Controller: subtitle line actions, Button Style, keyboard-only mode pause, Alt+C fixes (#316)

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Claude <noreply@anthropic.com>

src/core/services/ipc.test.ts

@@ -76,6 +76,10 @@ function createControllerConfigFixture() {
       holdSecondarySub: { kind: 'none' as const },
       previousEntry: { kind: 'none' as const },
       nextEntry: { kind: 'none' as const },
+      previousSubtitle: { kind: 'none' as const },
+      nextSubtitle: { kind: 'none' as const },
+      replaySubtitle: { kind: 'none' as const },
+      playNextSubtitle: { kind: 'none' as const },
       leftStickHorizontal: {
         kind: 'axis' as const,
         axisIndex: 0,
@@ -140,6 +144,8 @@ function createRegisterIpcDeps(overrides: Partial<IpcServiceDeps> = {}): IpcServ
     getOverlayNotificationPosition: () => 'top-right',
     getControllerConfig: () => createControllerConfigFixture(),
     saveControllerConfig: async () => {},
+    reportActiveController: () => {},
+    getActiveControllerId: () => null,
     getSecondarySubMode: () => 'hover',
     getCurrentSecondarySub: () => '',
     focusMainWindow: () => {},
@@ -226,6 +232,31 @@ test('registerIpcHandlers maps setIgnoreMouseEvents to overlay interaction activ
   assert.deepEqual(calls, ['overlay-interaction:false', 'overlay-interaction:true']);
 });
 
+test('registerIpcHandlers stores the controller the overlay reports for Alt+C to ask', async () => {
+  const { registrar, handlers } = createFakeIpcRegistrar();
+  let active: string | null = null;
+
+  registerIpcHandlers(
+    createRegisterIpcDeps({
+      reportActiveController: (gamepadId) => {
+        active = gamepadId;
+      },
+      getActiveControllerId: () => active,
+    }),
+    registrar,
+  );
+
+  const report = handlers.on.get(IPC_CHANNELS.command.reportActiveController);
+  report?.({}, 'pad-1');
+  report?.({}, 42);
+  assert.equal(
+    await handlers.handle.get(IPC_CHANNELS.request.getActiveControllerId)?.({}),
+    'pad-1',
+  );
+  report?.({}, null);
+  assert.equal(await handlers.handle.get(IPC_CHANNELS.request.getActiveControllerId)?.({}), null);
+});
+
 test('registerIpcHandlers runs AniList update after manual mark watched succeeds', async () => {
   const { registrar, handlers } = createFakeIpcRegistrar();
   const calls: string[] = [];
@@ -328,6 +359,8 @@ test('registerIpcHandlers rejects malformed runtime-option payloads', async () =
       getOverlayNotificationPosition: () => 'top-right',
       getControllerConfig: () => createControllerConfigFixture(),
       saveControllerConfig: () => {},
+      reportActiveController: () => {},
+      getActiveControllerId: () => null,
       getSecondarySubMode: () => 'hover',
       getCurrentSecondarySub: () => '',
       focusMainWindow: () => {},
@@ -609,6 +642,8 @@ test('registerIpcHandlers ignores malformed fire-and-forget payloads', () => {
       getOverlayNotificationPosition: () => 'top-right',
       getControllerConfig: () => createControllerConfigFixture(),
       saveControllerConfig: () => {},
+      reportActiveController: () => {},
+      getActiveControllerId: () => null,
       getSecondarySubMode: () => 'hover',
       getCurrentSecondarySub: () => '',
       focusMainWindow: () => {},