Merge "Allow extensions to register additional namespaces in extension.json"

extension.json

@@ -39,6 +39,9 @@
 			"Models": {
 				"sanitized-css": "css"
 			}
+		},
+		"TemplateStyles": {
+			"Namespaces": []
 		}
 	},
 	"callback": "TemplateStylesHooks::onRegistration",

includes/TemplateStylesHooks.php

@@ -227,7 +227,15 @@ class TemplateStylesHooks {
 	 * @return bool
 	 */
 	public static function onContentHandlerDefaultModelFor( $title, &$model ) {
-		$enabledNamespaces = self::getConfig()->get( 'TemplateStylesNamespaces' );
+		// Allow overwriting attributes with config settings.
+		// Attributes can not use namespaces as keys, as processing them does not preserve
+		// integer keys.
+		$enabledNamespaces = self::getConfig()->get( 'TemplateStylesNamespaces' ) +
+			array_fill_keys(
+				ExtensionRegistry::getInstance()->getAttribute( 'TemplateStylesNamespaces' ),
+				true
+			);
+
 		if ( !empty( $enabledNamespaces[$title->getNamespace()] ) &&
 			$title->isSubpage() && substr( $title->getText(), -4 ) === '.css'
 		) {

tests/phpunit/TemplateStylesHooksTest.php

@@ -117,10 +117,27 @@ class TemplateStylesHooksTest extends MediaWikiLangTestCase {
 	 */
 	public function testOnContentHandlerDefaultModelFor( $ns, $title, $expect ) {
 		$this->setMwGlobals( [
-			'wgTemplateStylesNamespaces' => [ 10 => true, 2 => false, 3000 => true, 3002 => true ],
-			'wgNamespacesWithSubpages' => [ 10 => true, 2 => true, 3000 => true, 3002 => false ],
+			'wgTemplateStylesNamespaces' => [
+				10 => true,
+				2 => false,
+				3000 => true,
+				3002 => true,
+				3006 => false,
+			],
+			'wgNamespacesWithSubpages' => [
+				10 => true,
+				2 => true,
+				3000 => true,
+				3002 => false,
+				3004 => true,
+				3006 => true
+			],
 		] );
 
+		$reset = ExtensionRegistry::getInstance()->setAttributeForTest(
+			'TemplateStylesNamespaces', [ 3004, 3006 ]
+		);
+
 		$model = 'unchanged';
 		$ret = TemplateStylesHooks::onContentHandlerDefaultModelFor(
 			Title::makeTitle( $ns, $title ), $model
@@ -138,6 +155,8 @@ class TemplateStylesHooksTest extends MediaWikiLangTestCase {
 			[ 3000, 'Test/test.css', true ],
 			[ 3002, 'Test/test.css', false ],
 			[ 2, 'Test/test.css', false ],
+			[ 3004, 'Test/test.css', true ],
+			[ 3006, 'Test/test.css', false ],
 		];
 	}