/**************************************************************
 * 
 * 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
 * under the License.
 * 
 *************************************************************/


// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_slideshow.hxx"

#include <canvas/debug.hxx>
#include <unoviewcontainer.hxx>

#include <boost/bind.hpp>

#include <algorithm>


using namespace ::com::sun::star;

// -----------------------------------------------------------------------------

namespace slideshow
{
    namespace internal
    {
        UnoViewContainer::UnoViewContainer() :
            maViews()
        {
        }

        bool UnoViewContainer::addView( const UnoViewSharedPtr& rView )
        {
            // check whether same view is already added
            const UnoViewVector::iterator aEnd( maViews.end() );

            // already added?
            if( ::std::find_if( maViews.begin(), 
                                aEnd, 
                                ::boost::bind(
                                    ::std::equal_to< uno::Reference< presentation::XSlideShowView > >(),
                                    ::boost::cref( rView->getUnoView() ),
                                    ::boost::bind(
                                        &UnoView::getUnoView,
                                        _1 ) ) ) != aEnd )
            {
                // yes, nothing to do
                return false;
            }

            // add locally
            maViews.push_back( rView );

            return true;
        }

        UnoViewSharedPtr UnoViewContainer::removeView( const uno::Reference< presentation::XSlideShowView >& xView )        
        {
            // check whether same view is already added
            const UnoViewVector::iterator aEnd( maViews.end() );
            UnoViewVector::iterator aIter;

            // added in the first place?
            if( (aIter=::std::find_if( maViews.begin(), 
                                       aEnd, 
                                       ::boost::bind(
                                           ::std::equal_to< uno::Reference< presentation::XSlideShowView > >(),
                                           ::boost::cref( xView ),
                                           ::boost::bind(
                                               &UnoView::getUnoView,
                                               _1 ) ) ) ) == aEnd )
            {
                // nope, nothing to do
                return UnoViewSharedPtr();
            }

            OSL_ENSURE( 
                ::std::count_if( 
                    maViews.begin(), 
                    aEnd, 
                    ::boost::bind(
                        ::std::equal_to< uno::Reference< presentation::XSlideShowView > >(),
                        ::boost::cref( xView ),
                        ::boost::bind(
                            &UnoView::getUnoView,
                            _1 ))) == 1,
                "UnoViewContainer::removeView(): View was added multiple times" );

            UnoViewSharedPtr pView( *aIter );

            // actually erase from container
            maViews.erase( aIter );

            return pView;
        }

        bool UnoViewContainer::removeView( const UnoViewSharedPtr& rView )
        {
            // remove locally
            const UnoViewVector::iterator aEnd( maViews.end() );
            UnoViewVector::iterator aIter;
            if( (aIter=::std::find( maViews.begin(), 
                                    aEnd, 
                                    rView )) == aEnd )
            {
                // view seemingly was not added, failed
                return false;
            }

            OSL_ENSURE( ::std::count( maViews.begin(), 
                                      aEnd, 
                                      rView ) == 1,
                        "UnoViewContainer::removeView(): View was added multiple times" );

            // actually erase from container
            maViews.erase( aIter );

            return true;
        }

        void UnoViewContainer::dispose()
        {
            ::std::for_each( maViews.begin(),
                             maViews.end(),
                             ::boost::mem_fn(&UnoView::_dispose) );
            maViews.clear();            
        }
    }
}