Add the maxGalleryAssetsCount to the composer config (#1053)

Author: sheep-q

CHANGELOG.md

@@ -4,6 +4,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 # Upcoming
 
 ### ✅ Added
+- Add the `maxGalleryAssetsCount` to the composer config [#1053](https://github.com/GetStream/stream-chat-swiftui/pull/1053)
 - Expose `QuotedMessageViewContainer` [#1056](https://github.com/GetStream/stream-chat-swiftui/pull/1056)
 - Add `QuotedMessageContentView` and `ViewFactory.makeQuotedMessageContentView()` [#1056](https://github.com/GetStream/stream-chat-swiftui/pull/1056)
 - Allow customizing the attachment size and avatar size of the quoted message view [#1056](https://github.com/GetStream/stream-chat-swiftui/pull/1056)

Sources/StreamChatSwiftUI/ChatChannel/Composer/ComposerConfig.swift

@@ -13,6 +13,7 @@ public struct ComposerConfig {
     public var inputViewCornerRadius: CGFloat
     public var inputFont: UIFont
     public var gallerySupportedTypes: GallerySupportedTypes
+    public var maxGalleryAssetsCount: Int?
     public var inputPaddingsConfig: PaddingsConfig
     public var adjustMessageOnSend: (String) -> (String)
     public var adjustMessageOnRead: (String) -> (String)
@@ -33,6 +34,7 @@ public struct ComposerConfig {
         inputViewCornerRadius: CGFloat = 20,
         inputFont: UIFont = UIFont.preferredFont(forTextStyle: .body),
         gallerySupportedTypes: GallerySupportedTypes = .imagesAndVideo,
+        maxGalleryAssetsCount: Int? = nil,
         inputPaddingsConfig: PaddingsConfig = .composerInput,
         adjustMessageOnSend: @escaping (String) -> (String) = { $0 },
         adjustMessageOnRead: @escaping (String) -> (String) = { $0 },
@@ -47,6 +49,7 @@ public struct ComposerConfig {
         self.adjustMessageOnRead = adjustMessageOnRead
         self.attachmentPayloadConverter = attachmentPayloadConverter
         self.gallerySupportedTypes = gallerySupportedTypes
+        self.maxGalleryAssetsCount = maxGalleryAssetsCount
         self.inputPaddingsConfig = inputPaddingsConfig
         self.isVoiceRecordingEnabled = isVoiceRecordingEnabled
     }

Sources/StreamChatSwiftUI/ChatChannel/Composer/MessageComposerViewModel.swift

@@ -689,6 +689,9 @@ open class MessageComposerViewModel: ObservableObject {
             fetchOptions.predicate = predicate
         }
         fetchOptions.sortDescriptors = [NSSortDescriptor(key: "creationDate", ascending: false)]
+        if let maxGalleryAssetsCount = utils.composerConfig.maxGalleryAssetsCount {
+            fetchOptions.fetchLimit = maxGalleryAssetsCount
+        }
         let assets = PHAsset.fetchAssets(with: fetchOptions)
         DispatchQueue.main.asyncAfter(deadline: .now() + 0.25) { [weak self] in
             self?.imageAssets = assets