Modify the group store to include group rooms

and modify components to use this new part of the store such that feedback can be given
when adding or removing a room from the room list.

src/components/views/dialogs/AddressPickerDialog.js

@@ -23,6 +23,7 @@ import MatrixClientPeg from '../../../MatrixClientPeg';
 import AccessibleButton from '../elements/AccessibleButton';
 import Promise from 'bluebird';
 import { addressTypes, getAddressType } from '../../../UserAddress.js';
+import GroupStoreCache from '../../../stores/GroupStoreCache';
 
 const TRUNCATE_QUERY_LIST = 40;
 const QUERY_USER_DIRECTORY_DEBOUNCE_MS = 200;
@@ -241,9 +242,9 @@ module.exports = React.createClass({
 
     _doNaiveGroupRoomSearch: function(query) {
         const lowerCaseQuery = query.toLowerCase();
-        MatrixClientPeg.get().getGroupRooms(this.props.groupId).then((resp) => {
+        const groupStore = GroupStoreCache.getGroupStore(MatrixClientPeg.get(), this.props.groupId);
         const results = [];
-            resp.chunk.forEach((r) => {
+        groupStore.getGroupRooms().forEach((r) => {
             const nameMatch = (r.name || '').toLowerCase().includes(lowerCaseQuery);
             const topicMatch = (r.topic || '').toLowerCase().includes(lowerCaseQuery);
             const aliasMatch = (r.canonical_alias || '').toLowerCase().includes(lowerCaseQuery);
@@ -257,16 +258,9 @@ module.exports = React.createClass({
             });
         });
         this._processResults(results, query);
-        }).catch((err) => {
-            console.error('Error whilst searching group users: ', err);
-            this.setState({
-                searchError: err.errcode ? err.message : _t('Something went wrong!'),
-            });
-        }).done(() => {
         this.setState({
             busy: false,
         });
-        });
     },
 
     _doRoomSearch: function(query) {

src/components/views/groups/GroupRoomList.js

@@ -17,6 +17,7 @@ import React from 'react';
 import { _t } from '../../../languageHandler';
 import sdk from '../../../index';
 import { groupRoomFromApiObject } from '../../../groups';
+import GroupStoreCache from '../../../stores/GroupStoreCache';
 import GeminiScrollbar from 'react-gemini-scrollbar';
 import PropTypes from 'prop-types';
 import {MatrixClient} from 'matrix-js-sdk';
@@ -34,7 +35,6 @@ export default React.createClass({
 
     getInitialState: function() {
         return {
-            fetching: false,
             rooms: null,
             truncateAt: INITIAL_LOAD_NUM_ROOMS,
             searchQuery: "",
@@ -43,21 +43,29 @@ export default React.createClass({
 
     componentWillMount: function() {
         this._unmounted = false;
+        this._initGroupStore(this.props.groupId);
+    },
+
+    _initGroupStore: function(groupId) {
+        this._groupStore = GroupStoreCache.getGroupStore(this.context.matrixClient, groupId);
+        this._groupStore.on('update', () => {
+            this._fetchRooms();
+        });
+        this._groupStore.on('error', (err) => {
+            console.error('Error in group store (listened to by GroupRoomList)', err);
+            this.setState({
+                rooms: null,
+            });
+        });
         this._fetchRooms();
     },
 
     _fetchRooms: function() {
-        this.setState({fetching: true});
-        this.context.matrixClient.getGroupRooms(this.props.groupId).then((result) => {
+        if (this._unmounted) return;
         this.setState({
-                rooms: result.chunk.map((apiRoom) => {
+            rooms: this._groupStore.getGroupRooms().map((apiRoom) => {
                 return groupRoomFromApiObject(apiRoom);
             }),
-                fetching: false,
-            });
-        }).catch((e) => {
-            this.setState({fetching: false});
-            console.error("Failed to get group room list: ", e);
         });
     },
 
@@ -110,12 +118,7 @@ export default React.createClass({
     },
 
     render: function() {
-        if (this.state.fetching) {
-            const Spinner = sdk.getComponent("elements.Spinner");
-            return (<div className="mx_GroupRoomList">
-                <Spinner />
-            </div>);
-        } else if (this.state.rooms === null) {
+        if (this.state.rooms === null) {
             return null;
         }
 

src/components/views/groups/GroupRoomTile.js

@@ -21,6 +21,7 @@ import PropTypes from 'prop-types';
 import sdk from '../../../index';
 import dis from '../../../dispatcher';
 import { GroupRoomType } from '../../../groups';
+import GroupStoreCache from '../../../stores/GroupStoreCache';
 import Modal from '../../../Modal';
 
 const GroupRoomTile = React.createClass({
@@ -49,10 +50,10 @@ const GroupRoomTile = React.createClass({
 
     removeRoomFromGroup: function() {
         const groupId = this.props.groupId;
+        const groupStore = GroupStoreCache.getGroupStore(this.context.matrixClient, groupId);
         const roomName = this.state.name;
         const roomId = this.props.groupRoom.roomId;
-        this.context.matrixClient
-            .removeRoomFromGroup(groupId, roomId)
+        groupStore.removeRoomFromGroup(roomId)
             .catch((err) => {
                 console.error(`Error whilst removing ${roomId} from ${groupId}`, err);
                 const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");

src/stores/GroupStore.js

@@ -26,7 +26,9 @@ export default class GroupStore extends EventEmitter {
         this.groupId = groupId;
         this._matrixClient = matrixClient;
         this._summary = {};
+        this._rooms = [];
         this._fetchSummary();
+        this._fetchRooms();
     }
 
     _fetchSummary() {
@@ -38,6 +40,15 @@ export default class GroupStore extends EventEmitter {
         });
     }
 
+    _fetchRooms() {
+        this._matrixClient.getGroupRooms(this.groupId).then((resp) => {
+            this._rooms = resp.chunk;
+            this._notifyListeners();
+        }).catch((err) => {
+            this.emit('error', err);
+        });
+    }
+
     _notifyListeners() {
         this.emit('update');
     }
@@ -46,9 +57,22 @@ export default class GroupStore extends EventEmitter {
         return this._summary;
     }
 
+    getGroupRooms() {
+        return this._rooms;
+    }
+
     addRoomToGroup(roomId) {
         return this._matrixClient
-            .addRoomToGroup(this.groupId, roomId);
+            .addRoomToGroup(this.groupId, roomId)
+            .then(this._fetchRooms.bind(this));
+    }
+
+    removeRoomFromGroup(roomId) {
+        return this._matrixClient
+            .removeRoomFromGroup(this.groupId, roomId)
+            // Room might be in the summary, refresh just in case
+            .then(this._fetchSummary.bind(this))
+            .then(this._fetchRooms.bind(this));
     }
 
     addRoomToGroupSummary(roomId, categoryId) {

src/stores/GroupStoreCache.js

@@ -28,6 +28,7 @@ class GroupStoreCache {
             // referencing it.
             this.groupStore = new GroupStore(matrixClient, groupId);
         }
+        this.groupStore._fetchSummary();
         return this.groupStore;
     }
 }