void visitElementAfter()

in packages/flutter_markdown/lib/src/builder.dart [356:502]
138 lines of code
31 McCabe index (conditional complexity)

  void visitElementAfter(md.Element element) {
    final String tag = element.tag;

    if (_isBlockTag(tag)) {
      _addAnonymousBlockIfNeeded();

      final _BlockElement current = _blocks.removeLast();
      Widget child;

      if (current.children.isNotEmpty) {
        child = Column(
          crossAxisAlignment: fitContent
              ? CrossAxisAlignment.start
              : CrossAxisAlignment.stretch,
          children: current.children,
        );
      } else {
        child = const SizedBox();
      }

      if (_isListTag(tag)) {
        assert(_listIndents.isNotEmpty);
        _listIndents.removeLast();
      } else if (tag == 'li') {
        if (_listIndents.isNotEmpty) {
          if (element.children!.isEmpty) {
            element.children!.add(md.Text(''));
          }
          Widget bullet;
          final dynamic el = element.children![0];
          if (el is md.Element && el.attributes['type'] == 'checkbox') {
            final bool val = el.attributes['checked'] != 'false';
            bullet = _buildCheckbox(val);
          } else {
            bullet = _buildBullet(_listIndents.last);
          }
          child = Row(
            textBaseline: listItemCrossAxisAlignment ==
                    MarkdownListItemCrossAxisAlignment.start
                ? null
                : TextBaseline.alphabetic,
            crossAxisAlignment: listItemCrossAxisAlignment ==
                    MarkdownListItemCrossAxisAlignment.start
                ? CrossAxisAlignment.start
                : CrossAxisAlignment.baseline,
            children: <Widget>[
              SizedBox(
                width: styleSheet.listIndent! +
                    styleSheet.listBulletPadding!.left +
                    styleSheet.listBulletPadding!.right,
                child: bullet,
              ),
              Expanded(child: child)
            ],
          );
        }
      } else if (tag == 'table') {
        child = Table(
          defaultColumnWidth: styleSheet.tableColumnWidth!,
          defaultVerticalAlignment: TableCellVerticalAlignment.middle,
          border: styleSheet.tableBorder,
          children: _tables.removeLast().rows,
        );
      } else if (tag == 'blockquote') {
        _isInBlockquote = false;
        child = DecoratedBox(
          decoration: styleSheet.blockquoteDecoration!,
          child: Padding(
            padding: styleSheet.blockquotePadding!,
            child: child,
          ),
        );
      } else if (tag == 'pre') {
        child = DecoratedBox(
          decoration: styleSheet.codeblockDecoration!,
          child: child,
        );
      } else if (tag == 'hr') {
        child = Container(decoration: styleSheet.horizontalRuleDecoration);
      }

      _addBlockChild(child);
    } else {
      final _InlineElement current = _inlines.removeLast();
      final _InlineElement parent = _inlines.last;
      EdgeInsets padding = EdgeInsets.zero;

      if (paddingBuilders.containsKey(tag)) {
        padding = paddingBuilders[tag]!.getPadding();
      }

      if (builders.containsKey(tag)) {
        final Widget? child =
            builders[tag]!.visitElementAfter(element, styleSheet.styles[tag]);
        if (child != null) {
          current.children[0] = child;
        }
      } else if (tag == 'img') {
        // create an image widget for this image
        current.children.add(_buildPadding(
          padding,
          _buildImage(
            element.attributes['src']!,
            element.attributes['title'],
            element.attributes['alt'],
          ),
        ));
      } else if (tag == 'br') {
        current.children.add(_buildRichText(const TextSpan(text: '\n')));
      } else if (tag == 'th' || tag == 'td') {
        TextAlign? align;
        final String? style = element.attributes['style'];
        if (style == null) {
          align = tag == 'th' ? styleSheet.tableHeadAlign : TextAlign.left;
        } else {
          final RegExp regExp = RegExp(r'text-align: (left|center|right)');
          final Match match = regExp.matchAsPrefix(style)!;
          switch (match[1]) {
            case 'left':
              align = TextAlign.left;
              break;
            case 'center':
              align = TextAlign.center;
              break;
            case 'right':
              align = TextAlign.right;
              break;
          }
        }
        final Widget child = _buildTableCell(
          _mergeInlineChildren(current.children, align),
          textAlign: align,
        );
        _tables.single.rows.last.children!.add(child);
      } else if (tag == 'a') {
        _linkHandlers.removeLast();
      }

      if (current.children.isNotEmpty) {
        parent.children.addAll(current.children);
      }
    }
    if (_currentBlockTag == tag) {
      _currentBlockTag = null;
    }
    _lastVisitedTag = tag;
  }