/**************************************************************
 * 
 * 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_accessibility.hxx"
#include <accessibility/standard/vclxaccessiblemenubar.hxx>

#include <com/sun/star/accessibility/AccessibleRole.hpp>
#include <vcl/svapp.hxx>
#include <vcl/window.hxx>
#include <vcl/menu.hxx>


using namespace ::com::sun::star::accessibility;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star;
using namespace ::comphelper;


// -----------------------------------------------------------------------------
// class VCLXAccessibleMenuBar
// -----------------------------------------------------------------------------

VCLXAccessibleMenuBar::VCLXAccessibleMenuBar( Menu* pMenu )
	:OAccessibleMenuComponent( pMenu )
{
	if ( pMenu )
	{
		m_pWindow = pMenu->GetWindow();

		if ( m_pWindow )
			m_pWindow->AddEventListener( LINK( this, VCLXAccessibleMenuBar, WindowEventListener ) );
	}
}

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

VCLXAccessibleMenuBar::~VCLXAccessibleMenuBar()
{
	if ( m_pWindow )
		m_pWindow->RemoveEventListener( LINK( this, VCLXAccessibleMenuBar, WindowEventListener ) );
}

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

sal_Bool VCLXAccessibleMenuBar::IsFocused()
{
    sal_Bool bFocused = sal_False;

    if ( m_pWindow && m_pWindow->HasFocus() && !IsChildHighlighted() )
        bFocused = sal_True;

    return bFocused;
}

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

IMPL_LINK( VCLXAccessibleMenuBar, WindowEventListener, VclSimpleEvent*, pEvent )
{
	DBG_ASSERT( pEvent && pEvent->ISA( VclWindowEvent ), "VCLXAccessibleMenuBar::WindowEventListener: unknown window event!" );
	if ( pEvent && pEvent->ISA( VclWindowEvent ) )
	{
		DBG_ASSERT( ((VclWindowEvent*)pEvent)->GetWindow(), "VCLXAccessibleMenuBar::WindowEventListener: no window!" );
        if ( !((VclWindowEvent*)pEvent)->GetWindow()->IsAccessibilityEventsSuppressed() || ( pEvent->GetId() == VCLEVENT_OBJECT_DYING ) )
		{
		    ProcessWindowEvent( *(VclWindowEvent*)pEvent );
		}
	}
	return 0;
}

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

void VCLXAccessibleMenuBar::ProcessWindowEvent( const VclWindowEvent& rVclWindowEvent )
{
	switch ( rVclWindowEvent.GetId() )
	{
		case VCLEVENT_WINDOW_GETFOCUS:
		case VCLEVENT_WINDOW_LOSEFOCUS:
		{
			SetFocused( rVclWindowEvent.GetId() == VCLEVENT_WINDOW_GETFOCUS );
		}
		break;
		case VCLEVENT_OBJECT_DYING:
		{
			if ( m_pWindow )
			{
				m_pWindow->RemoveEventListener( LINK( this, VCLXAccessibleMenuBar, WindowEventListener ) );
				m_pWindow = NULL;
			}
		}
		break;
		default:
		{
		}
		break;
	}
}

// -----------------------------------------------------------------------------
// XComponent
// -----------------------------------------------------------------------------

void VCLXAccessibleMenuBar::disposing()
{
	OAccessibleMenuComponent::disposing();

	if ( m_pWindow )
	{
		m_pWindow->RemoveEventListener( LINK( this, VCLXAccessibleMenuBar, WindowEventListener ) );
		m_pWindow = NULL;
	}
}

// -----------------------------------------------------------------------------
// XServiceInfo
// -----------------------------------------------------------------------------

::rtl::OUString VCLXAccessibleMenuBar::getImplementationName() throw (RuntimeException)
{
	return ::rtl::OUString::createFromAscii( "com.sun.star.comp.toolkit.AccessibleMenuBar" );
}

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

Sequence< ::rtl::OUString > VCLXAccessibleMenuBar::getSupportedServiceNames() throw (RuntimeException)
{
	Sequence< ::rtl::OUString > aNames(1);
	aNames[0] = ::rtl::OUString::createFromAscii( "com.sun.star.awt.AccessibleMenuBar" );
	return aNames;
}

// -----------------------------------------------------------------------------
// XAccessibleContext
// -----------------------------------------------------------------------------

sal_Int32 VCLXAccessibleMenuBar::getAccessibleIndexInParent(  ) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	sal_Int32 nIndexInParent = -1;

	if ( m_pMenu )
	{
		Window* pWindow = m_pMenu->GetWindow();
		if ( pWindow )
		{
			Window* pParent = pWindow->GetAccessibleParentWindow();
			if ( pParent )
			{
				for ( sal_uInt16 n = pParent->GetAccessibleChildWindowCount(); n; )
				{
					Window* pChild = pParent->GetAccessibleChildWindow( --n );
					if ( pChild == pWindow )
					{
						nIndexInParent = n;
						break;
					}
				}
			}
		}
	}

	return nIndexInParent;
}

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

sal_Int16 VCLXAccessibleMenuBar::getAccessibleRole(  ) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	return AccessibleRole::MENU_BAR;
}

// -----------------------------------------------------------------------------
// XAccessibleExtendedComponent
// -----------------------------------------------------------------------------

sal_Int32 VCLXAccessibleMenuBar::getBackground(  ) throw (RuntimeException)
{
	OExternalLockGuard aGuard( this );

	return Application::GetSettings().GetStyleSettings().GetMenuBarColor().GetColor();
}

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