1 files changed, 204 insertions, 0 deletions
diff --git a/svx/source/core/extedit.cxx b/svx/source/core/extedit.cxx
new file mode 100644
index 000000000..3225e47f0
--- /dev/null
+++ b/svx/source/core/extedit.cxx
@@ -0,0 +1,204 @@
+/* -*- 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/.
+ */
+
+#include <svx/extedit.hxx>
+
+#include <vcl/graph.hxx>
+#include <vcl/GraphicObject.hxx>
+#include <vcl/cvtgrf.hxx>
+#include <vcl/graphicfilter.hxx>
+#include <svx/xoutbmp.hxx>
+#include <svx/graphichelper.hxx>
+#include <svx/svdpagv.hxx>
+#include <svx/svdograf.hxx>
+#include <svx/fmview.hxx>
+#include <salhelper/thread.hxx>
+#include <sal/log.hxx>
+#include <osl/file.hxx>
+#include <svtools/filechangedchecker.hxx>
+#include <tools/diagnose_ex.h>
+#include <unotools/ucbstreamhelper.hxx>
+#include <comphelper/processfactory.hxx>
+
+#include <memory>
+
+#include <com/sun/star/system/SystemShellExecute.hpp>
+#include <com/sun/star/system/SystemShellExecuteFlags.hpp>
+
+using namespace css::uno;
+using namespace css::system;
+
+ExternalToolEdit::ExternalToolEdit()
+{
+}
+
+ExternalToolEdit::~ExternalToolEdit()
+{
+}
+
+void ExternalToolEdit::HandleCloseEvent(ExternalToolEdit* pData)
+{
+    Graphic newGraphic;
+
+    //import the temp file image stream into the newGraphic
+    std::unique_ptr<SvStream> pStream(utl::UcbStreamHelper::CreateStream(pData->m_aFileName, StreamMode::READ));
+    if(pStream)
+    {
+        GraphicConverter::Import(*pStream, newGraphic);
+
+        // Now update the Graphic in the shell by re-reading from the newGraphic
+        pData->Update( newGraphic );
+    }
+}
+
+void ExternalToolEdit::StartListeningEvent()
+{
+    //Start an event listener implemented via VCL timeout
+    assert(!m_pChecker);
+    m_pChecker.reset(new FileChangedChecker(
+            m_aFileName, [this] () { return HandleCloseEvent(this); }));
+}
+
+namespace {
+
+// self-destructing thread to make shell execute async
+class ExternalToolEditThread
+    : public ::salhelper::Thread
+{
+private:
+    OUString const m_aFileName;
+
+    virtual void execute() override;
+
+public:
+    explicit ExternalToolEditThread(OUString const& rFileName)
+        : ::salhelper::Thread("ExternalToolEdit")
+        , m_aFileName(rFileName)
+    {}
+};
+
+}
+
+void ExternalToolEditThread::execute()
+{
+    try
+    {
+        Reference<XSystemShellExecute> const xSystemShellExecute(
+            SystemShellExecute::create( ::comphelper::getProcessComponentContext()));
+        xSystemShellExecute->execute(m_aFileName, OUString(),
+                SystemShellExecuteFlags::URIS_ONLY);
+    }
+    catch (Exception const&)
+    {
+        TOOLS_WARN_EXCEPTION("svx", "ExternalToolEditThread");
+    }
+}
+
+void ExternalToolEdit::Edit(GraphicObject const*const pGraphicObject)
+{
+    //Get the graphic from the GraphicObject
+    const Graphic& aGraphic = pGraphicObject->GetGraphic();
+
+    //get the Preferred File Extension for this graphic
+    OUString fExtension;
+    GraphicHelper::GetPreferredExtension(fExtension, aGraphic);
+
+    //Create the temp File
+    OUString aTempFileBase;
+    OUString aTempFileName;
+
+    osl::FileBase::RC rc =
+        osl::FileBase::createTempFile(nullptr, nullptr, &aTempFileBase);
+    if (osl::FileBase::E_None != rc)
+    {
+        SAL_WARN("svx", "ExternalToolEdit::Edit: cannot create temp file");
+        return;
+    }
+
+    // Move it to a file name with image extension properly set
+    aTempFileName = aTempFileBase + "." + fExtension;
+    // FIXME: this is pretty stupid, need a better osl temp file API
+    rc = osl::File::move(aTempFileBase, aTempFileName);
+    if (osl::FileBase::E_None != rc)
+    {
+        SAL_WARN("svx", "ExternalToolEdit::Edit: cannot move temp file");
+        return;
+    }
+
+    //Write Graphic to the Temp File
+    GraphicFilter& rGraphicFilter = GraphicFilter::GetGraphicFilter();
+    sal_uInt16 nFilter(rGraphicFilter.GetExportFormatNumberForShortName(fExtension));
+
+    OUString aFilter(rGraphicFilter.GetExportFormatShortName(nFilter));
+
+    // Write the Graphic to the file now
+    XOutBitmap::WriteGraphic(aGraphic, aTempFileName, aFilter, XOutFlags::UseNativeIfPossible | XOutFlags::DontExpandFilename);
+
+    // There is a possibility that sPath extension might have been changed if the
+    // provided extension is not writable
+    m_aFileName = aTempFileName;
+
+    //Create a thread
+
+    rtl::Reference<ExternalToolEditThread> const pThread(
+            new ExternalToolEditThread(m_aFileName));
+    pThread->launch();
+
+    StartListeningEvent();
+}
+
+SdrExternalToolEdit::SdrExternalToolEdit(
+    FmFormView* pView,
+    SdrObject* pObj)
+:   m_pView(pView)
+    ,m_pObj(pObj)
+{
+    assert(m_pObj && m_pView);
+    StartListening(m_pObj->getSdrModelFromSdrObject());
+}
+
+
+void SdrExternalToolEdit::Notify(SfxBroadcaster & rBC, SfxHint const& rHint)
+{
+    if (rHint.GetId() != SfxHintId::ThisIsAnSdrHint)
+        return;
+    SdrHint const*const pSdrHint(static_cast<SdrHint const*>(&rHint));
+    if (SdrHintKind::ModelCleared == pSdrHint->GetKind()
+            || (pSdrHint->GetObject() == m_pObj
+                && SdrHintKind::ObjectRemoved == pSdrHint->GetKind()))
+    {
+        m_pView = nullptr;
+        m_pObj = nullptr;
+        m_pChecker.reset(); // avoid modifying deleted object
+        EndListening(rBC);
+    }
+}
+
+void SdrExternalToolEdit::Update(Graphic & rGraphic)
+{
+    assert(m_pObj && m_pView); // timer should be deleted by Notify() too
+    SdrPageView *const pPageView = m_pView->GetSdrPageView();
+    if (!pPageView)
+        return;
+
+    SdrGrafObj *const pNewObj(static_cast<SdrGrafObj*>(m_pObj->CloneSdrObject(m_pObj->getSdrModelFromSdrObject())));
+    assert(pNewObj);
+    OUString const description =
+        m_pView->GetDescriptionOfMarkedObjects() + " External Edit";
+    m_pView->BegUndo(description);
+    pNewObj->SetGraphicObject(rGraphic);
+    // set to new object before ReplaceObjectAtView() so that Notify() will
+    // not delete the running timer and crash
+    SdrObject *const pOldObj = m_pObj;
+    m_pObj = pNewObj;
+    m_pView->ReplaceObjectAtView(pOldObj, *pPageView, pNewObj);
+    m_pView->EndUndo();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */