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          * All skins are assumed to be compatible with mobile
  27          */
  28         public $targets = [ 'desktop', 'mobile' ];
  29
  30         /**
  31          * @param ResourceLoaderContext $context
  32          * @return array
  33          */
  34         public function getStyles( ResourceLoaderContext $context ) {
  35                 $logo = $this->getLogo( $this->getConfig() );
  36                 $styles = parent::getStyles( $context );
  37
  38                 $default = !is_array( $logo ) ? $logo : $logo['1x'];
  39                 $styles['all'][] = '.mw-wiki-logo { background-image: ' .
  40                                 CSSMin::buildUrlValue( $default ) .
  41                                 '; }';
  42
  43                 if ( is_array( $logo ) ) {
  44                         if ( isset( $logo['1.5x'] ) ) {
  45                                 $styles[
  46                                         '(-webkit-min-device-pixel-ratio: 1.5), ' .
  47                                         '(min--moz-device-pixel-ratio: 1.5), ' .
  48                                         '(min-resolution: 1.5dppx), ' .
  49                                         '(min-resolution: 144dpi)'
  50                                 ][] = '.mw-wiki-logo { background-image: ' .
  51                                 CSSMin::buildUrlValue( $logo['1.5x'] ) . ';' .
  52                                 'background-size: 135px auto; }';
  53                         }
  54                         if ( isset( $logo['2x'] ) ) {
  55                                 $styles[
  56                                         '(-webkit-min-device-pixel-ratio: 2), ' .
  57                                         '(min--moz-device-pixel-ratio: 2),' .
  58                                         '(min-resolution: 2dppx), ' .
  59                                         '(min-resolution: 192dpi)'
  60                                 ][] = '.mw-wiki-logo { background-image: ' .
  61                                 CSSMin::buildUrlValue( $logo['2x'] ) . ';' .
  62                                 'background-size: 135px auto; }';
  63                         }
  64                 }
  65
  66                 return $styles;
  67         }
  68
  69         /**
  70          * @param Config $conf
  71          * @return string|array Single url if no variants are defined
  72          *  or array of logo urls keyed by dppx in form "<float>x".
  73          *  Key "1x" is always defined.
  74          */
  75         public static function getLogo( Config $conf ) {
  76                 $logo = $conf->get( 'Logo' );
  77                 $logoHD = $conf->get( 'LogoHD' );
  78
  79                 $logo1Url = OutputPage::transformResourcePath( $conf, $logo );
  80
  81                 if ( !$logoHD ) {
  82                         return $logo1Url;
  83                 }
  84
  85                 $logoUrls = [
  86                         '1x' => $logo1Url,
  87                 ];
  88
  89                 // Only 1.5x and 2x are supported
  90                 if ( isset( $logoHD['1.5x'] ) ) {
  91                         $logoUrls['1.5x'] = OutputPage::transformResourcePath(
  92                                 $conf,
  93                                 $logoHD['1.5x']
  94                         );
  95                 }
  96                 if ( isset( $logoHD['2x'] ) ) {
  97                         $logoUrls['2x'] = OutputPage::transformResourcePath(
  98                                 $conf,
  99                                 $logoHD['2x']
 100                         );
 101                 }
 102
 103                 return $logoUrls;
 104         }
 105
 106         /**
 107          * @param ResourceLoaderContext $context
 108          * @return bool
 109          */
 110         public function isKnownEmpty( ResourceLoaderContext $context ) {
 111                 // Regardless of whether the files are specified, we always
 112                 // provide mw-wiki-logo styles.
 113                 return false;
 114         }
 115
 116         public function getDefinitionSummary( ResourceLoaderContext $context ) {
 117                 $summary = parent::getDefinitionSummary( $context );
 118                 $summary[] = [
 119                         'logo' => $this->getConfig()->get( 'Logo' ),
 120                         'logoHD' => $this->getConfig()->get( 'LogoHD' ),
 121                 ];
 122                 return $summary;
 123         }
 124 }