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feat: follow mode (#6848)

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Co-authored-by: dwelle <5153846+dwelle@users.noreply.github.com>
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Barnabás Molnár 2023-12-15 00:07:11 +01:00 • committed by GitHub
parent 88a2b286c7
commit aad8ab0123
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28 changed files with 1039 additions and 138 deletions
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37
packages/excalidraw/utils.ts
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@ -771,11 +771,21 @@ export const queryFocusableElements = (container: HTMLElement | null) => {
export const isShallowEqual = <
T extends Record<string, any>,
I extends keyof T,
K extends readonly unknown[],
>(
objA: T,
objB: T,
comparators?: Record<I, (a: T[I], b: T[I]) => boolean>,
comparators?:
| { [key in keyof T]?: (a: T[key], b: T[key]) => boolean }
| (keyof T extends K[number]
? K extends readonly (keyof T)[]
? K
: {
_error: "keys are either missing or include keys not in compared obj";
}
: {
_error: "keys are either missing or include keys not in compared obj";
}),
debug = false,
) => {
const aKeys = Object.keys(objA);
@ -783,8 +793,29 @@ export const isShallowEqual = <
if (aKeys.length !== bKeys.length) {
return false;
}
if (comparators && Array.isArray(comparators)) {
for (const key of comparators) {
const ret = objA[key] === objB[key];
if (!ret) {
if (debug) {
console.info(
`%cisShallowEqual: ${key} not equal ->`,
"color: #8B4000",
objA[key],
objB[key],
);
}
return false;
}
}
return true;
}
return aKeys.every((key) => {
const comparator = comparators?.[key as I];
const comparator = (
comparators as { [key in keyof T]?: (a: T[key], b: T[key]) => boolean }
)?.[key as keyof T];
const ret = comparator
? comparator(objA[key], objB[key])
: objA[key] === objB[key];