Nav: Tabbing always enable nav highlight when ImGuiConfigFlags_NavEnableKeyboard is set. (#6802, #3092, #5759, #787)

docs/CHANGELOG.txt

@@ -53,6 +53,9 @@ Breaking changes:
 
 Other changes:
 
+- Nav: Tabbing always enable nav highlight when ImGuiConfigFlags_NavEnableKeyboard is set.
+  Previously was inconsistent and only enabled when stepping through a non-input item.
+  (#6802, #3092, #5759, #787)
 - Fonts: 'float size_pixels' passed to AddFontXXX() functions is now rounded to lowest integer.
   This is because our layout/font system currently doesn't fully support non-integer sizes. Until
   it does, this has been a common pitfall leading to more or less subtle issues. (#3164, #3309, #6800)

imgui.cpp

@@ -7669,7 +7669,7 @@ void ImGui::FocusItem()
         return;
     }
 
-    ImGuiNavMoveFlags move_flags = ImGuiNavMoveFlags_IsTabbing | ImGuiNavMoveFlags_FocusApi | ImGuiNavMoveFlags_NoSelect;
+    ImGuiNavMoveFlags move_flags = ImGuiNavMoveFlags_IsTabbing | ImGuiNavMoveFlags_FocusApi | ImGuiNavMoveFlags_NoSetNavHighlight | ImGuiNavMoveFlags_NoSelect;
     ImGuiScrollFlags scroll_flags = window->Appearing ? ImGuiScrollFlags_KeepVisibleEdgeX | ImGuiScrollFlags_AlwaysCenterY : ImGuiScrollFlags_KeepVisibleEdgeX | ImGuiScrollFlags_KeepVisibleEdgeY;
     SetNavWindow(window);
     NavMoveRequestSubmit(ImGuiDir_None, ImGuiDir_Up, move_flags, scroll_flags);
@@ -7704,7 +7704,7 @@ void ImGui::SetKeyboardFocusHere(int offset)
 
     SetNavWindow(window);
 
-    ImGuiNavMoveFlags move_flags = ImGuiNavMoveFlags_IsTabbing | ImGuiNavMoveFlags_Activate | ImGuiNavMoveFlags_FocusApi;
+    ImGuiNavMoveFlags move_flags = ImGuiNavMoveFlags_IsTabbing | ImGuiNavMoveFlags_Activate | ImGuiNavMoveFlags_FocusApi | ImGuiNavMoveFlags_NoSetNavHighlight;
     ImGuiScrollFlags scroll_flags = window->Appearing ? ImGuiScrollFlags_KeepVisibleEdgeX | ImGuiScrollFlags_AlwaysCenterY : ImGuiScrollFlags_KeepVisibleEdgeX | ImGuiScrollFlags_KeepVisibleEdgeY;
     NavMoveRequestSubmit(ImGuiDir_None, offset < 0 ? ImGuiDir_Up : ImGuiDir_Down, move_flags, scroll_flags); // FIXME-NAV: Once we refactor tabbing, add LegacyApi flag to not activate non-inputable.
     if (offset == -1)
@@ -11727,7 +11727,6 @@ void ImGui::NavUpdateCreateTabbingRequest()
 
     // Initiate tabbing request
     // (this is ALWAYS ENABLED, regardless of ImGuiConfigFlags_NavEnableKeyboard flag!)
-    // Initially this was designed to use counters and modulo arithmetic, but that could not work with unsubmitted items (list clipper). Instead we use a strategy close to other move requests.
     // See NavProcessItemForTabbingRequest() for a description of the various forward/backward tabbing cases with and without wrapping.
     const bool nav_keyboard_active = (g.IO.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) != 0;
     if (nav_keyboard_active)
@@ -11835,7 +11834,6 @@ void ImGui::NavMoveRequestApplyResult()
     {
         g.NavNextActivateId = result->ID;
         g.NavNextActivateFlags = ImGuiActivateFlags_None;
-        g.NavMoveFlags |= ImGuiNavMoveFlags_NoSetNavHighlight;
         if (g.NavMoveFlags & ImGuiNavMoveFlags_IsTabbing)
             g.NavNextActivateFlags |= ImGuiActivateFlags_PreferInput | ImGuiActivateFlags_TryToPreserveState;
     }