forked from mystiq/hydrogen-web
146 lines
3.9 KiB
JavaScript
146 lines
3.9 KiB
JavaScript
/*
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Copyright 2020 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import {getPrevContentFromStateEvent} from "../common.js";
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export const EVENT_TYPE = "m.room.member";
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export class RoomMember {
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constructor(data) {
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this._data = data;
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}
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static fromMemberEvent(roomId, memberEvent) {
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const userId = memberEvent?.state_key;
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if (typeof userId !== "string") {
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return;
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}
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const content = memberEvent.content;
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const prevContent = getPrevContentFromStateEvent(memberEvent);
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const membership = content?.membership;
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// fall back to prev_content for these as synapse doesn't (always?)
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// put them on content for "leave" memberships
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const displayName = content?.displayname || prevContent?.displayname;
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const avatarUrl = content?.avatar_url || prevContent?.avatar_url;
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return this._validateAndCreateMember(roomId, userId, membership, displayName, avatarUrl);
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}
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/**
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* Creates a (historical) member from a member event that is the next member event
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* after the point in time where we need a member for. This will use `prev_content`.
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*/
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static fromReplacingMemberEvent(roomId, memberEvent) {
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const userId = memberEvent && memberEvent.state_key;
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if (typeof userId !== "string") {
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return;
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}
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const content = getPrevContentFromStateEvent(memberEvent);
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return this._validateAndCreateMember(roomId, userId,
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content?.membership,
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content?.displayname,
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content?.avatar_url
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);
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}
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static _validateAndCreateMember(roomId, userId, membership, displayName, avatarUrl) {
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if (typeof membership !== "string") {
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return;
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}
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return new RoomMember({
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roomId,
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userId,
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membership,
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avatarUrl,
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displayName,
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});
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}
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get membership() {
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return this._data.membership;
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}
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/**
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* @return {String?} the display name, if any
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*/
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get displayName() {
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return this._data.displayName;
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}
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/**
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* @return {String} the display name or userId
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*/
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get name() {
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return this._data.displayName || this._data.userId;
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}
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/**
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* @return {String?} the avatar mxc url, if any
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*/
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get avatarUrl() {
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return this._data.avatarUrl;
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}
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get roomId() {
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return this._data.roomId;
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}
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get userId() {
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return this._data.userId;
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}
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serialize() {
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return this._data;
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}
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}
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export class MemberChange {
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constructor(roomId, memberEvent) {
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this._roomId = roomId;
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this._memberEvent = memberEvent;
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this._member = null;
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}
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get member() {
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if (!this._member) {
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this._member = RoomMember.fromMemberEvent(this._roomId, this._memberEvent);
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}
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return this._member;
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}
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get roomId() {
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return this._roomId;
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}
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get userId() {
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return this._memberEvent.state_key;
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}
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get previousMembership() {
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return getPrevContentFromStateEvent(this._memberEvent)?.membership;
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}
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get membership() {
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return this._memberEvent.content?.membership;
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}
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get hasLeft() {
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return this.previousMembership === "join" && this.membership !== "join";
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}
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get hasJoined() {
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return this.previousMembership !== "join" && this.membership === "join";
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}
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}
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