2 files changed, 54 insertions, 0 deletions
diff --git a/indra/newview/llpanellandmarks.cpp b/indra/newview/llpanellandmarks.cpp
index e87b70f6a5..faa0aa95b9 100644
--- a/indra/newview/llpanellandmarks.cpp
+++ b/indra/newview/llpanellandmarks.cpp
@@ -66,6 +66,30 @@ static const std::string TRASH_BUTTON_NAME = "trash_btn";
 
 // helper functions
 static void filter_list(LLInventorySubTreePanel* inventory_list, const std::string& string);
+static void save_folder_state_if_no_filter(LLInventorySubTreePanel* inventory_list);
+
+/**
+ * Bridge to support knowing when the inventory has changed to update folder (open/close) state 
+ * for landmarks panels.
+ *
+ * Due to Inventory data are loaded in background we need to save folder state each time 
+ * next level is loaded. See EXT-3094.
+ */
+class LLLandmarksPanelObserver : public LLInventoryObserver
+{
+public:
+	LLLandmarksPanelObserver(LLLandmarksPanel* lp) : mLP(lp) {}
+	virtual ~LLLandmarksPanelObserver() {}
+	/*virtual*/ void changed(U32 mask);
+
+private:
+	LLLandmarksPanel* mLP;
+};
+
+void LLLandmarksPanelObserver::changed(U32 mask)
+{
+	mLP->saveFolderStateIfNoFilter();
+}
 
 LLLandmarksPanel::LLLandmarksPanel()
 	:	LLPanelPlacesTab()
@@ -78,11 +102,18 @@ LLLandmarksPanel::LLLandmarksPanel()
 	,	mGearFolderMenu(NULL)
 	,	mGearLandmarkMenu(NULL)
 {
+	mInventoryObserver = new LLLandmarksPanelObserver(this);
+	gInventory.addObserver(mInventoryObserver);
+
 	LLUICtrlFactory::getInstance()->buildPanel(this, "panel_landmarks.xml");
 }
 
 LLLandmarksPanel::~LLLandmarksPanel()
 {
+	if (gInventory.containsObserver(mInventoryObserver))
+	{
+		gInventory.removeObserver(mInventoryObserver);
+	}
 }
 
 BOOL LLLandmarksPanel::postBuild()
@@ -226,6 +257,14 @@ void LLLandmarksPanel::onSelectorButtonClicked()
 	}
 }
 
+void LLLandmarksPanel::saveFolderStateIfNoFilter()
+{
+	save_folder_state_if_no_filter(mFavoritesInventoryPanel);
+	save_folder_state_if_no_filter(mLandmarksInventoryPanel);
+	save_folder_state_if_no_filter(mMyInventoryPanel);
+	save_folder_state_if_no_filter(mLibraryInventoryPanel);
+}
+
 //////////////////////////////////////////////////////////////////////////
 // PROTECTED METHODS
 //////////////////////////////////////////////////////////////////////////
@@ -1020,4 +1059,13 @@ static void filter_list(LLInventorySubTreePanel* inventory_list, const std::stri
 	// set new filter string
 	inventory_list->setFilterSubString(string);
 }
+
+static void save_folder_state_if_no_filter(LLInventorySubTreePanel* inventory_list)
+{
+	// save current folder open state if no filter currently applied
+	if (inventory_list->getRootFolder() && inventory_list->getRootFolder()->getFilterSubString().empty())
+	{
+		inventory_list->saveFolderState();
+	}
+}
 // EOF
diff --git a/indra/newview/llpanellandmarks.h b/indra/newview/llpanellandmarks.h
index bee141d051..b0e537f647 100644
--- a/indra/newview/llpanellandmarks.h
+++ b/indra/newview/llpanellandmarks.h
@@ -67,6 +67,11 @@ public:
 		mCurrentSelectedList = inventory_list;
 	}
 
+	/**
+	 * Saves folder state for all Inventory Panels if there are no applied filter.
+	 */
+	void saveFolderStateIfNoFilter();
+
 protected:
 	/**
 	 * @return true - if current selected panel is not null and selected item is a landmark
@@ -151,6 +156,7 @@ private:
 	LLMenuGL*					mGearFolderMenu;
 	LLMenuGL*					mMenuAdd;
 	LLInventorySubTreePanel*	mCurrentSelectedList;
+	LLInventoryObserver*		mInventoryObserver;
 
 	LLPanel*					mListCommands;
 	bool 						mSortByDate;