('.format_string($groupings[$mod->groupingid]->name).')',
array('class' => 'groupinglabel '.$textclasses));
}
// Display link itself.
$activitylink = html_writer::empty_tag('img', array('src' => $mod->get_icon_url(),
'class' => 'iconlarge activityicon', 'alt' => ' ', 'role' => 'presentation')) . $accesstext .
html_writer::tag('span', $instancename . $altname, array('class' => 'instancename'));
if ($mod->uservisible) {
$output .= html_writer::link($url, $activitylink, array('class' => $linkclasses, 'onclick' => $onclick)) .
$groupinglabel;
} else {
// We may be displaying this just in order to show information
// about visibility, without the actual link ($mod->uservisible)
$output .= html_writer::tag('div', $activitylink, array('class' => $textclasses)) .
$groupinglabel;
}
return $output;
}
/**
* Renders html to display the module content on the course page (i.e. text of the labels)
*
* @param cm_info $mod
* @param array $displayoptions
* @return string
*/
public function course_section_cm_text(cm_info $mod, $displayoptions = array()) {
$output = '';
if (!$mod->uservisible &&
(empty($mod->showavailability) || empty($mod->availableinfo))) {
// nothing to be displayed to the user
return $output;
}
$content = $mod->get_formatted_content(array('overflowdiv' => true, 'noclean' => true));
if ($this->page->user_is_editing()) {
// In editing mode, when an item is conditionally hidden from some users
// we show it as greyed out.
$conditionalhidden = $this->is_cm_conditionally_hidden($mod);
$dim = !$mod->visible || $conditionalhidden;
} else {
// When not in editing mode, we only show item as hidden if it is
// actually not available to the user
$conditionalhidden = false;
$dim = !$mod->uservisible;
}
$textclasses = '';
$accesstext = '';
if ($dim) {
$textclasses .= ' dimmed_text';
if ($conditionalhidden) {
$textclasses .= ' conditionalhidden';
}
if ($mod->uservisible) {
// show accessibility note only if user can access the module himself
$accesstext = get_accesshide(get_string('hiddenfromstudents').': ');
}
}
if ($mod->get_url()) {
if ($content) {
// If specified, display extra content after link.
$output = html_writer::tag('div', $content, array('class' =>
trim('contentafterlink ' . $textclasses)));
}
} else {
// No link, so display only content.
$output = html_writer::tag('div', $accesstext . $content, array('class' => $textclasses));
}
return $output;
}
/**
* Renders HTML to show course module availability information (for someone who isn't allowed
* to see the activity itself, or for staff)
*
* @param cm_info $mod
* @param array $displayoptions
* @return string
*/
public function course_section_cm_availability(cm_info $mod, $displayoptions = array()) {
global $CFG;
if (!$mod->uservisible) {
// this is a student who is not allowed to see the module but might be allowed
// to see availability info (i.e. "Available from ...")
if (!empty($mod->showavailability) && !empty($mod->availableinfo)) {
$output = html_writer::tag('div', $mod->availableinfo, array('class' => 'availabilityinfo'));
}
return $output;
}
// this is a teacher who is allowed to see module but still should see the
// information that module is not available to all/some students
$modcontext = context_module::instance($mod->id);
$canviewhidden = has_capability('moodle/course:viewhiddenactivities', $modcontext);
if ($canviewhidden && !empty($CFG->enableavailability)) {
// Don't add availability information if user is not editing and activity is hidden.
if ($mod->visible || $this->page->user_is_editing()) {
$hidinfoclass = '';
if (!$mod->visible) {
$hidinfoclass = 'hide';
}
$ci = new condition_info($mod);
$fullinfo = $ci->get_full_information();
if($fullinfo) {
return '<div class="availabilityinfo '.$hidinfoclass.'">'.get_string($mod->showavailability
? 'userrestriction_visible'
: 'userrestriction_hidden','condition',
$fullinfo).'</div>';
}
}
}
return '';
}
/**
* Renders HTML to display one course module for display within a section.
*
* This function calls:
* {@link core_course_renderer::course_section_cm()}
*
* @param stdClass $course
* @param completion_info $completioninfo
* @param cm_info $mod
* @param int|null $sectionreturn
* @param array $displayoptions
* @return String
*/
public function course_section_cm_list_item($course, &$completioninfo, cm_info $mod, $sectionreturn, $displayoptions = array()) {
$output = '';
if ($modulehtml = $this->course_section_cm($course, $completioninfo, $mod, $sectionreturn, $displayoptions)) {
$modclasses = 'activity ' . $mod->modname . ' modtype_' . $mod->modname . ' ' . $mod->get_extra_classes();
$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 cm_info::get_after_link()}
* {@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()) {
$output = '';
// We return empty string (because course module will not be displayed at all)
// if:
// 1) The activity is not visible to users
// and
// 2a) The 'showavailability' option is not set (if that is set,
// we need to display the activity so we can show
// availability info)
// or
// 2b) The 'availableinfo' is empty, i.e. the activity was
// hidden in a way that leaves no info, such as using the
// eye icon.
if (!$mod->uservisible &&
(empty($mod->showavailability) || empty($mod->availableinfo))) {
return $output;
}
$indentclasses = 'mod-indent';
if (!empty($mod->indent)) {
$indentclasses .= ' mod-indent-'.$mod->indent;
if ($mod->indent > 15) {
$indentclasses .= ' mod-indent-huge';
}
}
$output .= html_writer::start_tag('div', array('class' => $indentclasses));
// Start the div for the activity title, excluding the edit icons.
$output .= html_writer::start_tag('div', array('class' => 'activityinstance'));
// Display the link to the module (or do nothing if module has no url)
$output .= $this->course_section_cm_name($mod, $displayoptions);
// Module can put text after the link (e.g. forum unread)
$output .= $mod->get_after_link();
// 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 = $mod->get_url();
if (empty($url)) {
$output .= $contentpart;
}
if ($this->page->user_is_editing()) {
$editactions = course_get_cm_edit_actions($mod, $mod->indent, $sectionreturn);
$output .= ' '. $this->course_section_cm_edit_actions($editactions, $mod, $displayoptions);
$output .= $mod->get_after_edit_icons();
}
$output .= $this->course_section_cm_completion($course, $completioninfo, $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;
}
// show availability info (if module is not available)
$output .= $this->course_section_cm_availability($mod, $displayoptions);
$output .= html_writer::end_tag('div'); // $indentclasses
return $output;
}
/**
* Renders HTML to display a list of course modules in a course section
* Also displays "move here" controls in Javascript-disabled mode
*
* This function calls {@link core_course_renderer::course_section_cm()}
*
* @param stdClass $course course object
* @param int|stdClass|section_info $section relative section number or section object
* @param int $sectionreturn section number to return to
* @param int $displayoptions
* @return void
*/
public function course_section_cm_list($course, $section, $sectionreturn = null, $displayoptions = array()) {
global $USER;
$output = '';
$modinfo = get_fast_modinfo($course);
if (is_object($section)) {
$section = $modinfo->get_section_info($section->section);