content: /*
   * 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.launcher3.uioverrides.dynamicui;
  
  import android.annotation.TargetApi;
  import android.app.WallpaperColors;
  import android.app.WallpaperManager;
  import android.app.WallpaperManager.OnColorsChangedListener;
  import android.content.Context;
  import android.graphics.Color;
  import android.util.Log;
  
  import java.lang.reflect.Method;
  
  import androidx.annotation.Nullable;
  
  @TargetApi(27)
  public class WallpaperManagerCompatVOMR1 extends WallpaperManagerCompat {
  
      private static final String TAG = "WMCompatVOMR1";
  
      private final WallpaperManager mWm;
      private Method mWCColorHintsMethod;
  
      WallpaperManagerCompatVOMR1(Context context) throws Throwable {
          mWm = context.getSystemService(WallpaperManager.class);
          String className = WallpaperColors.class.getName();
          try {
              mWCColorHintsMethod = WallpaperColors.class.getDeclaredMethod("getColorHints");
          } catch (Exception exc) {
              Log.e(TAG, "getColorHints not available", exc);
          }
      }
  
      @Nullable
      @Override
      public WallpaperColorsCompat getWallpaperColors(int which) {
          return convertColorsObject(mWm.getWallpaperColors(which));
      }
  
      @Override
      public void addOnColorsChangedListener(final OnColorsChangedListenerCompat listener) {
          OnColorsChangedListener onChangeListener = new OnColorsChangedListener() {
              @Override
              public void onColorsChanged(WallpaperColors colors, int which) {
                  listener.onColorsChanged(convertColorsObject(colors), which);
              }
          };
          mWm.addOnColorsChangedListener(onChangeListener, null);
      }
  
      private WallpaperColorsCompat convertColorsObject(WallpaperColors colors) {
          if (colors == null) {
              return null;
          }
          Color primary = colors.getPrimaryColor();
          Color secondary = colors.getSecondaryColor();
          Color tertiary = colors.getTertiaryColor();
          int primaryVal = primary != null ? primary.toArgb() : 0;
          int secondaryVal = secondary != null ? secondary.toArgb() : 0;
          int tertiaryVal = tertiary != null ? tertiary.toArgb() : 0;
          int colorHints = 0;
          try {
              if (mWCColorHintsMethod != null) {
                  colorHints = (Integer) mWCColorHintsMethod.invoke(colors);
              }
          } catch (Exception exc) {
              Log.e(TAG, "error calling color hints", exc);
          }
          return new WallpaperColorsCompat(primaryVal, secondaryVal, tertiaryVal, colorHints);
      }
  }
  