onKey method

@override bool onKey(KeyEvent event, RenderContext ctx)

Implementation

@override
bool onKey(KeyEvent event, RenderContext ctx) {
  final filtered = _derived();
  if (filtered.isEmpty) return false;

  state.activeRow = state.activeRow.clamp(0, filtered.length - 1);
  state.activeColumn = state.activeColumn.clamp(0, columns.length - 1);

  if (event.key == NamedKey.arrowDown || event.char == 'j') {
    state.activeRow = (state.activeRow + 1).clamp(0, filtered.length - 1);
    return true;
  }
  if (event.key == NamedKey.arrowUp || event.char == 'k') {
    state.activeRow = (state.activeRow - 1).clamp(0, filtered.length - 1);
    return true;
  }
  if (event.key == NamedKey.arrowRight || event.char == 'l') {
    state.activeColumn =
        (state.activeColumn + 1).clamp(0, columns.length - 1);
    return true;
  }
  if (event.key == NamedKey.arrowLeft || event.char == 'h') {
    state.activeColumn =
        (state.activeColumn - 1).clamp(0, columns.length - 1);
    return true;
  }
  if (event.key == NamedKey.home) {
    if (event.ctrl) {
      state.activeColumn = 0;
    } else {
      state.activeRow = 0;
    }
    return true;
  }
  if (event.key == NamedKey.end) {
    if (event.ctrl) {
      state.activeColumn = columns.length - 1;
    } else {
      state.activeRow = filtered.length - 1;
    }
    return true;
  }
  if (event.key == NamedKey.pageDown) {
    state.activeRow = (state.activeRow + 10).clamp(0, filtered.length - 1);
    return true;
  }
  if (event.key == NamedKey.pageUp) {
    state.activeRow = (state.activeRow - 10).clamp(0, filtered.length - 1);
    return true;
  }
  if (event.key == NamedKey.enter) {
    onRowActivated?.call(state.activeRow, filtered[state.activeRow]);
    return true;
  }
  if (event.char == ' ') {
    return _handleSpace(event);
  }
  return false;
}