Colin Cross | a866695 | 2010-04-13 19:20:44 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 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 _INIT_KEYCHORDS_H_ |
| 18 | #define _INIT_KEYCHORDS_H_ |
| 19 | |
Mark Salyzyn | eca2507 | 2018-05-16 15:10:24 -0700 | [diff] [blame] | 20 | #include <functional> |
Mark Salyzyn | 06aeb41 | 2018-05-18 15:25:15 -0700 | [diff] [blame] | 21 | #include <map> |
| 22 | #include <string> |
Mark Salyzyn | eca2507 | 2018-05-16 15:10:24 -0700 | [diff] [blame] | 23 | #include <vector> |
| 24 | |
Mark Salyzyn | 6c6ec72 | 2015-10-24 16:20:18 -0700 | [diff] [blame] | 25 | #include "epoll.h" |
Colin Cross | a866695 | 2010-04-13 19:20:44 -0700 | [diff] [blame] | 26 | |
Tom Cherry | 81f5d3e | 2017-06-22 12:53:17 -0700 | [diff] [blame] | 27 | namespace android { |
| 28 | namespace init { |
| 29 | |
Mark Salyzyn | 06aeb41 | 2018-05-18 15:25:15 -0700 | [diff] [blame] | 30 | class Keychords { |
| 31 | public: |
| 32 | Keychords(); |
| 33 | Keychords(const Keychords&) = delete; |
| 34 | Keychords(Keychords&&) = delete; |
| 35 | Keychords& operator=(const Keychords&) = delete; |
| 36 | Keychords& operator=(Keychords&&) = delete; |
| 37 | ~Keychords() noexcept; |
| 38 | |
Mark Salyzyn | 1385725 | 2018-05-18 15:25:15 -0700 | [diff] [blame] | 39 | void Register(const std::vector<int>& keycodes); |
| 40 | void Start(Epoll* epoll, std::function<void(const std::vector<int>&)> handler); |
Mark Salyzyn | 06aeb41 | 2018-05-18 15:25:15 -0700 | [diff] [blame] | 41 | |
| 42 | private: |
| 43 | // Bit management |
| 44 | class Mask { |
| 45 | public: |
| 46 | explicit Mask(size_t bit = 0); |
| 47 | |
| 48 | void SetBit(size_t bit, bool value = true); |
| 49 | bool GetBit(size_t bit) const; |
| 50 | |
| 51 | size_t bytesize() const; |
| 52 | void* data(); |
| 53 | size_t size() const; |
| 54 | void resize(size_t bit); |
| 55 | |
| 56 | operator bool() const; |
| 57 | Mask operator&(const Mask& rval) const; |
| 58 | void operator|=(const Mask& rval); |
| 59 | |
| 60 | private: |
| 61 | typedef unsigned int mask_t; |
| 62 | static constexpr size_t kBitsPerByte = 8; |
| 63 | |
| 64 | std::vector<mask_t> bits_; |
| 65 | }; |
| 66 | |
| 67 | struct Entry { |
Mark Salyzyn | 1385725 | 2018-05-18 15:25:15 -0700 | [diff] [blame] | 68 | Entry(); |
Mark Salyzyn | 06aeb41 | 2018-05-18 15:25:15 -0700 | [diff] [blame] | 69 | |
Mark Salyzyn | 06aeb41 | 2018-05-18 15:25:15 -0700 | [diff] [blame] | 70 | bool notified; |
| 71 | }; |
| 72 | |
| 73 | static constexpr char kDevicePath[] = "/dev/input"; |
| 74 | |
| 75 | void LambdaCheck(); |
| 76 | void LambdaHandler(int fd); |
| 77 | void InotifyHandler(); |
| 78 | |
| 79 | bool GeteventEnable(int fd); |
| 80 | void GeteventOpenDevice(const std::string& device); |
| 81 | void GeteventOpenDevice(); |
| 82 | void GeteventCloseDevice(const std::string& device); |
| 83 | |
| 84 | Epoll* epoll_; |
Mark Salyzyn | 1385725 | 2018-05-18 15:25:15 -0700 | [diff] [blame] | 85 | std::function<void(const std::vector<int>&)> handler_; |
Mark Salyzyn | 06aeb41 | 2018-05-18 15:25:15 -0700 | [diff] [blame] | 86 | |
| 87 | std::map<std::string, int> registration_; |
| 88 | |
Mark Salyzyn | 1385725 | 2018-05-18 15:25:15 -0700 | [diff] [blame] | 89 | std::map<const std::vector<int>, Entry> entries_; |
Mark Salyzyn | 06aeb41 | 2018-05-18 15:25:15 -0700 | [diff] [blame] | 90 | |
| 91 | Mask current_; |
| 92 | |
| 93 | int inotify_fd_; |
| 94 | }; |
Colin Cross | a866695 | 2010-04-13 19:20:44 -0700 | [diff] [blame] | 95 | |
Tom Cherry | 81f5d3e | 2017-06-22 12:53:17 -0700 | [diff] [blame] | 96 | } // namespace init |
| 97 | } // namespace android |
| 98 | |
Colin Cross | a866695 | 2010-04-13 19:20:44 -0700 | [diff] [blame] | 99 | #endif |