/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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package com.android.systemui.colorextraction;
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import android.app.WallpaperColors;
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import android.app.WallpaperManager;
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import android.content.Context;
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import android.graphics.Color;
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import android.os.UserHandle;
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import com.android.internal.annotations.VisibleForTesting;
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import com.android.internal.colorextraction.ColorExtractor;
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import com.android.internal.colorextraction.types.ExtractionType;
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import com.android.internal.colorextraction.types.Tonal;
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import com.android.keyguard.KeyguardUpdateMonitor;
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import com.android.systemui.Dumpable;
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import com.android.systemui.statusbar.policy.ConfigurationController;
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import java.io.FileDescriptor;
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import java.io.PrintWriter;
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import java.util.Arrays;
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import javax.inject.Inject;
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import javax.inject.Singleton;
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/**
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* ColorExtractor aware of wallpaper visibility
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*/
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@Singleton
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public class SysuiColorExtractor extends ColorExtractor implements Dumpable,
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ConfigurationController.ConfigurationListener {
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private static final String TAG = "SysuiColorExtractor";
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private final Tonal mTonal;
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private boolean mHasMediaArtwork;
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private final GradientColors mNeutralColorsLock;
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private final GradientColors mBackdropColors;
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@Inject
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public SysuiColorExtractor(Context context, ConfigurationController configurationController) {
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this(context, new Tonal(context), configurationController,
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context.getSystemService(WallpaperManager.class), false /* immediately */);
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}
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@VisibleForTesting
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public SysuiColorExtractor(Context context, ExtractionType type,
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ConfigurationController configurationController,
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WallpaperManager wallpaperManager, boolean immediately) {
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super(context, type, immediately, wallpaperManager);
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mTonal = type instanceof Tonal ? (Tonal) type : new Tonal(context);
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mNeutralColorsLock = new GradientColors();
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configurationController.addCallback(this);
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mBackdropColors = new GradientColors();
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mBackdropColors.setMainColor(Color.BLACK);
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if (wallpaperManager != null) {
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// Listen to all users instead of only the current one.
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wallpaperManager.removeOnColorsChangedListener(this);
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wallpaperManager.addOnColorsChangedListener(this, null /* handler */,
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UserHandle.USER_ALL);
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}
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}
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@Override
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protected void extractWallpaperColors() {
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super.extractWallpaperColors();
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// mTonal is final but this method will be invoked by the base class during its ctor.
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if (mTonal == null) {
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return;
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}
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mTonal.applyFallback(mLockColors == null ? mSystemColors : mLockColors, mNeutralColorsLock);
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}
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@Override
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public void onColorsChanged(WallpaperColors colors, int which, int userId) {
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if (userId != KeyguardUpdateMonitor.getCurrentUser()) {
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// Colors do not belong to current user, ignoring.
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return;
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}
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if ((which & WallpaperManager.FLAG_LOCK) != 0) {
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mTonal.applyFallback(colors, mNeutralColorsLock);
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}
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super.onColorsChanged(colors, which);
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}
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@Override
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public void onUiModeChanged() {
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extractWallpaperColors();
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triggerColorsChanged(WallpaperManager.FLAG_SYSTEM | WallpaperManager.FLAG_LOCK);
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}
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@Override
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public GradientColors getColors(int which, int type) {
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if (mHasMediaArtwork && (which & WallpaperManager.FLAG_LOCK) != 0) {
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return mBackdropColors;
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}
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return super.getColors(which, type);
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}
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/**
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* Colors that should be using for scrims.
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*
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* They will be:
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* - A light gray if the wallpaper is light
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* - A dark gray if the wallpaper is very dark or we're in night mode.
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* - Black otherwise
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*/
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public GradientColors getNeutralColors() {
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return mHasMediaArtwork ? mBackdropColors : mNeutralColorsLock;
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}
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public void setHasMediaArtwork(boolean hasBackdrop) {
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if (mHasMediaArtwork != hasBackdrop) {
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mHasMediaArtwork = hasBackdrop;
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triggerColorsChanged(WallpaperManager.FLAG_LOCK);
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}
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}
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@Override
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public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
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pw.println("SysuiColorExtractor:");
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pw.println(" Current wallpaper colors:");
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pw.println(" system: " + mSystemColors);
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pw.println(" lock: " + mLockColors);
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GradientColors[] system = mGradientColors.get(WallpaperManager.FLAG_SYSTEM);
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GradientColors[] lock = mGradientColors.get(WallpaperManager.FLAG_LOCK);
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pw.println(" Gradients:");
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pw.println(" system: " + Arrays.toString(system));
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pw.println(" lock: " + Arrays.toString(lock));
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pw.println(" Neutral colors: " + mNeutralColorsLock);
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pw.println(" Has media backdrop: " + mHasMediaArtwork);
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}
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}
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