didReceiveSelectionBoundaryEvents method

  1. @protected
void didReceiveSelectionBoundaryEvents()

Updates the internal selection state after a SelectionEvent that selects a boundary such as: SelectWordSelectionEvent, SelectParagraphSelectionEvent, and SelectAllSelectionEvent.

Call this method after determining the new selection as a result of a SelectionEvent that selects a boundary. The currentSelectionStartIndex and currentSelectionEndIndex should be set to valid values at the time this method is called.

Subclasses should call clearInternalSelectionStateForSelectable to clean up any state added by this method, for example when removing a Selectable from this delegate.

Implementation

@protected
void didReceiveSelectionBoundaryEvents() {
  if (currentSelectionStartIndex == -1 || currentSelectionEndIndex == -1) {
    return;
  }
  final int start = min(currentSelectionStartIndex, currentSelectionEndIndex);
  final int end = max(currentSelectionStartIndex, currentSelectionEndIndex);
  for (int index = start; index <= end; index += 1) {
    didReceiveSelectionEventFor(selectable: selectables[index]);
  }
  _updateLastSelectionEdgeLocationsFromGeometries();
}