feat(ui): Refactor new composer

CLAUDE.md

@@ -91,13 +91,13 @@ Full UI package. Key architectural points:
 **Key UI components:**
 - `StreamChannelListView` + `StreamChannelListTile` — channel list using `StreamChannelListController`
 - `StreamMessageListView` — message list with floating date dividers, unread indicators, thread separators
-- `StreamMessageInput` (legacy) / `StreamChatMessageComposer` (new design system) — message composition
+- `StreamMessageInput` (legacy) / `StreamMessageComposer` (new design system) — message composition
 - `StreamMessageWidget` — renders individual messages with attachments, reactions, threads
 - Scroll views in `lib/src/scroll_view/` — generic paged scroll views for channels, threads, members, users, drafts, polls
 
 **New design system components** (`lib/src/components/`):
 - `StreamUserAvatar`, `StreamChannelAvatar`, `StreamUserAvatarGroup` — avatar components; these are chat-domain wrappers around the base components in `stream_core_flutter`
-- `StreamChatMessageComposer` — new composer using `MessageComposerFactory` for custom layouts
+- `StreamMessageComposer` — new composer using `MessageComposerFactory` for custom layouts
 
 **Golden tests:** Use `alchemist` package. Platform goldens used locally, CI goldens used in CI (detected via `CI`/`GITHUB_ACTIONS` env vars). Goldens stored alongside tests in `goldens/` subdirectories.
 

docs/docs_screenshots/test/message_input/stream_message_input_test.dart

@@ -11,7 +11,7 @@ import '../src/mocks.dart';
 Widget _buildMessageInputScaffold({
   required MockClient client,
   required MockChannel channel,
-  StreamMessageInput? messageInput,
+  Widget? messageComposer,
 }) {
   return MaterialApp(
     theme: docsScreenshotsTheme(),
@@ -27,7 +27,7 @@ Widget _buildMessageInputScaffold({
           body: Column(
             children: [
               Expanded(child: Container()),
-              messageInput ?? const StreamMessageInput(),
+              messageComposer ?? StreamMessageComposer(),
             ],
           ),
         ),
@@ -65,8 +65,8 @@ void main() {
   );
 
   goldenTest(
-    'message input default',
-    fileName: 'message_input',
+    'message input with text',
+    fileName: 'message_input_with_text',
     constraints: const BoxConstraints.tightFor(width: 375, height: 100),
     builder: () {
       final client = MockClient();
@@ -81,28 +81,8 @@ void main() {
         channelState: channelState,
       );
 
-      return _buildMessageInputScaffold(client: client, channel: channel);
-    },
-  );
-
-  goldenTest(
-    'message input actions on right',
-    fileName: 'message_input_change_position',
-    constraints: const BoxConstraints.tightFor(width: 375, height: 100),
-    builder: () {
-      final client = MockClient();
-      final clientState = MockClientState();
-      final channel = MockChannel();
-      final channelState = MockChannelState();
-
-      setupMockChannel(
-        client: client,
-        clientState: clientState,
-        channel: channel,
-        channelState: channelState,
-      );
-
-      final controller = StreamMessageInputController();
+      final controller = StreamMessageComposerController();
+      controller.textFieldController.text = 'Hello world!';
 
       return MaterialApp(
         theme: docsScreenshotsTheme(),
@@ -124,7 +104,7 @@ void main() {
               body: Column(
                 children: [
                   const Expanded(child: SizedBox()),
-                  StreamMessageInput(messageInputController: controller),
+                  StreamMessageComposer(controller: controller),
                 ],
               ),
             ),
@@ -151,17 +131,20 @@ void main() {
         channelState: channelState,
       );
 
-      final controller = StreamMessageInputController()
-        ..quotedMessage = Message(
-          id: 'quoted-msg',
-          text: 'This is the original message',
-          user: User(id: 'other-user', name: 'Alice'),
-        );
+      final controller = StreamMessageComposerController(
+        message: Message(
+          quotedMessage: Message(
+            id: 'quoted-msg',
+            text: 'This is the original message',
+            user: User(id: 'other-user', name: 'Alice'),
+          ),
+        ),
+      );
 
       return _buildMessageInputScaffold(
         client: client,
         channel: channel,
-        messageInput: StreamMessageInput(messageInputController: controller),
+        messageComposer: StreamMessageComposer(controller: controller),
       );
     },
   );

docs/docs_screenshots/test/voice_recording/voice_recording_test.dart

@@ -42,7 +42,7 @@ Widget _buildVoiceRecordingMessageInputScaffold({
           body: Column(
             children: [
               Expanded(child: Container()),
-              const StreamMessageInput(enableVoiceRecording: true),
+              StreamMessageComposer(enableVoiceRecording: true),
             ],
           ),
         ),
@@ -111,7 +111,7 @@ Widget _buildVoiceRecordingContextScaffold({
                   ],
                 ),
               ),
-              const StreamMessageInput(enableVoiceRecording: true),
+              StreamMessageComposer(enableVoiceRecording: true),
             ],
           ),
         ),
@@ -214,7 +214,7 @@ void main() {
         child: MessageComposerRecordingLocked(
           audioRecorderController: _makeRecorderController(lockedState),
           feedback: const AudioRecorderFeedback(),
-          messageInputController: StreamMessageInputController(),
+          messageInputController: StreamMessageComposerController(),
           sendMessageCallback: null,
           state: lockedState,
         ),
@@ -246,7 +246,7 @@ void main() {
         child: MessageComposerRecordingStopped(
           audioRecorderController: _makeRecorderController(stoppedState),
           feedback: const AudioRecorderFeedback(),
-          messageInputController: StreamMessageInputController(),
+          messageInputController: StreamMessageComposerController(),
           sendMessageCallback: null,
           recordingState: stoppedState,
         ),

migrations/redesign/message_composer.md

@@ -8,7 +8,7 @@ This guide covers the migration for the message composer components in the Strea
 
 - [Overview](#overview)
 - [StreamMessageInput](#streammessageinput)
-- [StreamChatMessageComposer (new)](#streamchatmessagecomposer-new)
+- [StreamMessageComposer (new)](#streamchatmessagecomposer-new)
 - [Message Input Placeholder API](#message-input-placeholder-api)
 - [Attachment Customization](#attachment-customization)
 - [Migration Checklist](#migration-checklist)
@@ -22,9 +22,9 @@ There are two distinct composer components with different responsibilities:
 | Component | Responsibility |
 |-----------|---------------|
 | `StreamMessageInput` | Full-featured widget: handles sending, editing, attachments, autocomplete, mentions, commands, OG previews, voice recording flow, etc. |
-| `StreamChatMessageComposer` | UI-only component: renders the composer layout using design system primitives. No business logic. |
+| `StreamMessageComposer` | UI-only component: renders the composer layout using design system primitives. No business logic. |
 
-`StreamMessageInput` wraps `StreamChatMessageComposer` for its visual layer. If you are using `StreamMessageInput` today, it remains the right choice — it is not deprecated. `StreamChatMessageComposer` exists for cases where you want to build your own message-sending logic and use the new design system UI.
+`StreamMessageInput` wraps `StreamMessageComposer` for its visual layer. If you are using `StreamMessageInput` today, it remains the right choice — it is not deprecated. `StreamMessageComposer` exists for cases where you want to build your own message-sending logic and use the new design system UI.
 
 ---
 
@@ -88,7 +88,7 @@ Many parameters that existed in older versions of `StreamMessageInput` have been
 
 #### Layout and visual parameters
 
-These parameters have been removed. The composer layout is now fully owned by `StreamChatMessageComposer` and its sub-components, customizable via `StreamComponentFactory`.
+These parameters have been removed. The composer layout is now fully owned by `StreamMessageComposer` and its sub-components, customizable via `StreamComponentFactory`.
 
 | Removed parameter | Migration path |
 |-------------------|---------------|
@@ -139,13 +139,13 @@ These parameters have been removed. Attachment rendering in the composer input h
 
 Previously, the attachment button was always rendered (though inactive) when `disableAttachments: true` was set. The button is now fully hidden (removed from the layout) when no attachment callback is wired up. When you pass `disableAttachments: true` to `StreamMessageInput`, the attachment button no longer appears at all.
 
-If you are using `StreamChatMessageComposer` directly, the button hides when `onAttachmentButtonPressed` is `null`.
+If you are using `StreamMessageComposer` directly, the button hides when `onAttachmentButtonPressed` is `null`.
 
 ---
 
-## StreamChatMessageComposer (new)
+## StreamMessageComposer (new)
 
-`StreamChatMessageComposer` is a pure UI component from the new design system. It renders the composer layout but contains no message-sending logic — your code is responsible for wiring up the controller and callbacks.
+`StreamMessageComposer` is a pure UI component from the new design system. It renders the composer layout but contains no message-sending logic — your code is responsible for wiring up the controller and callbacks.
 
 Use this when you want the new design system visuals with custom business logic. If you want the full out-of-the-box experience (send, edit, attachments, mentions, commands, etc.), use `StreamMessageInput` instead.
 
@@ -202,12 +202,10 @@ StreamComponentFactory(
 
 ## Message Input Placeholder API
 
-The input placeholder text (the dimmed text shown inside the input field when it is empty) is now driven by a sealed-class hierarchy that adapts to the current input state. The previous `HintType` enum and `HintGetter` typedef have been removed, and the customization hook on `StreamMessageInput` is now called `placeholderBuilder`.
+The input placeholder text (the dimmed text shown inside the input field when it is empty) is now driven by a sealed-class hierarchy that adapts to the current input state. The previous `HintType` enum and `HintGetter` typedef have been removed, and the customization hook on `StreamMessageComposer` is now called `placeholderBuilder`.
 
 The new placeholder types live in `lib/src/message_input/message_input_placeholder.dart` and are re-exported from `package:stream_chat_flutter/stream_chat_flutter.dart`.
 
-> **Layered model.** The placeholder *resolution* (state machine that turns controller state into a string) lives on `StreamMessageInput`, the higher-level full-featured widget. The lower-level `StreamChatMessageComposer` design-system component stays a pure UI primitive and accepts a plain `String placeholder` — see [StreamChatMessageComposer (new)](#streamchatmessagecomposer-new). If you build directly on `StreamChatMessageComposer`, call `MessageInputPlaceholder.resolve(controller)` and your own builder yourself, then pass the resulting string in.
-
 ### What was removed
 
 | Removed | Replacement |
@@ -216,8 +214,8 @@ The new placeholder types live in `lib/src/message_input/message_input_placehold
 | `typedef HintGetter = String? Function(BuildContext, HintType, Command?)` | `typedef MessageInputPlaceholderBuilder = String? Function(BuildContext, MessageInputPlaceholder)` |
 | `HintType resolveMessageInputHintType(controller)` | `MessageInputPlaceholder.resolve(controller)` factory |
 | `Command? resolveActiveMessageInputCommand(context, controller)` | Removed. Use `controller.message.command` (a `String?`) directly. The SDK no longer looks up the full `Command` object from the channel config when resolving the placeholder. |
-| `String? defaultMessageInputHintGetter(...)` | Removed from the public API. The default behaviour is now baked into `StreamMessageInput.placeholderBuilder`'s default value. To customize, supply your own builder with an exhaustive `switch` over [`MessageInputPlaceholder`](#sealed-class-state-shape). |
-| `StreamMessageInput.hintGetter` | `StreamMessageInput.placeholderBuilder` |
+| `String? defaultMessageInputHintGetter(...)` | Removed from the public API. The default behaviour is now baked into `StreamMessageComposer.placeholderBuilder`'s default value. To customize, supply your own builder with an exhaustive `switch` over [`MessageInputPlaceholder`](#sealed-class-state-shape). |
+| `StreamMessageInput.hintGetter` | `StreamMessageComposer.placeholderBuilder` |
 
 ### Behavior change: precedence
 
@@ -257,15 +255,15 @@ Each case carries the contextual data relevant to that input state. Pattern-matc
 | Case | Field | Type | Description |
 |------|-------|------|-------------|
 | `WriteMessagePlaceholder` | `isEditing` | `bool` | `true` when the input is editing an existing message instead of composing a new one. Useful for swapping the placeholder while editing. |
-| `SlowModePlaceholder` | `cooldownTimeOut` | `int` | Remaining slow-mode cooldown in seconds. Mirrors `StreamMessageInputController.cooldownTimeOut`. |
+| `SlowModePlaceholder` | `cooldownTimeOut` | `int` | Remaining slow-mode cooldown in seconds. Mirrors `StreamMessageComposerController.cooldownTimeOut`. |
 | `SlowModePlaceholder` | `cooldown` | `Duration` | Convenience getter wrapping `cooldownTimeOut` for formatting timer strings. |
 | `CommandPlaceholder` | `command` | `String` | Active command name (e.g. `'giphy'`, `'mute'`, `'ban'`, or any backend-defined command). |
 | `AttachmentsPlaceholder` | `attachments` | `List<Attachment>` | Pending attachments held by the input. OG link previews are still included — filter via `Attachment.ogScrapeUrl` if you only want user-added ones. |
 
 Example using the new fields (note that the sealed type forces an exhaustive switch — every case must be handled):
 
 ```dart
-StreamMessageInput(
+StreamMessageComposer(
   placeholderBuilder: (context, placeholder) {
     final translations = context.translations;
     return switch (placeholder) {
@@ -310,7 +308,7 @@ StreamMessageInput(
 **After:**
 
 ```dart
-StreamMessageInput(
+StreamMessageComposer(
   placeholderBuilder: (context, placeholder) {
     return switch (placeholder) {
       SlowModePlaceholder() => 'Slow mode is on',
@@ -327,7 +325,7 @@ StreamMessageInput(
 For backend-defined custom commands, pattern-match the relevant `CommandPlaceholder.command` values and use the SDK's localized labels for everything else:
 
 ```dart
-StreamMessageInput(
+StreamMessageComposer(
   placeholderBuilder: (context, placeholder) {
     final translations = context.translations;
     return switch (placeholder) {
@@ -429,8 +427,8 @@ The following public widgets are provided as building blocks for custom attachme
 - [ ] Replace attachment list builder params (`attachmentListBuilder`, `fileAttachmentListBuilder`, `mediaAttachmentListBuilder`, `voiceRecordingAttachmentListBuilder`) with the `messageComposerAttachmentList` builder in `StreamComponentFactory`
 - [ ] Replace attachment item builder params (`fileAttachmentBuilder`, `mediaAttachmentBuilder`, `voiceRecordingAttachmentBuilder`) with the `messageComposerAttachment` builder in `StreamComponentFactory`
 - [ ] Replace `quotedMessageBuilder` / `quotedMessageAttachmentThumbnailBuilders` with `messageComposerInputHeader` or `messageComposerAttachment` overrides in `StreamComponentFactory`
-- [ ] If adopting `StreamChatMessageComposer` directly, wire up your own send/attachment logic via `onSendPressed` and `onAttachmentButtonPressed`
+- [ ] If adopting `StreamMessageComposer` directly, wire up your own send/attachment logic via `onSendPressed` and `onAttachmentButtonPressed`
 - [ ] Move any composer UI customizations to `StreamComponentFactory`
-- [ ] Rename `StreamMessageInput.hintGetter` to `placeholderBuilder` and rewrite the callback to switch over `MessageInputPlaceholder` cases (`SlowModePlaceholder`, `CommandPlaceholder`, `AttachmentsPlaceholder`, `WriteMessagePlaceholder`) instead of the removed `HintType` enum. If you build directly on `StreamChatMessageComposer`, compute the placeholder string yourself via `MessageInputPlaceholder.resolve(controller)` and pass it via the `placeholder: String` parameter.
+- [ ] Rename `StreamMessageInput.hintGetter` to `StreamMessageComposer.placeholderBuilder` and rewrite the callback to switch over `MessageInputPlaceholder` cases (`SlowModePlaceholder`, `CommandPlaceholder`, `AttachmentsPlaceholder`, `WriteMessagePlaceholder`) instead of the removed `HintType` enum.
 - [ ] Review the new placeholder precedence (`slowMode > command > attachments > writeMessage`) and override `placeholderBuilder` if you need to preserve the old order
 - [ ] Add command-specific placeholders for any backend-defined commands you ship by pattern-matching on `CommandPlaceholder.command` in your `placeholderBuilder`

packages/stream_chat_flutter/CHANGELOG.md

@@ -4,6 +4,10 @@
 
 - Replaced `StreamMessageInput.hintGetter` with `placeholderBuilder` over a sealed `MessageInputPlaceholder`.
   See [`migrations/redesign/message_composer.md`](../../migrations/redesign/message_composer.md).
+- Removed `StreamMessageInput` and `StreamMessageTextField`; migrate to `StreamMessageComposer`.
+- Removed `KeyEventPredicate` from `src/utils/typedefs.dart`; it is now exported from `stream_chat_message_composer.dart` directly.
+- `MessageComposerComponentProps` now carries additional text-input props (`canAlsoSendToChannel`, `textInputAction`, `keyboardType`, `textCapitalization`, `autofocus`, `autocorrect`).
+
 - Removed `StreamMessageListView.unreadIndicatorBuilder`; use `StreamComponentFactory.jumpToUnreadButton`.
 - Renamed `UnreadIndicatorButton.onTap` → `onJumpTap`.
 - Renamed stream icons to remove the size suffix from the icon names.

packages/stream_chat_flutter/example/lib/main.dart

@@ -220,7 +220,7 @@ class ChannelPage extends StatefulWidget {
 }
 
 class _ChannelPageState extends State<ChannelPage> {
-  late final messageInputController = StreamMessageInputController();
+  late final messageInputController = StreamMessageComposerController();
   final focusNode = FocusNode();
 
   @override
@@ -256,11 +256,11 @@ class _ChannelPageState extends State<ChannelPage> {
               swipeToReply: true,
             ),
           ),
-          StreamMessageInput(
+          StreamMessageComposer(
             enableVoiceRecording: true,
             onQuotedMessageCleared: messageInputController.clearQuotedMessage,
             focusNode: focusNode,
-            messageInputController: messageInputController,
+            controller: messageInputController,
           ),
         ],
       ),
@@ -303,9 +303,9 @@ class ThreadPage extends StatelessWidget {
               parentMessage: parent,
             ),
           ),
-          StreamMessageInput(
+          StreamMessageComposer(
             enableVoiceRecording: true,
-            messageInputController: StreamMessageInputController(
+            controller: StreamMessageComposerController(
               message: Message(parentId: parent.id),
             ),
           ),

packages/stream_chat_flutter/example/lib/split_view.dart

@@ -1,4 +1,4 @@
-// ignore_for_file: public_member_api_docs
+// ignore_for_file: public_member_api_docs, prefer_const_constructors
 import 'package:flutter/material.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
@@ -128,7 +128,7 @@ class ChannelPage extends StatelessWidget {
   @override
   Widget build(BuildContext context) => Navigator(
     onGenerateRoute: (settings) => MaterialPageRoute(
-      builder: (context) => const Scaffold(
+      builder: (context) => Scaffold(
         appBar: StreamChannelHeader(
           showBackButton: false,
         ),
@@ -137,7 +137,7 @@ class ChannelPage extends StatelessWidget {
             Expanded(
               child: StreamMessageListView(),
             ),
-            StreamMessageInput(),
+            StreamMessageComposer(),
           ],
         ),
       ),