content: /*
   * 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.views;
  
  import android.content.Context;
  import android.content.ContextWrapper;
  import android.view.ContextThemeWrapper;
  import android.view.View.AccessibilityDelegate;
  
  import com.android.launcher3.DeviceProfile;
  import com.android.launcher3.ItemInfo;
  import com.android.launcher3.graphics.RotationMode;
  import com.android.launcher3.dot.DotInfo;
  
  /**
   * An interface to be used along with a context for various activities in Launcher. This allows a
   * generic class to depend on Context subclass instead of an Activity.
   */
  public interface ActivityContext {
  
      default boolean finishAutoCancelActionMode() {
          return false;
      }
  
      default DotInfo getDotInfoForItem(ItemInfo info) {
          return null;
      }
  
      /**
       * For items with tree hierarchy, notifies the activity to invalidate the parent when a root
       * is invalidated
       * @param info info associated with a root node.
       */
      default void invalidateParent(ItemInfo info) { }
  
      default AccessibilityDelegate getAccessibilityDelegate() {
          return null;
      }
  
      /**
       * The root view to support drag-and-drop and popup support.
       */
      BaseDragLayer getDragLayer();
  
      DeviceProfile getDeviceProfile();
  
      /**
       * Device profile to be used by UI elements which are shown directly on top of the wallpaper
       * and whose presentation is tied to the wallpaper (and physical device) and not the activity
       * configuration.
       */
      default DeviceProfile getWallpaperDeviceProfile() {
          return getDeviceProfile();
      }
  
      default RotationMode getRotationMode() {
          return RotationMode.NORMAL;
      }
  
      static ActivityContext lookupContext(Context context) {
          if (context instanceof ActivityContext) {
              return (ActivityContext) context;
          } else if (context instanceof ContextThemeWrapper) {
              return lookupContext(((ContextWrapper) context).getBaseContext());
          } else {
              throw new IllegalArgumentException("Cannot find ActivityContext in parent tree");
          }
      }
  }
  