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 #pragma once
18 
19 #include <stdint.h>
20 
21 namespace android {
22 
23 class InputDeviceContext;
24 struct RawEvent;
25 
26 /* Keeps track of the state of mouse or touch pad buttons. */
27 class CursorButtonAccumulator {
28 public:
29     CursorButtonAccumulator();
30     void reset(const InputDeviceContext& deviceContext);
31 
32     void process(const RawEvent& rawEvent);
33 
34     uint32_t getButtonState() const;
isLeftPressed()35     inline bool isLeftPressed() const { return mBtnLeft; }
isRightPressed()36     inline bool isRightPressed() const { return mBtnRight; }
isMiddlePressed()37     inline bool isMiddlePressed() const { return mBtnMiddle; }
isBackPressed()38     inline bool isBackPressed() const { return mBtnBack; }
isSidePressed()39     inline bool isSidePressed() const { return mBtnSide; }
isForwardPressed()40     inline bool isForwardPressed() const { return mBtnForward; }
isExtraPressed()41     inline bool isExtraPressed() const { return mBtnExtra; }
isTaskPressed()42     inline bool isTaskPressed() const { return mBtnTask; }
43 
44 private:
45     bool mBtnLeft;
46     bool mBtnRight;
47     bool mBtnMiddle;
48     bool mBtnBack;
49     bool mBtnSide;
50     bool mBtnForward;
51     bool mBtnExtra;
52     bool mBtnTask;
53 
54     void clearButtons();
55 };
56 
57 } // namespace android
58