libreoffice/xmlhelp/source/cxxhelp/provider/urlparameter.hxx

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * 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/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#ifndef _URLPARAMETER_HXX_
#define _URLPARAMETER_HXX_

#include <rtl/ustring.hxx>
#include <rtl/string.hxx>
#include <com/sun/star/ucb/IllegalIdentifierException.hpp>
#include <com/sun/star/ucb/XCommandEnvironment.hpp>
#include <com/sun/star/io/XActiveDataSink.hpp>
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/ucb/Command.hpp>

namespace chelp {


    class Databases;


    class DbtToStringConverter
    {
    public:

        DbtToStringConverter( const sal_Char* ptr )
            : m_ptr( ptr )
        {
        }


        OUString getHash()
        {
            if( m_ptr )
            {
                sal_Int32 sizeOfFile = ( sal_Int32 ) m_ptr[0];
                OUString Hash( m_ptr+1,sizeOfFile,RTL_TEXTENCODING_UTF8 );
                sal_Int32 idx;
                if( ( idx = Hash.indexOf( sal_Unicode( '#' ) ) ) != -1 )
                    return Hash.copy( 1+idx );
            }
            return OUString();
        }


        OUString getFile()
        {
            if( ! m_ptr )
                return OUString();

            sal_Int32 sizeOfFile = ( sal_Int32 ) m_ptr[0];
            OUString File( m_ptr+1,sizeOfFile,RTL_TEXTENCODING_UTF8 );
            sal_Int32 idx;
            if( ( idx = File.indexOf( sal_Unicode( '#' ) ) ) != -1 )
                return File.copy( 0,idx );
            else
                return File;
        }


        OUString getDatabase()
        {
            if( ! m_ptr )
                return OUString();

            sal_Int32 sizeOfDatabase = ( int ) m_ptr[ 1+ ( sal_Int32 ) m_ptr[0] ];
            return OUString( m_ptr + 2 + ( sal_Int32 ) m_ptr[0],sizeOfDatabase,RTL_TEXTENCODING_UTF8 );
        }


        OUString getTitle()
        {
            if( ! m_ptr )
                return OUString();

            sal_Int32 sizeOfTitle =
                ( sal_Int32 ) m_ptr[  2 + m_ptr[0] +  ( sal_Int32 ) m_ptr[ 1+ ( sal_Int32 ) m_ptr[0] ] ];
            return OUString( m_ptr + 3 + m_ptr[0] +  ( sal_Int32 ) m_ptr[ 1+ ( sal_Int32 ) m_ptr[0] ],
                                  sizeOfTitle,
                                  RTL_TEXTENCODING_UTF8 );
        }


    private:

        const sal_Char* m_ptr;

    };




    class URLParameter
    {
    public:

        URLParameter( const OUString& aURL,
                      Databases* pDatabases )
            throw( com::sun::star::ucb::IllegalIdentifierException );

        bool isPicture() const { return m_aModule == "picture"; }
        bool isActive() const { return !m_aActive.isEmpty() && m_aActive == "true"; }
        bool isQuery() const { return m_aId.isEmpty() && !m_aQuery.isEmpty(); }
        bool isEntryForModule() const { return m_aId == "start" || m_bStart; }
        bool isFile() const { return !m_aId.isEmpty(); }
        bool isModule() const { return m_aId.isEmpty() && !m_aModule.isEmpty(); }
        bool isRoot() const { return m_aModule.isEmpty(); }
        bool isErrorDocument();

        OUString get_url() const { return m_aURL; }

        OUString get_id();

        OUString get_tag();

        //  Not called for an directory

        OUString get_path()   { return get_the_path(); }

        OUString get_eid() const   { return m_aEid; }

        OUString get_title();

        OUString get_jar()      { return get_the_jar(); }

        OUString get_ExtensionRegistryPath() const { return m_aExtensionRegistryPath; }

        OUString get_module() const { return m_aModule; }

        OUString get_dbpar() const
        {
            if( !m_aDbPar.isEmpty() )
                return m_aDbPar;
            else
                return m_aModule;
        }

        OUString get_prefix() const { return m_aPrefix; }

        OUString get_language();

        OUString get_device() const { return m_aDevice; }

        OUString get_program();

        OUString get_query() const { return m_aQuery; }

        OUString get_scope() const { return m_aScope; }

        OUString get_system() const { return m_aSystem; }

        sal_Int32     get_hitCount() const { return m_nHitCount; }

        OString getByName( const char* par );

        void open( const com::sun::star::ucb::Command& aCommand,
                   sal_Int32 CommandId,
                   const com::sun::star::uno::Reference< com::sun::star::ucb::XCommandEnvironment >& Environment,
                   const com::sun::star::uno::Reference< com::sun::star::io::XActiveDataSink >& xDataSink );

        void open( const com::sun::star::ucb::Command& aCommand,
                   sal_Int32 CommandId,
                   const com::sun::star::uno::Reference< com::sun::star::ucb::XCommandEnvironment >& Environment,
                   const com::sun::star::uno::Reference< com::sun::star::io::XOutputStream >& xDataSink );

    private:

        Databases* m_pDatabases;

        bool m_bHelpDataFileRead;
        bool m_bStart;
        bool m_bUseDB;

        OUString  m_aURL;

        OUString  m_aTag;
        OUString  m_aId;
        OUString  m_aPath;
        OUString  m_aModule;
        OUString  m_aTitle;
        OUString  m_aJar;
        OUString  m_aExtensionRegistryPath;
        OUString  m_aEid;
        OUString  m_aDbPar;

        OUString  m_aDefaultLanguage;
        OUString  m_aLanguage;

        OUString  m_aPrefix;
        OUString  m_aDevice;
        OUString  m_aProgram;
        OUString  m_aSystem;
        OUString  m_aActive;

        OUString  m_aQuery;
        OUString  m_aScope;

        OUString m_aExpr;

        sal_Int32      m_nHitCount;                // The default maximum hitcount


        // private methods

        void init( bool bDefaultLanguageIsInitialized );

        OUString get_the_tag();

        OUString get_the_path();

        OUString get_the_title();

        OUString get_the_jar();

        void readHelpDataFile();

        void parse() throw( com::sun::star::ucb::IllegalIdentifierException );

        bool scheme();

        bool module();

        bool name( bool modulePresent );

        bool query();

    };   // end class URLParameter


}  // end namespace chelp

#endif

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