Files
element-call/src/useMergedRefs.ts
Robin Townsend 1207ecc9d7 Decouple video grid from video tile components
This is an attempt to address the feedback in https://github.com/vector-im/element-call/pull/1099#discussion_r1226863404 that the video grid and video tile components have become too tightly coupled. After this change, the only requirements that the video grid makes of its child components are:

- They accept ref, style, and item props
- They attach the ref and styles to a react-spring animated element

Note: I removed the video grid Storybook file, because I'm not aware of anyone using Storybook for development of Element Call beyond Robert, and it would take some effort to fix to work with these changes.
2023-06-12 18:21:45 -04:00

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TypeScript

/*
Copyright 2023 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import { MutableRefObject, RefCallback, useCallback } from "react";
/**
* Combines multiple refs into one, useful for attaching multiple refs to the
* same DOM node.
*/
export const useMergedRefs = <T>(
...refs: (MutableRefObject<T | null> | RefCallback<T | null> | null)[]
): RefCallback<T | null> =>
useCallback(
(value) =>
refs.forEach((ref) => {
if (typeof ref === "function") {
ref(value);
} else if (ref !== null) {
ref.current = value;
}
}),
// Since this isn't an array literal, we can't use the static dependency
// checker, but that's okay
// eslint-disable-next-line react-hooks/exhaustive-deps
refs
);