Squashed commit of the following:

commit 38d61d4
Author: Mirian Margiani <[email protected]>
Date:   Mon Dec 2 12:59:30 2024 +0100

    Hide less important unhandled events from the timeline

    Signed-off-by: Mirian Margiani <[email protected]>

commit 5817d68
Author: Mirian Margiani <[email protected]>
Date:   Mon Dec 2 12:59:29 2024 +0100

    Render unknown events without sender avatar as announcements

    Signed-off-by: Mirian Margiani <[email protected]>

commit 9c7da1c
Author: Mirian Margiani <[email protected]>
Date:   Mon Dec 2 12:59:28 2024 +0100

    Render unknown message types

    This helps users not to miss anything unnoticed. Clearly state
    that a message is not supported by hydrogen so users can check
    their messages with a different client.

    Signed-off-by: Mirian Margiani <[email protected]>

commit cd02ef6
Merge: 4ae47c0 58af591
Author: R Midhun Suresh <[email protected]>
Date:   Mon Oct 21 17:25:32 2024 +0530

    Merge pull request element-hq#1190 from element-hq/sdk-release/0.3.1

    Changes for sdk-release 0.3.1

commit 58af591
Author: R Midhun Suresh <[email protected]>
Date:   Mon Oct 21 17:23:57 2024 +0530

    Changes for sdk-release 0.3.1

src/domain/session/room/timeline/tiles/ITile.ts

@@ -18,6 +18,7 @@ export enum TileShape {
     DateHeader = "date-header",
     Call = "call",
     Verification = "verification",
+    UnknownEvent = "unknown-event",
 }
 
 // TODO: should we imply inheriting from view model here?

src/domain/session/room/timeline/tiles/UnknownEventTile.js

@@ -0,0 +1,35 @@
+/*
+Copyright 2024 Mirian Margiani <[email protected]>
+
+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.
+*/
+
+import {SimpleTile} from "./SimpleTile";
+
+export class UnknownEventTile extends SimpleTile {
+
+    get shape() {
+        return "unknown-event";
+    }
+
+    get details() {
+        const eventType = this._entry.eventType;
+        const content = this._entry.content;
+
+        if (content.msgtype) {
+            return this.i18n`This message is not supported by your app (event “${eventType}”, message type “${content.msgtype}”). Please report this issue.`
+        } else {
+            return this.i18n`This message is not supported by your app (event “${eventType}”). Please report this issue.`
+        }
+    }
+}

src/domain/session/room/timeline/tiles/index.ts

@@ -28,6 +28,7 @@ import {EncryptionEnabledTile} from "./EncryptionEnabledTile.js";
 import {MissingAttachmentTile} from "./MissingAttachmentTile.js";
 import {CallTile} from "./CallTile.js";
 import {VerificationTile} from "./VerificationTile.js";
+import {UnknownEventTile} from "./UnknownEventTile.js";
 
 import type {ITile, TileShape} from "./ITile";
 import type {Room} from "../../../../../matrix/room/Room";
@@ -82,8 +83,7 @@ export function tileClassForEntry(entry: TimelineEntry, options: Options): TileC
                         }
                         return VerificationTile as unknown as TileConstructor;
                     default:
-                        // unknown msgtype not rendered
-                        return undefined;
+                        return UnknownEventTile;
                 }
             }
             case "m.room.name":
@@ -105,9 +105,31 @@ export function tileClassForEntry(entry: TimelineEntry, options: Options): TileC
                 }
                 return undefined;
             }
-            default:
-                // unknown type not rendered
+
+            // These events are handled separately and don't need an extra timeline entry.
+            case "m.reaction":
+            case "m.room.redaction":
+                return undefined;
+
+            // Displaying these events is not supported but they can safely be
+            // hidden instead of spamming rooms with warning messages.
+            case "m.room.create":
+            case "m.room.power_levels":
+            case "m.room.join_rules":
+            case "m.room.history_visibility":
+            case "m.room.guest_access":
+            case "m.room.topic":
+            case "m.room.avatar":
+            case "m.bridge":
+            case "uk.half-shot.bridge":
                 return undefined;
+
+            // Unknown events are rendered as a placeholder so users notice that
+            // there is something that they are missing. Ideally, all events
+            // are either added to the "safe-to-ignore" list above, or rendered
+            // with proper tile implementations.
+            default:
+                return UnknownEventTile;
         }
     }
 }

src/platform/web/ui/session/room/common.ts

@@ -27,6 +27,7 @@ import {GapView} from "./timeline/GapView.js";
 import {CallTileView} from "./timeline/CallTileView";
 import {DateHeaderView} from "./timeline/DateHeaderView";
 import {VerificationTileView} from "./timeline/VerificationTileView";
+import {UnknownEventView} from "./timeline/UnknownEventView";
 import type {TileViewConstructor} from "./TimelineView";
 
 export function viewClassForTile(vm: ITile): TileViewConstructor {
@@ -56,6 +57,8 @@ export function viewClassForTile(vm: ITile): TileViewConstructor {
             return DateHeaderView;
         case TileShape.Verification:
             return VerificationTileView;
+        case TileShape.UnknownEvent:
+            return UnknownEventView;
         default:
             throw new Error(`Tiles of shape "${vm.shape}" are not supported, check the tileClassForEntry function in the view model`);
     }

src/platform/web/ui/session/room/timeline/UnknownEventView.js

@@ -0,0 +1,41 @@
+/*
+Copyright 2020 Bruno Windels <[email protected]>
+Copyright 2024 Mirian Margiani <[email protected]>
+
+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.
+*/
+
+import {BaseMessageView} from "./BaseMessageView.js";
+import {Menu} from "../../../general/Menu.js";
+
+export class UnknownEventView extends BaseMessageView {
+    render(t, vm) {
+        if (vm.displayName && vm.avatarUrl) {
+            super.render(t, vm);
+        } else {
+            return t.li({
+                className: "AnnouncementView",
+                'data-event-id': vm.eventId
+            }, t.div(vm => vm.details));
+        }
+    }
+
+    renderMessageBody(t) {
+        return t.p({className: "Timeline_messageBody statusMessage"}, vm => vm.details);
+    }
+
+    createMenuOptions(vm) {
+        const options = super.createMenuOptions(vm);
+        return options;
+    }
+}