EXT-7722 Fixed "Add to COF" and "Remove from COF" outfit context menu items to be enabled when appropriate and work properly.

Work on "Take Off - Remove from Current Outfit" and "Wear - Add to Current Outfit" menu options:
- The menu items of the outfit context menu and the My Outfits gear menu are now disabled
  when inappropriate instead of being hidden.
- The menu items get enabled/disabled depending on whether you can wear (take off) anything from the selected outfit.
  (was: depending on whether you're wearing the outfit)
- Changed the way the options work: they now only operate on clothes and attachments.
  "Add to COF" now only adds those body parts that are missing in COF;
  "Remove from COF" doesn't touch body parts at all.

  Without this change both "Add" and "Remove" options would be available simultaneously, because
  any valid outfit contains body parts. I think that would be confusing.
  And you don't expect you body parts to be replaced when doing "Add to COF'. (that's addition, not replacement)

Reviewed by Mike Antipov at https://codereview.productengine.com/secondlife/r/585/

--HG--
branch : product-engine

1 files changed, 15 insertions, 9 deletions

diff --git a/indra/newview/llinventoryfunctions.h b/indra/newview/llinventoryfunctions.h
index 93c56e1b8a..1795b54679 100644
--- a/indra/newview/llinventoryfunctions.h
+++ b/indra/newview/llinventoryfunctions.h
@@ -337,6 +337,21 @@ public:
 							LLInventoryItem* item);
 };
 
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+// Class LLFindWearablesEx
+//
+// Collects wearables based on given criteria.
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+class LLFindWearablesEx : public LLInventoryCollectFunctor
+{
+public:
+	LLFindWearablesEx(bool is_worn, bool include_body_parts = true);
+	virtual bool operator()(LLInventoryCategory* cat, LLInventoryItem* item);
+private:
+	bool mIncludeBodyParts;
+	bool mIsWorn;
+};
+
 //Inventory collect functor collecting wearables of a specific wearable type
 class LLFindWearablesOfType : public LLInventoryCollectFunctor
 {
@@ -363,15 +378,6 @@ public:
 	}
 };
 
-// Find worn items.
-class LLFindWorn : public LLInventoryCollectFunctor
-{
-public:
-	LLFindWorn() {}
-	virtual ~LLFindWorn() {}
-	virtual bool operator()(LLInventoryCategory* cat, LLInventoryItem* item);
-};
-
 // Collect non-removable folders and items.
 class LLFindNonRemovableObjects : public LLInventoryCollectFunctor
 {