sambruk/excalidraw
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Optimize undo history (#1632)

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Co-authored-by: dwelle <luzar.david@gmail.com>
This commit is contained in:
Pete Hunt
2020-05-23 12:07:11 -07:00
committed by GitHub
parent 51608c07b0
commit 6512ede9ca
2 changed files with 89 additions and 34 deletions
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8
src/element/newElement.ts
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@ -114,7 +114,7 @@ export const newLinearElement = (
// (doesn't clone Date, RegExp, Map, Set, Typed arrays etc.)
//
// Adapted from https://github.com/lukeed/klona
const _duplicateElement = (val: any, depth: number = 0) => {
export const deepCopyElement = (val: any, depth: number = 0) => {
if (val == null || typeof val !== "object") {
return val;
}
@ -130,7 +130,7 @@ const _duplicateElement = (val: any, depth: number = 0) => {
if (depth === 0 && (key === "shape" || key === "canvas")) {
continue;
}
tmp[key] = _duplicateElement(val[key], depth + 1);
tmp[key] = deepCopyElement(val[key], depth + 1);
}
}
return tmp;
@ -140,7 +140,7 @@ const _duplicateElement = (val: any, depth: number = 0) => {
let k = val.length;
const arr = new Array(k);
while (k--) {
arr[k] = _duplicateElement(val[k], depth + 1);
arr[k] = deepCopyElement(val[k], depth + 1);
}
return arr;
}
@ -152,7 +152,7 @@ export const duplicateElement = <TElement extends Mutable<ExcalidrawElement>>(
element: TElement,
overrides?: Partial<TElement>,
): TElement => {
let copy: TElement = _duplicateElement(element);
let copy: TElement = deepCopyElement(element);
copy.id = randomId();
copy.seed = randomInteger();
if (overrides) {