blob: ab2652ab5eaa6f027cf2c582d105c4e187066831 [file] [log] [blame]
/**
* 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.touch;
import static com.android.launcher3.LauncherState.ALL_APPS;
import static com.android.launcher3.LauncherState.NORMAL;
import android.view.MotionEvent;
import com.android.launcher3.AbstractFloatingView;
import com.android.launcher3.Launcher;
import com.android.launcher3.LauncherState;
/**
* TouchController to switch between NORMAL and ALL_APPS state.
*/
public class AllAppsSwipeController extends AbstractStateChangeTouchController {
public AllAppsSwipeController(Launcher l) {
super(l, SingleAxisSwipeDetector.VERTICAL);
}
@Override
protected boolean canInterceptTouch(MotionEvent ev) {
if (mCurrentAnimation != null) {
// If we are already animating from a previous state, we can intercept.
return true;
}
if (AbstractFloatingView.getTopOpenView(mLauncher) != null) {
return false;
}
if (!mLauncher.isInState(NORMAL) && !mLauncher.isInState(ALL_APPS)) {
// Don't listen for the swipe gesture if we are already in some other state.
return false;
}
if (mLauncher.isInState(ALL_APPS) && !mLauncher.getAppsView().shouldContainerScroll(ev)) {
return false;
}
return true;
}
@Override
protected LauncherState getTargetState(LauncherState fromState, boolean isDragTowardPositive) {
if (fromState == NORMAL && isDragTowardPositive) {
return ALL_APPS;
} else if (fromState == ALL_APPS && !isDragTowardPositive) {
return NORMAL;
}
return fromState;
}
@Override
protected float initCurrentAnimation() {
float range = getShiftRange();
long maxAccuracy = (long) (2 * range);
mCurrentAnimation = mLauncher.getStateManager()
.createAnimationToNewWorkspace(mToState, maxAccuracy);
float startVerticalShift = mFromState.getVerticalProgress(mLauncher) * range;
float endVerticalShift = mToState.getVerticalProgress(mLauncher) * range;
float totalShift = endVerticalShift - startVerticalShift;
return 1 / totalShift;
}
}