includes/ResourceLoader/OOUIImageModule.php
<?php
/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
namespace MediaWiki\ResourceLoader;
use LogicException;
/**
* Loads the module definition from JSON files in the format that OOUI uses, converting it to the
* format we use. (Previously known as secret special sauce.)
*
* @since 1.26
*/
class OOUIImageModule extends ImageModule {
use OOUIModule;
protected function loadFromDefinition() {
if ( $this->definition === null ) {
// Do nothing if definition was already processed
return;
}
$themes = self::getSkinThemeMap();
// For backwards-compatibility, allow missing 'themeImages'
$module = $this->definition['themeImages'] ?? '';
$definition = [];
foreach ( $themes as $skin => $theme ) {
$data = $this->loadOOUIDefinition( $theme, $module );
if ( !$data ) {
// If there's no file for this module of this theme, that's okay, it will just use the defaults
continue;
}
// Convert into a definition compatible with the parent vanilla ImageModule
foreach ( $data as $key => $value ) {
switch ( $key ) {
// Images and color variants are defined per-theme, here converted to per-skin
case 'images':
case 'variants':
$definition[$key][$skin] = $value;
break;
// Other options must be identical for each theme (or only defined in the default one)
default:
if ( !isset( $definition[$key] ) ) {
$definition[$key] = $value;
} elseif ( $definition[$key] !== $value ) {
throw new LogicException(
"Mismatched OOUI theme images definition: " .
"key '$key' of theme '$theme' for module '$module' " .
"does not match other themes"
);
}
break;
}
}
}
// Extra selectors to allow using the same icons for old-style MediaWiki UI code
if ( str_starts_with( $module, 'icons' ) ) {
$definition['selectorWithoutVariant'] = '.oo-ui-icon-{name}, .mw-ui-icon-{name}:before';
$definition['selectorWithVariant'] = '.oo-ui-image-{variant}.oo-ui-icon-{name}, ' .
'.mw-ui-icon-{name}-{variant}:before';
}
// Fields from module definition silently override keys from JSON files
$this->definition += $definition;
parent::loadFromDefinition();
}
/**
* Load the module definition from the JSON file(s) for the given theme and module.
*
* @since 1.34
* @param string $theme
* @param string $module
* @return array|false
* @suppress PhanTypeArraySuspiciousNullable
*/
protected function loadOOUIDefinition( $theme, $module ) {
// Find the path to the JSON file which contains the actual image definitions for this theme
if ( $module ) {
$dataPath = $this->getThemeImagesPath( $theme, $module );
} else {
// Backwards-compatibility for things that probably shouldn't have used this class...
$dataPath =
$this->definition['rootPath'] . '/' .
strtolower( $theme ) . '/' .
$this->definition['name'] . '.json';
}
return $this->readJSONFile( $dataPath );
}
/**
* Read JSON from a file, and transform all paths in it to be relative to the module's base path.
*
* @since 1.34
* @param string $dataPath Path relative to the module's base bath
* @return array|false
*/
protected function readJSONFile( $dataPath ) {
$localDataPath = $this->getLocalPath( $dataPath );
if ( !file_exists( $localDataPath ) ) {
return false;
}
$data = json_decode( file_get_contents( $localDataPath ), true );
// Expand the paths to images (since they are relative to the JSON file that defines them, not
// our base directory)
$fixPath = static function ( &$path ) use ( $dataPath ) {
if ( $dataPath instanceof FilePath ) {
$path = new FilePath(
dirname( $dataPath->getPath() ) . '/' . $path,
$dataPath->getLocalBasePath(),
$dataPath->getRemoteBasePath()
);
} else {
$path = dirname( $dataPath ) . '/' . $path;
}
};
// @phan-suppress-next-line PhanTypeArraySuspiciousNullable
array_walk( $data['images'], static function ( &$value ) use ( $fixPath ) {
if ( is_string( $value['file'] ) ) {
$fixPath( $value['file'] );
} elseif ( is_array( $value['file'] ) ) {
array_walk_recursive( $value['file'], $fixPath );
}
} );
return $data;
}
}