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/*
* Copyright (C) 2021 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.inputconsumers;
import static com.android.app.animation.Interpolators.scrollInterpolatorForVelocity;
import static com.android.launcher3.touch.BaseSwipeDetector.calculateDuration;
import static com.android.launcher3.touch.SingleAxisSwipeDetector.DIRECTION_POSITIVE;
import static com.android.launcher3.touch.SingleAxisSwipeDetector.VERTICAL;
import static com.android.quickstep.MultiStateCallback.DEBUG_STATES;
import static com.android.quickstep.OverviewComponentObserver.startHomeIntentSafely;
import static com.android.quickstep.util.ActiveGestureLog.INTENT_EXTRA_LOG_TRACE_ID;
import android.animation.ObjectAnimator;
import android.content.Context;
import android.content.Intent;
import android.graphics.Point;
import android.view.MotionEvent;
import com.android.launcher3.anim.AnimatedFloat;
import com.android.launcher3.anim.AnimatorListeners;
import com.android.launcher3.testing.TestLogging;
import com.android.launcher3.testing.shared.TestProtocol;
import com.android.launcher3.touch.SingleAxisSwipeDetector;
import com.android.launcher3.util.DisplayController;
import com.android.quickstep.GestureState;
import com.android.quickstep.InputConsumer;
import com.android.quickstep.MultiStateCallback;
import com.android.quickstep.RecentsAnimationCallbacks;
import com.android.quickstep.RecentsAnimationController;
import com.android.quickstep.RecentsAnimationTargets;
import com.android.quickstep.TaskAnimationManager;
import com.android.systemui.shared.recents.model.ThumbnailData;
import com.android.systemui.shared.system.InputMonitorCompat;
import java.util.HashMap;
/**
* Input consumer which delegates the swipe-progress handling
*/
public class ProgressDelegateInputConsumer implements InputConsumer,
RecentsAnimationCallbacks.RecentsAnimationListener,
SingleAxisSwipeDetector.Listener {
private static final String TAG = "ProgressDelegateInputConsumer";
private static final float SWIPE_DISTANCE_THRESHOLD = 0.2f;
private static final String[] STATE_NAMES = DEBUG_STATES ? new String[3] : null;
private static int getFlagForIndex(int index, String name) {
if (DEBUG_STATES) {
STATE_NAMES[index] = name;
}
return 1 << index;
}
private static final int STATE_TARGET_RECEIVED =
getFlagForIndex(0, "STATE_TARGET_RECEIVED");
private static final int STATE_HANDLER_INVALIDATED =
getFlagForIndex(1, "STATE_HANDLER_INVALIDATED");
private static final int STATE_FLING_FINISHED =
getFlagForIndex(2, "STATE_FLING_FINISHED");
private final Context mContext;
private final TaskAnimationManager mTaskAnimationManager;
private final GestureState mGestureState;
private final InputMonitorCompat mInputMonitorCompat;
private final MultiStateCallback mStateCallback;
private final Point mDisplaySize;
private final SingleAxisSwipeDetector mSwipeDetector;
private final AnimatedFloat mProgress;
private boolean mDragStarted = false;
private RecentsAnimationController mRecentsAnimationController;
private Boolean mFlingEndsOnHome;
public ProgressDelegateInputConsumer(Context context,
TaskAnimationManager taskAnimationManager, GestureState gestureState,
InputMonitorCompat inputMonitorCompat, AnimatedFloat progress) {
mContext = context;
mTaskAnimationManager = taskAnimationManager;
mGestureState = gestureState;
mInputMonitorCompat = inputMonitorCompat;
mProgress = progress;
// Do not use DeviceProfile as the user data might be locked
mDisplaySize = DisplayController.INSTANCE.get(context).getInfo().currentSize;
// Init states
mStateCallback = new MultiStateCallback(STATE_NAMES);
mStateCallback.runOnceAtState(STATE_TARGET_RECEIVED | STATE_HANDLER_INVALIDATED,
this::endRemoteAnimation);
mStateCallback.runOnceAtState(STATE_TARGET_RECEIVED | STATE_FLING_FINISHED,
this::onFlingFinished);
mSwipeDetector = new SingleAxisSwipeDetector(mContext, this, VERTICAL);
mSwipeDetector.setDetectableScrollConditions(DIRECTION_POSITIVE, false);
}
@Override
public int getType() {
return TYPE_PROGRESS_DELEGATE;
}
@Override
public void onMotionEvent(MotionEvent ev) {
if (mFlingEndsOnHome == null) {
mSwipeDetector.onTouchEvent(ev);
}
}
@Override
public void onDragStart(boolean start, float startDisplacement) {
mDragStarted = true;
TestLogging.recordEvent(TestProtocol.SEQUENCE_PILFER, "pilferPointers");
mInputMonitorCompat.pilferPointers();
Intent intent = mGestureState.getHomeIntent()
.putExtra(INTENT_EXTRA_LOG_TRACE_ID, mGestureState.getGestureId());
mTaskAnimationManager.startRecentsAnimation(mGestureState, intent, this);
}
@Override
public boolean onDrag(float displacement) {
if (mDisplaySize.y > 0) {
mProgress.updateValue(displacement / -mDisplaySize.y);
}
return true;
}
@Override
public void onDragEnd(float velocity) {
final boolean willExit;
if (mSwipeDetector.isFling(velocity)) {
willExit = velocity < 0;
} else {
willExit = mProgress.value > SWIPE_DISTANCE_THRESHOLD;
}
float endValue = willExit ? 1 : 0;
long duration = calculateDuration(velocity, endValue - mProgress.value);
mFlingEndsOnHome = willExit;
ObjectAnimator anim = mProgress.animateToValue(endValue);
anim.setDuration(duration).setInterpolator(scrollInterpolatorForVelocity(velocity));
anim.addListener(AnimatorListeners.forSuccessCallback(
() -> mStateCallback.setState(STATE_FLING_FINISHED)));
anim.start();
}
private void onFlingFinished() {
boolean endToRecents = mFlingEndsOnHome == null ? true : mFlingEndsOnHome;
if (mRecentsAnimationController != null) {
mRecentsAnimationController.finishController(endToRecents /* toRecents */,
null /* callback */, false /* sendUserLeaveHint */);
} else if (endToRecents) {
startHomeIntentSafely(mContext, null, TAG);
}
}
@Override
public void onRecentsAnimationStart(RecentsAnimationController controller,
RecentsAnimationTargets targets) {
mRecentsAnimationController = controller;
mStateCallback.setState(STATE_TARGET_RECEIVED);
}
@Override
public void onRecentsAnimationCanceled(HashMap<Integer, ThumbnailData> thumbnailDatas) {
mRecentsAnimationController = null;
}
private void endRemoteAnimation() {
onDragEnd(Float.MIN_VALUE);
}
@Override
public void onConsumerAboutToBeSwitched() {
mStateCallback.setState(STATE_HANDLER_INVALIDATED);
}
@Override
public boolean allowInterceptByParent() {
return !mDragStarted;
}
}
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