/**************************************************************
 * 
 * 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_svx.hxx"

#include "fmhelp.hrc"
#include "fmprop.hrc"
#include "fmPropBrw.hxx"
#include "svx/fmresids.hrc"
#include "fmservs.hxx"
#include "fmshimp.hxx"
#include "fmpgeimp.hxx"

#include "svx/dialmgr.hxx"
#include "svx/fmpage.hxx"
#include "svx/fmshell.hxx"
#include "svx/sdrpagewindow.hxx"
#include "svx/svdpagv.hxx"
#include "svx/svxids.hrc"

/** === begin UNO includes === **/
#include <com/sun/star/beans/PropertyValue.hpp>
#include <com/sun/star/awt/PosSize.hpp>
#include <com/sun/star/form/XForm.hpp>
#include <com/sun/star/form/FormComponentType.hpp>
#include <com/sun/star/awt/XLayoutConstrains.hpp>
#include <com/sun/star/awt/XControlContainer.hpp>
#include <com/sun/star/container/XChild.hpp>
#include <com/sun/star/awt/PosSize.hpp>
#include <com/sun/star/inspection/ObjectInspector.hpp>
#include <com/sun/star/inspection/ObjectInspectorModel.hpp>
#include <com/sun/star/form/inspection/DefaultFormComponentInspectorModel.hpp>
#include <com/sun/star/inspection/XObjectInspectorUI.hpp>
#include <com/sun/star/inspection/DefaultHelpProvider.hpp>
/** === end UNO includes === **/

#include <comphelper/processfactory.hxx>
#include <comphelper/property.hxx>
#include <cppuhelper/component_context.hxx>
#include <sfx2/bindings.hxx>
#include <sfx2/childwin.hxx>
#include <sfx2/dispatch.hxx>
#include <sfx2/objitem.hxx>
#include <sfx2/objsh.hxx>
#include <sfx2/viewfrm.hxx>
#include <toolkit/unohlp.hxx>
#include <tools/debug.hxx>
#include <tools/diagnose_ex.h>
#include <tools/shl.hxx>
#include <unotools/confignode.hxx>
#include <vcl/stdtext.hxx>

#include <algorithm>

using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::util;
using namespace ::com::sun::star::inspection;
using namespace ::com::sun::star::form::inspection;
using ::com::sun::star::awt::XWindow;

/*************************************************************************/
//========================================================================
//= FmPropBrwMgr
//========================================================================
//-----------------------------------------------------------------------
SFX_IMPL_FLOATINGWINDOW(FmPropBrwMgr, SID_FM_SHOW_PROPERTIES)

//-----------------------------------------------------------------------
FmPropBrwMgr::FmPropBrwMgr(	Window* _pParent, sal_uInt16 _nId,
							SfxBindings* _pBindings, SfxChildWinInfo* _pInfo)
			  :SfxChildWindow(_pParent, _nId)
{
	pWindow = new FmPropBrw( ::comphelper::getProcessServiceFactory(), _pBindings, this, _pParent, _pInfo );
	eChildAlignment = SFX_ALIGN_NOALIGNMENT;
	((SfxFloatingWindow*)pWindow)->Initialize( _pInfo );
}

//========================================================================
//========================================================================
const long STD_WIN_SIZE_X = 300;
const long STD_WIN_SIZE_Y = 350;

const long STD_MIN_SIZE_X = 250;
const long STD_MIN_SIZE_Y = 250;

const long STD_WIN_POS_X = 50;
const long STD_WIN_POS_Y = 50;
const long WIN_BORDER = 2;
const long MIN_WIN_SIZE_X = 50;
const long MIN_WIN_SIZE_Y = 50;

using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::form;
using namespace ::com::sun::star::frame;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::container;
using namespace ::svxform;

::rtl::OUString GetUIHeadlineName(sal_Int16 nClassId, const Any& aUnoObj)
{
    sal_uInt16 nClassNameResourceId = 0;

    switch ( nClassId )
	{
		case FormComponentType::TEXTFIELD:
		{
			Reference< XInterface >  xIFace;
			aUnoObj >>= xIFace;
			nClassNameResourceId = RID_STR_PROPTITLE_EDIT;
			if (xIFace.is())
			{	// we have a chance to check if it's a formatted field model
				Reference< XServiceInfo >  xInfo(xIFace, UNO_QUERY);
				if (xInfo.is() && (xInfo->supportsService(FM_SUN_COMPONENT_FORMATTEDFIELD)))
                    nClassNameResourceId = RID_STR_PROPTITLE_FORMATTED;
				else if (!xInfo.is())
				{
					// couldn't distinguish between formatted and edit with the service name, so try with the properties
					Reference< XPropertySet >  xProps(xIFace, UNO_QUERY);
					if (xProps.is())
					{
						Reference< XPropertySetInfo >  xPropsInfo = xProps->getPropertySetInfo();
						if (xPropsInfo.is() && xPropsInfo->hasPropertyByName(FM_PROP_FORMATSSUPPLIER))
							nClassNameResourceId = RID_STR_PROPTITLE_FORMATTED;
					}
				}
			}
		}
		break;

		case FormComponentType::COMMANDBUTTON:
			nClassNameResourceId = RID_STR_PROPTITLE_PUSHBUTTON; break;
		case FormComponentType::RADIOBUTTON:
			nClassNameResourceId = RID_STR_PROPTITLE_RADIOBUTTON; break;
		case FormComponentType::CHECKBOX:
			nClassNameResourceId = RID_STR_PROPTITLE_CHECKBOX; break;
		case FormComponentType::LISTBOX:
			nClassNameResourceId = RID_STR_PROPTITLE_LISTBOX; break;
		case FormComponentType::COMBOBOX:
			nClassNameResourceId = RID_STR_PROPTITLE_COMBOBOX; break;
		case FormComponentType::GROUPBOX:
			nClassNameResourceId = RID_STR_PROPTITLE_GROUPBOX; break;
		case FormComponentType::IMAGEBUTTON:
			nClassNameResourceId = RID_STR_PROPTITLE_IMAGEBUTTON; break;
		case FormComponentType::FIXEDTEXT:
			nClassNameResourceId = RID_STR_PROPTITLE_FIXEDTEXT; break;
		case FormComponentType::GRIDCONTROL:
			nClassNameResourceId = RID_STR_PROPTITLE_DBGRID; break;
		case FormComponentType::FILECONTROL:
			nClassNameResourceId = RID_STR_PROPTITLE_FILECONTROL; break;
		case FormComponentType::DATEFIELD:
			nClassNameResourceId = RID_STR_PROPTITLE_DATEFIELD; break;
		case FormComponentType::TIMEFIELD:
			nClassNameResourceId = RID_STR_PROPTITLE_TIMEFIELD; break;
		case FormComponentType::NUMERICFIELD:
			nClassNameResourceId = RID_STR_PROPTITLE_NUMERICFIELD; break;
		case FormComponentType::CURRENCYFIELD:
			nClassNameResourceId = RID_STR_PROPTITLE_CURRENCYFIELD; break;
		case FormComponentType::PATTERNFIELD:
			nClassNameResourceId = RID_STR_PROPTITLE_PATTERNFIELD; break;
		case FormComponentType::IMAGECONTROL:
			nClassNameResourceId = RID_STR_PROPTITLE_IMAGECONTROL; break;
		case FormComponentType::HIDDENCONTROL:
			nClassNameResourceId = RID_STR_PROPTITLE_HIDDEN; break;
		case FormComponentType::SCROLLBAR:
			nClassNameResourceId = RID_STR_PROPTITLE_SCROLLBAR; break;
		case FormComponentType::SPINBUTTON:
			nClassNameResourceId = RID_STR_PROPTITLE_SPINBUTTON; break;
		case FormComponentType::NAVIGATIONBAR:
			nClassNameResourceId = RID_STR_PROPTITLE_NAVBAR; break;
		case FormComponentType::CONTROL:
		default:
			nClassNameResourceId = RID_STR_CONTROL; break;
	}

    if ( !nClassNameResourceId )
        return ::rtl::OUString();

    return ::rtl::OUString( String( SVX_RES( nClassNameResourceId ) ) );
}

//========================================================================
// class FmPropBrw
//========================================================================
DBG_NAME(FmPropBrw);
//------------------------------------------------------------------------
FmPropBrw::FmPropBrw( const Reference< XMultiServiceFactory >& _xORB, SfxBindings* _pBindings,
            SfxChildWindow* _pMgr, Window* _pParent, const SfxChildWinInfo* _pInfo )
    :SfxFloatingWindow(_pBindings, _pMgr, _pParent, WinBits(WB_STDMODELESS|WB_SIZEABLE|WB_3DLOOK|WB_ROLLABLE) )
    ,SfxControllerItem(SID_FM_PROPERTY_CONTROL, *_pBindings)
    ,m_bInitialStateChange(sal_True)
    ,m_bInStateChange( false )
    ,m_xORB(_xORB)
{
	DBG_CTOR(FmPropBrw,NULL);

    ::Size aPropWinSize(STD_WIN_SIZE_X,STD_WIN_SIZE_Y);
    SetMinOutputSizePixel(::Size(STD_MIN_SIZE_X,STD_MIN_SIZE_Y));
	SetOutputSizePixel(aPropWinSize);
	SetUniqueId(UID_FORMPROPBROWSER_FRAME);

	try
	{
		// create a frame wrapper for myself
		m_xMeAsFrame = Reference< XFrame >(m_xORB->createInstance(::rtl::OUString::createFromAscii("com.sun.star.frame.Frame")), UNO_QUERY);
		if (m_xMeAsFrame.is())
		{
            // create an intermediate window, which is to be the container window of the frame
            // Do *not* use |this| as container window for the frame, this would result in undefined
            // responsiblity for this window (as soon as we initialize a frame with a window, the frame
            // is responsible for it's life time, but |this| is controlled by the belonging SfxChildWindow)
            // #i34249# - 2004-09-27 - fs@openoffice.org
            Window* pContainerWindow = new Window( this );
            pContainerWindow->Show();
            m_xFrameContainerWindow = VCLUnoHelper::GetInterface ( pContainerWindow );

			m_xMeAsFrame->initialize( m_xFrameContainerWindow );
			m_xMeAsFrame->setName(::rtl::OUString::createFromAscii("form property browser"));
            if ( _pBindings->GetDispatcher() )
            {
                ::com::sun::star::uno::Reference < ::com::sun::star::frame::XFramesSupplier >
                        xSupp ( _pBindings->GetDispatcher()->GetFrame()->GetFrame().GetFrameInterface(), ::com::sun::star::uno::UNO_QUERY );
//                if ( xSupp.is() )
//                    xSupp->getFrames()->append( m_xMeAsFrame );
                // Don't append frame to frame hierachy to prevent UI_DEACTIVATE messages
                // #i31834# - 2004-07-27 - cd@openoffice.org
            }
		}
	}
	catch (Exception&)
	{
		DBG_ERROR("FmPropBrw::FmPropBrw: could not create/initialize my frame!");
		m_xMeAsFrame.clear();
	}

	if (m_xMeAsFrame.is())
		_pMgr->SetFrame( m_xMeAsFrame );


	if ( m_xBrowserComponentWindow.is() )
		m_xBrowserComponentWindow->setVisible( sal_True );

    if ( _pInfo )
        m_sLastActivePage = _pInfo->aExtraString;
}

//------------------------------------------------------------------------
void FmPropBrw::Resize()
{
    SfxFloatingWindow::Resize();

    if ( m_xFrameContainerWindow.is() )
    {
        try
        {
			::Size aOutputSize( GetOutputSizePixel() );
            m_xFrameContainerWindow->setPosSize( 0, 0, aOutputSize.Width(), aOutputSize.Height(), awt::PosSize::POSSIZE );
        }
        catch( const Exception& )
        {
        	OSL_ENSURE( sal_False, "FmPropBrw::Resize: caught an exception!" );
        }
    }
}

//------------------------------------------------------------------------
FmPropBrw::~FmPropBrw()
{
	if (m_xBrowserController.is())
		implDetachController();
    try
    {
        // remove our own properties from the component context. We cannot ensure that the component context
        // is freed (there might be refcount problems :-\), so at least ensure the context itself
        // does hold the objects anymore
        Reference<XNameContainer> xName(m_xInspectorContext,uno::UNO_QUERY);
        if ( xName.is() )
        {
            const ::rtl::OUString pProps[] = { ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "ContextDocument" ) )
                                             , ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "DialogParentWindow" ) )
                                             , ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "ControlContext" ) )
                                             , ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "ControlShapeAccess" ) ) };
            for ( size_t i = 0; i < sizeof(pProps)/sizeof(pProps[0]); ++i )
                xName->removeByName( pProps[i] );
        }
    }
    catch (const Exception& )
    {
        DBG_UNHANDLED_EXCEPTION();
    }
	DBG_DTOR(FmPropBrw,NULL);
}

//-----------------------------------------------------------------------
::rtl::OUString FmPropBrw::getCurrentPage() const
{
    ::rtl::OUString sCurrentPage;
    try
    {
        if ( m_xBrowserController.is() )
        {
            OSL_VERIFY( m_xBrowserController->getViewData() >>= sCurrentPage );
        }

        if ( !sCurrentPage.getLength() )
            sCurrentPage = m_sLastActivePage;
    }
    catch( const Exception& )
    {
    	OSL_ENSURE( sal_False, "FmPropBrw::getCurrentPage: caught an exception while retrieving the current page!" );
    }
    return sCurrentPage;
}

//-----------------------------------------------------------------------
void FmPropBrw::implDetachController()
{
    m_sLastActivePage = getCurrentPage();

	implSetNewSelection( InterfaceBag() );

    if ( m_xMeAsFrame.is() )
    {
        try
        {
		    m_xMeAsFrame->setComponent(NULL, NULL);
        }
        catch( const Exception& )
        {
        	OSL_ENSURE( sal_False, "FmPropBrw::implDetachController: caught an exception while resetting the component!" );
        }
    }

	// we attached a frame to the controller manually, so we need to manually tell it that it's detached, too
	// 96068 - 09.01.2002 - fs@openoffice.org
	if ( m_xBrowserController.is() )
		m_xBrowserController->attachFrame( NULL );

	m_xBrowserController.clear();
    m_xInspectorModel.clear();
	m_xMeAsFrame.clear();
}

//-----------------------------------------------------------------------
sal_Bool FmPropBrw::Close()
{
    // suspend the controller (it is allowed to veto)
    if ( m_xMeAsFrame.is() )
    {
        try
        {
            Reference< XController > xController( m_xMeAsFrame->getController() );
            if ( xController.is() && !xController->suspend( sal_True ) )
                return sal_False;
        }
        catch( const Exception& )
        {
        	OSL_ENSURE( sal_False, "FmPropBrw::Close: caught an exception while asking the controller!" );
        }
    }

	implDetachController();

	if( IsRollUp() )
		RollDown();

	// remember our bindings: while we're closed, we're deleted, too, so accessing the bindings after this
	// would be deadly
	// 10/19/00 - 79321 - FS
	SfxBindings& rBindings = SfxControllerItem::GetBindings();

	sal_Bool bClose = SfxFloatingWindow::Close();

	if (bClose)
	{
		rBindings.Invalidate(SID_FM_CTL_PROPERTIES);
		rBindings.Invalidate(SID_FM_PROPERTIES);
	}

	return bClose;
}

//-----------------------------------------------------------------------
bool FmPropBrw::implIsReadOnlyModel() const
{
    try
    {
        if ( m_xInspectorModel.is() )
            return m_xInspectorModel->getIsReadOnly();
        return false;
    }
    catch( const Exception& )
    {
    	DBG_UNHANDLED_EXCEPTION();
    }
    return true;
}

//-----------------------------------------------------------------------
void FmPropBrw::implSetNewSelection( const InterfaceBag& _rSelection )
{
	if ( m_xBrowserController.is() )
	{
        try
        {
            Reference< XObjectInspector > xInspector( m_xBrowserController, UNO_QUERY_THROW );

            // tell it the objects to inspect
            Sequence< Reference< XInterface > > aSelection( _rSelection.size() );
            ::std::copy( _rSelection.begin(), _rSelection.end(), aSelection.getArray() );

            xInspector->inspect( aSelection );
        }
        catch( const VetoException& )
        {
            return;
        }
        catch( const Exception& )
        {
        	OSL_ENSURE( sal_False, "FmPropBrw::implSetNewSelection: caught an unexpected exception!" );
            return;
        }

		// set the new title according to the selected object
		String sTitle;

        if ( _rSelection.empty() )
        {
			sTitle = String( SVX_RES( RID_STR_NO_PROPERTIES ) );
        }
        else if ( _rSelection.size() > 1 )
		{
			// no form component and (no form or no name) -> Multiselection
			sTitle = String( SVX_RES( RID_STR_PROPERTIES_CONTROL ) );
			sTitle += String( SVX_RES( RID_STR_PROPTITLE_MULTISELECT ) );
		}
        else
        {
            Reference< XPropertySet > xSingleSelection( *_rSelection.begin(), UNO_QUERY);
            if  ( ::comphelper::hasProperty( FM_PROP_CLASSID, xSingleSelection ) )
		    {
                sal_Int16 nClassID = FormComponentType::CONTROL;
			    xSingleSelection->getPropertyValue( FM_PROP_CLASSID ) >>= nClassID;

                sTitle = String( SVX_RES( RID_STR_PROPERTIES_CONTROL ) );
				sTitle += String( GetUIHeadlineName( nClassID, makeAny( xSingleSelection ) ) );
		    }
		    else if ( Reference< XForm >( xSingleSelection, UNO_QUERY ).is() )
			    sTitle = String( SVX_RES( RID_STR_PROPERTIES_FORM ) );
        }

        if ( implIsReadOnlyModel() )
            sTitle += String( SVX_RES( RID_STR_READONLY_VIEW ) );

		SetText( sTitle );

		// #95343# ---------------------------------
		Reference< ::com::sun::star::awt::XLayoutConstrains > xLayoutConstrains( m_xBrowserController, UNO_QUERY );
		if( xLayoutConstrains.is() )
		{
			::Size aConstrainedSize;
			::com::sun::star::awt::Size aMinSize = xLayoutConstrains->getMinimumSize();

            sal_Int32 nLeft(0), nTop(0), nRight(0), nBottom(0);
            GetBorder( nLeft, nTop, nRight, nBottom );
			aMinSize.Width += nLeft + nRight + 8;
			aMinSize.Height += nTop + nBottom + 8;

            aConstrainedSize.setHeight( aMinSize.Height );
			aConstrainedSize.setWidth( aMinSize.Width );
			SetMinOutputSizePixel( aConstrainedSize );
			aConstrainedSize = GetOutputSizePixel(); 
			sal_Bool bResize = sal_False;
			if( aConstrainedSize.Width() < aMinSize.Width )
			{
				aConstrainedSize.setWidth( aMinSize.Width );
				bResize = sal_True;
			}
			if( aConstrainedSize.Height() < aMinSize.Height )
			{
				aConstrainedSize.setHeight( aMinSize.Height );
				bResize = sal_True;
			}
			if( bResize )
				SetOutputSizePixel( aConstrainedSize );
		}
	}
}

//-----------------------------------------------------------------------
void FmPropBrw::FillInfo( SfxChildWinInfo& rInfo ) const
{
	rInfo.bVisible = sal_False;
    rInfo.aExtraString = getCurrentPage();
}

//-----------------------------------------------------------------------
IMPL_LINK( FmPropBrw, OnAsyncGetFocus, void*, /*NOTINTERESTEDIN*/ )
{
	if (m_xBrowserComponentWindow.is())
		m_xBrowserComponentWindow->setFocus();
	return 0L;
}

//-----------------------------------------------------------------------
namespace
{
    static bool lcl_shouldEnableHelpSection( const Reference< XMultiServiceFactory >& _rxFactory )
    {
        const ::rtl::OUString sConfigName( RTL_CONSTASCII_USTRINGPARAM( "/org.openoffice.Office.Common/Forms/PropertyBrowser/" ) );
        const ::rtl::OUString sPropertyName( RTL_CONSTASCII_USTRINGPARAM( "DirectHelp" ) );

        ::utl::OConfigurationTreeRoot aConfiguration(
            ::utl::OConfigurationTreeRoot::createWithServiceFactory( _rxFactory, sConfigName ) );

        bool bEnabled = false;
        OSL_VERIFY( aConfiguration.getNodeValue( sPropertyName ) >>= bEnabled );
        return bEnabled;
    }
}
//-----------------------------------------------------------------------
void FmPropBrw::impl_createPropertyBrowser_throw( FmFormShell* _pFormShell )
{
    // the document in which we live
    Reference< XInterface > xDocument;
    if ( _pFormShell && _pFormShell->GetObjectShell() )
        xDocument = _pFormShell->GetObjectShell()->GetModel();

    // the context of the controls in our document
    Reference< awt::XControlContainer > xControlContext;
    if ( _pFormShell && _pFormShell->GetFormView() )
    {
        SdrPageView* pPageView = _pFormShell->GetFormView()->GetSdrPageView();
		
		if(pPageView)
		{
			SdrPageWindow* pPageWindow = pPageView->GetPageWindow(0L);
			
			if(pPageWindow)
			{
			    xControlContext = pPageWindow->GetControlContainer();
			}
		}
    }

    // the default parent window for message boxes
    Reference< XWindow > xParentWindow( VCLUnoHelper::GetInterface ( this ) );

    // the mapping from control models to control shapes
    Reference< XMap > xControlMap;
    FmFormPage* pFormPage = _pFormShell ? _pFormShell->GetCurPage() : NULL;
    if ( pFormPage )
        xControlMap = pFormPage->GetImpl().getControlToShapeMap();

    // our own component context
    Reference< XPropertySet > xFactoryProperties( m_xORB, UNO_QUERY_THROW );
    Reference< XComponentContext > xOwnContext(
        xFactoryProperties->getPropertyValue( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "DefaultContext" ) ) ),
        UNO_QUERY_THROW );

    // a ComponentContext for the
    ::cppu::ContextEntry_Init aHandlerContextInfo[] =
    {
        ::cppu::ContextEntry_Init( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "ContextDocument" ) ), makeAny( xDocument ) ),
        ::cppu::ContextEntry_Init( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "DialogParentWindow" ) ), makeAny( xParentWindow ) ),
        ::cppu::ContextEntry_Init( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "ControlContext" ) ), makeAny( xControlContext ) ),
        ::cppu::ContextEntry_Init( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "ControlShapeAccess" ) ), makeAny( xControlMap ) )
    };
    m_xInspectorContext.set(
        ::cppu::createComponentContext( aHandlerContextInfo, sizeof( aHandlerContextInfo ) / sizeof( aHandlerContextInfo[0] ),
        xOwnContext ) );

    bool bEnableHelpSection = lcl_shouldEnableHelpSection( m_xORB );

    // an object inspector model
    m_xInspectorModel =
            bEnableHelpSection
        ?   DefaultFormComponentInspectorModel::createWithHelpSection( m_xInspectorContext, 3, 5 )
        :   DefaultFormComponentInspectorModel::createDefault( m_xInspectorContext );

    // an object inspector
    m_xBrowserController = m_xBrowserController.query(
        ObjectInspector::createWithModel(
            m_xInspectorContext, m_xInspectorModel
        ) );

    if ( !m_xBrowserController.is() )
	{
        ::rtl::OUString sServiceName( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.inspection.ObjectInspector" ) );
		ShowServiceNotAvailableError( GetParent(), sServiceName, sal_True );
	}
	else
	{
		m_xBrowserController->attachFrame( m_xMeAsFrame );
		m_xBrowserComponentWindow = m_xMeAsFrame->getComponentWindow();
		DBG_ASSERT( m_xBrowserComponentWindow.is(), "FmPropBrw::impl_createPropertyBrowser_throw: attached the controller, but have no component window!" );
	}

    if ( bEnableHelpSection )
    {
        Reference< XObjectInspector > xInspector( m_xBrowserController, UNO_QUERY_THROW );
        Reference< XObjectInspectorUI > xInspectorUI( xInspector->getInspectorUI() );
        Reference< XInterface > xDefaultHelpProvider( DefaultHelpProvider::create( m_xInspectorContext, xInspectorUI ) );
    }
}

//-----------------------------------------------------------------------
void FmPropBrw::impl_ensurePropertyBrowser_nothrow( FmFormShell* _pFormShell )
{
    // the document in which we live
    Reference< XInterface > xDocument;
    SfxObjectShell* pObjectShell = _pFormShell ? _pFormShell->GetObjectShell() : NULL;
    if ( pObjectShell )
        xDocument = pObjectShell->GetModel();
    if ( ( xDocument == m_xLastKnownDocument ) && m_xBrowserController.is() )
        // nothing to do
        return;

    try
    {
        // clean up any previous instances of the object inspector
        if ( m_xMeAsFrame.is() )
            m_xMeAsFrame->setComponent( NULL, NULL );
        else
    	    ::comphelper::disposeComponent( m_xBrowserController );
        m_xBrowserController.clear();
        m_xInspectorModel.clear();
        m_xBrowserComponentWindow.clear();

        // and create a new one
        impl_createPropertyBrowser_throw( _pFormShell );
    }
    catch( const Exception& )
    {
        DBG_UNHANDLED_EXCEPTION();
    }
    m_xLastKnownDocument = xDocument;
}

//-----------------------------------------------------------------------
void FmPropBrw::StateChanged(sal_uInt16 nSID, SfxItemState eState, const SfxPoolItem* pState)
{
	if (!pState  || SID_FM_PROPERTY_CONTROL != nSID)
		return;

    m_bInStateChange = true;
	try
	{
		if (eState >= SFX_ITEM_AVAILABLE)
		{
			FmFormShell* pShell = PTR_CAST(FmFormShell,((SfxObjectItem*)pState)->GetShell());
            InterfaceBag aSelection;
			if ( pShell )
                pShell->GetImpl()->getCurrentSelection( aSelection );

            impl_ensurePropertyBrowser_nothrow( pShell );

            // set the new object to inspect
            implSetNewSelection( aSelection );

            // if this is the first time we're here, some additional things need to be done ...
			if ( m_bInitialStateChange )
			{
                // if we're just newly created, we want to have the focus
				PostUserEvent( LINK( this, FmPropBrw, OnAsyncGetFocus ) );

                // and additionally, we want to show the page which was active during
                // our previous incarnation
                if ( m_sLastActivePage.getLength() )
                {
                    try
                    {
                        if ( m_xBrowserController.is() )
                            m_xBrowserController->restoreViewData( makeAny( m_sLastActivePage ) );
                    }
                    catch( const Exception& )
                    {
                        OSL_ENSURE( sal_False, "FmPropBrw::StateChanged: caught an exception while setting the initial page!" );
                    }
                }

				m_bInitialStateChange = sal_False;
			}

		}
		else
		{
			implSetNewSelection( InterfaceBag() );
		}
	}
	catch (Exception&)
	{
		DBG_ERROR("FmPropBrw::StateChanged: Exception occured!");
	}
    m_bInStateChange = false;
}