/*
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 *
 */
 /*
    Contains:   Object store for module preferences.
    
    
    
*/

#ifndef __QTSSMODULEPREFS_H__
#define __QTSSMODULEPREFS_H__

#include "QTSS.h"
#include "QTSSDictionary.h"
#include "QTSSModuleUtils.h"

#include "StrPtrLen.h"
#include "XMLPrefsParser.h"

class QTSSPrefs : public QTSSDictionary
{
    public:

        QTSSPrefs(  XMLPrefsParser* inPrefsSource,
                    StrPtrLen* inModuleName,
                    QTSSDictionaryMap* inMap,
                    Bool16 areInstanceAttrsAllowed,
                    QTSSPrefs* parentDictionary = NULL );
        virtual ~QTSSPrefs() { if (fPrefName != NULL) delete [] fPrefName; }
        
        //This is callable at any time, and is thread safe wrt to the accessors
        void        RereadPreferences();
        void        RereadObjectPreferences(ContainerRef container);
        
        //
        // ACCESSORS
        OSMutex*    GetMutex() { return &fPrefsMutex; }
        
        ContainerRef GetContainerRefForObject(QTSSPrefs* object);
        ContainerRef GetContainerRef();
        
    protected:

        XMLPrefsParser* fPrefsSource;
        OSMutex fPrefsMutex;
        char*   fPrefName;
        QTSSPrefs* fParentDictionary;
    
        //
        // SET PREF VALUES FROM FILE
        //
        // Places all the values at inPrefIndex of the prefs file into the attribute
        // with the specified ID. This attribute must already exist.
        //
        // Specify inNumValues if you wish to restrict the number of values retrieved
        // from the text file to a certain number, otherwise specify 0.
        void SetPrefValuesFromFile(ContainerRef container, UInt32 inPrefIndex, QTSS_AttributeID inAttrID, UInt32 inNumValues = 0);
        void SetPrefValuesFromFileWithRef(ContainerRef pref, QTSS_AttributeID inAttrID, UInt32 inNumValues = 0);
        void SetObjectValuesFromFile(ContainerRef pref, QTSS_AttributeID inAttrID, UInt32 inNumValues, char* prefName);

        //
        // SET PREF VALUE
        //
        // Places the specified value into the attribute with inAttrID, at inAttrIndex
        // index. This function does the conversion, and uses the converted size of the
        // value when setting the value. If you wish to override this size, specify inValueSize,
        // otherwise it can be 0.
        void SetPrefValue(QTSS_AttributeID inAttrID, UInt32 inAttrIndex,
                         char* inPrefValue, QTSS_AttrDataType inPrefType, UInt32 inValueSize = 0);

        
    protected:
    
        //
        // Completion routines for SetValue and RemoveValue write back to the config source
        virtual void    RemoveValueComplete(UInt32 inAttrIndex, QTSSDictionaryMap* inMap,
                                        UInt32 inValueIndex);
                                        
        virtual void    SetValueComplete(UInt32 inAttrIndex, QTSSDictionaryMap* inMap,
                                UInt32 inValueIndex, void* inNewValue, UInt32 inNewValueLen);
        
        virtual void    RemoveInstanceAttrComplete(UInt32 inAttrindex, QTSSDictionaryMap* inMap);
        
        virtual QTSSDictionary* CreateNewDictionary(QTSSDictionaryMap* inMap, OSMutex* inMutex);

    private:
    
        QTSS_AttributeID AddPrefAttribute(const char* inAttrName, QTSS_AttrDataType inDataType);
                        
};
#endif //__QTSSMODULEPREFS_H__
