/*************************************************************************
 *
 * 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.
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svtools.hxx"
#ifndef GCC
#endif

//_________________________________________________________________________________________________________________
//	includes
//_________________________________________________________________________________________________________________

#include <svtools/menuoptions.hxx>
#include <unotools/configmgr.hxx>
#include <unotools/configitem.hxx>
#include <tools/debug.hxx>
#include <com/sun/star/uno/Any.hxx>
#include <com/sun/star/uno/Sequence.hxx>
#include <vcl/svapp.hxx>

#include <rtl/logfile.hxx>
#include "itemholder2.hxx"

//_________________________________________________________________________________________________________________
//	namespaces
//_________________________________________________________________________________________________________________

using namespace ::utl					;
using namespace ::rtl					;
using namespace ::osl					;
using namespace ::com::sun::star::uno	;

//_________________________________________________________________________________________________________________
//	const
//_________________________________________________________________________________________________________________

#define	ROOTNODE_MENU							OUString(RTL_CONSTASCII_USTRINGPARAM("Office.Common/View/Menu"	))
#define	DEFAULT_DONTHIDEDISABLEDENTRIES			sal_False
#define	DEFAULT_FOLLOWMOUSE						sal_True
#define	DEFAULT_MENUICONS						2

#define	PROPERTYNAME_DONTHIDEDISABLEDENTRIES	OUString(RTL_CONSTASCII_USTRINGPARAM("DontHideDisabledEntry"	))
#define	PROPERTYNAME_FOLLOWMOUSE				OUString(RTL_CONSTASCII_USTRINGPARAM("FollowMouse"				))
#define PROPERTYNAME_SHOWICONSINMENUES          OUString(RTL_CONSTASCII_USTRINGPARAM("ShowIconsInMenues"        ))
#define PROPERTYNAME_SYSTEMICONSINMENUES        OUString(RTL_CONSTASCII_USTRINGPARAM("IsSystemIconsInMenus"     ))

#define	PROPERTYHANDLE_DONTHIDEDISABLEDENTRIES	0
#define	PROPERTYHANDLE_FOLLOWMOUSE				1
#define PROPERTYHANDLE_SHOWICONSINMENUES        2
#define PROPERTYHANDLE_SYSTEMICONSINMENUES      3

#define PROPERTYCOUNT                           4

#include <tools/link.hxx>
#include <tools/list.hxx>
DECLARE_LIST( LinkList, Link * )

//_________________________________________________________________________________________________________________
//	private declarations!
//_________________________________________________________________________________________________________________

class SvtMenuOptions_Impl : public ConfigItem
{
	//-------------------------------------------------------------------------------------------------------------
	//	private member
	//-------------------------------------------------------------------------------------------------------------

	private:
        LinkList    aList;
		sal_Bool	m_bDontHideDisabledEntries			;	/// cache "DontHideDisabledEntries" of Menu section
		sal_Bool	m_bFollowMouse						;	/// cache "FollowMouse" of Menu section
		sal_Int16	m_nMenuIcons						;	/// cache "MenuIcons" of Menu section

	//-------------------------------------------------------------------------------------------------------------
	//	public methods
	//-------------------------------------------------------------------------------------------------------------

	public:

		//---------------------------------------------------------------------------------------------------------
		//	constructor / destructor
		//---------------------------------------------------------------------------------------------------------

		 SvtMenuOptions_Impl();
		~SvtMenuOptions_Impl();

        void AddListenerLink( const Link& rLink );
        void RemoveListenerLink( const Link& rLink );

		//---------------------------------------------------------------------------------------------------------
		//	overloaded methods of baseclass
		//---------------------------------------------------------------------------------------------------------

		/*-****************************************************************************************************//**
			@short		called for notify of configmanager
			@descr		These method is called from the ConfigManager before application ends or from the
			 			PropertyChangeListener if the sub tree broadcasts changes. You must update your
						internal values.

			@seealso	baseclass ConfigItem

			@param		"seqPropertyNames" is the list of properties which should be updated.
			@return		-

			@onerror	-
		*//*-*****************************************************************************************************/

    	virtual void Notify( const Sequence< OUString >& seqPropertyNames );

		/*-****************************************************************************************************//**
			@short		write changes to configuration
			@descr		These method writes the changed values into the sub tree
						and should always called in our destructor to guarantee consistency of config data.

			@seealso	baseclass ConfigItem

			@param		-
			@return		-

			@onerror	-
		*//*-*****************************************************************************************************/

    	virtual void Commit();

		//---------------------------------------------------------------------------------------------------------
		//	public interface
		//---------------------------------------------------------------------------------------------------------

		/*-****************************************************************************************************//**
			@short		access method to get internal values
			@descr		These method give us a chance to regulate acces to ouer internal values.
						It's not used in the moment - but it's possible for the feature!

			@seealso	-

			@param		-
			@return		-

			@onerror	-
		*//*-*****************************************************************************************************/

		sal_Bool	IsEntryHidingEnabled() const
					{ return m_bDontHideDisabledEntries; }

		sal_Bool	IsFollowMouseEnabled() const
					{ return m_bFollowMouse; }

		sal_Int16	GetMenuIconsState() const
					{ return m_nMenuIcons; }

		void		SetEntryHidingState	( sal_Bool bState )
                    {
                        m_bDontHideDisabledEntries = bState;
                        SetModified();
                        for ( sal_uInt16 n=0; n<aList.Count(); n++ )
                            aList.GetObject(n)->Call( this );
						Commit();
                    }

		void		SetFollowMouseState	( sal_Bool bState )
                    {
                        m_bFollowMouse = bState;
                        SetModified();
                        for ( sal_uInt16 n=0; n<aList.Count(); n++ )
                            aList.GetObject(n)->Call( this );
						Commit();
                    }

		void		SetMenuIconsState ( sal_Int16 bState	)
                    {
                        m_nMenuIcons = bState;
                        SetModified();
                        for ( sal_uInt16 n=0; n<aList.Count(); n++ )
                            aList.GetObject(n)->Call( this );
						Commit();
                    }

	//-------------------------------------------------------------------------------------------------------------
	//	private methods
	//-------------------------------------------------------------------------------------------------------------

	private:

		/*-****************************************************************************************************//**
			@short		return list of fix key names of ouer configuration management which represent oue module tree
			@descr		These methods return a static const list of key names. We need it to get needed values from our
						configuration management.

			@seealso	-

			@param		-
			@return		A list of needed configuration keys is returned.

			@onerror	-
		*//*-*****************************************************************************************************/

		static Sequence< OUString > impl_GetPropertyNames();
};

//_________________________________________________________________________________________________________________
//	definitions
//_________________________________________________________________________________________________________________

//*****************************************************************************************************************
//	constructor
//*****************************************************************************************************************
SvtMenuOptions_Impl::SvtMenuOptions_Impl()
	// Init baseclasses first
    :	ConfigItem					( ROOTNODE_MENU						)
	// Init member then.
	,	m_bDontHideDisabledEntries	( DEFAULT_DONTHIDEDISABLEDENTRIES	)
	,	m_bFollowMouse				( DEFAULT_FOLLOWMOUSE				)
	,   m_nMenuIcons				( DEFAULT_MENUICONS 				)
{
	// Use our static list of configuration keys to get his values.
	Sequence< OUString >	seqNames	= impl_GetPropertyNames();
	Sequence< Any >			seqValues	= GetProperties( seqNames )	;

	// Safe impossible cases.
	// We need values from ALL configuration keys.
	// Follow assignment use order of values in relation to our list of key names!
	DBG_ASSERT( !(seqNames.getLength()!=seqValues.getLength()), "SvtMenuOptions_Impl::SvtMenuOptions_Impl()\nI miss some values of configuration keys!\n" );

    sal_Bool bMenuIcons = true;
    sal_Bool bSystemMenuIcons = true;

	// Copy values from list in right order to ouer internal member.
	sal_Int32 nPropertyCount	=	seqValues.getLength()	;
	sal_Int32 nProperty			=	0						;
	for( nProperty=0; nProperty<nPropertyCount; ++nProperty )
	{
		// Safe impossible cases.
		// Check any for valid value.
		DBG_ASSERT( !(seqValues[nProperty].hasValue()==sal_False), "SvtMenuOptions_Impl::SvtMenuOptions_Impl()\nInvalid property value for property detected!\n" );
        switch( nProperty )
        {
            case PROPERTYHANDLE_DONTHIDEDISABLEDENTRIES	:	{
																DBG_ASSERT(!(seqValues[nProperty].getValueTypeClass()!=TypeClass_BOOLEAN), "SvtMenuOptions_Impl::SvtMenuOptions_Impl()\nWho has changed the value type of \"Office.Common\\View\\Menu\\DontHideDisabledEntry\"?" );
																seqValues[nProperty] >>= m_bDontHideDisabledEntries;
															}
															break;

            case PROPERTYHANDLE_FOLLOWMOUSE				:	{
																DBG_ASSERT(!(seqValues[nProperty].getValueTypeClass()!=TypeClass_BOOLEAN), "SvtMenuOptions_Impl::SvtMenuOptions_Impl()\nWho has changed the value type of \"Office.Common\\View\\Menu\\FollowMouse\"?" );
																seqValues[nProperty] >>= m_bFollowMouse;
															}
															break;
            case PROPERTYHANDLE_SHOWICONSINMENUES       :   {
                                                                DBG_ASSERT(!(seqValues[nProperty].getValueTypeClass()!=TypeClass_BOOLEAN), "SvtMenuOptions_Impl::SvtMenuOptions_Impl()\nWho has changed the value type of \"Office.Common\\View\\Menu\\ShowIconsInMenues\"?" );
                                                                seqValues[nProperty] >>= bMenuIcons;
															}
															break;
            case PROPERTYHANDLE_SYSTEMICONSINMENUES		:   {
                                                                DBG_ASSERT(!(seqValues[nProperty].getValueTypeClass()!=TypeClass_BOOLEAN), "SvtMenuOptions_Impl::SvtMenuOptions_Impl()\nWho has changed the value type of \"Office.Common\\View\\Menu\\IsSystemIconsInMenus\"?" );
                                                                seqValues[nProperty] >>= bSystemMenuIcons;
															}
															break;
        }
	}

	m_nMenuIcons = bSystemMenuIcons ? 2 : bMenuIcons;

	EnableNotification( seqNames );
}

//*****************************************************************************************************************
//	destructor
//*****************************************************************************************************************
SvtMenuOptions_Impl::~SvtMenuOptions_Impl()
{
	// Flush data to configuration!
	// User has no chance to do that.
	if( IsModified() == sal_True )
	{
		Commit();
	}

    for ( sal_uInt16 n=0; n<aList.Count(); )
        delete aList.Remove(n);
}

//*****************************************************************************************************************
//	public method
//*****************************************************************************************************************
void SvtMenuOptions_Impl::Notify( const Sequence< OUString >& seqPropertyNames )
{
	// Use given list of updated properties to get his values from configuration directly!
	Sequence< Any > seqValues = GetProperties( seqPropertyNames );
	// Safe impossible cases.
	// We need values from ALL notified configuration keys.
	DBG_ASSERT( !(seqPropertyNames.getLength()!=seqValues.getLength()), "SvtMenuOptions_Impl::Notify()\nI miss some values of configuration keys!\n" );

	sal_Bool bMenuSettingsChanged = sal_False;
    sal_Bool bMenuIcons = sal_True;
    sal_Bool bSystemMenuIcons = sal_True;
    if (m_nMenuIcons == 2)
        bMenuIcons = (sal_Bool)(Application::GetSettings().GetStyleSettings().GetUseImagesInMenus());
    else
    {
        bSystemMenuIcons = sal_False;
        bMenuIcons = m_nMenuIcons ? sal_True : sal_False;
    }

	// Step over list of property names and get right value from coreesponding value list to set it on internal members!
	sal_Int32 nCount = seqPropertyNames.getLength();
	for( sal_Int32 nProperty=0; nProperty<nCount; ++nProperty )
	{
		if( seqPropertyNames[nProperty] == PROPERTYNAME_DONTHIDEDISABLEDENTRIES )
		{
			DBG_ASSERT(!(seqValues[nProperty].getValueTypeClass()!=TypeClass_BOOLEAN), "SvtMenuOptions_Impl::Notify()\nWho has changed the value type of \"Office.Common\\View\\Menu\\DontHideDisabledEntry\"?" );
			seqValues[nProperty] >>= m_bDontHideDisabledEntries;
		}
		else if( seqPropertyNames[nProperty] == PROPERTYNAME_FOLLOWMOUSE )
		{
			DBG_ASSERT(!(seqValues[nProperty].getValueTypeClass()!=TypeClass_BOOLEAN), "SvtMenuOptions_Impl::Notify()\nWho has changed the value type of \"Office.Common\\View\\Menu\\FollowMouse\"?" );
			seqValues[nProperty] >>= m_bFollowMouse;
		}
        else if( seqPropertyNames[nProperty] == PROPERTYNAME_SHOWICONSINMENUES )
		{
            DBG_ASSERT(!(seqValues[nProperty].getValueTypeClass()!=TypeClass_BOOLEAN), "SvtMenuOptions_Impl::SvtMenuOptions_Impl()\nWho has changed the value type of \"Office.Common\\View\\Menu\\ShowIconsInMenues\"?" );
            bMenuSettingsChanged = seqValues[nProperty] >>= bMenuIcons;
        }
        else if( seqPropertyNames[nProperty] == PROPERTYNAME_SYSTEMICONSINMENUES )
		{
            DBG_ASSERT(!(seqValues[nProperty].getValueTypeClass()!=TypeClass_BOOLEAN), "SvtMenuOptions_Impl::SvtMenuOptions_Impl()\nWho has changed the value type of \"Office.Common\\View\\Menu\\IsSystemIconsInMenus\"?" );
            bMenuSettingsChanged = seqValues[nProperty] >>= bSystemMenuIcons;
        }

        #if OSL_DEBUG_LEVEL > 1
		else DBG_ASSERT( sal_False, "SvtMenuOptions_Impl::Notify()\nUnkown property detected ... I can't handle these!\n" );
		#endif
	}

	if ( bMenuSettingsChanged )
		m_nMenuIcons = bSystemMenuIcons ? 2 : bMenuIcons;

    for ( sal_uInt16 n=0; n<aList.Count(); n++ )
        aList.GetObject(n)->Call( this );
}

//*****************************************************************************************************************
//	public method
//*****************************************************************************************************************
void SvtMenuOptions_Impl::Commit()
{
	// Get names of supported properties, create a list for values and copy current values to it.
	Sequence< OUString >	seqNames	= impl_GetPropertyNames();
	sal_Int32				nCount		= seqNames.getLength();
	Sequence< Any >			seqValues	( nCount );
	for( sal_Int32 nProperty=0; nProperty<nCount; ++nProperty )
	{
        switch( nProperty )
        {
            case PROPERTYHANDLE_DONTHIDEDISABLEDENTRIES	:	{
                												seqValues[nProperty] <<= m_bDontHideDisabledEntries;
															}
                											break;

            case PROPERTYHANDLE_FOLLOWMOUSE				:	{
                												seqValues[nProperty] <<= m_bFollowMouse;
															}
                											break;
			//Output cache of current setting as possibly modified by System Theme for older version
            case PROPERTYHANDLE_SHOWICONSINMENUES       :   {
                                                                sal_Bool bValue = (sal_Bool)(Application::GetSettings().GetStyleSettings().GetUseImagesInMenus());
																seqValues[nProperty] <<= bValue;
															}
                											break;
            case PROPERTYHANDLE_SYSTEMICONSINMENUES		:   {
																sal_Bool bValue = (m_nMenuIcons == 2 ? sal_True : sal_False) ;
                                                                seqValues[nProperty] <<= bValue;
															}
                											break;
        }
	}
	// Set properties in configuration.
	PutProperties( seqNames, seqValues );
}

//*****************************************************************************************************************
//	private method
//*****************************************************************************************************************
Sequence< OUString > SvtMenuOptions_Impl::impl_GetPropertyNames()
{
	// Build static list of configuration key names.
	static const OUString pProperties[] =
	{
		PROPERTYNAME_DONTHIDEDISABLEDENTRIES	,
		PROPERTYNAME_FOLLOWMOUSE				,
        PROPERTYNAME_SHOWICONSINMENUES			,
        PROPERTYNAME_SYSTEMICONSINMENUES
	};
	// Initialize return sequence with these list ...
	static const Sequence< OUString > seqPropertyNames( pProperties, PROPERTYCOUNT );
	// ... and return it.
	return seqPropertyNames;
}

void SvtMenuOptions_Impl::AddListenerLink( const Link& rLink )
{
    aList.Insert( new Link( rLink ) );
}

void SvtMenuOptions_Impl::RemoveListenerLink( const Link& rLink )
{
    for ( sal_uInt16 n=0; n<aList.Count(); n++ )
    {
        if ( (*aList.GetObject(n) ) == rLink )
        {
            delete aList.Remove(n);
            break;
        }
    }
}

//*****************************************************************************************************************
//	initialize static member
//	DON'T DO IT IN YOUR HEADER!
//	see definition for further informations
//*****************************************************************************************************************
SvtMenuOptions_Impl*	SvtMenuOptions::m_pDataContainer	= NULL	;
sal_Int32				SvtMenuOptions::m_nRefCount			= 0		;

//*****************************************************************************************************************
//	constructor
//*****************************************************************************************************************
SvtMenuOptions::SvtMenuOptions()
{
    // Global access, must be guarded (multithreading!).
    MutexGuard aGuard( GetOwnStaticMutex() );
	// Increase ouer refcount ...
	++m_nRefCount;
	// ... and initialize ouer data container only if it not already!
    if( m_pDataContainer == NULL )
	{
        RTL_LOGFILE_CONTEXT(aLog, "svtools ( ??? ) ::SvtMenuOptions_Impl::ctor()");
        m_pDataContainer = new SvtMenuOptions_Impl();

        ItemHolder2::holdConfigItem(E_MENUOPTIONS);
	}
}

//*****************************************************************************************************************
//	destructor
//*****************************************************************************************************************
SvtMenuOptions::~SvtMenuOptions()
{
    // Global access, must be guarded (multithreading!)
    MutexGuard aGuard( GetOwnStaticMutex() );
	// Decrease ouer refcount.
	--m_nRefCount;
	// If last instance was deleted ...
	// we must destroy ouer static data container!
    if( m_nRefCount <= 0 )
	{
		delete m_pDataContainer;
		m_pDataContainer = NULL;
	}
}

//*****************************************************************************************************************
//	public method
//*****************************************************************************************************************
sal_Bool SvtMenuOptions::IsEntryHidingEnabled() const
{
    MutexGuard aGuard( GetOwnStaticMutex() );
	return m_pDataContainer->IsEntryHidingEnabled();
}

//*****************************************************************************************************************
//	public method
//*****************************************************************************************************************
sal_Bool SvtMenuOptions::IsFollowMouseEnabled() const
{
    MutexGuard aGuard( GetOwnStaticMutex() );
	return m_pDataContainer->IsFollowMouseEnabled();
}

//*****************************************************************************************************************
//	public method
//*****************************************************************************************************************
void SvtMenuOptions::SetEntryHidingState( sal_Bool bState )
{
    MutexGuard aGuard( GetOwnStaticMutex() );
	m_pDataContainer->SetEntryHidingState( bState );
}

//*****************************************************************************************************************
//	public method
//*****************************************************************************************************************
void SvtMenuOptions::SetFollowMouseState( sal_Bool bState )
{
    MutexGuard aGuard( GetOwnStaticMutex() );
	m_pDataContainer->SetFollowMouseState( bState );
}

//*****************************************************************************************************************
//	public method
//*****************************************************************************************************************
sal_Int16 SvtMenuOptions::GetMenuIconsState() const
{
    MutexGuard aGuard( GetOwnStaticMutex() );
	return m_pDataContainer->GetMenuIconsState();
}

//*****************************************************************************************************************
//	public method
//*****************************************************************************************************************
void SvtMenuOptions::SetMenuIconsState( sal_Int16 bState )
{
    MutexGuard aGuard( GetOwnStaticMutex() );
	m_pDataContainer->SetMenuIconsState( bState );
}

//*****************************************************************************************************************
//	private method
//*****************************************************************************************************************
Mutex& SvtMenuOptions::GetOwnStaticMutex()
{
	// Initialize static mutex only for one time!
    static Mutex* pMutex = NULL;
	// If these method first called (Mutex not already exist!) ...
    if( pMutex == NULL )
    {
		// ... we must create a new one. Protect follow code with the global mutex -
		// It must be - we create a static variable!
        MutexGuard aGuard( Mutex::getGlobalMutex() );
		// We must check our pointer again - because it can be that another instance of ouer class will be fastr then these!
        if( pMutex == NULL )
        {
			// Create the new mutex and set it for return on static variable.
            static Mutex aMutex;
            pMutex = &aMutex;
        }
    }
	// Return new created or already existing mutex object.
    return *pMutex;
}

void SvtMenuOptions::AddListenerLink( const Link& rLink )
{
    m_pDataContainer->AddListenerLink( rLink );
}

void SvtMenuOptions::RemoveListenerLink( const Link& rLink )
{
    m_pDataContainer->RemoveListenerLink( rLink );
}
