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/* -*- 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 .
*/
#include <helper/ocomponentaccess.hxx>
#include <helper/ocomponentenumeration.hxx>
#include <threadhelp/resetableguard.hxx>
#include <com/sun/star/frame/FrameSearchFlag.hpp>
#include <vcl/svapp.hxx>
namespace framework{
using namespace ::com::sun::star::container ;
using namespace ::com::sun::star::frame ;
using namespace ::com::sun::star::lang ;
using namespace ::com::sun::star::uno ;
using namespace ::cppu ;
using namespace ::osl ;
using namespace ::rtl ;
//*****************************************************************************************************************
// constructor
//*****************************************************************************************************************
OComponentAccess::OComponentAccess( const css::uno::Reference< XDesktop >& xOwner )
// Init baseclasses first
: ThreadHelpBase ( &Application::GetSolarMutex() )
// Init member
, m_xOwner ( xOwner )
{
// Safe impossible cases
LOG_ASSERT( impldbg_checkParameter_OComponentAccessCtor( xOwner ), "OComponentAccess::OComponentAccess()\nInvalid parameter detected!\n" )
}
//*****************************************************************************************************************
// destructor
//*****************************************************************************************************************
OComponentAccess::~OComponentAccess()
{
}
//*****************************************************************************************************************
// XEnumerationAccess
//*****************************************************************************************************************
css::uno::Reference< XEnumeration > SAL_CALL OComponentAccess::createEnumeration() throw( RuntimeException )
{
// Ready for multithreading
ResetableGuard aGuard( m_aLock );
// Set default return value, if method failed.
// If no desktop exist and there is no task container - return an empty enumeration!
css::uno::Reference< XEnumeration > xReturn = css::uno::Reference< XEnumeration >();
// Try to "lock" the desktop for access to task container.
css::uno::Reference< XInterface > xLock = m_xOwner.get();
if ( xLock.is() == sal_True )
{
// Desktop exist => pointer to task container must be valid.
// Initialize a new enumeration ... if some tasks and his components exist!
// (OTasksEnumeration will make an assert, if we initialize the new instance without valid values!)
Sequence< css::uno::Reference< XComponent > > seqComponents;
impl_collectAllChildComponents( css::uno::Reference< XFramesSupplier >( xLock, UNO_QUERY ), seqComponents );
OComponentEnumeration* pEnumeration = new OComponentEnumeration( seqComponents );
xReturn = css::uno::Reference< XEnumeration >( (OWeakObject*)pEnumeration, UNO_QUERY );
}
// Return result of this operation.
return xReturn;
}
//*****************************************************************************************************************
// XElementAccess
//*****************************************************************************************************************
Type SAL_CALL OComponentAccess::getElementType() throw( RuntimeException )
{
// Elements in list an enumeration are components!
// Return the uno-type of XComponent.
return ::getCppuType((const css::uno::Reference< XComponent >*)NULL);
}
//*****************************************************************************************************************
// XElementAccess
//*****************************************************************************************************************
sal_Bool SAL_CALL OComponentAccess::hasElements() throw( RuntimeException )
{
// Ready for multithreading
ResetableGuard aGuard( m_aLock );
// Set default return value, if method failed.
sal_Bool bReturn = sal_False;
// Try to "lock" the desktop for access to task container.
css::uno::Reference< XFramesSupplier > xLock( m_xOwner.get(), UNO_QUERY );
if ( xLock.is() == sal_True )
{
// Ask container of owner for existing elements.
bReturn = xLock->getFrames()->hasElements();
}
// Return result of this operation.
return bReturn;
}
//*****************************************************************************************************************
// private method
//*****************************************************************************************************************
void OComponentAccess::impl_collectAllChildComponents( const css::uno::Reference< XFramesSupplier >& xNode ,
Sequence< css::uno::Reference< XComponent > >& seqComponents )
{
// If valid node was given ...
if( xNode.is() == sal_True )
{
// ... continue collection at these.
// Get the container of current node, collect the components of existing child frames
// and go down to next level in tree (recursive!).
sal_Int32 nComponentCount = seqComponents.getLength();
const css::uno::Reference< XFrames > xContainer = xNode->getFrames();
const Sequence< css::uno::Reference< XFrame > > seqFrames = xContainer->queryFrames( FrameSearchFlag::CHILDREN );
const sal_Int32 nFrameCount = seqFrames.getLength();
for( sal_Int32 nFrame=0; nFrame<nFrameCount; ++nFrame )
{
css::uno::Reference< XComponent > xComponent = impl_getFrameComponent( seqFrames[nFrame] );
if( xComponent.is() == sal_True )
{
nComponentCount++;
seqComponents.realloc( nComponentCount );
seqComponents[nComponentCount-1] = xComponent;
}
}
}
// ... otherwise break a recursive path and go back at current stack!
}
//*****************************************************************************************************************
// private method
//*****************************************************************************************************************
css::uno::Reference< XComponent > OComponentAccess::impl_getFrameComponent( const css::uno::Reference< XFrame >& xFrame ) const
{
// Set default return value, if method failed.
css::uno::Reference< XComponent > xComponent = css::uno::Reference< XComponent >();
// Does no controller exists?
css::uno::Reference< XController > xController = xFrame->getController();
if ( xController.is() == sal_False )
{
// Controller not exist - use the VCL-component.
xComponent = css::uno::Reference< XComponent >( xFrame->getComponentWindow(), UNO_QUERY );
}
else
{
// Does no model exists?
css::uno::Reference< XModel > xModel( xController->getModel(), UNO_QUERY );
if ( xModel.is() == sal_True )
{
// Model exist - use the model as component.
xComponent = css::uno::Reference< XComponent >( xModel, UNO_QUERY );
}
else
{
// Model not exist - use the controller as component.
xComponent = css::uno::Reference< XComponent >( xController, UNO_QUERY );
}
}
return xComponent;
}
//_________________________________________________________________________________________________________________
// debug methods
//_________________________________________________________________________________________________________________
/*-----------------------------------------------------------------------------------------------------------------
The follow methods checks the parameter for other functions. If a parameter or his value is non valid,
we return "sal_False". (else sal_True) This mechanism is used to throw an ASSERT!
ATTENTION
If you miss a test for one of this parameters, contact the autor or add it himself !(?)
But ... look for right testing! See using of this methods!
-----------------------------------------------------------------------------------------------------------------*/
#ifdef ENABLE_ASSERTIONS
//*****************************************************************************************************************
sal_Bool OComponentAccess::impldbg_checkParameter_OComponentAccessCtor( const css::uno::Reference< XDesktop >& xOwner )
{
// Set default return value.
sal_Bool bOK = sal_True;
// Check parameter.
if (
( &xOwner == NULL ) ||
( xOwner.is() == sal_False )
)
{
bOK = sal_False ;
}
// Return result of check.
return bOK ;
}
#endif // #ifdef ENABLE_ASSERTIONS
} // namespace framework
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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