| /* |
| * Copyright (C) 2018 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.launcher3.uioverrides; |
| |
| import static android.app.WallpaperManager.FLAG_SYSTEM; |
| |
| import android.content.Context; |
| import android.graphics.Color; |
| import android.util.Pair; |
| |
| import com.android.launcher3.uioverrides.dynamicui.ColorExtractionAlgorithm; |
| import com.android.launcher3.uioverrides.dynamicui.WallpaperColorsCompat; |
| import com.android.launcher3.uioverrides.dynamicui.WallpaperManagerCompat; |
| import com.android.launcher3.util.MainThreadInitializedObject; |
| |
| import java.util.ArrayList; |
| |
| public class WallpaperColorInfo implements WallpaperManagerCompat.OnColorsChangedListenerCompat { |
| |
| private static final int MAIN_COLOR_LIGHT = 0xffdadce0; |
| private static final int MAIN_COLOR_DARK = 0xff202124; |
| private static final int MAIN_COLOR_REGULAR = 0xff000000; |
| |
| private static final int FALLBACK_COLOR = Color.WHITE; |
| |
| public static final MainThreadInitializedObject<WallpaperColorInfo> INSTANCE = |
| new MainThreadInitializedObject<>(WallpaperColorInfo::new); |
| |
| private final ArrayList<OnChangeListener> mListeners = new ArrayList<>(); |
| private final WallpaperManagerCompat mWallpaperManager; |
| private final ColorExtractionAlgorithm mExtractionType; |
| private int mMainColor; |
| private int mSecondaryColor; |
| private boolean mIsDark; |
| private boolean mSupportsDarkText; |
| |
| private OnChangeListener[] mTempListeners; |
| |
| private WallpaperColorInfo(Context context) { |
| mWallpaperManager = WallpaperManagerCompat.getInstance(context); |
| mWallpaperManager.addOnColorsChangedListener(this); |
| mExtractionType = new ColorExtractionAlgorithm(); |
| update(mWallpaperManager.getWallpaperColors(FLAG_SYSTEM)); |
| } |
| |
| public int getMainColor() { |
| return mMainColor; |
| } |
| |
| public int getSecondaryColor() { |
| return mSecondaryColor; |
| } |
| |
| public boolean isDark() { |
| return mIsDark; |
| } |
| |
| public boolean supportsDarkText() { |
| return mSupportsDarkText; |
| } |
| |
| public boolean isMainColorDark() { |
| return mMainColor == MAIN_COLOR_DARK; |
| } |
| |
| @Override |
| public void onColorsChanged(WallpaperColorsCompat colors, int which) { |
| if ((which & FLAG_SYSTEM) != 0) { |
| update(colors); |
| notifyChange(); |
| } |
| } |
| |
| private void update(WallpaperColorsCompat wallpaperColors) { |
| Pair<Integer, Integer> colors = mExtractionType.extractInto(wallpaperColors); |
| if (colors != null) { |
| mMainColor = colors.first; |
| mSecondaryColor = colors.second; |
| } else { |
| mMainColor = FALLBACK_COLOR; |
| mSecondaryColor = FALLBACK_COLOR; |
| } |
| mSupportsDarkText = wallpaperColors != null |
| ? (wallpaperColors.getColorHints() |
| & WallpaperColorsCompat.HINT_SUPPORTS_DARK_TEXT) > 0 : false; |
| mIsDark = wallpaperColors != null |
| ? (wallpaperColors.getColorHints() |
| & WallpaperColorsCompat.HINT_SUPPORTS_DARK_THEME) > 0 : false; |
| } |
| |
| public void addOnChangeListener(OnChangeListener listener) { |
| mListeners.add(listener); |
| } |
| |
| public void removeOnChangeListener(OnChangeListener listener) { |
| mListeners.remove(listener); |
| } |
| |
| private void notifyChange() { |
| OnChangeListener[] copy = |
| mTempListeners != null && mTempListeners.length == mListeners.size() ? |
| mTempListeners : new OnChangeListener[mListeners.size()]; |
| |
| // Create a new array to avoid concurrent modification when the activity destroys itself. |
| mTempListeners = mListeners.toArray(copy); |
| for (OnChangeListener listener : mTempListeners) { |
| listener.onExtractedColorsChanged(this); |
| } |
| } |
| |
| public interface OnChangeListener { |
| void onExtractedColorsChanged(WallpaperColorInfo wallpaperColorInfo); |
| } |
| } |