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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.inputconsumers;
import static android.view.MotionEvent.ACTION_CANCEL;
import static android.view.MotionEvent.ACTION_DOWN;
import static android.view.MotionEvent.ACTION_MOVE;
import static android.view.MotionEvent.ACTION_UP;
import static com.android.launcher3.Utilities.squaredHypot;
import static com.android.quickstep.TouchInteractionService.TOUCH_INTERACTION_LOG;
import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
import android.content.Context;
import android.graphics.PointF;
import android.view.MotionEvent;
import android.view.VelocityTracker;
import android.view.ViewConfiguration;
import com.android.launcher3.BaseActivity;
import com.android.launcher3.BaseDraggingActivity;
import com.android.launcher3.Utilities;
import com.android.launcher3.logging.StatsLogUtils;
import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Direction;
import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
import com.android.quickstep.OverviewCallbacks;
import com.android.quickstep.util.NavBarPosition;
import com.android.systemui.shared.system.ActivityManagerWrapper;
import com.android.systemui.shared.system.InputMonitorCompat;
public class OverviewWithoutFocusInputConsumer implements InputConsumer {
private final InputMonitorCompat mInputMonitor;
private final boolean mDisableHorizontalSwipe;
private final PointF mDownPos = new PointF();
private final float mSquaredTouchSlop;
private final Context mContext;
private final NavBarPosition mNavBarPosition;
private boolean mInterceptedTouch;
private VelocityTracker mVelocityTracker;
public OverviewWithoutFocusInputConsumer(Context context, InputMonitorCompat inputMonitor,
boolean disableHorizontalSwipe) {
mInputMonitor = inputMonitor;
mDisableHorizontalSwipe = disableHorizontalSwipe;
mContext = context;
mSquaredTouchSlop = Utilities.squaredTouchSlop(context);
mNavBarPosition = new NavBarPosition(context);
mVelocityTracker = VelocityTracker.obtain();
}
@Override
public int getType() {
return TYPE_OVERVIEW_WITHOUT_FOCUS;
}
@Override
public boolean allowInterceptByParent() {
return !mInterceptedTouch;
}
private void endTouchTracking() {
if (mVelocityTracker != null) {
mVelocityTracker.recycle();
mVelocityTracker = null;
}
}
@Override
public void onMotionEvent(MotionEvent ev) {
if (mVelocityTracker == null) {
return;
}
mVelocityTracker.addMovement(ev);
switch (ev.getActionMasked()) {
case ACTION_DOWN: {
mDownPos.set(ev.getX(), ev.getY());
break;
}
case ACTION_MOVE: {
if (!mInterceptedTouch) {
float displacementX = ev.getX() - mDownPos.x;
float displacementY = ev.getY() - mDownPos.y;
if (squaredHypot(displacementX, displacementY) >= mSquaredTouchSlop) {
if (mDisableHorizontalSwipe
&& Math.abs(displacementX) > Math.abs(displacementY)) {
// Horizontal gesture is not allowed in this region
endTouchTracking();
break;
}
mInterceptedTouch = true;
if (mInputMonitor != null) {
mInputMonitor.pilferPointers();
}
}
}
break;
}
case ACTION_CANCEL:
endTouchTracking();
break;
case ACTION_UP: {
finishTouchTracking(ev);
endTouchTracking();
break;
}
}
}
private void finishTouchTracking(MotionEvent ev) {
mVelocityTracker.computeCurrentVelocity(100);
float velocityX = mVelocityTracker.getXVelocity();
float velocityY = mVelocityTracker.getYVelocity();
float velocity = mNavBarPosition.isRightEdge()
? -velocityX : (mNavBarPosition.isLeftEdge() ? velocityX : -velocityY);
final boolean triggerQuickstep;
int touch = Touch.FLING;
if (Math.abs(velocity) >= ViewConfiguration.get(mContext).getScaledMinimumFlingVelocity()) {
triggerQuickstep = velocity > 0;
} else {
float displacementX = mDisableHorizontalSwipe ? 0 : (ev.getX() - mDownPos.x);
float displacementY = ev.getY() - mDownPos.y;
triggerQuickstep = squaredHypot(displacementX, displacementY) >= mSquaredTouchSlop;
touch = Touch.SWIPE;
}
if (triggerQuickstep) {
OverviewCallbacks.get(mContext).closeAllWindows();
ActivityManagerWrapper.getInstance()
.closeSystemWindows(CLOSE_SYSTEM_WINDOWS_REASON_RECENTS);
TOUCH_INTERACTION_LOG.addLog("startQuickstep");
BaseActivity activity = BaseDraggingActivity.fromContext(mContext);
int pageIndex = -1; // This number doesn't reflect workspace page index.
// It only indicates that launcher client screen was shown.
int containerType = StatsLogUtils.getContainerTypeFromState(activity.getCurrentState());
activity.getUserEventDispatcher().logActionOnContainer(
touch, Direction.UP, containerType, pageIndex);
activity.getUserEventDispatcher().setPreviousHomeGesture(true);
} else {
// ignore
}
}
}
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