@wordpress/editor
Version:
Enhanced block editor for WordPress posts.
41 lines (40 loc) • 1.2 kB
JavaScript
// packages/editor/src/components/post-revisions-preview/preserve-client-ids.js
import { diffArrays } from "diff/lib/diff/array";
function preserveClientIds(newBlocks, prevBlocks) {
if (!prevBlocks?.length || !newBlocks?.length) {
return newBlocks;
}
const newSigs = newBlocks.map((block) => block.name);
const prevSigs = prevBlocks.map((block) => block.name);
const diffResult = diffArrays(prevSigs, newSigs);
let newIndex = 0;
let prevIndex = 0;
const result = [];
for (const chunk of diffResult) {
if (chunk.removed) {
prevIndex += chunk.count;
} else if (chunk.added) {
for (let i = 0; i < chunk.count; i++) {
result.push(newBlocks[newIndex++]);
}
} else {
for (let i = 0; i < chunk.count; i++) {
const newBlock = newBlocks[newIndex++];
const prevBlock = prevBlocks[prevIndex++];
result.push({
...newBlock,
clientId: prevBlock.clientId,
innerBlocks: preserveClientIds(
newBlock.innerBlocks,
prevBlock.innerBlocks
)
});
}
}
}
return result;
}
export {
preserveClientIds
};
//# sourceMappingURL=preserve-client-ids.mjs.map