feat(ui): add enableActionAnimation flag to StreamMessageInput (#1367)

* feat(ui): add enableActionAnimation flag to StreamMessageInput

* chore(ui): update changelog

* fix(ui): add doc

packages/stream_chat_flutter/CHANGELOG.md

@@ -10,6 +10,7 @@
 - `VideoAttachment` now uses `thumbUrl` to show the thumbnail
   if it's available instead of generating them.
 - Expose `widthFactor` option in `MessageWidget`
+- Add `enableActionAnimation` flag to `StreamMessageInput`
 
 ## 5.0.1
 

packages/stream_chat_flutter/lib/src/message_input/stream_message_input.dart

@@ -109,8 +109,12 @@ class StreamMessageInput extends StatefulWidget {
     this.autoCorrect = true,
     this.enableMentionsOverlay = true,
     this.onQuotedMessageCleared,
+    this.enableActionAnimation = true,
   });
 
+  /// If true the message input will animate the actions while you type
+  final bool enableActionAnimation;
+
   /// List of triggers for showing autocomplete.
   final Iterable<StreamAutocompleteTrigger> customAutocompleteTriggers;
 
@@ -615,7 +619,7 @@ class StreamMessageInputState extends State<StreamMessageInput>
     return Padding(
       padding: const EdgeInsets.symmetric(horizontal: 8),
       child: AnimatedCrossFade(
-        crossFadeState: _actionsShrunk
+        crossFadeState: (_actionsShrunk && widget.enableActionAnimation)
             ? CrossFadeState.showFirst
             : CrossFadeState.showSecond,
         firstCurve: Curves.easeOut,