content: /*
   * Copyright (C) 2019 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.states;
  
  import android.os.Handler;
  import android.os.Looper;
  
  import com.android.launcher3.Launcher;
  import com.android.launcher3.userevent.nano.LauncherLogProto;
  import com.android.quickstep.views.RecentsView;
  import com.android.quickstep.views.TaskView;
  
  /**
   * State to indicate we are about to launch a recent task. Note that this state is only used when
   * quick switching from launcher; quick switching from an app uses WindowTransformSwipeHelper.
   * @see com.android.quickstep.WindowTransformSwipeHandler.GestureEndTarget#NEW_TASK
   */
  public class QuickSwitchState extends BackgroundAppState {
  
      private static final String TAG = "QuickSwitchState";
  
      public QuickSwitchState(int id) {
          super(id, LauncherLogProto.ContainerType.APP);
      }
  
      @Override
      public ScaleAndTranslation getWorkspaceScaleAndTranslation(Launcher launcher) {
          float shiftRange = launcher.getAllAppsController().getShiftRange();
          float shiftProgress = getVerticalProgress(launcher) - NORMAL.getVerticalProgress(launcher);
          float translationY = shiftProgress * shiftRange;
          return new ScaleAndTranslation(1, 0, translationY);
      }
  
      @Override
      public int getVisibleElements(Launcher launcher) {
          return NONE;
      }
  
      @Override
      public void onStateTransitionEnd(Launcher launcher) {
          TaskView tasktolaunch = launcher.<RecentsView>getOverviewPanel().getTaskViewAt(0);
          if (tasktolaunch != null) {
              tasktolaunch.launchTask(false, success -> {
                  if (!success) {
                      launcher.getStateManager().goToState(OVERVIEW);
                      tasktolaunch.notifyTaskLaunchFailed(TAG);
                  } else {
                      launcher.getStateManager().moveToRestState();
                  }
              }, new Handler(Looper.getMainLooper()));
          } else {
              launcher.getStateManager().goToState(NORMAL);
          }
      }
  }
  