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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.launcher3.uioverrides;
import static com.android.launcher3.LauncherState.NORMAL;
import static com.android.launcher3.LauncherState.OVERVIEW;
import static com.android.launcher3.LauncherStateManager.NON_ATOMIC_COMPONENT;
import android.animation.ValueAnimator;
import com.android.launcher3.Launcher;
import com.android.launcher3.anim.AnimatorSetBuilder;
import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
import com.android.quickstep.util.MotionPauseDetector;
import com.android.quickstep.views.RecentsView;
/**
* Touch controller which handles swipe and hold to go to Overview
*/
public class FlingAndHoldTouchController extends PortraitStatesTouchController {
private final MotionPauseDetector mMotionPauseDetector;
public FlingAndHoldTouchController(Launcher l) {
super(l, false /* allowDragToOverview */);
mMotionPauseDetector = new MotionPauseDetector(l);
}
@Override
public void onDragStart(boolean start) {
mMotionPauseDetector.clear();
super.onDragStart(start);
if (mStartState == NORMAL) {
mMotionPauseDetector.setOnMotionPauseListener(isPaused -> {
RecentsView recentsView = mLauncher.getOverviewPanel();
recentsView.setOverviewStateEnabled(isPaused);
maybeUpdateAtomicAnim(NORMAL, OVERVIEW, isPaused ? 1 : 0);
});
}
}
@Override
public boolean onDrag(float displacement) {
mMotionPauseDetector.addPosition(displacement);
return super.onDrag(displacement);
}
@Override
public void onDragEnd(float velocity, boolean fling) {
if (mMotionPauseDetector.isPaused() && mStartState == NORMAL) {
float range = getShiftRange();
long maxAccuracy = (long) (2 * range);
// Let the state manager know that the animation didn't go to the target state,
// but don't cancel ourselves (we already clean up when the animation completes).
Runnable onCancel = mCurrentAnimation.getOnCancelRunnable();
mCurrentAnimation.setOnCancelRunnable(null);
mCurrentAnimation.dispatchOnCancel();
mCurrentAnimation = mLauncher.getStateManager()
.createAnimationToNewWorkspace(OVERVIEW, new AnimatorSetBuilder(), maxAccuracy,
onCancel, NON_ATOMIC_COMPONENT);
final int logAction = fling ? Touch.FLING : Touch.SWIPE;
mCurrentAnimation.setEndAction(() -> onSwipeInteractionCompleted(OVERVIEW, logAction));
ValueAnimator anim = mCurrentAnimation.getAnimationPlayer();
maybeUpdateAtomicAnim(NORMAL, OVERVIEW, 1f);
mCurrentAnimation.dispatchOnStartWithVelocity(1, velocity);
// TODO: Find a better duration
anim.setDuration(100);
anim.start();
settleAtomicAnimation(1f, anim.getDuration());
} else {
super.onDragEnd(velocity, fling);
}
}
}
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