@atlaskit/editor-plugin-block-menu/dist/es2019/editor-commands/transform-node-utils/steps/flattenStep.js

BlockMenu plugin for @atlaskit/editor-core

export const flattenStep = (nodes, context) => {
  const {
    schema,
    targetNodeTypeName
  } = context;
  const {
    paragraph
  } = schema.nodes;
  const targetNodeType = schema.nodes[targetNodeTypeName];
  if (!targetNodeType || !paragraph) {
    return nodes;
  }
  return nodes.map(node => {
    const isValidWithin = targetNodeType.validContent(node.content);
    if (!isValidWithin) {
      return node;
    }
    return paragraph.create({}, node.content, node.marks);
  });
};