@atlaskit/editor-plugin-code-block-advanced/dist/es2019/nodeviews/extensions/keymap/maybeEscape.js

CodeBlockAdvanced plugin for @atlaskit/editor-core

import { RelativeSelectionPos } from '@atlaskit/editor-common/selection';
import { Selection } from '@atlaskit/editor-prosemirror/state';
export const maybeEscapeKeymap = ({
  unit,
  dir,
  view,
  cm,
  getPos,
  getNode,
  onMaybeNodeSelection,
  selectCodeBlockNode
}) => {
  var _getPos;
  if (unit === 'char') {
    onMaybeNodeSelection();
  }
  const node = getNode();
  const {
    state
  } = cm;
  let main = state.selection.main;
  if (!main.empty) {
    return false;
  }
  if (unit === 'line') {
    main = {
      ...state.doc.lineAt(main.head),
      head: 0,
      empty: false
    };
  }
  if (dir < 0 ? main.from > 0 : main.to < state.doc.length) {
    return false;
  }
  const targetPos = ((_getPos = getPos === null || getPos === void 0 ? void 0 : getPos()) !== null && _getPos !== void 0 ? _getPos : 0) + (dir < 0 ? 0 : node.nodeSize);
  if (unit === 'char') {
    view.focus();
    selectCodeBlockNode(dir === -1 ? RelativeSelectionPos.Start : RelativeSelectionPos.End);
    return true;
  } else {
    createParagraphIfEndOfDoc(view, targetPos);
    const tr = view.state.tr;
    const selection = Selection.near(tr.doc.resolve(targetPos), dir);
    tr.setSelection(selection).scrollIntoView();
    view.dispatch(tr);
    view.focus();
    return true;
  }
};
const createParagraphIfEndOfDoc = (view, targetPos) => {
  if (targetPos === view.state.doc.content.size) {
    const paragraph = view.state.schema.nodes.paragraph.createChecked({});
    const tr = view.state.tr.insert(targetPos, paragraph);
    // Note: we purposefully do a multi-dispatch here, otherwise we get stuck in codemirror
    view.dispatch(tr);
  }
};