/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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 *************************************************************/


#ifndef CHART2_FEATURECOMMANDDISPATCHBASE_HXX
#define CHART2_FEATURECOMMANDDISPATCHBASE_HXX

#include "CommandDispatch.hxx"

#include <com/sun/star/frame/CommandGroup.hpp>
#include <com/sun/star/frame/DispatchInformation.hpp>
#include <com/sun/star/util/URL.hpp>

namespace chart
{

struct ControllerFeature: public ::com::sun::star::frame::DispatchInformation
{
    sal_uInt16 nFeatureId;
};

typedef ::std::map< ::rtl::OUString,
                    ControllerFeature,
                    ::std::less< ::rtl::OUString > > SupportedFeatures;

struct FeatureState
{
    bool bEnabled;
    ::com::sun::star::uno::Any aState;

    FeatureState() : bEnabled( false ) { }
};

/** This is a base class for CommandDispatch implementations with feature support.
 */
class FeatureCommandDispatchBase: public CommandDispatch
{
public:
    FeatureCommandDispatchBase( const ::com::sun::star::uno::Reference<
        ::com::sun::star::uno::XComponentContext >& rxContext );
	virtual ~FeatureCommandDispatchBase();

    // late initialisation, especially for adding as listener
    virtual void initialize();

    virtual bool isFeatureSupported( const ::rtl::OUString& rCommandURL );

protected:
    // XDispatch
    virtual void SAL_CALL dispatch( const ::com::sun::star::util::URL& URL,
        const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& Arguments )
        throw (::com::sun::star::uno::RuntimeException);

    virtual void fireStatusEvent( const ::rtl::OUString& rURL,
        const ::com::sun::star::uno::Reference< ::com::sun::star::frame::XStatusListener >& xSingleListener );

	// state of a feature
    virtual FeatureState getState( const ::rtl::OUString& rCommand ) = 0;

    // execute a feature
    virtual void execute( const ::rtl::OUString& rCommand, const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue>& rArgs ) = 0;

    // all the features which should be handled by this class
    virtual void describeSupportedFeatures() = 0;

    /** describes a feature supported by the controller

        Must not be called outside <member>describeSupportedFeatures</member>.

        @param pAsciiCommandURL
            the URL of the feature command
        @param nId
            the id of the feature. Later references to this feature usually happen by id, not by
            URL.
        @param nGroup
            the command group of the feature. This is important for configuring the controller UI
            by the user, see also <type scope="com::sun::star::frame">CommandGroup</type>.
    */
    void implDescribeSupportedFeature( const sal_Char* pAsciiCommandURL, sal_uInt16 nId, 
        sal_Int16 nGroup = ::com::sun::star::frame::CommandGroup::INTERNAL );

    mutable SupportedFeatures m_aSupportedFeatures;

    sal_uInt16 m_nFeatureId;

private:
    void fillSupportedFeatures();
};

} //  namespace chart

// CHART2_FEATURECOMMANDDISPATCHBASE_HXX
#endif