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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef SD_FRAMEWORK_CONFIGURATION_CONTROLLER_BROADCASTER_HXX
#define SD_FRAMEWORK_CONFIGURATION_CONTROLLER_BROADCASTER_HXX
#include <com/sun/star/drawing/framework/XConfigurationChangeListener.hpp>
#include <com/sun/star/drawing/framework/XConfigurationController.hpp>
#include <com/sun/star/drawing/framework/ConfigurationChangeEvent.hpp>
#include <comphelper/stl_types.hxx>
#include <vector>
#include <hash_map>
namespace css = ::com::sun::star;
namespace sd { namespace framework {
/** This class manages the set of XConfigurationChangeListeners and
calls them when the ConfigurationController wants to broadcast an
event.
For every registered combination of listener and event type a user data
object is stored. This user data object is then given to the listener
whenever it is called for an event. With this the listener can use
a switch statement to handle different event types.
*/
class ConfigurationControllerBroadcaster
{
public:
/** The given controller is used as origin of thrown exceptions.
*/
ConfigurationControllerBroadcaster (
const css::uno::Reference<
css::drawing::framework::XConfigurationController>& rxController);
/** Add a listener for one type of event. When one listener is
interested in more than one event type this method has to be called
once for every event type. Alternatively it can register as
universal listener that will be called for all event types.
@param rxListener
A valid reference to a listener.
@param rsEventType
The type of event that the listener will be called for. The
empty string is a special value in that the listener will be
called for all event types.
@param rUserData
This object is passed to the listener whenever it is called for
the specified event type. For different event types different
user data objects can be provided.
@throws IllegalArgumentException
when an empty listener reference is given.
*/
void AddListener(
const css::uno::Reference<
css::drawing::framework::XConfigurationChangeListener>& rxListener,
const ::rtl::OUString& rsEventType,
const css::uno::Any& rUserData);
/** Remove all references to the given listener. When one listener has
been registered for more than one type of event then it is removed
for all of them.
@param rxListener
A valid reference to a listener.
@throws IllegalArgumentException
when an empty listener reference is given.
*/
void RemoveListener(
const css::uno::Reference<
css::drawing::framework::XConfigurationChangeListener>& rxListener);
/** Broadcast the given event to all listeners that have been registered
for its type of event as well as all universal listeners.
When calling a listener results in a DisposedException being thrown
the listener is unregistered automatically.
*/
void NotifyListeners (
const css::drawing::framework::ConfigurationChangeEvent& rEvent);
/** This convenience variant of NotifyListeners create the event from
the given arguments.
*/
void NotifyListeners (
const ::rtl::OUString& rsEventType,
const ::css::uno::Reference<css::drawing::framework::XResourceId>& rxResourceId,
const ::css::uno::Reference<css::drawing::framework::XResource>& rxResourceObject);
/** Call all listeners and inform them that the
ConfigurationController is being disposed. When this method returns
the list of registered listeners is empty. Further calls to
RemoveListener() are not necessary but do not result in an error.
*/
void DisposeAndClear (void);
private:
css::uno::Reference<
com::sun::star::drawing::framework::XConfigurationController> mxConfigurationController;
class ListenerDescriptor {public:
css::uno::Reference<
css::drawing::framework::XConfigurationChangeListener> mxListener;
css::uno::Any maUserData;
};
typedef ::std::vector<ListenerDescriptor> ListenerList;
typedef ::std::hash_map
<rtl::OUString,
ListenerList,
::comphelper::UStringHash,
::comphelper::UStringEqual> ListenerMap;
ListenerMap maListenerMap;
/** Broadcast the given event to all listeners in the given list.
When calling a listener results in a DisposedException being thrown
the listener is unregistered automatically.
*/
void NotifyListeners (
const ListenerList& rList,
const css::drawing::framework::ConfigurationChangeEvent& rEvent);
};
} } // end of namespace sd::framework
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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