/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.0 (the "NPL"); you may not use this file except in
 * compliance with the NPL.  You may obtain a copy of the NPL at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the NPL is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
 * for the specific language governing rights and limitations under the
 * NPL.
 *
 * The Initial Developer of this code under the NPL is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
 * Reserved.
 */

#include "nsISupports.idl"

%{C++
#include "jsapi.h"


typedef int (*PrefChangedFunc)(const char *, void *);
 
#define NS_PREF_CID                                    \
  { /* {dc26e0e0-ca94-11d1-a9a4-00805f8a7ac4} */       \
    0xdc26e0e0,                                        \
    0xca94,                                            \
    0x11d1,                                            \
    { 0xa9, 0xa4, 0x00, 0x80, 0x5f, 0x8a, 0x7a, 0xc4 } \
  }
 
#define NS_PREF_VALUE_CHANGED 1 
%}
[ptr] native JSContext(JSContext);
[ptr] native JSObject(JSObject);
native PrefChangedFunc(PrefChangedFunc);

interface nsIFileSpec; 

[scriptable, uuid(a22ad7b0-ca86-11d1-a9a4-00805f8a7ac4)]
interface nsIPref : nsISupports {
%{C++
  /* Pref types - see GetPrefType() */
  enum { 
      ePrefInvalid = 0,
      ePrefLocked = 1, 
      ePrefUserset = 2, 
      ePrefConfig = 4, 
      ePreRemote = 8,
      ePrefLilocal = 16, 
      ePrefString = 32, 
      ePrefInt = 64, 
      ePrefBool = 128,
      ePrefValuetypeMask = (ePrefString | ePrefInt | ePrefBool)
  };
%}

  // Initialize/shutdown
  void StartUp();
  void ReadUserPrefs();
  void ReadUserPrefsFrom(in nsIFileSpec spec);
  void ResetPrefs();
  void ShutDown();

  // Config file input
  void ReadUserJSFile(in nsIFileSpec filename);
  void ReadLIJSFile(in nsIFileSpec filename);

  void EvaluateConfigScript(in string js_buffer, in PRUint32 length,
                            in boolean bGlobalContext,
                            in boolean bCallbacks);

  void EvaluateConfigScriptFile(in string js_buffer, in PRUint32 length,
                                in nsIFileSpec filename,
                                in boolean bGlobalContext,
                                in boolean bCallbacks);
  
  void SavePrefFileAs(in nsIFileSpec filename);
  void SaveLIPrefFile(in nsIFileSpec filename);
  
  /* JS Stuff - don't allow this to be scriptable */
  [noscript] readonly attribute JSContext configContext;
  [noscript] readonly attribute JSObject globalConfigObject;
  [noscript] readonly attribute JSObject prefConfigObject;

  /* Getters */
  long GetPrefType(in string pref);
  long GetIntPref(in string pref);
  boolean GetBoolPref(in string pref);
  [noscript] void GetBinaryPref(in string pref, in voidStar buf, inout long buf_length);
  void GetColorPref(in string pref, out octet red, out octet green, out octet blue);

  unsigned long GetColorPrefDWord(in string pref);
  void GetRectPref(in string pref,
                   out short left, out short top,
                   out short right, out short bottom);

  /* set preferences */
  void SetCharPref(in string pref, in string value);
  void SetIntPref(in string pref, in long value);
  void SetBoolPref(in string pref, in boolean value);
  [noscript] void SetBinaryPref(in string pref, in voidStar value, in unsigned long size);
  void SetColorPref(in string pref,in octet red, in octet green,in octet blue);
  void SetColorPrefDWord(in string pref, in unsigned long colorref);

  void SetRectPref(in string pref,
                   in short left, in short top,
                   in short right, in short bottom);
  void ClearUserPref(in string pref_name);
  
  /* get defaults */
  long GetDefaultIntPref(in string pref);
  boolean GetDefaultBoolPref(in string pref);
  [noscript] void GetDefaultBinaryPref(in string pref, in voidStar value,
                            out long length);
  void GetDefaultColorPref(in string pref,
                           out octet red, out octet green, out octet blue);

  unsigned long GetDefaultColorPrefDWord(in string pref);
  void GetDefaultRectPref(in string pref,
                          out short left, out short top,
                          out short right, out short bottom);

  /* set defaults */
  void SetDefaultCharPref(in string pref, in string value);
  void SetDefaultIntPref(in string pref, in long value);
  void SetDefaultBoolPref(in string pref, in boolean value);
  [noscript] void SetDefaultBinaryPref(in string pref, in voidStar value, in unsigned long size);
  void SetDefaultColorPref(in string pref,in octet red, in octet green,in octet blue);

  void SetDefaultRectPref(in string pref,
                   in short left, in short top,
                   in short right, in short bottom);
  
  /* copy versions of getters */
  string CopyCharPref(in string pref);
  [noscript] voidStar CopyBinaryPref(in string pref, out long size);
  
  string CopyDefaultCharPref(in string pref);
  [noscript] voidStar CopyDefaultBinaryPref(in string pref, out long size);

  nsIFileSpec GetFilePref(in string pref);
  void SetFilePref(in string pref, in nsIFileSpec value, in boolean setDefault);
  
  /* pref attributes */
  boolean PrefIsLocked(in string pref);

  /* save pref values */
  void SavePrefFile();

  /* callbacks */
  [noscript] void RegisterCallback(in string domain,
                        in PrefChangedFunc callback,
                        in voidStar closure);
  [noscript] void UnregisterCallback(in string domain,
                          in PrefChangedFunc callback,
                          in voidStar closure);

  void CopyPrefsTree(in string srcRoot, in string destRoot);
  void DeleteBranch(in string branchName);
  
  string CreateChildList(in string parent_node);
  string NextChild(in string child_list, out short index);

};