| 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 type {Fiber} from './ReactInternalTypes'; |
| 11 | import type {ViewTransitionProps} from 'shared/ReactTypes'; |
| 12 | import {runWithFiberInDEV} from './ReactCurrentFiber'; |
| 13 | |
| 14 | // Use in DEV to track mounted named ViewTransitions. This is used to warn for |
| 15 | // duplicate names. This should technically be tracked per Document because you could |
| 16 | // have two different documents that can have separate namespaces, but to keep things |
| 17 | // simple we just use a global Map. Technically it should also include any manually |
| 18 | // assigned view-transition-name outside React too. |
| 19 | const mountedNamedViewTransitions: Map<string, Fiber> = __DEV__ |
| 20 | ? new Map() |
| 21 | : (null as any); |
| 22 | const didWarnAboutName: {[string]: boolean} = __DEV__ ? {} : (null as any); |
| 23 | |
| 24 | export function trackNamedViewTransition(fiber: Fiber): void { |
| 25 | if (__DEV__) { |
| 26 | const name = (fiber.memoizedProps as ViewTransitionProps).name; |
| 27 | if (name != null && name !== 'auto') { |
| 28 | const existing = mountedNamedViewTransitions.get(name); |
| 29 | if (existing !== undefined) { |
| 30 | if (existing !== fiber && existing !== fiber.alternate) { |
| 31 | if (!didWarnAboutName[name]) { |
| 32 | didWarnAboutName[name] = true; |
| 33 | const stringifiedName = JSON.stringify(name); |
| 34 | runWithFiberInDEV(fiber, () => { |
| 35 | console.error( |
| 36 | 'There are two <ViewTransition name=%s> components with the same name mounted ' + |
| 37 | 'at the same time. This is not supported and will cause View Transitions ' + |
| 38 | 'to error. Try to use a more unique name e.g. by using a namespace prefix ' + |
| 39 | 'and adding the id of an item to the name.', |
| 40 | stringifiedName, |
| 41 | ); |
| 42 | }); |
| 43 | runWithFiberInDEV(existing, () => { |
| 44 | console.error( |
| 45 | 'The existing <ViewTransition name=%s> duplicate has this stack trace.', |
| 46 | stringifiedName, |
| 47 | ); |
| 48 | }); |
| 49 | } |
| 50 | } |
| 51 | } else { |
| 52 | mountedNamedViewTransitions.set(name, fiber); |
| 53 | } |
| 54 | } |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | export function untrackNamedViewTransition(fiber: Fiber): void { |
| 59 | if (__DEV__) { |
| 60 | const name = (fiber.memoizedProps as ViewTransitionProps).name; |
| 61 | if (name != null && name !== 'auto') { |
| 62 | const existing = mountedNamedViewTransitions.get(name); |
| 63 | if ( |
| 64 | existing !== undefined && |
| 65 | (existing === fiber || existing === fiber.alternate) |
| 66 | ) { |
| 67 | mountedNamedViewTransitions.delete(name); |
| 68 | } |
| 69 | } |
| 70 | } |
| 71 | } |