1 /*
2  * Copyright (C) 2019 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 #ifndef _UI_INPUT_INPUTDISPATCHER_TOUCHSTATE_H
18 #define _UI_INPUT_INPUTDISPATCHER_TOUCHSTATE_H
19 
20 #include "Monitor.h"
21 #include "TouchedWindow.h"
22 
23 namespace android {
24 
25 namespace gui {
26 class WindowInfoHandle;
27 }
28 
29 namespace inputdispatcher {
30 
31 struct TouchState {
32     bool down;
33     bool split;
34     int32_t deviceId;  // id of the device that is currently down, others are rejected
35     uint32_t source;   // source of the device that is current down, others are rejected
36     int32_t displayId; // id to the display that currently has a touch, others are rejected
37     std::vector<TouchedWindow> windows;
38 
39     // This collects the portal windows that the touch has gone through. Each portal window
40     // targets a display (embedded display for most cases). With this info, we can add the
41     // monitoring channels of the displays touched.
42     std::vector<sp<android::gui::WindowInfoHandle>> portalWindows;
43 
44     std::vector<TouchedMonitor> gestureMonitors;
45 
46     TouchState();
47     ~TouchState();
48     void reset();
49     void copyFrom(const TouchState& other);
50     void addOrUpdateWindow(const sp<android::gui::WindowInfoHandle>& windowHandle,
51                            int32_t targetFlags, BitSet32 pointerIds);
52     void addPortalWindow(const sp<android::gui::WindowInfoHandle>& windowHandle);
53     void addGestureMonitors(const std::vector<TouchedMonitor>& monitors);
54     void removeWindowByToken(const sp<IBinder>& token);
55     void filterNonAsIsTouchWindows();
56     void filterNonMonitors();
57     sp<android::gui::WindowInfoHandle> getFirstForegroundWindowHandle() const;
58     bool isSlippery() const;
59 };
60 
61 } // namespace inputdispatcher
62 } // namespace android
63 
64 #endif // _UI_INPUT_INPUTDISPATCHER_TOUCHSTATE_H
65