| 1 | /** |
| 2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
| 3 | * |
| 4 | * This source code is licensed under the MIT license found in the |
| 5 | * LICENSE file in the root directory of this source tree. |
| 6 | * |
| 7 | * @flow |
| 8 | */ |
| 9 | |
| 10 | import * as React from 'react'; |
| 11 | import {useCallback, useContext, useMemo} from 'react'; |
| 12 | import Button from '../Button'; |
| 13 | import ButtonIcon from '../ButtonIcon'; |
| 14 | import {BridgeContext, StoreContext} from '../context'; |
| 15 | import {useSubscription} from '../hooks'; |
| 16 | |
| 17 | type SubscriptionData = { |
| 18 | recordChangeDescriptions: boolean, |
| 19 | supportsReloadAndProfile: boolean, |
| 20 | }; |
| 21 | |
| 22 | export default function ReloadAndProfileButton({ |
| 23 | disabled, |
| 24 | }: { |
| 25 | disabled: boolean, |
| 26 | }): React.Node { |
| 27 | const bridge = useContext(BridgeContext); |
| 28 | const store = useContext(StoreContext); |
| 29 | |
| 30 | const subscription = useMemo( |
| 31 | () => ({ |
| 32 | getCurrentValue: () => ({ |
| 33 | recordChangeDescriptions: store.recordChangeDescriptions, |
| 34 | supportsReloadAndProfile: store.supportsReloadAndProfile, |
| 35 | }), |
| 36 | subscribe: (callback: Function) => { |
| 37 | store.addListener('recordChangeDescriptions', callback); |
| 38 | store.addListener('supportsReloadAndProfile', callback); |
| 39 | return () => { |
| 40 | store.removeListener('recordChangeDescriptions', callback); |
| 41 | store.removeListener('supportsReloadAndProfile', callback); |
| 42 | }; |
| 43 | }, |
| 44 | }), |
| 45 | [store], |
| 46 | ); |
| 47 | const {recordChangeDescriptions, supportsReloadAndProfile} = |
| 48 | useSubscription<SubscriptionData>(subscription); |
| 49 | |
| 50 | const reloadAndProfile = useCallback(() => { |
| 51 | // TODO If we want to support reload-and-profile for e.g. React Native, |
| 52 | // we might need to also start profiling here before reloading the app (since DevTools itself isn't reloaded). |
| 53 | // We'd probably want to do this before reloading though, to avoid sending a message on a disconnected port in the browser. |
| 54 | // For now, let's just skip doing it entirely to avoid paying snapshot costs for data we don't need. |
| 55 | // startProfiling(); |
| 56 | |
| 57 | bridge.send('reloadAndProfile', { |
| 58 | recordChangeDescriptions, |
| 59 | }); |
| 60 | }, [bridge, recordChangeDescriptions]); |
| 61 | |
| 62 | if (!supportsReloadAndProfile) { |
| 63 | return null; |
| 64 | } |
| 65 | |
| 66 | return ( |
| 67 | <Button |
| 68 | disabled={disabled} |
| 69 | onClick={reloadAndProfile} |
| 70 | title="Reload and start profiling"> |
| 71 | <ButtonIcon type="reload" /> |
| 72 | </Button> |
| 73 | ); |
| 74 | } |