1 files changed, 265 insertions, 0 deletions
diff --git a/sc/source/ui/docshell/documentlinkmgr.cxx b/sc/source/ui/docshell/documentlinkmgr.cxx
new file mode 100644
index 000000000..1796b02b5
--- /dev/null
+++ b/sc/source/ui/docshell/documentlinkmgr.cxx
@@ -0,0 +1,265 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <comphelper/doublecheckedinit.hxx>
+#include <documentlinkmgr.hxx>
+#include <datastream.hxx>
+#include <ddelink.hxx>
+#include <webservicelink.hxx>
+#include <strings.hrc>
+#include <scresid.hxx>
+#include <o3tl/deleter.hxx>
+#include <svx/svdoole2.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/weld.hxx>
+
+#include <memory>
+
+namespace sc {
+
+struct DocumentLinkManagerImpl
+{
+    SfxObjectShell* mpShell;
+    std::unique_ptr<DataStream, o3tl::default_delete<DataStream>> mpDataStream;
+    std::atomic<sfx2::LinkManager*> mpLinkManager;
+
+    DocumentLinkManagerImpl(const DocumentLinkManagerImpl&) = delete;
+    const DocumentLinkManagerImpl& operator=(const DocumentLinkManagerImpl&) = delete;
+
+    explicit DocumentLinkManagerImpl(SfxObjectShell* pShell)
+        : mpShell(pShell), mpLinkManager(nullptr) {}
+
+    ~DocumentLinkManagerImpl()
+    {
+        // Shared base links
+        sfx2::LinkManager* linkManager = mpLinkManager;
+        if (linkManager)
+        {
+            sfx2::SvLinkSources aTemp = linkManager->GetServers();
+            for (const auto& pLinkSource : aTemp)
+                pLinkSource->Closed();
+
+            if (!linkManager->GetLinks().empty())
+                linkManager->Remove(0, linkManager->GetLinks().size());
+        }
+        delete linkManager;
+    }
+};
+
+DocumentLinkManager::DocumentLinkManager( SfxObjectShell* pShell ) :
+    mpImpl(new DocumentLinkManagerImpl(pShell)) {}
+
+DocumentLinkManager::~DocumentLinkManager()
+{
+}
+
+void DocumentLinkManager::setDataStream( DataStream* p )
+{
+    mpImpl->mpDataStream.reset(p);
+}
+
+DataStream* DocumentLinkManager::getDataStream()
+{
+    return mpImpl->mpDataStream.get();
+}
+
+const DataStream* DocumentLinkManager::getDataStream() const
+{
+    return mpImpl->mpDataStream.get();
+}
+
+sfx2::LinkManager* DocumentLinkManager::getLinkManager( bool bCreate )
+{
+    if (bCreate && mpImpl->mpShell)
+        return comphelper::doubleCheckedInit( mpImpl->mpLinkManager,
+            [this]() { return new sfx2::LinkManager(mpImpl->mpShell); } );
+    return mpImpl->mpLinkManager;
+}
+
+const sfx2::LinkManager* DocumentLinkManager::getExistingLinkManager() const
+{
+    return mpImpl->mpLinkManager;
+}
+
+bool DocumentLinkManager::idleCheckLinks()
+{
+    sfx2::LinkManager* pMgr = mpImpl->mpLinkManager;
+    if (!pMgr)
+        return false;
+
+    bool bAnyLeft = false;
+    const sfx2::SvBaseLinks& rLinks = pMgr->GetLinks();
+    for (const auto & rLink : rLinks)
+    {
+        sfx2::SvBaseLink* pBase = rLink.get();
+        ScDdeLink* pDdeLink = dynamic_cast<ScDdeLink*>(pBase);
+        if (!pDdeLink || !pDdeLink->NeedsUpdate())
+            continue;
+
+        pDdeLink->TryUpdate();
+        if (pDdeLink->NeedsUpdate()) // Was not successful?
+            bAnyLeft = true;
+    }
+
+    return bAnyLeft;
+}
+
+bool DocumentLinkManager::hasDdeLinks() const
+{
+    return hasDdeOrOleOrWebServiceLinks(true, false, false);
+}
+
+bool DocumentLinkManager::hasDdeOrOleOrWebServiceLinks() const
+{
+    return hasDdeOrOleOrWebServiceLinks(true, true, true);
+}
+
+bool DocumentLinkManager::hasDdeOrOleOrWebServiceLinks(bool bDde, bool bOle, bool bWebService) const
+{
+    sfx2::LinkManager* pMgr = mpImpl->mpLinkManager;
+    if (!pMgr)
+        return false;
+
+    const sfx2::SvBaseLinks& rLinks = pMgr->GetLinks();
+    for (const auto & rLink : rLinks)
+    {
+        sfx2::SvBaseLink* pBase = rLink.get();
+        if (bDde && dynamic_cast<ScDdeLink*>(pBase))
+            return true;
+        if (bOle && dynamic_cast<SdrEmbedObjectLink*>(pBase))
+            return true;
+        if (bWebService && dynamic_cast<ScWebServiceLink*>(pBase))
+            return true;
+    }
+
+    return false;
+}
+
+bool DocumentLinkManager::updateDdeOrOleOrWebServiceLinks(weld::Window* pWin)
+{
+    sfx2::LinkManager* pMgr = mpImpl->mpLinkManager;
+    if (!pMgr)
+        return false;
+
+    const sfx2::SvBaseLinks& rLinks = pMgr->GetLinks();
+
+    // If the update takes longer, reset all values so that nothing
+    // old (wrong) is left behind
+    bool bAny = false;
+    for (const auto & rLink : rLinks)
+    {
+        sfx2::SvBaseLink* pBase = rLink.get();
+
+        SdrEmbedObjectLink* pOleLink = dynamic_cast<SdrEmbedObjectLink*>(pBase);
+        if (pOleLink)
+        {
+            pOleLink->Update();
+            continue;
+        }
+
+        ScWebServiceLink* pWebserviceLink = dynamic_cast<ScWebServiceLink*>(pBase);
+        if (pWebserviceLink)
+        {
+            pWebserviceLink->Update();
+            continue;
+        }
+
+        ScDdeLink* pDdeLink = dynamic_cast<ScDdeLink*>(pBase);
+        if (!pDdeLink)
+            continue;
+
+        if (pDdeLink->Update())
+            bAny = true;
+        else
+        {
+            // Update failed.  Notify the user.
+            const OUString& aFile = pDdeLink->GetTopic();
+            const OUString& aElem = pDdeLink->GetItem();
+            const OUString& aType = pDdeLink->GetAppl();
+
+            OUString sMessage =
+                ScResId(SCSTR_DDEDOC_NOT_LOADED) +
+                "\n\n"
+                "Source : " +
+                aFile +
+                "\nElement : " +
+                aElem +
+                "\nType : " +
+                aType;
+            std::unique_ptr<weld::MessageDialog> xBox(Application::CreateMessageDialog(pWin,
+                                                      VclMessageType::Warning, VclButtonsType::Ok,
+                                                      sMessage));
+            xBox->run();
+        }
+    }
+
+    pMgr->CloseCachedComps();
+
+    return bAny;
+}
+
+void DocumentLinkManager::updateDdeLink( const OUString& rAppl, const OUString& rTopic, const OUString& rItem )
+{
+    sfx2::LinkManager* pMgr = mpImpl->mpLinkManager;
+    if (!pMgr)
+        return;
+
+    const sfx2::SvBaseLinks& rLinks = pMgr->GetLinks();
+
+    for (const auto & rLink : rLinks)
+    {
+        ::sfx2::SvBaseLink* pBase = rLink.get();
+        ScDdeLink* pDdeLink = dynamic_cast<ScDdeLink*>(pBase);
+        if (!pDdeLink)
+            continue;
+
+        if ( pDdeLink->GetAppl() == rAppl &&
+             pDdeLink->GetTopic() == rTopic &&
+             pDdeLink->GetItem() == rItem )
+        {
+            pDdeLink->TryUpdate();
+            // Could be multiple (Mode), so continue searching
+        }
+    }
+}
+
+size_t DocumentLinkManager::getDdeLinkCount() const
+{
+    sfx2::LinkManager* pMgr = mpImpl->mpLinkManager;
+    if (!pMgr)
+        return 0;
+
+    size_t nDdeCount = 0;
+    const sfx2::SvBaseLinks& rLinks = pMgr->GetLinks();
+    for (const auto & rLink : rLinks)
+    {
+        ::sfx2::SvBaseLink* pBase = rLink.get();
+        ScDdeLink* pDdeLink = dynamic_cast<ScDdeLink*>(pBase);
+        if (!pDdeLink)
+            continue;
+
+        ++nDdeCount;
+    }
+
+    return nDdeCount;
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */