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| 1 | +/** |
| 2 | + * @license |
| 3 | + * Copyright 2023 Google LLC |
| 4 | + * |
| 5 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | + * you may not use this file except in compliance with the License. |
| 7 | + * You may obtain a copy of the License at |
| 8 | + * |
| 9 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | + * |
| 11 | + * Unless required by applicable law or agreed to in writing, software |
| 12 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | + * See the License for the specific language governing permissions and |
| 15 | + * limitations under the License. |
| 16 | + */ |
| 17 | + |
| 18 | +import { |
| 19 | + IndexedDbOfflineComponentProvider, |
| 20 | + MemoryOfflineComponentProvider, |
| 21 | + MultiTabOfflineComponentProvider, |
| 22 | + OfflineComponentProvider, |
| 23 | + OnlineComponentProvider |
| 24 | +} from '../core/component_provider'; |
| 25 | + |
| 26 | +export interface MemoryLocalCache { |
| 27 | + kind: 'memory'; |
| 28 | + _onlineComponentProvider: OnlineComponentProvider; |
| 29 | + _offlineComponentProvider: MemoryOfflineComponentProvider; |
| 30 | +} |
| 31 | + |
| 32 | +class MemoryLocalCacheImpl implements MemoryLocalCache { |
| 33 | + kind: 'memory' = 'memory'; |
| 34 | + _onlineComponentProvider: OnlineComponentProvider; |
| 35 | + _offlineComponentProvider: MemoryOfflineComponentProvider; |
| 36 | + |
| 37 | + constructor() { |
| 38 | + this._onlineComponentProvider = new OnlineComponentProvider(); |
| 39 | + this._offlineComponentProvider = new MemoryOfflineComponentProvider(); |
| 40 | + } |
| 41 | +} |
| 42 | + |
| 43 | +export interface IndexedDbLocalCache { |
| 44 | + kind: 'indexeddb'; |
| 45 | + _onlineComponentProvider: OnlineComponentProvider; |
| 46 | + _offlineComponentProvider: OfflineComponentProvider; |
| 47 | +} |
| 48 | + |
| 49 | +class IndexedDbLocalCacheImpl implements IndexedDbLocalCache { |
| 50 | + kind: 'indexeddb' = 'indexeddb'; |
| 51 | + _onlineComponentProvider: OnlineComponentProvider; |
| 52 | + _offlineComponentProvider: OfflineComponentProvider; |
| 53 | + |
| 54 | + constructor(settings: IndexedDbSettings | undefined) { |
| 55 | + let tabManager: IndexedDbTabManager; |
| 56 | + if (settings?.tabManager) { |
| 57 | + settings.tabManager.initialize(settings); |
| 58 | + tabManager = settings.tabManager; |
| 59 | + } else { |
| 60 | + tabManager = indexedDbSingleTabManager(undefined); |
| 61 | + tabManager.initialize(settings); |
| 62 | + } |
| 63 | + this._onlineComponentProvider = tabManager._onlineComponentProvider!; |
| 64 | + this._offlineComponentProvider = tabManager._offlineComponentProvider!; |
| 65 | + } |
| 66 | +} |
| 67 | + |
| 68 | +export type FirestoreLocalCache = MemoryLocalCache | IndexedDbLocalCache; |
| 69 | + |
| 70 | +// Factory function |
| 71 | +export function memoryLocalCache(): MemoryLocalCache { |
| 72 | + return new MemoryLocalCacheImpl(); |
| 73 | +} |
| 74 | + |
| 75 | +export interface IndexedDbSettings { |
| 76 | + cacheSizeBytes?: number; |
| 77 | + // default to singleTabManager({forceOwnership: false}) |
| 78 | + tabManager?: IndexedDbTabManager; |
| 79 | +} |
| 80 | + |
| 81 | +// Factory function |
| 82 | +export function indexedDbLocalCache( |
| 83 | + settings?: IndexedDbSettings |
| 84 | +): IndexedDbLocalCache { |
| 85 | + return new IndexedDbLocalCacheImpl(settings); |
| 86 | +} |
| 87 | + |
| 88 | +export interface IndexedDbSingleTabManager { |
| 89 | + kind: 'indexedDbSingleTab'; |
| 90 | + initialize: ( |
| 91 | + settings: Omit<IndexedDbSettings, 'tabManager'> | undefined |
| 92 | + ) => void; |
| 93 | + _onlineComponentProvider?: OnlineComponentProvider; |
| 94 | + _offlineComponentProvider?: OfflineComponentProvider; |
| 95 | +} |
| 96 | + |
| 97 | +class SingleTabManagerImpl implements IndexedDbSingleTabManager { |
| 98 | + kind: 'indexedDbSingleTab' = 'indexedDbSingleTab'; |
| 99 | + |
| 100 | + _onlineComponentProvider?: OnlineComponentProvider; |
| 101 | + _offlineComponentProvider?: OfflineComponentProvider; |
| 102 | + |
| 103 | + constructor(private forceOwnership?: boolean) {} |
| 104 | + |
| 105 | + initialize( |
| 106 | + settings: Omit<IndexedDbSettings, 'tabManager'> | undefined |
| 107 | + ): void { |
| 108 | + this._onlineComponentProvider = new OnlineComponentProvider(); |
| 109 | + this._offlineComponentProvider = new IndexedDbOfflineComponentProvider( |
| 110 | + this._onlineComponentProvider, |
| 111 | + settings?.cacheSizeBytes, |
| 112 | + this.forceOwnership |
| 113 | + ); |
| 114 | + } |
| 115 | +} |
| 116 | + |
| 117 | +export interface IndexedDbMultipleTabManager { |
| 118 | + kind: 'IndexedDbMultipleTab'; |
| 119 | + initialize: (settings: Omit<IndexedDbSettings, 'tabManager'>) => void; |
| 120 | + _onlineComponentProvider?: OnlineComponentProvider; |
| 121 | + _offlineComponentProvider?: OfflineComponentProvider; |
| 122 | +} |
| 123 | + |
| 124 | +class MultiTabManagerImpl implements IndexedDbMultipleTabManager { |
| 125 | + kind: 'IndexedDbMultipleTab' = 'IndexedDbMultipleTab'; |
| 126 | + |
| 127 | + _onlineComponentProvider?: OnlineComponentProvider; |
| 128 | + _offlineComponentProvider?: OfflineComponentProvider; |
| 129 | + |
| 130 | + initialize( |
| 131 | + settings: Omit<IndexedDbSettings, 'tabManager'> | undefined |
| 132 | + ): void { |
| 133 | + this._onlineComponentProvider = new OnlineComponentProvider(); |
| 134 | + this._offlineComponentProvider = new MultiTabOfflineComponentProvider( |
| 135 | + this._onlineComponentProvider, |
| 136 | + settings?.cacheSizeBytes |
| 137 | + ); |
| 138 | + } |
| 139 | +} |
| 140 | + |
| 141 | +export type IndexedDbTabManager = |
| 142 | + | IndexedDbSingleTabManager |
| 143 | + | IndexedDbMultipleTabManager; |
| 144 | + |
| 145 | +export function indexedDbSingleTabManager( |
| 146 | + settings: { forceOwnership?: boolean } | undefined |
| 147 | +): IndexedDbSingleTabManager { |
| 148 | + return new SingleTabManagerImpl(settings?.forceOwnership); |
| 149 | +} |
| 150 | +export function indexedDbMultipleTabManager(): IndexedDbMultipleTabManager { |
| 151 | + return new MultiTabManagerImpl(); |
| 152 | +} |
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