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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.hardware.input;
import android.annotation.NonNull;
import android.hardware.display.DisplayViewport;
import android.os.IBinder;
import android.view.InputEvent;
import java.util.List;
/**
* Input manager local system service interface.
*
* @hide Only for use within the system server.
*/
public abstract class InputManagerInternal {
/**
* Inject an input event.
*
* @param event The InputEvent to inject
* @param mode Synchronous or asynchronous mode
* @return True if injection has succeeded
*/
public abstract boolean injectInputEvent(InputEvent event, int mode);
/**
* Called by the display manager to set information about the displays as needed
* by the input system. The input system must copy this information to retain it.
*/
public abstract void setDisplayViewports(List<DisplayViewport> viewports);
/**
* Called by the power manager to tell the input manager whether it should start
* watching for wake events.
*/
public abstract void setInteractive(boolean interactive);
/**
* Toggles Caps Lock state for input device with specific id.
*
* @param deviceId The id of input device.
*/
public abstract void toggleCapsLock(int deviceId);
/**
* Set whether the input stack should deliver pulse gesture events when the device is asleep.
*/
public abstract void setPulseGestureEnabled(boolean enabled);
/**
* Atomically transfers touch focus from one window to another as identified by
* their input channels. It is possible for multiple windows to have
* touch focus if they support split touch dispatch
* {@link android.view.WindowManager.LayoutParams#FLAG_SPLIT_TOUCH} but this
* method only transfers touch focus of the specified window without affecting
* other windows that may also have touch focus at the same time.
*
* @param fromChannelToken The channel token of a window that currently has touch focus.
* @param toChannelToken The channel token of the window that should receive touch focus in
* place of the first.
* @return {@code true} if the transfer was successful. {@code false} if the window with the
* specified channel did not actually have touch focus at the time of the request.
*/
public abstract boolean transferTouchFocus(@NonNull IBinder fromChannelToken,
@NonNull IBinder toChannelToken);
/** Registers the {@link LidSwitchCallback} to begin receiving notifications. */
public abstract void registerLidSwitchCallback(@NonNull LidSwitchCallback callbacks);
/**
* Unregisters a {@link LidSwitchCallback callback} previously registered with
* {@link #registerLidSwitchCallback(LidSwitchCallback)}.
*/
public abstract void unregisterLidSwitchCallback(@NonNull LidSwitchCallback callbacks);
/** Callback interface for notifications relating to the lid switch. */
public interface LidSwitchCallback {
/**
* This callback is invoked when the lid switch changes state. Will be triggered once on
* registration of the callback with a {@code whenNanos} of 0 and then on every subsequent
* change in lid switch state.
*
* @param whenNanos the time when the change occurred
* @param lidOpen true if the lid is open
*/
void notifyLidSwitchChanged(long whenNanos, boolean lidOpen);
}
}
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