Fix issues arise through shared height

ChatTwo/Configuration.cs

@@ -201,6 +201,9 @@ internal class Tab
     [NonSerialized]
     public InputChannel? PreviousChannel;
 
+    [NonSerialized]
+    public Guid Identifier = Guid.NewGuid();
+
     ~Tab() { MessagesMutex.Dispose(); }
 
     internal bool Contains(Message message) {

ChatTwo/Message.cs

@@ -67,8 +67,8 @@ internal class Message {
 
     // Not stored in the database:
     internal int Hash { get; }
-    internal float? Height { get; set; }
+    internal Dictionary<Guid, float?> Height { get; } = new();
-    internal bool IsVisible { get; set; }
+    internal Dictionary<Guid, bool> IsVisible { get; } = new();
 
     internal Message(ulong receiver, ChatCode code, List<Chunk> sender, List<Chunk> content, SeString senderSource, SeString contentSource) {
         Receiver = receiver;

ChatTwo/Ui/ChatLogWindow.cs

@@ -895,8 +895,8 @@ public sealed class ChatLogWindow : Window
                 var message = tab.Messages[i];
                 if (reset)
                 {
-                    message.Height = null;
+                    message.Height[tab.Identifier] = null;
-                    message.IsVisible = false;
+                    message.IsVisible[tab.Identifier] = false;
                 }
 
                 if (Plugin.Config.CollapseDuplicateMessages)
@@ -933,7 +933,9 @@ public sealed class ChatLogWindow : Window
 
                 // message has rendered once
                 // message isn't visible, so render dummy
-                if (message is { Height: not null, IsVisible: false })
+                message.Height.TryGetValue(tab.Identifier, out var height);
+                message.IsVisible.TryGetValue(tab.Identifier, out var visible);
+                if (height != null && !visible)
                 {
                     var beforeDummy = ImGui.GetCursorPos();
 
@@ -941,10 +943,10 @@ public sealed class ChatLogWindow : Window
                     if (isTable)
                         ImGui.TableNextColumn();
 
-                    ImGui.Dummy(new Vector2(10f, message.Height.Value));
+                    ImGui.Dummy(new Vector2(10f, height.Value));
-                    message.IsVisible = ImGui.IsItemVisible();
+                    message.IsVisible[tab.Identifier] = ImGui.IsItemVisible();
 
-                    if (message.IsVisible)
+                    if (message.IsVisible[tab.Identifier])
                     {
                         if (isTable)
                             ImGui.TableSetColumnIndex(0);
@@ -993,16 +995,16 @@ public sealed class ChatLogWindow : Window
                     DrawChunks(message.Content, true, handler, lineWidth);
 
                 var afterDraw = ImGui.GetCursorScreenPos();
-                message.Height = ImGui.GetCursorPosY() - lastPos;
+                message.Height[tab.Identifier] = ImGui.GetCursorPosY() - lastPos;
                 if (isTable && !moreCompact)
                 {
-                    message.Height -= oldCellPaddingY * 2;
+                    message.Height[tab.Identifier] -= oldCellPaddingY * 2;
                     beforeDraw.Y += oldCellPaddingY;
                     afterDraw.Y -= oldCellPaddingY;
                 }
 
                 lastPos = ImGui.GetCursorPosY();
-                message.IsVisible = ImGui.IsRectVisible(beforeDraw, afterDraw);
+                message.IsVisible[tab.Identifier] = ImGui.IsRectVisible(beforeDraw, afterDraw);
             }
         }
         finally