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 17 package com.android.wm.shell.splitscreen 18 19 import android.window.WindowContainerToken 20 21 interface SplitMultiDisplayProvider { 22 /** 23 * Returns the WindowContainerToken for the root of the given display ID. 24 * 25 * @param displayId The ID of the display. 26 * @return The {@link WindowContainerToken} associated with the display's root task. 27 */ getDisplayRootForDisplayIdnull28 fun getDisplayRootForDisplayId(displayId: Int): WindowContainerToken? 29 } 30