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https://github.com/RGBCube/serenity
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Start working on virtual consoles/TTYs.
This is a mess right now, but I'd rather commit as I go.
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22 changed files with 611 additions and 344 deletions
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@ -4,6 +4,12 @@
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#include <AK/Vector.h>
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#include <VirtualFileSystem/CharacterDevice.h>
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class ConsoleImplementation {
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public:
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virtual ~ConsoleImplementation();
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virtual void onConsoleReceive(byte) = 0;
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};
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class Console final : public CharacterDevice {
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public:
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static Console& the() PURE;
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@ -15,37 +21,11 @@ public:
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virtual ssize_t read(byte* buffer, size_t size) override;
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virtual ssize_t write(const byte* data, size_t size) override;
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void setImplementation(ConsoleImplementation* implementation) { m_implementation = implementation; }
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void putChar(char);
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private:
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void escape$H(const Vector<unsigned>&);
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void escape$J(const Vector<unsigned>&);
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void escape$m(const Vector<unsigned>&);
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void escape$s(const Vector<unsigned>&);
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void escape$u(const Vector<unsigned>&);
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const byte m_rows { 25 };
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const byte m_columns { 80 };
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byte m_cursorRow { 0 };
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byte m_cursorColumn { 0 };
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byte m_savedCursorRow { 0 };
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byte m_savedCursorColumn { 0 };
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byte m_currentAttribute { 0x07 };
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void executeEscapeSequence(byte final);
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enum EscapeState {
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Normal,
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ExpectBracket,
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ExpectParameter,
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ExpectIntermediate,
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ExpectFinal,
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};
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EscapeState m_escState { Normal };
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Vector<byte> m_parameters;
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Vector<byte> m_intermediates;
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ConsoleImplementation* m_implementation { nullptr };
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};
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