hydrogen-web/src/domain/session/room/RoomViewModel.js

71 lines
2.0 KiB
JavaScript

import EventEmitter from "../../../EventEmitter.js";
import TimelineViewModel from "./timeline/TimelineViewModel.js";
import {avatarInitials} from "../avatar.js";
export default class RoomViewModel extends EventEmitter {
constructor({room, ownUserId, closeCallback}) {
super();
this._room = room;
this._ownUserId = ownUserId;
this._timeline = null;
this._timelineVM = null;
this._onRoomChange = this._onRoomChange.bind(this);
this._timelineError = null;
this._closeCallback = closeCallback;
}
async load() {
this._room.on("change", this._onRoomChange);
try {
this._timeline = await this._room.openTimeline();
this._timelineVM = new TimelineViewModel(this._timeline, this._ownUserId);
this.emit("change", "timelineViewModel");
} catch (err) {
console.error(`room.openTimeline(): ${err.message}:\n${err.stack}`);
this._timelineError = err;
this.emit("change", "error");
}
}
dispose() {
// this races with enable, on the await openTimeline()
if (this._timeline) {
// will stop the timeline from delivering updates on entries
this._timeline.close();
}
}
close() {
this._closeCallback();
}
// room doesn't tell us yet which fields changed,
// so emit all fields originating from summary
_onRoomChange() {
this.emit("change", "name");
}
get name() {
return this._room.name;
}
get timelineViewModel() {
return this._timelineVM;
}
get error() {
if (this._timelineError) {
return `Something went wrong loading the timeline: ${this._timelineError.message}`;
}
return "";
}
get avatarInitials() {
return avatarInitials(this._room.name);
}
sendMessage(message) {
this._room.sendEvent("m.room.message", {msgtype: "m.text", body: message});
}
}