1 /* <lambda>null2 * Copyright (C) 2024 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 17 package com.android.wm.shell.desktopmode 18 19 import android.animation.Animator 20 import android.animation.RectEvaluator 21 import android.animation.ValueAnimator 22 import android.graphics.Rect 23 import android.view.SurfaceControl 24 import androidx.core.animation.addListener 25 import com.android.internal.jank.Cuj 26 import com.android.internal.jank.InteractionJankMonitor 27 import com.android.wm.shell.windowdecor.OnTaskRepositionAnimationListener 28 import java.util.function.Supplier 29 30 /** Animates the task surface moving from its current drag position to its pre-drag position. */ 31 class ReturnToDragStartAnimator( 32 private val transactionSupplier: Supplier<SurfaceControl.Transaction>, 33 private val interactionJankMonitor: InteractionJankMonitor, 34 ) { 35 private var boundsAnimator: Animator? = null 36 private lateinit var taskRepositionAnimationListener: OnTaskRepositionAnimationListener 37 38 constructor( 39 interactionJankMonitor: InteractionJankMonitor 40 ) : this(Supplier { SurfaceControl.Transaction() }, interactionJankMonitor) 41 42 /** Sets a listener for the start and end of the reposition animation. */ 43 fun setTaskRepositionAnimationListener(listener: OnTaskRepositionAnimationListener) { 44 taskRepositionAnimationListener = listener 45 } 46 47 /** Builds new animator and starts animation of task leash reposition. */ 48 fun start( 49 taskId: Int, 50 taskSurface: SurfaceControl, 51 startBounds: Rect, 52 endBounds: Rect, 53 doOnEnd: (() -> Unit)? = null, 54 ) { 55 val tx = transactionSupplier.get() 56 57 boundsAnimator?.cancel() 58 boundsAnimator = 59 ValueAnimator.ofObject(RectEvaluator(), startBounds, endBounds) 60 .setDuration(RETURN_TO_DRAG_START_ANIMATION_MS) 61 .apply { 62 addListener( 63 onStart = { 64 val startTransaction = transactionSupplier.get() 65 startTransaction 66 .setPosition( 67 taskSurface, 68 startBounds.left.toFloat(), 69 startBounds.top.toFloat(), 70 ) 71 .show(taskSurface) 72 .apply() 73 taskRepositionAnimationListener.onAnimationStart(taskId) 74 }, 75 onEnd = { 76 val finishTransaction = transactionSupplier.get() 77 finishTransaction 78 .setPosition( 79 taskSurface, 80 endBounds.left.toFloat(), 81 endBounds.top.toFloat(), 82 ) 83 .show(taskSurface) 84 .apply() 85 taskRepositionAnimationListener.onAnimationEnd(taskId) 86 boundsAnimator = null 87 doOnEnd?.invoke() 88 interactionJankMonitor.end(Cuj.CUJ_DESKTOP_MODE_SNAP_RESIZE) 89 }, 90 ) 91 addUpdateListener { anim -> 92 val rect = anim.animatedValue as Rect 93 tx.setPosition(taskSurface, rect.left.toFloat(), rect.top.toFloat()) 94 .show(taskSurface) 95 .apply() 96 } 97 } 98 .also(ValueAnimator::start) 99 } 100 101 companion object { 102 const val RETURN_TO_DRAG_START_ANIMATION_MS = 300L 103 } 104 } 105