includes/resourceloader/ResourceLoaderSkinModule.php

   1 <?php
   2 /**
   3  * ResourceLoader module for skin stylesheets.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @author Timo Tijhof
  22  */
  23
  24 class ResourceLoaderSkinModule extends ResourceLoaderFileModule {
  25
  26         /* Methods */
  27
  28         /**
  29          * @param ResourceLoaderContext $context
  30          * @return array
  31          */
  32         public function getStyles( ResourceLoaderContext $context ) {
  33                 $conf = $this->getConfig();
  34                 $logo = $conf->get( 'Logo' );
  35                 $logoHD = $conf->get( 'LogoHD' );
  36
  37                 $logo1 = OutputPage::transformResourcePath( $conf, $logo );
  38                 $logo15 = OutputPage::transformResourcePath( $conf, $logoHD['1.5x'] );
  39                 $logo2 = OutputPage::transformResourcePath( $conf, $logoHD['2x'] );
  40
  41                 $styles = parent::getStyles( $context );
  42                 $styles['all'][] = '.mw-wiki-logo { background-image: ' .
  43                         CSSMin::buildUrlValue( $logo1 ) .
  44                         '; }';
  45                 if ( $logoHD ) {
  46                         if ( isset( $logoHD['1.5x'] ) ) {
  47                                 $styles[
  48                                         '(-webkit-min-device-pixel-ratio: 1.5), ' .
  49                                         '(min--moz-device-pixel-ratio: 1.5), ' .
  50                                         '(min-resolution: 1.5dppx), ' .
  51                                         '(min-resolution: 144dpi)'
  52                                 ][] = '.mw-wiki-logo { background-image: ' .
  53                                 CSSMin::buildUrlValue( $logo15 ) . ';' .
  54                                 'background-size: 135px auto; }';
  55                         }
  56                         if ( isset( $logoHD['2x'] ) ) {
  57                                 $styles[
  58                                         '(-webkit-min-device-pixel-ratio: 2), ' .
  59                                         '(min--moz-device-pixel-ratio: 2),' .
  60                                         '(min-resolution: 2dppx), ' .
  61                                         '(min-resolution: 192dpi)'
  62                                 ][] = '.mw-wiki-logo { background-image: ' .
  63                                 CSSMin::buildUrlValue( $logo2 ) . ';' .
  64                                 'background-size: 135px auto; }';
  65                         }
  66                 }
  67                 return $styles;
  68         }
  69
  70         /**
  71          * @param ResourceLoaderContext $context
  72          * @return bool
  73          */
  74         public function isKnownEmpty( ResourceLoaderContext $context ) {
  75                 // Regardless of whether the files are specified, we always
  76                 // provide mw-wiki-logo styles.
  77                 return false;
  78         }
  79
  80         /**
  81          * @param ResourceLoaderContext $context
  82          * @return string: Hash
  83          */
  84         public function getModifiedHash( ResourceLoaderContext $context ) {
  85                 $logo = $this->getConfig()->get( 'Logo' );
  86                 $logoHD = $this->getConfig()->get( 'LogoHD' );
  87                 return md5( parent::getModifiedHash( $context ) . $logo . json_encode( $logoHD ) );
  88         }
  89 }