sw: fix missing OLE preview for actively edited OLE object on save

Regression from commit 74844277cc2194c9e43f5bd7a6f78a9603da32f3 (disable
generation of ole previews in ODF format until after load, 2016-09-13),
if the user started an OLE edit in a Writer document, and saved without
ending the OLE edit, then
svt::EmbeddedObjectRef::UpdateReplacementOnDemand() removed the old
replacement image, but no new one was created.

Given that save is always an explicit user action (auto-save does not
kick in for unmodified documents), restore the permission to update OLE
replacement images during save.

Do this check in SwDocShell::CalcLayoutForOLEObjects(), as that's
OLE-related and is called from all the relevant save code paths (save,
save-as, convert to alien formats).

Change-Id: Idaad43909cd744a379e713efd70ffd000e2692bc
Reviewed-on: https://gerrit.libreoffice.org/75867
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Tested-by: Jenkins
diff --git a/sw/qa/extras/uiwriter/data2/ole-save-while-edit.odt b/sw/qa/extras/uiwriter/data2/ole-save-while-edit.odt
new file mode 100644
index 0000000..33a2284
--- /dev/null
+++ b/sw/qa/extras/uiwriter/data2/ole-save-while-edit.odt
Binary files differ
diff --git a/sw/qa/extras/uiwriter/uiwriter2.cxx b/sw/qa/extras/uiwriter/uiwriter2.cxx
index 2c9e4e9..b48dfdf 100644
--- a/sw/qa/extras/uiwriter/uiwriter2.cxx
+++ b/sw/qa/extras/uiwriter/uiwriter2.cxx
@@ -37,6 +37,7 @@
#include <sfx2/dispatch.hxx>
#include <svl/stritem.hxx>
#include <svx/svxids.hrc>
#include <comphelper/lok.hxx>
#include <txtfrm.hxx>
#include <redline.hxx>
#include <view.hxx>
@@ -2004,4 +2005,39 @@ CPPUNIT_TEST_FIXTURE(SwUiWriterTest2, testDateFormFieldCurrentDateInvalidation)
}
#endif

CPPUNIT_TEST_FIXTURE(SwUiWriterTest2, testOleSaveWhileEdit)
{
    // Enable LOK mode, otherwise OCommonEmbeddedObject::SwitchStateTo_Impl() will throw when it
    // finds out that the test runs headless.
    comphelper::LibreOfficeKit::setActive();

    // Load a document with a Draw doc in it.
    SwDoc* pDoc = createDoc("ole-save-while-edit.odt");
    SwWrtShell* pWrtShell = pDoc->GetDocShell()->GetWrtShell();
    pWrtShell->GotoObj(/*bNext=*/true, GotoObjFlags::Any);

    // Select the frame and switch to the frame shell.
    SwView* pView = pDoc->GetDocShell()->GetView();
    pView->StopShellTimer();

    // Start editing the OLE object.
    pWrtShell->LaunchOLEObj();

    // Save the document without existing the OLE edit.
    uno::Reference<frame::XStorable> xStorable(mxComponent, uno::UNO_QUERY);
    xStorable->storeToURL(maTempFile.GetURL(), {});

    uno::Reference<packages::zip::XZipFileAccess2> xNameAccess
        = packages::zip::ZipFileAccess::createWithURL(comphelper::getComponentContext(m_xSFactory),
                                                      maTempFile.GetURL());
    // Without the accompanying fix in place, this test would have failed: the OLE object lost its
    // replacement on save if the edit was active while saving.
    CPPUNIT_ASSERT(xNameAccess->hasByName("ObjectReplacements/Object 1"));

    // Dispose the document while LOK is still active to avoid leaks.
    mxComponent->dispose();
    mxComponent.clear();
    comphelper::LibreOfficeKit::setActive(false);
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/uibase/app/docsh.cxx b/sw/source/uibase/app/docsh.cxx
index 229deca..b6c0df3 100644
--- a/sw/source/uibase/app/docsh.cxx
+++ b/sw/source/uibase/app/docsh.cxx
@@ -1276,6 +1276,14 @@ void SwDocShell::CalcLayoutForOLEObjects()
    if (!m_pWrtShell)
        return;

    if (m_pView && m_pView->GetIPClient())
    {
        // We have an active OLE edit: allow link updates, so an up to date replacement graphic can
        // be created.
        comphelper::EmbeddedObjectContainer& rEmbeddedObjectContainer = getEmbeddedObjectContainer();
        rEmbeddedObjectContainer.setUserAllowsLinkUpdate(true);
    }

    SwIterator<SwContentNode,SwFormatColl> aIter( *m_xDoc->GetDfltGrfFormatColl() );
    for( SwContentNode* pNd = aIter.First(); pNd; pNd = aIter.Next() )
    {