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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;
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.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
import static com.android.quickstep.TouchInteractionService.TOUCH_INTERACTION_LOG;
import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
import android.graphics.PointF;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.ViewConfiguration;
import com.android.launcher3.BaseDraggingActivity;
import com.android.launcher3.views.BaseDragLayer;
import com.android.quickstep.util.CachedEventDispatcher;
import com.android.systemui.shared.system.ActivityManagerWrapper;
/**
* Input consumer for handling touch on the recents/Launcher activity.
*/
public class OverviewInputConsumer<T extends BaseDraggingActivity>
implements InputConsumer {
private final CachedEventDispatcher mCachedEventDispatcher = new CachedEventDispatcher();
private final T mActivity;
private final BaseDragLayer mTarget;
private final int[] mLocationOnScreen = new int[2];
private final PointF mDownPos = new PointF();
private final int mTouchSlop;
private final boolean mStartingInActivityBounds;
private boolean mTrackingStarted = false;
private boolean mInvalidated = false;
OverviewInputConsumer(T activity, boolean startingInActivityBounds) {
mActivity = activity;
mTarget = activity.getDragLayer();
mTouchSlop = ViewConfiguration.get(mActivity).getScaledTouchSlop();
mStartingInActivityBounds = startingInActivityBounds;
}
@Override
public int getType() {
return TYPE_OVERVIEW;
}
@Override
public void onMotionEvent(MotionEvent ev) {
if (mInvalidated) {
return;
}
mCachedEventDispatcher.dispatchEvent(ev);
int action = ev.getActionMasked();
if (action == ACTION_DOWN) {
if (mStartingInActivityBounds) {
startTouchTracking(ev, false /* updateLocationOffset */,
false /* closeActiveWindows */);
return;
}
mTrackingStarted = false;
mDownPos.set(ev.getX(), ev.getY());
} else if (!mTrackingStarted) {
switch (action) {
case ACTION_CANCEL:
case ACTION_UP:
startTouchTracking(ev, true /* updateLocationOffset */,
false /* closeActiveWindows */);
break;
case ACTION_MOVE: {
float displacement = mActivity.getDeviceProfile().isLandscape ?
ev.getX() - mDownPos.x : ev.getY() - mDownPos.y;
if (Math.abs(displacement) >= mTouchSlop) {
// Start tracking only when mTouchSlop is crossed.
startTouchTracking(ev, true /* updateLocationOffset */,
true /* closeActiveWindows */);
}
}
}
}
if (action == ACTION_UP || action == ACTION_CANCEL) {
mInvalidated = true;
// Set an empty consumer to that all the cached events are cleared
if (!mCachedEventDispatcher.hasConsumer()) {
mCachedEventDispatcher.setConsumer(motionEvent -> { });
}
}
}
@Override
public void onKeyEvent(KeyEvent ev) {
if (ENABLE_QUICKSTEP_LIVE_TILE.get()) {
mActivity.dispatchKeyEvent(ev);
}
}
private void startTouchTracking(MotionEvent ev, boolean updateLocationOffset,
boolean closeActiveWindows) {
if (updateLocationOffset) {
mTarget.getLocationOnScreen(mLocationOnScreen);
}
if (closeActiveWindows) {
OverviewCallbacks.get(mActivity).closeAllWindows();
ActivityManagerWrapper.getInstance()
.closeSystemWindows(CLOSE_SYSTEM_WINDOWS_REASON_RECENTS);
TOUCH_INTERACTION_LOG.addLog("startQuickstep");
}
mTrackingStarted = true;
mCachedEventDispatcher.setConsumer(this::sendEvent);
}
private void sendEvent(MotionEvent ev) {
if (mInvalidated || !mTarget.verifyTouchDispatch(this, ev)) {
mInvalidated = true;
return;
}
int flags = ev.getEdgeFlags();
ev.setEdgeFlags(flags | TouchInteractionService.EDGE_NAV_BAR);
ev.offsetLocation(-mLocationOnScreen[0], -mLocationOnScreen[1]);
if (ev.getAction() == ACTION_DOWN) {
mTarget.onInterceptTouchEvent(ev);
}
mTarget.onTouchEvent(ev);
ev.offsetLocation(mLocationOnScreen[0], mLocationOnScreen[1]);
ev.setEdgeFlags(flags);
}
public static InputConsumer newInstance(ActivityControlHelper activityHelper,
boolean startingInActivityBounds) {
BaseDraggingActivity activity = activityHelper.getCreatedActivity();
if (activity == null) {
return InputConsumer.NO_OP;
}
return new OverviewInputConsumer(activity, startingInActivityBounds);
}
}
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