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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * Contains class \core\output\icon_system
  19   *
  20   * @package    core
  21   * @category   output
  22   * @copyright  2016 Damyon Wiese
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  namespace core\output;
  27  
  28  use renderer_base;
  29  use pix_icon;
  30  
  31  defined('MOODLE_INTERNAL') || die();
  32  
  33  /**
  34   * Class allowing different systems for mapping and rendering icons.
  35   *
  36   * Possible icon styles are:
  37   *   1. standard - image tags are generated which point to pix icons stored in a plugin pix folder.
  38   *   2. fontawesome - font awesome markup is generated with the name of the icon mapped from the moodle icon name.
  39   *   3. inline - inline tags are used for svg and png so no separate page requests are made (at the expense of page size).
  40   *
  41   * @package    core
  42   * @category   output
  43   * @copyright  2016 Damyon Wiese
  44   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  45   */
  46  class icon_system_fontawesome extends icon_system_font {
  47  
  48      /**
  49       * @var array $map Cached map of moodle icon names to font awesome icon names.
  50       */
  51      private $map = [];
  52  
  53      public function get_core_icon_map() {
  54          return [
  55              'core:docs' => 'fa-info-circle',
  56              'core:book' => 'fa-book',
  57              'core:help' => 'fa-question-circle text-info',
  58              'core:req' => 'fa-exclamation-circle text-danger',
  59              'core:a/add_file' => 'fa-file-o',
  60              'core:a/create_folder' => 'fa-folder-o',
  61              'core:a/download_all' => 'fa-download',
  62              'core:a/help' => 'fa-question-circle text-info',
  63              'core:a/logout' => 'fa-sign-out',
  64              'core:a/refresh' => 'fa-refresh',
  65              'core:a/search' => 'fa-search',
  66              'core:a/setting' => 'fa-cog',
  67              'core:a/view_icon_active' => 'fa-th',
  68              'core:a/view_list_active' => 'fa-list',
  69              'core:a/view_tree_active' => 'fa-folder',
  70              'core:b/bookmark-new' => 'fa-bookmark',
  71              'core:b/document-edit' => 'fa-pencil',
  72              'core:b/document-new' => 'fa-file-o',
  73              'core:b/document-properties' => 'fa-info',
  74              'core:b/edit-copy' => 'fa-files-o',
  75              'core:b/edit-delete' => 'fa-trash',
  76              'core:e/abbr' => 'fa-comment',
  77              'core:e/absolute' => 'fa-crosshairs',
  78              'core:e/accessibility_checker' => 'fa-universal-access',
  79              'core:e/acronym' => 'fa-comment',
  80              'core:e/advance_hr' => 'fa-arrows-h',
  81              'core:e/align_center' => 'fa-align-center',
  82              'core:e/align_left' => 'fa-align-left',
  83              'core:e/align_right' => 'fa-align-right',
  84              'core:e/anchor' => 'fa-chain',
  85              'core:e/backward' => 'fa-undo',
  86              'core:e/bold' => 'fa-bold',
  87              'core:e/bullet_list' => 'fa-list-ul',
  88              'core:e/cancel' => 'fa-times',
  89              'core:e/cancel_solid_circle' => 'fas fa-times-circle',
  90              'core:e/cell_props' => 'fa-info',
  91              'core:e/cite' => 'fa-quote-right',
  92              'core:e/cleanup_messy_code' => 'fa-eraser',
  93              'core:e/clear_formatting' => 'fa-i-cursor',
  94              'core:e/copy' => 'fa-clone',
  95              'core:e/cut' => 'fa-scissors',
  96              'core:e/decrease_indent' => 'fa-outdent',
  97              'core:e/delete_col' => 'fa-minus',
  98              'core:e/delete_row' => 'fa-minus',
  99              'core:e/delete' => 'fa-minus',
 100              'core:e/delete_table' => 'fa-minus',
 101              'core:e/document_properties' => 'fa-info',
 102              'core:e/emoticons' => 'fa-smile-o',
 103              'core:e/find_replace' => 'fa-search-plus',
 104              'core:e/file-text' => 'fa-file-text',
 105              'core:e/forward' => 'fa-arrow-right',
 106              'core:e/fullpage' => 'fa-arrows-alt',
 107              'core:e/fullscreen' => 'fa-arrows-alt',
 108              'core:e/help' => 'fa-question-circle',
 109              'core:e/increase_indent' => 'fa-indent',
 110              'core:e/insert_col_after' => 'fa-columns',
 111              'core:e/insert_col_before' => 'fa-columns',
 112              'core:e/insert_date' => 'fa-calendar',
 113              'core:e/insert_edit_image' => 'fa-picture-o',
 114              'core:e/insert_edit_link' => 'fa-link',
 115              'core:e/insert_edit_video' => 'fa-file-video-o',
 116              'core:e/insert_file' => 'fa-file',
 117              'core:e/insert_horizontal_ruler' => 'fa-arrows-h',
 118              'core:e/insert_nonbreaking_space' => 'fa-square-o',
 119              'core:e/insert_page_break' => 'fa-level-down',
 120              'core:e/insert_row_after' => 'fa-plus',
 121              'core:e/insert_row_before' => 'fa-plus',
 122              'core:e/insert' => 'fa-plus',
 123              'core:e/insert_time' => 'fa-clock-o',
 124              'core:e/italic' => 'fa-italic',
 125              'core:e/justify' => 'fa-align-justify',
 126              'core:e/layers_over' => 'fa-level-up',
 127              'core:e/layers' => 'fa-window-restore',
 128              'core:e/layers_under' => 'fa-level-down',
 129              'core:e/left_to_right' => 'fa-chevron-right',
 130              'core:e/manage_files' => 'fa-files-o',
 131              'core:e/math' => 'fa-calculator',
 132              'core:e/merge_cells' => 'fa-compress',
 133              'core:e/new_document' => 'fa-file-o',
 134              'core:e/numbered_list' => 'fa-list-ol',
 135              'core:e/page_break' => 'fa-level-down',
 136              'core:e/paste' => 'fa-clipboard',
 137              'core:e/paste_text' => 'fa-clipboard',
 138              'core:e/paste_word' => 'fa-clipboard',
 139              'core:e/prevent_autolink' => 'fa-exclamation',
 140              'core:e/preview' => 'fa-search-plus',
 141              'core:e/print' => 'fa-print',
 142              'core:e/question' => 'fa-question',
 143              'core:e/redo' => 'fa-repeat',
 144              'core:e/remove_link' => 'fa-chain-broken',
 145              'core:e/remove_page_break' => 'fa-remove',
 146              'core:e/resize' => 'fa-expand',
 147              'core:e/restore_draft' => 'fa-undo',
 148              'core:e/restore_last_draft' => 'fa-undo',
 149              'core:e/right_to_left' => 'fa-chevron-left',
 150              'core:e/row_props' => 'fa-info',
 151              'core:e/save' => 'fa-floppy-o',
 152              'core:e/screenreader_helper' => 'fa-braille',
 153              'core:e/search' => 'fa-search',
 154              'core:e/select_all' => 'fa-arrows-h',
 155              'core:e/show_invisible_characters' => 'fa-eye-slash',
 156              'core:e/source_code' => 'fa-code',
 157              'core:e/special_character' => 'fa-pencil-square-o',
 158              'core:e/spellcheck' => 'fa-check',
 159              'core:e/split_cells' => 'fa-columns',
 160              'core:e/strikethrough' => 'fa-strikethrough',
 161              'core:e/styleparagraph' => 'fa-font',
 162              'core:e/subscript' => 'fa-subscript',
 163              'core:e/superscript' => 'fa-superscript',
 164              'core:e/table_props' => 'fa-table',
 165              'core:e/table' => 'fa-table',
 166              'core:e/template' => 'fa-sticky-note',
 167              'core:e/text_color_picker' => 'fa-paint-brush',
 168              'core:e/text_color' => 'fa-paint-brush',
 169              'core:e/text_highlight_picker' => 'fa-lightbulb-o',
 170              'core:e/text_highlight' => 'fa-lightbulb-o',
 171              'core:e/tick' => 'fa-check',
 172              'core:e/toggle_blockquote' => 'fa-quote-left',
 173              'core:e/underline' => 'fa-underline',
 174              'core:e/undo' => 'fa-undo',
 175              'core:e/visual_aid' => 'fa-universal-access',
 176              'core:e/visual_blocks' => 'fa-audio-description',
 177              'theme:fp/add_file' => 'fa-file-o',
 178              'theme:fp/alias' => 'fa-share',
 179              'theme:fp/alias_sm' => 'fa-share',
 180              'theme:fp/check' => 'fa-check',
 181              'theme:fp/create_folder' => 'fa-folder-o',
 182              'theme:fp/cross' => 'fa-remove',
 183              'theme:fp/download_all' => 'fa-download',
 184              'theme:fp/help' => 'fa-question-circle',
 185              'theme:fp/link' => 'fa-link',
 186              'theme:fp/link_sm' => 'fa-link',
 187              'theme:fp/logout' => 'fa-sign-out',
 188              'theme:fp/path_folder' => 'fa-folder',
 189              'theme:fp/path_folder_rtl' => 'fa-folder',
 190              'theme:fp/refresh' => 'fa-refresh',
 191              'theme:fp/search' => 'fa-search',
 192              'theme:fp/setting' => 'fa-cog',
 193              'theme:fp/view_icon_active' => 'fa-th',
 194              'theme:fp/view_list_active' => 'fa-list',
 195              'theme:fp/view_tree_active' => 'fa-folder',
 196              'core:i/addblock' => 'fa-plus-square',
 197              'core:i/assignroles' => 'fa-user-plus',
 198              'core:i/asterisk' => 'fa-asterisk',
 199              'core:i/backup' => 'fa-file-zip-o',
 200              'core:i/badge' => 'fa-shield',
 201              'core:i/breadcrumbdivider' => 'fa-angle-right',
 202              'core:i/bullhorn' => 'fa-bullhorn',
 203              'core:i/calc' => 'fa-calculator',
 204              'core:i/calendar' => 'fa-calendar',
 205              'core:i/calendareventdescription' => 'fa-align-left',
 206              'core:i/calendareventtime' => 'fa-clock-o',
 207              'core:i/caution' => 'fa-exclamation text-warning',
 208              'core:i/checked' => 'fa-check',
 209              'core:i/checkedcircle' => 'fa-check-circle',
 210              'core:i/checkpermissions' => 'fa-unlock-alt',
 211              'core:i/cohort' => 'fa-users',
 212              'core:i/competencies' => 'fa-check-square-o',
 213              'core:i/completion_self' => 'fa-user-o',
 214              'core:i/contentbank' => 'fa-paint-brush',
 215              'core:i/dashboard' => 'fa-tachometer',
 216              'core:i/categoryevent' => 'fa-cubes',
 217              'core:i/course' => 'fa-graduation-cap',
 218              'core:i/courseevent' => 'fa-graduation-cap',
 219              'core:i/customfield' => 'fa-hand-o-right',
 220              'core:i/db' => 'fa-database',
 221              'core:i/delete' => 'fa-trash',
 222              'core:i/down' => 'fa-arrow-down',
 223              'core:i/dragdrop' => 'fa-arrows',
 224              'core:i/duration' => 'fa-clock-o',
 225              'core:i/emojicategoryactivities' => 'fa-futbol-o',
 226              'core:i/emojicategoryanimalsnature' => 'fa-leaf',
 227              'core:i/emojicategoryflags' => 'fa-flag',
 228              'core:i/emojicategoryfooddrink' => 'fa-cutlery',
 229              'core:i/emojicategoryobjects' => 'fa-lightbulb-o',
 230              'core:i/emojicategorypeoplebody' => 'fa-male',
 231              'core:i/emojicategoryrecent' => 'fa-clock-o',
 232              'core:i/emojicategorysmileysemotion' => 'fa-smile-o',
 233              'core:i/emojicategorysymbols' => 'fa-heart',
 234              'core:i/emojicategorytravelplaces' => 'fa-plane',
 235              'core:i/edit' => 'fa-pencil',
 236              'core:i/email' => 'fa-envelope',
 237              'core:i/empty' => 'fa-fw',
 238              'core:i/enrolmentsuspended' => 'fa-pause',
 239              'core:i/enrolusers' => 'fa-user-plus',
 240              'core:i/excluded' => 'fa-minus-circle',
 241              'core:i/expired' => 'fa-exclamation text-warning',
 242              'core:i/export' => 'fa-download',
 243              'core:i/link' => 'fa-link',
 244              'core:i/externallink' => 'fa-external-link',
 245              'core:i/files' => 'fa-file',
 246              'core:i/filter' => 'fa-filter',
 247              'core:i/flagged' => 'fa-flag',
 248              'core:i/folder' => 'fa-folder',
 249              'core:i/grade_correct' => 'fa-check text-success',
 250              'core:i/grade_incorrect' => 'fa-remove text-danger',
 251              'core:i/grade_partiallycorrect' => 'fa-check-square',
 252              'core:i/grades' => 'fa-table',
 253              'core:i/grading' => 'fa-magic',
 254              'core:i/gradingnotifications' => 'fa-bell-o',
 255              'core:i/groupevent' => 'fa-group',
 256              'core:i/group' => 'fa-users',
 257              'core:i/home' => 'fa-home',
 258              'core:i/hide' => 'fa-eye',
 259              'core:i/hierarchylock' => 'fa-lock',
 260              'core:i/import' => 'fa-level-up',
 261              'core:i/incorrect' => 'fa-exclamation',
 262              'core:i/info' => 'fa-info',
 263              'core:i/invalid' => 'fa-times text-danger',
 264              'core:i/item' => 'fa-circle',
 265              'core:i/loading' => 'fa-circle-o-notch fa-spin',
 266              'core:i/loading_small' => 'fa-circle-o-notch fa-spin',
 267              'core:i/location' => 'fa-map-marker',
 268              'core:i/lock' => 'fa-lock',
 269              'core:i/log' => 'fa-list-alt',
 270              'core:i/mahara_host' => 'fa-id-badge',
 271              'core:i/manual_item' => 'fa-pencil-square-o',
 272              'core:i/marked' => 'fa-circle',
 273              'core:i/marker' => 'fa-circle-o',
 274              'core:i/mean' => 'fa-calculator',
 275              'core:i/menu' => 'fa-ellipsis-v',
 276              'core:i/menubars' => 'fa-bars',
 277              'core:i/messagecontentaudio' => 'fa-headphones',
 278              'core:i/messagecontentimage' => 'fa-image',
 279              'core:i/messagecontentvideo' => 'fa-film',
 280              'core:i/messagecontentmultimediageneral' => 'fa-file-video-o',
 281              'core:i/mnethost' => 'fa-external-link',
 282              'core:i/moodle_host' => 'fa-graduation-cap',
 283              'core:i/moremenu' => 'fa-ellipsis-h',
 284              'core:i/move_2d' => 'fa-arrows',
 285              'core:i/muted' => 'fa-microphone-slash',
 286              'core:i/navigationitem' => 'fa-fw',
 287              'core:i/ne_red_mark' => 'fa-remove',
 288              'core:i/new' => 'fa-bolt',
 289              'core:i/news' => 'fa-newspaper-o',
 290              'core:i/next' => 'fa-chevron-right',
 291              'core:i/nosubcat' => 'fa-plus-square-o',
 292              'core:i/notifications' => 'fa-bell-o',
 293              'core:i/open' => 'fa-folder-open',
 294              'core:i/otherevent' => 'fa-calendar',
 295              'core:i/outcomes' => 'fa-tasks',
 296              'core:i/overriden_grade' => 'fa-edit',
 297              'core:i/payment' => 'fa-money',
 298              'core:i/permissionlock' => 'fa-lock',
 299              'core:i/permissions' => 'fa-pencil-square-o',
 300              'core:i/persona_sign_in_black' => 'fa-male',
 301              'core:i/portfolio' => 'fa-id-badge',
 302              'core:i/preview' => 'fa-search-plus',
 303              'core:i/previous' => 'fa-chevron-left',
 304              'core:i/privatefiles' => 'fa-file-o',
 305              'core:i/progressbar' => 'fa-spinner fa-spin',
 306              'core:i/publish' => 'fa-share',
 307              'core:i/questions' => 'fa-question',
 308              'core:i/reload' => 'fa-refresh',
 309              'core:i/report' => 'fa-area-chart',
 310              'core:i/repository' => 'fa-hdd-o',
 311              'core:i/restore' => 'fa-level-up',
 312              'core:i/return' => 'fa-arrow-left',
 313              'core:i/risk_config' => 'fa-exclamation text-muted',
 314              'core:i/risk_managetrust' => 'fa-exclamation-triangle text-warning',
 315              'core:i/risk_personal' => 'fa-exclamation-circle text-info',
 316              'core:i/risk_spam' => 'fa-exclamation text-primary',
 317              'core:i/risk_xss' => 'fa-exclamation-triangle text-danger',
 318              'core:i/role' => 'fa-user-md',
 319              'core:i/rss' => 'fa-rss',
 320              'core:i/rsssitelogo' => 'fa-graduation-cap',
 321              'core:i/scales' => 'fa-balance-scale',
 322              'core:i/scheduled' => 'fa-calendar-check-o',
 323              'core:i/search' => 'fa-search',
 324              'core:i/section' => 'fa-folder-o',
 325              'core:i/sendmessage' => 'fa-paper-plane',
 326              'core:i/settings' => 'fa-cog',
 327              'core:i/share' => 'fa-share-square-o',
 328              'core:i/show' => 'fa-eye-slash',
 329              'core:i/siteevent' => 'fa-globe',
 330              'core:i/star' => 'fa-star',
 331              'core:i/star-o' => 'fa-star-o',
 332              'core:i/star-rating' => 'fa-star',
 333              'core:i/stats' => 'fa-line-chart',
 334              'core:i/switch' => 'fa-exchange',
 335              'core:i/switchrole' => 'fa-user-secret',
 336              'core:i/trash' => 'fa-trash',
 337              'core:i/twoway' => 'fa-arrows-h',
 338              'core:i/unchecked' => 'fa-square-o',
 339              'core:i/uncheckedcircle' => 'fa-circle-o',
 340              'core:i/unflagged' => 'fa-flag-o',
 341              'core:i/unlock' => 'fa-unlock',
 342              'core:i/up' => 'fa-arrow-up',
 343              'core:i/upload' => 'fa-upload',
 344              'core:i/userevent' => 'fa-user',
 345              'core:i/user' => 'fa-user',
 346              'core:i/users' => 'fa-users',
 347              'core:i/valid' => 'fa-check text-success',
 348              'core:i/warning' => 'fa-exclamation text-warning',
 349              'core:i/window_close' => 'fa-window-close',
 350              'core:i/withsubcat' => 'fa-plus-square',
 351              'core:i/language' => 'fa-language',
 352              'core:m/USD' => 'fa-usd',
 353              'core:t/addcontact' => 'fa-address-card',
 354              'core:t/add' => 'fa-plus',
 355              'core:t/angles-down' => 'fa-angles-down',
 356              'core:t/angles-left' => 'fa-angles-left',
 357              'core:t/angles-right' => 'fa-angles-right',
 358              'core:t/angles-up' => 'fa-angles-up',
 359              'core:t/approve' => 'fa-thumbs-up',
 360              'core:t/assignroles' => 'fa-user-circle',
 361              'core:t/award' => 'fa-trophy',
 362              'core:t/backpack' => 'fa-shopping-bag',
 363              'core:t/backup' => 'fa-arrow-circle-down',
 364              'core:t/block' => 'fa-ban',
 365              'core:t/block_to_dock_rtl' => 'fa-chevron-right',
 366              'core:t/block_to_dock' => 'fa-chevron-left',
 367              'core:t/blocks_drawer' => 'fa-chevron-left',
 368              'core:t/blocks_drawer_rtl' => 'fa-chevron-right',
 369              'core:t/calc_off' => 'fa-calculator', // TODO: Change to better icon once we have stacked icon support or more icons.
 370              'core:t/calc' => 'fa-calculator',
 371              'core:t/check' => 'fa-check',
 372              'core:t/clipboard' => 'fa-clipboard',
 373              'core:t/cohort' => 'fa-users',
 374              'core:t/collapsed_empty_rtl' => 'fa-caret-square-o-left',
 375              'core:t/collapsed_empty' => 'fa-caret-square-o-right',
 376              'core:t/collapsed_rtl' => 'fa-caret-left',
 377              'core:t/collapsed' => 'fa-caret-right',
 378              'core:t/collapsedcaret' => 'fa-caret-right',
 379              'core:t/collapsedchevron' => 'fa-chevron-right',
 380              'core:t/collapsedchevron_rtl' => 'fa-chevron-left',
 381              'core:t/collapsedchevron_up' => 'fa-chevron-up',
 382              'core:t/completion_complete' => 'fa-circle',
 383              'core:t/completion_fail' => 'fa-times',
 384              'core:t/completion_incomplete' => 'fa-circle-thin',
 385              'core:t/contextmenu' => 'fa-cog',
 386              'core:t/copy' => 'fa-copy',
 387              'core:t/delete' => 'fa-trash',
 388              'core:t/dockclose' => 'fa-window-close',
 389              'core:t/dock_to_block_rtl' => 'fa-chevron-right',
 390              'core:t/dock_to_block' => 'fa-chevron-left',
 391              'core:t/download' => 'fa-download',
 392              'core:t/down' => 'fa-arrow-down',
 393              'core:t/downlong' => 'fa-long-arrow-down',
 394              'core:t/dropdown' => 'fa-cog',
 395              'core:t/editinline' => 'fa-pencil',
 396              'core:t/edit_menu' => 'fa-cog',
 397              'core:t/editstring' => 'fa-pencil',
 398              'core:t/edit' => 'fa-cog',
 399              'core:t/emailno' => 'fa-ban',
 400              'core:t/email' => 'fa-envelope-o',
 401              'core:t/emptystar' => 'fa-star-o',
 402              'core:t/enrolusers' => 'fa-user-plus',
 403              'core:t/expanded' => 'fa-caret-down',
 404              'core:t/expandedchevron' => 'fa-chevron-down',
 405              'core:t/go' => 'fa-play',
 406              'core:t/grades' => 'fa-table',
 407              'core:t/groupn' => 'fa-user',
 408              'core:t/groups' => 'fa-user-circle',
 409              'core:t/groupv' => 'fa-user-circle-o',
 410              'core:t/hide' => 'fa-eye',
 411              'core:t/index_drawer' => 'fa-list',
 412              'core:t/left' => 'fa-arrow-left',
 413              'core:t/less' => 'fa-caret-up',
 414              'core:t/life-ring' => 'fa-life-ring',
 415              'core:t/locked' => 'fa-lock',
 416              'core:t/lock' => 'fa-unlock',
 417              'core:t/locktime' => 'fa-lock',
 418              'core:t/markasread' => 'fa-check',
 419              'core:t/messages' => 'fa-comments',
 420              'core:t/messages-o' => 'fa-comments-o',
 421              'core:t/message' => 'fa-comment-o',
 422              'core:t/more' => 'fa-caret-down',
 423              'core:t/move' => 'fa-arrows-v',
 424              'core:t/online' => 'fa-circle',
 425              'core:t/passwordunmask-edit' => 'fa-pencil',
 426              'core:t/passwordunmask-reveal' => 'fa-eye',
 427              'core:t/play' => 'fa-play',
 428              'core:t/portfolioadd' => 'fa-plus',
 429              'core:t/preferences' => 'fa-wrench',
 430              'core:t/preview' => 'fa-search-plus',
 431              'core:t/print' => 'fa-print',
 432              'core:t/removecontact' => 'fa-user-times',
 433              'core:t/reload' => 'fa-refresh',
 434              'core:t/reset' => 'fa-repeat',
 435              'core:t/restore' => 'fa-arrow-circle-up',
 436              'core:t/right' => 'fa-arrow-right',
 437              'core:t/sendmessage' => 'fa-paper-plane',
 438              'core:t/show' => 'fa-eye-slash',
 439              'core:t/sort_by' => 'fa-sort-amount-asc',
 440              'core:t/sort_asc' => 'fa-sort-asc',
 441              'core:t/sort_desc' => 'fa-sort-desc',
 442              'core:t/sort' => 'fa-sort',
 443              'core:t/stealth' => 'fa-low-vision',
 444              'core:t/stop' => 'fa-stop',
 445              'core:t/switch_minus' => 'fa-minus',
 446              'core:t/switch_plus' => 'fa-plus',
 447              'core:t/switch_whole' => 'fa-square-o',
 448              'core:t/tags' => 'fa-tags',
 449              'core:t/unblock' => 'fa-commenting',
 450              'core:t/unlocked' => 'fa-unlock-alt',
 451              'core:t/unlock' => 'fa-lock',
 452              'core:t/up' => 'fa-arrow-up',
 453              'core:t/uplong' => 'fa-long-arrow-up',
 454              'core:t/user' => 'fa-user',
 455              'core:t/viewdetails' => 'fa-list',
 456          ];
 457      }
 458  
 459      /**
 460       * Overridable function to get a mapping of all icons.
 461       * Default is to do no mapping.
 462       */
 463      public function get_icon_name_map() {
 464          if ($this->map === []) {
 465              $cache = \cache::make('core', 'fontawesomeiconmapping');
 466  
 467              // Create different mapping keys for different icon system classes, there may be several different
 468              // themes on the same site.
 469              $mapkey = 'mapping_'.preg_replace('/[^a-zA-Z0-9_]/', '_', get_class($this));
 470              $this->map = $cache->get($mapkey);
 471  
 472              if (empty($this->map)) {
 473                  $this->map = $this->get_core_icon_map();
 474                  $callback = 'get_fontawesome_icon_map';
 475  
 476                  if ($pluginsfunction = get_plugins_with_function($callback)) {
 477                      foreach ($pluginsfunction as $plugintype => $plugins) {
 478                          foreach ($plugins as $pluginfunction) {
 479                              $pluginmap = $pluginfunction();
 480                              $this->map += $pluginmap;
 481                          }
 482                      }
 483                  }
 484                  $cache->set($mapkey, $this->map);
 485              }
 486  
 487          }
 488          return $this->map;
 489      }
 490  
 491  
 492      public function get_amd_name() {
 493          return 'core/icon_system_fontawesome';
 494      }
 495  
 496      public function render_pix_icon(renderer_base $output, pix_icon $icon) {
 497          $subtype = 'pix_icon_fontawesome';
 498          $subpix = new $subtype($icon);
 499  
 500          $data = $subpix->export_for_template($output);
 501  
 502          if (!$subpix->is_mapped()) {
 503              $data['unmappedIcon'] = $icon->export_for_template($output);
 504          }
 505          if (isset($icon->attributes['aria-hidden'])) {
 506              $data['aria-hidden'] = $icon->attributes['aria-hidden'];
 507          }
 508  
 509          // Flip question mark icon orientation when the `questioniconfollowlangdirection` lang config string is set to `yes`.
 510          $isquestionicon = strpos($data['key'], 'fa-question') !== false;
 511          if ($isquestionicon && right_to_left() && get_string('questioniconfollowlangdirection', 'langconfig') === 'yes') {
 512              $data['extraclasses'] = "fa-flip-horizontal";
 513          }
 514  
 515          return $output->render_from_template('core/pix_icon_fontawesome', $data);
 516      }
 517  
 518  }