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C++

/**
* FreeRDP: A Remote Desktop Protocol Implementation
* SDL Client keyboard helper
*
* Copyright 2022 Armin Novak <armin.novak@thincast.com>
*
* 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 <string>
#include <map>
#include <list>
#include <atomic>
#include <winpr/wtypes.h>
#include <freerdp/freerdp.h>
#include <freerdp/locale/keyboard.h>
#include <SDL3/SDL.h>
#include "sdl_types.hpp"
class sdlInput
{
public:
explicit sdlInput(SdlContext* sdl);
sdlInput(const sdlInput& other) = delete;
sdlInput(sdlInput&& other) = delete;
virtual ~sdlInput();
sdlInput& operator=(const sdlInput& other) = delete;
sdlInput& operator=(sdlInput&& other) = delete;
[[nodiscard]] bool initialize();
[[nodiscard]] bool keyboard_sync_state();
[[nodiscard]] bool keyboard_focus_in();
[[nodiscard]] bool handleEvent(const SDL_KeyboardEvent& ev);
[[nodiscard]] bool keyboard_grab(Uint32 windowID, bool enable);
[[nodiscard]] bool mouse_focus(Uint32 windowID);
[[nodiscard]] bool mouse_grab(Uint32 windowID, bool enable);
[[nodiscard]] static BOOL keyboard_set_indicators(rdpContext* context, UINT16 led_flags);
[[nodiscard]] static BOOL keyboard_set_ime_status(rdpContext* context, UINT16 imeId,
UINT32 imeState, UINT32 imeConvMode);
[[nodiscard]] bool prefToEnabled();
[[nodiscard]] uint32_t prefToMask();
[[nodiscard]] static uint32_t prefKeyValue(const std::string& key,
uint32_t fallback = SDL_SCANCODE_UNKNOWN);
private:
[[nodiscard]] static std::list<std::string> tokenize(const std::string& data,
const std::string& delimiter = ",");
[[nodiscard]] static bool extract(const std::string& token, uint32_t& key, uint32_t& value);
[[nodiscard]] UINT32 scancode_to_rdp(Uint32 scancode);
SdlContext* _sdl = nullptr;
Uint32 _lastWindowID = 0;
// hotkey handling
bool _hotkeysEnabled = false;
uint32_t _hotkeyModmask = 0; // modifier keys mask
uint32_t _hotkeyFullscreen = 0;
uint32_t _hotkeyResizable = 0;
uint32_t _hotkeyGrab = 0;
uint32_t _hotkeyDisconnect = 0;
uint32_t _hotkeyMinimize = 0;
FREERDP_REMAP_TABLE* _remapTable = nullptr;
};