Allow Element Call to send call notifications (#30404)

* Allow Element Call to send call notifications

Currently Element Web is responsible for sending the call notification event, but this is planned to be changed soon. As of the upcoming Element Call 0.14.0 release, it will request the capability to send call notifications itself, and we should auto-approve this capability.

* Add reaction capability missing from test

Element Call does in fact request this one.

Author: robintown

src/stores/widgets/StopGapWidgetDriver.ts

@@ -168,17 +168,18 @@ export class StopGapWidgetDriver extends WidgetDriver {
                 WidgetEventCapability.forStateEvent(EventDirection.Receive, EventType.RoomCreate).raw,
             );
 
+            const sendRoomEvents = [EventType.CallNotify, EventType.RTCNotification];
             const sendRecvRoomEvents = [
                 "io.element.call.encryption_keys",
                 "org.matrix.rageshake_request",
                 EventType.Reaction,
                 EventType.RoomRedaction,
                 "io.element.call.reaction",
             ];
-            for (const eventType of sendRecvRoomEvents) {
+            for (const eventType of [...sendRoomEvents, ...sendRecvRoomEvents])
                 this.allowedCapabilities.add(WidgetEventCapability.forRoomEvent(EventDirection.Send, eventType).raw);
+            for (const eventType of sendRecvRoomEvents)
                 this.allowedCapabilities.add(WidgetEventCapability.forRoomEvent(EventDirection.Receive, eventType).raw);
-            }
 
             const sendRecvToDevice = [
                 EventType.CallInvite,

test/unit-tests/stores/widgets/StopGapWidgetDriver-test.ts

@@ -92,12 +92,16 @@ describe("StopGapWidgetDriver", () => {
             "m.always_on_screen",
             "town.robin.msc3846.turn_servers",
             "org.matrix.msc2762.timeline:!1:example.org",
+            "org.matrix.msc2762.send.event:org.matrix.msc4075.call.notify",
+            "org.matrix.msc2762.send.event:org.matrix.msc4075.rtc.notification",
             "org.matrix.msc2762.send.event:org.matrix.rageshake_request",
             "org.matrix.msc2762.receive.event:org.matrix.rageshake_request",
             "org.matrix.msc2762.send.event:m.reaction",
             "org.matrix.msc2762.receive.event:m.reaction",
             "org.matrix.msc2762.send.event:m.room.redaction",
             "org.matrix.msc2762.receive.event:m.room.redaction",
+            "org.matrix.msc2762.send.event:io.element.call.reaction",
+            "org.matrix.msc2762.receive.event:io.element.call.reaction",
             "org.matrix.msc2762.receive.state_event:m.room.create",
             "org.matrix.msc2762.receive.state_event:m.room.name",
             "org.matrix.msc2762.receive.state_event:m.room.member",