@atlaskit/editor-plugin-block-controls/dist/es2019/ui/utils/document-checks.js

Block controls plugin for @atlaskit/editor-core

import { NodeSelection, TextSelection } from '@atlaskit/editor-prosemirror/state';
export const isNestedNodeSelected = view => {
  const selection = view.state.selection;
  return selection instanceof NodeSelection && selection.$from.depth > 0;
};
export const isSelectionInNode = (start, view) => {
  const node = view.state.doc.nodeAt(start);
  if (node === null) {
    return false;
  }
  const endPos = start + node.nodeSize;
  const startPos = start;
  const {
    $from,
    $to
  } = view.state.selection;
  return $from.pos >= startPos && endPos >= $to.pos;
};

// checks if the selection is in a text node
export const isInTextSelection = view => {
  const selection = view.state.selection;
  if (selection instanceof TextSelection) {
    return true;
  } else if (selection instanceof NodeSelection) {
    // check if this is a node that can appear among text
    return selection.node.isInline;
  }
};
export const isNonEditableBlock = (start, view) => {
  const node = view.state.doc.nodeAt(start);
  if (node === null) {
    return false;
  }

  // We want to treat some elements as if they are non-editable blocks for
  // the purposes of quick insert.
  switch (node.type.name) {
    // mediaSingle and mediaGroup always contain a media child node, which is
    // both a block and an atom. mediaSingle can also have a caption child node
    // which is an editable block.
    case 'mediaGroup':
    case 'mediaSingle':
      return true;
  }
  return node.isBlock && (node.isAtom || node.isLeaf);
};