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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>
+#include <sal/log.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( !xOwner.is(), "fwk", "OComponentAccess::OComponentAccess(): Invalid parameter detected!" );
+}
+
+// destructor
+
+OComponentAccess::~OComponentAccess()
+{
+}
+
+// XEnumerationAccess
+css::uno::Reference< XEnumeration > SAL_CALL OComponentAccess::createEnumeration()
+{
+ 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 );
+ xReturn = new OComponentEnumeration( std::move(seqComponents) );
+ }
+
+ // Return result of this operation.
+ return xReturn;
+}
+
+// XElementAccess
+Type SAL_CALL OComponentAccess::getElementType()
+{
+ // 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()
+{
+ 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() )
+ return;
+
+ // ... 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 = xFrame->getComponentWindow();
+ }
+ else
+ {
+ // Does no model exists?
+ css::uno::Reference< XModel > xModel = xController->getModel();
+ if ( xModel.is() )
+ {
+ // Model exist - use the model as component.
+ xComponent = xModel;
+ }
+ else
+ {
+ // Model not exist - use the controller as component.
+ xComponent = xController;
+ }
+ }
+
+ return xComponent;
+}
+
+
+} // namespace framework
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */