content: /*
   * Copyright (C) 2016 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.graphics;
  
  import android.content.Context;
  import android.content.res.Resources;
  import android.graphics.Bitmap;
  import android.graphics.Canvas;
  import android.graphics.Color;
  import android.graphics.Path;
  import android.graphics.Rect;
  import android.graphics.drawable.BitmapDrawable;
  import android.graphics.drawable.Drawable;
  import android.os.Process;
  import android.os.UserHandle;
  import android.support.annotation.UiThread;
  import android.util.ArrayMap;
  import android.util.Log;
  import com.android.launcher3.FastBitmapDrawable;
  import com.android.launcher3.ItemInfo;
  import com.android.launcher3.R;
  import com.android.launcher3.Utilities;
  import com.android.launcher3.allapps.AllAppsBackgroundDrawable;
  
  /**
   * Factory for creating new drawables.
   */
  public class DrawableFactory {
  
      private static final String TAG = "DrawableFactory";
  
      private static DrawableFactory sInstance;
      private static final Object LOCK = new Object();
  
      private Path mPreloadProgressPath;
  
      public static DrawableFactory get(Context context) {
          synchronized (LOCK) {
              if (sInstance == null) {
                  sInstance = Utilities.getOverrideObject(DrawableFactory.class,
                          context.getApplicationContext(), R.string.drawable_factory_class);
              }
              return sInstance;
          }
      }
  
      protected final UserHandle mMyUser = Process.myUserHandle();
      protected final ArrayMap<UserHandle, Bitmap> mUserBadges = new ArrayMap<>();
  
      /**
       * Returns a FastBitmapDrawable with the icon.
       */
      public FastBitmapDrawable newIcon(Bitmap icon, ItemInfo info) {
          return new FastBitmapDrawable(icon);
      }
  
      /**
       * Returns a FastBitmapDrawable with the icon.
       */
      public PreloadIconDrawable newPendingIcon(Bitmap icon, Context context) {
          if (mPreloadProgressPath == null) {
              mPreloadProgressPath = getPreloadProgressPath(context);
          }
          return new PreloadIconDrawable(icon, mPreloadProgressPath, context);
      }
  
  
      protected Path getPreloadProgressPath(Context context) {
          if (Utilities.ATLEAST_OREO) {
              try {
                  // Try to load the path from Mask Icon
                  Drawable icon = context.getDrawable(R.drawable.adaptive_icon_drawable_wrapper);
                  icon.setBounds(0, 0,
                          PreloadIconDrawable.PATH_SIZE, PreloadIconDrawable.PATH_SIZE);
                  return (Path) icon.getClass().getMethod("getIconMask").invoke(icon);
              } catch (Exception e) {
                  Log.e(TAG, "Error loading mask icon", e);
              }
          }
  
          // Create a circle static from top center and going clockwise.
          Path p = new Path();
          p.moveTo(PreloadIconDrawable.PATH_SIZE / 2, 0);
          p.addArc(0, 0, PreloadIconDrawable.PATH_SIZE, PreloadIconDrawable.PATH_SIZE, -90, 360);
          return p;
      }
  
      public AllAppsBackgroundDrawable getAllAppsBackground(Context context) {
          return new AllAppsBackgroundDrawable(context);
      }
  
      /**
       * Returns a drawable that can be used as a badge for the user or null.
       */
      @UiThread
      public Drawable getBadgeForUser(UserHandle user, Context context) {
          if (mMyUser.equals(user)) {
              return null;
          }
  
          Bitmap badgeBitmap = getUserBadge(user, context);
          FastBitmapDrawable d = new FastBitmapDrawable(badgeBitmap);
          d.setFilterBitmap(true);
          d.setBounds(0, 0, badgeBitmap.getWidth(), badgeBitmap.getHeight());
          return d;
      }
  
      protected synchronized Bitmap getUserBadge(UserHandle user, Context context) {
          Bitmap badgeBitmap = mUserBadges.get(user);
          if (badgeBitmap != null) {
              return badgeBitmap;
          }
  
          final Resources res = context.getApplicationContext().getResources();
          int badgeSize = res.getDimensionPixelSize(R.dimen.profile_badge_size);
          badgeBitmap = Bitmap.createBitmap(badgeSize, badgeSize, Bitmap.Config.ARGB_8888);
  
          Drawable drawable = context.getPackageManager().getUserBadgedDrawableForDensity(
                  new BitmapDrawable(res, badgeBitmap), user, new Rect(0, 0, badgeSize, badgeSize),
                  0);
          if (drawable instanceof BitmapDrawable) {
              badgeBitmap = ((BitmapDrawable) drawable).getBitmap();
          } else {
              badgeBitmap.eraseColor(Color.TRANSPARENT);
              Canvas c = new Canvas(badgeBitmap);
              drawable.setBounds(0, 0, badgeSize, badgeSize);
              drawable.draw(c);
              c.setBitmap(null);
          }
  
          mUserBadges.put(user, badgeBitmap);
          return badgeBitmap;
      }
  }
  