| 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 { |
| 11 | getInstanceFromNode, |
| 12 | getFiberCurrentPropsFromNode, |
| 13 | } from '../client/ReactDOMComponentTree'; |
| 14 | |
| 15 | import {restoreControlledState} from 'react-dom-bindings/src/client/ReactDOMComponent'; |
| 16 | |
| 17 | // Use to restore controlled state after a change event has fired. |
| 18 | |
| 19 | let restoreTarget = null; |
| 20 | let restoreQueue = null; |
| 21 | |
| 22 | function restoreStateOfTarget(target: Node) { |
| 23 | // We perform this translation at the end of the event loop so that we |
| 24 | // always receive the correct fiber here |
| 25 | const internalInstance = getInstanceFromNode(target); |
| 26 | if (!internalInstance) { |
| 27 | // Unmounted |
| 28 | return; |
| 29 | } |
| 30 | |
| 31 | const stateNode = internalInstance.stateNode; |
| 32 | // Guard against Fiber being unmounted. |
| 33 | if (stateNode) { |
| 34 | const props = getFiberCurrentPropsFromNode(stateNode); |
| 35 | restoreControlledState( |
| 36 | internalInstance.stateNode, |
| 37 | internalInstance.type, |
| 38 | props, |
| 39 | ); |
| 40 | } |
| 41 | } |
| 42 | |
| 43 | export function enqueueStateRestore(target: Node): void { |
| 44 | if (restoreTarget) { |
| 45 | if (restoreQueue) { |
| 46 | restoreQueue.push(target); |
| 47 | } else { |
| 48 | restoreQueue = [target]; |
| 49 | } |
| 50 | } else { |
| 51 | restoreTarget = target; |
| 52 | } |
| 53 | } |
| 54 | |
| 55 | export function needsStateRestore(): boolean { |
| 56 | return restoreTarget !== null || restoreQueue !== null; |
| 57 | } |
| 58 | |
| 59 | export function restoreStateIfNeeded() { |
| 60 | if (!restoreTarget) { |
| 61 | return; |
| 62 | } |
| 63 | const target = restoreTarget; |
| 64 | const queuedTargets = restoreQueue; |
| 65 | restoreTarget = null; |
| 66 | restoreQueue = null; |
| 67 | |
| 68 | restoreStateOfTarget(target); |
| 69 | if (queuedTargets) { |
| 70 | for (let i = 0; i < queuedTargets.length; i++) { |
| 71 | restoreStateOfTarget(queuedTargets[i]); |
| 72 | } |
| 73 | } |
| 74 | } |