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| 1 | <?php |
| 2 | |
| 3 | namespace Kartographer\Tag; |
| 4 | |
| 5 | use Kartographer\Special\SpecialMap; |
| 6 | use MediaWiki\Config\Config; |
| 7 | use MediaWiki\Json\FormatJson; |
| 8 | use MediaWiki\MainConfigNames; |
| 9 | |
| 10 | /** |
| 11 | * @license MIT |
| 12 | */ |
| 13 | class MapFrameAttributeGenerator { |
| 14 | |
| 15 | private const ALIGN_CLASSES = [ |
| 16 | 'left' => 'floatleft', |
| 17 | 'center' => 'center', |
| 18 | 'right' => 'floatright', |
| 19 | ]; |
| 20 | |
| 21 | public readonly string $cssWidth; |
| 22 | |
| 23 | public function __construct( |
| 24 | private readonly MapTagArgumentValidator $args, |
| 25 | private readonly Config $config, |
| 26 | ) { |
| 27 | if ( $this->args->width === 'full' ) { |
| 28 | $this->cssWidth = '100%'; |
| 29 | } else { |
| 30 | $this->cssWidth = $this->args->width . 'px'; |
| 31 | } |
| 32 | } |
| 33 | |
| 34 | /** |
| 35 | * @return string[] |
| 36 | */ |
| 37 | private function getContainerClasses(): array { |
| 38 | return [ |
| 39 | 'mw-kartographer-container', |
| 40 | ...( $this->args->width === 'full' ? [ 'mw-kartographer-full' ] : [] ), |
| 41 | ]; |
| 42 | } |
| 43 | |
| 44 | /** |
| 45 | * @return string[] |
| 46 | */ |
| 47 | public function getThumbClasses(): array { |
| 48 | return [ |
| 49 | ...$this->getContainerClasses(), |
| 50 | 'mw-halign-' . $this->args->align, |
| 51 | 'noviewer', |
| 52 | ]; |
| 53 | } |
| 54 | |
| 55 | public function prepareAttrs(): array { |
| 56 | // T359082: Temporarily disable dark mode unless we have a better idea |
| 57 | $class = [ 'mw-kartographer-map', 'notheme' ]; |
| 58 | if ( $this->args->frameless ) { |
| 59 | $class[] = 'noviewer'; |
| 60 | } |
| 61 | $class[] = 'mw-file-description'; |
| 62 | |
| 63 | $attrs = [ |
| 64 | 'class' => $class, |
| 65 | // We need dimensions for when there is no img (editpreview or no staticmap) |
| 66 | // because an <img> element with permanent failing src has either: |
| 67 | // - intrinsic dimensions of 0x0, when alt='' |
| 68 | // - intrinsic dimensions of alt size |
| 69 | 'style' => "min-width: $this->cssWidth; min-height: {$this->args->height}px;", |
| 70 | // Attributes starting with "data-mw" are banned from user content in Sanitizer; |
| 71 | // we add such an attribute here (by default empty) so that its presence can be |
| 72 | // checked later to guarantee that they were generated by Kartographer |
| 73 | // Warning: This attribute is also checked in Wikibase and should be modified there as |
| 74 | // well if necessary! |
| 75 | 'data-mw-kartographer' => 'mapframe', |
| 76 | 'data-style' => $this->args->mapStyle, |
| 77 | 'data-width' => $this->args->width, |
| 78 | 'data-height' => $this->args->height, |
| 79 | ]; |
| 80 | |
| 81 | if ( $this->args->zoom !== null ) { |
| 82 | $attrs['data-zoom'] = $this->args->zoom; |
| 83 | } |
| 84 | |
| 85 | if ( $this->args->hasCoordinates() ) { |
| 86 | $attrs['data-lat'] = $this->args->lat; |
| 87 | $attrs['data-lon'] = $this->args->lon; |
| 88 | } |
| 89 | |
| 90 | if ( $this->args->specifiedLangCode !== null ) { |
| 91 | $attrs['data-lang'] = $this->args->specifiedLangCode; |
| 92 | } |
| 93 | |
| 94 | if ( $this->args->showGroups ) { |
| 95 | $attrs['data-overlays'] = FormatJson::encode( $this->args->showGroups, false, |
| 96 | FormatJson::ALL_OK ); |
| 97 | } |
| 98 | |
| 99 | $attrs['href'] = SpecialMap::link( $this->args->lat, $this->args->lon, $this->args->zoom, |
| 100 | $this->args->getLanguageCodeWithDefaultFallback() ); |
| 101 | |
| 102 | if ( $this->args->frameless ) { |
| 103 | $attrs['class'] = [ |
| 104 | ...$attrs['class'], |
| 105 | ...$this->getContainerClasses(), |
| 106 | ...(array)( self::ALIGN_CLASSES[$this->args->align] ?? [] ), |
| 107 | ]; |
| 108 | } |
| 109 | |
| 110 | return $attrs; |
| 111 | } |
| 112 | |
| 113 | /** |
| 114 | * @param bool $serverMayRenderOverlays If the map server should attempt to render GeoJSON |
| 115 | * overlays via their group id |
| 116 | * @param string $pagetitle |
| 117 | * @param ?int $revisionId |
| 118 | * @return array |
| 119 | */ |
| 120 | public function prepareImgAttrs( |
| 121 | bool $serverMayRenderOverlays, string $pagetitle, ?int $revisionId, string $parser |
| 122 | ): array { |
| 123 | $mapServer = $this->config->get( 'KartographerMapServer' ); |
| 124 | $fullWidth = $this->config->get( 'KartographerStaticFullWidth' ); |
| 125 | $staticWidth = $this->args->width === 'full' ? $fullWidth : (int)$this->args->width; |
| 126 | |
| 127 | $imgUrlParams = [ |
| 128 | 'lang' => $this->args->getLanguageCodeWithDefaultFallback(), |
| 129 | ]; |
| 130 | if ( $this->args->showGroups && $serverMayRenderOverlays ) { |
| 131 | // Groups are not available to the static map renderer |
| 132 | // before the page was saved, can only be applied via JS |
| 133 | $imgUrlParams += |
| 134 | self::getUrlAttrs( $this->config, $pagetitle, $revisionId, $this->args->showGroups, $parser ); |
| 135 | } |
| 136 | |
| 137 | $imgUrl = "$mapServer/img/{$this->args->mapStyle}," . |
| 138 | ( $this->args->zoom ?? 'a' ) . ',' . |
| 139 | ( $this->args->lat ?? 'a' ) . ',' . |
| 140 | ( $this->args->lon ?? 'a' ) . |
| 141 | ",{$staticWidth}x{$this->args->height}"; |
| 142 | |
| 143 | $imgAttrs = [ |
| 144 | 'class' => 'mw-file-element', |
| 145 | 'src' => "$imgUrl.png?" . wfArrayToCgi( $imgUrlParams ), |
| 146 | 'width' => $staticWidth, |
| 147 | 'height' => $this->args->height, |
| 148 | 'decoding' => 'async', |
| 149 | ]; |
| 150 | |
| 151 | $srcSet = $this->getSrcSet( $imgUrl, $imgUrlParams ); |
| 152 | if ( $srcSet ) { |
| 153 | $imgAttrs['srcset'] = $srcSet; |
| 154 | } |
| 155 | |
| 156 | if ( $this->args->alt !== '' ) { |
| 157 | $imgAttrs['alt'] = $this->args->alt; |
| 158 | } |
| 159 | |
| 160 | return $imgAttrs; |
| 161 | } |
| 162 | |
| 163 | public static function getUrlAttrs( |
| 164 | Config $config, string $title, ?int $revId, array $groupId, string $parser |
| 165 | ): array { |
| 166 | return [ |
| 167 | 'domain' => $config->get( 'KartographerMediaWikiInternalUrl' ) ?? |
| 168 | $config->get( MainConfigNames::ServerName ), |
| 169 | 'title' => $title, |
| 170 | 'revid' => $revId, |
| 171 | 'groups' => implode( ',', $groupId ), |
| 172 | 'parser' => $parser |
| 173 | ]; |
| 174 | } |
| 175 | |
| 176 | private function getSrcSet( string $imgUrl, array $imgUrlParams = [] ): ?string { |
| 177 | $scales = $this->config->get( 'KartographerSrcsetScales' ); |
| 178 | if ( !$scales || !$this->config->get( MainConfigNames::ResponsiveImages ) ) { |
| 179 | return null; |
| 180 | } |
| 181 | |
| 182 | // For now only support 2x, not 1.5. Saves some bytes... |
| 183 | $scales = array_intersect( $scales, [ 2 ] ); |
| 184 | $srcSets = []; |
| 185 | foreach ( $scales as $scale ) { |
| 186 | $scaledImgUrl = "$imgUrl@{$scale}x.png?" . wfArrayToCgi( $imgUrlParams ); |
| 187 | $srcSets[] = "$scaledImgUrl {$scale}x"; |
| 188 | } |
| 189 | return implode( ', ', $srcSets ) ?: null; |
| 190 | } |
| 191 | } |