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;
  
  import android.annotation.TargetApi;
  import android.content.Context;
  import android.content.Intent;
  import android.os.Build;
  import android.os.Bundle;
  import android.os.CancellationSignal;
  import android.os.Handler;
  
  import com.android.launcher3.states.InternalStateHandler;
  import com.android.quickstep.ActivityControlHelper.ActivityInitListener;
  import com.android.quickstep.OverviewCallbacks;
  import com.android.quickstep.util.RemoteAnimationProvider;
  
  import java.util.function.BiPredicate;
  
  @TargetApi(Build.VERSION_CODES.P)
  public class LauncherInitListener extends InternalStateHandler implements ActivityInitListener {
  
      private final BiPredicate<Launcher, Boolean> mOnInitListener;
  
      private RemoteAnimationProvider mRemoteAnimationProvider;
  
      public LauncherInitListener(BiPredicate<Launcher, Boolean> onInitListener) {
          mOnInitListener = onInitListener;
      }
  
      @Override
      protected boolean init(Launcher launcher, boolean alreadyOnHome) {
          if (mRemoteAnimationProvider != null) {
              QuickstepAppTransitionManagerImpl appTransitionManager =
                      (QuickstepAppTransitionManagerImpl) launcher.getAppTransitionManager();
  
              // Set a one-time animation provider. After the first call, this will get cleared.
              // TODO: Probably also check the intended target id.
              CancellationSignal cancellationSignal = new CancellationSignal();
              appTransitionManager.setRemoteAnimationProvider((targets) -> {
  
                  // On the first call clear the reference.
                  cancellationSignal.cancel();
                  RemoteAnimationProvider provider = mRemoteAnimationProvider;
                  mRemoteAnimationProvider = null;
  
                  if (provider != null && launcher.getStateManager().getState().overviewUi) {
                      return provider.createWindowAnimation(targets);
                  }
                  return null;
              }, cancellationSignal);
          }
          OverviewCallbacks.get(launcher).onInitOverviewTransition();
          return mOnInitListener.test(launcher, alreadyOnHome);
      }
  
      @Override
      public void register() {
          initWhenReady();
      }
  
      @Override
      public void unregister() {
          mRemoteAnimationProvider = null;
          clearReference();
      }
  
      @Override
      public void registerAndStartActivity(Intent intent, RemoteAnimationProvider animProvider,
              Context context, Handler handler, long duration) {
          mRemoteAnimationProvider = animProvider;
  
          register();
  
          Bundle options = animProvider.toActivityOptions(handler, duration, context).toBundle();
          context.startActivity(addToIntent(new Intent((intent))), options);
      }
  }
  