1 /*
2  * Copyright (C) 2012 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 android.graphics.Rect;
20 
21 /**
22  * Keeps information about the docked stack divider.
23  */
24 public class DockedStackDividerController {
25 
26     private final DisplayContent mDisplayContent;
27     private boolean mResizing;
28 
29     private final Rect mTouchRegion = new Rect();
30 
DockedStackDividerController(DisplayContent displayContent)31     DockedStackDividerController(DisplayContent displayContent) {
32         mDisplayContent = displayContent;
33     }
34 
isResizing()35     boolean isResizing() {
36         return mResizing;
37     }
38 
setResizing(boolean resizing)39     void setResizing(boolean resizing) {
40         if (mResizing != resizing) {
41             mResizing = resizing;
42             resetDragResizingChangeReported();
43         }
44     }
45 
setTouchRegion(Rect touchRegion)46     void setTouchRegion(Rect touchRegion) {
47         mTouchRegion.set(touchRegion);
48         // We need to report touchable region changes to accessibility.
49         if (mDisplayContent.mWmService.mAccessibilityController != null) {
50             mDisplayContent.mWmService.mAccessibilityController.onSomeWindowResizedOrMovedLocked(
51                     mDisplayContent.getDisplayId());
52         }
53     }
54 
getTouchRegion(Rect outRegion)55     void getTouchRegion(Rect outRegion) {
56         outRegion.set(mTouchRegion);
57     }
58 
resetDragResizingChangeReported()59     private void resetDragResizingChangeReported() {
60         mDisplayContent.forAllWindows(WindowState::resetDragResizingChangeReported,
61                 true /* traverseTopToBottom */ );
62     }
63 }
64