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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* 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/.
*/
#ifndef INCLUDED_WRITERPERFECT_INC_WRITERPERFECT_IMPORTFILTER_HXX
#define INCLUDED_WRITERPERFECT_INC_WRITERPERFECT_IMPORTFILTER_HXX
#include <libodfgen/libodfgen.hxx>
#include <librevenge/librevenge.h>
#include <librevenge-stream/librevenge-stream.h>
#include <com/sun/star/beans/PropertyValue.hpp>
#include <com/sun/star/document/XExtendedFilterDetection.hpp>
#include <com/sun/star/document/XFilter.hpp>
#include <com/sun/star/document/XImporter.hpp>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XSeekable.hpp>
#include <com/sun/star/lang/XInitialization.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/uno/Reference.h>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/xml/sax/InputSource.hpp>
#include <com/sun/star/xml/sax/XDocumentHandler.hpp>
#include <osl/diagnose.h>
#include <cppuhelper/implbase.hxx>
#include <unotools/mediadescriptor.hxx>
#include <vcl/svapp.hxx>
#include <vcl/weld.hxx>
#include "DocumentHandler.hxx"
#include "WPXSvInputStream.hxx"
#include <xmloff/attrlist.hxx>
#include "DocumentHandlerFor.hxx"
namespace writerperfect
{
namespace detail
{
template <class Generator>
class ImportFilterImpl
: public cppu::WeakImplHelper<css::document::XFilter, css::document::XImporter,
css::document::XExtendedFilterDetection,
css::lang::XInitialization>
{
public:
ImportFilterImpl(const css::uno::Reference<css::uno::XComponentContext>& rxContext)
: mxContext(rxContext)
{
}
const css::uno::Reference<css::uno::XComponentContext>& getXContext() const
{
return mxContext;
}
// XFilter
virtual sal_Bool SAL_CALL
filter(const css::uno::Sequence<css::beans::PropertyValue>& rDescriptor) override
{
utl::MediaDescriptor aDescriptor(rDescriptor);
css::uno::Reference<css::io::XInputStream> xInputStream;
aDescriptor[utl::MediaDescriptor::PROP_INPUTSTREAM()] >>= xInputStream;
if (!xInputStream.is())
{
OSL_ASSERT(false);
return false;
}
css::uno::Reference<css::awt::XWindow> xDialogParent;
aDescriptor["ParentWindow"] >>= xDialogParent;
// An XML import service: what we push sax messages to..
css::uno::Reference<css::xml::sax::XDocumentHandler> xInternalHandler(
mxContext->getServiceManager()->createInstanceWithContext(
DocumentHandlerFor<Generator>::name(), mxContext),
css::uno::UNO_QUERY_THROW);
// The XImporter sets up an empty target document for XDocumentHandler to write to..
css::uno::Reference<css::document::XImporter> xImporter(xInternalHandler,
css::uno::UNO_QUERY);
xImporter->setTargetDocument(mxDoc);
// OO Graphics Handler: abstract class to handle document SAX messages, concrete implementation here
// writes to in-memory target doc
DocumentHandler aHandler(xInternalHandler);
WPXSvInputStream input(xInputStream);
Generator exporter;
exporter.addDocumentHandler(&aHandler, ODF_FLAT_XML);
doRegisterHandlers(exporter);
return doImportDocument(Application::GetFrameWeld(xDialogParent), input, exporter,
aDescriptor);
}
virtual void SAL_CALL cancel() override {}
// XImporter
const css::uno::Reference<css::lang::XComponent>& getTargetDocument() const { return mxDoc; }
virtual void SAL_CALL
setTargetDocument(const css::uno::Reference<css::lang::XComponent>& xDoc) override
{
mxDoc = xDoc;
}
//XExtendedFilterDetection
virtual OUString SAL_CALL
detect(css::uno::Sequence<css::beans::PropertyValue>& Descriptor) override
{
OUString sTypeName;
sal_Int32 nLength = Descriptor.getLength();
sal_Int32 location = nLength;
const css::beans::PropertyValue* pValue = Descriptor.getConstArray();
css::uno::Reference<css::io::XInputStream> xInputStream;
for (sal_Int32 i = 0; i < nLength; i++)
{
if (pValue[i].Name == "TypeName")
location = i;
else if (pValue[i].Name == "InputStream")
pValue[i].Value >>= xInputStream;
}
if (!xInputStream.is())
return OUString();
WPXSvInputStream input(xInputStream);
if (doDetectFormat(input, sTypeName))
{
assert(!sTypeName.isEmpty());
if (location == nLength)
{
Descriptor.realloc(nLength + 1);
Descriptor[location].Name = "TypeName";
}
Descriptor[location].Value <<= sTypeName;
}
return sTypeName;
}
// XInitialization
virtual void SAL_CALL initialize(const css::uno::Sequence<css::uno::Any>& aArguments) override
{
css::uno::Sequence<css::beans::PropertyValue> aAnySeq;
sal_Int32 nLength = aArguments.getLength();
if (nLength && (aArguments[0] >>= aAnySeq))
{
const css::beans::PropertyValue* pValue = aAnySeq.getConstArray();
nLength = aAnySeq.getLength();
for (sal_Int32 i = 0; i < nLength; i++)
{
if (pValue[i].Name == "Type")
{
pValue[i].Value >>= msFilterName;
break;
}
}
}
}
private:
virtual bool doDetectFormat(librevenge::RVNGInputStream& rInput, OUString& rTypeName) = 0;
virtual bool doImportDocument(weld::Window* pParent, librevenge::RVNGInputStream& rInput,
Generator& rGenerator, utl::MediaDescriptor& rDescriptor)
= 0;
virtual void doRegisterHandlers(Generator&){};
css::uno::Reference<css::uno::XComponentContext> mxContext;
css::uno::Reference<css::lang::XComponent> mxDoc;
OUString msFilterName;
};
}
/** A base class for import filters.
*/
template <class Generator>
struct ImportFilter : public cppu::ImplInheritanceHelper<detail::ImportFilterImpl<Generator>,
css::lang::XServiceInfo>
{
ImportFilter(const css::uno::Reference<css::uno::XComponentContext>& rxContext)
: cppu::ImplInheritanceHelper<detail::ImportFilterImpl<Generator>, css::lang::XServiceInfo>(
rxContext)
{
}
};
}
#endif // INCLUDED_WRITERPERFECT_INC_WRITERPERFECT_IMPORTFILTER_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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