Rename properties and sort members in advance.

ElementX/Sources/Screens/RoomMemberListScreen/RoomMembersListScreenModels.swift

@@ -34,7 +34,7 @@ nonisolated struct RoomMemberListScreenEntry: Equatable {
     let member: RoomMemberDetails
     let verificationState: UserIdentityVerificationState
     /// Whether the member is currently joined to the room's active MatrixRTC call (e.g. Element Call).
-    var isInCall = false
+    var isActiveRoomCallParticipant = false
 }
 
 struct RoomMembersListScreenViewState: BindableState {

ElementX/Sources/Screens/RoomMemberListScreen/RoomMembersListScreenViewModel.swift

@@ -99,7 +99,7 @@ class RoomMembersListScreenViewModel: RoomMembersListScreenViewModelType, RoomMe
                 hideLoadingIndicator(Self.updateStateLoadingIndicatorIdentifier)
             }
             
-            let members = members.sorted()
+            let members = members.sorted(prioritisingRoomCallParticipants: roomProxy.infoPublisher.value.activeRoomCallParticipants)
             let roomMembersDetails = await buildMembersDetails(members: members)
             self.members = members
             self.currentUserProxy = members.first { $0.userID == roomProxy.ownUserID }
@@ -127,7 +127,7 @@ class RoomMembersListScreenViewModel: RoomMembersListScreenViewModelType, RoomMe
         let isEncrypted = roomProxy.infoPublisher.value.isEncrypted
         let activeRoomCallParticipants = Set(roomProxy.infoPublisher.value.activeRoomCallParticipants)
         
-        let membersDetails: RoomMembersDetails = await Task.detached { [weak self] in
+        return await Task.detached { [weak self] in
             // accessing RoomMember's properties is very slow. We need to do it in a background thread.
             var invitedMembers: [RoomMemberListScreenEntry] = .init()
             var joinedMembers: [RoomMemberListScreenEntry] = .init()
@@ -138,15 +138,15 @@ class RoomMembersListScreenViewModel: RoomMembersListScreenViewModelType, RoomMe
                 if isEncrypted, let fetchedState = await self?.userIdentityVerificationState(for: member.userID) {
                     verificationState = fetchedState
                 }
-                let isInCall = activeRoomCallParticipants.contains(member.userID)
+                let isActiveRoomCallParticipant = activeRoomCallParticipants.contains(member.userID)
                 
                 switch member.membership {
                 case .invite:
-                    invitedMembers.append(.init(member: .init(withProxy: member), verificationState: verificationState, isInCall: isInCall))
+                    invitedMembers.append(.init(member: .init(withProxy: member), verificationState: verificationState, isActiveRoomCallParticipant: isActiveRoomCallParticipant))
                 case .join:
-                    joinedMembers.append(.init(member: .init(withProxy: member), verificationState: verificationState, isInCall: isInCall))
+                    joinedMembers.append(.init(member: .init(withProxy: member), verificationState: verificationState, isActiveRoomCallParticipant: isActiveRoomCallParticipant))
                 case .ban:
-                    bannedMembers.append(.init(member: .init(withProxy: member), verificationState: verificationState, isInCall: isInCall))
+                    bannedMembers.append(.init(member: .init(withProxy: member), verificationState: verificationState, isActiveRoomCallParticipant: isActiveRoomCallParticipant))
                 default:
                     continue
                 }
@@ -157,10 +157,6 @@ class RoomMembersListScreenViewModel: RoomMembersListScreenViewModelType, RoomMe
                          bannedMembers: bannedMembers.sorted { $0.member.id.localizedStandardCompare($1.member.id) == .orderedAscending }) // Re-sort ignoring display name.
         }
         .value
-        
-        return .init(invitedMembers: membersDetails.invitedMembers,
-                     joinedMembers: membersDetails.joinedMembers.filter(\.isInCall) + membersDetails.joinedMembers.filter { !$0.isInCall },
-                     bannedMembers: membersDetails.bannedMembers)
     }
     
     /// The client proxy isn't Sendable, fetch identities through this helper so

ElementX/Sources/Screens/RoomMemberListScreen/View/RoomMembersListScreen.swift

@@ -171,7 +171,7 @@ struct RoomMembersListScreen_Previews: PreviewProvider, TestablePreview {
     static let adminViewModel = makeViewModel(isAdmin: true, initialMode: .members)
     static let bannedViewModel = makeViewModel(isAdmin: true, initialMode: .banned)
     static let emptyBannedViewModel = makeViewModel(withBanned: false, isAdmin: false, initialMode: .members)
-    static let adminInCallViewModel = makeViewModel(withInCall: true, isAdmin: true)
+    static let activeRoomCallViewModel = makeViewModel(hasActiveRoomCall: true, isAdmin: true)
     
     static var previews: some View {
         ElementNavigationStack {
@@ -207,12 +207,12 @@ struct RoomMembersListScreen_Previews: PreviewProvider, TestablePreview {
         .previewDisplayName("Admin: Banned")
         
         ElementNavigationStack {
-            RoomMembersListScreen(context: adminInCallViewModel.context)
+            RoomMembersListScreen(context: activeRoomCallViewModel.context)
         }
-        .snapshotPreferences(expect: adminInCallViewModel.context.$viewState.map { state in
+        .snapshotPreferences(expect: activeRoomCallViewModel.context.$viewState.map { state in
             state.canBanUsers == true
         })
-        .previewDisplayName("Admin: In-Call")
+        .previewDisplayName("Active Room Call")
         
         ElementNavigationStack {
             RoomMembersListScreen(context: emptyBannedViewModel.context)
@@ -224,7 +224,7 @@ struct RoomMembersListScreen_Previews: PreviewProvider, TestablePreview {
     
     static func makeViewModel(withInvites: Bool = false,
                               withBanned: Bool = true,
-                              withInCall: Bool = false,
+                              hasActiveRoomCall: Bool = false,
                               isAdmin: Bool = false,
                               initialMode: RoomMembersListScreenMode = .members) -> RoomMembersListScreenViewModel {
         let mockAdmin = RoomMemberProxyMock.mockAdmin
@@ -238,8 +238,7 @@ struct RoomMembersListScreen_Previews: PreviewProvider, TestablePreview {
             mockAdmin,
             .mockCreator,
             .mockOwner,
-            .mockModerator,
+            .mockModerator
-            .mockFrank
         ]
         
         if withBanned {
@@ -250,9 +249,11 @@ struct RoomMembersListScreen_Previews: PreviewProvider, TestablePreview {
             members.append(.mockInvited)
         }
         
-        let activeRoomCallParticipants = withInCall ? [RoomMemberProxyMock.mockAlice.userID,
+        let activeRoomCallParticipants: [String] = if hasActiveRoomCall {
-                                                       RoomMemberProxyMock.mockOwner.userID,
+            [RoomMemberProxyMock.mockAlice.userID, RoomMemberProxyMock.mockOwner.userID, mockAdmin.userID]
-                                                       mockAdmin.userID] : []
+        } else {
+            []
+        }
         
         let clientProxyMock = ClientProxyMock(.init())
         clientProxyMock.userIdentityForFallBackToServerClosure = { userID, _ in

ElementX/Sources/Screens/RoomMemberListScreen/View/RoomMembersListScreenMemberCell.swift

@@ -56,7 +56,7 @@ struct RoomMembersListScreenMemberCell: View {
                             .foregroundStyle(.compound.textSecondary)
                     }
                     
-                    if listEntry.isInCall {
+                    if listEntry.isActiveRoomCallParticipant {
                         CompoundIcon(\.videoCallSolid, size: .small, relativeTo: .compound.bodyLG)
                             .foregroundStyle(.compound.iconAccentPrimary)
                             .accessibilityLabel(L10n.commonOnACall)
@@ -125,7 +125,7 @@ struct RoomMembersListMemberCell_Previews: PreviewProvider, TestablePreview {
               verificationState: .verificationViolation),
         .init(member: .init(withProxy: RoomMemberProxyMock.mockFrank),
               verificationState: .notVerified,
-              isInCall: true),
+              isActiveRoomCallParticipant: true),
         .init(member: .init(withProxy: RoomMemberProxyMock(with: .init(userID: "@nodisplayname:matrix.org",
                                                                        membership: .join))),
         verificationState: .notVerified),

ElementX/Sources/Services/Room/RoomMember/RoomMemberProxyProtocol.swift

@@ -49,10 +49,15 @@ nonisolated extension RoomMemberProxyProtocol {
 }
 
 nonisolated extension [RoomMemberProxyProtocol] {
-    /// The members, sorted first by power-level, and then alphabetically within each power-level.
+    /// The members, sorted first by call participation, then by power-level, and then alphabetically within each power-level.
-    func sorted() -> Self {
+    func sorted(prioritisingRoomCallParticipants roomCallParticipants: [String] = []) -> Self {
         sorted { lhs, rhs in
-            if lhs.powerLevel != rhs.powerLevel {
+            let lhsIsRoomCallParticipant = roomCallParticipants.contains(lhs.userID)
+            let rhsIsRoomCallParticipant = roomCallParticipants.contains(rhs.userID)
+            
+            return if lhsIsRoomCallParticipant != rhsIsRoomCallParticipant {
+                lhsIsRoomCallParticipant
+            } else if lhs.powerLevel != rhs.powerLevel {
                 lhs.powerLevel > rhs.powerLevel
             } else {
                 lhs.sortingName.localizedStandardCompare(rhs.sortingName) == .orderedAscending

PreviewTests/Sources/__Snapshots__/PreviewTests/roomMembersListMemberCell.iPad-en-GB-0.png

@@ -1,3 +1,3 @@
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-size 172243
+size 181974

PreviewTests/Sources/__Snapshots__/PreviewTests/roomMembersListMemberCell.iPad-pseudo-0.png

@@ -1,3 +1,3 @@
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-size 174277
+size 183929

PreviewTests/Sources/__Snapshots__/PreviewTests/roomMembersListMemberCell.iPhone-en-GB-0.png

@@ -1,3 +1,3 @@
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-size 116931
+size 125566

PreviewTests/Sources/__Snapshots__/PreviewTests/roomMembersListMemberCell.iPhone-pseudo-0.png

@@ -1,3 +1,3 @@
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-size 122379
+size 131231

PreviewTests/Sources/__Snapshots__/PreviewTests/roomMembersListScreen.Active-Room-Call-iPad-en-GB.png

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PreviewTests/Sources/__Snapshots__/PreviewTests/roomMembersListScreen.Active-Room-Call-iPad-pseudo.png

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PreviewTests/Sources/__Snapshots__/PreviewTests/roomMembersListScreen.Active-Room-Call-iPhone-en-GB.png

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PreviewTests/Sources/__Snapshots__/PreviewTests/roomMembersListScreen.Active-Room-Call-iPhone-pseudo.png

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PreviewTests/Sources/__Snapshots__/PreviewTests/roomMembersListScreen.Admin-In-Call-iPad-en-GB.png

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PreviewTests/Sources/__Snapshots__/PreviewTests/roomMembersListScreen.Admin-In-Call-iPad-pseudo.png

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PreviewTests/Sources/__Snapshots__/PreviewTests/roomMembersListScreen.Admin-In-Call-iPhone-en-GB.png

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PreviewTests/Sources/__Snapshots__/PreviewTests/roomMembersListScreen.Admin-In-Call-iPhone-pseudo.png

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UnitTests/Sources/RoomMembersListScreenViewModelTests.swift

@@ -68,7 +68,7 @@ struct RoomMembersListScreenViewModelTests {
         let sortedMembers: [RoomMemberListScreenEntry] = [
             .init(member: .init(withProxy: RoomMemberProxyMock.mockFrank),
                   verificationState: .notVerified,
-                  isInCall: true),
+                  isActiveRoomCallParticipant: true),
             .init(member: .init(withProxy: RoomMemberProxyMock.mockAdmin),
                   verificationState: .notVerified),
             .init(member: .init(withProxy: RoomMemberProxyMock.mockAlice),