Docking: Removed unnecessary ImGuiTabItemFlags_DockedWindow internal flag.

imgui.cpp

@@ -11474,7 +11474,7 @@ static void ImGui::DockNodeUpdateTabBar(ImGuiDockNode* node, ImGuiWindow* host_w
             continue;
         if (window->LastFrameActive + 1 >= g.FrameCount || !node_was_active)
         {
-            ImGuiTabItemFlags tab_item_flags = ImGuiTabItemFlags_DockedWindow;
+            ImGuiTabItemFlags tab_item_flags = 0;
             if (window->Flags & ImGuiWindowFlags_UnsavedDocument)
                 tab_item_flags |= ImGuiTabItemFlags_UnsavedDocument;
             if (tab_bar->Flags & ImGuiTabBarFlags_NoCloseWithMiddleMouseButton)

imgui_internal.h

@@ -1397,8 +1397,7 @@ enum ImGuiTabBarFlagsPrivate_
 
 enum ImGuiTabItemFlagsPrivate_
 {
-    ImGuiTabItemFlags_DockedWindow              = 1 << 20,  // [Docking]
-    ImGuiTabItemFlags_Unsorted                  = 1 << 22,  // [Docking] Trailing tabs with the _Unsorted flag will be sorted based on the DockOrder of their Window.
+    ImGuiTabItemFlags_Unsorted                  = 1 << 20,  // [Docking] Trailing tabs with the _Unsorted flag will be sorted based on the DockOrder of their Window.
     ImGuiTabItemFlags_Preview                   = 1 << 21   // [Docking] Display tab shape for docking preview (height is adjusted slightly to compensate for the yet missing tab bar)
 };
 

imgui_widgets.cpp

@@ -6507,7 +6507,7 @@ bool    ImGui::TabItemEx(ImGuiTabBar* tab_bar, const char* label, bool* p_open,
     {
         // Drag and drop: re-order tabs
         float drag_distance_from_edge_x = 0.0f;
-        if (!g.DragDropActive && ((tab_bar->Flags & ImGuiTabBarFlags_Reorderable) || (flags & ImGuiTabItemFlags_DockedWindow)))
+        if (!g.DragDropActive && ((tab_bar->Flags & ImGuiTabBarFlags_Reorderable) || (docked_window != NULL)))
         {
             // While moving a tab it will jump on the other side of the mouse, so we also test for MouseDelta.x
             if (g.IO.MouseDelta.x < 0.0f && g.IO.MousePos.x < bb.Min.x)
@@ -6525,7 +6525,7 @@ bool    ImGui::TabItemEx(ImGuiTabBar* tab_bar, const char* label, bool* p_open,
         }
 
         // Extract a Dockable window out of it's tab bar
-        if (flags & ImGuiTabItemFlags_DockedWindow)
+        if (docked_window != NULL)
         {
             // We use a variable threshold to distinguish dragging tabs within a tab bar and extracting them out of the tab bar
             bool undocking_tab = (g.DragDropActive && g.DragDropPayload.SourceId == id);