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kte/InputHandler.h
2026-02-17 13:44:36 -08:00

32 lines
859 B
C++

/*
* InputHandler.h - input abstraction and mapping to commands
*/
#pragma once
#include <string>
#include "Command.h"
class Editor; // fwd decl
// Result of translating raw input into an editor command.
struct MappedInput {
bool hasCommand = false;
CommandId id = CommandId::Refresh;
std::string arg; // optional argument (e.g., text for InsertText)
int count = 0; // optional repeat (C-u not yet implemented)
};
class InputHandler {
public:
virtual ~InputHandler() = default;
// Optional: attach current Editor so handlers can consult editor state (e.g., universal argument)
// Default implementation does nothing.
virtual void Attach(Editor *) {}
// Poll for input and translate it to a command. Non-blocking.
// Returns true if a command is available in 'out'. Returns false if no input.
virtual bool Poll(MappedInput &out) = 0;
};