| /* |
| * 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.os.Handler; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.util.Log; |
| import android.view.Display; |
| import android.view.IWallpaperVisibilityListener; |
| import android.view.IWindowManager; |
| import android.view.WindowManagerGlobal; |
| |
| 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 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 { |
| private static final String TAG = "SysuiColorExtractor"; |
| private final Tonal mTonal; |
| private boolean mWallpaperVisible; |
| private boolean mHasBackdrop; |
| // Colors to return when the wallpaper isn't visible |
| private final GradientColors mWpHiddenColors; |
| |
| @Inject |
| public SysuiColorExtractor(Context context) { |
| this(context, new Tonal(context), true); |
| } |
| |
| @VisibleForTesting |
| public SysuiColorExtractor(Context context, ExtractionType type, boolean registerVisibility) { |
| super(context, type); |
| mTonal = type instanceof Tonal ? (Tonal) type : new Tonal(context); |
| mWpHiddenColors = new GradientColors(); |
| |
| WallpaperColors systemColors = getWallpaperColors(WallpaperManager.FLAG_SYSTEM); |
| updateDefaultGradients(systemColors); |
| |
| if (registerVisibility) { |
| try { |
| IWindowManager windowManagerService = WindowManagerGlobal.getWindowManagerService(); |
| Handler handler = Handler.getMain(); |
| boolean visible = windowManagerService.registerWallpaperVisibilityListener( |
| new IWallpaperVisibilityListener.Stub() { |
| @Override |
| public void onWallpaperVisibilityChanged(boolean newVisibility, |
| int displayId) throws RemoteException { |
| handler.post(() -> setWallpaperVisible(newVisibility)); |
| } |
| }, Display.DEFAULT_DISPLAY); |
| setWallpaperVisible(visible); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Can't listen to wallpaper visibility changes", e); |
| } |
| } |
| |
| WallpaperManager wallpaperManager = context.getSystemService(WallpaperManager.class); |
| if (wallpaperManager != null) { |
| // Listen to all users instead of only the current one. |
| wallpaperManager.removeOnColorsChangedListener(this); |
| wallpaperManager.addOnColorsChangedListener(this, null /* handler */, |
| UserHandle.USER_ALL); |
| } |
| } |
| |
| private void updateDefaultGradients(WallpaperColors colors) { |
| mTonal.applyFallback(colors, mWpHiddenColors); |
| } |
| |
| @Override |
| public void onColorsChanged(WallpaperColors colors, int which, int userId) { |
| if (userId != KeyguardUpdateMonitor.getCurrentUser()) { |
| // Colors do not belong to current user, ignoring. |
| return; |
| } |
| |
| super.onColorsChanged(colors, which); |
| |
| if ((which & WallpaperManager.FLAG_SYSTEM) != 0) { |
| updateDefaultGradients(colors); |
| } |
| } |
| |
| @VisibleForTesting |
| GradientColors getFallbackColors() { |
| return mWpHiddenColors; |
| } |
| |
| /** |
| * Get TYPE_NORMAL colors when wallpaper is visible, or fallback otherwise. |
| * |
| * @param which FLAG_LOCK or FLAG_SYSTEM |
| * @return colors |
| */ |
| @Override |
| public GradientColors getColors(int which) { |
| return getColors(which, TYPE_DARK); |
| } |
| |
| /** |
| * Wallpaper colors when the wallpaper is visible, fallback otherwise. |
| * |
| * @param which FLAG_LOCK or FLAG_SYSTEM |
| * @param type TYPE_NORMAL, TYPE_DARK or TYPE_EXTRA_DARK |
| * @return colors |
| */ |
| @Override |
| public GradientColors getColors(int which, int type) { |
| return getColors(which, type, false /* ignoreVisibility */); |
| } |
| |
| /** |
| * Get TYPE_NORMAL colors, possibly ignoring wallpaper visibility. |
| * |
| * @param which FLAG_LOCK or FLAG_SYSTEM |
| * @param ignoreWallpaperVisibility whether you want fallback colors or not if the wallpaper |
| * isn't visible |
| * @return |
| */ |
| public GradientColors getColors(int which, boolean ignoreWallpaperVisibility) { |
| return getColors(which, TYPE_NORMAL, ignoreWallpaperVisibility); |
| } |
| |
| /** |
| * |
| * @param which FLAG_LOCK or FLAG_SYSTEM |
| * @param type TYPE_NORMAL, TYPE_DARK or TYPE_EXTRA_DARK |
| * @param ignoreWallpaperVisibility true if true wallpaper colors should be returning |
| * if it's visible or not |
| * @return colors |
| */ |
| public GradientColors getColors(int which, int type, boolean ignoreWallpaperVisibility) { |
| // mWallpaperVisible only handles the "system wallpaper" and will be always set to false |
| // if we have different lock and system wallpapers. |
| if (which == WallpaperManager.FLAG_SYSTEM) { |
| if (mWallpaperVisible || ignoreWallpaperVisibility) { |
| return super.getColors(which, type); |
| } else { |
| return mWpHiddenColors; |
| } |
| } else { |
| if (mHasBackdrop) { |
| return mWpHiddenColors; |
| } else { |
| return super.getColors(which, type); |
| } |
| } |
| } |
| |
| @VisibleForTesting |
| void setWallpaperVisible(boolean visible) { |
| if (mWallpaperVisible != visible) { |
| mWallpaperVisible = visible; |
| triggerColorsChanged(WallpaperManager.FLAG_SYSTEM); |
| } |
| } |
| |
| public void setHasBackdrop(boolean hasBackdrop) { |
| if (mHasBackdrop != hasBackdrop) { |
| mHasBackdrop = 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(" Default scrim: " + mWpHiddenColors); |
| |
| } |
| } |