1 /* 2 * Copyright (C) 2025 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.wm.shell.desktopmode 17 18 import android.os.IBinder 19 import android.view.SurfaceControl 20 import android.window.TransitionInfo 21 import android.window.TransitionRequestInfo 22 import android.window.WindowContainerTransaction 23 import com.android.wm.shell.transition.Transitions 24 25 /** Handles the transition to drag a window to another display by dragging the caption. */ 26 class DragToDisplayTransitionHandler : Transitions.TransitionHandler { handleRequestnull27 override fun handleRequest( 28 transition: IBinder, 29 request: TransitionRequestInfo, 30 ): WindowContainerTransaction? { 31 return null 32 } 33 startAnimationnull34 override fun startAnimation( 35 transition: IBinder, 36 info: TransitionInfo, 37 startTransaction: SurfaceControl.Transaction, 38 finishTransaction: SurfaceControl.Transaction, 39 finishCallback: Transitions.TransitionFinishCallback, 40 ): Boolean { 41 for (change in info.changes) { 42 val sc = change.leash 43 val endBounds = change.endAbsBounds 44 val endPosition = change.endRelOffset 45 startTransaction 46 .setWindowCrop(sc, endBounds.width(), endBounds.height()) 47 .setPosition(sc, endPosition.x.toFloat(), endPosition.y.toFloat()) 48 finishTransaction 49 .setWindowCrop(sc, endBounds.width(), endBounds.height()) 50 .setPosition(sc, endPosition.x.toFloat(), endPosition.y.toFloat()) 51 } 52 53 startTransaction.apply() 54 finishCallback.onTransitionFinished(null) 55 return true 56 } 57 } 58