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Diffstat (limited to 'writerperfect/source/impress/KeynoteImportFilter.cxx')
| -rw-r--r-- | writerperfect/source/impress/KeynoteImportFilter.cxx | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/writerperfect/source/impress/KeynoteImportFilter.cxx b/writerperfect/source/impress/KeynoteImportFilter.cxx new file mode 100644 index 000000000..ccd93e3d2 --- /dev/null +++ b/writerperfect/source/impress/KeynoteImportFilter.cxx @@ -0,0 +1,247 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* KeynoteImportFilter: Sets up the filter, and calls OdpExporter + * to do the actual filtering + * + * 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 <memory> +#include <com/sun/star/beans/NamedValue.hpp> +#include <com/sun/star/beans/PropertyValue.hpp> +#include <com/sun/star/io/XInputStream.hpp> +#include <com/sun/star/uno/Reference.h> +#include <com/sun/star/ucb/XContent.hpp> +#include <comphelper/processfactory.hxx> +#include <cppuhelper/supportsservice.hxx> + +#include <libetonyek/libetonyek.h> +#include <ucbhelper/content.hxx> +#include <unotools/ucbhelper.hxx> + +#include <DirectoryStream.hxx> +#include <WPXSvInputStream.hxx> + +#include "KeynoteImportFilter.hxx" + +using writerperfect::WPXSvInputStream; + +namespace beans = com::sun::star::beans; +namespace ucb = com::sun::star::ucb; + +bool KeynoteImportFilter::doImportDocument(weld::Window*, librevenge::RVNGInputStream& rInput, + OdpGenerator& rGenerator, utl::MediaDescriptor&) +{ + return libetonyek::EtonyekDocument::parse(&rInput, &rGenerator); +} + +bool KeynoteImportFilter::doDetectFormat(librevenge::RVNGInputStream& rInput, OUString& rTypeName) +{ + if (libetonyek::EtonyekDocument::isSupported(&rInput)) + { + rTypeName = "impress_Keynote_Document"; + return true; + } + + return false; +} + +// XExtendedFilterDetection +OUString SAL_CALL +KeynoteImportFilter::detect(css::uno::Sequence<css::beans::PropertyValue>& Descriptor) +{ + sal_Int32 nLength = Descriptor.getLength(); + sal_Int32 nNewLength = nLength + 2; + sal_Int32 nComponentDataLocation = -1; + sal_Int32 nTypeNameLocation = -1; + sal_Int32 nUCBContentLocation = -1; + bool bIsPackage = false; + bool bUCBContentChanged = false; + const beans::PropertyValue* pValue = Descriptor.getConstArray(); + css::uno::Reference<com::sun::star::io::XInputStream> xInputStream; + css::uno::Reference<ucb::XContent> xContent; + css::uno::Sequence<beans::NamedValue> lComponentDataNV; + css::uno::Sequence<beans::PropertyValue> lComponentDataPV; + bool bComponentDataNV = true; + + for (sal_Int32 i = 0; i < nLength; i++) + { + if (pValue[i].Name == "TypeName") + { + nTypeNameLocation = i; + --nNewLength; + } + if (pValue[i].Name == "ComponentData") + { + bComponentDataNV = pValue[i].Value >>= lComponentDataNV; + if (!bComponentDataNV) + pValue[i].Value >>= lComponentDataPV; + nComponentDataLocation = i; + --nNewLength; + } + else if (pValue[i].Name == "InputStream") + { + pValue[i].Value >>= xInputStream; + } + else if (pValue[i].Name == "UCBContent") + { + pValue[i].Value >>= xContent; + nUCBContentLocation = i; + } + } + + assert(nNewLength >= nLength); + + if (!xInputStream.is()) + return OUString(); + + std::unique_ptr<librevenge::RVNGInputStream> input + = std::make_unique<WPXSvInputStream>(xInputStream); + + /* Apple Keynote documents come in two variants: + * * actual files (zip), only produced by Keynote 5 (at least with + * default settings) + * * packages (IOW, directories), produced by Keynote 1-4 and again + * starting with 6. + * But since the libetonyek import only works with a stream, we need + * to pass it one for the whole package. Here we determine if that + * is needed. + * + * Note: for convenience, we also recognize that the main XML file + * from a package was passed and pass the whole package to the + * filter instead. + */ + if (xContent.is()) + { + ucbhelper::Content aContent(xContent, utl::UCBContentHelper::getDefaultCommandEnvironment(), + comphelper::getProcessComponentContext()); + try + { + if (aContent.isFolder()) + { + input = std::make_unique<writerperfect::DirectoryStream>(xContent); + bIsPackage = true; + } + } + catch (...) + { + return OUString(); + } + } + + libetonyek::EtonyekDocument::Type type = libetonyek::EtonyekDocument::TYPE_UNKNOWN; + const libetonyek::EtonyekDocument::Confidence confidence + = libetonyek::EtonyekDocument::isSupported(input.get(), &type); + if ((libetonyek::EtonyekDocument::CONFIDENCE_NONE == confidence) + || (libetonyek::EtonyekDocument::TYPE_KEYNOTE != type)) + return OUString(); + + if (confidence == libetonyek::EtonyekDocument::CONFIDENCE_SUPPORTED_PART) + { + if (bIsPackage) // we passed a directory stream, but the filter claims it's APXL file? + return OUString(); + + std::unique_ptr<writerperfect::DirectoryStream> xDir + = writerperfect::DirectoryStream::createForParent(xContent); + auto pDir = xDir.get(); + input = std::move(xDir); + if (bool(input)) + { + if (libetonyek::EtonyekDocument::CONFIDENCE_EXCELLENT + == libetonyek::EtonyekDocument::isSupported(input.get())) + { + xContent = pDir->getContent(); + bUCBContentChanged = true; + bIsPackage = true; + } + else + { + // The passed stream has been detected as APXL file, but its parent dir is not a valid Keynote + // package? Something is wrong here... + return OUString(); + } + } + } + + // we do not need to insert ComponentData if this is not a package + if (!bIsPackage && (nComponentDataLocation == -1)) + --nNewLength; + + if (nNewLength > nLength) + Descriptor.realloc(nNewLength); + auto pDescriptor = Descriptor.getArray(); + + if (nTypeNameLocation == -1) + { + assert(nLength < nNewLength); + nTypeNameLocation = nLength++; + pDescriptor[nTypeNameLocation].Name = "TypeName"; + } + + if (bIsPackage && (nComponentDataLocation == -1)) + { + assert(nLength < nNewLength); + nComponentDataLocation = nLength++; + pDescriptor[nComponentDataLocation].Name = "ComponentData"; + } + + if (bIsPackage) + { + if (bComponentDataNV) + { + const sal_Int32 nCDSize = lComponentDataNV.getLength(); + lComponentDataNV.realloc(nCDSize + 1); + beans::NamedValue aValue; + aValue.Name = "IsPackage"; + aValue.Value <<= true; + lComponentDataNV.getArray()[nCDSize] = aValue; + pDescriptor[nComponentDataLocation].Value <<= lComponentDataNV; + } + else + { + const sal_Int32 nCDSize = lComponentDataPV.getLength(); + lComponentDataPV.realloc(nCDSize + 1); + beans::PropertyValue aProp; + aProp.Name = "IsPackage"; + aProp.Value <<= true; + aProp.Handle = -1; + aProp.State = beans::PropertyState_DIRECT_VALUE; + lComponentDataPV.getArray()[nCDSize] = aProp; + pDescriptor[nComponentDataLocation].Value <<= lComponentDataPV; + } + } + + if (bUCBContentChanged) + pDescriptor[nUCBContentLocation].Value <<= xContent; + + const OUString sTypeName("impress_AppleKeynote"); + pDescriptor[nTypeNameLocation].Value <<= sTypeName; + + return sTypeName; +} + +// XServiceInfo +OUString SAL_CALL KeynoteImportFilter::getImplementationName() +{ + return "org.libreoffice.comp.Impress.KeynoteImportFilter"; +} + +sal_Bool SAL_CALL KeynoteImportFilter::supportsService(const OUString& rServiceName) +{ + return cppu::supportsService(this, rServiceName); +} + +css::uno::Sequence<OUString> SAL_CALL KeynoteImportFilter::getSupportedServiceNames() +{ + return { "com.sun.star.document.ImportFilter", "com.sun.star.document.ExtendedTypeDetection" }; +} + +extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface* +org_libreoffice_comp_Impress_KeynoteImportFilter_get_implementation( + css::uno::XComponentContext* const context, const css::uno::Sequence<css::uno::Any>&) +{ + return cppu::acquire(new KeynoteImportFilter(context)); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |