hwpfilter: create instances with uno constructors

See tdf#74608 for motivation.

And move the code out of a header file into a .cxx file.

Change-Id: I37b88e1d5173c9064f1b733b5d38fc40a463e2a8
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/98677
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

1 files changed, 124 insertions, 0 deletions

diff --git a/hwpfilter/source/hwpreader.cxx b/hwpfilter/source/hwpreader.cxx
index 4db88bcc732e..e647f3882d58 100644
--- a/hwpfilter/source/hwpreader.cxx
+++ b/hwpfilter/source/hwpreader.cxx
@@ -4816,4 +4816,128 @@ void HwpReader::parsePara(HWPPara * para)
     }
 }
 
+
+namespace
+{
+
+constexpr OUStringLiteral IMPLEMENTATION_NAME = "com.sun.comp.hwpimport.HwpImportFilter";
+constexpr OUStringLiteral SERVICE_NAME1 = "com.sun.star.document.ImportFilter";
+constexpr OUStringLiteral SERVICE_NAME2 = "com.sun.star.document.ExtendedTypeDetection";
+
+class HwpImportFilter : public WeakImplHelper< XFilter, XImporter, XServiceInfo, XExtendedFilterDetection >
+{
+public:
+    explicit HwpImportFilter(const Reference< XComponentContext >& );
+
+public:
+    // XFilter
+    virtual sal_Bool SAL_CALL filter( const Sequence< PropertyValue >& aDescriptor ) override;
+    virtual void SAL_CALL cancel() override;
+
+    // XImporter
+    virtual void SAL_CALL setTargetDocument( const Reference< XComponent >& xDoc) override;
+
+    // XServiceInfo
+    OUString SAL_CALL getImplementationName() override;
+    Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+    sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override;
+
+    //XExtendedFilterDetection
+    virtual OUString SAL_CALL detect( css::uno::Sequence< css::beans::PropertyValue >& rDescriptor ) override;
+
+private:
+    Reference< XFilter > rFilter;
+    Reference< XImporter > rImporter;
+};
+
+
+HwpImportFilter::HwpImportFilter(const Reference< XComponentContext >& rxContext)
+{
+    try {
+        Reference< XDocumentHandler > xHandler( rxContext->getServiceManager()->createInstanceWithContext( WRITER_IMPORTER_NAME, rxContext ), UNO_QUERY );
+
+        HwpReader *p = new HwpReader;
+        p->setDocumentHandler( xHandler );
+
+        Reference< XImporter > xImporter( xHandler, UNO_QUERY );
+        rImporter = xImporter;
+        Reference< XFilter > xFilter( p );
+        rFilter = xFilter;
+    }
+    catch( Exception & )
+    {
+        printf(" fail to instantiate %s\n", WRITER_IMPORTER_NAME );
+        exit( 1 );
+    }
+}
+
+sal_Bool HwpImportFilter::filter( const Sequence< PropertyValue >& aDescriptor )
+{
+    // delegate to IchitaroImpoter
+    return rFilter->filter( aDescriptor );
+}
+
+void HwpImportFilter::cancel()
+{
+    rFilter->cancel();
+}
+
+void HwpImportFilter::setTargetDocument( const Reference< XComponent >& xDoc )
+{
+        // delegate
+    rImporter->setTargetDocument( xDoc );
+}
+
+OUString HwpImportFilter::getImplementationName()
+{
+    return IMPLEMENTATION_NAME;
+}
+
+sal_Bool HwpImportFilter::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+//XExtendedFilterDetection
+OUString HwpImportFilter::detect( css::uno::Sequence< css::beans::PropertyValue >& rDescriptor )
+{
+    OUString sTypeName;
+
+    utl::MediaDescriptor aDescriptor(rDescriptor);
+    aDescriptor.addInputStream();
+
+    Reference< XInputStream > xInputStream(
+        aDescriptor[utl::MediaDescriptor::PROP_INPUTSTREAM()], UNO_QUERY);
+
+    if (xInputStream.is())
+    {
+        Sequence< sal_Int8 > aData;
+        sal_Int32 nLen = HWPIDLen;
+        if (
+             nLen == xInputStream->readBytes(aData, nLen) &&
+             detect_hwp_version(reinterpret_cast<const char*>(aData.getConstArray()))
+           )
+        {
+            sTypeName = "writer_MIZI_Hwp_97";
+        }
+    }
+
+    return sTypeName;
+}
+
+Sequence< OUString> HwpImportFilter::getSupportedServiceNames()
+{
+    return { SERVICE_NAME1, SERVICE_NAME2 };
+}
+
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+hwpfilter_HwpImportFilter_get_implementation(
+    css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new HwpImportFilter(context));
+}
+
+
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */