Fix first message animation

FrayxRulez · FrayxRulez · commit 44072cc1f5e2 · 2025-10-31T17:06:12.000+04:00
diff --git a/Telegram/Views/ChatView.xaml.cs b/Telegram/Views/ChatView.xaml.cs
@@ -621,7 +621,9 @@ private async void OnCollectionChanged(object sender, NotifyCollectionChangedEve
                     var edge = (index == panel.LastVisibleIndex && direction == 1) || (index == panel.FirstVisibleIndex && direction == -1);
 
                     var first = message.Delegate.IsSavedMessagesTab ? message.IsLast : message.IsFirst;
-                    var height = first ? selector.ActualSize.Y - 6 : selector.ActualSize.Y;
+                    var last = message.Delegate.IsSavedMessagesTab ? message.IsFirst : message.IsLast;
+
+                    var height = first && !last ? selector.ActualSize.Y - 6 : selector.ActualSize.Y;
 
                     _messagesShift.RegisterRemove(index, args.OldStartingIndex, height, edge && !Messages.VisualContains(selector));
                 }

Original file line number	Diff line number	Diff line change
`@@ -621,7 +621,9 @@ private async void OnCollectionChanged(object sender, NotifyCollectionChangedEve`
`621`	`621`	`var edge = (index == panel.LastVisibleIndex && direction == 1) \|\| (index == panel.FirstVisibleIndex && direction == -1);`
`622`	`622`
`623`	`623`	`var first = message.Delegate.IsSavedMessagesTab ? message.IsLast : message.IsFirst;`
`624`		`- var height = first ? selector.ActualSize.Y - 6 : selector.ActualSize.Y;`
	`624`	`+ var last = message.Delegate.IsSavedMessagesTab ? message.IsFirst : message.IsLast;`
	`625`	`+`
	`626`	`+ var height = first && !last ? selector.ActualSize.Y - 6 : selector.ActualSize.Y;`
`625`	`627`
`626`	`628`	`_messagesShift.RegisterRemove(index, args.OldStartingIndex, height, edge && !Messages.VisualContains(selector));`
`627`	`629`	`}`