Add new screen, composer event method and ui elements

Riot/Modules/Analytics/Analytics.swift

@@ -292,4 +292,13 @@ extension Analytics: MXAnalyticsDelegate {
     func trackContactsAccessGranted(_ granted: Bool) {
         // Do we still want to track this?
     }
+
+    func trackEventComposed(inThread: Bool, isEditing: Bool, isReply: Bool, startsThread: Bool) {
+        let event = AnalyticsEvent.Composer(inThread: inThread,
+                                            isEditing: isEditing,
+                                            isReply: isReply,
+                                            startsThread: startsThread)
+        capture(event: event)
+    }
+
 }

Riot/Modules/Analytics/AnalyticsScreen.swift

@@ -51,6 +51,7 @@ import AnalyticsEvents
     case group
     case myGroups
     case inviteFriends
+    case threadList
     
     /// The screen name reported to the AnalyticsEvent.
     var screenName: AnalyticsEvent.MobileScreen.ScreenName {
@@ -121,6 +122,8 @@ import AnalyticsEvents
             return .MyGroups
         case .inviteFriends:
             return .InviteFriends
+        case .threadList:
+            return .ThreadList
         }
     }
 }

Riot/Modules/Analytics/AnalyticsUIElement.swift

@@ -18,15 +18,24 @@ import AnalyticsEvents
 
 /// A tappable UI element that can be tracked in Analytics.
 @objc enum AnalyticsUIElement: Int {
-    case removeMe
+    case roomThreadListButton
+    case roomThreadSummaryItem
+    case threadListThreadItem
+    case threadListFilterItem
     
     /// The element name reported to the AnalyticsEvent.
     var name: AnalyticsEvent.Interaction.Name {
         switch self {
         // Note: This is a test element that doesn't need to be captured.
         // It can be removed when some elements are added that relate to mobile.
-        case .removeMe:
-            return .WebRoomSettingsLeaveButton
+        case .roomThreadListButton:
+            return .MobileRoomThreadListButton
+        case .roomThreadSummaryItem:
+            return .MobileRoomThreadSummaryItem
+        case .threadListThreadItem:
+            return .MobileThreadListThreadItem
+        case .threadListFilterItem:
+            return .MobileThreadListFilterItem
         }
     }
 }