/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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 *************************************************************/

#include <vector>
#include <hash_map>

#include <com/sun/star/frame/XFrame.hpp>
#include <com/sun/star/frame/XStatusListener.hpp>
#include <com/sun/star/frame/XDispatch.hpp>

#include <rtl/ustring.hxx>
#include <cppuhelper/implbase1.hxx>


typedef std::vector < com::sun::star::uno::Reference < com::sun::star::frame::XStatusListener > > StatusListeners;

typedef std::hash_map < rtl::OUString,
                        StatusListeners,
                        rtl::OUStringHash,
                        std::equal_to< rtl::OUString > > ListenerMap;

// For every frame there is *one* Dispatch object for all possible commands
// this struct contains an array of listeners for every supported command
// these arrays are accessed by a hash_map (with the command string as index)
struct ListenerItem
{
	ListenerMap	aContainer;
	::com::sun::star::uno::Reference< com::sun::star::frame::XDispatch > xDispatch;
	::com::sun::star::uno::Reference< com::sun::star::frame::XFrame > xFrame;
};

typedef std::vector < ListenerItem > AllListeners;

class ListenerHelper
{
public:
	void AddListener(
		const com::sun::star::uno::Reference < com::sun::star::frame::XFrame >& xFrame,
		const com::sun::star::uno::Reference < com::sun::star::frame::XStatusListener > xControl,
		const ::rtl::OUString& aCommand );
	void RemoveListener(
		const com::sun::star::uno::Reference < com::sun::star::frame::XFrame >& xFrame,
		const com::sun::star::uno::Reference < com::sun::star::frame::XStatusListener > xControl,
		const ::rtl::OUString& aCommand );
	void Notify(
		const com::sun::star::uno::Reference < com::sun::star::frame::XFrame >& xFrame,
		const ::rtl::OUString& aCommand,
		com::sun::star::frame::FeatureStateEvent& rEvent );
	com::sun::star::uno::Reference < com::sun::star::frame::XDispatch > GetDispatch(
		const com::sun::star::uno::Reference < com::sun::star::frame::XFrame >& xFrame,
		const ::rtl::OUString& aCommand );
	void AddDispatch(
		const com::sun::star::uno::Reference < com::sun::star::frame::XDispatch > xDispatch,
		const com::sun::star::uno::Reference < com::sun::star::frame::XFrame >& xFrame,
		const ::rtl::OUString& aCommand );
};

class ListenerItemEventListener : public cppu::WeakImplHelper1 < ::com::sun::star::lang::XEventListener >
{
	::com::sun::star::uno::Reference< com::sun::star::frame::XFrame > mxFrame;
public:
	ListenerItemEventListener( const com::sun::star::uno::Reference < com::sun::star::frame::XFrame >& xFrame)
		: mxFrame(xFrame)
	{}
	virtual void SAL_CALL disposing( const com::sun::star::lang::EventObject& aEvent ) throw (com::sun::star::uno::RuntimeException);
};