| /* |
| * 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.systemui.colorextraction; |
| |
| import android.app.WallpaperColors; |
| import android.app.WallpaperManager; |
| import android.content.Context; |
| import android.graphics.Color; |
| import android.os.UserHandle; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.colorextraction.ColorExtractor; |
| import com.android.internal.colorextraction.types.ExtractionType; |
| import com.android.internal.colorextraction.types.Tonal; |
| import com.android.keyguard.KeyguardUpdateMonitor; |
| import com.android.systemui.Dumpable; |
| import com.android.systemui.statusbar.policy.ConfigurationController; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.util.Arrays; |
| |
| import javax.inject.Inject; |
| import javax.inject.Singleton; |
| |
| /** |
| * ColorExtractor aware of wallpaper visibility |
| */ |
| @Singleton |
| public class SysuiColorExtractor extends ColorExtractor implements Dumpable, |
| ConfigurationController.ConfigurationListener { |
| private static final String TAG = "SysuiColorExtractor"; |
| private final Tonal mTonal; |
| private boolean mHasMediaArtwork; |
| private final GradientColors mNeutralColorsLock; |
| private final GradientColors mBackdropColors; |
| |
| @Inject |
| public SysuiColorExtractor(Context context, ConfigurationController configurationController) { |
| this(context, new Tonal(context), configurationController, |
| context.getSystemService(WallpaperManager.class), false /* immediately */); |
| } |
| |
| @VisibleForTesting |
| public SysuiColorExtractor(Context context, ExtractionType type, |
| ConfigurationController configurationController, |
| WallpaperManager wallpaperManager, boolean immediately) { |
| super(context, type, immediately, wallpaperManager); |
| mTonal = type instanceof Tonal ? (Tonal) type : new Tonal(context); |
| mNeutralColorsLock = new GradientColors(); |
| configurationController.addCallback(this); |
| |
| mBackdropColors = new GradientColors(); |
| mBackdropColors.setMainColor(Color.BLACK); |
| |
| // Listen to all users instead of only the current one. |
| wallpaperManager.removeOnColorsChangedListener(this); |
| wallpaperManager.addOnColorsChangedListener(this, null /* handler */, |
| UserHandle.USER_ALL); |
| } |
| |
| @Override |
| protected void extractWallpaperColors() { |
| super.extractWallpaperColors(); |
| // mTonal is final but this method will be invoked by the base class during its ctor. |
| if (mTonal == null || mNeutralColorsLock == null) { |
| return; |
| } |
| mTonal.applyFallback(mLockColors == null ? mSystemColors : mLockColors, mNeutralColorsLock); |
| } |
| |
| @Override |
| public void onColorsChanged(WallpaperColors colors, int which, int userId) { |
| if (userId != KeyguardUpdateMonitor.getCurrentUser()) { |
| // Colors do not belong to current user, ignoring. |
| return; |
| } |
| if ((which & WallpaperManager.FLAG_LOCK) != 0) { |
| mTonal.applyFallback(colors, mNeutralColorsLock); |
| } |
| super.onColorsChanged(colors, which); |
| } |
| |
| @Override |
| public void onUiModeChanged() { |
| extractWallpaperColors(); |
| triggerColorsChanged(WallpaperManager.FLAG_SYSTEM | WallpaperManager.FLAG_LOCK); |
| } |
| |
| @Override |
| public GradientColors getColors(int which, int type) { |
| if (mHasMediaArtwork && (which & WallpaperManager.FLAG_LOCK) != 0) { |
| return mBackdropColors; |
| } |
| return super.getColors(which, type); |
| } |
| |
| /** |
| * Colors that should be using for scrims. |
| * |
| * They will be: |
| * - A light gray if the wallpaper is light |
| * - A dark gray if the wallpaper is very dark or we're in night mode. |
| * - Black otherwise |
| */ |
| public GradientColors getNeutralColors() { |
| return mHasMediaArtwork ? mBackdropColors : mNeutralColorsLock; |
| } |
| |
| public void setHasMediaArtwork(boolean hasBackdrop) { |
| if (mHasMediaArtwork != hasBackdrop) { |
| mHasMediaArtwork = hasBackdrop; |
| triggerColorsChanged(WallpaperManager.FLAG_LOCK); |
| } |
| } |
| |
| @Override |
| public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| pw.println("SysuiColorExtractor:"); |
| |
| pw.println(" Current wallpaper colors:"); |
| pw.println(" system: " + mSystemColors); |
| pw.println(" lock: " + mLockColors); |
| |
| GradientColors[] system = mGradientColors.get(WallpaperManager.FLAG_SYSTEM); |
| GradientColors[] lock = mGradientColors.get(WallpaperManager.FLAG_LOCK); |
| pw.println(" Gradients:"); |
| pw.println(" system: " + Arrays.toString(system)); |
| pw.println(" lock: " + Arrays.toString(lock)); |
| pw.println(" Neutral colors: " + mNeutralColorsLock); |
| pw.println(" Has media backdrop: " + mHasMediaArtwork); |
| |
| } |
| } |