| /* |
| * Copyright (c) 2021-2023 Project CHIP Authors |
| * All rights reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include <cstddef> |
| #include <set> |
| |
| class ButtonBackend |
| { |
| public: |
| virtual bool linkHW(void (*on_button_change)(size_t button, bool pressed, void * context), void * context) = 0; |
| }; |
| |
| class ButtonManager |
| { |
| public: |
| static ButtonManager & getInstance(); |
| void addCallback(void (*callback)(void), size_t button, bool pressed); |
| void rmCallback(void (*callback)(void)); |
| void rmCallback(size_t button, bool pressed); |
| void linkBackend(ButtonBackend & backend); |
| |
| ButtonManager(ButtonManager const &) = delete; |
| void operator=(ButtonManager const &) = delete; |
| |
| private: |
| struct Event |
| { |
| size_t button; |
| bool pressed; |
| void (*callback)(void); |
| |
| friend bool operator<(const Event & lhs, const Event & rhs) |
| { |
| if (lhs.button < rhs.button) |
| { |
| return true; |
| } |
| else if (lhs.button > rhs.button) |
| { |
| return false; |
| } |
| else if (lhs.pressed < rhs.pressed) |
| { |
| return true; |
| } |
| else if (lhs.pressed > rhs.pressed) |
| { |
| return false; |
| } |
| else if (lhs.callback < rhs.callback) |
| { |
| return true; |
| } |
| else |
| { |
| return false; |
| } |
| } |
| friend bool operator>(const Event & lhs, const Event & rhs) |
| { |
| if (lhs.button > rhs.button) |
| { |
| return true; |
| } |
| else if (lhs.button < rhs.button) |
| { |
| return false; |
| } |
| else if (lhs.pressed > rhs.pressed) |
| { |
| return true; |
| } |
| else if (lhs.pressed < rhs.pressed) |
| { |
| return false; |
| } |
| else if (lhs.callback > rhs.callback) |
| { |
| return true; |
| } |
| else |
| { |
| return false; |
| } |
| } |
| }; |
| |
| ButtonManager(); |
| |
| static void onButton(size_t button, bool pressed, void * buttonMgr); |
| |
| std::set<Event> m_events; |
| }; |
| |
| #if CONFIG_CHIP_BUTTON_MANAGER_IRQ_MODE |
| |
| class ButtonPool : public ButtonBackend |
| { |
| public: |
| static ButtonPool & getInstance(); |
| bool linkHW(void (*on_button_change)(size_t button, bool pressed, void * context), void * context); |
| |
| ButtonPool(ButtonPool const &) = delete; |
| void operator=(ButtonPool const &) = delete; |
| |
| private: |
| ButtonPool(){}; |
| }; |
| |
| #else |
| |
| class ButtonMatrix : public ButtonBackend |
| { |
| public: |
| static ButtonMatrix & getInstance(); |
| bool linkHW(void (*on_button_change)(size_t button, bool pressed, void * context), void * context); |
| |
| ButtonMatrix(ButtonMatrix const &) = delete; |
| void operator=(ButtonMatrix const &) = delete; |
| |
| private: |
| ButtonMatrix(){}; |
| }; |
| |
| #endif // CONFIG_CHIP_BUTTON_MANAGER_IRQ_MODE |