Add view factory method for customising MessageView

CHANGELOG.md

@@ -13,6 +13,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Add `Utils.originalTranslationsStore` to keep track of messages that should show the original text [#815](https://github.com/GetStream/stream-chat-swiftui/pull/815)
 - Add `ViewFactory.makeGalleryHeaderView` for customising header view in `GalleryView` [#837](https://github.com/GetStream/stream-chat-swiftui/pull/837)
 - Add `ViewFactory.makeVideoPlayerHeaderView` for customising header view in `VideoPlayerView` [#837](https://github.com/GetStream/stream-chat-swiftui/pull/837)
+- Add `ViewFactory.makeMessageView` for customising `MessageView` [#841](https://github.com/GetStream/stream-chat-swiftui/pull/841)
 ### 🐞 Fixed
 - Fix swipe to reply enabled when quoting a message is disabled [#824](https://github.com/GetStream/stream-chat-swiftui/pull/824)
 - Fix mark unread action not removed when read events are disabled [#823](https://github.com/GetStream/stream-chat-swiftui/pull/823)

Sources/StreamChatSwiftUI/ChatChannel/MessageList/MessageContainerView.swift

@@ -99,9 +99,8 @@ public struct MessageContainerView<Factory: ViewFactory>: View {
                         )
                     }
 
-                    MessageView(
-                        factory: factory,
-                        message: message,
+                    factory.makeMessageView(
+                        for: message,
                         contentWidth: contentWidth,
                         isFirst: showsAllInfo,
                         scrolledId: $scrolledId

Sources/StreamChatSwiftUI/DefaultViewFactory.swift

@@ -345,6 +345,21 @@ extension ViewFactory {
         )
     }
 
+    public func makeMessageView(
+        for message: ChatMessage,
+        contentWidth: CGFloat,
+        isFirst: Bool,
+        scrolledId: Binding<String?>
+    ) -> some View {
+        MessageView(
+            factory: self,
+            message: message,
+            contentWidth: contentWidth,
+            isFirst: isFirst,
+            scrolledId: scrolledId
+        )
+    }
+
     public func makeMessageTextView(
         for message: ChatMessage,
         isFirst: Bool,

Sources/StreamChatSwiftUI/ViewFactory.swift

@@ -331,6 +331,21 @@ public protocol ViewFactory: AnyObject {
         onLongPress: @escaping (MessageDisplayInfo) -> Void,
         isLast: Bool
     ) -> MessageContainerViewType
+
+    associatedtype MessageViewType: View
+    /// Creates the message view.
+    /// - Parameters:
+    ///  - message: the chat message.
+    ///  - contentWidth: the available width for the message.
+    ///  - isFirst: whether it is first in the group (latest creation date).
+    ///  - scrolledId: binding of the currently scrolled id. Use it to force scrolling to the particular message.
+    /// - Returns: view shown in the message slot.
+    func makeMessageView(
+        for message: ChatMessage,
+        contentWidth: CGFloat,
+        isFirst: Bool,
+        scrolledId: Binding<String?>
+    ) -> MessageViewType
 
     associatedtype MessageTextViewType: View
     /// Creates the message text view.

StreamChatSwiftUITests/Tests/Utils/ViewFactory_Tests.swift

@@ -167,6 +167,22 @@ class ViewFactory_Tests: StreamChatTestCase {
         // Then
         XCTAssert(view is DefaultChannelHeaderModifier<DefaultViewFactory>)
     }
+
+    func test_viewFactory_makeMessageView() {
+        // Given
+        let viewFactory = DefaultViewFactory.shared
+
+        // When
+        let view = viewFactory.makeMessageView(
+            for: message,
+            contentWidth: 300,
+            isFirst: true,
+            scrolledId: .constant(nil)
+        )
+
+        // Then
+        XCTAssert(view is MessageView<DefaultViewFactory>)
+    }
 
     func test_viewFactory_makeMessageTextView() {
         // Given