Add support for customizing AddUsersView (#911)

Author: martinmitrevski

CHANGELOG.md

@@ -3,7 +3,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 # Upcoming
 
-### 🔄 Changed
+### ✅ Added
+- Add support for customizing AddUsersView [#911)(https://github.com/GetStream/stream-chat-swiftui/pull/911)
 
 # [4.84.0](https://github.com/GetStream/stream-chat-swiftui/releases/tag/4.84.0)
 _August 07, 2025_

Sources/StreamChatSwiftUI/ChatChannel/ChannelInfo/AddUsersView.swift

@@ -92,3 +92,12 @@ public struct AddUsersView<Factory: ViewFactory>: View {
         .padding()
     }
 }
+
+/// Options used in the add users view.
+public struct AddUsersOptions {
+    public let loadedUsers: [ChatUser]
+    
+    public init(loadedUsers: [ChatUser]) {
+        self.loadedUsers = loadedUsers
+    }
+}

Sources/StreamChatSwiftUI/ChatChannel/ChannelInfo/ChatChannelInfoView.swift

@@ -124,9 +124,9 @@ public struct ChatChannelInfoView<Factory: ViewFactory>: View, KeyboardReadable
                         .accessibilityAction {
                             viewModel.addUsersShown = false
                         }
-                    AddUsersView(
-                        factory: factory,
-                        loadedUserIds: viewModel.participants.map(\.id),
+                    
+                    factory.makeAddUsersView(
+                        options: .init(loadedUsers: viewModel.participants.map(\.chatUser)),
                         onUserTap: viewModel.addUserTapped(_:)
                     )
                 }

Sources/StreamChatSwiftUI/DefaultViewFactory.swift

@@ -1143,6 +1143,13 @@ extension ViewFactory {
     public func makeThreadListDividerItem() -> some View {
         Divider()
     }
+    
+    public func makeAddUsersView(
+        options: AddUsersOptions,
+        onUserTap: @escaping (ChatUser) -> Void
+    ) -> some View {
+        AddUsersView(loadedUserIds: options.loadedUsers.map(\.id), onUserTap: onUserTap)
+    }
 }
 
 /// Default class conforming to `ViewFactory`, used throughout the SDK.

Sources/StreamChatSwiftUI/ViewFactory.swift

@@ -1171,4 +1171,15 @@ public protocol ViewFactory: AnyObject {
     associatedtype ThreadListDividerItem: View
     /// Creates the thread list divider item.
     func makeThreadListDividerItem() -> ThreadListDividerItem
+    
+    associatedtype AddUsersViewType: View
+    /// Creates a view for adding users to a chat or channel.
+    /// - Parameters:
+    ///   - options: Configuration options for the "add users" view, such as loaded user ids.
+    ///   - onUserTap: A closure that is called when a `ChatUser` is tapped in the list.
+    /// - Returns: The view shown in the add users slot.
+    func makeAddUsersView(
+        options: AddUsersOptions,
+        onUserTap: @escaping (ChatUser) -> Void
+    ) -> AddUsersViewType
 }

StreamChatSwiftUITests/Tests/Utils/ViewFactory_Tests.swift

@@ -1029,6 +1029,20 @@ class ViewFactory_Tests: StreamChatTestCase {
         // Then
         XCTAssert(view is GalleryHeaderView)
     }
+    
+    func test_viewFactory_makeAddUsersView() {
+        // Given
+        let viewFactory = DefaultViewFactory.shared
+        
+        // When
+        let view = viewFactory.makeAddUsersView(
+            options: .init(loadedUsers: []),
+            onUserTap: { _ in }
+        )
+        
+        // Then
+        XCTAssert(view is AddUsersView<DefaultViewFactory>)
+    }
 }
 
 extension ChannelAction: Equatable {