Fix setting wallpaper for dark style on Gnome (sindresorhus#96)

Co-authored-by: Sindre Sorhus <[email protected]>

Author: 2 people

source/linux/background-managers/gnome.js

@@ -1,22 +1,36 @@
 'use strict';
-const {commandExists, execFile} = require('../util.js');
+const {commandExists, execFile, hasLine} = require('../util.js');
 
 exports.isAvailable = () => commandExists('gsettings');
 
+async function isDarkStyle() {
+	const {stdout} = await execFile('gsettings', [
+		'get',
+		'org.gnome.desktop.interface',
+		'color-scheme',
+	]);
+
+	return Boolean(hasLine(stdout, '\'prefer-dark\''));
+}
+
 exports.set = async imagePath => {
+	const keyForStyle = (await isDarkStyle()) ? 'picture-uri-dark' : 'picture-uri';
+
 	await execFile('gsettings', [
 		'set',
 		'org.gnome.desktop.background',
-		'picture-uri',
+		keyForStyle,
 		`file://${imagePath}`
 	]);
 };
 
 exports.get = async () => {
+	const keyForStyle = (await isDarkStyle()) ? 'picture-uri-dark' : 'picture-uri';
+
 	const {stdout} = await execFile('gsettings', [
 		'get',
 		'org.gnome.desktop.background',
-		'picture-uri'
+		keyForStyle
 	]);
 
 	return stdout.trim().slice(8, -1);

source/linux/background-managers/swww.js

@@ -13,7 +13,7 @@ async function initialize() {
 
 		throw new Error(`Failed to set image for swww: ${error.stderr}`);
 	}
-};
+}
 
 exports.get = async () => {
 	await initialize();