Handle canSendPoll capability when creating polls

CHANGELOG.md

@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ### ✅ Added
 - Allow pasting images to the composer [#797](https://github.com/GetStream/stream-chat-swiftui/pull/797)
+### 🐞 Fixed
+- Fix allowing to send Polls when the current user does not have the capability [#798](https://github.com/GetStream/stream-chat-swiftui/pull/798)
 
 # [4.76.0](https://github.com/GetStream/stream-chat-swiftui/releases/tag/4.76.0)
 _March 31, 2025_

Sources/StreamChatSwiftUI/ChatChannel/Composer/AttachmentPickerView.swift

@@ -170,7 +170,7 @@ public struct AttachmentSourcePickerView: View {
             )
             .accessibilityIdentifier("attachmentPickerCamera")
 
-            if viewModel.channelController.channel?.config.pollsEnabled == true && viewModel.messageController == nil {
+            if viewModel.canSendPoll {
                 AttachmentPickerButton(
                     icon: images.attachmentPickerPolls,
                     pickerType: .polls,

Sources/StreamChatSwiftUI/ChatChannel/Composer/MessageComposerViewModel.swift

@@ -183,7 +183,13 @@ open class MessageComposerViewModel: ObservableObject {
     public var quotedMessage: Binding<ChatMessage?>?
     public var waveformTargetSamples: Int = 100
     public internal(set) var pendingAudioRecording: AddedVoiceRecording?
-
+
+    public var canSendPoll: Bool {
+        channelController.channel?.config.pollsEnabled == true
+            && channelController.channel?.canSendPoll == true
+            && messageController == nil
+    }
+
     internal lazy var audioRecorder: AudioRecording = {
         let audioRecorder = utils.audioRecorder
         audioRecorder.subscribe(self)

StreamChatSwiftUI.xcodeproj/project.pbxproj

@@ -3879,8 +3879,8 @@
 			isa = XCRemoteSwiftPackageReference;
 			repositoryURL = "https://github.com/GetStream/stream-chat-swift.git";
 			requirement = {
-				kind = upToNextMajorVersion;
-				minimumVersion = 4.76.0;
+				branch = develop;
+				kind = branch;
 			};
 		};
 		E3A1C01A282BAC66002D1E26 /* XCRemoteSwiftPackageReference "sentry-cocoa" */ = {

StreamChatSwiftUITests/Tests/ChatChannel/MessageComposerViewModel_Tests.swift

@@ -573,7 +573,92 @@ class MessageComposerViewModel_Tests: StreamChatTestCase {
         // Then
         XCTAssert(viewModel.mentionedUsers.isEmpty)
     }
-
+
+    func test_messageComposerVM_canSendPoll() {
+        // Given
+        let channelController = makeChannelController()
+        let viewModel = MessageComposerViewModel(
+            channelController: channelController,
+            messageController: nil
+        )
+
+        // When
+        let channelConfig = ChannelConfig(pollsEnabled: true)
+        channelController.channel_mock = .mock(
+            cid: .unique,
+            config: channelConfig,
+            ownCapabilities: [.sendPoll]
+        )
+
+        // Then
+        XCTAssertTrue(viewModel.canSendPoll)
+    }
+
+    func test_messageComposerVM_canSendPoll_whenDoesNotHaveCapability() {
+        // Given
+        let channelController = makeChannelController()
+        let viewModel = MessageComposerViewModel(
+            channelController: channelController,
+            messageController: nil
+        )
+
+        // When
+        let channelConfig = ChannelConfig(pollsEnabled: true)
+        channelController.channel_mock = .mock(
+            cid: .unique,
+            config: channelConfig,
+            ownCapabilities: [.banChannelMembers]
+        )
+
+        // Then
+        XCTAssertFalse(viewModel.canSendPoll)
+    }
+
+    func test_messageComposerVM_canSendPoll_whenNotEnabled() {
+        // Given
+        let channelController = makeChannelController()
+        let viewModel = MessageComposerViewModel(
+            channelController: channelController,
+            messageController: nil
+        )
+
+        // When
+        let channelConfig = ChannelConfig(pollsEnabled: false)
+        channelController.channel_mock = .mock(
+            cid: .unique,
+            config: channelConfig,
+            ownCapabilities: [.sendPoll]
+        )
+
+        // Then
+        XCTAssertFalse(viewModel.canSendPoll)
+    }
+
+    func test_messageComposerVM_canSendPoll_whenInsideThread() {
+        // Given
+        let channelController = makeChannelController()
+        let messageController = ChatMessageControllerSUI_Mock.mock(
+            chatClient: chatClient,
+            cid: .unique,
+            messageId: .unique
+        )
+        let viewModel = MessageComposerViewModel(
+            channelController: channelController,
+            messageController: messageController
+        )
+
+        // When
+        let channelConfig = ChannelConfig(pollsEnabled: true)
+        channelController.channel_mock = .mock(
+            cid: .unique,
+            config: channelConfig,
+            ownCapabilities: [.sendPoll]
+        )
+
+        // Then
+        XCTAssertFalse(viewModel.canSendPoll)
+    }
+
     func test_addedAsset_extraData() {
         // Given
         let image = UIImage(systemName: "person")!