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/*
* 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.quickstep.util;
import static com.android.quickstep.TouchInteractionService.MAIN_THREAD_EXECUTOR;
import android.graphics.Rect;
import android.util.ArraySet;
import com.android.launcher3.Utilities;
import com.android.launcher3.util.Preconditions;
import com.android.quickstep.util.SwipeAnimationTargetSet.SwipeAnimationListener;
import com.android.systemui.shared.recents.model.ThumbnailData;
import com.android.systemui.shared.system.RecentsAnimationControllerCompat;
import com.android.systemui.shared.system.RecentsAnimationListener;
import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
import java.util.Set;
import java.util.function.Consumer;
import androidx.annotation.UiThread;
/**
* Wrapper around {@link RecentsAnimationListener} which delegates callbacks to multiple listeners
* on the main thread
*/
public class RecentsAnimationListenerSet implements RecentsAnimationListener {
// The actual app surface is replaced by a screenshot upon recents animation cancelation when
// the thumbnailData exists. Launcher takes the responsibility to clean up this screenshot
// after app transition is finished. This delay is introduced to cover the app transition
// period of time.
private final int TRANSITION_DELAY = 100;
private final Set<SwipeAnimationListener> mListeners = new ArraySet<>();
private final boolean mShouldMinimizeSplitScreen;
private final Consumer<SwipeAnimationTargetSet> mOnFinishListener;
private RecentsAnimationControllerCompat mController;
private boolean mCancelled;
public RecentsAnimationListenerSet(boolean shouldMinimizeSplitScreen,
Consumer<SwipeAnimationTargetSet> onFinishListener) {
mShouldMinimizeSplitScreen = shouldMinimizeSplitScreen;
mOnFinishListener = onFinishListener;
}
@UiThread
public void addListener(SwipeAnimationListener listener) {
Preconditions.assertUIThread();
mListeners.add(listener);
}
@UiThread
public void removeListener(SwipeAnimationListener listener) {
Preconditions.assertUIThread();
mListeners.remove(listener);
}
@Override
public final void onAnimationStart(RecentsAnimationControllerCompat controller,
RemoteAnimationTargetCompat[] targets, Rect homeContentInsets,
Rect minimizedHomeBounds) {
mController = controller;
SwipeAnimationTargetSet targetSet = new SwipeAnimationTargetSet(controller, targets,
homeContentInsets, minimizedHomeBounds, mShouldMinimizeSplitScreen,
mOnFinishListener);
if (mCancelled) {
targetSet.cancelAnimation();
} else {
Utilities.postAsyncCallback(MAIN_THREAD_EXECUTOR.getHandler(), () -> {
for (SwipeAnimationListener listener : getListeners()) {
listener.onRecentsAnimationStart(targetSet);
}
});
}
}
@Override
public final void onAnimationCanceled(ThumbnailData thumbnailData) {
Utilities.postAsyncCallback(MAIN_THREAD_EXECUTOR.getHandler(), () -> {
for (SwipeAnimationListener listener : getListeners()) {
listener.onRecentsAnimationCanceled();
}
});
// TODO: handle the transition better instead of simply using a transition delay.
if (thumbnailData != null) {
MAIN_THREAD_EXECUTOR.getHandler().postDelayed(() -> mController.cleanupScreenshot(),
TRANSITION_DELAY);
}
}
private SwipeAnimationListener[] getListeners() {
return mListeners.toArray(new SwipeAnimationListener[mListeners.size()]);
}
public void cancelListener() {
mCancelled = true;
onAnimationCanceled(null);
}
}
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