Restore Timeless 1.35 support

Change-Id: I882f4d76df4c437ad6cc5883c243ec08a40f34fb

includes/SkinTimeless.php

@@ -5,19 +5,33 @@
  * @ingroup Skins
  */
 class SkinTimeless extends SkinTemplate {
-	/** @var string */
-	public $stylename = 'Timeless';
-
-	/** @var string */
-	public $template = 'TimelessTemplate';
-
 	/**
-	 * @param OutputPage $out
+	 * Provide support for < 1.36. Can be deleted when no longer supported.
+	 * @inheritDoc
 	 */
-	public function initPage( OutputPage $out ) {
-		parent::initPage( $out );
+	public function __construct(
+		array $options = []
+	) {
+		global $wgVersion;
+		$out = $this->getOutput();
 
+		// This code block can be removed when 1.35 is no longer supported.
+		if ( version_compare( $wgVersion, '1.36', '<' ) ) {
+			// Add external links - this is replaced by `content-links` feature in 1.36
+			$out->addModuleStyles( [
+				'mediawiki.skinning.content.externallinks'
+			] );
+			// Make responsive - this is replaced by `responsive` option in 1.36
+			$out->addMeta( 'viewport',
+				'width=device-width, initial-scale=1.0, ' .
+				'user-scalable=yes, minimum-scale=0.25, maximum-scale=5.0'
+			);
+			// Associate template - this is replaced by `template` option in 1.36
+			$this->template = 'TimelessTemplate';
+		}
 		// Basic IE support without flexbox
 		$out->addStyle( $this->stylename . '/resources/IE9fixes.css', 'screen', 'IE' );
+
+		parent::__construct( $options );
 	}
 }

includes/TimelessVariablesModule.php

@@ -3,6 +3,23 @@
  * ResourceLoader module to set some LESS variables for the skin
  */
 class TimelessVariablesModule extends ResourceLoaderSkinModule {
+	/**
+	 * Add compatibility to < 1.36
+	 * @inheritDoc
+	 */
+	public function __construct(
+			array $options = [],
+			$localBasePath = null,
+			$remoteBasePath = null
+	) {
+			global $wgVersion;
+			if ( version_compare( $wgVersion, '1.36', '<' ) ) {
+				$options['features'] = [ "logo", "legacy" ];
+			}
+
+			parent::__construct( $options, $localBasePath, $remoteBasePath );
+	}
+
 	/**
 	 * Add our LESS variables
 	 *

skin.json

@@ -8,7 +8,7 @@
 	"license-name": "GPL-2.0-or-later",
 	"type": "skin",
 	"requires": {
-		"MediaWiki": ">= 1.36"
+		"MediaWiki": ">= 1.35"
 	},
 	"ValidSkinNames": {
 		"timeless": {
@@ -17,6 +17,7 @@
 			"args": [
 				{
 					"name": "timeless",
+					"template": "TimelessTemplate",
 					"responsive": true,
 					"styles": [
 						"skins.timeless"