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refactor(theme-common): rename useDynamicCallback to useEvent (#7671)
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slorber authored Jun 24, 2022
1 parent 9473508 commit 2c7012f
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Showing 7 changed files with 15 additions and 15 deletions.
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Expand Up @@ -5,7 +5,7 @@
* LICENSE file in the root directory of this source tree.
*/
import {useEffect} from 'react';
import {useDynamicCallback, useShallowMemoObject} from '../utils/reactUtils';
import {useEvent, useShallowMemoObject} from '../utils/reactUtils';

type Options = MutationObserverInit;

Expand All @@ -21,7 +21,7 @@ export function useMutationObserver(
callback: MutationCallback,
options: Options = DefaultOptions,
): void {
const stableCallback = useDynamicCallback(callback);
const stableCallback = useEvent(callback);

// MutationObserver options are not nested much
// so this should be to memo options in 99%
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2 changes: 1 addition & 1 deletion packages/docusaurus-theme-common/src/index.ts
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Expand Up @@ -38,7 +38,7 @@ export {ThemeClassNames} from './utils/ThemeClassNames';

export {
useIsomorphicLayoutEffect,
useDynamicCallback, // TODO rename to useEvent()
useEvent,
usePrevious,
ReactContextError,
} from './utils/reactUtils';
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4 changes: 2 additions & 2 deletions packages/docusaurus-theme-common/src/utils/historyUtils.ts
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Expand Up @@ -7,7 +7,7 @@

import {useEffect} from 'react';
import {useHistory} from '@docusaurus/router';
import {useDynamicCallback} from './reactUtils';
import {useEvent} from './reactUtils';
import type {Location, Action} from 'history';

type HistoryBlockHandler = (location: Location, action: Action) => void | false;
Expand All @@ -19,7 +19,7 @@ type HistoryBlockHandler = (location: Location, action: Action) => void | false;
*/
function useHistoryActionHandler(handler: HistoryBlockHandler): void {
const history = useHistory();
const stableHandler = useDynamicCallback(handler);
const stableHandler = useEvent(handler);
useEffect(
// See https://github.com/remix-run/history/blob/main/docs/blocking-transitions.md
() => history.block((location, action) => stableHandler(location, action)),
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8 changes: 4 additions & 4 deletions packages/docusaurus-theme-common/src/utils/reactUtils.tsx
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Expand Up @@ -21,18 +21,18 @@ export const useIsomorphicLayoutEffect = ExecutionEnvironment.canUseDOM
: useEffect;

/**
* Temporary userland implementation until an official hook is implemented
* See RFC: https://github.com/reactjs/rfcs/pull/220
*
* Permits to transform an unstable callback (like an arrow function provided as
* props) to a "stable" callback that is safe to use in a `useEffect` dependency
* array. Useful to avoid React stale closure problems + avoid useless effect
* re-executions.
*
* Workaround until the React team recommends a good solution, see
* https://github.com/facebook/react/issues/16956
*
* This generally works but has some potential drawbacks, such as
* https://github.com/facebook/react/issues/16956#issuecomment-536636418
*/
export function useDynamicCallback<T extends (...args: never[]) => unknown>(
export function useEvent<T extends (...args: never[]) => unknown>(
callback: T,
): T {
const ref = useRef<T>(callback);
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4 changes: 2 additions & 2 deletions packages/docusaurus-theme-common/src/utils/scrollUtils.tsx
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Expand Up @@ -16,7 +16,7 @@ import React, {
} from 'react';
import ExecutionEnvironment from '@docusaurus/ExecutionEnvironment';
import useIsBrowser from '@docusaurus/useIsBrowser';
import {useDynamicCallback, ReactContextError} from './reactUtils';
import {useEvent, ReactContextError} from './reactUtils';

type ScrollController = {
/** A boolean ref tracking whether scroll events are enabled. */
Expand Down Expand Up @@ -104,7 +104,7 @@ export function useScrollPosition(
const {scrollEventsEnabledRef} = useScrollController();
const lastPositionRef = useRef<ScrollPosition | null>(getScrollPosition());

const dynamicEffect = useDynamicCallback(effect);
const dynamicEffect = useEvent(effect);

useEffect(() => {
const handleScroll = () => {
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Expand Up @@ -7,7 +7,7 @@

import {useEffect} from 'react';
import {useLocation} from '@docusaurus/router';
import {useDynamicCallback, usePrevious} from './reactUtils';
import {useEvent, usePrevious} from './reactUtils';
import type {Location} from 'history';

/**
Expand All @@ -24,7 +24,7 @@ export function useLocationChange(
const location = useLocation();
const previousLocation = usePrevious(location);

const onLocationChangeDynamic = useDynamicCallback(onLocationChange);
const onLocationChangeDynamic = useEvent(onLocationChange);

useEffect(() => {
if (!previousLocation) {
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Expand Up @@ -20,7 +20,7 @@ import {
HtmlClassNameProvider,
usePluralForm,
isRegexpStringMatch,
useDynamicCallback,
useEvent,
} from '@docusaurus/theme-common';
import {
useTitleFormatter,
Expand Down Expand Up @@ -316,7 +316,7 @@ function SearchPageContent(): JSX.Element {
description: 'The search page title for empty query',
});

const makeSearch = useDynamicCallback((page: number = 0) => {
const makeSearch = useEvent((page: number = 0) => {
algoliaHelper.addDisjunctiveFacetRefinement('docusaurus_tag', 'default');
algoliaHelper.addDisjunctiveFacetRefinement('language', currentLocale);

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