Create placeholder touchpad settings API (0d12bf70) · Commits · e / os / android_frameworks_base

core/java/android/hardware/input/InputManager.java

+211 −0

Original line number	Diff line number	Diff line
		@@ -2043,6 +2043,217 @@ public final class InputManager {
		Settings.Global.STYLUS_EVER_USED, stylusEverUsed ? 1 : 0);
		}

		/**
		* Whether there is a gesture-compatible touchpad connected to the device.
		* @hide
		*/
		public boolean areTouchpadGesturesAvailable(@NonNull Context context) {
		// TODO: implement the right logic
		return true;
		}

		/**
		* Gets the touchpad pointer speed.
		*
		* The returned value only applies to gesture-compatible touchpads.
		*
		* @param context The application context.
		* @return The pointer speed as a value between {@link #MIN_POINTER_SPEED} and
		* {@link #MAX_POINTER_SPEED}, or the default value {@link #DEFAULT_POINTER_SPEED}.
		*
		* @hide
		*/
		public int getTouchpadPointerSpeed(@NonNull Context context) {
		int speed = DEFAULT_POINTER_SPEED;
		// TODO: obtain the actual speed from the settings
		return speed;
		}

		/**
		* Sets the touchpad pointer speed, and saves it in the settings.
		*
		* The new speed will only apply to gesture-compatible touchpads.
		*
		* @param context The application context.
		* @param speed The pointer speed as a value between {@link #MIN_POINTER_SPEED} and
		* {@link #MAX_POINTER_SPEED}, or the default value {@link #DEFAULT_POINTER_SPEED}.
		*
		* @hide
		*/
		public void setTouchpadPointerSpeed(@NonNull Context context, int speed) {
		if (speed < MIN_POINTER_SPEED \|\| speed > MAX_POINTER_SPEED) {
		throw new IllegalArgumentException("speed out of range");
		}

		// TODO: set the right setting
		}

		/**
		* Changes the touchpad pointer speed temporarily, but does not save the setting.
		*
		* The new speed will only apply to gesture-compatible touchpads.
		* Requires {@link android.Manifest.permission.SET_POINTER_SPEED}.
		*
		* @param speed The pointer speed as a value between {@link #MIN_POINTER_SPEED} and
		* {@link #MAX_POINTER_SPEED}, or the default value {@link #DEFAULT_POINTER_SPEED}.
		*
		* @hide
		*/
		public void tryTouchpadPointerSpeed(int speed) {
		if (speed < MIN_POINTER_SPEED \|\| speed > MAX_POINTER_SPEED) {
		throw new IllegalArgumentException("speed out of range");
		}

		// TODO: set the touchpad pointer speed on the gesture library
		}

		/**
		* Returns true if the touchpad should use pointer acceleration.
		*
		* The returned value only applies to gesture-compatible touchpads.
		*
		* @param context The application context.
		* @return Whether the touchpad should use pointer acceleration.
		*
		* @hide
		*/
		public boolean useTouchpadPointerAcceleration(@NonNull Context context) {
		// TODO: obtain the actual behavior from the settings
		return true;
		}

		/**
		* Sets the pointer acceleration behavior for the touchpad.
		*
		* The new behavior is only applied to gesture-compatible touchpads.
		*
		* @param context The application context.
		* @param enabled Will enable pointer acceleration if true, disable it if false
		*
		* @hide
		*/
		public void setTouchpadPointerAcceleration(@NonNull Context context, boolean enabled) {
		// TODO: set the right setting
		}

		/**
		* Returns true if moving two fingers upwards on the touchpad should
		* scroll down, which is known as natural scrolling.
		*
		* The returned value only applies to gesture-compatible touchpads.
		*
		* @param context The application context.
		* @return Whether the touchpad should use natural scrolling.
		*
		* @hide
		*/
		public boolean useTouchpadNaturalScrolling(@NonNull Context context) {
		// TODO: obtain the actual behavior from the settings
		return true;
		}

		/**
		* Sets the natural scroll behavior for the touchpad.
		*
		* If natural scrolling is enabled, moving two fingers upwards on the
		* touchpad will scroll down.
		*
		* @param context The application context.
		* @param enabled Will enable natural scroll if true, disable it if false
		*
		* @hide
		*/
		public void setTouchpadNaturalScrolling(@NonNull Context context, boolean enabled) {
		// TODO: set the right setting
		}

		/**
		* Returns true if the touchpad should use tap to click.
		*
		* The returned value only applies to gesture-compatible touchpads.
		*
		* @param context The application context.
		* @return Whether the touchpad should use tap to click.
		*
		* @hide
		*/
		public boolean useTouchpadTapToClick(@NonNull Context context) {
		// TODO: obtain the actual behavior from the settings
		return true;
		}

		/**
		* Sets the tap to click behavior for the touchpad.
		*
		* The new behavior is only applied to gesture-compatible touchpads.
		*
		* @param context The application context.
		* @param enabled Will enable tap to click if true, disable it if false
		*
		* @hide
		*/
		public void setTouchpadTapToClick(@NonNull Context context, boolean enabled) {
		// TODO: set the right setting
		}

		/**
		* Returns true if the touchpad should use tap dragging.
		*
		* The returned value only applies to gesture-compatible touchpads.
		*
		* @param context The application context.
		* @return Whether the touchpad should use tap dragging.
		*
		* @hide
		*/
		public boolean useTouchpadTapDragging(@NonNull Context context) {
		// TODO: obtain the actual behavior from the settings
		return true;
		}

		/**
		* Sets the tap dragging behavior for the touchpad.
		*
		* The new behavior is only applied to gesture-compatible touchpads.
		*
		* @param context The application context.
		* @param enabled Will enable tap dragging if true, disable it if false
		*
		* @hide
		*/
		public void setTouchpadTapDragging(@NonNull Context context, boolean enabled) {
		// TODO: set the right setting
		}

		/**
		* Returns true if the touchpad should use the right click zone.
		*
		* The returned value only applies to gesture-compatible touchpads.
		*
		* @param context The application context.
		* @return Whether the touchpad should use the right click zone.
		*
		* @hide
		*/
		public boolean useTouchpadRightClickZone(@NonNull Context context) {
		// TODO: obtain the actual behavior from the settings
		return true;
		}

		/**
		* Sets the right click zone behavior for the touchpad.
		*
		* The new behavior is only applied to gesture-compatible touchpads.
		*
		* @param context The application context.
		* @param enabled Will enable the right click zone if true, disable it if false
		*
		* @hide
		*/
		public void setTouchpadRightClickZone(@NonNull Context context, boolean enabled) {
		// TODO: set the right setting
		}

		/**
		* A callback used to be notified about battery state changes for an input device. The
		* {@link #onBatteryStateChanged(int, long, BatteryState)} method will be called once after the