216 lines
8.2 KiB
C++
216 lines
8.2 KiB
C++
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2008 by Sun Microsystems, Inc.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: confevents.hxx,v $
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* $Revision: 1.10 $
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#ifndef CONFIGMGR_API_EVENTS_HXX_
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#define CONFIGMGR_API_EVENTS_HXX_
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#include <hash_set>
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#include <map>
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#include <set>
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#include "osl/mutex.hxx"
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#include "rtl/ref.hxx"
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#include "salhelper/simplereferenceobject.hxx"
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#include "configpath.hxx"
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#include "utility.hxx"
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namespace rtl { class OUString; }
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namespace configmgr
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{
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class Change;
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struct TreeChangeList;
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class TreeManager;
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namespace configuration { class AbsolutePath; }
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struct IConfigListener : public salhelper::SimpleReferenceObject
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{
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virtual void disposing(TreeManager * pSource) = 0;
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};
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struct INodeListener : IConfigListener
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{
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virtual void nodeChanged(Change const& aChange, configuration::AbsolutePath const& aPath, TreeManager * pSource) = 0;
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virtual void nodeDeleted(configuration::AbsolutePath const& aPath, TreeManager * pSource) = 0;
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};
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namespace internal
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{
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////////////////////////////////////////////////////////////////////////
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template <class ListenerRef>
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class BroadcastImplHelper
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{
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public:
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osl::Mutex mutex;
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public:
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BroadcastImplHelper()
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{}
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~BroadcastImplHelper()
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{
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OSL_ENSURE(m_aInterfaces.empty(), "Configuration Broadcaster was not disposed properly");
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}
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public:
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typedef std::set<ListenerRef> Interfaces;
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public:
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typename Interfaces::iterator addListener(ListenerRef aListener)
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{
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return m_aInterfaces.insert(aListener).first;
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}
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void removeListener(ListenerRef aListener)
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{
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m_aInterfaces.erase(aListener);
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}
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void disposing(TreeManager * pSource);
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public:
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typename Interfaces::const_iterator begin() const { return m_aInterfaces.begin(); }
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typename Interfaces::const_iterator end() const { return m_aInterfaces.end(); }
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typename Interfaces::const_iterator find(ListenerRef aListener) const { return m_aInterfaces.find(aListener); }
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typename Interfaces::iterator findFull(ListenerRef aListener) { return m_aInterfaces.find(aListener); }
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private:
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Interfaces m_aInterfaces;
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// no implementation - not copyable
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BroadcastImplHelper(BroadcastImplHelper&);
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void operator=(BroadcastImplHelper&);
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};
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////////////////////////////////////////////////////////////////////////
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template <class Listener>
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void BroadcastImplHelper<Listener>::disposing(TreeManager * pSource)
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{
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osl::ClearableMutexGuard aGuard(this->mutex); // ensure that no notifications are running
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Interfaces aTargets;
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aTargets.swap(m_aInterfaces);
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aGuard.clear();
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for(typename Interfaces::iterator it = aTargets.begin(); it != aTargets.end(); )
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{
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typename Interfaces::iterator cur = it++;
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if (*cur)
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(*cur)->disposing(pSource);
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}
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}
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/////////////////////////////////////////////////////////////////////////
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class NodeListenerInfo
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{
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public:
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typedef std::hash_set<configuration::AbsolutePath, configuration::Path::Hash, configuration::Path::Equiv> Pathes;
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public:
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NodeListenerInfo(rtl::Reference<INodeListener> const& pListener)
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: m_pListener(pListener)
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{
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}
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// path handling
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Pathes const& pathList() const { return m_aPathes; }
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void addPath(configuration::AbsolutePath const& sPath) const { m_aPathes.insert(sPath); }
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void removePath(configuration::AbsolutePath const& sPath) const { m_aPathes.erase(sPath); }
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//void removeChildPathes(OUString const& sPath);
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// behave as pointer for use as a 'reference' class
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rtl::Reference<INodeListener> get() const { return m_pListener; }
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rtl::Reference<INodeListener> operator->() const { return get(); }
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INodeListener& operator*() const { return *m_pListener; }
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// needed to allow if (info) ...
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struct HasListener;
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operator HasListener const*() const { return reinterpret_cast<HasListener*>(m_pListener.get()); }
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bool operator < (NodeListenerInfo const& aInfo) const
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{ return std::less<INodeListener*>()(m_pListener.get(), aInfo.m_pListener.get()); }
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bool operator == (NodeListenerInfo const& aInfo) const
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{ return !!( m_pListener == aInfo.m_pListener); }
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bool operator > (NodeListenerInfo const& aInfo) const
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{ return aInfo.operator < (*this); }
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bool operator >= (NodeListenerInfo const& aInfo) const
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{ return !operator<(aInfo); }
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bool operator <= (NodeListenerInfo const& aInfo) const
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{ return !operator>(aInfo); }
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bool operator != (NodeListenerInfo const& aInfo) const
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{ return !operator==(aInfo); }
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private:
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rtl::Reference<INodeListener> m_pListener;
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mutable Pathes m_aPathes; // hack to be mutable even as set element
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};
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} // namespace
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/////////////////////////////////////////////////////////////////////////
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class ConfigChangeBroadcastHelper // broadcasts changes for a given set of options
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{
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public:
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ConfigChangeBroadcastHelper();
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~ConfigChangeBroadcastHelper();
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void broadcast(TreeChangeList const& anUpdate, sal_Bool bError, TreeManager * pSource);
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void addListener(configuration::AbsolutePath const& aName, rtl::Reference<INodeListener> const& );
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void removeListener(rtl::Reference<INodeListener> const&);
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void dispose(TreeManager * pSource);
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private:
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void add(configuration::AbsolutePath const& aPath, rtl::Reference<INodeListener> const& pListener);
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void remove(rtl::Reference<INodeListener> const& pListener);
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void dispatch(Change const& rBaseChange, configuration::AbsolutePath const& sChangeLocation, sal_Bool _bError, TreeManager * pSource);
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void dispatch(TreeChangeList const& rList_, sal_Bool _bError, TreeManager * pSource);
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void disposing(TreeManager * pSource);
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void dispatchInner(rtl::Reference<INodeListener> const& pTarget, configuration::AbsolutePath const& sTargetPath, Change const& rBaseChange, configuration::AbsolutePath const& sChangeLocation, sal_Bool _bError, TreeManager * pSource);
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void dispatchOuter(rtl::Reference<INodeListener> const& pTarget, configuration::AbsolutePath const& sTargetPath, Change const& rBaseChange, configuration::AbsolutePath const& sChangeLocation, sal_Bool _bError, TreeManager * pSource);
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typedef std::multimap<configuration::AbsolutePath, internal::BroadcastImplHelper<internal::NodeListenerInfo>::Interfaces::iterator, configuration::Path::Before> PathMap;
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internal::BroadcastImplHelper<internal::NodeListenerInfo> m_aListeners;
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PathMap m_aPathMap;
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};
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} // namespace
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#endif // CONFIGMGR_API_EVENTS_HXX_
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