absoluteOffset function
Implementation
int absoluteOffset(RenderFluentFragment targetRender, int localOffset, Widget widget) {
int absolute = 0;
for (final child in ((widget as FluentParagraphWidget).node as InlineContainerNode).getChildren()) {
final result = _walkNode(child, targetRender, localOffset, absolute);
if (result.$1) return result.$2; // found
absolute = result.$2;
}
return absolute;
}