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|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include "EventMultiplexer.hxx"
#include "MutexOwner.hxx"
#include "ViewShellBase.hxx"
#include "drawdoc.hxx"
#include "DrawController.hxx"
#include "SlideSorterViewShell.hxx"
#include "framework/FrameworkHelper.hxx"
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/frame/XFrame.hpp>
#include <com/sun/star/lang/DisposedException.hpp>
#include <com/sun/star/drawing/framework/XConfigurationChangeListener.hpp>
#include <cppuhelper/weak.hxx>
#include <cppuhelper/compbase4.hxx>
#include <sfx2/viewfrm.hxx>
using namespace ::com::sun::star;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::drawing::framework;
using ::sd::framework::FrameworkHelper;
class SdDrawDocument;
namespace {
static const sal_Int32 ResourceActivationEvent = 0;
static const sal_Int32 ResourceDeactivationEvent = 1;
static const sal_Int32 ConfigurationUpdateEvent = 2;
}
namespace sd { namespace tools {
typedef cppu::WeakComponentImplHelper4<
::com::sun::star::beans::XPropertyChangeListener,
::com::sun::star::frame::XFrameActionListener,
::com::sun::star::view::XSelectionChangeListener,
::com::sun::star::drawing::framework::XConfigurationChangeListener
> EventMultiplexerImplementationInterfaceBase;
class EventMultiplexer::Implementation
: protected MutexOwner,
public EventMultiplexerImplementationInterfaceBase,
public SfxListener
{
public:
Implementation (ViewShellBase& rBase);
virtual ~Implementation (void);
void AddEventListener (
Link& rCallback,
EventMultiplexerEvent::EventId aEventTypes);
void RemoveEventListener (
Link& rCallback,
EventMultiplexerEvent::EventId aEventTypes);
void CallListeners (EventMultiplexerEvent& rEvent);
ViewShellBase& GetViewShellBase() const { return mrBase; }
//===== lang::XEventListener ==============================================
virtual void SAL_CALL
disposing (const ::com::sun::star::lang::EventObject& rEventObject)
throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
//===== beans::XPropertySetListener =======================================
virtual void SAL_CALL
propertyChange (
const com::sun::star::beans::PropertyChangeEvent& rEvent)
throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
//===== view::XSelectionChangeListener ====================================
virtual void SAL_CALL
selectionChanged (
const com::sun::star::lang::EventObject& rEvent)
throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
//===== frame::XFrameActionListener ======================================
/** For certain actions the listener connects to a new controller of the
frame it is listening to. This usually happens when the view shell
in the center pane is replaced by another view shell.
*/
virtual void SAL_CALL
frameAction (const ::com::sun::star::frame::FrameActionEvent& rEvent)
throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
//===== drawing::framework::XConfigurationChangeListener ==================
virtual void SAL_CALL
notifyConfigurationChange (
const ::com::sun::star::drawing::framework::ConfigurationChangeEvent& rEvent)
throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
virtual void SAL_CALL disposing (void) SAL_OVERRIDE;
protected:
virtual void Notify (
SfxBroadcaster& rBroadcaster,
const SfxHint& rHint) SAL_OVERRIDE;
private:
ViewShellBase& mrBase;
typedef ::std::pair<Link,EventMultiplexerEvent::EventId> ListenerDescriptor;
typedef ::std::vector<ListenerDescriptor> ListenerList;
ListenerList maListeners;
/// Remember whether we are listening to the UNO controller.
bool mbListeningToController;
/// Remember whether we are listening to the frame.
bool mbListeningToFrame;
::com::sun::star::uno::WeakReference<
::com::sun::star::frame::XController> mxControllerWeak;
::com::sun::star::uno::WeakReference<
::com::sun::star::frame::XFrame> mxFrameWeak;
::com::sun::star::uno::WeakReference<
::com::sun::star::view::XSelectionSupplier> mxSlideSorterSelectionWeak;
SdDrawDocument* mpDocument;
::com::sun::star::uno::WeakReference<
::com::sun::star::drawing::framework::XConfigurationController>
mxConfigurationControllerWeak;
void ReleaseListeners (void);
void ConnectToController (void);
void DisconnectFromController (void);
void CallListeners (
EventMultiplexerEvent::EventId eId,
void* pUserData = NULL);
/** This method throws a DisposedException when the object has already been
disposed.
*/
void ThrowIfDisposed (void)
throw (::com::sun::star::lang::DisposedException);
DECL_LINK(SlideSorterSelectionChangeListener, void*);
};
const char aCurrentPagePropertyName[] = "CurrentPage";
const char aEditModePropertyName[] = "IsMasterPageMode";
//===== EventMultiplexer ======================================================
EventMultiplexer::EventMultiplexer (ViewShellBase& rBase)
: mpImpl (new EventMultiplexer::Implementation(rBase))
{
mpImpl->acquire();
}
EventMultiplexer::~EventMultiplexer (void)
{
try
{
mpImpl->dispose();
// Now we call release twice. One decreases the use count of the
// implementation object (if all goes well to zero and thus deletes
// it.) The other releases the auto_ptr and prevents the
// implementation object from being deleted a second time.
mpImpl->release();
mpImpl.release();
}
catch (const RuntimeException&)
{
}
catch (const Exception&)
{
}
}
void EventMultiplexer::AddEventListener (
Link& rCallback,
EventMultiplexerEvent::EventId aEventTypes)
{
mpImpl->AddEventListener (rCallback, aEventTypes);
}
void EventMultiplexer::RemoveEventListener (
Link& rCallback,
EventMultiplexerEvent::EventId aEventTypes)
{
mpImpl->RemoveEventListener (rCallback, aEventTypes);
}
void EventMultiplexer::MultiplexEvent(
EventMultiplexerEvent::EventId eEventId,
void* pUserData )
{
EventMultiplexerEvent aEvent (mpImpl->GetViewShellBase(), eEventId, pUserData);
mpImpl->CallListeners(aEvent);
}
//===== EventMultiplexer::Implementation ======================================
EventMultiplexer::Implementation::Implementation (ViewShellBase& rBase)
: MutexOwner(),
EventMultiplexerImplementationInterfaceBase(maMutex),
SfxListener(),
mrBase (rBase),
mbListeningToController (false),
mbListeningToFrame (false),
mxControllerWeak(NULL),
mxFrameWeak(NULL),
mxSlideSorterSelectionWeak(NULL),
mpDocument(NULL),
mxConfigurationControllerWeak()
{
// Connect to the frame to listen for controllers being exchanged.
// Listen to changes of certain properties.
Reference<frame::XFrame> xFrame (
mrBase.GetFrame()->GetTopFrame().GetFrameInterface(),
uno::UNO_QUERY);
mxFrameWeak = xFrame;
if (xFrame.is())
{
xFrame->addFrameActionListener (
Reference<frame::XFrameActionListener>(
static_cast<XWeak*>(this), UNO_QUERY));
mbListeningToFrame = true;
}
// Connect to the current controller.
ConnectToController ();
// Listen for document changes.
mpDocument = mrBase.GetDocument();
if (mpDocument != NULL)
StartListening (*mpDocument);
// Listen for configuration changes.
Reference<XControllerManager> xControllerManager (
Reference<XWeak>(&mrBase.GetDrawController()), UNO_QUERY);
if (xControllerManager.is())
{
Reference<XConfigurationController> xConfigurationController (
xControllerManager->getConfigurationController());
mxConfigurationControllerWeak = xConfigurationController;
if (xConfigurationController.is())
{
Reference<XComponent> xComponent (xConfigurationController, UNO_QUERY);
if (xComponent.is())
xComponent->addEventListener(static_cast<beans::XPropertyChangeListener*>(this));
xConfigurationController->addConfigurationChangeListener(
this,
FrameworkHelper::msResourceActivationEvent,
makeAny(ResourceActivationEvent));
xConfigurationController->addConfigurationChangeListener(
this,
FrameworkHelper::msResourceDeactivationEvent,
makeAny(ResourceDeactivationEvent));
xConfigurationController->addConfigurationChangeListener(
this,
FrameworkHelper::msConfigurationUpdateEndEvent,
makeAny(ConfigurationUpdateEvent));
}
}
}
EventMultiplexer::Implementation::~Implementation (void)
{
DBG_ASSERT( !mbListeningToFrame,
"sd::EventMultiplexer::Implementation::~Implementation(), disposing was not called!" );
}
void EventMultiplexer::Implementation::ReleaseListeners (void)
{
if (mbListeningToFrame)
{
mbListeningToFrame = false;
// Stop listening for changes of certain properties.
Reference<frame::XFrame> xFrame (mxFrameWeak);
if (xFrame.is())
{
xFrame->removeFrameActionListener (
Reference<frame::XFrameActionListener>(
static_cast<XWeak*>(this), UNO_QUERY));
}
}
DisconnectFromController ();
if (mpDocument != NULL)
{
EndListening (*mpDocument);
mpDocument = NULL;
}
// Stop listening for configuration changes.
Reference<XConfigurationController> xConfigurationController (mxConfigurationControllerWeak);
if (xConfigurationController.is())
{
Reference<XComponent> xComponent (xConfigurationController, UNO_QUERY);
if (xComponent.is())
xComponent->removeEventListener(static_cast<beans::XPropertyChangeListener*>(this));
xConfigurationController->removeConfigurationChangeListener(this);
}
}
void EventMultiplexer::Implementation::AddEventListener (
Link& rCallback,
EventMultiplexerEvent::EventId aEventTypes)
{
ListenerList::iterator iListener (maListeners.begin());
ListenerList::const_iterator iEnd (maListeners.end());
for (;iListener!=iEnd; ++iListener)
if (iListener->first == rCallback)
break;
if (iListener != maListeners.end())
{
// Listener exists. Update its event type set.
iListener->second |= aEventTypes;
}
else
{
maListeners.push_back (ListenerDescriptor(rCallback,aEventTypes));
}
}
void EventMultiplexer::Implementation::RemoveEventListener (
Link& rCallback,
EventMultiplexerEvent::EventId aEventTypes)
{
ListenerList::iterator iListener (maListeners.begin());
ListenerList::const_iterator iEnd (maListeners.end());
for (;iListener!=iEnd; ++iListener)
if (iListener->first == rCallback)
break;
if (iListener != maListeners.end())
{
// Update the event type set.
iListener->second &= ~aEventTypes;
// When no events remain in the set then remove the listener.
if (iListener->second == EID_EMPTY_SET)
maListeners.erase (iListener);
}
}
void EventMultiplexer::Implementation::ConnectToController (void)
{
// Just in case that we missed some event we now disconnect from the old
// controller.
DisconnectFromController ();
// Register at the controller of the main view shell.
// We have to store a (weak) reference to the controller so that we can
// unregister without having to ask the mrBase member (which at that
// time may be destroyed.)
Reference<frame::XController> xController = mrBase.GetController();
mxControllerWeak = mrBase.GetController();
try
{
// Listen for disposing events.
Reference<lang::XComponent> xComponent (xController, UNO_QUERY);
if (xComponent.is())
{
xComponent->addEventListener (
Reference<lang::XEventListener>(
static_cast<XWeak*>(this), UNO_QUERY));
mbListeningToController = true;
}
// Listen to changes of certain properties.
Reference<beans::XPropertySet> xSet (xController, UNO_QUERY);
if (xSet.is())
{
try
{
xSet->addPropertyChangeListener(OUString(aCurrentPagePropertyName), this);
}
catch (const beans::UnknownPropertyException&)
{
OSL_TRACE("EventMultiplexer::ConnectToController: CurrentPage unknown");
}
try
{
xSet->addPropertyChangeListener(OUString(aEditModePropertyName), this);
}
catch (const beans::UnknownPropertyException&)
{
OSL_TRACE("EventMultiplexer::ConnectToController: IsMasterPageMode unknown");
}
}
// Listen for selection change events.
Reference<view::XSelectionSupplier> xSelection (xController, UNO_QUERY);
if (xSelection.is())
{
xSelection->addSelectionChangeListener(this);
}
}
catch (const lang::DisposedException&)
{
mbListeningToController = false;
}
}
void EventMultiplexer::Implementation::DisconnectFromController (void)
{
if (mbListeningToController)
{
mbListeningToController = false;
Reference<frame::XController> xController = mxControllerWeak;
Reference<beans::XPropertySet> xSet (xController, UNO_QUERY);
// Remove the property listener.
if (xSet.is())
{
try
{
xSet->removePropertyChangeListener(OUString(aCurrentPagePropertyName), this);
}
catch (const beans::UnknownPropertyException&)
{
OSL_TRACE ("DisconnectFromController: CurrentPage unknown");
}
try
{
xSet->removePropertyChangeListener(OUString(aEditModePropertyName), this);
}
catch (const beans::UnknownPropertyException&)
{
OSL_TRACE ("DisconnectFromController: IsMasterPageMode unknown");
}
}
// Remove selection change listener.
Reference<view::XSelectionSupplier> xSelection (xController, UNO_QUERY);
if (xSelection.is())
{
xSelection->removeSelectionChangeListener(this);
}
// Remove listener for disposing events.
Reference<lang::XComponent> xComponent (xController, UNO_QUERY);
if (xComponent.is())
{
xComponent->removeEventListener (
Reference<lang::XEventListener>(static_cast<XWeak*>(this), UNO_QUERY));
}
}
}
//===== lang::XEventListener ================================================
void SAL_CALL EventMultiplexer::Implementation::disposing (
const lang::EventObject& rEventObject)
throw (RuntimeException, std::exception)
{
if (mbListeningToController)
{
Reference<frame::XController> xController (mxControllerWeak);
if (rEventObject.Source == xController)
{
mbListeningToController = false;
}
}
Reference<XConfigurationController> xConfigurationController (
mxConfigurationControllerWeak);
if (xConfigurationController.is()
&& rEventObject.Source == xConfigurationController)
{
mxConfigurationControllerWeak.clear();
}
}
//===== beans::XPropertySetListener =========================================
void SAL_CALL EventMultiplexer::Implementation::propertyChange (
const beans::PropertyChangeEvent& rEvent)
throw (RuntimeException, std::exception)
{
ThrowIfDisposed();
if ( rEvent.PropertyName == aCurrentPagePropertyName )
{
CallListeners(EventMultiplexerEvent::EID_CURRENT_PAGE);
}
else if ( rEvent.PropertyName == aEditModePropertyName )
{
bool bIsMasterPageMode (false);
rEvent.NewValue >>= bIsMasterPageMode;
if (bIsMasterPageMode)
CallListeners(EventMultiplexerEvent::EID_EDIT_MODE_MASTER);
else
CallListeners(EventMultiplexerEvent::EID_EDIT_MODE_NORMAL);
}
}
//===== frame::XFrameActionListener ==========================================
void SAL_CALL EventMultiplexer::Implementation::frameAction (
const frame::FrameActionEvent& rEvent)
throw (::com::sun::star::uno::RuntimeException, std::exception)
{
Reference<frame::XFrame> xFrame (mxFrameWeak);
if (rEvent.Frame == xFrame)
switch (rEvent.Action)
{
case frame::FrameAction_COMPONENT_DETACHING:
DisconnectFromController();
CallListeners (EventMultiplexerEvent::EID_CONTROLLER_DETACHED);
break;
case frame::FrameAction_COMPONENT_REATTACHED:
CallListeners (EventMultiplexerEvent::EID_CONTROLLER_DETACHED);
DisconnectFromController();
ConnectToController();
CallListeners (EventMultiplexerEvent::EID_CONTROLLER_ATTACHED);
break;
case frame::FrameAction_COMPONENT_ATTACHED:
ConnectToController();
CallListeners (EventMultiplexerEvent::EID_CONTROLLER_ATTACHED);
break;
default:
break;
}
}
//===== view::XSelectionChangeListener ========================================
void SAL_CALL EventMultiplexer::Implementation::selectionChanged (
const lang::EventObject& )
throw (::com::sun::star::uno::RuntimeException, std::exception)
{
CallListeners (EventMultiplexerEvent::EID_EDIT_VIEW_SELECTION);
}
//===== drawing::framework::XConfigurationChangeListener ==================
void SAL_CALL EventMultiplexer::Implementation::notifyConfigurationChange (
const ConfigurationChangeEvent& rEvent)
throw (RuntimeException, std::exception)
{
sal_Int32 nEventType = 0;
rEvent.UserData >>= nEventType;
switch (nEventType)
{
case ResourceActivationEvent:
if (rEvent.ResourceId->getResourceURL().match(FrameworkHelper::msViewURLPrefix))
{
CallListeners (EventMultiplexerEvent::EID_VIEW_ADDED);
if (rEvent.ResourceId->isBoundToURL(
FrameworkHelper::msCenterPaneURL, AnchorBindingMode_DIRECT))
{
CallListeners (EventMultiplexerEvent::EID_MAIN_VIEW_ADDED);
}
// Add selection change listener at slide sorter.
if (rEvent.ResourceId->getResourceURL().equals(FrameworkHelper::msSlideSorterURL))
{
slidesorter::SlideSorterViewShell* pViewShell
= dynamic_cast<slidesorter::SlideSorterViewShell*>(
FrameworkHelper::GetViewShell(
Reference<XView>(rEvent.ResourceObject,UNO_QUERY)).get());
if (pViewShell != NULL)
pViewShell->AddSelectionChangeListener (
LINK(this,
EventMultiplexer::Implementation,
SlideSorterSelectionChangeListener));
}
}
break;
case ResourceDeactivationEvent:
if (rEvent.ResourceId->getResourceURL().match(FrameworkHelper::msViewURLPrefix))
{
CallListeners (EventMultiplexerEvent::EID_VIEW_REMOVED);
if (rEvent.ResourceId->isBoundToURL(
FrameworkHelper::msCenterPaneURL, AnchorBindingMode_DIRECT))
{
CallListeners (EventMultiplexerEvent::EID_MAIN_VIEW_REMOVED);
}
// Remove selection change listener from slide sorter. Add
// selection change listener at slide sorter.
if (rEvent.ResourceId->getResourceURL().equals(FrameworkHelper::msSlideSorterURL))
{
slidesorter::SlideSorterViewShell* pViewShell
= dynamic_cast<slidesorter::SlideSorterViewShell*>(
FrameworkHelper::GetViewShell(
Reference<XView>(rEvent.ResourceObject, UNO_QUERY)).get());
if (pViewShell != NULL)
pViewShell->RemoveSelectionChangeListener (
LINK(this,
EventMultiplexer::Implementation,
SlideSorterSelectionChangeListener));
}
}
break;
case ConfigurationUpdateEvent:
CallListeners (EventMultiplexerEvent::EID_CONFIGURATION_UPDATED);
break;
}
}
void SAL_CALL EventMultiplexer::Implementation::disposing (void)
{
CallListeners (EventMultiplexerEvent::EID_DISPOSING);
ReleaseListeners();
}
void EventMultiplexer::Implementation::ThrowIfDisposed (void)
throw (::com::sun::star::lang::DisposedException)
{
if (rBHelper.bDisposed || rBHelper.bInDispose)
{
throw lang::DisposedException (
"SlideSorterController object has already been disposed",
static_cast<uno::XWeak*>(this));
}
}
void EventMultiplexer::Implementation::Notify (
SfxBroadcaster&,
const SfxHint& rHint)
{
if (rHint.ISA(SdrHint))
{
SdrHint& rSdrHint (*PTR_CAST(SdrHint,&rHint));
switch (rSdrHint.GetKind())
{
case HINT_MODELCLEARED:
case HINT_PAGEORDERCHG:
CallListeners (EventMultiplexerEvent::EID_PAGE_ORDER);
break;
case HINT_SWITCHTOPAGE:
CallListeners (EventMultiplexerEvent::EID_CURRENT_PAGE);
break;
case HINT_OBJCHG:
CallListeners(EventMultiplexerEvent::EID_SHAPE_CHANGED,
const_cast<void*>(static_cast<const void*>(rSdrHint.GetPage())));
break;
case HINT_OBJINSERTED:
CallListeners(EventMultiplexerEvent::EID_SHAPE_INSERTED,
const_cast<void*>(static_cast<const void*>(rSdrHint.GetPage())));
break;
case HINT_OBJREMOVED:
CallListeners(EventMultiplexerEvent::EID_SHAPE_REMOVED,
const_cast<void*>(static_cast<const void*>(rSdrHint.GetPage())));
break;
default:
break;
}
}
else if (rHint.ISA(SfxSimpleHint))
{
SfxSimpleHint& rSimpleHint (*PTR_CAST(SfxSimpleHint, &rHint));
if (rSimpleHint.GetId() == SFX_HINT_DYING)
mpDocument = NULL;
}
}
void EventMultiplexer::Implementation::CallListeners (
EventMultiplexerEvent::EventId eId,
void* pUserData)
{
EventMultiplexerEvent aEvent (mrBase, eId, pUserData);
CallListeners(aEvent);
}
void EventMultiplexer::Implementation::CallListeners (EventMultiplexerEvent& rEvent)
{
ListenerList aCopyListeners( maListeners );
ListenerList::iterator iListener (aCopyListeners.begin());
ListenerList::const_iterator iListenerEnd (aCopyListeners.end());
for (; iListener!=iListenerEnd; ++iListener)
{
if ((iListener->second && rEvent.meEventId))
iListener->first.Call(&rEvent);
}
}
IMPL_LINK_NOARG(EventMultiplexer::Implementation, SlideSorterSelectionChangeListener)
{
CallListeners (EventMultiplexerEvent::EID_SLIDE_SORTER_SELECTION);
return 0;
}
//===== EventMultiplexerEvent =================================================
EventMultiplexerEvent::EventMultiplexerEvent (
const ViewShellBase& rBase,
EventId eEventId,
const void* pUserData)
: mrBase(rBase),
meEventId(eEventId),
mpUserData(pUserData)
{
}
} } // end of namespace ::sd::tools
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