textInput static method

KeyBindings textInput({ required TextInputBuffer buffer(), bool isEnabled()?, void onInput()?, void onTextChanged()?, })

Text editing bindings for a fixed or dynamically focused buffer. Recognized editing keys are consumed even when nothing changes (for example, backspace at the start or typing at maxLength). onInput runs only when text or cursor state changes; onTextChanged runs only for text changes. Disabled bindings ignore events.

Implementation

static KeyBindings textInput({
  required TextInputBuffer Function() buffer,
  bool Function()? isEnabled,
  void Function()? onInput,
  void Function()? onTextChanged,
}) {
  return KeyBindings([
    KeyBinding(
      keys: {
        KeyEventType.char,
        KeyEventType.space,
        KeyEventType.slash,
        KeyEventType.backspace,
        KeyEventType.arrowLeft,
        KeyEventType.arrowRight,
      },
      action: (event) {
        if (isEnabled != null && !isEnabled()) return KeyActionResult.ignored;
        if (event.type == KeyEventType.char && event.printableText == null) {
          return KeyActionResult.ignored;
        }
        final input = buffer();
        final previousText = input.text;
        if (input.handleKey(event)) onInput?.call();
        if (input.text != previousText) onTextChanged?.call();
        return KeyActionResult.handled;
      },
    ),
  ]);
}