Related: fdo#81641 create new styles with an initial name

instead of creating with a blank name and changing it later

this way undo of a style creation is initialized with its name and so create a
style followed by deleting a style and undoing all those steps doesn't crash

Change-Id: Ida7a34410d5d7b05edcb86950aabb3c672b82c8f

include/sfx2/styledlg.hxx

@@ -25,6 +25,7 @@
 #include <sfx2/tabdlg.hxx>
 
 class SfxStyleSheetBase;
+class SfxStyleSheetBasePool;
 
 class SFX2_DLLPUBLIC SfxStyleDialog: public SfxTabDialog
 {
@@ -45,6 +46,8 @@ public:
     const SfxStyleSheetBase&    GetStyleSheet() const { return *pStyle; }
 
     virtual short               Ok() SAL_OVERRIDE;
+
+    static OUString GenerateUnusedName(SfxStyleSheetBasePool &rPool);
 };
 
 #endif

sfx2/source/dialog/mgetempl.cxx

@@ -96,16 +96,7 @@ SfxManageStyleSheetPage::SfxManageStyleSheetPage(Window* pParent, const SfxItemS
     if ( pStyle->GetName().isEmpty() && pPool )
     {
         // NullString as Name -> generate Name
-        OUString aNoName( SfxResId(STR_NONAME).toString() );
-        sal_uInt16 nNo = 1;
-        OUString aNo( aNoName );
-        aNoName += OUString::number( nNo );
-        while ( pPool->Find( aNoName ) )
-        {
-            ++nNo;
-            aNoName = aNo;
-            aNoName += OUString::number( nNo );
-        }
+        OUString aNoName(SfxStyleDialog::GenerateUnusedName(*pPool));
         pStyle->SetName( aNoName );
         aName = aNoName;
         aFollow = pStyle->GetFollow();

sfx2/source/dialog/styledlg.cxx

@@ -147,5 +147,19 @@ IMPL_LINK( SfxStyleDialog, CancelHdl, Button *, pButton )
     return 0;
 }
 
+OUString SfxStyleDialog::GenerateUnusedName(SfxStyleSheetBasePool &rPool)
+{
+    OUString aNoName(SfxResId(STR_NONAME).toString());
+    sal_uInt16 nNo = 1;
+    OUString aNo(aNoName);
+    aNoName += OUString::number(nNo);
+    while (rPool.Find(aNoName))
+    {
+        ++nNo;
+        aNoName = aNo;
+        aNoName += OUString::number(nNo);
+    }
+    return aNoName;
+}
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

sw/source/uibase/app/docst.cxx

@@ -25,6 +25,7 @@
 
 #include <hintids.hxx>
 #include <sfx2/app.hxx>
+#include <sfx2/styledlg.hxx>
 #include <svl/whiter.hxx>
 #include <sfx2/templdlg.hxx>
 #include <sfx2/tplpitem.hxx>
@@ -291,6 +292,9 @@ void SwDocShell::ExecStyleSheet( SfxRequest& rReq )
                 false, &pItem ))
                 sParent = ((const SfxStringItem*)pItem)->GetValue();
 
+            if (sName.isEmpty() && mxBasePool.get())
+                sName = SfxStyleDialog::GenerateUnusedName(*mxBasePool);
+
             nRet = Edit( sName, sParent, nFamily, nMask, true, OString(), 0, rReq.IsAPI() );
         }
         break;