terminal-chat-ui/dist/hooks/useInputManager.js

Shared UI components for terminal-based chat interfaces using Theater actors

/**
 * Central input management hook
 */
import { useState, useCallback, useRef } from 'react';
export function useInputManager() {
    const [inputState, setInputState] = useState({
        focusTarget: 'input',
        inputContent: '',
        inputCursorPosition: 0,
        inputMode: 'insert'
    });
    const handlersRef = useRef(new Map());
    // Register an input handler
    const registerHandler = useCallback((id, handler) => {
        handlersRef.current.set(id, handler);
    }, []);
    // Unregister an input handler
    const unregisterHandler = useCallback((id) => {
        handlersRef.current.delete(id);
    }, []);
    // Central input dispatcher
    const dispatchInput = useCallback((event) => {
        // Get all active handlers sorted by priority
        const activeHandlers = Array.from(handlersRef.current.values())
            .filter(handler => handler.isActive)
            .sort((a, b) => b.priority - a.priority);
        // Try each handler until one handles the input
        for (const handler of activeHandlers) {
            if (handler.handleInput(event)) {
                return true; // Input was handled
            }
        }
        // If no handler processed the input, return false
        return false;
    }, []);
    // Helper methods for updating input state
    const updateInputContent = useCallback((content) => {
        setInputState(prev => ({ ...prev, inputContent: content }));
    }, []);
    const updateInputCursor = useCallback((position) => {
        setInputState(prev => ({ ...prev, inputCursorPosition: position }));
    }, []);
    const updateInputMode = useCallback((mode) => {
        setInputState(prev => ({ ...prev, inputMode: mode }));
    }, []);
    const setFocus = useCallback((target) => {
        setInputState(prev => ({ ...prev, focusTarget: target }));
    }, []);
    const clearInput = useCallback(() => {
        setInputState(prev => ({
            ...prev,
            inputContent: '',
            inputCursorPosition: 0,
            inputMode: 'insert'
        }));
    }, []);
    return {
        inputState,
        dispatchInput,
        registerHandler,
        unregisterHandler,
        updateInputContent,
        updateInputCursor,
        updateInputMode,
        setFocus,
        clearInput
    };
}