1 /* 2 * Copyright 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.compatui.letterbox 18 19 import android.view.SurfaceControl 20 21 // The key to use for identify the letterbox sessions. 22 data class LetterboxKey(val displayId: Int, val taskId: Int) 23 24 // Encapsulates the surfaces in the multiple surfaces scenario. 25 data class LetterboxSurfaces( 26 var leftSurface: SurfaceControl? = null, 27 var topSurface: SurfaceControl? = null, 28 var rightSurface: SurfaceControl? = null, 29 var bottomSurface: SurfaceControl? = null 30 ) : Iterable<SurfaceControl?> { iteratornull31 override fun iterator() = 32 listOf(leftSurface, topSurface, rightSurface, bottomSurface).iterator() 33 } 34