90 lines
2.2 KiB
C++
90 lines
2.2 KiB
C++
// Copyright 2017 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <algorithm>
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#include <atomic>
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#include <list>
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#include <mutex>
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#include <utility>
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#include "input_common/keyboard.h"
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namespace InputCommon {
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class KeyButton final : public Input::ButtonDevice {
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public:
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explicit KeyButton(std::atomic<bool>& status_) : status(status_) {}
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~KeyButton() override = default;
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bool GetStatus() const override {
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return status.load();
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}
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friend class KeyButtonList;
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private:
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std::atomic<bool>& status;
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};
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struct KeyButtonPair {
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explicit KeyButtonPair(int key_code_) : key_code(key_code_) {}
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int key_code;
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std::atomic<bool> status{false};
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};
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class KeyButtonList {
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public:
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KeyButtonPair& AddKeyButton(int key_code) {
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std::lock_guard guard{mutex};
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auto it = std::find_if(list.begin(), list.end(), [key_code](const KeyButtonPair& pair) {
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return pair.key_code == key_code;
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});
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if (it == list.end()) {
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return list.emplace_back(key_code);
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}
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return *it;
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}
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void ChangeKeyStatus(int key_code, bool pressed) {
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std::lock_guard guard{mutex};
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for (KeyButtonPair& pair : list) {
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if (pair.key_code == key_code)
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pair.status.store(pressed);
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}
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}
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void ChangeAllKeyStatus(bool pressed) {
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std::lock_guard guard{mutex};
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for (KeyButtonPair& pair : list) {
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pair.status.store(pressed);
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}
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}
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private:
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std::mutex mutex;
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std::list<KeyButtonPair> list;
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};
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Keyboard::Keyboard() : key_button_list{std::make_shared<KeyButtonList>()} {}
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std::unique_ptr<Input::ButtonDevice> Keyboard::Create(const Common::ParamPackage& params) {
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int key_code = params.Get("code", 0);
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auto& pair = key_button_list->AddKeyButton(key_code);
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return std::make_unique<KeyButton>(pair.status);
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}
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void Keyboard::PressKey(int key_code) {
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key_button_list->ChangeKeyStatus(key_code, true);
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}
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void Keyboard::ReleaseKey(int key_code) {
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key_button_list->ChangeKeyStatus(key_code, false);
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}
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void Keyboard::ReleaseAllKeys() {
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key_button_list->ChangeAllKeyStatus(false);
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}
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} // namespace InputCommon
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