setTocList method
Updates the TOC list with new items.
This method is called when the markdown content is parsed and headings are extracted. It replaces the existing TOC items.
Implementation
void setTocList(List<TocItem> list) {
if (_isDisposed) return;
_widgetIndex2TocItem.clear();
for (final item in list) {
_widgetIndex2TocItem[item.widgetIndex] = item;
}
_notifyListChanged(List.unmodifiable(list));
}