| 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 {ViewTransitionProps, ViewTransitionClass} from 'shared/ReactTypes'; |
| 11 | import type {TreeContext} from './ReactFizzTreeContext'; |
| 12 | import type {ResumableState} from './ReactFizzConfig'; |
| 13 | |
| 14 | import {getTreeId} from './ReactFizzTreeContext'; |
| 15 | import {makeId} from './ReactFizzConfig'; |
| 16 | |
| 17 | export function getViewTransitionName( |
| 18 | props: ViewTransitionProps, |
| 19 | treeContext: TreeContext, |
| 20 | resumableState: ResumableState, |
| 21 | ): string { |
| 22 | if (props.name != null && props.name !== 'auto') { |
| 23 | return props.name; |
| 24 | } |
| 25 | const treeId = getTreeId(treeContext); |
| 26 | return makeId(resumableState, treeId, 0); |
| 27 | } |
| 28 | |
| 29 | function getClassNameByType(classByType: ?ViewTransitionClass): ?string { |
| 30 | if (classByType == null || typeof classByType === 'string') { |
| 31 | return classByType; |
| 32 | } |
| 33 | let className: ?string = null; |
| 34 | const activeTypes = null; // TODO: Support passing active types. |
| 35 | if (activeTypes !== null) { |
| 36 | for (let i = 0; i < activeTypes.length; i++) { |
| 37 | const match = classByType[activeTypes[i]]; |
| 38 | if (match != null) { |
| 39 | // $FlowFixMe[invalid-compare] |
| 40 | if (match === 'none') { |
| 41 | // If anything matches "none" that takes precedence over any other |
| 42 | // type that also matches. |
| 43 | return 'none'; |
| 44 | } |
| 45 | if (className == null) { |
| 46 | className = match; |
| 47 | } else { |
| 48 | className += ' ' + match; |
| 49 | } |
| 50 | } |
| 51 | } |
| 52 | } |
| 53 | if (className == null) { |
| 54 | // We had no other matches. Match the default for this configuration. |
| 55 | return classByType.default; |
| 56 | } |
| 57 | return className; |
| 58 | } |
| 59 | |
| 60 | export function getViewTransitionClassName( |
| 61 | defaultClass: ?ViewTransitionClass, |
| 62 | eventClass: ?ViewTransitionClass, |
| 63 | ): ?string { |
| 64 | const className: ?string = getClassNameByType(defaultClass); |
| 65 | const eventClassName: ?string = getClassNameByType(eventClass); |
| 66 | if (eventClassName == null) { |
| 67 | return className === 'auto' ? null : className; |
| 68 | } |
| 69 | if (eventClassName === 'auto') { |
| 70 | return null; |
| 71 | } |
| 72 | return eventClassName; |
| 73 | } |