Added support for deleting multiple documents

src/document/UBDocumentController.h

@@ -102,7 +102,7 @@ class UBDocumentController : public UBDocumentContainer
 
         enum LastSelectedElementType
         {
-            None = 0, Folder, Document, Page
+            None = 0, Folder, Document, Page, Multiple
         };
 
         LastSelectedElementType mSelectionType;
@@ -121,13 +121,20 @@ class UBDocumentController : public UBDocumentContainer
         UBDocumentToolsPalette *mToolsPalette;
         bool mToolsPalettePositionned;
         UBDocumentGroupTreeItem* mTrashTi;
+        QList<QTreeWidgetItem*> mCurrentSelection;
+        QString mDocumentTrashGroupName;
+        QString mDefaultDocumentGroupName;
 
         void selectADocumentOnTrashingSelectedOne(UBDocumentGroupTreeItem* groupTi,UBDocumentProxyTreeItem *proxyTi);
-
         void moveDocumentToTrash(UBDocumentGroupTreeItem* groupTi, UBDocumentProxyTreeItem *proxyTi);
         void moveFolderToTrash(UBDocumentGroupTreeItem* groupTi);
-        QString mDocumentTrashGroupName;
-        QString mDefaultDocumentGroupName;
+        void emptyTrash(bool showConfirmationDialog);
+        void deleteTreeItem(QTreeWidgetItem * item, bool showConfirmationDialog);
+
+        void updateCurrentSelection();
+        bool multipleSelection();
+        bool isDocumentInTrash(UBDocumentProxyTreeItem * document);
+        bool isCurrentSelectionInTrash();
 
     private slots:
         void documentZoomSliderValueChanged (int value);