(EXT-6722) Create modified inventory view for "my outfits" tab in top-level appearance sidebar (tier 1)

llui:
- Setting container panel for accordion tab control to dynamically add tabs to accordions.
- Added method to dynamically remove accordion tabs.
- Added LLIconCtrl image setter.

newview:
- Class LLOutfitsList - a list of agents's outfits from "My Outfits" inventory category which represents each outfit by an accordion tab with a list of items inside it.
- Class LLWearableItemsList - a list of wearable items used in each accordion tab of "My Outfits" tab.
- Class LLInventoryItemsList - a base class for LLWearableItemsList that represents inventory items by panels in LLFlatListView.
- Class LLPanelInventoryItem - inventory item representation for a flat list. Item icon is set according to item type.
- Class LLInventoryCategoriesObserver - an observer used in LLOutfitsList for monitoring changes to "My Outfits" inventory category and updating outfits accordion tabs and list of items for each outfit.

Reviewed by Mike Antipov https://codereview.productengine.com/secondlife/r/285/

--HG--
branch : product-engine

1 files changed, 24 insertions, 6 deletions

diff --git a/indra/newview/llinventoryobserver.cpp b/indra/newview/llinventoryobserver.cpp
index 03006243f9..214b5d317a 100644
--- a/indra/newview/llinventoryobserver.cpp
+++ b/indra/newview/llinventoryobserver.cpp
@@ -658,11 +658,13 @@ void LLInventoryCategoriesObserver::changed(U32 mask)
 
 	for (category_map_t::iterator iter = mCategoryMap.begin();
 		 iter != mCategoryMap.end();
-		 iter++)
+		 ++iter)
 	{
-		// Inventory category version is used to find out if some changes
-		// to a category have been made.
-		S32 version = gInventory.getCategory((*iter).first)->getVersion();
+		LLViewerInventoryCategory* category = gInventory.getCategory((*iter).first);
+		if (!category)
+			continue;
+
+		S32 version = category->getVersion();
 		if (version != (*iter).second.mVersion)
 		{
 			// Update category version in map.
@@ -674,11 +676,27 @@ void LLInventoryCategoriesObserver::changed(U32 mask)
 
 void LLInventoryCategoriesObserver::addCategory(const LLUUID& cat_id, callback_t cb)
 {
-	S32 version = gInventory.getCategory(cat_id)->getVersion();
+	S32 version;
+	LLViewerInventoryCategory* category = gInventory.getCategory(cat_id);
+	if (category)
+	{
+		// Inventory category version is used to find out if some changes
+		// to a category have been made.
+		version = category->getVersion();
+	}
+	else
+	{
+		// If category could not be retrieved it might mean that
+		// inventory is unusable at the moment so the category is
+		// stored with VERSION_UNKNOWN and it may be updated later.
+		version = LLViewerInventoryCategory::VERSION_UNKNOWN;
+	}
+
+	version = category->getVersion();
 	mCategoryMap.insert(category_map_value_t(cat_id, LLCategoryData(cb, version)));
 }
 
 void LLInventoryCategoriesObserver::removeCategory(const LLUUID& cat_id)
 {
-	mCategoryMap.erase(mCategoryMap.find(cat_id));
+	mCategoryMap.erase(cat_id);
 }