selectWordsBetweenPoints method

bool selectWordsBetweenPoints(Offset startPt, Offset endPt, { int? key, })

Attempts to select the words between startPt and endPt, returning true if successful.

Implementation

bool selectWordsBetweenPoints(Offset startPt, Offset endPt, {int? key}) {
  final k = key ?? 0;
  if (k < 0) return false;

  // First, clear and unhide the selection, or create it if it doesn't exist.
  var selection = _selections[k]?.cleared().copyWith(isHidden: false) ??
      Selection(rectifier: _rectifiers[k] ?? SelectionRectifiers.identity);

  // Next, attempt to select the word under the first point.
  selection = selection.updatedWith(
    _selections.cachedParagraphs,
    SelectionDragInfo(selectionPt: startPt),
  );

  // Finally, if that worked, and endPt != startPt, attempt to extend the
  // selection to include the end point.
  if (selection.isTextSelected && endPt != startPt) {
    selection = selection.updatedWith(
      _selections.cachedParagraphs,
      SelectionDragInfo(
        selectionPt: endPt,
        handleType: SelectionHandleType.right,
      ),
    );
  }

  if (selection.isTextSelected) {
    _selections[k] = selection;
    notifyListeners();
    return true;
  } else if (startPt == endPt) {
    // dmPrint('WARNING: Selectable selectWordAtPoint($startPt) failed.');
  } else {
    // dmPrint('WARNING: Selectable '
    //     'selectWordsBetweenPoints($startPt, $endPt) failed.');
  }

  return false;
}