Flag guard keyboard backlight controller (a0572e78) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/input/InputManagerService.java

+20 −3

Original line number	Diff line number	Diff line
		@@ -70,6 +70,7 @@ import android.os.RemoteCallbackList;
		import android.os.RemoteException;
		import android.os.ResultReceiver;
		import android.os.ShellCallback;
		import android.os.SystemProperties;
		import android.os.UserHandle;
		import android.os.VibrationEffect;
		import android.os.vibrator.StepSegment;
		@@ -158,6 +159,11 @@ public class InputManagerService extends IInputManager.Stub
		private static final AdditionalDisplayInputProperties
		DEFAULT_ADDITIONAL_DISPLAY_INPUT_PROPERTIES = new AdditionalDisplayInputProperties();

		// To disable Keyboard backlight control via Framework, run:
		// 'adb shell setprop persist.input.keyboard_backlight_control.enabled false' (requires restart)
		private static final boolean KEYBOARD_BACKLIGHT_CONTROL_ENABLED = SystemProperties.getBoolean(
		"persist.input.keyboard.backlight_control.enabled", true);

		private final NativeInputManagerService mNative;

		private final Context mContext;
		@@ -305,7 +311,7 @@ public class InputManagerService extends IInputManager.Stub
		private final BatteryController mBatteryController;

		// Manages Keyboard backlight
		private final KeyboardBacklightController mKeyboardBacklightController;
		private final KeyboardBacklightControllerInterface mKeyboardBacklightController;

		// Manages Keyboard modifier keys remapping
		private final KeyRemapper mKeyRemapper;
		@@ -422,8 +428,10 @@ public class InputManagerService extends IInputManager.Stub
		mKeyboardLayoutManager = new KeyboardLayoutManager(mContext, mNative, mDataStore,
		injector.getLooper());
		mBatteryController = new BatteryController(mContext, mNative, injector.getLooper());
		mKeyboardBacklightController = new KeyboardBacklightController(mContext, mNative,
		mDataStore, injector.getLooper());
		mKeyboardBacklightController =
		KEYBOARD_BACKLIGHT_CONTROL_ENABLED ? new KeyboardBacklightController(mContext,
		mNative, mDataStore, injector.getLooper())
		: new KeyboardBacklightControllerInterface() {};
		mKeyRemapper = new KeyRemapper(mContext, mNative, mDataStore, injector.getLooper());

		mUseDevInputEventForAudioJack =
		@@ -3478,4 +3486,13 @@ public class InputManagerService extends IInputManager.Stub
		applyAdditionalDisplayInputPropertiesLocked(properties);
		}
		}

		interface KeyboardBacklightControllerInterface {
		default void incrementKeyboardBacklight(int deviceId) {}
		default void decrementKeyboardBacklight(int deviceId) {}
		default void registerKeyboardBacklightListener(IKeyboardBacklightListener l, int pid) {}
		default void unregisterKeyboardBacklightListener(IKeyboardBacklightListener l, int pid) {}
		default void systemRunning() {}
		default void dump(PrintWriter pw) {}
		}
		}

services/core/java/com/android/server/input/KeyboardBacklightController.java

+10 −3

Original line number	Diff line number	Diff line
		@@ -47,7 +47,8 @@ import java.util.TreeSet;
		* A thread-safe component of {@link InputManagerService} responsible for managing the keyboard
		* backlight for supported keyboards.
		*/
		final class KeyboardBacklightController implements InputManager.InputDeviceListener {
		final class KeyboardBacklightController implements
		InputManagerService.KeyboardBacklightControllerInterface, InputManager.InputDeviceListener {

		private static final String TAG = "KbdBacklightController";

		@@ -96,7 +97,8 @@ final class KeyboardBacklightController implements InputManager.InputDeviceListe
		mHandler = new Handler(looper, this::handleMessage);
		}

		void systemRunning() {
		@Override
		public void systemRunning() {
		InputManager inputManager = Objects.requireNonNull(
		mContext.getSystemService(InputManager.class));
		inputManager.registerInputDeviceListener(this, mHandler);
		@@ -106,11 +108,13 @@ final class KeyboardBacklightController implements InputManager.InputDeviceListe
		}
		}

		@Override
		public void incrementKeyboardBacklight(int deviceId) {
		Message msg = Message.obtain(mHandler, MSG_INCREMENT_KEYBOARD_BACKLIGHT, deviceId);
		mHandler.sendMessage(msg);
		}

		@Override
		public void decrementKeyboardBacklight(int deviceId) {
		Message msg = Message.obtain(mHandler, MSG_DECREMENT_KEYBOARD_BACKLIGHT, deviceId);
		mHandler.sendMessage(msg);
		@@ -232,6 +236,7 @@ final class KeyboardBacklightController implements InputManager.InputDeviceListe

		/** Register the keyboard backlight listener for a process. */
		@BinderThread
		@Override
		public void registerKeyboardBacklightListener(IKeyboardBacklightListener listener,
		int pid) {
		synchronized (mKeyboardBacklightListenerRecords) {
		@@ -252,6 +257,7 @@ final class KeyboardBacklightController implements InputManager.InputDeviceListe

		/** Unregister the keyboard backlight listener for a process. */
		@BinderThread
		@Override
		public void unregisterKeyboardBacklightListener(IKeyboardBacklightListener listener,
		int pid) {
		synchronized (mKeyboardBacklightListenerRecords) {
		@@ -286,7 +292,8 @@ final class KeyboardBacklightController implements InputManager.InputDeviceListe
		}
		}

		void dump(PrintWriter pw) {
		@Override
		public void dump(PrintWriter pw) {
		IndentingPrintWriter ipw = new IndentingPrintWriter(pw);
		ipw.println(TAG + ": " + mKeyboardBacklights.size() + " keyboard backlights");
		ipw.increaseIndent();