Class Input

packages/pi-tui/src/components/input.ts:19–447

 * Input component - single-line text input with horizontal scrolling
 */
export class Input implements Component, Focusable {
	private value: string = "";
	private cursor: number = 0; // Cursor position in the value
	public onSubmit?: (value: string) => void;
	public onEscape?: () => void;

	/** Focusable interface - set by TUI when focus changes */
	focused: boolean = false;

	// Bracketed paste mode buffering
	private pasteBuffer: string = "";
	private isInPaste: boolean = false;

	// Kill ring for Emacs-style kill/yank operations
	private killRing = new KillRing();
	private lastAction: "kill" | "yank" | "type-word" | null = null;

	// Undo support
	private undoStack = new UndoStack<InputState>();

	getValue(): string {
		return this.value;
	}

	setValue(value: string): void {
		this.value = value;
		this.cursor = Math.min(this.cursor, value.length);
	}

	handleInput(data: string): void {
		// Handle bracketed paste mode
		// Start of paste: \x1b[200~
		// End of paste: \x1b[201~

		// Check if we're starting a bracketed paste
		if (data.includes("\x1b[200~")) {
			this.isInPaste = true;
			this.pasteBuffer = "";
			data = data.replace("\x1b[200~", "");
		}

		// If we're in a paste, buffer the data
		if (this.isInPaste) {
			// Check if this chunk contains the end marker
			this.pasteBuffer += data;

			const endIndex = this.pasteBuffer.indexOf("\x1b[201~");
			if (endIndex !== -1) {
				// Extract the pasted content
				const pasteContent = this.pasteBuffer.substring(0, endIndex);

				// Process the complete paste
				this.handlePaste(pasteContent);

				// Reset paste state
				this.isInPaste = false;

				// Handle any remaining input after the paste marker