ink-multiline-input 📝

A robust multi-line text input component for Ink applications. 🚀

Features ✨

• ↕️ Vertical Scrolling: Automatically scrolls to keep the cursor in view.
• 🖱️ Cursor Navigation: Full support for arrow keys (Up, Down, Left, Right).
• 🔙 Editing: Supports Backspace and Delete keys.
• 🎨 Customization: Style the active line with highlightStyle.
• 🎭 Mask Support: Hide text with mask characters for password inputs.
• 📏 Flexible Sizing: Control visible rows with rows and maxRows.

Demo 🎬

📝 Typing

🧭 Navigation

✂️ Editing

🎨 Styling & Mask

📜 Scrolling

Installation 📦

npm install ink-multiline-input

Usage 🛠️

import React, { useState } from "react";
import { render, Box } from "ink";
import { MultilineInput } from "ink-multiline-input";

const App = () => {
  const [value, setValue] = useState("");

  return (
    <Box padding={1}>
      <MultilineInput
        value={value}
        onChange={setValue}
        rows={3}
        maxRows={10}
        placeholder="Type something here..."
        highlightStyle={{ backgroundColor: "blue" }}
        textStyle={{ color: "white" }}
        onSubmit={(val) => console.log("Submitted:", val)}
        keyBindings={{
          submit: (key) => key.ctrl && key.return,
        }}
      />
    </Box>
  );
};

render(<App />);

Props ⚙️

MultilineInput (Controlled)

Prop	Type	Default	Description
value	string	-	📝 The current value of the input.
onChange	(value: string) => void	-	🔄 Callback function triggered when the value changes.
onSubmit	(value: string) => void	-	🚀 (Optional) Callback triggered when the submit key is pressed.
rows	number	-	📏 (Optional) Minimum number of rows to display.
maxRows	number	-	📏 (Optional) Maximum number of rows to display.
highlightStyle	TextProps	-	🎨 (Optional) Style to apply to the current line.
textStyle	TextProps	-	🔤 (Optional) Style to apply to the text.
placeholder	string	""	📭 (Optional) Text to display when value is empty.
mask	string	-	🎭 (Optional) Character to mask text (e.g., "*" for passwords).
showCursor	boolean	true	🖱️ (Optional) Whether to show the cursor.
focus	boolean	true	🎯 (Optional) Whether this input should receive keyboard input.
tabSize	number	4	↔️ (Optional) Number of spaces to expand tabs to.
keyBindings	object	-	⌨️ (Optional) Custom key bindings for submit and newline.
highlightPastedText	boolean	false	🎨 (Optional) Highlight recently pasted text.
useCustomInput	function	-	🔌 (Optional) Custom input hook to replace default useInput.

Key Bindings

You can customize which keys trigger specific actions:

keyBindings={{
  submit: (key) => key.ctrl && key.return, // Ctrl+Enter to submit
  newline: (key) => key.return, // Enter for newline (default)
}}

UncontrolledMultilineInput

For advanced use cases where you want to control the cursor position yourself, use UncontrolledMultilineInput:

import { UncontrolledMultilineInput } from "ink-multiline-input";

<UncontrolledMultilineInput
  value={text}
  cursorIndex={cursorPos}
  rows={5}
  maxRows={10}
  showCursor={true}
  focus={true}
/>;

API Documentation 📚

For detailed API documentation, see the API Reference.

License 📄

MIT