build method

@override InlineSpan build(ExtensionContext context)

The final step in the chain. Converts the StyledElement tree, with its attached Style elements, into an InlineSpan tree that includes Widget/TextSpans that can be rendered in a RichText widget.

Implementation

@override
InlineSpan build(ExtensionContext context) {
  if (context.styledElement is LinebreakContentElement) {
    return TextSpan(
      text: '\n',
      style: context.styledElement!.style.generateTextStyle(),
    );
  }

  final element = context.styledElement! as TextContentElement;
  return TextSpan(
    style: element.style.generateTextStyle(),
    text: element.text!.transformed(element.style.textTransform),
  );
}