Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1662 insertions, 0 deletions

diff --git a/extensions/source/propctrlr/propcontroller.cxx b/extensions/source/propctrlr/propcontroller.cxx
new file mode 100644
index 000000000..d75c117a3
--- /dev/null
+++ b/extensions/source/propctrlr/propcontroller.cxx
@@ -0,0 +1,1662 @@
+/* -*- 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 "pcrservices.hxx"
+#include "propcontroller.hxx"
+#include "handlerhelper.hxx"
+#include "standardcontrol.hxx"
+#include "linedescriptor.hxx"
+#include <strings.hrc>
+#include "propertyeditor.hxx"
+#include "modulepcr.hxx"
+#include "formstrings.hxx"
+#include "formbrowsertools.hxx"
+#include "propertycomposer.hxx"
+
+#include <com/sun/star/awt/XWindow.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/lang/NoSupportException.hpp>
+#include <com/sun/star/inspection/PropertyControlType.hpp>
+#include <com/sun/star/ucb/AlreadyInitializedException.hpp>
+#include <com/sun/star/lang/XSingleComponentFactory.hpp>
+#include <com/sun/star/lang/XSingleServiceFactory.hpp>
+#include <com/sun/star/util/VetoException.hpp>
+#include <tools/debug.hxx>
+#include <tools/diagnose_ex.h>
+#include <toolkit/awt/vclxwindow.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/weld.hxx>
+#include <vcl/weldutils.hxx>
+#include <osl/mutex.hxx>
+#include <cppuhelper/queryinterface.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <algorithm>
+#include <sal/log.hxx>
+
+// !!! outside the namespace !!!
+extern "C" void createRegistryInfo_OPropertyBrowserController()
+{
+    ::pcr::OAutoRegistration< ::pcr::OPropertyBrowserController > aAutoRegistration;
+}
+
+namespace pcr
+{
+    using namespace ::com::sun::star;
+    using namespace ::com::sun::star::uno;
+    using namespace ::com::sun::star::awt;
+    using namespace ::com::sun::star::beans;
+    using namespace ::com::sun::star::script;
+    using namespace ::com::sun::star::lang;
+    using namespace ::com::sun::star::container;
+    using namespace ::com::sun::star::frame;
+    using namespace ::com::sun::star::util;
+    using namespace ::com::sun::star::inspection;
+    using namespace ::com::sun::star::ucb;
+    using namespace ::comphelper;
+
+    //= OPropertyBrowserController
+    OPropertyBrowserController::OPropertyBrowserController( const Reference< XComponentContext >& _rxContext )
+            :m_xContext(_rxContext)
+            ,m_aDisposeListeners( m_aMutex )
+            ,m_aControlObservers( m_aMutex )
+            ,m_bContainerFocusListening( false )
+            ,m_bSuspendingPropertyHandlers( false )
+            ,m_bConstructed( false )
+            ,m_bBindingIntrospectee( false )
+    {
+    }
+
+    OPropertyBrowserController::~OPropertyBrowserController()
+    {
+        // stop listening for property changes
+        acquire();
+        stopInspection( true );
+    }
+
+    IMPLEMENT_FORWARD_REFCOUNT( OPropertyBrowserController, OPropertyBrowserController_Base )
+
+    Any SAL_CALL OPropertyBrowserController::queryInterface( const Type& _rType )
+    {
+        Any aReturn = OPropertyBrowserController_Base::queryInterface( _rType );
+        if ( !aReturn.hasValue() )
+            aReturn = ::cppu::queryInterface(
+                _rType,
+                static_cast< XObjectInspectorUI* >( this )
+            );
+        return aReturn;
+    }
+
+
+    void OPropertyBrowserController::startContainerWindowListening()
+    {
+        if (m_bContainerFocusListening)
+            return;
+
+        if (m_xFrame.is())
+        {
+            Reference< XWindow > xContainerWindow = m_xFrame->getContainerWindow();
+            if (xContainerWindow.is())
+            {
+                xContainerWindow->addFocusListener(this);
+                m_bContainerFocusListening = true;
+            }
+        }
+
+        DBG_ASSERT(m_bContainerFocusListening, "OPropertyBrowserController::startContainerWindowListening: unable to start listening (inconsistence)!");
+    }
+
+
+    void OPropertyBrowserController::stopContainerWindowListening()
+    {
+        if (!m_bContainerFocusListening)
+            return;
+
+        if (m_xFrame.is())
+        {
+            Reference< XWindow > xContainerWindow = m_xFrame->getContainerWindow();
+            if (xContainerWindow.is())
+            {
+                xContainerWindow->removeFocusListener(this);
+                m_bContainerFocusListening = false;
+            }
+        }
+
+        DBG_ASSERT(!m_bContainerFocusListening, "OPropertyBrowserController::stopContainerWindowListening: unable to stop listening (inconsistence)!");
+    }
+
+
+    Reference< XObjectInspectorModel > SAL_CALL OPropertyBrowserController::getInspectorModel()
+    {
+        return m_xModel;
+    }
+
+
+    void OPropertyBrowserController::impl_initializeView_nothrow()
+    {
+        OSL_PRECOND( haveView(), "OPropertyBrowserController::impl_initializeView_nothrow: not to be called when we have no view!" );
+        if ( !haveView() )
+            return;
+
+        if ( !m_xModel.is() )
+            // allowed
+            return;
+
+        try
+        {
+            getPropertyBox().EnableHelpSection( m_xModel->getHasHelpSection() );
+        }
+        catch( const Exception& )
+        {
+            DBG_UNHANDLED_EXCEPTION("extensions.propctrlr");
+        }
+    }
+
+
+    bool OPropertyBrowserController::impl_isReadOnlyModel_throw() const
+    {
+        if ( !m_xModel.is() )
+            return false;
+
+        return m_xModel->getIsReadOnly();
+    }
+
+
+    void OPropertyBrowserController::impl_startOrStopModelListening_nothrow( bool _bDoListen ) const
+    {
+        try
+        {
+            Reference< XPropertySet > xModelProperties( m_xModel, UNO_QUERY );
+            if ( !xModelProperties.is() )
+                // okay, so the model doesn't want to change its properties
+                // dynamically - fine with us
+                return;
+
+            void (SAL_CALL XPropertySet::*pListenerOperation)( const OUString&, const Reference< XPropertyChangeListener >& )
+                = _bDoListen ? &XPropertySet::addPropertyChangeListener : &XPropertySet::removePropertyChangeListener;
+
+            (xModelProperties.get()->*pListenerOperation)(
+                OUString(  "IsReadOnly"  ),
+                const_cast< OPropertyBrowserController* >( this )
+            );
+        }
+        catch( const Exception& )
+        {
+            DBG_UNHANDLED_EXCEPTION("extensions.propctrlr");
+        }
+    }
+
+
+    void OPropertyBrowserController::impl_bindToNewModel_nothrow( const Reference< XObjectInspectorModel >& _rxInspectorModel )
+    {
+        impl_startOrStopModelListening_nothrow( false );
+        m_xModel = _rxInspectorModel;
+        impl_startOrStopModelListening_nothrow( true );
+
+        // initialize the view, if we already have one
+        if ( haveView() )
+            impl_initializeView_nothrow();
+
+        // inspect again, if we already have inspectees
+        if ( !m_aInspectedObjects.empty() )
+            impl_rebindToInspectee_nothrow( m_aInspectedObjects );
+    }
+
+
+    void SAL_CALL OPropertyBrowserController::setInspectorModel( const Reference< XObjectInspectorModel >& _inspectorModel )
+    {
+        ::osl::MutexGuard aGuard( m_aMutex );
+
+        if ( m_xModel == _inspectorModel )
+            return;
+
+        impl_bindToNewModel_nothrow( _inspectorModel );
+    }
+
+
+    Reference< XObjectInspectorUI > SAL_CALL OPropertyBrowserController::getInspectorUI()
+    {
+        // we're derived from this interface, though we do not expose it in queryInterface and getTypes.
+        return this;
+    }
+
+
+    void SAL_CALL OPropertyBrowserController::inspect( const Sequence< Reference< XInterface > >& _rObjects )
+    {
+        SolarMutexGuard aSolarGuard;
+        ::osl::MutexGuard aGuard( m_aMutex );
+
+        if ( m_bSuspendingPropertyHandlers || !suspendAll_nothrow() )
+        {   // we already are trying to suspend the component (this is somewhere up the stack)
+            // OR one of our property handlers raised a veto against closing. Well, we *need* to close
+            // it in order to inspect another object.
+            throw VetoException();
+        }
+        if ( m_bBindingIntrospectee )
+            throw VetoException();
+
+        m_bBindingIntrospectee = true;
+        impl_rebindToInspectee_nothrow( InterfaceArray( _rObjects.begin(), _rObjects.end() ) );
+        m_bBindingIntrospectee = false;
+
+    }
+
+
+    Reference< XDispatch > SAL_CALL OPropertyBrowserController::queryDispatch( const URL& /*URL*/, const OUString& /*TargetFrameName*/, ::sal_Int32 /*SearchFlags*/ )
+    {
+        // we don't have any dispatches at all, right now
+        return Reference< XDispatch >();
+    }
+
+
+    Sequence< Reference< XDispatch > > SAL_CALL OPropertyBrowserController::queryDispatches( const Sequence< DispatchDescriptor >& Requests )
+    {
+        Sequence< Reference< XDispatch > > aReturn;
+        sal_Int32 nLen = Requests.getLength();
+        aReturn.realloc( nLen );
+
+        Reference< XDispatch >* pReturn     = aReturn.getArray();
+        const   Reference< XDispatch >* pReturnEnd  = aReturn.getArray() + nLen;
+        const   DispatchDescriptor*     pDescripts  = Requests.getConstArray();
+
+        for ( ; pReturn != pReturnEnd; ++ pReturn, ++pDescripts )
+            *pReturn = queryDispatch( pDescripts->FeatureURL, pDescripts->FrameName, pDescripts->SearchFlags );
+
+        return aReturn;
+    }
+
+
+    void SAL_CALL OPropertyBrowserController::initialize( const Sequence< Any >& _arguments )
+    {
+        if ( m_bConstructed )
+            throw AlreadyInitializedException();
+
+        StlSyntaxSequence< Any > arguments( _arguments );
+        if ( arguments.empty() )
+        {   // constructor: "createDefault()"
+            m_bConstructed = true;
+            return;
+        }
+
+        Reference< XObjectInspectorModel > xModel;
+        if ( arguments.size() == 1 )
+        {   // constructor: "createWithModel( XObjectInspectorModel )"
+            if ( !( arguments[0] >>= xModel ) )
+                throw IllegalArgumentException( OUString(), *this, 0 );
+            createWithModel( xModel );
+            return;
+        }
+
+        throw IllegalArgumentException( OUString(), *this, 0 );
+    }
+
+
+    void OPropertyBrowserController::createWithModel( const Reference< XObjectInspectorModel >& _rxModel )
+    {
+        osl_atomic_increment( &m_refCount );
+        {
+            setInspectorModel( _rxModel );
+        }
+        osl_atomic_decrement( &m_refCount );
+
+        m_bConstructed = true;
+    }
+
+
+    void SAL_CALL OPropertyBrowserController::attachFrame( const Reference< XFrame >& _rxFrame )
+    {
+        SolarMutexGuard aSolarGuard;
+        ::osl::MutexGuard aGuard( m_aMutex );
+
+        if (_rxFrame.is() && haveView())
+            throw RuntimeException("Unable to attach to a second frame.",*this);
+
+        // revoke as focus listener from the old container window
+        stopContainerWindowListening();
+
+        m_xPropView.reset();
+        m_xBuilder.reset();
+
+        m_xFrame = _rxFrame;
+        if (!m_xFrame.is())
+            return;
+
+        // TODO: this construction perhaps should be done outside. Don't know the exact meaning of attachFrame.
+        // Maybe it is intended to only announce the frame to the controller, and the instance doing this
+        // announcement is responsible for calling setComponent, too.
+        Reference<XWindow> xContainerWindow = m_xFrame->getContainerWindow();
+
+        OUString sUIFile("modules/spropctrlr/ui/formproperties.ui");
+        std::unique_ptr<weld::Builder> xBuilder;
+
+        if (weld::TransportAsXWindow* pTunnel = dynamic_cast<weld::TransportAsXWindow*>(xContainerWindow.get()))
+        {
+            xBuilder.reset(Application::CreateBuilder(pTunnel->getWidget(), sUIFile));
+        }
+        else
+        {
+            VCLXWindow* pContainerWindow = comphelper::getUnoTunnelImplementation<VCLXWindow>(xContainerWindow);
+            VclPtr<vcl::Window> pParentWin = pContainerWindow ? pContainerWindow->GetWindow() : VclPtr<vcl::Window>();
+            if (!pParentWin)
+                throw RuntimeException("The frame is invalid. Unable to extract the container window.",*this);
+            xBuilder.reset(Application::CreateInterimBuilder(pParentWin, sUIFile));
+        }
+
+        Construct(xContainerWindow, std::move(xBuilder));
+
+        startContainerWindowListening();
+
+        UpdateUI();
+    }
+
+    sal_Bool SAL_CALL OPropertyBrowserController::attachModel( const Reference< XModel >& _rxModel )
+    {
+        Reference< XObjectInspectorModel > xModel( _rxModel, UNO_QUERY );
+        if ( !xModel.is() )
+            return false;
+
+        setInspectorModel( xModel );
+        return getInspectorModel() == _rxModel;
+    }
+
+
+    bool OPropertyBrowserController::suspendAll_nothrow()
+    {
+        // if there is a handle inside its "onInteractivePropertySelection" method,
+        // then veto
+        // Normally, we could expect every handler to do this itself, but being
+        // realistic, it's safer to handle this here in general.
+        if ( m_xInteractiveHandler.is() )
+            return false;
+
+        m_bSuspendingPropertyHandlers = true;
+        bool bHandlerVeto = !suspendPropertyHandlers_nothrow( true );
+        m_bSuspendingPropertyHandlers = false;
+        return !bHandlerVeto;
+    }
+
+
+    bool OPropertyBrowserController::suspendPropertyHandlers_nothrow( bool _bSuspend )
+    {
+        PropertyHandlerArray aAllHandlers;  // will contain every handler exactly once
+        for (auto const& propertyHandler : m_aPropertyHandlers)
+        {
+            if ( std::find( aAllHandlers.begin(), aAllHandlers.end(), propertyHandler.second ) != aAllHandlers.end() )
+                // already visited this particular handler (m_aPropertyHandlers usually contains
+                // the same handler more than once)
+                continue;
+            aAllHandlers.push_back(propertyHandler.second);
+        }
+
+        for (auto const& handler : aAllHandlers)
+        {
+            try
+            {
+                if ( !handler->suspend( _bSuspend ) )
+                    if ( _bSuspend )
+                        // if we're not suspending, but reactivating, ignore the error
+                        return false;
+            }
+            catch( const Exception& )
+            {
+                TOOLS_WARN_EXCEPTION( "extensions.propctrlr", "OPropertyBrowserController::suspendPropertyHandlers_nothrow" );
+            }
+        }
+        return true;
+    }
+
+
+    sal_Bool SAL_CALL OPropertyBrowserController::suspend( sal_Bool _bSuspend )
+    {
+        ::osl::MutexGuard aGuard( m_aMutex );
+        OSL_ENSURE( haveView(), "OPropertyBrowserController::suspend: don't have a view anymore!" );
+
+        if ( !_bSuspend )
+        {   // this means a "suspend" is to be "revoked"
+            suspendPropertyHandlers_nothrow( false );
+            // we ourself cannot revoke our suspend
+            return false;
+        }
+
+        if ( !suspendAll_nothrow() )
+            return false;
+
+        // commit the editor's content
+        if ( haveView() )
+            getPropertyBox().CommitModified();
+
+        // stop listening
+        stopContainerWindowListening();
+
+        // outta here
+        return true;
+    }
+
+
+    Any SAL_CALL OPropertyBrowserController::getViewData(  )
+    {
+        return makeAny( m_sPageSelection );
+    }
+
+
+    void SAL_CALL OPropertyBrowserController::restoreViewData( const Any& Data )
+    {
+        OUString sPageSelection;
+        if ( ( Data >>= sPageSelection ) && !sPageSelection.isEmpty() )
+        {
+            m_sPageSelection = sPageSelection;
+            selectPageFromViewData();
+        }
+    }
+
+    Reference< XModel > SAL_CALL OPropertyBrowserController::getModel(  )
+    {
+        // have no model
+        return Reference< XModel >();
+    }
+
+    Reference< XFrame > SAL_CALL OPropertyBrowserController::getFrame(  )
+    {
+        return m_xFrame;
+    }
+
+    void SAL_CALL OPropertyBrowserController::dispose()
+    {
+        SolarMutexGuard aSolarGuard;
+
+        // stop inspecting the current object
+        stopInspection( false );
+
+        // say our dispose listeners goodbye
+        css::lang::EventObject aEvt;
+        aEvt.Source = static_cast< ::cppu::OWeakObject* >(this);
+        m_aDisposeListeners.disposeAndClear(aEvt);
+        m_aControlObservers.disposeAndClear(aEvt);
+
+        m_xPropView.reset();
+        m_xBuilder.reset();
+
+        if ( m_xView.is() )
+            m_xView->removeEventListener( static_cast< XPropertyChangeListener* >( this ) );
+        m_xView.clear( );
+
+        m_aInspectedObjects.clear();
+        impl_bindToNewModel_nothrow( nullptr );
+    }
+
+    void SAL_CALL OPropertyBrowserController::addEventListener( const Reference< XEventListener >& _rxListener )
+    {
+        m_aDisposeListeners.addInterface(_rxListener);
+    }
+
+    void SAL_CALL OPropertyBrowserController::removeEventListener( const Reference< XEventListener >& _rxListener )
+    {
+        m_aDisposeListeners.removeInterface(_rxListener);
+    }
+
+    OUString SAL_CALL OPropertyBrowserController::getImplementationName(  )
+    {
+        return getImplementationName_static();
+    }
+
+    sal_Bool SAL_CALL OPropertyBrowserController::supportsService( const OUString& ServiceName )
+    {
+        return cppu::supportsService(this, ServiceName);
+    }
+
+
+    Sequence< OUString > SAL_CALL OPropertyBrowserController::getSupportedServiceNames(  )
+    {
+        return getSupportedServiceNames_static();
+    }
+
+
+    OUString OPropertyBrowserController::getImplementationName_static(  )
+    {
+        return "org.openoffice.comp.extensions.ObjectInspector";
+    }
+
+
+    Sequence< OUString > OPropertyBrowserController::getSupportedServiceNames_static(  )
+    {
+        return { "com.sun.star.inspection.ObjectInspector" };
+    }
+
+
+    Reference< XInterface > OPropertyBrowserController::Create(const Reference< XComponentContext >& _rxContext)
+    {
+        return *(new OPropertyBrowserController( _rxContext ) );
+    }
+
+
+    void SAL_CALL OPropertyBrowserController::focusGained( const FocusEvent& _rSource )
+    {
+        Reference< XWindow > xSourceWindow(_rSource.Source, UNO_QUERY);
+        Reference< XWindow > xContainerWindow;
+        if (m_xFrame.is())
+            xContainerWindow = m_xFrame->getContainerWindow();
+
+        if ( xContainerWindow.get() == xSourceWindow.get() )
+        {   // our container window got the focus
+            if ( haveView() )
+                getPropertyBox().GrabFocus();
+        }
+    }
+
+
+    void SAL_CALL OPropertyBrowserController::focusLost( const FocusEvent& /*_rSource*/ )
+    {
+        // not interested in
+    }
+
+
+    void SAL_CALL OPropertyBrowserController::disposing( const EventObject& _rSource )
+    {
+        if ( m_xView.is() && ( m_xView == _rSource.Source ) )
+        {
+            m_xView = nullptr;
+            m_xPropView.reset();
+            m_xBuilder.reset();
+        }
+
+        auto it = std::find_if(m_aInspectedObjects.begin(), m_aInspectedObjects.end(),
+            [&_rSource](const InterfaceArray::value_type& rxObj) { return rxObj == _rSource.Source; });
+        if (it != m_aInspectedObjects.end())
+            m_aInspectedObjects.erase(it);
+    }
+
+
+    IMPL_LINK_NOARG(OPropertyBrowserController, OnPageActivation, LinkParamNone*, void)
+    {
+        updateViewDataFromActivePage();
+    }
+
+
+    void OPropertyBrowserController::updateViewDataFromActivePage()
+    {
+        if (!haveView())
+            return;
+
+        OUString sOldSelection = m_sPageSelection;
+        m_sPageSelection.clear();
+
+        const sal_uInt16 nCurrentPage = m_xPropView->getActivePage();
+        if ( sal_uInt16(-1) != nCurrentPage )
+        {
+            for (auto const& pageId : m_aPageIds)
+            {
+                if ( nCurrentPage == pageId.second )
+                {
+                    m_sPageSelection = pageId.first;
+                    break;
+                }
+            }
+        }
+
+        if ( !m_sPageSelection.isEmpty() )
+            m_sLastValidPageSelection = m_sPageSelection;
+        else if ( !sOldSelection.isEmpty() )
+            m_sLastValidPageSelection = sOldSelection;
+    }
+
+
+    sal_uInt16 OPropertyBrowserController::impl_getPageIdForCategory_nothrow( const OUString& _rCategoryName ) const
+    {
+        sal_uInt16 nPageId = sal_uInt16(-1);
+        HashString2Int16::const_iterator pagePos = m_aPageIds.find( _rCategoryName );
+        if ( pagePos != m_aPageIds.end() )
+            nPageId = pagePos->second;
+        return nPageId;
+    }
+
+    void OPropertyBrowserController::selectPageFromViewData()
+    {
+        sal_uInt16 nNewPage = impl_getPageIdForCategory_nothrow( m_sPageSelection );
+
+        if ( haveView() && ( nNewPage != sal_uInt16(-1) ) )
+            m_xPropView->activatePage( nNewPage );
+
+        // just in case ...
+        updateViewDataFromActivePage();
+    }
+
+    void OPropertyBrowserController::Construct(const Reference<XWindow>& rContainerWindow, std::unique_ptr<weld::Builder> xBuilder)
+    {
+        DBG_ASSERT(!haveView(), "OPropertyBrowserController::Construct: already have a view!");
+        assert(xBuilder && "OPropertyBrowserController::Construct: invalid parent window!");
+
+        m_xBuilder = std::move(xBuilder);
+
+        m_xPropView.reset(new OPropertyBrowserView(m_xContext, *m_xBuilder));
+        m_xPropView->setPageActivationHandler(LINK(this, OPropertyBrowserController, OnPageActivation));
+
+        // add as dispose listener for our view. The view is disposed by the frame we're plugged into,
+        // and this disposal _deletes_ the view, so it would be deadly if we use our m_xPropView member
+        // after that
+        m_xView = rContainerWindow;
+        if (m_xView.is())
+            m_xView->addEventListener( static_cast< XPropertyChangeListener* >( this ) );
+
+        getPropertyBox().SetLineListener(this);
+        getPropertyBox().SetControlObserver(this);
+        impl_initializeView_nothrow();
+    }
+
+    void SAL_CALL OPropertyBrowserController::propertyChange( const PropertyChangeEvent& _rEvent )
+    {
+        if ( _rEvent.Source == m_xModel )
+        {
+            if ( _rEvent.PropertyName == "IsReadOnly" )
+               // this is a huge cudgel, admitted.
+                // The problem is that in case we were previously read-only, all our controls
+                // were created read-only, too. We cannot simply switch them to not-read-only.
+                // Even if they had an API for this, we do not know whether they were
+                // originally created read-only, or if they are read-only just because
+                // the model was.
+                impl_rebindToInspectee_nothrow( m_aInspectedObjects );
+            return;
+        }
+
+        if ( m_sCommittingProperty == _rEvent.PropertyName )
+            return;
+
+        if ( !haveView() )
+            return;
+
+        Any aNewValue( _rEvent.NewValue );
+        if ( impl_hasPropertyHandlerFor_nothrow( _rEvent.PropertyName ) )
+        {
+            // forward the new value to the property box, to reflect the change in the UI
+            aNewValue = impl_getPropertyValue_throw( _rEvent.PropertyName );
+
+            // check whether the state is ambiguous. This is interesting in case we display the properties
+            // for multiple objects at once: In this case, we'll get a notification from one of the objects,
+            // but need to care for the "composed" value, which can be "ambiguous".
+            PropertyHandlerRef xHandler( impl_getHandlerForProperty_throw( _rEvent.PropertyName ), UNO_SET_THROW );
+            PropertyState ePropertyState( xHandler->getPropertyState( _rEvent.PropertyName ) );
+            bool bAmbiguousValue = ( PropertyState_AMBIGUOUS_VALUE == ePropertyState );
+
+            getPropertyBox().SetPropertyValue( _rEvent.PropertyName, aNewValue, bAmbiguousValue );
+        }
+
+        // if it's an actuating property, then update the UI for any dependent
+        // properties
+        if ( impl_isActuatingProperty_nothrow( _rEvent.PropertyName ) )
+            impl_broadcastPropertyChange_nothrow( _rEvent.PropertyName, aNewValue, _rEvent.OldValue, false );
+    }
+
+    Reference< XPropertyControl > SAL_CALL OPropertyBrowserController::createPropertyControl( ::sal_Int16 ControlType, sal_Bool bCreateReadOnly )
+    {
+        ::osl::MutexGuard aGuard( m_aMutex );
+
+        Reference< XPropertyControl > xControl;
+
+        // read-only-ness
+        bCreateReadOnly |= impl_isReadOnlyModel_throw() ? 1 : 0;
+
+        switch ( ControlType )
+        {
+            case PropertyControlType::MultiLineTextField:
+            case PropertyControlType::StringListField:
+            {
+                bool bMultiLineTextField = ControlType == PropertyControlType::MultiLineTextField;
+                std::unique_ptr<weld::Builder> xBuilder(PropertyHandlerHelper::makeBuilder("modules/spropctrlr/ui/multiline.ui", m_xContext));
+                auto pContainer = xBuilder->weld_container("multiline");
+                auto pControl = new OMultilineEditControl(std::move(pContainer), std::move(xBuilder),
+                                                          bMultiLineTextField ? eMultiLineText : eStringList, bCreateReadOnly);
+                pControl->SetModifyHandler();
+                xControl = pControl;
+                break;
+            }
+
+            case PropertyControlType::ListBox:
+            {
+                std::unique_ptr<weld::Builder> xBuilder(PropertyHandlerHelper::makeBuilder("modules/spropctrlr/ui/listbox.ui", m_xContext));
+                auto pComboBox = xBuilder->weld_combo_box("listbox");
+                auto pControl = new OListboxControl(std::move(pComboBox), std::move(xBuilder), bCreateReadOnly);
+                pControl->SetModifyHandler();
+                xControl = pControl;
+                break;
+            }
+
+            case PropertyControlType::ComboBox:
+            {
+                std::unique_ptr<weld::Builder> xBuilder(PropertyHandlerHelper::makeBuilder("modules/spropctrlr/ui/combobox.ui", m_xContext));
+                auto pComboBox = xBuilder->weld_combo_box("combobox");
+                auto pControl = new OComboboxControl(std::move(pComboBox), std::move(xBuilder), bCreateReadOnly);
+                pControl->SetModifyHandler();
+                xControl = pControl;
+                break;
+            }
+
+            case PropertyControlType::TextField:
+            case PropertyControlType::CharacterField:
+            {
+                bool bCharacterField = ControlType == PropertyControlType::CharacterField;
+                std::unique_ptr<weld::Builder> xBuilder(PropertyHandlerHelper::makeBuilder("modules/spropctrlr/ui/textfield.ui", m_xContext));
+                auto pEntry = xBuilder->weld_entry("textfield");
+                auto pControl = new OEditControl(std::move(pEntry), std::move(xBuilder), bCharacterField, bCreateReadOnly);
+                pControl->SetModifyHandler();
+                xControl = pControl;
+                break;
+            }
+
+            case PropertyControlType::NumericField:
+            {
+                std::unique_ptr<weld::Builder> xBuilder(PropertyHandlerHelper::makeBuilder("modules/spropctrlr/ui/numericfield.ui", m_xContext));
+                auto pSpinButton = xBuilder->weld_metric_spin_button("numericfield", FieldUnit::NONE);
+                auto pControl = new ONumericControl(std::move(pSpinButton), std::move(xBuilder), bCreateReadOnly);
+                pControl->SetModifyHandler();
+                xControl = pControl;
+                break;
+            }
+
+            case PropertyControlType::DateTimeField:
+            {
+                std::unique_ptr<weld::Builder> xBuilder(PropertyHandlerHelper::makeBuilder("modules/spropctrlr/ui/datetimefield.ui", m_xContext));
+                auto pContainer = xBuilder->weld_container("datetimefield");
+                auto pControl = new ODateTimeControl(std::move(pContainer), std::move(xBuilder), bCreateReadOnly);
+                pControl->SetModifyHandler();
+                xControl = pControl;
+                break;
+            }
+
+            case PropertyControlType::DateField:
+            {
+                std::unique_ptr<weld::Builder> xBuilder(PropertyHandlerHelper::makeBuilder("modules/spropctrlr/ui/datefield.ui", m_xContext));
+                auto pMenuButton = xBuilder->weld_menu_button("datefield");
+                auto pControl = new ODateControl(std::make_unique<SvtCalendarBox>(std::move(pMenuButton)), std::move(xBuilder), bCreateReadOnly);
+                pControl->SetModifyHandler();
+                xControl = pControl;
+                break;
+            }
+
+            case PropertyControlType::TimeField:
+            {
+                std::unique_ptr<weld::Builder> xBuilder(PropertyHandlerHelper::makeBuilder("modules/spropctrlr/ui/timefield.ui", m_xContext));
+                auto pTimeSpinButton = xBuilder->weld_time_spin_button("timefield", TimeFieldFormat::F_SEC);
+                auto pControl = new OTimeControl(std::move(pTimeSpinButton), std::move(xBuilder), bCreateReadOnly);
+                pControl->SetModifyHandler();
+                xControl = pControl;
+                break;
+            }
+
+            case PropertyControlType::ColorListBox:
+            {
+                weld::Window* pTopLevel = PropertyHandlerHelper::getDialogParentFrame(m_xContext);
+                std::unique_ptr<weld::Builder> xBuilder(PropertyHandlerHelper::makeBuilder("modules/spropctrlr/ui/colorlistbox.ui", m_xContext));
+                auto pMenuButton = xBuilder->weld_menu_button("colorlistbox");
+                auto pControl = new OColorControl(std::make_unique<ColorListBox>(std::move(pMenuButton), pTopLevel), std::move(xBuilder), bCreateReadOnly);
+                pControl->SetModifyHandler();
+                xControl = pControl;
+                break;
+            }
+
+            case PropertyControlType::HyperlinkField:
+            {
+                std::unique_ptr<weld::Builder> xBuilder(PropertyHandlerHelper::makeBuilder("modules/spropctrlr/ui/hyperlinkfield.ui", m_xContext));
+                auto pContainer = xBuilder->weld_container("hyperlinkfield");
+                auto pControl = new OHyperlinkControl(std::move(pContainer), std::move(xBuilder), bCreateReadOnly);
+                pControl->SetModifyHandler();
+                xControl = pControl;
+                break;
+            }
+
+            default:
+                throw IllegalArgumentException( OUString(), *this, 1 );
+        }
+
+        return xControl;
+    }
+
+
+    void OPropertyBrowserController::impl_toggleInspecteeListening_nothrow( bool _bOn )
+    {
+        for (auto const& inspectedObject : m_aInspectedObjects)
+        {
+            try
+            {
+                Reference< XComponent > xComp( inspectedObject, UNO_QUERY );
+                if ( xComp.is() )
+                {
+                    if ( _bOn )
+                        xComp->addEventListener( static_cast< XPropertyChangeListener* >( this ) );
+                    else
+                        xComp->removeEventListener( static_cast< XPropertyChangeListener* >( this ) );
+                }
+            }
+            catch( const Exception& )
+            {
+                DBG_UNHANDLED_EXCEPTION("extensions.propctrlr");
+            }
+        }
+    }
+
+
+    void OPropertyBrowserController::stopInspection( bool _bCommitModified )
+    {
+        if ( haveView() )
+        {
+            if ( _bCommitModified )
+                // commit the editor's content
+                getPropertyBox().CommitModified();
+
+            // hide the property box so that it does not flicker
+            getPropertyBox().Hide();
+
+            // clear the property box
+            getPropertyBox().ClearAll();
+        }
+
+        // destroy the view first
+        if ( haveView() )
+        {
+            // remove the pages
+            for (auto const& pageId : m_aPageIds)
+                getPropertyBox().RemovePage( pageId.second );
+            clearContainer( m_aPageIds );
+        }
+
+        clearContainer( m_aProperties );
+
+        // de-register as dispose-listener from our inspected objects
+        impl_toggleInspecteeListening_nothrow( false );
+
+        // handlers are obsolete, so is our "composer" for their UI requests
+        if (m_pUIRequestComposer)
+            m_pUIRequestComposer->dispose();
+        m_pUIRequestComposer.reset();
+
+        // clean up the property handlers
+        PropertyHandlerArray aAllHandlers;  // will contain every handler exactly once
+        for (auto const& propertyHandler : m_aPropertyHandlers)
+            if ( std::find( aAllHandlers.begin(), aAllHandlers.end(), propertyHandler.second ) == aAllHandlers.end() )
+                aAllHandlers.push_back( propertyHandler.second );
+
+        for (auto const& handler : aAllHandlers)
+        {
+            try
+            {
+                handler->removePropertyChangeListener( this );
+                handler->dispose();
+            }
+            catch( const DisposedException& )
+            {
+            }
+            catch( const Exception& )
+            {
+                DBG_UNHANDLED_EXCEPTION("extensions.propctrlr");
+            }
+        }
+
+        clearContainer( m_aPropertyHandlers );
+        clearContainer( m_aDependencyHandlers );
+    }
+
+
+    bool OPropertyBrowserController::impl_hasPropertyHandlerFor_nothrow( const OUString& _rPropertyName ) const
+    {
+        PropertyHandlerRepository::const_iterator handlerPos = m_aPropertyHandlers.find( _rPropertyName );
+        return ( handlerPos != m_aPropertyHandlers.end() );
+    }
+
+
+    OPropertyBrowserController::PropertyHandlerRef const & OPropertyBrowserController::impl_getHandlerForProperty_throw( const OUString& _rPropertyName ) const
+    {
+        PropertyHandlerRepository::const_iterator handlerPos = m_aPropertyHandlers.find( _rPropertyName );
+        if ( handlerPos == m_aPropertyHandlers.end() )
+            throw RuntimeException();
+        return handlerPos->second;
+    }
+
+
+    Any OPropertyBrowserController::impl_getPropertyValue_throw( const OUString& _rPropertyName )
+    {
+        PropertyHandlerRef handler = impl_getHandlerForProperty_throw( _rPropertyName );
+        return handler->getPropertyValue( _rPropertyName );
+    }
+
+
+    void OPropertyBrowserController::impl_rebindToInspectee_nothrow( const InterfaceArray& _rObjects )
+    {
+        try
+        {
+            // stop inspecting the old object(s)
+            stopInspection( true );
+
+            // inspect the new object(s)
+            m_aInspectedObjects = _rObjects;
+            doInspection();
+
+            // update the user interface
+            UpdateUI();
+        }
+
+        catch(const Exception&)
+        {
+            OSL_FAIL("OPropertyBrowserController::impl_rebindToInspectee_nothrow: caught an exception !");
+        }
+    }
+
+
+    void OPropertyBrowserController::doInspection()
+    {
+        try
+        {
+
+            // obtain the properties of the object
+            std::vector< Property > aProperties;
+
+            PropertyHandlerArray aPropertyHandlers;
+            getPropertyHandlers( m_aInspectedObjects, aPropertyHandlers );
+
+            PropertyHandlerArray::iterator aHandler( aPropertyHandlers.begin() );
+            while ( aHandler != aPropertyHandlers.end() )
+            {
+                DBG_ASSERT( aHandler->get(), "OPropertyBrowserController::doInspection: invalid handler!" );
+
+                StlSyntaxSequence< Property > aThisHandlersProperties(  (*aHandler)->getSupportedProperties() );
+
+                if ( aThisHandlersProperties.empty() )
+                {
+                    // this handler doesn't know anything about the current inspectee -> ignore it
+                    (*aHandler)->dispose();
+                    aHandler = aPropertyHandlers.erase( aHandler );
+                    continue;
+                }
+
+                // append these properties to our "all properties" array
+                aProperties.reserve( aProperties.size() + aThisHandlersProperties.size() );
+                for (const auto & aThisHandlersPropertie : aThisHandlersProperties)
+                {
+                    auto noPrevious = std::none_of(
+                        aProperties.begin(),
+                        aProperties.end(),
+                        FindPropertyByName( aThisHandlersPropertie.Name )
+                    );
+                    if ( noPrevious )
+                    {
+                        aProperties.push_back( aThisHandlersPropertie );
+                        continue;
+                    }
+
+                    // there already was another (previous) handler which supported this property.
+                    // Don't add it to aProperties, again.
+
+                    // Also, ensure that handlers which previously expressed interest in *changes*
+                    // of this property are not notified.
+                    // This is 'cause we have a new handler which is responsible for this property,
+                    // which means it can give it a completely different meaning than the previous
+                    // handler for this property is prepared for.
+                    std::pair< PropertyHandlerMultiRepository::iterator, PropertyHandlerMultiRepository::iterator >
+                        aDepHandlers = m_aDependencyHandlers.equal_range( aThisHandlersPropertie.Name );
+                    m_aDependencyHandlers.erase( aDepHandlers.first, aDepHandlers.second );
+                }
+
+                // determine the superseded properties
+                StlSyntaxSequence< OUString > aSupersededByThisHandler( (*aHandler)->getSupersededProperties() );
+                for (const auto & superseded : aSupersededByThisHandler)
+                {
+                    std::vector< Property >::iterator existent = std::find_if(
+                        aProperties.begin(),
+                        aProperties.end(),
+                        FindPropertyByName( superseded )
+                    );
+                    if ( existent != aProperties.end() )
+                        // one of the properties superseded by this handler was supported by a previous
+                        // one -> erase
+                        aProperties.erase( existent );
+                }
+
+                // be notified of changes which this handler is responsible for
+                (*aHandler)->addPropertyChangeListener( this );
+
+                // remember this handler for every of the properties which it is responsible
+                // for
+                for (const auto & aThisHandlersPropertie : aThisHandlersProperties)
+                {
+                    m_aPropertyHandlers[ aThisHandlersPropertie.Name ] = *aHandler;
+                    // note that this implies that if two handlers support the same property,
+                    // the latter wins
+                }
+
+                // see if the handler expresses interest in any actuating properties
+                StlSyntaxSequence< OUString > aInterestingActuations( (*aHandler)->getActuatingProperties() );
+                for (const auto & aInterestingActuation : aInterestingActuations)
+                {
+                    m_aDependencyHandlers.emplace( aInterestingActuation, *aHandler );
+                }
+
+                ++aHandler;
+            }
+
+            // create a new composer for UI requests coming from the handlers
+            m_pUIRequestComposer.reset( new ComposedPropertyUIUpdate( getInspectorUI(), this ) );
+
+            // sort the properties by relative position, as indicated by the model
+            sal_Int32 nPos = 0;
+            for (auto const& sourceProps : aProperties)
+            {
+                sal_Int32 nRelativePropertyOrder = nPos;
+                if ( m_xModel.is() )
+                    nRelativePropertyOrder = m_xModel->getPropertyOrderIndex( sourceProps.Name );
+                m_aProperties.emplace(nRelativePropertyOrder, sourceProps);
+                ++nPos;
+            }
+
+            // be notified when one of our inspectees dies
+            impl_toggleInspecteeListening_nothrow( true );
+        }
+        catch(const Exception&)
+        {
+            OSL_FAIL("OPropertyBrowserController::doInspection : caught an exception !");
+        }
+    }
+
+
+    css::awt::Size SAL_CALL OPropertyBrowserController::getMinimumSize()
+    {
+        css::awt::Size aSize;
+        if( m_xPropView )
+            return m_xPropView->getMinimumSize();
+        else
+            return aSize;
+    }
+
+
+    css::awt::Size SAL_CALL OPropertyBrowserController::getPreferredSize()
+    {
+        return getMinimumSize();
+    }
+
+
+    css::awt::Size SAL_CALL OPropertyBrowserController::calcAdjustedSize( const css::awt::Size& _rNewSize )
+    {
+        awt::Size aMinSize = getMinimumSize( );
+        awt::Size aAdjustedSize( _rNewSize );
+        if ( aAdjustedSize.Width < aMinSize.Width )
+            aAdjustedSize.Width = aMinSize.Width;
+        if ( aAdjustedSize.Height < aMinSize.Height )
+            aAdjustedSize.Height = aMinSize.Height;
+        return aAdjustedSize;
+    }
+
+
+    void OPropertyBrowserController::describePropertyLine( const Property& _rProperty, OLineDescriptor& _rDescriptor )
+    {
+        try
+        {
+            PropertyHandlerRepository::const_iterator handler = m_aPropertyHandlers.find( _rProperty.Name );
+            if ( handler == m_aPropertyHandlers.end() )
+                throw RuntimeException();   // caught below
+
+            _rDescriptor.assignFrom( handler->second->describePropertyLine( _rProperty.Name, this ) );
+
+
+            _rDescriptor.xPropertyHandler = handler->second;
+            _rDescriptor.sName = _rProperty.Name;
+            _rDescriptor.aValue = _rDescriptor.xPropertyHandler->getPropertyValue( _rProperty.Name );
+
+            if ( _rDescriptor.DisplayName.isEmpty() )
+            {
+            #ifdef DBG_UTIL
+                SAL_WARN( "extensions.propctrlr", "OPropertyBrowserController::describePropertyLine: handler did not provide a display name for '"
+                        <<_rProperty.Name << "'!" );
+            #endif
+                _rDescriptor.DisplayName = _rProperty.Name;
+            }
+
+            PropertyState   ePropertyState( _rDescriptor.xPropertyHandler->getPropertyState( _rProperty.Name ) );
+            if ( PropertyState_AMBIGUOUS_VALUE == ePropertyState )
+            {
+                _rDescriptor.bUnknownValue = true;
+                _rDescriptor.aValue.clear();
+            }
+
+            _rDescriptor.bReadOnly = impl_isReadOnlyModel_throw();
+        }
+        catch( const Exception& )
+        {
+            TOOLS_WARN_EXCEPTION( "extensions.propctrlr", "OPropertyBrowserController::describePropertyLine" );
+        }
+    }
+
+
+    void OPropertyBrowserController::impl_buildCategories_throw()
+    {
+        OSL_PRECOND( m_aPageIds.empty(), "OPropertyBrowserController::impl_buildCategories_throw: duplicate call!" );
+
+        StlSyntaxSequence< PropertyCategoryDescriptor > aCategories;
+        if ( m_xModel.is() )
+            aCategories = StlSyntaxSequence< PropertyCategoryDescriptor >(m_xModel->describeCategories());
+
+        for (auto const& category : aCategories)
+        {
+            OSL_ENSURE( m_aPageIds.find( category.ProgrammaticName ) == m_aPageIds.end(),
+                "OPropertyBrowserController::impl_buildCategories_throw: duplicate programmatic name!" );
+
+            m_aPageIds[ category.ProgrammaticName ] =
+                getPropertyBox().AppendPage( category.UIName, HelpIdUrl::getHelpId( category.HelpURL ) );
+        }
+    }
+
+
+    void OPropertyBrowserController::UpdateUI()
+    {
+        try
+        {
+            if ( !haveView() )
+                // too early, will return later
+                return;
+
+            // create our tab pages
+            impl_buildCategories_throw();
+            // (and allow for pages to be actually unused)
+            std::set< sal_uInt16 > aUsedPages;
+
+            // when building the UI below, remember which properties are actuating,
+            // to allow for an initial actuatingPropertyChanged call
+            std::vector< OUString > aActuatingProperties;
+            std::vector< Any > aActuatingPropertyValues;
+
+            // ask the handlers to describe the property UI, and insert the resulting
+            // entries into our list boxes
+            for (auto const& property : m_aProperties)
+            {
+                OLineDescriptor aDescriptor;
+                describePropertyLine( property.second, aDescriptor );
+
+                bool bIsActuatingProperty = impl_isActuatingProperty_nothrow( property.second.Name );
+
+                SAL_WARN_IF( aDescriptor.Category.isEmpty(), "extensions.propctrlr",
+                        "OPropertyBrowserController::UpdateUI: empty category provided for property '"
+                        << property.second.Name << "'!");
+                // finally insert this property control
+                sal_uInt16 nTargetPageId = impl_getPageIdForCategory_nothrow( aDescriptor.Category );
+                if ( nTargetPageId == sal_uInt16(-1) )
+                {
+                    // this category does not yet exist. This is allowed, as an inspector model might be lazy, and not provide
+                    // any category information of its own. In this case, we have a fallback ...
+                    m_aPageIds[ aDescriptor.Category ] =
+                        getPropertyBox().AppendPage( aDescriptor.Category, OString() );
+                    nTargetPageId = impl_getPageIdForCategory_nothrow( aDescriptor.Category );
+                }
+
+                getPropertyBox().InsertEntry( aDescriptor, nTargetPageId );
+                aUsedPages.insert( nTargetPageId );
+
+                // if it's an actuating property, remember it
+                if ( bIsActuatingProperty )
+                {
+                    aActuatingProperties.push_back( property.second.Name );
+                    aActuatingPropertyValues.push_back( impl_getPropertyValue_throw( property.second.Name ) );
+                }
+            }
+
+            // update any dependencies for the actuating properties which we encountered
+            {
+                std::vector< Any >::const_iterator aPropertyValue = aActuatingPropertyValues.begin();
+                for (auto const& actuatingProperty : aActuatingProperties)
+                {
+                    impl_broadcastPropertyChange_nothrow( actuatingProperty, *aPropertyValue, *aPropertyValue, true );
+                    ++aPropertyValue;
+                }
+            }
+
+            // remove any unused pages (which we did not encounter properties for)
+            HashString2Int16 aSurvivingPageIds;
+            for (auto const& pageId : m_aPageIds)
+            {
+                if ( aUsedPages.find( pageId.second ) == aUsedPages.end() )
+                    getPropertyBox().RemovePage( pageId.second );
+                else
+                    aSurvivingPageIds.insert(pageId);
+            }
+            m_aPageIds.swap( aSurvivingPageIds );
+
+            getPropertyBox().Show();
+
+            // activate the first page
+            if ( !m_aPageIds.empty() )
+            {
+                Sequence< PropertyCategoryDescriptor > aCategories( m_xModel->describeCategories() );
+                if ( aCategories.hasElements() )
+                    m_xPropView->activatePage( m_aPageIds[ aCategories[0].ProgrammaticName ] );
+                else
+                    // allowed: if we default-created the pages ...
+                    m_xPropView->activatePage( m_aPageIds.begin()->second );
+            }
+
+            // activate the previously active page (if possible)
+            if ( !m_sLastValidPageSelection.isEmpty() )
+                m_sPageSelection = m_sLastValidPageSelection;
+            selectPageFromViewData();
+        }
+        catch( const Exception& )
+        {
+            DBG_UNHANDLED_EXCEPTION("extensions.propctrlr");
+        }
+    }
+
+
+    void OPropertyBrowserController::Clicked( const OUString& _rName, bool _bPrimary )
+    {
+        try
+        {
+            // since the browse buttons do not get the focus when clicked with the mouse,
+            // we need to commit the changes in the current property field
+            getPropertyBox().CommitModified();
+
+            PropertyHandlerRepository::const_iterator handler = m_aPropertyHandlers.find( _rName );
+            DBG_ASSERT( handler != m_aPropertyHandlers.end(), "OPropertyBrowserController::Clicked: a property without handler? This will crash!" );
+
+            ComposedUIAutoFireGuard aAutoFireGuard( *m_pUIRequestComposer );
+
+            Any aData;
+            m_xInteractiveHandler = handler->second;
+            InteractiveSelectionResult eResult =
+                handler->second->onInteractivePropertySelection( _rName, _bPrimary, aData,
+                    m_pUIRequestComposer->getUIForPropertyHandler( handler->second ) );
+
+            switch ( eResult )
+            {
+            case InteractiveSelectionResult_Cancelled:
+            case InteractiveSelectionResult_Success:
+                // okay, nothing to do
+                break;
+            case InteractiveSelectionResult_ObtainedValue:
+                handler->second->setPropertyValue( _rName, aData );
+                break;
+            case InteractiveSelectionResult_Pending:
+                // also okay, we expect that the handler has disabled the UI as necessary
+                break;
+            default:
+                OSL_FAIL( "OPropertyBrowserController::Clicked: unknown result value!" );
+                break;
+            }
+        }
+        catch (const Exception&)
+        {
+            DBG_UNHANDLED_EXCEPTION("extensions.propctrlr");
+        }
+        m_xInteractiveHandler = nullptr;
+    }
+
+
+    bool OPropertyBrowserController::hasPropertyByName( const OUString& _rName )
+    {
+        for (auto const& property : m_aProperties)
+            if ( property.second.Name == _rName )
+                return true;
+        return false;
+    }
+
+
+    void OPropertyBrowserController::Commit( const OUString& rName, const Any& _rValue )
+    {
+        try
+        {
+            OUString sPlcHolder = PcrRes(RID_EMBED_IMAGE_PLACEHOLDER);
+            bool bIsPlaceHolderValue = false;
+
+            if ( rName == PROPERTY_IMAGE_URL )
+            {
+                // if the prop value is the PlaceHolder
+                // can ignore it
+                OUString sVal;
+                _rValue >>= sVal;
+                if ( sVal == sPlcHolder )
+                    bIsPlaceHolderValue = true;
+            }
+            m_sCommittingProperty = rName;
+
+            bool bIsActuatingProperty = impl_isActuatingProperty_nothrow( rName );
+
+            Any aOldValue;
+            if ( bIsActuatingProperty )
+                aOldValue = impl_getPropertyValue_throw( rName );
+
+            // do we have a dedicated handler for this property, which we can delegate some tasks to?
+            PropertyHandlerRef handler = impl_getHandlerForProperty_throw( rName );
+
+
+            // set the value ( only if it's not a placeholder )
+            if ( !bIsPlaceHolderValue )
+                handler->setPropertyValue( rName, _rValue );
+
+
+            // re-retrieve the value
+            Any aNormalizedValue = handler->getPropertyValue( rName );
+
+            // care for any inter-property dependencies
+            if ( bIsActuatingProperty )
+                impl_broadcastPropertyChange_nothrow( rName, aNormalizedValue, aOldValue, false );
+
+            // and display it again. This ensures proper formatting
+            getPropertyBox().SetPropertyValue( rName, aNormalizedValue, false );
+        }
+        catch(const PropertyVetoException& eVetoException)
+        {
+            std::unique_ptr<weld::MessageDialog> xInfoBox(Application::CreateMessageDialog(m_xPropView->getPropertyBox().getWidget(),
+                                                          VclMessageType::Info, VclButtonsType::Ok,
+                                                          eVetoException.Message));
+            xInfoBox->run();
+            PropertyHandlerRef handler = impl_getHandlerForProperty_throw( rName );
+            Any aNormalizedValue = handler->getPropertyValue( rName );
+            getPropertyBox().SetPropertyValue( rName, aNormalizedValue, false );
+        }
+        catch(const Exception&)
+        {
+            OSL_FAIL("OPropertyBrowserController::Commit : caught an exception !");
+        }
+
+        m_sCommittingProperty.clear();
+    }
+
+
+    void OPropertyBrowserController::focusGained( const Reference< XPropertyControl >& Control )
+    {
+        m_aControlObservers.notifyEach( &XPropertyControlObserver::focusGained, Control );
+    }
+
+
+    void OPropertyBrowserController::valueChanged( const Reference< XPropertyControl >& Control )
+    {
+        m_aControlObservers.notifyEach( &XPropertyControlObserver::valueChanged, Control );
+    }
+
+
+    namespace
+    {
+        Reference< XPropertyHandler > lcl_createHandler( const Reference<XComponentContext>& _rContext, const Any& _rFactoryDescriptor )
+        {
+            Reference< XPropertyHandler > xHandler;
+
+            OUString sServiceName;
+            Reference< XSingleServiceFactory > xServiceFac;
+            Reference< XSingleComponentFactory > xComponentFac;
+
+            if ( _rFactoryDescriptor >>= sServiceName )
+                xHandler.set( _rContext->getServiceManager()->createInstanceWithContext( sServiceName, _rContext ), UNO_QUERY );
+            else if ( _rFactoryDescriptor >>= xServiceFac )
+                xHandler.set(xServiceFac->createInstance(), css::uno::UNO_QUERY);
+            else if ( _rFactoryDescriptor >>= xComponentFac )
+                xHandler.set(xComponentFac->createInstanceWithContext( _rContext ), css::uno::UNO_QUERY);
+            OSL_ENSURE(xHandler.is(),"lcl_createHandler: Can not create handler");
+            return xHandler;
+        }
+    }
+
+
+    void OPropertyBrowserController::getPropertyHandlers( const InterfaceArray& _rObjects, PropertyHandlerArray& _rHandlers )
+    {
+        _rHandlers.resize( 0 );
+        if ( _rObjects.empty() )
+            return;
+
+        Sequence< Any > aHandlerFactories;
+        if ( m_xModel.is() )
+            aHandlerFactories = m_xModel->getHandlerFactories();
+
+        for ( auto const & handlerFactory : std::as_const(aHandlerFactories) )
+        {
+            if ( _rObjects.size() == 1 )
+            {   // we're inspecting only one object -> one handler
+                Reference< XPropertyHandler > xHandler( lcl_createHandler( m_xContext, handlerFactory ) );
+                if ( xHandler.is() )
+                {
+                    xHandler->inspect( _rObjects[0] );
+                    _rHandlers.push_back( xHandler );
+                }
+            }
+            else
+            {
+                // create a single handler for every single object
+                std::vector< Reference< XPropertyHandler > > aSingleHandlers( _rObjects.size() );
+                std::vector< Reference< XPropertyHandler > >::iterator pHandler = aSingleHandlers.begin();
+
+                for (auto const& elem : _rObjects)
+                {
+                    *pHandler = lcl_createHandler( m_xContext, handlerFactory );
+                    if ( pHandler->is() )
+                    {
+                        (*pHandler)->inspect(elem);
+                        ++pHandler;
+                    }
+                }
+                aSingleHandlers.resize( pHandler - aSingleHandlers.begin() );
+
+                // then create a handler which composes information out of those single handlers
+                if ( !aSingleHandlers.empty() )
+                    _rHandlers.push_back( new PropertyComposer( aSingleHandlers ) );
+            }
+        }
+
+        // note that the handlers will not be used by our caller, if they indicate that there are no
+        // properties they feel responsible for
+    }
+
+
+    bool OPropertyBrowserController::impl_findObjectProperty_nothrow( const OUString& _rName, OrderedPropertyMap::const_iterator* _pProperty )
+    {
+        OrderedPropertyMap::const_iterator search = std::find_if(m_aProperties.begin(), m_aProperties.end(),
+            [&_rName](const OrderedPropertyMap::value_type& rEntry) { return rEntry.second.Name == _rName; });
+        if ( _pProperty )
+            *_pProperty = search;
+        return ( search != m_aProperties.end() );
+    }
+
+
+    void OPropertyBrowserController::rebuildPropertyUI( const OUString& _rPropertyName )
+    {
+        ::osl::MutexGuard aGuard( m_aMutex );
+        if ( !haveView() )
+            throw RuntimeException();
+
+        OrderedPropertyMap::const_iterator propertyPos;
+        if ( !impl_findObjectProperty_nothrow( _rPropertyName, &propertyPos ) )
+            return;
+
+        OLineDescriptor aDescriptor;
+        try
+        {
+            describePropertyLine( propertyPos->second, aDescriptor );
+        }
+        catch( const Exception& )
+        {
+            TOOLS_WARN_EXCEPTION( "extensions.propctrlr", "OPropertyBrowserController::rebuildPropertyUI" );
+        }
+
+        getPropertyBox().ChangeEntry( aDescriptor );
+   }
+
+
+    void OPropertyBrowserController::enablePropertyUI( const OUString& _rPropertyName, sal_Bool _bEnable )
+    {
+        ::osl::MutexGuard aGuard( m_aMutex );
+        if ( !haveView() )
+            throw RuntimeException();
+
+        if ( !impl_findObjectProperty_nothrow( _rPropertyName ) )
+            return;
+
+        getPropertyBox().EnablePropertyLine( _rPropertyName, _bEnable );
+    }
+
+
+    void OPropertyBrowserController::enablePropertyUIElements( const OUString& _rPropertyName, sal_Int16 _nElements, sal_Bool _bEnable )
+    {
+        ::osl::MutexGuard aGuard( m_aMutex );
+        if ( !haveView() )
+            throw RuntimeException();
+
+        if ( !impl_findObjectProperty_nothrow( _rPropertyName ) )
+            return;
+
+        getPropertyBox().EnablePropertyControls( _rPropertyName, _nElements, _bEnable );
+    }
+
+
+    void OPropertyBrowserController::showPropertyUI( const OUString& _rPropertyName )
+    {
+        ::osl::MutexGuard aGuard( m_aMutex );
+        if ( !haveView() )
+            throw RuntimeException();
+
+        // look up the property in our object properties
+        OrderedPropertyMap::const_iterator propertyPos;
+        if ( !impl_findObjectProperty_nothrow( _rPropertyName, &propertyPos ) )
+            return;
+
+        if ( getPropertyBox().GetPropertyPos( _rPropertyName ) != EDITOR_LIST_ENTRY_NOTFOUND )
+        {
+            rebuildPropertyUI( _rPropertyName );
+            return;
+        }
+
+        OLineDescriptor aDescriptor;
+        describePropertyLine( propertyPos->second, aDescriptor );
+
+        // look for the position to insert the property
+
+        // side note: The methods GetPropertyPos and InsertEntry of the OPropertyEditor work
+        // only on the current page. This implies that it's impossible to use this method here
+        // to show property lines which are *not* on the current page.
+        // This is sufficient for now, but should be changed in the future.
+
+        // by definition, the properties in m_aProperties are in the order in which they appear in the UI
+        // So all we need is a predecessor of pProperty in m_aProperties
+        sal_uInt16 nUIPos = EDITOR_LIST_ENTRY_NOTFOUND;
+        do
+        {
+            if ( propertyPos != m_aProperties.begin() )
+                --propertyPos;
+            nUIPos = getPropertyBox().GetPropertyPos( propertyPos->second.Name );
+        }
+        while ( ( nUIPos == EDITOR_LIST_ENTRY_NOTFOUND ) && ( propertyPos != m_aProperties.begin() ) );
+
+        if ( nUIPos == EDITOR_LIST_ENTRY_NOTFOUND )
+            // insert at the very top
+            nUIPos = 0;
+        else
+            // insert right after the predecessor we found
+            ++nUIPos;
+
+        getPropertyBox().InsertEntry(
+            aDescriptor, impl_getPageIdForCategory_nothrow( aDescriptor.Category ), nUIPos );
+    }
+
+
+    void OPropertyBrowserController::hidePropertyUI( const OUString& _rPropertyName )
+    {
+        ::osl::MutexGuard aGuard( m_aMutex );
+        if ( !haveView() )
+            throw RuntimeException();
+
+        if ( !impl_findObjectProperty_nothrow( _rPropertyName ) )
+            return;
+
+        getPropertyBox().RemoveEntry( _rPropertyName );
+    }
+
+
+    void OPropertyBrowserController::showCategory( const OUString& rCategory, sal_Bool bShow )
+    {
+        ::osl::MutexGuard aGuard( m_aMutex );
+        if ( !haveView() )
+            throw RuntimeException();
+
+        sal_uInt16 nPageId = impl_getPageIdForCategory_nothrow( rCategory );
+        OSL_ENSURE( nPageId != sal_uInt16(-1), "OPropertyBrowserController::showCategory: invalid category!" );
+
+        getPropertyBox().ShowPropertyPage( nPageId, bShow );
+    }
+
+
+    Reference< XPropertyControl > SAL_CALL OPropertyBrowserController::getPropertyControl( const OUString& _rPropertyName )
+    {
+        ::osl::MutexGuard aGuard( m_aMutex );
+        if ( !haveView() )
+            throw RuntimeException();
+
+        Reference< XPropertyControl > xControl( getPropertyBox().GetPropertyControl( _rPropertyName ) );
+        return xControl;
+    }
+
+
+    void SAL_CALL OPropertyBrowserController::registerControlObserver( const Reference< XPropertyControlObserver >& Observer )
+    {
+        m_aControlObservers.addInterface( Observer );
+    }
+
+
+    void SAL_CALL OPropertyBrowserController::revokeControlObserver( const Reference< XPropertyControlObserver >& Observer )
+    {
+        m_aControlObservers.removeInterface( Observer );
+    }
+
+
+    void SAL_CALL OPropertyBrowserController::setHelpSectionText( const OUString& _rHelpText )
+    {
+        SolarMutexGuard aSolarGuard;
+        ::osl::MutexGuard aGuard( m_aMutex );
+
+        if ( !haveView() )
+            throw DisposedException();
+
+        if ( !getPropertyBox().HasHelpSection() )
+            throw NoSupportException();
+
+        getPropertyBox().SetHelpText( _rHelpText );
+    }
+
+
+    void OPropertyBrowserController::impl_broadcastPropertyChange_nothrow( const OUString& _rPropertyName, const Any& _rNewValue, const Any& _rOldValue, bool _bFirstTimeInit ) const
+    {
+        // are there one or more handlers which are interested in the actuation?
+        std::pair< PropertyHandlerMultiRepository::const_iterator, PropertyHandlerMultiRepository::const_iterator > aInterestedHandlers =
+            m_aDependencyHandlers.equal_range( _rPropertyName );
+        if ( aInterestedHandlers.first == aInterestedHandlers.second )
+            // none of our handlers is interested in this
+            return;
+
+        ComposedUIAutoFireGuard aAutoFireGuard( *m_pUIRequestComposer );
+        try
+        {
+            // collect the responses from all interested handlers
+            PropertyHandlerMultiRepository::const_iterator handler = aInterestedHandlers.first;
+            while ( handler != aInterestedHandlers.second )
+            {
+                handler->second->actuatingPropertyChanged( _rPropertyName, _rNewValue, _rOldValue,
+                    m_pUIRequestComposer->getUIForPropertyHandler( handler->second ),
+                    _bFirstTimeInit );
+                ++handler;
+            }
+        }
+        catch( const Exception& )
+        {
+            DBG_UNHANDLED_EXCEPTION("extensions.propctrlr");
+        }
+    }
+
+
+} // namespace pcr
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */