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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/>.
/**
* Icon set class for format tiles.
* @package format_tiles
* @copyright 2019 David Watson {@link http://evolutioncode.uk}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace format_tiles;
use core\output\icon_system;
defined('MOODLE_INTERNAL') || die();
/**
* Icon set class for format tiles.
* @package format_tiles
* @copyright 2019 David Watson {@link http://evolutioncode.uk}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class icon_set {
/**
* Should this plugin use font awesome or not?
* This variable is provided to give developers an easy way to disable FA for this plugin if they need to.
* The reason is that sometimes a theme *seems* to support FA, but in reality does so with issues.
* If set to false, images in pix/tileicon etc will be used instead of FA.
* If you change this in code, purge all caches afterwards.
* @var bool
*/
private $usefontawesome = true; // Change this to false if you don't want "Tiles" plugin to use font awesome.
/**
* These are shown on tiles. The teacher chooses which one to apply to each tile or course.
* To make more icons available to a teacher, add them here using the set at https://fontawesome.com/v4.7.0/icons/.
* Alternatively, if your theme does not support Font Awesome or you want to use image files, add them to pix/tileicon.
* The files in pix/tileicon are only used as a fallback, if the theme does not support font awesome.
* In both cases, you will then need to purge all caches to ensure that the new icon is visible.
* @var array
*/
private $fontawesometileicons = [
'fa-asterisk',
'fa-address-book-o',
'fa-balance-scale',
'fa-bar-chart',
'fa-bell-o',
'fa-binoculars',
'fa-bitcoin',
'fa-bookmark-o',
'fa-briefcase',
'fa-building',
'fa-bullhorn',
'fa-bullseye',
'fa-calculator',
'fa-calendar',
'fa-calendar-check-o',
'fa-check',
'fa-child',
'fa-clock-o',
'fa-clone',
'fa-cloud-download',
'fa-cloud-upload',
'fa-comment-o',
'fa-comments-o',
'fa-compass',
'fa-diamond',
'fa-dollar',
'fa-euro',
'fa-exclamation-triangle',
'fa-feed',
'fa-file-text-o',
'fa-film',
'fa-flag-checkered',
'fa-flag-o',
'fa-flash',
'fa-flask',
'fa-frown-o',
'fa-gavel',
'fa-gbp',
'fa-globe',
'fa-handshake-o',
'fa-headphones',
'fa-heartbeat',
'fa-history',
'fa-home',
'fa-id-card-o',
'fa-info',
'fa-key',
'fa-laptop',
'fa-life-buoy',
'fa-lightbulb-o',
'fa-line-chart',
'fa-list',
'fa-list-ol',
'fa-location-arrow',
'fa-map-marker',
'fa-map-o',
'fa-map-signs',
'fa-microphone',
'fa-mobile-phone',
'fa-mortar-board',
'fa-music',
'fa-newspaper-o',
'fa-pencil-square-o',
'fa-pie-chart',
'fa-podcast',
'fa-puzzle-piece',
'fa-question-circle',
'fa-random',
'fa-refresh',
'fa-road',
'fa-search',
'fa-sliders',
'fa-smile-o',
'fa-star',
'fa-star-half-o',
'fa-star-o',
'fa-tags',
'fa-tasks',
'fa-television',
'fa-thumbs-o-down',
'fa-thumbs-o-up',
'fa-trophy',
'fa-umbrella',
'fa-university',
'fa-user-o',
'fa-users',
'fa-volume-up',
'fa-wrench'
];
/**
* In order to populate the option menus under course setting which allow the user to select
* a tile icon from all those available, iterates through all font awesome icons and images in
* the relevant directory and generates a suitable menu option for each icon.
* As to the display name, for an icon in the pix directory (e.g. book.svg) then lang string 'icontitle-book" is sought.
* Likewise for a font awesome icon called 'fa-tasks', a lang string 'icontitle-tasks' is sought.
* If the language string is not found (e.g. it is a custom icon added to pix with no lang string), filename is used.
* @param int $courseid the id of the course we are in (so we can mark the default icon for this course).
* @return array of tile icons
* @throws \coding_exception
* @throws \dml_exception
*/
public function available_tile_icons($courseid = 0) {
global $CFG, $PAGE, $DB;
$stringmanager = get_string_manager();
$availableicons = [];
// First if the theme supports font awesome, use the available font awesome tile icons.
// Using $PAGE->theme->get_icon_system()==icons_system::fontawesome does not work for Moove.
// However Moove does support font awesome for {{pix}}, so we add a whitelist too.
if ($this->usefontawesome) {
$fontawesomethemeswhitelist = ['moove'];
try {
$faiconsystem = $PAGE->theme->get_icon_system() == icon_system::FONTAWESOME;
} catch (\Exception $ex) {
$faiconsystem = false;
debugging(
'Could not get theme icon system. Using fallback /pix images for tile icons. ' . $ex->getMessage(),
DEBUG_DEVELOPER
);
}
if ($faiconsystem || array_search($PAGE->theme->name, $fontawesomethemeswhitelist) !== false) {
foreach ($this->fontawesometileicons as $iconname) {
$pixname = str_replace('fa-', '', $iconname);
if ($stringmanager->string_exists('icontitle-' . $pixname, 'format_tiles')) {
$displayname = get_string('icontitle-' . $pixname, 'format_tiles');
} else {
$displayname = ucwords(str_replace('_', ' ', (str_replace('-', ' ', $pixname))));
}
$availableicons[$pixname] = $displayname;
}
}
}
// Now look for any supplemental image file (i.e. non font awesome icons) which are available as tile icons.
// Add them to the list.
// Ideally all of the icons would be removed from the pix directorym except custom non font-awesome icons.
// The reason is that those fallback images are never called if the theme is font awesome compatible (as fa is used).
// However they are left in pix for now as some older themes (e.g. Clean) may need them.
$iconsindirectory = get_directory_list($CFG->dirroot
. '/course/format/tiles/pix/tileicon', '', false, false, true);
foreach ($iconsindirectory as $icon) {
$filename = explode('.', $icon)[0];
// If we don't already have it from font awesome (e.g. book, flipchart, assessment_timer), then add it here.
if (!isset($availableicons[$filename])) {
if ($stringmanager->string_exists('icontitle-' . $filename, 'format_tiles')) {
$displayname = get_string('icontitle-' . $filename, 'format_tiles');
} else {
$displayname = ucwords(str_replace('_', ' ', (str_replace('-', ' ', $filename))));
}
$availableicons[$filename] = $displayname;
}
}
asort($availableicons);
if (!$courseid) {
return $availableicons;
} else {
// Put the default course icon in first place.
$defaulticon = $DB->get_field('course_format_options', 'value', array(
'courseid' => $courseid,
'format' => 'tiles',
'sectionid' => 0,
'name' => 'defaulttileicon'
));
if ($defaulticon) {
$removedicondescription = $availableicons[$defaulticon] . ' (' . get_string('default') . ')';
unset($availableicons[$defaulticon]);
$availableicons = array_merge(array($defaulticon => $removedicondescription), $availableicons);
}
return $availableicons;
}
}
/**
* Lib.php calls this for example when caches are purged or plugin is updated, to get latest FA icon map.
* @see format_tiles_get_fontawesome_icon_map()
* @return array
*/
public function get_font_awesome_icon_map() {
if (!$this->usefontawesome) {
return [];
}
// First the general icons (not specific to tiles).
// These are used for example to show nav buttons within tiles.
$generalicons = [
'format_tiles:camera' => 'fa-camera',
'format_tiles:check' => 'fa-check',
'format_tiles:chevron-left' => 'fa-chevron-left',
'format_tiles:chevron-right' => 'fa-chevron-right',
'format_tiles:clone' => 'fa-clone',
'format_tiles:close' => 'fa-close',
'format_tiles:cloud-download' => 'fa-cloud-download',
'format_tiles:cloud-upload' => 'fa-cloud-upload',
'format_tiles:filter' => 'fa-filter',
'format_tiles:eye-slash' => 'fa-eye-slash',
'format_tiles:home' => 'fa-home',
'format_tiles:lock' => 'fa-lock',
'format_tiles:star-o' => 'fa-star-o',
'format_tiles:pencil' => 'fa-pencil',
'format_tiles:random' => 'fa-random',
'format_tiles:star' => 'fa-star',
'format_tiles:toggle-off' => 'fa-toggle-off',
'format_tiles:toggle-on' => 'fa-toggle-on'
];
// These are used on sub-tiles (if used) e.g. to show PDF, Excel activities.
$subtileicons = [
'format_tiles:subtile/comments-o' => 'fa-comments-o',
'format_tiles:subtile/database' => 'fa-database',
'format_tiles:subtile/feedback' => 'fa-bullhorn',
'format_tiles:subtile/file-excel' => 'fa-table',
'format_tiles:subtile/file-pdf-o' => 'fa-file-pdf-o',
'format_tiles:subtile/file-powerpoint-o' => 'fa-file-powerpoint-o',
'format_tiles:subtile/file-text-o' => 'fa-file-text-o',
'format_tiles:subtile/file-word-o' => 'fa-file-word-o',
'format_tiles:subtile/file-zip-o' => 'fa-file-zip-o',
'format_tiles:subtile/film' => 'fa-film',
'format_tiles:subtile/folder-o' => 'fa-folder-o',
'format_tiles:subtile/globe' => 'fa-globe',
'format_tiles:subtile/puzzle-piece' => 'fa-puzzle-piece',
'format_tiles:subtile/question-circle' => 'fa-question-circle',
'format_tiles:subtile/star' => 'fa-star',
'format_tiles:subtile/star-o' => 'fa-star-o',
'format_tiles:subtile/survey' => 'fa-bar-chart',
'format_tiles:subtile/volume-up' => 'fa-volume-up'
];
$tileicons = [];
foreach ($this->fontawesometileicons as $icon) {
$pixname = str_replace('fa-', '', $icon);
$tileicons['format_tiles:tileicon/' . $pixname] = $icon;
}
return array_merge($tileicons, $generalicons, $subtileicons);
}
}