@atlaskit/editor-plugin-block-controls/dist/es2019/pm-plugins/utils/sparse-surfaces-mapping.js

Block controls plugin for @atlaskit/editor-core

import { mapSparseSurfaceCandidates } from './sparse-surface-candidates';
const mergeInvalidation = ({
  current,
  incoming,
  tr
}) => {
  var _current$ids, _incoming$ids, _current$positions, _incoming$positions, _current$ranges, _incoming$ranges;
  if (!current && !incoming) {
    return undefined;
  }
  if (!incoming && !tr.docChanged) {
    return current;
  }
  const ids = [...((_current$ids = current === null || current === void 0 ? void 0 : current.ids) !== null && _current$ids !== void 0 ? _current$ids : []), ...((_incoming$ids = incoming === null || incoming === void 0 ? void 0 : incoming.ids) !== null && _incoming$ids !== void 0 ? _incoming$ids : [])];
  const positions = [...((_current$positions = current === null || current === void 0 ? void 0 : current.positions) !== null && _current$positions !== void 0 ? _current$positions : []).map(position => tr.mapping.map(position, 1)), ...((_incoming$positions = incoming === null || incoming === void 0 ? void 0 : incoming.positions) !== null && _incoming$positions !== void 0 ? _incoming$positions : [])];
  const ranges = [...((_current$ranges = current === null || current === void 0 ? void 0 : current.ranges) !== null && _current$ranges !== void 0 ? _current$ranges : []).map(({
    from,
    to
  }) => ({
    from: tr.mapping.map(from, -1),
    to: tr.mapping.map(to, 1)
  })), ...((_incoming$ranges = incoming === null || incoming === void 0 ? void 0 : incoming.ranges) !== null && _incoming$ranges !== void 0 ? _incoming$ranges : [])];
  return ids.length || positions.length || ranges.length ? {
    ids,
    positions,
    ranges
  } : undefined;
};
const mapAnchors = (anchors, tr) => {
  if (!tr.docChanged || anchors.size === 0) {
    return anchors;
  }
  let changed = false;
  const mappedAnchors = new Map();
  for (const [position, name] of anchors) {
    const mapped = tr.mapping.mapResult(position, 1);
    if (!mapped.deleted) {
      mappedAnchors.set(mapped.pos, name);
      changed ||= mapped.pos !== position;
    } else {
      changed = true;
    }
  }
  return changed ? mappedAnchors : anchors;
};
export const reducePendingState = ({
  invalidation,
  previous,
  tr
}) => ({
  invalidation: mergeInvalidation({
    current: previous.invalidation,
    incoming: invalidation,
    tr
  })
});
export const isUnchangedTransaction = ({
  pending,
  previous,
  tr
}) => !tr.docChanged && pending.invalidation === previous.invalidation;
export const mapTransactionState = ({
  newState,
  pending,
  previous,
  tr
}) => ({
  ...previous,
  anchors: mapAnchors(previous.anchors, tr),
  candidates: tr.docChanged ? mapSparseSurfaceCandidates({
    newState,
    previousState: previous.candidates,
    tr
  }) : previous.candidates,
  decorations: tr.docChanged ? previous.decorations.map(tr.mapping, tr.doc) : previous.decorations,
  documentChanged: previous.documentChanged || tr.docChanged,
  invalidation: pending.invalidation
});