Fix wrong use of OUString::copy

Code like:

if( aCommandURL.copy(5) != ".uno:" )

is obviously wrong, as OUString::copy(sal_Int32) takes the _beginning_
index, so for this condition to be false the command URL must have
".uno:" in the _middle_ of the string. This created some weird things
like an empty label attribute added to any submenu item. Moreover, the
command URL can be easily shorter than 5 (like when a custom submenu
added by the user). Using copy(5) in such case officially considered as
"undefined behavior" and will trigger an assert in debug build (that's
how I discovered this code actually).

Most likely the original intent was to check whether the command URL
doesn't start with ".uno:", and so should be changed to use
OUString::startsWith. But doing that will create a regression, as it
won't be possible anymore to change labels of commands that start with
".uno:". Simply dropping this check seems to be better solution here.

Change-Id: I2f88807eceae1006066a14750f2003e235f49ad4

1 files changed, 3 insertions, 5 deletions

diff --git a/framework/source/fwe/xml/menudocumenthandler.cxx b/framework/source/fwe/xml/menudocumenthandler.cxx
index 1d7122e2b68c..5f5925873a8a 100644
--- a/framework/source/fwe/xml/menudocumenthandler.cxx
+++ b/framework/source/fwe/xml/menudocumenthandler.cxx
@@ -80,8 +80,6 @@ static const char ITEM_DESCRIPTOR_TYPE[]        = "Type";
 static const char ITEM_DESCRIPTOR_STYLE[]       = "Style";
 
 // special popup menus (filled during runtime) must be saved as an empty popup menu or menuitem!!!
-static const sal_Int32 CMD_PROTOCOL_SIZE        = 5;
-static const char CMD_PROTOCOL[]                = ".uno:";
 static const char ADDDIRECT_CMD[]               = ".uno:AddDirect";
 static const char AUTOPILOTMENU_CMD[]           = ".uno:AutoPilotMenu";
 
@@ -839,7 +837,7 @@ throw ( SAXException, RuntimeException )
                                             m_aAttributeType,
                                             aCommandURL );
 
-                    if ( aCommandURL.copy( CMD_PROTOCOL_SIZE ) != CMD_PROTOCOL )
+                    if ( !aLabel.isEmpty() )
                         pListMenu->AddAttribute( ATTRIBUTE_NS_LABEL,
                                                  m_aAttributeType,
                                                  aLabel );
@@ -897,13 +895,13 @@ void OWriteMenuDocumentHandler::WriteMenuItem( const OUString& aCommandURL, cons
                              aHelpURL );
     }
 
-    if ( !aLabel.isEmpty() && aCommandURL.copy( CMD_PROTOCOL_SIZE ) != CMD_PROTOCOL )
+    if ( !aLabel.isEmpty() )
     {
         pList->AddAttribute( ATTRIBUTE_NS_LABEL,
                                 m_aAttributeType,
                                 aLabel );
     }
-    if (( nStyle > 0 ) && aCommandURL.copy( CMD_PROTOCOL_SIZE ) != CMD_PROTOCOL )
+    if ( nStyle > 0 )
     {
         OUString aValue;
         MenuStyleItem* pStyle = MenuItemStyles;