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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 <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;
// constructor
OComponentAccess::OComponentAccess( const css::uno::Reference< XDesktop >& xOwner )
: m_xOwner ( xOwner )
{
// Safe impossible cases
SAL_WARN_IF( !impldbg_checkParameter_OComponentAccessCtor( xOwner ), "fwk", "OComponentAccess::OComponentAccess(): Invalid parameter detected!" );
}
// destructor
OComponentAccess::~OComponentAccess()
{
}
// XEnumerationAccess
css::uno::Reference< XEnumeration > SAL_CALL OComponentAccess::createEnumeration() throw( RuntimeException, std::exception )
{
SolarMutexGuard g;
// 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;
// Try to "lock" the desktop for access to task container.
css::uno::Reference< XInterface > xLock = m_xOwner.get();
if ( xLock.is() )
{
// 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!)
std::vector< css::uno::Reference< XComponent > > seqComponents;
impl_collectAllChildComponents( css::uno::Reference< XFramesSupplier >( xLock, UNO_QUERY ), seqComponents );
OComponentEnumeration* pEnumeration = new OComponentEnumeration( seqComponents );
xReturn.set( static_cast<OWeakObject*>(pEnumeration), UNO_QUERY );
}
// Return result of this operation.
return xReturn;
}
// XElementAccess
Type SAL_CALL OComponentAccess::getElementType() throw( RuntimeException, std::exception )
{
// Elements in list an enumeration are components!
// Return the uno-type of XComponent.
return cppu::UnoType<XComponent>::get();
}
// XElementAccess
sal_Bool SAL_CALL OComponentAccess::hasElements() throw( RuntimeException, std::exception )
{
SolarMutexGuard g;
// Set default return value, if method failed.
bool bReturn = false;
// Try to "lock" the desktop for access to task container.
css::uno::Reference< XFramesSupplier > xLock( m_xOwner.get(), UNO_QUERY );
if ( xLock.is() )
{
// Ask container of owner for existing elements.
bReturn = xLock->getFrames()->hasElements();
}
// Return result of this operation.
return bReturn;
}
void OComponentAccess::impl_collectAllChildComponents( const css::uno::Reference< XFramesSupplier >& xNode ,
std::vector< css::uno::Reference< XComponent > >& seqComponents )
{
// If valid node was given ...
if( xNode.is() )
{
// ... 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!).
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() )
{
seqComponents.push_back( xComponent );
}
}
}
// ... otherwise break a recursive path and go back at current stack!
}
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;
// Does no controller exists?
css::uno::Reference< XController > xController = xFrame->getController();
if ( !xController.is() )
{
// Controller not exist - use the VCL-component.
xComponent.set( xFrame->getComponentWindow(), UNO_QUERY );
}
else
{
// Does no model exists?
css::uno::Reference< XModel > xModel( xController->getModel(), UNO_QUERY );
if ( xModel.is() )
{
// Model exist - use the model as component.
xComponent.set( xModel, UNO_QUERY );
}
else
{
// Model not exist - use the controller as component.
xComponent.set( 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 author or add it himself !(?)
But ... look for right testing! See using of this methods!
-----------------------------------------------------------------------------------------------------------------*/
bool OComponentAccess::impldbg_checkParameter_OComponentAccessCtor( const css::uno::Reference< XDesktop >& xOwner )
{
return xOwner.is();
}
} // namespace framework
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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