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/*
* Copyright (C) 2018 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.display;
import android.annotation.RequiresPermission;
import android.annotation.SystemService;
import android.content.Context;
import android.os.IBinder;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.ServiceManager.ServiceNotFoundException;
import com.android.internal.R;
/**
* Manages the display's color transforms and modes.
*
* @hide
*/
@SystemService(Context.COLOR_DISPLAY_SERVICE)
public final class ColorDisplayManager {
private final ColorDisplayManagerInternal mManager;
/**
* @hide
*/
public ColorDisplayManager() {
mManager = ColorDisplayManagerInternal.getInstance();
}
/**
* Returns whether the device has a wide color gamut display.
*
* @hide
*/
@RequiresPermission(android.Manifest.permission.CONTROL_DISPLAY_COLOR_TRANSFORMS)
public boolean isDeviceColorManaged() {
return mManager.isDeviceColorManaged();
}
/**
* Returns {@code true} if Night Display is supported by the device.
*/
public static boolean isNightDisplayAvailable(Context context) {
return context.getResources().getBoolean(R.bool.config_nightDisplayAvailable);
}
private static class ColorDisplayManagerInternal {
private static ColorDisplayManagerInternal sInstance;
private final IColorDisplayManager mCdm;
private ColorDisplayManagerInternal(IColorDisplayManager colorDisplayManager) {
mCdm = colorDisplayManager;
}
public static ColorDisplayManagerInternal getInstance() {
synchronized (ColorDisplayManagerInternal.class) {
if (sInstance == null) {
try {
IBinder b = ServiceManager.getServiceOrThrow(Context.COLOR_DISPLAY_SERVICE);
sInstance = new ColorDisplayManagerInternal(
IColorDisplayManager.Stub.asInterface(b));
} catch (ServiceNotFoundException e) {
throw new IllegalStateException(e);
}
}
return sInstance;
}
}
boolean isDeviceColorManaged() {
try {
return mCdm.isDeviceColorManaged();
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
}
}