forked from mystiq/hydrogen-web
53 lines
1.4 KiB
JavaScript
53 lines
1.4 KiB
JavaScript
import EventEmitter from "../../../EventEmitter.js";
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import TimelineViewModel from "./timeline/TimelineViewModel.js";
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export default class RoomViewModel extends EventEmitter {
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constructor(room) {
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super();
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this._room = room;
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this._timeline = null;
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this._timelineVM = null;
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this._onRoomChange = this._onRoomChange.bind(this);
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this._timelineError = null;
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}
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async enable() {
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this._room.on("change", this._onRoomChange);
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try {
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this._timeline = await this._room.openTimeline();
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this._timelineVM = new TimelineViewModel(this._timeline);
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this.emit("change", "timelineEntries");
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} catch (err) {
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this._timelineError = err;
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this.emit("change", "error");
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}
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}
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disable() {
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if (this._timeline) {
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// will stop the timeline from delivering updates on entries
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this._timeline.close();
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}
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}
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// room doesn't tell us yet which fields changed,
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// so emit all fields originating from summary
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_onRoomChange() {
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this.emit("change", "name");
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}
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get name() {
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return this._room.name;
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}
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get timelineViewModel() {
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return this._timelineVM;
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}
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get error() {
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if (this._timelineError) {
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return `Something went wrong loading the timeline: ${this._timelineError.message}`;
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}
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return null;
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}
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}
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