Support for editing custom attachments

Author: martinmitrevski

Sources/StreamChatSwiftUI/ChatChannel/Composer/ComposerConfig.swift

@@ -2,6 +2,7 @@
 // Copyright © 2023 Stream.io Inc. All rights reserved.
 //
 
+import StreamChat
 import SwiftUI
 
 /// Config for customizing the composer.
@@ -13,20 +14,27 @@ public struct ComposerConfig {
     public var inputFont: UIFont
     public var adjustMessageOnSend: (String) -> (String)
     public var adjustMessageOnRead: (String) -> (String)
+    public var attachmentPayloadConverter: (ChatMessage) -> [AnyAttachmentPayload]
 
     public init(
         inputViewMinHeight: CGFloat = 38,
         inputViewMaxHeight: CGFloat = 76,
         inputViewCornerRadius: CGFloat = 20,
         inputFont: UIFont = UIFont.preferredFont(forTextStyle: .body),
         adjustMessageOnSend: @escaping (String) -> (String) = { $0 },
-        adjustMessageOnRead: @escaping (String) -> (String) = { $0 }
+        adjustMessageOnRead: @escaping (String) -> (String) = { $0 },
+        attachmentPayloadConverter: @escaping (ChatMessage) -> [AnyAttachmentPayload] = ComposerConfig.defaultAttachmentPayloadConverter
     ) {
         self.inputViewMinHeight = inputViewMinHeight
         self.inputViewMaxHeight = inputViewMaxHeight
         self.inputViewCornerRadius = inputViewCornerRadius
         self.inputFont = inputFont
         self.adjustMessageOnSend = adjustMessageOnSend
         self.adjustMessageOnRead = adjustMessageOnRead
+        self.attachmentPayloadConverter = attachmentPayloadConverter
+    }
+    
+    public static var defaultAttachmentPayloadConverter: (ChatMessage) -> [AnyAttachmentPayload] = { message in
+        message.allAttachments.toAnyAttachmentPayload()
     }
 }

Sources/StreamChatSwiftUI/ChatChannel/Composer/MessageComposerViewModel.swift

@@ -471,7 +471,7 @@ open class MessageComposerViewModel: ObservableObject {
 
         messageController.editMessage(
             text: adjustedText,
-            attachments: message.allAttachments.toAnyAttachmentPayload()
+            attachments: utils.composerConfig.attachmentPayloadConverter(message)
         ) { [weak self] error in
             if error != nil {
                 self?.errorShown = true