Fallback to default cell name for door destination

CHANGELOG.md

@@ -100,6 +100,7 @@
     Bug #5821: NPCs from mods getting removed if mod order was changed
     Bug #5835: OpenMW doesn't accept negative values for NPC's hello, alarm, fight, and flee
     Bug #5836: OpenMW dialogue/greeting/voice filter doesn't accept negative Ai values for NPC's hello, alarm, fight, and flee
+    Bug #5838: Local map and other menus become blank in some locations while playing Wizards' Islands mod.
     Bug #5840: GetSoundPlaying "Health Damage" doesn't play when NPC hits target with shield effect ( vanilla engine behavior )
     Bug #5841: Can't Cast Zero Cost Spells When Magicka is < 0
     Feature #390: 3rd person look "over the shoulder"

apps/openmw/mwbase/world.hpp

@@ -185,6 +185,7 @@ namespace MWBase
             ///
             /// \note If cell==0, the cell the player is currently in will be used instead to
             /// generate a name.
+            virtual std::string getCellName(const ESM::Cell* cell) const = 0;
 
             virtual void removeRefScript (MWWorld::RefData *ref) = 0;
             //< Remove the script attached to ref from mLocalScripts

apps/openmw/mwclass/door.cpp

@@ -302,30 +302,15 @@ namespace MWClass
 
     std::string Door::getDestination (const MWWorld::LiveCellRef<ESM::Door>& door)
     {
-        const MWWorld::ESMStore& store = MWBase::Environment::get().getWorld()->getStore();
-
-        std::string dest;
-        if (door.mRef.getDestCell() != "")
-        {
-            // door leads to an interior, use interior name as tooltip
-            dest = door.mRef.getDestCell();
-        }
-        else
+        std::string dest = door.mRef.getDestCell();
+        if (dest.empty())
         {
             // door leads to exterior, use cell name (if any), otherwise translated region name
             int x,y;
-            MWBase::Environment::get().getWorld()->positionToIndex (door.mRef.getDoorDest().pos[0], door.mRef.getDoorDest().pos[1], x, y);
-            const ESM::Cell* cell = store.get<ESM::Cell>().find(x,y);
-            if (cell->mName != "")
-                dest = cell->mName;
-            else
-            {
-                const ESM::Region* region =
-                    store.get<ESM::Region>().find(cell->mRegion);
-
-                //name as is, not a token
-                return MyGUI::TextIterator::toTagsString(region->mName);
-            }
+            auto world = MWBase::Environment::get().getWorld();
+            world->positionToIndex (door.mRef.getDoorDest().pos[0], door.mRef.getDoorDest().pos[1], x, y);
+            const ESM::Cell* cell = world->getStore().get<ESM::Cell>().search(x,y);
+            dest = world->getCellName(cell);
         }
 
         return "#{sCell=" + dest + "}";

apps/openmw/mwworld/worldimp.cpp

@@ -656,13 +656,19 @@ namespace MWWorld
     {
         if (!cell)
             cell = mWorldScene->getCurrentCell();
+        return getCellName(cell->getCell());
+    }
 
-        if (!cell->getCell()->isExterior() || !cell->getCell()->mName.empty())
-            return cell->getCell()->mName;
-
-        if (const ESM::Region* region = mStore.get<ESM::Region>().search (cell->getCell()->mRegion))
-            return region->mName;
+    std::string World::getCellName(const ESM::Cell* cell) const
+    {
+        if (cell)
+        {
+            if (!cell->isExterior() || !cell->mName.empty())
+                return cell->mName;
 
+            if (const ESM::Region* region = mStore.get<ESM::Region>().search (cell->mRegion))
+                return region->mName;
+        }
         return mStore.get<ESM::GameSetting>().find ("sDefaultCellname")->mValue.getString();
     }
 

apps/openmw/mwworld/worldimp.hpp

@@ -281,6 +281,7 @@ namespace MWWorld
             ///
             /// \note If cell==0, the cell the player is currently in will be used instead to
             /// generate a name.
+            std::string getCellName(const ESM::Cell* cell) const override;
 
             void removeRefScript (MWWorld::RefData *ref) override;
             //< Remove the script attached to ref from mLocalScripts