vector-im-hydrogen-web/src/matrix/room/room.js

65 lines
2.0 KiB
JavaScript

import EventEmitter from "../../EventEmitter.js";
import RoomSummary from "./summary.js";
import SyncWriter from "./timeline/persistence/SyncWriter.js";
import Timeline from "./timeline/Timeline.js";
import FragmentIdComparer from "./timeline/FragmentIdComparer.js";
export default class Room extends EventEmitter {
constructor({roomId, storage, hsApi, emitCollectionChange}) {
super();
this._roomId = roomId;
this._storage = storage;
this._hsApi = hsApi;
this._summary = new RoomSummary(roomId);
this._fragmentIdComparer = new FragmentIdComparer([]);
this._syncWriter = new SyncWriter({roomId, storage, fragmentIdComparer: this._fragmentIdComparer});
this._emitCollectionChange = emitCollectionChange;
this._timeline = null;
}
persistSync(roomResponse, membership, txn) {
const summaryChanged = this._summary.applySync(roomResponse, membership, txn);
const newTimelineEntries = this._syncWriter.writeSync(roomResponse, txn);
return {summaryChanged, newTimelineEntries};
}
emitSync({summaryChanged, newTimelineEntries}) {
if (summaryChanged) {
this.emit("change");
this._emitCollectionChange(this);
}
if (this._timeline) {
this._timeline.appendLiveEntries(newTimelineEntries);
}
}
load(summary, txn) {
this._summary.load(summary);
return this._syncWriter.load(txn);
}
get name() {
return this._summary.name;
}
get id() {
return this._roomId;
}
async openTimeline() {
if (this._timeline) {
throw new Error("not dealing with load race here for now");
}
this._timeline = new Timeline({
roomId: this.id,
storage: this._storage,
hsApi: this._hsApi,
fragmentIdComparer: this._fragmentIdComparer,
closeCallback: () => this._timeline = null,
});
await this._timeline.load();
return this._timeline;
}
}