Jump to home page when leaving a room

so that you don't get thrown into a room you may be ignoring on purpose

src/RoomListSorter.js

@@ -1,31 +0,0 @@
-/*
-Copyright 2015, 2016 OpenMarket Ltd
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-'use strict';
-
-function tsOfNewestEvent(room) {
-    if (room.timeline.length) {
-        return room.timeline[room.timeline.length - 1].getTs();
-    } else {
-        return Number.MAX_SAFE_INTEGER;
-    }
-}
-
-export function mostRecentActivityFirst(roomList) {
-    return roomList.sort(function(a, b) {
-        return tsOfNewestEvent(b) - tsOfNewestEvent(a);
-    });
-}

src/components/structures/MatrixChat.tsx

@@ -591,7 +591,7 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
                             MatrixClientPeg.get().leave(payload.room_id).then(() => {
                                 modal.close();
                                 if (this.state.currentRoomId === payload.room_id) {
-                                    dis.dispatch({action: 'view_next_room'});
+                                    dis.dispatch({action: 'view_home_page'});
                                 }
                             }, (err) => {
                                 modal.close();
@@ -620,9 +620,6 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
                 }
                 break;
             }
-            case 'view_next_room':
-                this.viewNextRoom(1);
-                break;
             case Action.ViewUserSettings: {
                 const tabPayload = payload as OpenToTabPayload;
                 const UserSettingsDialog = sdk.getComponent("dialogs.UserSettingsDialog");
@@ -802,35 +799,6 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
         this.notifyNewScreen('register');
     }
 
-    // TODO: Move to RoomViewStore
-    private viewNextRoom(roomIndexDelta: number) {
-        const allRooms = RoomListSorter.mostRecentActivityFirst(
-            MatrixClientPeg.get().getRooms(),
-        );
-        // If there are 0 rooms or 1 room, view the home page because otherwise
-        // if there are 0, we end up trying to index into an empty array, and
-        // if there is 1, we end up viewing the same room.
-        if (allRooms.length < 2) {
-            dis.dispatch({
-                action: 'view_home_page',
-            });
-            return;
-        }
-        let roomIndex = -1;
-        for (let i = 0; i < allRooms.length; ++i) {
-            if (allRooms[i].roomId === this.state.currentRoomId) {
-                roomIndex = i;
-                break;
-            }
-        }
-        roomIndex = (roomIndex + roomIndexDelta) % allRooms.length;
-        if (roomIndex < 0) roomIndex = allRooms.length - 1;
-        dis.dispatch({
-            action: 'view_room',
-            room_id: allRooms[roomIndex].roomId,
-        });
-    }
-
     // switch view to the given room
     //
     // @param {Object} roomInfo Object containing data about the room to be joined
@@ -1097,9 +1065,9 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
 
     private forgetRoom(roomId: string) {
         MatrixClientPeg.get().forget(roomId).then(() => {
-            // Switch to another room view if we're currently viewing the historical room
+            // Switch to home page if we're currently viewing the forgotten room
             if (this.state.currentRoomId === roomId) {
-                dis.dispatch({ action: "view_next_room" });
+                dis.dispatch({ action: "view_home_page" });
             }
         }).catch((err) => {
             const errCode = err.errcode || _td("unknown error code");
@@ -1233,12 +1201,8 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
         } else {
             if (MatrixClientPeg.get().isGuest()) {
                 dis.dispatch({action: 'view_welcome_page'});
-            } else if (getHomePageUrl(this.props.config)) {
-                dis.dispatch({action: 'view_home_page'});
             } else {
-                this.firstSyncPromise.promise.then(() => {
+                dis.dispatch({action: 'view_home_page'});
-                    dis.dispatch({action: 'view_next_room'});
-                });
             }
         }
     }

src/components/structures/RoomView.tsx

@@ -1332,7 +1332,7 @@ export default class RoomView extends React.Component<IProps, IState> {
             rejecting: true,
         });
         this.context.leave(this.state.roomId).then(() => {
-            dis.dispatch({ action: 'view_next_room' });
+            dis.dispatch({ action: 'view_home_page' });
             this.setState({
                 rejecting: false,
             });
@@ -1366,7 +1366,7 @@ export default class RoomView extends React.Component<IProps, IState> {
             await this.context.setIgnoredUsers(ignoredUsers);
 
             await this.context.leave(this.state.roomId);
-            dis.dispatch({ action: 'view_next_room' });
+            dis.dispatch({ action: 'view_home_page' });
             this.setState({
                 rejecting: false,
             });

src/components/views/dialogs/RoomSettingsDialog.js

@@ -53,9 +53,9 @@ export default class RoomSettingsDialog extends React.Component {
     }
 
     _onAction = (payload) => {
-        // When room changes below us, close the room settings
+        // When view changes below us, close the room settings
         // whilst the modal is open this can only be triggered when someone hits Leave Room
-        if (payload.action === 'view_next_room') {
+        if (payload.action === 'view_home_page') {
             this.props.onFinished();
         }
     };

src/utils/membership.ts

@@ -140,6 +140,6 @@ export async function leaveRoomBehaviour(roomId: string) {
     }
 
     if (RoomViewStore.getRoomId() === roomId) {
-        dis.dispatch({action: 'view_next_room'});
+        dis.dispatch({action: 'view_home_page'});
     }
 }