1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.quickstep.fallback; 17 18 import android.graphics.PointF; 19 import android.view.MotionEvent; 20 21 import androidx.annotation.Nullable; 22 23 import com.android.launcher3.Utilities; 24 import com.android.launcher3.util.DisplayController; 25 import com.android.launcher3.util.NavigationMode; 26 import com.android.launcher3.util.TouchController; 27 import com.android.quickstep.util.NavBarPosition; 28 import com.android.quickstep.util.TriggerSwipeUpTouchTracker; 29 import com.android.quickstep.views.RecentsViewContainer; 30 31 /** 32 * In 0-button mode, intercepts swipe up from the nav bar on FallbackRecentsView to go home. 33 */ 34 public class FallbackNavBarTouchController implements TouchController, 35 TriggerSwipeUpTouchTracker.OnSwipeUpListener { 36 37 private final RecentsViewContainer mContainer; 38 @Nullable 39 private final TriggerSwipeUpTouchTracker mTriggerSwipeUpTracker; 40 FallbackNavBarTouchController(RecentsViewContainer container)41 public FallbackNavBarTouchController(RecentsViewContainer container) { 42 mContainer = container; 43 NavigationMode sysUINavigationMode = 44 DisplayController.getNavigationMode(mContainer.asContext()); 45 if (sysUINavigationMode == NavigationMode.NO_BUTTON) { 46 NavBarPosition navBarPosition = new NavBarPosition(sysUINavigationMode, 47 DisplayController.INSTANCE.get(mContainer.asContext()).getInfo()); 48 mTriggerSwipeUpTracker = new TriggerSwipeUpTouchTracker(mContainer.asContext(), 49 true /* disableHorizontalSwipe */, navBarPosition, this); 50 } else { 51 mTriggerSwipeUpTracker = null; 52 } 53 } 54 55 @Override onControllerInterceptTouchEvent(MotionEvent ev)56 public boolean onControllerInterceptTouchEvent(MotionEvent ev) { 57 boolean cameFromNavBar = (ev.getEdgeFlags() & Utilities.EDGE_NAV_BAR) != 0; 58 if (cameFromNavBar && mTriggerSwipeUpTracker != null) { 59 if (ev.getAction() == MotionEvent.ACTION_DOWN) { 60 mTriggerSwipeUpTracker.init(); 61 } 62 onControllerTouchEvent(ev); 63 return mTriggerSwipeUpTracker.interceptedTouch(); 64 } 65 return false; 66 } 67 68 @Override onControllerTouchEvent(MotionEvent ev)69 public boolean onControllerTouchEvent(MotionEvent ev) { 70 if (mTriggerSwipeUpTracker != null) { 71 mTriggerSwipeUpTracker.onMotionEvent(ev); 72 return true; 73 } 74 return false; 75 } 76 77 @Override onSwipeUp(boolean wasFling, PointF finalVelocity)78 public void onSwipeUp(boolean wasFling, PointF finalVelocity) { 79 mContainer.<FallbackRecentsView>getOverviewPanel().startHome(); 80 } 81 } 82