fix crash on re-export of fdo50057-2.odt to odt

(cherry picked from commit 66c9aec156d974b939b680dccbb27e18fb153a23)
Signed-off-by: Michael Stahl <mstahl@redhat.com>

Conflicts:
	sfx2/source/appl/fileobj.hxx

Reviewed-on: https://gerrit.libreoffice.org/15326
Reviewed-by: Michael Stahl <mstahl@redhat.com>
Tested-by: Michael Stahl <mstahl@redhat.com>
(cherry picked from commit 54e13b65a225dbb0778eb0bb6460dfa849064e0f)

Change-Id: Ice7a754dd4f42b5cf62ae2038b63d893b8a92fd8
Reviewed-on: https://gerrit.libreoffice.org/15433
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
Reviewed-by: Eike Rathke <erack@redhat.com>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>

2 files changed, 15 insertions, 7 deletions

diff --git a/sfx2/source/appl/fileobj.cxx b/sfx2/source/appl/fileobj.cxx
index e123285cbd03..7ae5b6e4cd58 100644
--- a/sfx2/source/appl/fileobj.cxx
+++ b/sfx2/source/appl/fileobj.cxx
@@ -47,7 +47,9 @@
 #define FILETYPE_OBJECT     3
 
 SvFileObject::SvFileObject()
-    : pOldParent(NULL)
+    : nPostUserEventId(0)
+    , pDelMed(NULL)
+    , pOldParent(NULL)
     , nType(FILETYPE_TEXT)
     , bLoadAgain(true)
     , bSynchron(false)
@@ -64,14 +66,16 @@ SvFileObject::SvFileObject()
 
 SvFileObject::~SvFileObject()
 {
-    if ( xMed.Is() )
+    if (xMed.Is())
     {
         xMed->SetDoneLink( Link() );
         xMed.Clear();
     }
+    if (nPostUserEventId)
+        Application::RemoveUserEvent(nPostUserEventId);
+    delete pDelMed;
 }
 
-
 bool SvFileObject::GetData( ::com::sun::star::uno::Any & rData,
                                 const OUString & rMimeType,
                                 bool bGetSynchron )
@@ -482,10 +486,10 @@ IMPL_STATIC_LINK( SvFileObject, LoadGrfReady_Impl, void*, EMPTYARG )
         if( pThis->xMed.Is() )
         {
             pThis->xMed->SetDoneLink( Link() );
-
-            Application::PostUserEvent(
+            pThis->pDelMed = new SfxMediumRef(pThis->xMed);
+            pThis->nPostUserEventId = Application::PostUserEvent(
                         STATIC_LINK( pThis, SvFileObject, DelMedium_Impl ),
-                        new SfxMediumRef( pThis->xMed ));
+                        pThis->pDelMed);
             pThis->xMed.Clear();
         }
     }
@@ -495,7 +499,9 @@ IMPL_STATIC_LINK( SvFileObject, LoadGrfReady_Impl, void*, EMPTYARG )
 
 IMPL_STATIC_LINK( SvFileObject, DelMedium_Impl, SfxMediumRef*, pDelMed )
 {
-    (void)pThis;
+    pThis->nPostUserEventId = 0;
+    assert(pThis->pDelMed == pDelMed);
+    pThis->pDelMed = NULL;
     delete pDelMed;
     return 0;
 }
diff --git a/sfx2/source/appl/fileobj.hxx b/sfx2/source/appl/fileobj.hxx
index d43e1ebe52e3..5e602b724aeb 100644
--- a/sfx2/source/appl/fileobj.hxx
+++ b/sfx2/source/appl/fileobj.hxx
@@ -33,6 +33,8 @@ class SvFileObject : public sfx2::SvLinkSource
     OUString            sReferer;
     Link                aEndEditLink;
     SfxMediumRef        xMed;
+    ImplSVEvent*        nPostUserEventId;
+    SfxMediumRef*       pDelMed;
     Window*             pOldParent;
 
     sal_uInt8 nType;