QOL: Move source code under the src directory. (#1318)

src/providers/protocol-handler.ts

@@ -0,0 +1,45 @@
+import path from 'node:path';
+
+import { app, BrowserWindow } from 'electron';
+
+import getSongControls from './song-controls';
+
+export const APP_PROTOCOL = 'youtubemusic';
+
+let protocolHandler: ((cmd: string) => void) | undefined;
+
+export function setupProtocolHandler(win: BrowserWindow) {
+  if (process.defaultApp && process.argv.length >= 2) {
+    app.setAsDefaultProtocolClient(
+      APP_PROTOCOL,
+      process.execPath,
+      [path.resolve(process.argv[1])],
+    );
+  } else {
+    app.setAsDefaultProtocolClient(APP_PROTOCOL);
+  }
+
+  const songControls = getSongControls(win);
+
+  protocolHandler = ((cmd: keyof typeof songControls) => {
+    if (Object.keys(songControls).includes(cmd)) {
+      songControls[cmd]();
+    }
+  }) as (cmd: string) => void;
+}
+
+export function handleProtocol(cmd: string) {
+  protocolHandler?.(cmd);
+}
+
+export function changeProtocolHandler(f: (cmd: string) => void) {
+  protocolHandler = f;
+}
+
+export default {
+  APP_PROTOCOL,
+  setupProtocolHandler,
+  handleProtocol,
+  changeProtocolHandler,
+};
+