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perf: Improve performance of Placeholder extension

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This commit is contained in:
Tom Moor
2023-10-16 19:28:41 -04:00
parent 0b7253bb0c
commit a357cbaf8d
1 changed files with 13 additions and 14 deletions
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27
shared/editor/extensions/Placeholder.ts
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@@ -22,24 +22,23 @@ export default class Placeholder extends Extension {
const { doc } = state;
const decorations: Decoration[] = [];
const completelyEmpty =
doc.textContent === "" &&
doc.childCount <= 1 &&
doc.content.size <= 2;
doc.content.size <= 2 &&
doc.textContent === "";
doc.descendants((node, pos) => {
if (!completelyEmpty) {
return;
}
if (pos !== 0 || node.type.name !== "paragraph") {
return;
}
if (completelyEmpty) {
doc.descendants((node, pos) => {
if (pos !== 0 || node.type.name !== "paragraph") {
return;
}
const decoration = Decoration.node(pos, pos + node.nodeSize, {
class: this.options.emptyNodeClass,
"data-empty-text": this.options.placeholder,
const decoration = Decoration.node(pos, pos + node.nodeSize, {
class: this.options.emptyNodeClass,
"data-empty-text": this.options.placeholder,
});
decorations.push(decoration);
});
decorations.push(decoration);
});
}
return DecorationSet.create(doc, decorations);
},