Add trigger to join and view room metrics events #5769

- Added trigger for JoinedRoom event
- Tracking ViewRoom event for rooms and events

Riot/Modules/Analytics/AnalyticsJoinedRoomTrigger.swift

@@ -0,0 +1,50 @@
+// 
+// Copyright 2022 New Vector 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.
+//
+
+import Foundation
+import AnalyticsEvents
+
+@objc enum AnalyticsJoinedRoomTrigger: Int {
+    case unknown
+    case invite
+    case notification
+    case roomDirectory
+    case roomPreview
+    case slashCommand
+    case spaceHierarchy
+    case timeline
+    
+    var trigger: AnalyticsEvent.JoinedRoom.Trigger? {
+        switch self {
+        case .unknown:
+            return nil
+        case .invite:
+            return .Invite
+        case .notification:
+            return .Notification
+        case .roomDirectory:
+            return .RoomDirectory
+        case .roomPreview:
+            return .RoomPreview
+        case .slashCommand:
+            return .SlashCommand
+        case .spaceHierarchy:
+            return .SpaceHierarchy
+        case .timeline:
+            return .Timeline
+        }
+    }
+}