PeerTube/client/src/standalone/player/events.ts

49 lines
1.3 KiB
TypeScript

import { EventHandler } from './definitions'
interface PlayerEventRegistrar {
registrations: Function[]
}
interface PlayerEventRegistrationMap {
[ name: string ]: PlayerEventRegistrar
}
export class EventRegistrar {
private eventRegistrations: PlayerEventRegistrationMap = {}
public bindToChannel (channel: Channel.MessagingChannel) {
for (const name of Object.keys(this.eventRegistrations)) {
channel.bind(name, (txn, params) => this.fire(name, params))
}
}
public registerTypes (names: string[]) {
for (const name of names) {
this.eventRegistrations[ name ] = { registrations: [] }
}
}
public fire<T> (name: string, event: T) {
this.eventRegistrations[ name ].registrations.forEach(x => x(event))
}
public addListener<T> (name: string, handler: EventHandler<T>) {
if (!this.eventRegistrations[ name ]) {
console.warn(`PeerTube: addEventListener(): The event '${name}' is not supported`)
return false
}
this.eventRegistrations[ name ].registrations.push(handler)
return true
}
public removeListener<T> (name: string, handler: EventHandler<T>) {
if (!this.eventRegistrations[ name ]) return false
this.eventRegistrations[ name ].registrations = this.eventRegistrations[ name ].registrations.filter(x => x === handler)
return true
}
}