/**************************************************************
 * 
 * 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_basic.hxx"

#include <basic/vbahelper.hxx>

#include <map>
#include <vector>
#include <com/sun/star/container/XEnumeration.hpp>
#include <com/sun/star/frame/XDesktop.hpp>
#include <com/sun/star/frame/XModel2.hpp>
#include <com/sun/star/frame/XModuleManager.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <comphelper/processfactory.hxx>
#include <cppuhelper/implbase1.hxx>
#include <rtl/instance.hxx>

namespace basic {
namespace vba {

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

// ============================================================================

namespace {

/** Create an instance of a module manager.
 */
uno::Reference< frame::XModuleManager > lclCreateModuleManager()
{
    uno::Reference< frame::XModuleManager > xModuleManager;
    try
    {
        uno::Reference< lang::XMultiServiceFactory > xFactory( ::comphelper::getProcessServiceFactory(), uno::UNO_QUERY_THROW );
        xModuleManager.set( xFactory->createInstance( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.frame.ModuleManager" ) ) ), uno::UNO_QUERY );
    }
    catch( uno::Exception& )
    {
    }
    return xModuleManager;
}

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

/** Implementation of an enumeration of all open documents of the same type.
 */
class DocumentsEnumeration : public ::cppu::WeakImplHelper1< container::XEnumeration >
{
public:
    DocumentsEnumeration( const uno::Reference< frame::XModel >& rxModel );
    virtual sal_Bool SAL_CALL hasMoreElements() throw (uno::RuntimeException);
    virtual uno::Any SAL_CALL nextElement() throw (container::NoSuchElementException, lang::WrappedTargetException, uno::RuntimeException);
private:
    typedef ::std::vector< uno::Reference< frame::XModel > > ModelVector;
    ModelVector maModels;
    ModelVector::iterator maModelIt;
};

DocumentsEnumeration::DocumentsEnumeration( const uno::Reference< frame::XModel >& rxModel )
{
    try
    {
        uno::Reference< frame::XModuleManager > xModuleManager( lclCreateModuleManager(), uno::UNO_SET_THROW );
        ::rtl::OUString aIdentifier = xModuleManager->identify( rxModel );
        uno::Reference< lang::XMultiServiceFactory > xFactory( ::comphelper::getProcessServiceFactory(), uno::UNO_QUERY_THROW );
        uno::Reference< frame::XDesktop > xDesktop( xFactory->createInstance( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.frame.Desktop" ) ) ), uno::UNO_QUERY_THROW );
        uno::Reference< container::XEnumerationAccess > xComponentsEA( xDesktop->getComponents(), uno::UNO_SET_THROW );
        uno::Reference< container::XEnumeration > xEnumeration( xComponentsEA->createEnumeration(), uno::UNO_SET_THROW );
        while( xEnumeration->hasMoreElements() )
        {
            uno::Reference< frame::XModel > xCurrModel( xEnumeration->nextElement(), uno::UNO_QUERY_THROW );
            if( xModuleManager->identify( xCurrModel ) == aIdentifier )
                maModels.push_back( xCurrModel );
        }
    }
    catch( uno::Exception& )
    {
    }
    maModelIt = maModels.begin();
}

sal_Bool SAL_CALL DocumentsEnumeration::hasMoreElements() throw (uno::RuntimeException)
{
    return maModelIt != maModels.end();
}

uno::Any SAL_CALL DocumentsEnumeration::nextElement() throw (container::NoSuchElementException, lang::WrappedTargetException, uno::RuntimeException)
{
    if( maModelIt == maModels.end() )
        throw container::NoSuchElementException();
    return uno::Any( *maModelIt++ );
}

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

/** Locks or unlocks the controllers of the specified document model.
 */
void lclLockControllers( const uno::Reference< frame::XModel >& rxModel, sal_Bool bLockControllers )
{
    if( rxModel.is() ) try
    {
        if( bLockControllers )
            rxModel->lockControllers();
        else
            rxModel->unlockControllers();
    }
    catch( uno::Exception& )
    {
    }
}

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

/** Enables or disables the container windows of all controllers of the
    specified document model.
 */
void lclEnableContainerWindows( const uno::Reference< frame::XModel >& rxModel, sal_Bool bEnableWindows )
{
    try
    {
        uno::Reference< frame::XModel2 > xModel2( rxModel, uno::UNO_QUERY_THROW );
        uno::Reference< container::XEnumeration > xControllersEnum( xModel2->getControllers(), uno::UNO_SET_THROW );
        // iterate over all controllers
        while( xControllersEnum->hasMoreElements() )
        {
            try
            {
                uno::Reference< frame::XController > xController( xControllersEnum->nextElement(), uno::UNO_QUERY_THROW );
                uno::Reference< frame::XFrame > xFrame( xController->getFrame(), uno::UNO_SET_THROW );
                uno::Reference< awt::XWindow > xWindow( xFrame->getContainerWindow(), uno::UNO_SET_THROW );
                xWindow->setEnable( bEnableWindows );
            }
            catch( uno::Exception& )
            {
            }
        }
    }
    catch( uno::Exception& )
    {
    }
}

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

typedef void (*ModifyDocumentFunc)( const uno::Reference< frame::XModel >&, sal_Bool );

/** Implementation iterating over all documents that have the same type as the
    specified model, and calling the passed functor.
 */
void lclIterateDocuments( ModifyDocumentFunc pModifyDocumentFunc, const uno::Reference< frame::XModel >& rxModel, sal_Bool bModificator )
{
    uno::Reference< container::XEnumeration > xDocumentsEnum( new DocumentsEnumeration( rxModel ) );
    // iterate over all open documents
    while( xDocumentsEnum->hasMoreElements() ) try
    {
        uno::Reference< frame::XModel > xCurrModel( xDocumentsEnum->nextElement(), uno::UNO_QUERY_THROW );
        pModifyDocumentFunc( xCurrModel, bModificator );
    }
    catch( uno::Exception& )
    {
    }
}

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

struct CurrDirPool
{
    ::osl::Mutex maMutex;
    ::std::map< ::rtl::OUString, ::rtl::OUString > maCurrDirs;
};

struct StaticCurrDirPool : public ::rtl::Static< CurrDirPool, StaticCurrDirPool > {};

} // namespace

// ============================================================================

uno::Reference< container::XEnumeration > createDocumentsEnumeration( const uno::Reference< frame::XModel >& rxModel )
{
    return new DocumentsEnumeration( rxModel );
}

// ============================================================================

void lockControllersOfAllDocuments( const uno::Reference< frame::XModel >& rxModel, sal_Bool bLockControllers )
{
    lclIterateDocuments( &lclLockControllers, rxModel, bLockControllers );
}

// ============================================================================

void enableContainerWindowsOfAllDocuments( const uno::Reference< frame::XModel >& rxModel, sal_Bool bEnableWindows )
{
    lclIterateDocuments( &lclEnableContainerWindows, rxModel, bEnableWindows );
}

// ============================================================================

void registerCurrentDirectory( const uno::Reference< frame::XModel >& rxModel, const ::rtl::OUString& rPath )
{
    if( rPath.getLength() > 0 )
    {
        CurrDirPool& rPool = StaticCurrDirPool::get();
        ::osl::MutexGuard aGuard( rPool.maMutex );
        try
        {
            uno::Reference< frame::XModuleManager > xModuleManager( lclCreateModuleManager(), uno::UNO_SET_THROW );
            ::rtl::OUString aIdentifier = xModuleManager->identify( rxModel );
            if( aIdentifier.getLength() > 0 )
                rPool.maCurrDirs[ aIdentifier ] = rPath;
        }
        catch( uno::Exception& )
        {
        }
    }
}

// ============================================================================

::rtl::OUString getCurrentDirectory( const uno::Reference< frame::XModel >& rxModel )
{
    ::rtl::OUString aPath;
    CurrDirPool& rPool = StaticCurrDirPool::get();
    ::osl::MutexGuard aGuard( rPool.maMutex );
    try
    {
        uno::Reference< frame::XModuleManager > xModuleManager( lclCreateModuleManager(), uno::UNO_SET_THROW );
        ::rtl::OUString aIdentifier = xModuleManager->identify( rxModel );
        aPath = rPool.maCurrDirs[ aIdentifier ];
    }
    catch( uno::Exception& )
    {
    }
    return aPath;
}

// ============================================================================

} // namespace vba
} // namespace basic