Press n or j to go to the next uncovered block, b, p or k for the previous block.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | 1x 1x 1x 1x | import { LektorEvent } from "./events"; class Hub { _subscriptions: Map<string, Set<(e: any) => void>>; constructor() { this._subscriptions = new Map(); } /** * Subscribes a callback to an event. */ subscribe<T extends LektorEvent>( event: T, callback: (e: InstanceType<T>) => void ) { const eventType = event.getEventType(); let subs = this._subscriptions.get(eventType); if (subs === undefined) { subs = new Set(); this._subscriptions.set(eventType, subs); } subs.add(callback); } /** * Unsubscribes a callback from an event. */ unsubscribe<T extends LektorEvent>( event: T, callback: (e: InstanceType<T>) => void ) { const eventType = event.getEventType(); const subs = this._subscriptions.get(eventType); if (subs !== undefined) { subs.delete(callback); } } /** * Emits an event with some parameters. */ emit(event: InstanceType<LektorEvent>) { const subs = this._subscriptions.get(event.type); if (subs !== undefined) { subs.forEach((callback) => { try { callback(event); } catch (e) { console.log( "Event callback failed: ", e, "callback=", callback, "event=", event ); } }); } } } const hub = new Hub(); export default hub; |