SL-19310 Update navigation buttons in single-folder view

indra/llui/llfolderview.cpp

@@ -1273,6 +1273,11 @@ BOOL LLFolderView::handleKeyHere( KEY key, MASK mask )
 		if(mSelectedItems.size())
 		{
 			LLFolderViewItem* last_selected = getCurSelectedItem();
+            if(last_selected && last_selected->isSingleFolderMode())
+            {
+                handled = FALSE;
+                break;
+            }
 			LLFolderViewItem* parent_folder = last_selected->getParentFolder();
 			if (!last_selected->isOpen() && parent_folder && parent_folder->getParentFolder())
 			{

indra/llui/llfolderviewitem.h

@@ -279,6 +279,8 @@ public:
     // Does not need filter update
 	virtual void refreshSuffix();
 
+    bool isSingleFolderMode() { return mSingleFolderMode; }
+
 	// LLView functionality
 	virtual BOOL handleRightMouseDown( S32 x, S32 y, MASK mask );
 	virtual BOOL handleMouseDown( S32 x, S32 y, MASK mask );

indra/newview/llinventorypanel.cpp

@@ -2107,7 +2107,7 @@ void LLInventorySingleFolderPanel::changeFolderRoot(const LLUUID& new_id)
 
 void LLInventorySingleFolderPanel::onForwardFolder()
 {
-    if(!mForwardFolders.empty() && (mFolderID != mForwardFolders.back()))
+    if(isForwardAvailable())
     {
         mBackwardFolders.push_back(mFolderID);
         mFolderID = mForwardFolders.back();
@@ -2118,7 +2118,7 @@ void LLInventorySingleFolderPanel::onForwardFolder()
 
 void LLInventorySingleFolderPanel::onBackwardFolder()
 {
-    if(!mBackwardFolders.empty() && (mFolderID != mBackwardFolders.back()))
+    if(isBackwardAvailable())
     {
         mForwardFolders.push_back(mFolderID);
         mFolderID = mBackwardFolders.back();
@@ -2133,6 +2133,16 @@ void LLInventorySingleFolderPanel::clearNavigationHistory()
     mBackwardFolders.clear();
 }
 
+bool LLInventorySingleFolderPanel::isBackwardAvailable()
+{
+    return (!mBackwardFolders.empty() && (mFolderID != mBackwardFolders.back()));
+}
+
+bool LLInventorySingleFolderPanel::isForwardAvailable()
+{
+    return (!mForwardFolders.empty() && (mFolderID != mForwardFolders.back()));
+}
+
 boost::signals2::connection LLInventorySingleFolderPanel::setRootChangedCallback(root_changed_callback_t cb)
 {
     return mRootChangedSignal.connect(cb);
@@ -2186,6 +2196,12 @@ void LLInventorySingleFolderPanel::updateSingleFolderRoot()
         mFolderRoot.get()->setCallbackRegistrar(&mCommitCallbackRegistrar);
 
         buildNewViews(mFolderID);
+        
+        LLFloater* root_floater = gFloaterView->getParentFloater(this);
+        if(root_floater)
+        {
+            root_floater->setFocus(true);
+        }
     }
 }
 

indra/newview/llinventorypanel.h

@@ -403,6 +403,9 @@ public:
     void clearNavigationHistory();
     LLUUID getSingleFolderRoot() { return mFolderID; }
 
+    bool isBackwardAvailable();
+    bool isForwardAvailable();
+
     void setSelectCallback(const boost::function<void (const std::deque<LLFolderViewItem*>& items, BOOL user_action)>& cb);
 
     typedef boost::function<void()> root_changed_callback_t;

indra/newview/llpanelmaininventory.cpp

@@ -374,6 +374,10 @@ BOOL LLPanelMainInventory::handleKeyHere(KEY key, MASK mask)
 		{
 			startSearch();
 		}
+        if(mSingleFolderMode && key == KEY_LEFT)
+        {
+            onBackFolderClicked();
+        }
 	}
 
 	return LLPanel::handleKeyHere(key, mask);
@@ -1327,6 +1331,7 @@ void LLPanelMainInventory::setSingleFolderViewRoot(const LLUUID& folder_id, bool
     if(clear_nav_history)
     {
         mSingleFolderPanelInventory->clearNavigationHistory();
+        updateNavButtons();
     }
 }
 
@@ -1756,6 +1761,17 @@ void LLPanelMainInventory::updateTitle()
             inventory_floater->setTitle(getString("inventory_title"));
         }
     }
+    updateNavButtons();
+}
+
+void LLPanelMainInventory::updateNavButtons()
+{
+    getChild<LLButton>("back_btn")->setEnabled(mSingleFolderPanelInventory->isBackwardAvailable());
+    getChild<LLButton>("forward_btn")->setEnabled(mSingleFolderPanelInventory->isForwardAvailable());
+    
+    const LLViewerInventoryCategory* cat = gInventory.getCategory(mSingleFolderPanelInventory->getSingleFolderRoot());
+    bool up_enabled = (cat && cat->getParentUUID().notNull());
+    getChild<LLButton>("up_btn")->setEnabled(up_enabled);
 }
 
 LLSidepanelInventory* LLPanelMainInventory::getParentSidepanelInventory()

indra/newview/llpanelmaininventory.h

@@ -179,6 +179,7 @@ protected:
     bool isActionVisible(const LLSD& userdata);
     static bool hasSettingsInventory();
     void updateTitle();
+    void updateNavButtons();
 	/**
 	 * Set upload cost in "Upload" sub menu.
 	 */

indra/newview/skins/default/xui/en/panel_main_inventory.xml

@@ -293,7 +293,9 @@
        border="false"
        bevel_style="none"
        scroll.reserve_scroll_corner="false">
-        <item folder_indentation="-8"/>
+        <item
+         single_folder_mode="true"
+         folder_indentation="-8"/>
         <folder
          single_folder_mode="true"
          folder_indentation="-8"/>