includes/resourceloader/ResourceLoaderSkinModule.php

   1 <?php
   2 /**
   3  * Resource loader 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 $context ResourceLoaderContext
  30          * @return array
  31          */
  32         public function getStyles( ResourceLoaderContext $context ) {
  33                 $logo = $this->getConfig()->get( 'Logo' );
  34                 $logoHD = $this->getConfig()->get( 'LogoHD' );
  35                 $styles = parent::getStyles( $context );
  36                 $styles['all'][] = '.mw-wiki-logo { background-image: ' .
  37                         CSSMin::buildUrlValue( $logo ) .
  38                         '; }';
  39                 if ( $logoHD ) {
  40                         if ( isset( $logoHD['1.5x'] ) ) {
  41                                 $styles[
  42                                         '(-webkit-min-device-pixel-ratio: 1.5), ' .
  43                                         '(min--moz-device-pixel-ratio: 1.5), ' .
  44                                         '(min-resolution: 1.5dppx), ' .
  45                                         '(min-resolution: 144dpi)'
  46                                 ][] = '.mw-wiki-logo { background-image: ' .
  47                                 CSSMin::buildUrlValue( $logoHD['1.5x'] ) . ';' .
  48                                 'background-size: 135px auto; }';
  49                         }
  50                         if ( isset( $logoHD['2x'] ) ) {
  51                                 $styles[
  52                                         '(-webkit-min-device-pixel-ratio: 2), ' .
  53                                         '(min--moz-device-pixel-ratio: 2),' .
  54                                         '(min-resolution: 2dppx), ' .
  55                                         '(min-resolution: 192dpi)'
  56                                 ][] = '.mw-wiki-logo { background-image: ' .
  57                                 CSSMin::buildUrlValue( $logoHD['2x'] ) . ';' .
  58                                 'background-size: 135px auto; }';
  59                         }
  60                 }
  61                 return $styles;
  62         }
  63
  64         /**
  65          * @param $context ResourceLoaderContext
  66          * @return bool
  67          */
  68         public function isKnownEmpty( ResourceLoaderContext $context ) {
  69                 // Regardless of whether the files are specified, we always
  70                 // provide mw-wiki-logo styles.
  71                 return false;
  72         }
  73
  74         /**
  75          * @param $context ResourceLoaderContext
  76          * @return string: Hash
  77          */
  78         public function getModifiedHash( ResourceLoaderContext $context ) {
  79                 $logo = $this->getConfig()->get( 'Logo' );
  80                 $logoHD = $this->getConfig()->get( 'LogoHD' );
  81                 return md5( parent::getModifiedHash( $context ) . $logo . json_encode( $logoHD ) );
  82         }
  83 }