formatSignToHeading top-level property

CharacterShortcutEvent formatSignToHeading

Convert '# ' to bulleted list

• support
  • desktop
  • mobile
  • web

Implementation

CharacterShortcutEvent formatSignToHeading = CharacterShortcutEvent(
  key: 'format sign to heading list',
  character: ' ',
  handler: (editorState) async => await formatMarkdownSymbol(
    editorState,
    (node) => true,
    (_, text, selection) {
      final characters = text.split('');
      // only supports heading1 to heading6 levels
      // if the characters is empty, the every function will return true directly
      return characters.isNotEmpty &&
          characters.every((element) => element == '#') &&
          characters.length < 7;
    },
    (text, node, delta) {
      final numberOfSign = text.split('').length;
      return [
        headingNode(
          level: numberOfSign,
          delta: delta.compose(Delta()..delete(numberOfSign)),
        ),
        if (node.children.isNotEmpty) ...node.children,
      ];
    },
  ),
);