className property

String get className

Implementation

String get className => _classList.join(_oneSpace);

set className (String className)

Implementation

@pragma('vm:prefer-inline')
set className(String className) {
  final List<String> classList = className
      .split(classNameSplitRegExp)
      .where((e) => e.isNotEmpty)
      .toList();
  final List<String> oldClasses = List.from(_classList);
  final Iterable<String> checkKeys = (oldClasses + classList)
      .where((key) => !oldClasses.contains(key) || !classList.contains(key));
  final bool isNeedRecalculate = _checkRecalculateStyle(List.from(checkKeys));

  // Update internal class list
  _classList
    ..clear()
    ..addAll(classList);

  // Maintain document indices for classes when connected
  _updateClassIndex(oldClasses, _classList);
  // Maintain attribute presence index for [class] selectors.
  _updateAttrPresenceIndex(_classNameAttr, present: true);
  if (DebugFlags.enableCssBatchRecalc) {
    ownerDocument.markElementStyleDirty(this, reason: 'batch:class');

    return;
  }
  recalculateStyle(rebuildNested: isNeedRecalculate);
}