Files
Mozilla/mozilla/modules/libpref/src/nsPref.cpp
mcmullen%netscape.com eb74bbff62 Fix an error return value.
git-svn-id: svn://10.0.0.236/trunk@29203 18797224-902f-48f8-a5cc-f745e15eee43
1999-04-26 18:46:13 +00:00

1147 lines
38 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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 "nsIPref.h"
#include "pratom.h"
#include "prefapi.h"
#include "nsIFactory.h"
#include "nsIComponentManager.h"
#ifdef XP_MAC
#include "nsINetSupport.h"
#include "nsIStreamListener.h"
#endif
#include "nsIServiceManager.h"
#include "nsIFileLocator.h"
#include "nsCOMPtr.h"
#include "nsFileSpec.h"
#include "nsFileLocations.h"
#include "nsFileStream.h"
#include "plhash.h"
#include "prmem.h"
#include "plstr.h"
#include "jsapi.h"
#ifdef _WIN32
#include "windows.h"
#endif /* _WIN32 */
#if defined(XP_MAC) || defined(XP_UNIX)
#include "fe_proto.h"
#endif
#if defined(XP_PC) || defined(XP_OS2)
#define LINEBREAK "\n"
#endif
#define XP_QSORT qsort
#include "prefapi_private_data.h"
static NS_DEFINE_IID(kIPrefIID, NS_IPREF_IID);
static NS_DEFINE_IID(kIFileLocatorIID, NS_IFILELOCATOR_IID);
static NS_DEFINE_CID(kPrefCID, NS_PREF_CID);
static NS_DEFINE_CID(kComponentManagerCID, NS_COMPONENTMANAGER_CID);
static NS_DEFINE_CID(kFileLocatorCID, NS_FILELOCATOR_CID);
//========================================================================================
class nsPref: public nsIPref
//========================================================================================
{
NS_DECL_ISUPPORTS
public:
static nsPref *GetInstance();
#ifdef PREF_SUPPORT_OLD_PATH_STRINGS
NS_IMETHOD ReadUserJSFile(const char *filename); // deprecated
NS_IMETHOD ReadLIJSFile(const char *filename); // deprecated
NS_IMETHOD EvaluateConfigScript(const char * js_buffer, size_t length,
const char* filename,
PRBool bGlobalContext,
PRBool bCallbacks); // deprecated
NS_IMETHOD SavePrefFileAs(const char *filename);
NS_IMETHOD SaveLIPrefFile(const char *filename);
// Path prefs
NS_IMETHOD CopyPathPref(const char *pref, char ** return_buf);
NS_IMETHOD SetPathPref(const char *pref,
const char *path, PRBool set_default);
#endif
// Initialize/shutdown
NS_IMETHOD StartUp();
NS_IMETHOD StartUpWith(const nsFileSpec& inSpec);
NS_IMETHOD ShutDown();
// Config file input
NS_IMETHOD ReadUserJSFile(const nsFileSpec& inSpec);
NS_IMETHOD ReadLIJSFile(const nsFileSpec& inSpec);
NS_IMETHOD EvaluateConfigScript(const char * js_buffer, size_t length,
PRBool bGlobalContext,
PRBool bCallbacks);
NS_IMETHOD EvaluateConfigScriptFile(const char * js_buffer, size_t length,
const nsFileSpec& inSpec,
PRBool bGlobalContext,
PRBool bCallbacks);
NS_IMETHOD SavePrefFileAs(const nsFileSpec& inSpec);
NS_IMETHOD SaveLIPrefFile(const nsFileSpec& inSpec);
// JS stuff
NS_IMETHOD GetConfigContext(JSContext **js_context);
NS_IMETHOD GetGlobalConfigObject(JSObject **js_object);
NS_IMETHOD GetPrefConfigObject(JSObject **js_object);
// Getters
NS_IMETHOD GetCharPref(const char *pref,
char * return_buf, int * buf_length);
NS_IMETHOD GetIntPref(const char *pref, PRInt32 * return_int);
NS_IMETHOD GetBoolPref(const char *pref, PRBool * return_val);
NS_IMETHOD GetBinaryPref(const char *pref,
void * return_val, int * buf_length);
NS_IMETHOD GetColorPref(const char *pref,
uint8 *red, uint8 *green, uint8 *blue);
NS_IMETHOD GetColorPrefDWord(const char *pref, PRUint32 *colorref);
NS_IMETHOD GetRectPref(const char *pref,
PRInt16 *left, PRInt16 *top,
PRInt16 *right, PRInt16 *bottom);
// Setters
NS_IMETHOD SetCharPref(const char *pref,const char* value);
NS_IMETHOD SetIntPref(const char *pref,PRInt32 value);
NS_IMETHOD SetBoolPref(const char *pref,PRBool value);
NS_IMETHOD SetBinaryPref(const char *pref,void * value, long size);
NS_IMETHOD SetColorPref(const char *pref,
uint8 red, uint8 green, uint8 blue);
NS_IMETHOD SetColorPrefDWord(const char *pref, PRUint32 colorref);
NS_IMETHOD SetRectPref(const char *pref,
PRInt16 left, PRInt16 top, PRInt16 right, PRInt16 bottom);
NS_IMETHOD ClearUserPref(const char *pref);
// Get Defaults
NS_IMETHOD GetDefaultCharPref(const char *pref,
char * return_buf, int * buf_length);
NS_IMETHOD GetDefaultIntPref(const char *pref, PRInt32 * return_int);
NS_IMETHOD GetDefaultBoolPref(const char *pref, PRBool * return_val);
NS_IMETHOD GetDefaultBinaryPref(const char *pref,
void * return_val, int * buf_length);
NS_IMETHOD GetDefaultColorPref(const char *pref,
uint8 *red, uint8 *green, uint8 *blue);
NS_IMETHOD GetDefaultColorPrefDWord(const char *pref,
PRUint32 *colorref);
NS_IMETHOD GetDefaultRectPref(const char *pref,
PRInt16 *left, PRInt16 *top,
PRInt16 *right, PRInt16 *bottom);
// Set defaults
NS_IMETHOD SetDefaultCharPref(const char *pref,const char* value);
NS_IMETHOD SetDefaultIntPref(const char *pref,PRInt32 value);
NS_IMETHOD SetDefaultBoolPref(const char *pref,PRBool value);
NS_IMETHOD SetDefaultBinaryPref(const char *pref,
void * value, long size);
NS_IMETHOD SetDefaultColorPref(const char *pref,
uint8 red, uint8 green, uint8 blue);
NS_IMETHOD SetDefaultRectPref(const char *pref,
PRInt16 left, PRInt16 top,
PRInt16 right, PRInt16 bottom);
// Copy prefs
NS_IMETHOD CopyCharPref(const char *pref, char ** return_buf);
NS_IMETHOD CopyBinaryPref(const char *pref,
void ** return_value, int *size);
NS_IMETHOD CopyDefaultCharPref( const char
*pref, char ** return_buffer );
NS_IMETHOD CopyDefaultBinaryPref(const char *pref,
void ** return_val, int * size);
NS_IMETHOD GetFilePref(const char* pref, nsFileSpec* value);
NS_IMETHOD SetFilePref(const char* pref, const nsFileSpec* value, PRBool setDefault);
// Pref info
NS_IMETHOD PrefIsLocked(const char *pref, PRBool *res);
// Save pref files
NS_IMETHOD SavePrefFile();
// Callbacks
NS_IMETHOD RegisterCallback( const char* domain,
PrefChangedFunc callback,
void* instance_data );
NS_IMETHOD UnregisterCallback( const char* domain,
PrefChangedFunc callback,
void* instance_data );
NS_IMETHOD CopyPrefsTree(const char *srcRoot, const char *destRoot);
NS_IMETHOD DeleteBranch(const char *branchName);
protected:
nsPref();
virtual ~nsPref();
void useDefaultPrefFile();
static nsPref *gInstance;
nsFileSpec mFileSpec;
nsFileSpec mLIFileSpec;
}; // class nsPref
nsPref* nsPref::gInstance = NULL;
static PRInt32 g_InstanceCount = 0;
static PRInt32 g_LockCount = 0;
static PrefResult pref_OpenFileSpec(
const nsFileSpec& fileSpec,
PRBool is_error_fatal,
PRBool verifyHash,
PRBool bGlobalContext,
PRBool skipFirstLine);
//----------------------------------------------------------------------------------------
static nsresult _convertRes(int res)
//----------------------------------------------------------------------------------------
{
switch (res)
{
case PREF_OUT_OF_MEMORY:
return NS_ERROR_OUT_OF_MEMORY;
case PREF_NOT_INITIALIZED:
return NS_ERROR_NOT_INITIALIZED;
case PREF_TYPE_CHANGE_ERR:
case PREF_ERROR:
case PREF_BAD_LOCKFILE:
return NS_ERROR_UNEXPECTED;
case PREF_VALUECHANGED:
return NS_PREF_VALUE_CHANGED;
};
return NS_OK;
}
//----------------------------------------------------------------------------------------
nsPref::nsPref()
//----------------------------------------------------------------------------------------
{
PR_AtomicIncrement(&g_InstanceCount);
NS_INIT_REFCNT();
}
//----------------------------------------------------------------------------------------
nsPref::~nsPref()
//----------------------------------------------------------------------------------------
{
ShutDown();
PR_AtomicDecrement(&g_InstanceCount);
gInstance = NULL;
}
//----------------------------------------------------------------------------------------
void nsPref::useDefaultPrefFile()
//----------------------------------------------------------------------------------------
{
nsIFileLocator* locator = nsnull;
nsresult rv = nsServiceManager::GetService(kFileLocatorCID, kIFileLocatorIID, (nsISupports**)&locator);
if (NS_FAILED(rv))
return;
if (!locator)
return;
nsFileSpec newPrefs;
rv = locator->GetFileLocation(nsSpecialFileSpec::App_PreferencesFile50, &newPrefs);
if (NS_SUCCEEDED(rv))
{
if (!newPrefs.Exists())
{
nsOutputFileStream stream(newPrefs);
if (stream.is_open())
{
stream << "// This is an empty prefs file" << nsEndl;
}
}
if (newPrefs.Exists())
rv = StartUpWith(newPrefs);
}
nsServiceManager::ReleaseService(kFileLocatorCID, locator);
return;
} // nsPref::useDefaultPrefFile
//----------------------------------------------------------------------------------------
nsPref* nsPref::GetInstance()
//----------------------------------------------------------------------------------------
{
if (!gInstance)
{
gInstance = new nsPref();
gInstance->StartUp();
}
return gInstance;
} // nsPref::GetInstance
NS_IMPL_ISUPPORTS(nsPref, kIPrefIID);
//========================================================================================
// nsIPref Implementation
//========================================================================================
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::StartUp()
//----------------------------------------------------------------------------------------
{
useDefaultPrefFile();
return NS_OK;
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::StartUpWith(const nsFileSpec& inFile)
//----------------------------------------------------------------------------------------
{
if (mFileSpec == inFile)
return NS_OK;
PRBool ok = PR_TRUE;
/* --ML hash test */
if (!gHashTable)
gHashTable = PR_NewHashTable(2048, PR_HashString, PR_CompareStrings,
PR_CompareValues, &pref_HashAllocOps, NULL);
if (!gHashTable)
return PR_FALSE;
mFileSpec = inFile;
if (!gMochaTaskState)
gMochaTaskState = JS_Init((PRUint32) 0xffffffffL);
if (!gMochaContext)
{
gMochaContext = JS_NewContext(gMochaTaskState, 8192); /* ???? What size? */
if (!gMochaContext)
return PR_FALSE;
JS_BeginRequest(gMochaContext);
gGlobalConfigObject = JS_NewObject(gMochaContext, &global_class, NULL, NULL);
if (!gGlobalConfigObject)
{
JS_EndRequest(gMochaContext);
return PR_FALSE;
}
/* MLM - need a global object for set version call now. */
JS_SetGlobalObject(gMochaContext, gGlobalConfigObject);
JS_SetVersion(gMochaContext, JSVERSION_1_2);
if (!JS_InitStandardClasses(gMochaContext,
gGlobalConfigObject))
{
JS_EndRequest(gMochaContext);
return PR_FALSE;
}
JS_SetBranchCallback(gMochaContext, pref_BranchCallback);
JS_SetErrorReporter(gMochaContext, NULL);
gMochaPrefObject = JS_DefineObject(gMochaContext,
gGlobalConfigObject,
"PrefConfig",
&autoconf_class,
NULL,
JSPROP_ENUMERATE|JSPROP_READONLY);
if (gMochaPrefObject)
{
if (!JS_DefineProperties(gMochaContext,
gMochaPrefObject,
autoconf_props))
{
JS_EndRequest(gMochaContext);
return PR_FALSE;
}
if (!JS_DefineFunctions(gMochaContext,
gMochaPrefObject,
autoconf_methods))
{
JS_EndRequest(gMochaContext);
return PR_FALSE;
}
}
#if !defined(XP_PC) && !defined(XP_OS2) && !defined(XP_MAC)
ok = pref_InitInitialObjects();
#endif
}
else
JS_BeginRequest(gMochaContext);
if (ok && mFileSpec.Exists())
ok = (JSBool) (pref_OpenFileSpec(mFileSpec, PR_TRUE, PR_FALSE, PR_FALSE, PR_TRUE) == PREF_NOERROR);
else if (!ok)
gErrorOpeningUserPrefs = PR_TRUE;
JS_EndRequest(gMochaContext);
return ok;
} // nsPref::StartUpWith
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::ShutDown()
//----------------------------------------------------------------------------------------
{
PREF_Cleanup();
return NS_OK;
} // nsPref::ShutDown
/*
* Config file input
*/
#ifdef PREF_SUPPORT_OLD_PATH_STRINGS
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::ReadUserJSFile(const char *filename)
//----------------------------------------------------------------------------------------
{
return _convertRes(PREF_ReadUserJSFile(filename));
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::ReadLIJSFile(const char *filename)
//----------------------------------------------------------------------------------------
{
return _convertRes(PREF_ReadLIJSFile(filename));
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::EvaluateConfigScript(const char * js_buffer,
size_t length,
const char* filename,
PRBool bGlobalContext,
PRBool bCallbacks)
//----------------------------------------------------------------------------------------
{
return _convertRes(PREF_EvaluateConfigScript(js_buffer,
length,
filename,
bGlobalContext,
bCallbacks,
PR_TRUE));
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::SavePrefFileAs(const char *filename)
//----------------------------------------------------------------------------------------
{
return _convertRes(PREF_SavePrefFileAs(filename));
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::SaveLIPrefFile(const char *filename)
//----------------------------------------------------------------------------------------
{
return _convertRes(PREF_SaveLIPrefFile(filename));
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::CopyPathPref(const char *pref_name, char ** return_buffer)
//----------------------------------------------------------------------------------------
{
return _convertRes(PREF_CopyPathPref(pref_name, return_buffer));
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::SetPathPref(const char *pref_name, const char *path, PRBool set_default)
//----------------------------------------------------------------------------------------
{
return _convertRes(PREF_SetPathPref(pref_name, path, set_default));
}
#endif /* PREF_SUPPORT_OLD_PATH_STRINGS */
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::ReadUserJSFile(const nsFileSpec& fileSpec)
//----------------------------------------------------------------------------------------
{
return pref_OpenFileSpec(fileSpec, PR_FALSE, PR_FALSE, PR_TRUE, PR_FALSE);
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::ReadLIJSFile(const nsFileSpec& fileSpec)
//----------------------------------------------------------------------------------------
{
mLIFileSpec = fileSpec;
return pref_OpenFileSpec(fileSpec, PR_FALSE, PR_FALSE, PR_FALSE, PR_FALSE);
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::EvaluateConfigScript(const char * js_buffer,
size_t length,
PRBool bGlobalContext,
PRBool bCallbacks)
//----------------------------------------------------------------------------------------
{
return _convertRes(PREF_EvaluateConfigScript(js_buffer,
length,
nsnull, // bad, but not used for parsing.
bGlobalContext,
bCallbacks,
PR_TRUE));
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::EvaluateConfigScriptFile(const char * js_buffer,
size_t length,
const nsFileSpec& fileSpec,
PRBool bGlobalContext,
PRBool bCallbacks)
//----------------------------------------------------------------------------------------
{
return _convertRes(PREF_EvaluateConfigScript(js_buffer,
length,
fileSpec.GetCString(), // bad, but not used for parsing.
bGlobalContext,
bCallbacks,
PR_TRUE));
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::SavePrefFileAs(const nsFileSpec& fileSpec)
//----------------------------------------------------------------------------------------
{
return _convertRes(PREF_SavePrefFileSpecWith(fileSpec, (PLHashEnumerator)pref_savePref));
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::SaveLIPrefFile(const nsFileSpec& fileSpec)
//----------------------------------------------------------------------------------------
{
if (!gHashTable)
return PREF_NOT_INITIALIZED;
PREF_SetSpecialPrefsLocal();
return _convertRes(PREF_SavePrefFileSpecWith(fileSpec, (PLHashEnumerator)pref_saveLIPref));
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::SavePrefFile()
//----------------------------------------------------------------------------------------
{
if (!gHashTable)
return PREF_NOT_INITIALIZED;
#ifdef PREF_SUPPORT_OLD_PATH_STRINGS
if (gFileName)
return _convertRes(PREF_SavePrefFile());
#endif
return _convertRes(PREF_SavePrefFileSpecWith(mFileSpec, (PLHashEnumerator)pref_savePref));
}
/*
* JS stuff
*/
NS_IMETHODIMP nsPref::GetConfigContext(JSContext **js_context)
{
return _convertRes(PREF_GetConfigContext(js_context));
}
NS_IMETHODIMP nsPref::GetGlobalConfigObject(JSObject **js_object)
{
return _convertRes(PREF_GetGlobalConfigObject(js_object));
}
NS_IMETHODIMP nsPref::GetPrefConfigObject(JSObject **js_object)
{
return _convertRes(PREF_GetPrefConfigObject(js_object));
}
/*
* Getters
*/
NS_IMETHODIMP nsPref::GetCharPref(const char *pref,
char * return_buf, int * buf_length)
{
return _convertRes(PREF_GetCharPref(pref, return_buf, buf_length));
}
NS_IMETHODIMP nsPref::GetIntPref(const char *pref, PRInt32 * return_int)
{
return _convertRes(PREF_GetIntPref(pref, return_int));
}
NS_IMETHODIMP nsPref::GetBoolPref(const char *pref, PRBool * return_val)
{
return _convertRes(PREF_GetBoolPref(pref, return_val));
}
NS_IMETHODIMP nsPref::GetBinaryPref(const char *pref,
void * return_val, int * buf_length)
{
return _convertRes(PREF_GetBinaryPref(pref, return_val, buf_length));
}
NS_IMETHODIMP nsPref::GetColorPref(const char *pref,
uint8 *red, uint8 *green, uint8 *blue)
{
return _convertRes(PREF_GetColorPref(pref, red, green, blue));
}
NS_IMETHODIMP nsPref::GetColorPrefDWord(const char *pref,
PRUint32 *colorref)
{
return _convertRes(PREF_GetColorPrefDWord(pref, colorref));
}
NS_IMETHODIMP nsPref::GetRectPref(const char *pref,
PRInt16 *left, PRInt16 *top,
PRInt16 *right, PRInt16 *bottom)
{
return _convertRes(PREF_GetRectPref(pref, left, top, right, bottom));
}
/*
* Setters
*/
NS_IMETHODIMP nsPref::SetCharPref(const char *pref,const char* value)
{
return _convertRes(PREF_SetCharPref(pref, value));
}
NS_IMETHODIMP nsPref::SetIntPref(const char *pref,PRInt32 value)
{
return _convertRes(PREF_SetIntPref(pref, value));
}
NS_IMETHODIMP nsPref::SetBoolPref(const char *pref,PRBool value)
{
return _convertRes(PREF_SetBoolPref(pref, value));
}
NS_IMETHODIMP nsPref::SetBinaryPref(const char *pref,void * value, long size)
{
return _convertRes(PREF_SetBinaryPref(pref, value, size));
}
NS_IMETHODIMP nsPref::SetColorPref(const char *pref,
uint8 red, uint8 green, uint8 blue)
{
return _convertRes(PREF_SetColorPref(pref, red, green, blue));
}
NS_IMETHODIMP nsPref::SetColorPrefDWord(const char *pref,
PRUint32 value)
{
return _convertRes(PREF_SetColorPrefDWord(pref, value));
}
NS_IMETHODIMP nsPref::SetRectPref(const char *pref,
PRInt16 left, PRInt16 top,
PRInt16 right, PRInt16 bottom)
{
return _convertRes(PREF_SetRectPref(pref, left, top, right, bottom));
}
/*
* Get Defaults
*/
NS_IMETHODIMP nsPref::GetDefaultCharPref(const char *pref,
char * return_buf,
int * buf_length)
{
return _convertRes(PREF_GetDefaultCharPref(pref, return_buf, buf_length));
}
NS_IMETHODIMP nsPref::GetDefaultIntPref(const char *pref,
PRInt32 * return_int)
{
return _convertRes(PREF_GetDefaultIntPref(pref, return_int));
}
NS_IMETHODIMP nsPref::GetDefaultBoolPref(const char *pref,
PRBool * return_val)
{
return _convertRes(PREF_GetDefaultBoolPref(pref, return_val));
}
NS_IMETHODIMP nsPref::GetDefaultBinaryPref(const char *pref,
void * return_val,
int * buf_length)
{
return _convertRes(PREF_GetDefaultBinaryPref(pref, return_val, buf_length));
}
NS_IMETHODIMP nsPref::GetDefaultColorPref(const char *pref,
uint8 *red, uint8 *green,
uint8 *blue)
{
return _convertRes(PREF_GetDefaultColorPref(pref, red, green, blue));
}
NS_IMETHODIMP nsPref::GetDefaultColorPrefDWord(const char *pref,
PRUint32 *colorref)
{
return _convertRes(PREF_GetDefaultColorPrefDWord(pref, colorref));
}
NS_IMETHODIMP nsPref::GetDefaultRectPref(const char *pref,
PRInt16 *left, PRInt16 *top,
PRInt16 *right, PRInt16 *bottom)
{
return _convertRes(PREF_GetDefaultRectPref(pref,
left, top, right, bottom));
}
/*
* Set defaults
*/
NS_IMETHODIMP nsPref::SetDefaultCharPref(const char *pref,const char* value)
{
return _convertRes(PREF_SetDefaultCharPref(pref, value));
}
NS_IMETHODIMP nsPref::SetDefaultIntPref(const char *pref,PRInt32 value)
{
return _convertRes(PREF_SetDefaultIntPref(pref, value));
}
NS_IMETHODIMP nsPref::SetDefaultBoolPref(const char *pref, PRBool value)
{
return _convertRes(PREF_SetDefaultBoolPref(pref, value));
}
NS_IMETHODIMP nsPref::SetDefaultBinaryPref(const char *pref,
void * value, long size)
{
return _convertRes(PREF_SetDefaultBinaryPref(pref, value, size));
}
NS_IMETHODIMP nsPref::SetDefaultColorPref(const char *pref,
uint8 red, uint8 green, uint8 blue)
{
return _convertRes(PREF_SetDefaultColorPref(pref, red, green, blue));
}
NS_IMETHODIMP nsPref::SetDefaultRectPref(const char *pref,
PRInt16 left, PRInt16 top,
PRInt16 right, PRInt16 bottom)
{
return _convertRes(PREF_SetDefaultRectPref(pref, left, top, right, bottom));
}
NS_IMETHODIMP nsPref::ClearUserPref(const char *pref_name)
{
return _convertRes(PREF_ClearUserPref(pref_name));
}
/*
* Copy prefs
*/
NS_IMETHODIMP nsPref::CopyCharPref(const char *pref, char ** return_buf)
{
return _convertRes(PREF_CopyCharPref(pref, return_buf));
}
NS_IMETHODIMP nsPref::CopyBinaryPref(const char *pref,
void ** return_value, int *size)
{
return _convertRes(PREF_CopyBinaryPref(pref, return_value, size));
}
NS_IMETHODIMP nsPref::CopyDefaultCharPref( const char *pref,
char ** return_buffer )
{
return _convertRes(PREF_CopyDefaultCharPref(pref, return_buffer));
}
NS_IMETHODIMP nsPref::CopyDefaultBinaryPref(const char *pref,
void ** return_val, int * size)
{
return _convertRes(PREF_CopyDefaultBinaryPref(pref, return_val, size));
}
#if 0
/*
* Path prefs
*/
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::CopyPathPref(const char *pref, char ** return_buf)
//----------------------------------------------------------------------------------------
{
return _convertRes(PREF_CopyPathPref(pref, return_buf));
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::SetPathPref(const char *pref,
const char *path, PRBool set_default)
//----------------------------------------------------------------------------------------
{
return _convertRes(PREF_SetPathPref(pref, path, set_default));
}
#endif
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::GetFilePref(const char *pref_name, nsFileSpec* value)
//----------------------------------------------------------------------------------------
{
if (!value)
return NS_ERROR_NULL_POINTER;
char *encodedString = nsnull;
PrefResult result = PREF_CopyCharPref(pref_name, &encodedString);
if (result != PREF_NOERROR)
return _convertRes(result);
nsInputStringStream stream(encodedString);
nsPersistentFileDescriptor descriptor;
stream >> descriptor;
PR_Free(encodedString); // Allocated by PREF_CopyCharPref
*value = descriptor;
return NS_OK;
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::SetFilePref(const char *pref_name,
const nsFileSpec* value, PRBool set_default)
//----------------------------------------------------------------------------------------
{
if (!value)
return NS_ERROR_NULL_POINTER;
nsresult rv = NS_OK;
if (!value->Exists())
{
// nsPersistentFileDescriptor requires an existing
// object. Make it first.
nsFileSpec tmp(*value);
tmp.CreateDir();
}
nsPersistentFileDescriptor descriptor(*value);
char* encodedString = nsnull;
nsOutputStringStream stream(encodedString);
stream << descriptor;
if (encodedString && *encodedString)
{
if (set_default)
rv = PREF_SetDefaultCharPref(pref_name, encodedString);
else
rv = PREF_SetCharPref(pref_name, encodedString);
}
delete [] encodedString; // Allocated by nsOutputStringStream
return _convertRes(rv);
}
/*
* Pref info
*/
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::PrefIsLocked(const char *pref, PRBool *res)
//----------------------------------------------------------------------------------------
{
if (res == NULL)
return NS_ERROR_INVALID_POINTER;
*res = PREF_PrefIsLocked(pref);
return NS_OK;
}
/*
* Callbacks
*/
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::RegisterCallback( const char* domain,
PrefChangedFunc callback,
void* instance_data )
//----------------------------------------------------------------------------------------
{
PREF_RegisterCallback(domain, callback, instance_data);
return NS_OK;
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::UnregisterCallback( const char* domain,
PrefChangedFunc callback,
void* instance_data )
//----------------------------------------------------------------------------------------
{
return _convertRes(PREF_UnregisterCallback(domain, callback, instance_data));
}
/*
* Tree editing
*/
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::CopyPrefsTree(const char *srcRoot, const char *destRoot)
//----------------------------------------------------------------------------------------
{
return _convertRes(PREF_CopyPrefsTree(srcRoot, destRoot));
}
//----------------------------------------------------------------------------------------
NS_IMETHODIMP nsPref::DeleteBranch(const char *branchName)
//----------------------------------------------------------------------------------------
{
return _convertRes(PREF_DeleteBranch(branchName));
}
//========================================================================================
class nsPrefFactory: public nsIFactory
//========================================================================================
{
NS_DECL_ISUPPORTS
nsPrefFactory()
{
NS_INIT_REFCNT();
PR_AtomicIncrement(&g_InstanceCount);
}
virtual ~nsPrefFactory()
{
PR_AtomicDecrement(&g_InstanceCount);
}
NS_IMETHOD CreateInstance(nsISupports *aDelegate,
const nsIID &aIID,
void **aResult);
NS_IMETHOD LockFactory(PRBool aLock) {
if (aLock) {
PR_AtomicIncrement(&g_LockCount);
} else {
PR_AtomicDecrement(&g_LockCount);
}
return NS_OK;
};
};
static NS_DEFINE_IID(kFactoryIID, NS_IFACTORY_IID);
NS_IMPL_ISUPPORTS(nsPrefFactory, kFactoryIID);
//----------------------------------------------------------------------------------------
nsresult nsPrefFactory::CreateInstance(
nsISupports *aDelegate,
const nsIID &aIID,
void **aResult)
//----------------------------------------------------------------------------------------
{
if (aDelegate != NULL)
return NS_ERROR_NO_AGGREGATION;
nsPref *t = nsPref::GetInstance();
if (t == NULL)
return NS_ERROR_OUT_OF_MEMORY;
nsresult res = t->QueryInterface(aIID, aResult);
if (NS_FAILED(res))
*aResult = NULL;
return res;
}
//----------------------------------------------------------------------------------------
extern "C" NS_EXPORT nsresult NSGetFactory(
nsISupports* serviceMgr,
const nsCID &aClass,
const char *aClassName,
const char *aProgID,
nsIFactory **aFactory)
//----------------------------------------------------------------------------------------
{
if (aFactory == NULL)
return NS_ERROR_NULL_POINTER;
if (aClass.Equals(kPrefCID))
{
nsPrefFactory *factory = new nsPrefFactory();
nsresult res = factory->QueryInterface(kFactoryIID, (void **) aFactory);
if (NS_FAILED(res))
{
*aFactory = NULL;
delete factory;
}
return res;
}
return NS_NOINTERFACE;
}
//----------------------------------------------------------------------------------------
extern "C" NS_EXPORT PRBool NSCanUnload(nsISupports* serviceMgr)
//----------------------------------------------------------------------------------------
{
return PRBool(g_InstanceCount == 0 && g_LockCount == 0);
}
//----------------------------------------------------------------------------------------
extern "C" NS_EXPORT nsresult NSRegisterSelf(nsISupports* aServMgr, const char *path)
//----------------------------------------------------------------------------------------
{
nsresult rv;
nsCOMPtr<nsIServiceManager> servMgr(do_QueryInterface(aServMgr, &rv));
if (NS_FAILED(rv)) return rv;
nsIComponentManager* compMgr;
rv = servMgr->GetService(kComponentManagerCID,
nsIComponentManager::GetIID(),
(nsISupports**)&compMgr);
if (NS_FAILED(rv)) return rv;
rv = compMgr->RegisterComponent(kPrefCID, NULL, NULL, path,
PR_TRUE, PR_TRUE);
(void)servMgr->ReleaseService(kComponentManagerCID, compMgr);
return rv;
}
//----------------------------------------------------------------------------------------
extern "C" NS_EXPORT nsresult NSUnregisterSelf(nsISupports* aServMgr, const char *path)
//----------------------------------------------------------------------------------------
{
nsresult rv;
nsCOMPtr<nsIServiceManager> servMgr(do_QueryInterface(aServMgr, &rv));
if (NS_FAILED(rv)) return rv;
nsIComponentManager* compMgr;
rv = servMgr->GetService(
kComponentManagerCID,
nsIComponentManager::GetIID(),
(nsISupports**)&compMgr);
if (NS_FAILED(rv))
return rv;
rv = compMgr->UnregisterFactory(kPrefCID, path);
(void)servMgr->ReleaseService(kComponentManagerCID, compMgr);
return rv;
}
//========================================================================================
// C++ implementations of old C routines
//========================================================================================
//----------------------------------------------------------------------------------------
PrefResult pref_OpenFileSpec(
const nsFileSpec& fileSpec,
PRBool is_error_fatal,
PRBool verifyHash,
PRBool bGlobalContext,
PRBool skipFirstLine)
//----------------------------------------------------------------------------------------
{
PrefResult result = PREF_NOERROR;
if (!fileSpec.Exists())
return PREF_ERROR;
PRUint32 fileLength = fileSpec.GetFileSize();
if (fileLength == 0)
return PREF_ERROR;
nsInputFileStream stream(fileSpec);
if (!stream.is_open())
result = PREF_ERROR;
char* readBuf = nsnull;
if (result == PREF_NOERROR)
{
readBuf = (char*)PR_MALLOC(fileLength * sizeof(char));
if (!readBuf)
result = PREF_OUT_OF_MEMORY;
}
if (result == PREF_NOERROR)
{
PRUint32 bytesRead = stream.read(readBuf, fileLength);
if (bytesRead < fileLength)
result = PREF_ERROR;
else if (verifyHash && !pref_VerifyLockFile(readBuf, fileLength))
result = PREF_BAD_LOCKFILE;
else if (PREF_EvaluateConfigScript(readBuf, fileLength,
fileSpec.GetCString(), bGlobalContext, PR_FALSE, skipFirstLine))
result = PREF_NOERROR;
PR_Free(readBuf);
}
// If the user prefs file exists but generates an error,
// don't clobber the file when we try to save it
if ((!readBuf || result != PREF_NOERROR) && is_error_fatal)
gErrorOpeningUserPrefs = PR_TRUE;
#ifdef XP_PC
if (gErrorOpeningUserPrefs && is_error_fatal)
MessageBox(nsnull,"Error in preference file (prefs.js). Default preferences will be used.","Netscape - Warning", MB_OK);
#endif
JS_GC(gMochaContext);
return result;
} // pref_OpenFile
//----------------------------------------------------------------------------------------
PR_IMPLEMENT(PrefResult) PREF_SavePrefFileSpecWith(
const nsFileSpec& fileSpec,
PLHashEnumerator heSaveProc)
//----------------------------------------------------------------------------------------
{
if (!gHashTable)
return PREF_NOT_INITIALIZED;
/* ?! Don't save (blank) user prefs if there was an error reading them */
if (gErrorOpeningUserPrefs)
return PREF_NOERROR;
char** valueArray = (char**) PR_Calloc(sizeof(char*), gHashTable->nentries);
if (!valueArray)
return PREF_OUT_OF_MEMORY;
nsOutputFileStream stream(fileSpec);
if (!stream.is_open())
return PREF_ERROR;
stream << "// Mozilla User Preferences" << LINEBREAK
<< "// This is a generated file! Do not edit."
<< LINEBREAK << LINEBREAK;
/* LI_STUFF here we pass in the heSaveProc proc used so that li can do its own thing */
PR_HashTableEnumerateEntries(gHashTable, heSaveProc, valueArray);
/* Sort the preferences to make a readable file on disk */
XP_QSORT(valueArray, gHashTable->nentries, sizeof(char*), pref_CompareStrings);
for (PRUint32 valueIdx = 0; valueIdx < gHashTable->nentries; valueIdx++)
{
if (valueArray[valueIdx])
{
stream << valueArray[valueIdx];
PR_Free(valueArray[valueIdx]);
}
}
PR_Free(valueArray);
return PREF_NOERROR;
}