Class App

src/ink/components/App.tsx:101–440

// It renders stdin and stdout contexts, so that children can access them if needed
// It also handles Ctrl+C exiting and cursor visibility
export default class App extends PureComponent<Props, State> {
  static displayName = 'InternalApp';
  static getDerivedStateFromError(error: Error) {
    return {
      error
    };
  }
  override state = {
    error: undefined
  };

  // Count how many components enabled raw mode to avoid disabling
  // raw mode until all components don't need it anymore
  rawModeEnabledCount = 0;
  internal_eventEmitter = new EventEmitter();
  keyParseState = INITIAL_STATE;
  // Timer for flushing incomplete escape sequences
  incompleteEscapeTimer: NodeJS.Timeout | null = null;
  // Timeout durations for incomplete sequences (ms)
  readonly NORMAL_TIMEOUT = 50; // Short timeout for regular esc sequences
  readonly PASTE_TIMEOUT = 500; // Longer timeout for paste operations

  // Terminal query/response dispatch. Responses arrive on stdin (parsed
  // out by parse-keypress) and are routed to pending promise resolvers.
  querier = new TerminalQuerier(this.props.stdout);

  // Multi-click tracking for double/triple-click text selection. A click
  // within MULTI_CLICK_TIMEOUT_MS and MULTI_CLICK_DISTANCE of the previous
  // click increments clickCount; otherwise it resets to 1.
  lastClickTime = 0;
  lastClickCol = -1;
  lastClickRow = -1;
  clickCount = 0;
  // Deferred hyperlink-open timer — cancelled if a second click arrives
  // within MULTI_CLICK_TIMEOUT_MS (so double-clicking a hyperlink selects
  // the word without also opening the browser). DOM onClick dispatch is
  // NOT deferred — it returns true from onClickAt and skips this timer.
  pendingHyperlinkTimer: ReturnType<typeof setTimeout> | null = null;
  // Last mode-1003 motion position. Terminals already dedupe to cell
  // granularity but this also lets us skip dispatchHover entirely on
  // repeat events (drag-then-release at same cell, etc.).
  lastHoverCol = -1;
  lastHoverRow = -1;

  // Timestamp of last stdin chunk. Used to detect long gaps (tmux attach,
  // ssh reconnect, laptop wake) and trigger terminal mode re-assert.
  // Initialized to now so startup doesn't false-trigger.
  lastStdinTime = Date.now();

  // Determines if TTY is supported on the provided stdin
  isRawModeSupported(): boolean {
    return this.props.stdin.isTTY;
  }
  override render() {
    return <TerminalSizeContext.Provider value={{
      columns: this.props.terminalColumns,
      rows: this.props.terminalRows
    }}>