buildToolbar method

@override Widget buildToolbar(BuildContext context, Rect globalEditableRegion, double textLineHeight, Offset? selectionMidpoint, List<TextSelectionPoint> endpoints, TextSelectionDelegate delegate, ClipboardStatusNotifier clipboardStatus, Offset? lastSecondaryTapDownPosition,)

Builder for material-style copy/paste text selection toolbar.

Implementation

@override
Widget buildToolbar(
  BuildContext context,
  Rect globalEditableRegion,
  double textLineHeight,
  Offset? selectionMidpoint,
  List<TextSelectionPoint> endpoints,
  TextSelectionDelegate delegate,
  ClipboardStatusNotifier clipboardStatus,
  Offset? lastSecondaryTapDownPosition,
) {
  final TextSelectionPoint startTextSelectionPoint = endpoints[0];

  final TextSelectionPoint endTextSelectionPoint =
      endpoints.length > 1 ? endpoints[1] : endpoints[0];

  final Offset anchorAbove = Offset(
      globalEditableRegion.left + (selectionMidpoint ?? Offset.zero).dx,
      globalEditableRegion.top +
          startTextSelectionPoint.point.dy -
          textLineHeight -
          _kToolbarContentDistance);
  final Offset anchorBelow = Offset(
    globalEditableRegion.left + (selectionMidpoint ?? Offset.zero).dx,
    globalEditableRegion.top + endTextSelectionPoint.point.dy + _kToolbarContentDistanceBelow,
  );

  return _SelectionToolBar(
      anchorAbove: anchorAbove,
      anchorBelow: anchorBelow,
      clipboardStatus: clipboardStatus,
      toolBarItems: toolBarItems,
      horizontalPadding: horizontalPadding,
      verticalPadding: verticalPadding,
      canCopy: canCopy(delegate),
      canCut: canCut(delegate),
      canPaste: canPaste(delegate),
      canSelectAll: canSelectAll(delegate),
      onItemSelected: (ToolBarItem item) =>
          _onItemSelected(item: item, delegate: delegate, clipboardStatus: clipboardStatus));
}