Merge pull request #5948 from jaiwanth-v/room-preview-spaces

Generate room preview even when minimized

src/components/structures/LeftPanel.tsx

@@ -416,7 +416,7 @@ export default class LeftPanel extends React.Component<IProps, IState> {
 
         const roomList = <RoomList
             onKeyDown={this.onKeyDown}
-            resizeNotifier={null}
+            resizeNotifier={this.props.resizeNotifier}
             onFocus={this.onFocus}
             onBlur={this.onBlur}
             isMinimized={this.props.isMinimized}

src/components/views/rooms/RoomList.tsx

@@ -539,6 +539,7 @@ export default class RoomList extends React.PureComponent<IProps, IState> {
                     onResize={this.props.onResize}
                     showSkeleton={showSkeleton}
                     extraTiles={extraTiles}
+                    resizeNotifier={this.props.resizeNotifier}
                     alwaysVisible={ALWAYS_VISIBLE_TAGS.includes(orderedTagId)}
                 />
             });

src/components/views/rooms/RoomSublist.tsx

@@ -44,6 +44,7 @@ import { ActionPayload } from "../../../dispatcher/payloads";
 import { Enable, Resizable } from "re-resizable";
 import { Direction } from "re-resizable/lib/resizer";
 import { polyfillTouchEvent } from "../../../@types/polyfill";
+import { ResizeNotifier } from "../../../utils/ResizeNotifier";
 import { RoomNotificationStateStore } from "../../../stores/notifications/RoomNotificationStateStore";
 import RoomListLayoutStore from "../../../stores/room-list/RoomListLayoutStore";
 import { arrayFastClone, arrayHasOrderChange } from "../../../utils/arrays";
@@ -75,7 +76,7 @@ interface IProps {
     onResize: () => void;
     showSkeleton?: boolean;
     alwaysVisible?: boolean;
-
+    resizeNotifier: ResizeNotifier;
     extraTiles?: ReactComponentElement<typeof ExtraTile>[];
 
     // TODO: Account for https://github.com/vector-im/element-web/issues/14179
@@ -528,6 +529,7 @@ export default class RoomSublist extends React.Component<IProps, IState> {
                 tiles.push(<RoomTile
                     room={room}
                     key={`room-${room.roomId}`}
+                    resizeNotifier={this.props.resizeNotifier}
                     showMessagePreview={this.layout.showPreviews}
                     isMinimized={this.props.isMinimized}
                     tag={this.props.tagId}

src/components/views/rooms/RoomTile.tsx

@@ -53,12 +53,14 @@ import { CommunityPrototypeStore, IRoomProfile } from "../../../stores/Community
 import { replaceableComponent } from "../../../utils/replaceableComponent";
 import { getUnsentMessages } from "../../structures/RoomStatusBar";
 import { StaticNotificationState } from "../../../stores/notifications/StaticNotificationState";
+import { ResizeNotifier } from "../../../utils/ResizeNotifier";
 
 interface IProps {
     room: Room;
     showMessagePreview: boolean;
     isMinimized: boolean;
     tag: TagID;
+    resizeNotifier: ResizeNotifier;
 }
 
 type PartialDOMRect = Pick<DOMRect, "left" | "bottom">;
@@ -102,6 +104,9 @@ export default class RoomTile extends React.PureComponent<IProps, IState> {
         };
         this.notificationState = RoomNotificationStateStore.instance.getRoomState(this.props.room);
         this.roomProps = EchoChamber.forRoom(this.props.room);
+        if (this.props.resizeNotifier) {
+            this.props.resizeNotifier.on("middlePanelResized", this.onResize);
+        }
     }
 
     private countUnsentEvents(): number {
@@ -116,6 +121,12 @@ export default class RoomTile extends React.PureComponent<IProps, IState> {
         this.forceUpdate(); // notification state changed - update
     };
 
+    private onResize = () => {
+        if (this.showMessagePreview && !this.state.messagePreview) {
+            this.setState({messagePreview: this.generatePreview()});
+        }
+    };
+
     private onLocalEchoUpdated = (ev: MatrixEvent, room: Room) => {
         if (!room?.roomId === this.props.room.roomId) return;
         this.setState({hasUnsentEvents: this.countUnsentEvents() > 0});
@@ -195,6 +206,9 @@ export default class RoomTile extends React.PureComponent<IProps, IState> {
             );
             this.props.room.off("Room.name", this.onRoomNameUpdate);
         }
+        if (this.props.resizeNotifier) {
+            this.props.resizeNotifier.off("middlePanelResized", this.onResize);
+        }
         ActiveRoomObserver.removeListener(this.props.room.roomId, this.onActiveRoomUpdate);
         defaultDispatcher.unregister(this.dispatcherRef);
         this.notificationState.off(NOTIFICATION_STATE_UPDATE, this.onNotificationUpdate);