underWidget method

Future<void> underWidget(dynamic selector, Future<void> underHere())

Any operations applied within the underHere callback operate on widgets which are nested under selector.

In addition to passing a standard selector, like a AFWidgetID, you can also pass in a list of selectors. If you do so, then the operation takes place under a sparse-path containing all the items in the list.

Implementation

Future<void> underWidget(dynamic selector, Future<void> Function() underHere) async {
  var path = activeSelectorPath;
  path ??= AFSparsePathWidgetSelector.createEmpty();
  var next = path;
  if(selector is List) {
    for(final sel in selector) {
        next =  AFWidgetSelector.createSelector(next, sel) as AFSparsePathWidgetSelector;
    }
  } else {
    next = AFWidgetSelector.createSelector(next, selector) as AFSparsePathWidgetSelector;
  }
  underPaths.add(next);
  await underHere();
  underPaths.removeLast();
}