InputCommon: add Keyboard
wwylele
parent
70420272ca
commit
38e800f70d
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set(SRCS
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keyboard.cpp
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main.cpp
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)
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set(HEADERS
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keyboard.h
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main.h
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)
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create_directory_groups(${SRCS} ${HEADERS})
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add_library(input_common STATIC ${SRCS} ${HEADERS})
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target_link_libraries(input_common common core)
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// 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 <atomic>
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#include <list>
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#include <mutex>
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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::shared_ptr<KeyButtonList> key_button_list_)
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: key_button_list(key_button_list_) {}
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~KeyButton();
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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::shared_ptr<KeyButtonList> key_button_list;
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std::atomic<bool> status{false};
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};
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struct KeyButtonPair {
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int key_code;
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KeyButton* key_button;
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};
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class KeyButtonList {
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public:
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void AddKeyButton(int key_code, KeyButton* key_button) {
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std::lock_guard<std::mutex> guard(mutex);
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list.push_back(KeyButtonPair{key_code, key_button});
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}
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void RemoveKeyButton(const KeyButton* key_button) {
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std::lock_guard<std::mutex> guard(mutex);
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list.remove_if(
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[key_button](const KeyButtonPair& pair) { return pair.key_button == key_button; });
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}
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void ChangeKeyStatus(int key_code, bool pressed) {
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std::lock_guard<std::mutex> guard(mutex);
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for (const KeyButtonPair& pair : list) {
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if (pair.key_code == key_code)
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pair.key_button->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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KeyButton::~KeyButton() {
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key_button_list->RemoveKeyButton(this);
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}
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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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std::unique_ptr<KeyButton> button = std::make_unique<KeyButton>(key_button_list);
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key_button_list->AddKeyButton(key_code, button.get());
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return std::move(button);
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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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} // namespace InputCommon
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// 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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#pragma once
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#include <memory>
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#include "core/frontend/input.h"
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namespace InputCommon {
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class KeyButtonList;
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/**
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* A button device factory representing a keyboard. It receives keyboard events and forward them
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* to all button devices it created.
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*/
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class Keyboard final : public Input::Factory<Input::ButtonDevice> {
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public:
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Keyboard();
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/**
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* Creates a button device from a keyboard key
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* @param params contains parameters for creating the device:
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* - "code": the code of the key to bind with the button
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*/
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std::unique_ptr<Input::ButtonDevice> Create(const Common::ParamPackage& params) override;
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/**
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* Sets the status of all buttons bound with the key to pressed
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* @param key_code the code of the key to press
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*/
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void PressKey(int key_code);
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/**
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* Sets the status of all buttons bound with the key to released
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* @param key_code the code of the key to release
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*/
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void ReleaseKey(int key_code);
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private:
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std::shared_ptr<KeyButtonList> key_button_list;
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};
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} // namespace InputCommon
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// 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 <memory>
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#include "common/param_package.h"
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#include "input_common/keyboard.h"
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#include "input_common/main.h"
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namespace InputCommon {
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static std::shared_ptr<Keyboard> keyboard;
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void Init() {
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keyboard = std::make_shared<InputCommon::Keyboard>();
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Input::RegisterFactory<Input::ButtonDevice>("keyboard", keyboard);
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}
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void Shutdown() {
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Input::UnregisterFactory<Input::ButtonDevice>("keyboard");
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keyboard.reset();
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}
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Keyboard* GetKeyboard() {
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return keyboard.get();
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}
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std::string GenerateKeyboardParam(int key_code) {
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Common::ParamPackage param{
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{"engine", "keyboard"}, {"code", std::to_string(key_code)},
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};
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return param.Serialize();
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}
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} // namespace InputCommon
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@ -0,0 +1,25 @@
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// 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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#pragma once
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#include <string>
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namespace InputCommon {
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/// Initializes and registers all built-in input device factories.
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void Init();
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/// Unresisters all build-in input device factories and shut them down.
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void Shutdown();
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class Keyboard;
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/// Gets the keyboard button device factory.
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Keyboard* GetKeyboard();
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/// Generates a serialized param package for creating a keyboard button device
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std::string GenerateKeyboardParam(int key_code);
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} // namespace InputCommon
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