Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  */
       9             : 
      10             : #include <svx/extedit.hxx>
      11             : 
      12             : #include <vcl/svapp.hxx>
      13             : #include <vcl/graph.hxx>
      14             : #include <vcl/cvtgrf.hxx>
      15             : #include <vcl/graphicfilter.hxx>
      16             : #include <svx/xoutbmp.hxx>
      17             : #include <svx/graphichelper.hxx>
      18             : #include <svx/svdpagv.hxx>
      19             : #include <svx/svdograf.hxx>
      20             : #include <svx/fmview.hxx>
      21             : #include <svtools/grfmgr.hxx>
      22             : #include <sfx2/viewfrm.hxx>
      23             : #include <sfx2/bindings.hxx>
      24             : #include <salhelper/thread.hxx>
      25             : #include <osl/file.hxx>
      26             : #include <osl/thread.hxx>
      27             : #include <osl/process.h>
      28             : #include <osl/time.h>
      29             : #include <svtools/filechangedchecker.hxx>
      30             : #include <unotools/ucbstreamhelper.hxx>
      31             : #include <comphelper/processfactory.hxx>
      32             : #include <boost/bind.hpp>
      33             : #include <boost/scoped_ptr.hpp>
      34             : 
      35             : #include <com/sun/star/system/SystemShellExecute.hpp>
      36             : #include <com/sun/star/system/SystemShellExecuteFlags.hpp>
      37             : 
      38             : using namespace css::uno;
      39             : using namespace css::system;
      40             : 
      41           0 : ExternalToolEdit::ExternalToolEdit()
      42             : {
      43           0 : }
      44             : 
      45           0 : ExternalToolEdit::~ExternalToolEdit()
      46             : {
      47           0 : }
      48             : 
      49           0 : void ExternalToolEdit::HandleCloseEvent(ExternalToolEdit* pData)
      50             : {
      51           0 :     Graphic newGraphic;
      52             : 
      53             :     //import the temp file image stream into the newGraphic
      54           0 :     boost::scoped_ptr<SvStream> pStream(utl::UcbStreamHelper::CreateStream(pData->m_aFileName, StreamMode::READ));
      55           0 :     if(pStream)
      56             :     {
      57           0 :         GraphicConverter::Import(*pStream, newGraphic);
      58             : 
      59             :         // Now update the Graphic in the shell by re-reading from the newGraphic
      60           0 :         pData->Update( newGraphic );
      61           0 :     }
      62           0 : }
      63             : 
      64           0 : void ExternalToolEdit::StartListeningEvent()
      65             : {
      66             :     //Start an event listener implemented via VCL timeout
      67             :     assert(!m_pChecker.get());
      68             :     m_pChecker.reset(new FileChangedChecker(
      69           0 :             m_aFileName, ::boost::bind(&HandleCloseEvent, this)));
      70           0 : }
      71             : 
      72             : // self-destructing thread to make shell execute async
      73           0 : class ExternalToolEditThread
      74             :     : public ::salhelper::Thread
      75             : {
      76             : private:
      77             :     OUString const m_aFileName;
      78             : 
      79             :     virtual void execute() SAL_OVERRIDE;
      80             : 
      81             : public:
      82           0 :     explicit ExternalToolEditThread(OUString const& rFileName)
      83             :         : ::salhelper::Thread("ExternalToolEdit")
      84           0 :         , m_aFileName(rFileName)
      85           0 :     {}
      86             : };
      87             : 
      88           0 : void ExternalToolEditThread::execute()
      89             : {
      90             :     try
      91             :     {
      92             :         Reference<XSystemShellExecute> const xSystemShellExecute(
      93           0 :             SystemShellExecute::create( ::comphelper::getProcessComponentContext()));
      94           0 :         xSystemShellExecute->execute(m_aFileName, OUString(),
      95           0 :                 SystemShellExecuteFlags::URIS_ONLY);
      96             :     }
      97           0 :     catch (Exception const& e)
      98             :     {
      99             :         SAL_WARN("svx", "ExternalToolEditThread: exception: " << e.Message);
     100             :     }
     101           0 : }
     102             : 
     103           0 : void ExternalToolEdit::Edit(GraphicObject const*const pGraphicObject)
     104             : {
     105             :     //Get the graphic from the GraphicObject
     106           0 :     const Graphic aGraphic = pGraphicObject->GetGraphic();
     107             : 
     108             :     //get the Preferred File Extension for this graphic
     109           0 :     OUString fExtension;
     110           0 :     GraphicHelper::GetPreferredExtension(fExtension, aGraphic);
     111             : 
     112             :     //Create the temp File
     113           0 :     OUString aTempFileBase;
     114           0 :     OUString aTempFileName;
     115             : 
     116             :     osl::FileBase::RC rc =
     117           0 :         osl::FileBase::createTempFile(nullptr, nullptr, &aTempFileBase);
     118           0 :     if (osl::FileBase::E_None != rc)
     119             :     {
     120             :         SAL_WARN("svx", "ExternalToolEdit::Edit: cannot create temp file");
     121           0 :         return;
     122             :     }
     123             : 
     124             :     // Move it to a file name with image extension properly set
     125           0 :     aTempFileName = aTempFileBase + "." + OUString(fExtension);
     126             :     // FIXME: this is pretty stupid, need a better osl temp file API
     127           0 :     rc = osl::File::move(aTempFileBase, aTempFileName);
     128           0 :     if (osl::FileBase::E_None != rc)
     129             :     {
     130             :         SAL_WARN("svx", "ExternalToolEdit::Edit: cannot move temp file");
     131           0 :         return;
     132             :     }
     133             : 
     134             :     //Write Graphic to the Temp File
     135           0 :     GraphicFilter& rGraphicFilter = GraphicFilter::GetGraphicFilter();
     136           0 :     sal_uInt16 nFilter(rGraphicFilter.GetExportFormatNumberForShortName(fExtension));
     137             : 
     138           0 :     OUString aFilter(rGraphicFilter.GetExportFormatShortName(nFilter));
     139             : 
     140             :     // Write the Graphic to the file now
     141           0 :     XOutBitmap::WriteGraphic(aGraphic, aTempFileName, aFilter, XOUTBMP_USE_NATIVE_IF_POSSIBLE | XOUTBMP_DONT_EXPAND_FILENAME);
     142             : 
     143             :     // There is a possibility that sPath extension might have been changed if the
     144             :     // provided extension is not writable
     145           0 :     m_aFileName = aTempFileName;
     146             : 
     147             :     //Create a thread
     148             : 
     149             :     rtl::Reference<ExternalToolEditThread> const pThread(
     150           0 :             new ExternalToolEditThread(m_aFileName));
     151           0 :     pThread->launch();
     152             : 
     153           0 :     StartListeningEvent();
     154             : }
     155             : 
     156           0 : SdrExternalToolEdit::SdrExternalToolEdit(
     157             :         FmFormView *const pView, SdrObject *const pObj)
     158             :     : m_pView(pView)
     159           0 :     , m_pObj(pObj)
     160             : {
     161             :     assert(m_pObj && m_pView);
     162           0 :     StartListening(*m_pObj->GetModel());
     163           0 : }
     164             : 
     165             : 
     166           0 : void SdrExternalToolEdit::Notify(SfxBroadcaster & rBC, SfxHint const& rHint)
     167             : {
     168           0 :     SdrHint const*const pSdrHint(dynamic_cast<SdrHint const*>(&rHint));
     169           0 :     if (pSdrHint
     170           0 :         && (HINT_MODELCLEARED == pSdrHint->GetKind()
     171           0 :             || (pSdrHint->GetObject() == m_pObj
     172           0 :                 && HINT_OBJREMOVED == pSdrHint->GetKind())))
     173             :     {
     174           0 :         m_pView = 0;
     175           0 :         m_pObj = 0;
     176           0 :         m_pChecker.reset(); // avoid modifying deleted object
     177           0 :         EndListening(rBC);
     178             :     }
     179           0 : }
     180             : 
     181           0 : void SdrExternalToolEdit::Update(Graphic & rGraphic)
     182             : {
     183             :     assert(m_pObj && m_pView); // timer should be deleted by Notify() too
     184           0 :     SdrPageView *const pPageView = m_pView->GetSdrPageView();
     185           0 :     if (pPageView)
     186             :     {
     187           0 :         SdrGrafObj *const pNewObj(static_cast<SdrGrafObj*>(m_pObj->Clone()));
     188             :         assert(pNewObj);
     189             :         OUString const description =
     190           0 :             m_pView->GetDescriptionOfMarkedObjects() + " External Edit";
     191           0 :         m_pView->BegUndo(description);
     192           0 :         pNewObj->SetGraphicObject(rGraphic);
     193             :         // set to new object before ReplaceObjectAtView() so that Notify() will
     194             :         // not delete the running timer and crash
     195           0 :         SdrObject *const pOldObj = m_pObj;
     196           0 :         m_pObj = pNewObj;
     197           0 :         m_pView->ReplaceObjectAtView(pOldObj, *pPageView, pNewObj);
     198           0 :         m_pView->EndUndo();
     199             :     }
     200         435 : }
     201             : 
     202             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */