typedetection.hxx

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#pragma once
 
#include "basecontainer.hxx"
#include <com/sun/star/document/XTypeDetection.hpp>
#include <com/sun/star/frame/XTerminateListener.hpp>
#include <unotools/mediadescriptor.hxx>
#include <cppuhelper/compbase.hxx>
#include <cppuhelper/implbase.hxx>
#include <comphelper/compbase.hxx>
 
namespace filter::config {
 
class TerminateDetection;
 
class TypeDetection : public ::cppu::ImplInheritanceHelper< BaseContainer                 ,
                                                             css::document::XTypeDetection >
{
 
// native interface
 
    css::uno::Reference< css::uno::XComponentContext > m_xContext;
    rtl::Reference<TerminateDetection> m_xTerminateListener;
    bool m_bCancel;
 
public:
 
 
    // ctor/dtor
 
    explicit TypeDetection(const css::uno::Reference< css::uno::XComponentContext >& rxContext);
 
    void cancel()
    {
        m_bCancel = true;
    }
 
 
    virtual ~TypeDetection() override;
 
 
// private helper
 
private:
 
    static bool impl_getPreselectionForType(
        std::unique_lock<std::mutex>& rGuard,
        const OUString& sPreSelType, const css::util::URL& aParsedURL, FlatDetection& rFlatTypes, bool bDocService);
 
    static void impl_getPreselectionForDocumentService(
        std::unique_lock<std::mutex>& rGuard,
        const OUString& sPreSelDocumentService, const css::util::URL& aParsedURL, FlatDetection& rFlatTypes);
 
    static OUString impl_getTypeFromFilter(std::unique_lock<std::mutex>& rGuard, const OUString& rFilterName);
 
    static void impl_getAllFormatTypes(
        std::unique_lock<std::mutex>& rGuard,
        const css::util::URL& aParsedURL, utl::MediaDescriptor const & rDescriptor,
        FlatDetection& rFlatTypes);
 
 
    OUString impl_detectTypeFlatAndDeep(      utl::MediaDescriptor& rDescriptor   ,
                                               const FlatDetection&                 lFlatTypes    ,
                                                     bool                       bAllowDeep    ,
                                                     OUString&               rLastChance   );
 
 
    static void impl_seekStreamToZero(utl::MediaDescriptor const & rDescriptor);
 
 
    OUString impl_askDetectService(const OUString&               sDetectService,
                                                utl::MediaDescriptor& rDescriptor   );
 
 
    static OUString impl_askUserForTypeAndFilterIfAllowed(utl::MediaDescriptor& rDescriptor);
 
 
    void impl_openStream(utl::MediaDescriptor& rDescriptor);
 
 
    static bool impl_validateAndSetTypeOnDescriptor( utl::MediaDescriptor& rDescriptor,
                                                     const OUString&               sType      );
 
 
    static bool impl_validateAndSetFilterOnDescriptor(
                                                utl::MediaDescriptor& rDescriptor,
                                                   const OUString&               sFilter    );
 
 
    static void impl_removeTypeFilterFromDescriptor(utl::MediaDescriptor& rDescriptor);
 
 
    void impl_checkResultsAndAddBestFilter(utl::MediaDescriptor& rDescriptor,
                                           OUString&               sType      );
 
 
// uno interface
 
public:
 
 
    // XTypeDetection
 
    virtual OUString SAL_CALL queryTypeByURL(const OUString& sURL) override;
 
    virtual OUString SAL_CALL queryTypeByDescriptor(css::uno::Sequence< css::beans::PropertyValue >& lDescriptor,
                                                           sal_Bool                                         bAllowDeep ) override;
 
};
 
class TerminateDetection : public comphelper::WeakComponentImplHelper<css::frame::XTerminateListener>
{
private:
    TypeDetection* m_pTypeDetection;
 
public:
 
    using comphelper::WeakComponentImplHelperBase::disposing;
    virtual void SAL_CALL disposing(const css::lang::EventObject&) override
    {
    }
 
    // XTerminateListener
    virtual void SAL_CALL queryTermination(const css::lang::EventObject&) override
    {
        m_pTypeDetection->cancel();
    }
 
    virtual void SAL_CALL notifyTermination(const css::lang::EventObject&) override
    {
    }
 
    TerminateDetection(TypeDetection* pTypeDetection)
        : m_pTypeDetection(pTypeDetection)
    {
    }
};
 
}
 
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