137 lines
4.9 KiB
C++
137 lines
4.9 KiB
C++
/*++
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Copyright (c) Microsoft Corporation
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Licensed under the MIT license.
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Module Name:
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- terminalInput.hpp
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Abstract:
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- This serves as an adapter between virtual key input from a user and the virtual terminal sequences that are
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typically emitted by an xterm-compatible console.
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Author(s):
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- Michael Niksa (MiNiksa) 30-Oct-2015
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--*/
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#include <functional>
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#include "../../types/inc/IInputEvent.hpp"
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#pragma once
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namespace Microsoft::Console::VirtualTerminal
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{
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class TerminalInput final
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{
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public:
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TerminalInput(_In_ std::function<void(std::deque<std::unique_ptr<IInputEvent>>&)> pfn);
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TerminalInput() = delete;
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TerminalInput(const TerminalInput& old) = default;
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TerminalInput(TerminalInput&& moved) = default;
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TerminalInput& operator=(const TerminalInput& old) = default;
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TerminalInput& operator=(TerminalInput&& moved) = default;
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~TerminalInput() = default;
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bool HandleKey(const IInputEvent* const pInEvent);
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enum class Mode : size_t
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{
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Ansi,
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Keypad,
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CursorKey,
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Win32,
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Utf8MouseEncoding,
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SgrMouseEncoding,
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DefaultMouseTracking,
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ButtonEventMouseTracking,
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AnyEventMouseTracking,
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AlternateScroll
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};
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void SetInputMode(const Mode mode, const bool enabled) noexcept;
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bool GetInputMode(const Mode mode) const noexcept;
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void ForceDisableWin32InputMode(const bool win32InputMode) noexcept;
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#pragma region MouseInput
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// These methods are defined in mouseInput.cpp
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struct MouseButtonState
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{
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bool isLeftButtonDown;
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bool isMiddleButtonDown;
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bool isRightButtonDown;
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};
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bool HandleMouse(const COORD position,
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const unsigned int button,
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const short modifierKeyState,
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const short delta,
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const MouseButtonState state);
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bool IsTrackingMouseInput() const noexcept;
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#pragma endregion
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#pragma region MouseInputState Management
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// These methods are defined in mouseInputState.cpp
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void UseAlternateScreenBuffer() noexcept;
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void UseMainScreenBuffer() noexcept;
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#pragma endregion
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private:
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std::function<void(std::deque<std::unique_ptr<IInputEvent>>&)> _pfnWriteEvents;
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// storage location for the leading surrogate of a utf-16 surrogate pair
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std::optional<wchar_t> _leadingSurrogate;
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til::enumset<Mode> _inputMode{ Mode::Ansi };
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bool _forceDisableWin32InputMode{ false };
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void _SendChar(const wchar_t ch);
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void _SendNullInputSequence(const DWORD dwControlKeyState) const;
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void _SendInputSequence(const std::wstring_view sequence) const noexcept;
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void _SendEscapedInputSequence(const wchar_t wch) const;
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static std::wstring _GenerateWin32KeySequence(const KeyEvent& key);
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#pragma region MouseInputState Management
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// These methods are defined in mouseInputState.cpp
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struct MouseInputState
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{
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bool inAlternateBuffer{ false };
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COORD lastPos{ -1, -1 };
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unsigned int lastButton{ 0 };
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int accumulatedDelta{ 0 };
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};
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MouseInputState _mouseInputState;
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#pragma endregion
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#pragma region MouseInput
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static std::wstring _GenerateDefaultSequence(const COORD position,
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const unsigned int button,
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const bool isHover,
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const short modifierKeyState,
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const short delta);
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static std::wstring _GenerateUtf8Sequence(const COORD position,
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const unsigned int button,
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const bool isHover,
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const short modifierKeyState,
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const short delta);
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static std::wstring _GenerateSGRSequence(const COORD position,
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const unsigned int button,
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const bool isDown,
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const bool isHover,
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const short modifierKeyState,
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const short delta);
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bool _ShouldSendAlternateScroll(const unsigned int button, const short delta) const noexcept;
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bool _SendAlternateScroll(const short delta) const noexcept;
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static constexpr unsigned int s_GetPressedButton(const MouseButtonState state) noexcept;
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#pragma endregion
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};
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}
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