diff --git a/packages/stream_chat_flutter/CHANGELOG.md b/packages/stream_chat_flutter/CHANGELOG.md
index 84dafba6..a0cd21e0 100644
--- a/packages/stream_chat_flutter/CHANGELOG.md
+++ b/packages/stream_chat_flutter/CHANGELOG.md
@@ -10,6 +10,7 @@
 
 - Now it is possible to customize the max lines of the title of a url attachment. Before it was always 1 line.
 - Added `attachmentActionsModalBuilder` parameter to `StreamMessageWidget` that allows to customize `AttachmentActionsModal`.
+- Added `StreamMessageInput.sendMessageKeyPredicate` and `StreamMessageInput.clearQuotedMessageKeyPredicate` to customize the keys used to send and clear the quoted message.
 
 🔄 Changed
 
diff --git a/packages/stream_chat_flutter/lib/platform_widget_builder/src/platform_widget_base.dart b/packages/stream_chat_flutter/lib/platform_widget_builder/src/platform_widget_base.dart
index 9d3470d6..0487bd43 100644
--- a/packages/stream_chat_flutter/lib/platform_widget_builder/src/platform_widget_base.dart
+++ b/packages/stream_chat_flutter/lib/platform_widget_builder/src/platform_widget_base.dart
@@ -1,4 +1,4 @@
-import 'package:flutter/material.dart' show Theme;
+import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
 
 /// A generic widget builder function.
@@ -30,7 +30,7 @@ abstract class PlatformWidgetBase<M extends Widget, D extends Widget,
 
   @override
   Widget build(BuildContext context) {
-    final platform = Theme.of(context).platform;
+    final platform = defaultTargetPlatform;
     if (platform == TargetPlatform.android || platform == TargetPlatform.iOS) {
       return createMobileWidget(context);
     } else if (platform == TargetPlatform.macOS ||
diff --git a/packages/stream_chat_flutter/lib/src/message_input/stream_message_input.dart b/packages/stream_chat_flutter/lib/src/message_input/stream_message_input.dart
index 4105e362..b479b5ce 100644
--- a/packages/stream_chat_flutter/lib/src/message_input/stream_message_input.dart
+++ b/packages/stream_chat_flutter/lib/src/message_input/stream_message_input.dart
@@ -7,6 +7,7 @@ import 'package:cached_network_image/cached_network_image.dart'
     hide ErrorListener;
 import 'package:desktop_drop/desktop_drop.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 import 'package:photo_manager/photo_manager.dart';
 import 'package:shimmer/shimmer.dart';
@@ -110,8 +111,17 @@ class StreamMessageInput extends StatefulWidget {
     this.enableMentionsOverlay = true,
     this.onQuotedMessageCleared,
     this.enableActionAnimation = true,
+    this.sendMessageKeyPredicate = _defaultSendMessageKeyPredicate,
+    this.clearQuotedMessageKeyPredicate =
+        _defaultClearQuotedMessageKeyPredicate,
   });
 
+  /// The predicate used to send a message on desktop/web
+  final KeyEventPredicate sendMessageKeyPredicate;
+
+  /// The predicate used to clear the quoted message on desktop/web
+  final KeyEventPredicate clearQuotedMessageKeyPredicate;
+
   /// If true the message input will animate the actions while you type
   final bool enableActionAnimation;
 
@@ -252,6 +262,22 @@ class StreamMessageInput extends StatefulWidget {
   static bool _defaultValidator(Message message) =>
       message.text?.isNotEmpty == true || message.attachments.isNotEmpty;
 
+  static bool _defaultSendMessageKeyPredicate(
+    FocusNode node,
+    KeyEvent event,
+  ) {
+    // On desktop/web, send the message when the user presses the enter key.
+    return event is KeyUpEvent && event.logicalKey == LogicalKeyboardKey.enter;
+  }
+
+  static bool _defaultClearQuotedMessageKeyPredicate(
+    FocusNode node,
+    KeyEvent event,
+  ) {
+    // On desktop/web, clear the quoted message when the user presses the escape key.
+    return event is KeyUpEvent && event.logicalKey == LogicalKeyboardKey.escape;
+  }
+
   @override
   StreamMessageInputState createState() => StreamMessageInputState();
 }
@@ -509,9 +535,6 @@ class StreamMessageInputState extends State<StreamMessageInput>
                             : CrossFadeState.showSecond,
                       ),
                     ),
-                  // PlatformWidgetBuilder(
-                  //   mobile: (context, child) => _buildFilePickerSection(),
-                  // ),
                 ],
               ),
             ),
@@ -753,24 +776,12 @@ class StreamMessageInputState extends State<StreamMessageInput>
                   LimitedBox(
                     maxHeight: widget.maxHeight,
                     child: PlatformWidgetBuilder(
-                      web: (context, child) => KeyboardShortcutRunner(
-                        onEnterKeypress: sendMessage,
-                        onEscapeKeypress: () {
-                          if (_hasQuotedMessage &&
-                              _effectiveController.text.isEmpty) {
-                            widget.onQuotedMessageCleared?.call();
-                          }
-                        },
+                      web: (context, child) => Focus(
+                        onKeyEvent: _handleKeyPressed,
                         child: child!,
                       ),
-                      desktop: (context, child) => KeyboardShortcutRunner(
-                        onEnterKeypress: sendMessage,
-                        onEscapeKeypress: () {
-                          if (_hasQuotedMessage &&
-                              _effectiveController.text.isEmpty) {
-                            widget.onQuotedMessageCleared?.call();
-                          }
-                        },
+                      desktop: (context, child) => Focus(
+                        onKeyEvent: _handleKeyPressed,
                         child: child!,
                       ),
                       mobile: (context, child) => child,
@@ -801,6 +812,25 @@ class StreamMessageInputState extends State<StreamMessageInput>
     );
   }
 
+  KeyEventResult _handleKeyPressed(FocusNode node, KeyEvent event) {
+    // Check for send message key.
+    if (widget.sendMessageKeyPredicate(node, event)) {
+      sendMessage();
+      return KeyEventResult.handled;
+    }
+
+    // Check for clear quoted message key.
+    if (widget.clearQuotedMessageKeyPredicate(node, event)) {
+      if (_hasQuotedMessage && _effectiveController.text.isEmpty) {
+        widget.onQuotedMessageCleared?.call();
+      }
+      return KeyEventResult.handled;
+    }
+
+    // Return ignored to allow other key events to be handled.
+    return KeyEventResult.ignored;
+  }
+
   InputDecoration _getInputDecoration(BuildContext context) {
     final passedDecoration = _messageInputTheme.inputDecoration;
     return InputDecoration(
diff --git a/packages/stream_chat_flutter/lib/src/utils/typedefs.dart b/packages/stream_chat_flutter/lib/src/utils/typedefs.dart
index b6e1af43..6cc581bf 100644
--- a/packages/stream_chat_flutter/lib/src/utils/typedefs.dart
+++ b/packages/stream_chat_flutter/lib/src/utils/typedefs.dart
@@ -340,6 +340,11 @@ typedef DownloadedPathCallback = void Function(String? path);
 /// {@endtemplate}
 typedef UserTapCallback = void Function(User, Widget?);
 
+/// {@template rawKeyEventPredicate}
+/// Callback called to react to a key event
+/// {@endtemplate}
+typedef KeyEventPredicate = bool Function(FocusNode, KeyEvent);
+
 /// {@template userItemBuilder}
 /// Builder used to create a custom [ListUserItem] from a [User]
 /// {@endtemplate}