Prefer custom theme over theming app

Signed-off-by: Julius Härtl <jus@bitgrid.net>

3 files changed, 67 insertions, 28 deletions

diff --git a/apps/theming/appinfo/app.php b/apps/theming/appinfo/app.php
index 152504c4179..941df6f73df 100644
--- a/apps/theming/appinfo/app.php
+++ b/apps/theming/appinfo/app.php
@@ -23,33 +23,39 @@
  *
  */
 
-$linkToCSS = \OC::$server->getURLGenerator()->linkToRoute(
-	'theming.Theming.getStylesheet',
-	[
-		'v' => \OC::$server->getConfig()->getAppValue('theming', 'cachebuster', '0'),
-	]
-);
-\OCP\Util::addHeader(
-	'link',
-	[
-		'rel' => 'stylesheet',
-		'href' => $linkToCSS,
-	]
-);
+$app = new \OCP\AppFramework\App('theming');
+/** @var \OCA\Theming\Util $util */
+$util = $app->getContainer()->query(\OCA\Theming\Util::class);
+if(!$util->isAlreadyThemed()) {
 
-$linkToJs = \OC::$server->getURLGenerator()->linkToRoute(
-	'theming.Theming.getJavascript',
-	[
-		'v' => \OC::$server->getConfig()->getAppValue('theming', 'cachebuster', '0'),
-	]
-);
-\OCP\Util::addHeader(
-	'script',
-	[
-		'src' => $linkToJs,
-		'nonce' => \OC::$server->getContentSecurityPolicyNonceManager()->getNonce()
-	], ''
-);
+	$app->getContainer()->registerCapability(\OCA\Theming\Capabilities::class);
 
-$app = new \OCP\AppFramework\App('theming');
-$app->getContainer()->registerCapability(\OCA\Theming\Capabilities::class);
+	$linkToCSS = \OC::$server->getURLGenerator()->linkToRoute(
+		'theming.Theming.getStylesheet',
+		[
+			'v' => \OC::$server->getConfig()->getAppValue('theming', 'cachebuster', '0'),
+		]
+	);
+	\OCP\Util::addHeader(
+		'link',
+		[
+			'rel' => 'stylesheet',
+			'href' => $linkToCSS,
+		]
+	);
+
+	$linkToJs = \OC::$server->getURLGenerator()->linkToRoute(
+		'theming.Theming.getJavascript',
+		[
+			'v' => \OC::$server->getConfig()->getAppValue('theming', 'cachebuster', '0'),
+		]
+	);
+	\OCP\Util::addHeader(
+		'script',
+		[
+			'src' => $linkToJs,
+			'nonce' => \OC::$server->getContentSecurityPolicyNonceManager()->getNonce()
+		], ''
+	);
+
+}
\ No newline at end of file
diff --git a/apps/theming/lib/Util.php b/apps/theming/lib/Util.php
index 286756a4849..1df16ea4976 100644
--- a/apps/theming/lib/Util.php
+++ b/apps/theming/lib/Util.php
@@ -199,4 +199,17 @@ class Util {
 		return $svg;
 	}
 
+	/**
+	 * Check if a custom theme is set in the server configuration
+	 * 
+	 * @return bool
+	 */
+	public function isAlreadyThemed() {
+		$theme = $this->config->getSystemValue('theme', '');
+		if ($theme !== '') {
+			return true;
+		}
+		return false;
+	}
+
 }
diff --git a/apps/theming/tests/UtilTest.php b/apps/theming/tests/UtilTest.php
index de6690ffe0d..d81c253f98a 100644
--- a/apps/theming/tests/UtilTest.php
+++ b/apps/theming/tests/UtilTest.php
@@ -180,4 +180,24 @@ class UtilTest extends TestCase {
 		$this->assertEquals($expected, $result);
 	}
 
+	public function testIsAlreadyThemedFalse() {
+		$theme = $this->config->getSystemValue('theme', '');
+		$this->config->expects($this->once())
+			->method('getSystemValue')
+			->with('theme', '')
+			->willReturn('');
+		$actual = $this->util->isAlreadyThemed();
+		$this->assertFalse($actual);
+	}
+
+	public function testIsAlreadyThemedTrue() {
+		$theme = $this->config->getSystemValue('theme', '');
+		$this->config->expects($this->once())
+			->method('getSystemValue')
+			->with('theme', '')
+			->willReturn('example');
+		$actual = $this->util->isAlreadyThemed();
+		$this->assertTrue($actual);
+	}
+
 }