of static method

TabThemeData of(BuildContext context)

Returns the nearest TabTheme.

Implementation

static TabThemeData of(BuildContext context) {
  final TabTheme? tabTheme =
      context.dependOnInheritedWidgetOfExactType<TabTheme>();
  TabThemeData? tabThemeData = tabTheme?.data;

  if (tabThemeData == null || !tabThemeData._isConcrete) {
    final ThemeData themeData = Theme.of(context);
    final TextTheme textTheme = themeData.textTheme;
    final ColorScheme colorScheme = themeData.colorScheme;

    tabThemeData ??= themeData.tabTheme;

    final tabValue =
        _TabThemeData(textTheme: textTheme, colorScheme: colorScheme);

    final EdgeInsets padding = tabThemeData.padding ?? tabValue.padding;
    final double height = tabThemeData.height ?? tabValue.height;
    final double width = tabThemeData.width ?? tabValue.width;
    final Color tabBarBackgroundColor =
        tabThemeData.tabBarBackgroundColor ?? tabValue.tabBarBackgroundColor;
    final TextStyle textStyle = tabThemeData.textStyle ?? tabValue.textStyle;
    final IconThemeData iconThemeData =
        tabThemeData.iconThemeData ?? tabValue.iconThemeData;
    final double itemSpacing =
        tabThemeData.itemSpacing ?? tabValue.itemSpacing;
    final EdgeInsets itemPadding =
        tabThemeData.itemPadding ?? tabValue.itemPadding;
    final Color itemColor = tabThemeData.itemColor ?? tabValue.itemColor;
    final Color itemHoverColor =
        tabThemeData.itemHoverColor ?? tabValue.itemHoverColor;
    final Color itemHighlightColor =
        tabThemeData.itemHighlightColor ?? tabValue.itemHighlightColor;
    final bool itemFilled = tabThemeData.itemFilled ?? tabValue.itemFilled;
    final Color itemBackgroundColor =
        tabThemeData.itemBackgroundColor ?? tabValue.itemBackgroundColor;
    final Color itemHoverBackgroundColor =
        tabThemeData.itemHoverBackgroundColor ??
            tabValue.itemHoverBackgroundColor;
    final Color itemHighlightBackgroundColor =
        tabThemeData.itemHighlightBackgroundColor ??
            tabValue.itemHighlightBackgroundColor;
    final Duration menuTransitionDuration =
        tabThemeData.menuTransitionDuration ??
            tabValue.menuTransitionDuration;
    final Curve menuTrasitionCurve =
        tabThemeData.menuTrasitionCurve ?? tabValue.menuTrasitionCurve;
    final Curve menuTrasitionReverseCurve =
        tabThemeData.menuTrasitionReverseCurve ??
            tabValue.menuTrasitionReverseCurve;

    return tabThemeData.copyWith(
      padding: padding,
      height: height,
      width: width,
      tabBarBackgroundColor: tabBarBackgroundColor,
      textStyle: textStyle,
      iconThemeData: iconThemeData,
      itemSpacing: itemSpacing,
      itemPadding: itemPadding,
      itemColor: itemColor,
      itemHoverColor: itemHoverColor,
      itemHighlightColor: itemHighlightColor,
      itemFilled: itemFilled,
      itemBackgroundColor: itemBackgroundColor,
      itemHoverBackgroundColor: itemHoverBackgroundColor,
      itemHighlightBackgroundColor: itemHighlightBackgroundColor,
      menuTransitionDuration: menuTransitionDuration,
      menuTrasitionCurve: menuTrasitionCurve,
      menuTrasitionReverseCurve: menuTrasitionReverseCurve,
    );
  }

  assert(tabThemeData._isConcrete);

  return tabThemeData;
}