lib/classes/rtlcss.php

   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  * Moodle implementation of RTLCSS.
  19  *
  20  * @package    core
  21  * @copyright  2016 Frédéric Massart
  22  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 defined('MOODLE_INTERNAL') || die();
  26
  27 /**
  28  * Moodle RTLCSS class.
  29  *
  30  * @package    core
  31  * @copyright  2016 Frédéric Massart
  32  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  33  */
  34 class core_rtlcss extends \MoodleHQ\RTLCSS\RTLCSS {
  35
  36     /**
  37      * Process a block declaration.
  38      *
  39      * This is overriden in order to provide a backwards compability with the plugins
  40      * who already defined RTL styles the old-fashioned way. Because we do not need
  41      * those any more we rename them so that they do not apply.
  42      *
  43      * @todo Remove the dir-rtl flipping when dir-rtl is fully deprecated.
  44      * @param \Sabberworm\CSS\RuleSet\RuleSet $node The object.
  45      * @return void
  46      */
  47     protected function processDeclaration($node) {
  48         $selectors = $node instanceof \Sabberworm\CSS\RuleSet\DeclarationBlock ? $node->getSelectors() : [];
  49         foreach ($selectors as $selector) {
  50             // The blocks containing .dir-rtl are always accepted as is.
  51             if (strpos($selector->getSelector(), '.dir-rtl') !== false) {
  52                 return;
  53             }
  54         }
  55         return parent::processDeclaration($node);
  56     }
  57
  58 }