paragraphToOp method

@override List<Operation> paragraphToOp(Element element)

Converts a paragraph HTML element (<p>) to Delta operations.

Implementation

@override
List<Operation> paragraphToOp(dom.Element element) {
  final Delta delta = Delta();
  final attributes = element.attributes;
  Map<String, dynamic> inlineAttributes = {};
  Map<String, dynamic> blockAttributes = {};
  // Process the style attribute
  if (attributes.containsKey('style') ||
      attributes.containsKey('align') ||
      attributes.containsKey('dir')) {
    final String style = attributes['style'] ?? '';
    final String? styles2 = attributes['align'];
    final String? styles3 = attributes['dir'];
    final styleAttributes = parseStyleAttribute(style);
    final alignAttribute = parseStyleAttribute(styles2 ?? '');
    final dirAttribute = parseStyleAttribute(styles3 ?? '');
    styleAttributes.addAll({...alignAttribute, ...dirAttribute});
    if (styleAttributes.containsKey('align') ||
        styleAttributes.containsKey('direction') ||
        styleAttributes.containsKey('indent')) {
      blockAttributes['align'] = styleAttributes['align'];
      blockAttributes['direction'] = styleAttributes['direction'];
      blockAttributes['indent'] = styleAttributes['indent'];
      styleAttributes.remove('align');
      styleAttributes.remove('direction');
      styleAttributes.remove('indent');
    }
    inlineAttributes.addAll(styleAttributes);
  }
  final nodes = element.nodes;
  //this store into all nodes into a paragraph, and
  //ensure getting all attributes or tags into a paragraph
  for (final node in nodes) {
    processNode(node, inlineAttributes, delta,
        addSpanAttrs: true, customBlocks: customBlocks);
  }
  if (blockAttributes.isNotEmpty) {
    blockAttributes.removeWhere((key, value) => value == null);
    delta.insert('\n', blockAttributes);
  }

  return delta.toList();
}