activate basic gnumeric support in experimental mode

Please note that this is nothing mroe than a technical demo showing the
great opportunities provided by orcus.
It only imports some basic objects for now but provides the basis for
the future calc filter framework.

Change-Id: I6c6fb8d07e33482b2efdcbbe9a0f43224c5aa5a1

framework/source/loadenv/loadenv.cxx

@@ -32,6 +32,9 @@
 #include <services.h>
 #include <comphelper/interaction.hxx>
 #include <framework/interaction.hxx>
+#include <comphelper/processfactory.hxx>
+#include <comphelper/configuration.hxx>
+#include "officecfg/Office/Common.hxx"
 
 #include <com/sun/star/task/ErrorCodeRequest.hpp>
 #include <com/sun/star/uno/RuntimeException.hpp>
@@ -703,15 +706,22 @@ LoadEnv::EContentType LoadEnv::classifyContent(const ::rtl::OUString&
 
 namespace {
 
-#if 1
+#if 0
+// TODO: We will reinstate this function later, so don't remove this!
 bool queryOrcusTypeAndFilter(const uno::Sequence<beans::PropertyValue>&, OUString&, OUString&)
 {
     return false;
 }
 #else
-// TODO: We will reinstate this function later, so don't remove this!
 bool queryOrcusTypeAndFilter(const uno::Sequence<beans::PropertyValue>& rDescriptor, OUString& rType, OUString& rFilter)
 {
+    // depending on the experimental mode
+    uno::Reference< uno::XComponentContext > xContext = comphelper::getProcessComponentContext();
+    if (!xContext.is() || !officecfg::Office::Common::Misc::ExperimentalMode::get(xContext))
+    {
+        return false;
+    }
+
     OUString aURL;
     sal_Int32 nSize = rDescriptor.getLength();
     for (sal_Int32 i = 0; i < nSize; ++i)
@@ -727,13 +737,21 @@ bool queryOrcusTypeAndFilter(const uno::Sequence<beans::PropertyValue>& rDescrip
     if (aURL.isEmpty() || aURL.copy(0,8).equalsIgnoreAsciiCase("private:"))
         return false;
 
-    if (aURL.endsWith(".csv"))
+    if(aURL.endsWith(".gnumeric"))
+    {
+        rType = "generic_Text";
+        rFilter = "orcus-gnumeric";
+        return true;
+    }
+#if 0
+    else if (aURL.endsWith(".csv"))
     {
         // Use .csv as the first test file type.
         rType = "generic_Text";
         rFilter = "orcus-test-filter";
         return true;
     }
+#endif
 
     return false;
 }

sc/inc/orcusfilters.hxx

@@ -29,6 +29,8 @@ public:
 
     virtual bool importCSV(ScDocument& rDoc, const rtl::OUString& rPath) const = 0;
 
+    virtual bool importGnumeric(ScDocument& rDoc, const rtl::OUString& rPath) const = 0;
+
     /**
      * Create a context for XML file.  The context object stores session
      * information for each unique XML file.  You must create a new context

sc/source/filter/inc/orcusfiltersimpl.hxx

@@ -21,6 +21,7 @@ public:
     static rtl::OString toSystemPath(const rtl::OUString& rPath);
 
     virtual bool importCSV(ScDocument& rDoc, const rtl::OUString& rPath) const;
+    virtual bool importGnumeric(ScDocument& rDoc, const rtl::OUString& rPath) const;
 
     virtual ScOrcusXMLContext* createXMLContext(ScDocument& rDoc, const rtl::OUString& rPath) const;
 };

sc/source/filter/inc/orcusinterface.hxx

@@ -17,6 +17,8 @@
 
 #include <boost/ptr_container/ptr_vector.hpp>
 
+#include <map>
+
 class ScDocument;
 class ScOrcusSheet;
 class ScRangeData;

sc/source/filter/orcus/orcusfiltersimpl.cxx

@@ -16,6 +16,7 @@
 
 #include <orcus/spreadsheet/import_interface.hpp>
 #include <orcus/orcus_csv.hpp>
+#include <orcus/orcus_gnumeric.hpp>
 #include <orcus/global.hpp>
 
 #ifdef WNT
@@ -50,6 +51,26 @@ bool ScOrcusFiltersImpl::importCSV(ScDocument& rDoc, const OUString& rPath) cons
     return true;
 }
 
+bool ScOrcusFiltersImpl::importGnumeric(ScDocument& rDoc, const OUString& rPath) const
+{
+    ScOrcusFactory aFactory(rDoc);
+    OString aSysPath = toSystemPath(rPath);
+    const char* path = aSysPath.getStr();
+
+    try
+    {
+        orcus::orcus_gnumeric filter(&aFactory);
+        filter.read_file(path);
+    }
+    catch (const std::exception& e)
+    {
+        SAL_WARN("sc", "Unable to load gnumeric file! " << e.what());
+        return false;
+    }
+
+    return true;
+}
+
 ScOrcusXMLContext* ScOrcusFiltersImpl::createXMLContext(ScDocument& rDoc, const rtl::OUString& rPath) const
 {
     return new ScOrcusXMLContextImpl(rDoc, rPath);

sc/source/ui/docshell/docsh.cxx

@@ -1426,7 +1426,7 @@ bool ScDocShell::LoadExternal(SfxMedium& rMed, const OUString& rProvider)
         if (!pOrcus)
             return false;
 
-        if (!pOrcus->importCSV(aDocument, rMed.GetName()))
+        if (!pOrcus->importGnumeric(aDocument, rMed.GetName()))
             return false;
 
         FinishedLoading(SFX_LOADED_MAINDOCUMENT | SFX_LOADED_IMAGES);