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Differences Between: [Versions 39 and 310] [Versions 39 and 311] [Versions 39 and 400] [Versions 39 and 401] [Versions 39 and 402] [Versions 39 and 403]

   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   * Theme functions.
  19   *
  20   * @package    theme_boost
  21   * @copyright  2016 Frédéric Massart - FMCorz.net
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  defined('MOODLE_INTERNAL') || die();
  26  
  27  /**
  28   * Post process the CSS tree.
  29   *
  30   * @param string $tree The CSS tree.
  31   * @param theme_config $theme The theme config object.
  32   */
  33  function theme_boost_css_tree_post_processor($tree, $theme) {
  34      $prefixer = new theme_boost\autoprefixer($tree);
  35      $prefixer->prefix();
  36  }
  37  
  38  /**
  39   * Inject additional SCSS.
  40   *
  41   * @param theme_config $theme The theme config object.
  42   * @return string
  43   */
  44  function theme_boost_get_extra_scss($theme) {
  45      $content = '';
  46      $imageurl = $theme->setting_file_url('backgroundimage', 'backgroundimage');
  47  
  48      // Sets the background image, and its settings.
  49      if (!empty($imageurl)) {
  50          $content .= 'body { ';
  51          $content .= "background-image: url('$imageurl'); background-size: cover;";
  52          $content .= ' }';
  53      }
  54  
  55      // Always return the background image with the scss when we have it.
  56      return !empty($theme->settings->scss) ? $theme->settings->scss . ' ' . $content : $content;
  57  }
  58  
  59  /**
  60   * Serves any files associated with the theme settings.
  61   *
  62   * @param stdClass $course
  63   * @param stdClass $cm
  64   * @param context $context
  65   * @param string $filearea
  66   * @param array $args
  67   * @param bool $forcedownload
  68   * @param array $options
  69   * @return bool
  70   */
  71  function theme_boost_pluginfile($course, $cm, $context, $filearea, $args, $forcedownload, array $options = array()) {
  72      if ($context->contextlevel == CONTEXT_SYSTEM && ($filearea === 'logo' || $filearea === 'backgroundimage')) {
  73          $theme = theme_config::load('boost');
  74          // By default, theme files must be cache-able by both browsers and proxies.
  75          if (!array_key_exists('cacheability', $options)) {
  76              $options['cacheability'] = 'public';
  77          }
  78          return $theme->setting_file_serve($filearea, $args, $forcedownload, $options);
  79      } else {
  80          send_file_not_found();
  81      }
  82  }
  83  
  84  /**
  85   * Returns the main SCSS content.
  86   *
  87   * @param theme_config $theme The theme config object.
  88   * @return string
  89   */
  90  function theme_boost_get_main_scss_content($theme) {
  91      global $CFG;
  92  
  93      $scss = '';
  94      $filename = !empty($theme->settings->preset) ? $theme->settings->preset : null;
  95      $fs = get_file_storage();
  96  
  97      $context = context_system::instance();
  98      if ($filename == 'default.scss') {
  99          $scss .= file_get_contents($CFG->dirroot . '/theme/boost/scss/preset/default.scss');
 100      } else if ($filename == 'plain.scss') {
 101          $scss .= file_get_contents($CFG->dirroot . '/theme/boost/scss/preset/plain.scss');
 102      } else if ($filename && ($presetfile = $fs->get_file($context->id, 'theme_boost', 'preset', 0, '/', $filename))) {
 103          $scss .= $presetfile->get_content();
 104      } else {
 105          // Safety fallback - maybe new installs etc.
 106          $scss .= file_get_contents($CFG->dirroot . '/theme/boost/scss/preset/default.scss');
 107      }
 108  
 109      return $scss;
 110  }
 111  
 112  /**
 113   * Get compiled css.
 114   *
 115   * @return string compiled css
 116   */
 117  function theme_boost_get_precompiled_css() {
 118      global $CFG;
 119      return file_get_contents($CFG->dirroot . '/theme/boost/style/moodle.css');
 120  }
 121  
 122  /**
 123   * Get SCSS to prepend.
 124   *
 125   * @param theme_config $theme The theme config object.
 126   * @return array
 127   */
 128  function theme_boost_get_pre_scss($theme) {
 129      global $CFG;
 130  
 131      $scss = '';
 132      $configurable = [
 133          // Config key => [variableName, ...].
 134          'brandcolor' => ['primary'],
 135      ];
 136  
 137      // Prepend variables first.
 138      foreach ($configurable as $configkey => $targets) {
 139          $value = isset($theme->settings->{$configkey}) ? $theme->settings->{$configkey} : null;
 140          if (empty($value)) {
 141              continue;
 142          }
 143          array_map(function($target) use (&$scss, $value) {
 144              $scss .= '$' . $target . ': ' . $value . ";\n";
 145          }, (array) $targets);
 146      }
 147  
 148      // Prepend pre-scss.
 149      if (!empty($theme->settings->scsspre)) {
 150          $scss .= $theme->settings->scsspre;
 151      }
 152  
 153      return $scss;
 154  }