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/*
* Copyright (C) 2017 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 com.android.settings.display;
import android.content.Context;
import android.os.IBinder;
import android.os.Parcel;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.util.Log;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.app.ColorDisplayController;
import com.android.settings.R;
import com.android.settings.core.BasePreferenceController;
public class ColorModePreferenceController extends BasePreferenceController {
private static final String TAG = "ColorModePreference";
private static final String KEY_COLOR_MODE = "color_mode";
private static final int SURFACE_FLINGER_TRANSACTION_QUERY_WIDE_COLOR = 1024;
private final ConfigurationWrapper mConfigWrapper;
private ColorDisplayController mColorDisplayController;
public ColorModePreferenceController(Context context) {
super(context, KEY_COLOR_MODE);
mConfigWrapper = new ConfigurationWrapper();
}
@Override
public int getAvailabilityStatus() {
return mConfigWrapper.isScreenWideColorGamut()
&& !getColorDisplayController().getAccessibilityTransformActivated() ?
AVAILABLE : DISABLED_FOR_USER;
}
@Override
public CharSequence getSummary() {
final int colorMode = getColorDisplayController().getColorMode();
if (colorMode == ColorDisplayController.COLOR_MODE_SATURATED) {
return mContext.getText(R.string.color_mode_option_saturated);
}
if (colorMode == ColorDisplayController.COLOR_MODE_BOOSTED) {
return mContext.getText(R.string.color_mode_option_boosted);
}
return mContext.getText(R.string.color_mode_option_natural);
}
@VisibleForTesting
ColorDisplayController getColorDisplayController() {
if (mColorDisplayController == null) {
mColorDisplayController = new ColorDisplayController(mContext);
}
return mColorDisplayController;
}
@VisibleForTesting
static class ConfigurationWrapper {
private final IBinder mSurfaceFlinger;
ConfigurationWrapper() {
mSurfaceFlinger = ServiceManager.getService("SurfaceFlinger");
}
boolean isScreenWideColorGamut() {
if (mSurfaceFlinger != null) {
final Parcel data = Parcel.obtain();
final Parcel reply = Parcel.obtain();
data.writeInterfaceToken("android.ui.ISurfaceComposer");
try {
mSurfaceFlinger.transact(SURFACE_FLINGER_TRANSACTION_QUERY_WIDE_COLOR,
data, reply, 0);
return reply.readBoolean();
} catch (RemoteException ex) {
Log.e(TAG, "Failed to query wide color support", ex);
} finally {
data.recycle();
reply.recycle();
}
}
return false;
}
}
}
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