| /* |
| * 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.development; |
| |
| import android.content.Context; |
| |
| import androidx.annotation.VisibleForTesting; |
| import androidx.preference.PreferenceScreen; |
| |
| import com.android.settings.core.PreferenceControllerMixin; |
| import com.android.settingslib.core.lifecycle.Lifecycle; |
| import com.android.settingslib.core.lifecycle.LifecycleObserver; |
| import com.android.settingslib.core.lifecycle.events.OnPause; |
| import com.android.settingslib.core.lifecycle.events.OnResume; |
| import com.android.settingslib.development.DeveloperOptionsPreferenceController; |
| |
| public class PictureColorModePreferenceController extends DeveloperOptionsPreferenceController |
| implements LifecycleObserver, OnResume, OnPause, PreferenceControllerMixin { |
| |
| private static final String KEY_COLOR_MODE = "picture_color_mode"; |
| |
| private ColorModePreference mPreference; |
| |
| public PictureColorModePreferenceController(Context context, Lifecycle lifecycle) { |
| super(context); |
| |
| if (lifecycle != null) { |
| lifecycle.addObserver(this); |
| } |
| } |
| |
| @Override |
| public boolean isAvailable() { |
| return getColorModeDescriptionsSize() > 1 && !isWideColorGamut(); |
| } |
| |
| @Override |
| public String getPreferenceKey() { |
| return KEY_COLOR_MODE; |
| } |
| |
| @Override |
| public void displayPreference(PreferenceScreen screen) { |
| super.displayPreference(screen); |
| mPreference = screen.findPreference(getPreferenceKey()); |
| if (mPreference != null) { |
| mPreference.updateCurrentAndSupported(); |
| } |
| } |
| |
| @Override |
| public void onResume() { |
| if (mPreference == null) { |
| return; |
| } |
| mPreference.startListening(); |
| mPreference.updateCurrentAndSupported(); |
| } |
| |
| @Override |
| public void onPause() { |
| if (mPreference == null) { |
| return; |
| } |
| mPreference.stopListening(); |
| } |
| |
| @VisibleForTesting |
| boolean isWideColorGamut() { |
| return mContext.getResources().getConfiguration().isScreenWideColorGamut(); |
| } |
| |
| @VisibleForTesting |
| int getColorModeDescriptionsSize() { |
| return ColorModePreference.getColorModeDescriptions(mContext).size(); |
| } |
| } |