build method

Implementation

@override
Widget build(BuildContext context) {
  final theme = ThemeScope.of(context);
  final bg = background ?? theme.surface;

  final tStyle = _copyStyle(titleStyle ?? theme.titleSmall)
    ..foreground(theme.onSurface)
    ..bold();
  final uStyle = _copyStyle(undoStyle ?? theme.bodySmall)
    ..foreground(theme.onSurface);
  final rStyle = _copyStyle(redoStyle ?? theme.bodySmall)
    ..foreground(theme.muted)
    ..dim();
  final mStyle = _copyStyle(markerStyle ?? theme.bodySmall)
    ..foreground(theme.muted)
    ..bold();

  final children = <Widget>[];

  // Title
  if (title.isNotEmpty) {
    children.add(Text(title, style: tStyle));
    children.add(Text(''));
  }

  // Determine visible items
  final (undoVisible, redoVisible) = _computeVisible();

  // Overflow indicator for hidden undo items
  if (mode == HistoryPanelMode.compact &&
      undoVisible.length < undoItems.length) {
    final hidden = undoItems.length - undoVisible.length;
    children.add(Text('... ($hidden more)', style: rStyle));
  }

  // Undo items
  for (final entry in undoVisible) {
    children.add(Text('$undoIcon${entry.description}', style: uStyle));
  }

  // Position marker
  children.add(Text(markerText, style: mStyle));

  // Redo items
  for (final entry in redoVisible) {
    children.add(Text('$redoIcon${entry.description}', style: rStyle));
  }

  // Overflow indicator for hidden redo items
  if (mode == HistoryPanelMode.compact &&
      redoVisible.length < redoItems.length) {
    final hidden = redoItems.length - redoVisible.length;
    children.add(Text('... ($hidden more)', style: rStyle));
  }

  return Container(
    padding: padding ?? const EdgeInsets.all(1),
    color: bg,
    child: Column(gap: 0, children: children),
  );
}