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// Type definitions for dexie-observable v4.0.1-beta.13 | ||
// Project: https://github.com/dexie/Dexie.js/tree/master/addons/Dexie.Observable | ||
// Definitions by: David Fahlander <http://github.com/dfahlander> | ||
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import Dexie, { DexieEventSet } from 'dexie'; | ||
import { IDatabaseChange } from '../api'; | ||
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export interface SyncNodeConstructor { | ||
new() : SyncNode; | ||
} | ||
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// | ||
// Interfaces of Dexie.Observable | ||
// | ||
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/** | ||
* A SyncNode represents a local database instance that subscribes | ||
* to changes made on the database. | ||
* SyncNodes are stored in the _syncNodes table. | ||
* | ||
* Dexie.Syncable extends this interface and allows 'remote' nodes to be stored | ||
* as well. | ||
*/ | ||
export interface SyncNode { | ||
id?: number, | ||
myRevision: number, | ||
type: 'local' | 'remote', | ||
lastHeartBeat: number, | ||
deleteTimeStamp: number, // In case lastHeartBeat is too old, a value of now + HIBERNATE_GRACE_PERIOD will be set here. If reached before node wakes up, node will be deleted. | ||
isMaster: number // 1 if true. Not using Boolean because it's not possible to index Booleans. | ||
} | ||
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export interface ObservableEventSet extends DexieEventSet { | ||
(eventName: 'latestRevisionIncremented', subscriber: (dbName: string, latestRevision: number) => void): void; | ||
(eventName: 'suicideNurseCall', subscriber: (dbName: string, nodeID: number) => void): void; | ||
(eventName: 'intercomm', subscriber: (dbName: string) => void): void; | ||
(eventName: 'beforeunload', subscriber: () => void): void; | ||
} | ||
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// Object received by on('message') after sendMessage() or broadcastMessage() | ||
interface MessageEvent { | ||
id: number; | ||
type: string; | ||
message: any; | ||
destinationNode: number; | ||
wantReply?: boolean; | ||
resolve(result: any): void; | ||
reject(error: any): void; | ||
} | ||
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// | ||
// Extend Dexie interface | ||
// | ||
declare module 'dexie' { | ||
// Extend methods on db (db.sendMessage(), ...) | ||
interface Dexie { | ||
// Placeholder where to access the SyncNode class constructor. | ||
// (makes it valid to do new db.observable.SyncNode()) | ||
observable: { | ||
version: string; | ||
SyncNode: SyncNodeConstructor; | ||
sendMessage( | ||
type: string, // Don't use 'response' as it is used internally by the framework | ||
message: any, // anything that can be saved by IndexedDB | ||
destinationNode: number, | ||
options: { | ||
wantReply?: boolean; | ||
} | ||
): Promise<any> | void; // When wantReply is undefined or false return is void | ||
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broadcastMessage( | ||
type: string, | ||
message: any, // anything that can be saved by IndexedDB | ||
bIncludeSelf: boolean | ||
): void; | ||
} | ||
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readonly _localSyncNode: SyncNode; | ||
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_changes: Dexie.Table<IDatabaseChange & {rev: number}, number>; | ||
_syncNodes: Dexie.Table<SyncNode, number>; | ||
_intercomm: Dexie.Table<any, number>; | ||
} | ||
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// Extended events db.on('changes', subscriber), ... | ||
interface DbEvents { | ||
(eventName: 'changes', subscriber: (changes: IDatabaseChange[], partial: boolean)=>void): void; | ||
(eventName: 'cleanup', subscriber: ()=>any): void; | ||
(eventName: 'message', subscriber: (msg: MessageEvent)=>any): void; | ||
} | ||
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// Extended IndexSpec with uuid boolean for primary key. | ||
interface IndexSpec { | ||
uuid: boolean; | ||
} | ||
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interface DexieConstructor { | ||
Observable: { | ||
(db: Dexie) : void; | ||
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version: string; | ||
createUUID: () => string; | ||
on: ObservableEventSet; | ||
localStorageImpl: { | ||
setItem(key: string, value: string): void, | ||
getItem(key: string): string, | ||
removeItem(key: string): void; | ||
}; | ||
_onStorage: (event: StorageEvent) => void; | ||
} | ||
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} | ||
} | ||
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export default Dexie.Observable; |
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