1 /* 2 * Copyright (C) 2016 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.server.wm; 18 19 import static android.app.ActivityManager.StackId.DOCKED_STACK_ID; 20 import static android.app.ActivityManager.StackId.FREEFORM_WORKSPACE_STACK_ID; 21 import static android.app.ActivityManager.StackId.FULLSCREEN_WORKSPACE_STACK_ID; 22 import static android.app.ActivityManager.StackId.HOME_STACK_ID; 23 24 /** 25 * Describes the mode in which a window is drag resizing. 26 */ 27 class DragResizeMode { 28 29 /** 30 * Freeform mode: Client surface is fullscreen, and client is responsible to draw window at 31 * the correct position. 32 */ 33 static final int DRAG_RESIZE_MODE_FREEFORM = 0; 34 35 /** 36 * Mode for resizing the docked (and adjacent) stack: Client surface is fullscreen, but window 37 * is drawn at (0, 0), window manager is responsible for positioning the surface when draging. 38 */ 39 static final int DRAG_RESIZE_MODE_DOCKED_DIVIDER = 1; 40 isModeAllowedForStack(int stackId, int mode)41 static boolean isModeAllowedForStack(int stackId, int mode) { 42 switch (mode) { 43 case DRAG_RESIZE_MODE_FREEFORM: 44 return stackId == FREEFORM_WORKSPACE_STACK_ID; 45 case DRAG_RESIZE_MODE_DOCKED_DIVIDER: 46 return stackId == DOCKED_STACK_ID 47 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 48 || stackId == HOME_STACK_ID; 49 default: 50 return false; 51 } 52 } 53 } 54