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/*
* Copyright (C) 2020 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.window;
import android.annotation.NonNull;
import android.annotation.RequiresPermission;
import android.annotation.TestApi;
import android.os.RemoteException;
import android.view.SurfaceControl;
/**
* Interface for WindowManager to delegate control of display areas.
* @hide
*/
@TestApi
public class DisplayAreaOrganizer extends WindowOrganizer {
/**
* The value in display area indicating that no value has been set.
*/
public static final int FEATURE_UNDEFINED = -1;
/**
* The Root display area on a display
*/
public static final int FEATURE_SYSTEM_FIRST = 0;
/**
* The Root display area on a display
*/
public static final int FEATURE_ROOT = FEATURE_SYSTEM_FIRST;
/**
* Display area hosting the default task container.
*/
public static final int FEATURE_DEFAULT_TASK_CONTAINER = FEATURE_SYSTEM_FIRST + 1;
/**
* Display area hosting non-activity window tokens.
*/
public static final int FEATURE_WINDOW_TOKENS = FEATURE_SYSTEM_FIRST + 2;
/**
* Display area for one handed feature
*/
public static final int FEATURE_ONE_HANDED = FEATURE_SYSTEM_FIRST + 3;
/**
* Display area that can be magnified in
* {@link Settings.Secure.ACCESSIBILITY_MAGNIFICATION_MODE_WINDOW}. It contains all windows
* below {@link WindowManager.LayoutParams#TYPE_ACCESSIBILITY_MAGNIFICATION_OVERLAY}.
*/
public static final int FEATURE_WINDOWED_MAGNIFICATION = FEATURE_SYSTEM_FIRST + 4;
/**
* Display area that can be magnified in
* {@link Settings.Secure.ACCESSIBILITY_MAGNIFICATION_MODE_FULLSCREEN}. This is different from
* {@link #FEATURE_WINDOWED_MAGNIFICATION} that the whole display will be magnified.
* @hide
*/
public static final int FEATURE_FULLSCREEN_MAGNIFICATION = FEATURE_SYSTEM_FIRST + 5;
/**
* The last boundary of display area for system features
*/
public static final int FEATURE_SYSTEM_LAST = 10_000;
/**
* Vendor specific display area definition can start with this value.
*/
public static final int FEATURE_VENDOR_FIRST = FEATURE_SYSTEM_LAST + 1;
@RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS)
public void registerOrganizer(int displayAreaFeature) {
try {
getController().registerOrganizer(mInterface, displayAreaFeature);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
/**
* @hide
*/
@RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS)
public void unregisterOrganizer() {
try {
getController().unregisterOrganizer(mInterface);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
public void onDisplayAreaAppeared(@NonNull DisplayAreaInfo displayAreaInfo,
@NonNull SurfaceControl leash) {}
public void onDisplayAreaVanished(@NonNull DisplayAreaInfo displayAreaInfo) {}
/**
* @hide
*/
public void onDisplayAreaInfoChanged(@NonNull DisplayAreaInfo displayAreaInfo) {}
private final IDisplayAreaOrganizer mInterface = new IDisplayAreaOrganizer.Stub() {
@Override
public void onDisplayAreaAppeared(@NonNull DisplayAreaInfo displayAreaInfo,
@NonNull SurfaceControl leash) {
DisplayAreaOrganizer.this.onDisplayAreaAppeared(displayAreaInfo, leash);
}
@Override
public void onDisplayAreaVanished(@NonNull DisplayAreaInfo displayAreaInfo) {
DisplayAreaOrganizer.this.onDisplayAreaVanished(displayAreaInfo);
}
@Override
public void onDisplayAreaInfoChanged(@NonNull DisplayAreaInfo displayAreaInfo) {
DisplayAreaOrganizer.this.onDisplayAreaInfoChanged(displayAreaInfo);
}
};
private IDisplayAreaOrganizerController getController() {
try {
return getWindowOrganizerController().getDisplayAreaOrganizerController();
} catch (RemoteException e) {
return null;
}
}
}
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