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Diffstat (limited to 'sd/source/ui/framework/configuration/ConfigurationControllerBroadcaster.hxx')
-rw-r--r-- | sd/source/ui/framework/configuration/ConfigurationControllerBroadcaster.hxx | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/sd/source/ui/framework/configuration/ConfigurationControllerBroadcaster.hxx b/sd/source/ui/framework/configuration/ConfigurationControllerBroadcaster.hxx new file mode 100644 index 000000000000..a5939386d7b7 --- /dev/null +++ b/sd/source/ui/framework/configuration/ConfigurationControllerBroadcaster.hxx @@ -0,0 +1,151 @@ +/************************************************************************* + * + * 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 |