зеркало из https://github.com/mozilla/pjs.git
382 строки
14 KiB
C
382 строки
14 KiB
C
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/*
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// <pre>
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*/
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#ifndef PREFAPI_H
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#define PREFAPI_H
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#include "prtypes.h"
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#if defined(XP_UNIX) || defined(XP_MAC) || defined(XP_OS2)
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#include "xp_core.h"
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#endif
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#include "jscompat.h"
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#include "jspubtd.h"
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#ifdef XP_WIN
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#ifndef NSPR20
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#include "prhash.h"
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#else
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#include "plhash.h"
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#endif
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#endif
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NSPR_BEGIN_EXTERN_C
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#if defined(XP_WIN) || defined(XP_OS2)
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// horrible pre-declaration...so kill me.
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int pref_InitInitialObjects(JSContext *js_context,JSObject *js_object);
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PR_EXTERN(int) pref_savePref(PRHashEntry *he, int i, void *arg);
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#endif
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/*
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// <font color=blue>
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// The Init function sets up of the JavaScript preference context and creates
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// the basic preference and pref_array objects:
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// It also takes the filename of the preference file to use. This allows the
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// module to create its own pref file if that is so desired. If a filename isn't
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// passed, the pref module will either use the current name and file (if known) or
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// will call (FE_GetPrefFileName() ?) to have a module prompt the user to determine
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// which user it is (on a mulit-user system). In general, the FE should pass the
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// filename and the sub-modules should pass NULL
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//
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// At the moment, the Init function is defining 3 JavaScript functions that can be
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// called in arbitrary JavaScript (like that passed to the EvaluateJS function below).
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// This may increase in the future...
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//
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// pref(pref_name,default_value) : Setup the initial preference storage and default
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// user_pref(pref_name, user_value) : Set a user preference
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// lock_pref(pref_name) : Lock a preference (prevent it from being modifyed by user)
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// </font>
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*/
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PR_EXTERN(int)
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PREF_ReadUserJSFile(char *filename);
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/* LI_STUFF read in an li prefs file and give it a name- preobably temporary */
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PR_EXTERN(int)
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PREF_ReadLIJSFile(char *filename);
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PR_EXTERN(int)
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PREF_Init(char *filename);
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PR_EXTERN(int)
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PREF_GetConfigContext(JSContext **js_context);
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PR_EXTERN(int)
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PREF_GetGlobalConfigObject(JSObject **js_object);
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PR_EXTERN(int)
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PREF_GetPrefConfigObject(JSObject **js_object);
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/*
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// Cleanup should be called at program exit to free the
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// list of registered callbacks.
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*/
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PR_EXTERN(void)
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PREF_Cleanup();
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/*
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// <font color=blue>
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// Given a path to a local Lock file, unobscures the file (not implemented yet)
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// and verifies the MD5 hash. Returns PREF_BAD_LOCKFILE if hash failed;
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// otherwise, evaluates the contents of the file as a JS buffer.
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// </font>
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*/
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PR_EXTERN(int)
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PREF_ReadLockFile(const char *filename);
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/*
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// <font color=blue>
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// Pass an arbitrary JS buffer to be evaluated in the Preference context.
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// On startup modules will want to setup their preferences with reasonable
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// defaults. For example netlib might call with a buffer of:
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//
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// pref("network.tcpbufsize",4096);
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// pref("network.max_connections", 4);
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// pref("network.proxy.http_host", "");
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// pref("network.proxy.http_port". 0);
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// ...etc...
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//
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// This routine generates callbacks to functions registered with
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// PREF_RegisterCallback() for any user values that have changed.
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// </font>
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*/
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PR_EXTERN(int)
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PREF_EvaluateJSBuffer(const char * js_buffer, size_t length);
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/*
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// Like the above but does not generate callbacks.
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*/
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PR_EXTERN(int)
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PREF_QuietEvaluateJSBuffer(const char * js_buffer, size_t length);
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/*
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// Like the above but does not generate callbacks and executes in scope of global config object
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*/
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PR_EXTERN(int)
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PREF_QuietEvaluateJSBufferWithGlobalScope(const char * js_buffer, size_t length);
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/*
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// This routine is newer than the above which are not being called externally,
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// as far as I know. The following is used from mkautocf to evaluate a
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// config URL file with callbacks.
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*/
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PR_EXTERN(JSBool)
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PREF_EvaluateConfigScript(const char * js_buffer, size_t length,
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const char* filename, XP_Bool bGlobalContext, XP_Bool bCallbacks);
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/*
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// <font color=blue>
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// Error codes
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// </font>
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*/
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enum {
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PREF_OUT_OF_MEMORY = -5,
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PREF_TYPE_CHANGE_ERR = -4,
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PREF_NOT_INITIALIZED = -3,
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PREF_BAD_LOCKFILE = -2,
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PREF_ERROR = -1,
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PREF_NOERROR = 0,
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PREF_OK = 0, /* same as PREF_NOERROR */
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PREF_VALUECHANGED = 1
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};
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/*
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// <font color=blue>
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// Set the various types of preferences. These functions take a dotted
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// notation of the preference name (e.g. "browser.startup.homepage").
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// Note that this will cause the preference to be saved to the file if
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// it is different from the default. In other words, these are used
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// to set the _user_ preferences.
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// Each set returns PREF_VALUECHANGED if the user value changed
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// (triggering a callback), or PREF_NOERROR if the value was unchanged.
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// </font>
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*/
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PR_EXTERN(int) PREF_SetCharPref(const char *pref,const char* value);
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PR_EXTERN(int) PREF_SetIntPref(const char *pref,int32 value);
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PR_EXTERN(int) PREF_SetBoolPref(const char *pref,XP_Bool value);
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PR_EXTERN(int) PREF_SetBinaryPref(const char *pref,void * value, long size);
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PR_EXTERN(int) PREF_SetColorPref(const char *pref_name, uint8 red, uint8 green, uint8 blue);
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PR_EXTERN(int) PREF_SetColorPrefDWord(const char *pref_name, uint32 colorref);
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PR_EXTERN(int) PREF_SetRectPref(const char *pref_name, int16 left, int16 top, int16 right, int16 bottom);
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/*
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// <font color=blue>
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// Set the default for various types of preferences. These functions take a dotted
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// notation of the preference name (e.g. "browser.startup.homepage")
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// This will only affect the program behavior if the user does not have a value
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// saved over it for the particular preference. In addition, these will never
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// be saved out to disk.
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// </font>
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*/
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PR_EXTERN(int) PREF_SetDefaultCharPref(const char *pref,const char* value);
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PR_EXTERN(int) PREF_SetDefaultIntPref(const char *pref,int32 value);
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PR_EXTERN(int) PREF_SetDefaultBoolPref(const char *pref,XP_Bool value);
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PR_EXTERN(int) PREF_SetDefaultBinaryPref(const char *pref,void * value, long size);
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PR_EXTERN(int) PREF_SetDefaultColorPref(const char *pref_name, uint8 red, uint8 green, uint8 blue);
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PR_EXTERN(int) PREF_SetDefaultRectPref(const char *pref_name, int16 left, int16 top, int16 right, int16 bottom);
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/*
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// <font color=blue>
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// Get the various types of preferences. These functions take a dotted
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// notation of the preference name (e.g. "browser.startup.homepage")
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//
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// They also take a pointer to fill in with the return value and return an
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// error value. At the moment, this is simply an int but it may
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// be converted to an enum once the global error strategy is worked out.
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// In addition, the GetChar and GetBinary versions take an (int *) which
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// should contain the length of the buffer which is passed to be filled
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// in. If the length passed in is 0, the function will not copy the
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// preference but will instead return the length necessary for the buffer,
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// including null terminator.
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//
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// They will perform conversion if the type doesn't match what was requested.
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// (if it is reasonably possible)
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// </font>
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*/
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PR_EXTERN(int) PREF_GetCharPref(const char *pref, char * return_buf, int * buf_length);
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PR_EXTERN(int) PREF_GetIntPref(const char *pref, int32 * return_int);
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PR_EXTERN(int) PREF_GetBoolPref(const char *pref, XP_Bool * return_val);
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PR_EXTERN(int) PREF_GetBinaryPref(const char *pref, void * return_val, int * buf_length);
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PR_EXTERN(int) PREF_GetColorPref(const char *pref_name, uint8 *red, uint8 *green, uint8 *blue);
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PR_EXTERN(int) PREF_GetColorPrefDWord(const char *pref_name, uint32 *colorref);
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PR_EXTERN(int) PREF_GetRectPref(const char *pref_name, int16 *left, int16 *top, int16 *right, int16 *bottom);
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/*
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// <font color=blue>
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// These functions are similar to the above "Get" version with the significant
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// difference that the preference module will alloc the memory (e.g. XP_STRDUP) and
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// the caller will need to be responsible for freeing it...
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// </font>
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*/
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PR_EXTERN(int) PREF_CopyCharPref(const char *pref, char ** return_buf);
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PR_EXTERN(int) PREF_CopyBinaryPref(const char *pref_name, void ** return_value, int *size);
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PR_EXTERN(int) PREF_CopyDefaultCharPref( const char *pref_name, char ** return_buffer );
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PR_EXTERN(int) PREF_CopyDefaultBinaryPref(const char *pref, void ** return_val, int * size);
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/*
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// <font color=blue>
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// Get and set encoded full file/directory pathname strings
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// (i.e. file URLs without the file:// part).
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// On Windows and Unix, these are just stored as string preferences.
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// On Mac, paths should be stored as aliases. These calls convert
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// between paths and aliases flattened into binary strings.
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// </font>
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*/
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PR_EXTERN(int) PREF_CopyPathPref(const char *pref, char ** return_buf);
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PR_EXTERN(int) PREF_SetPathPref(const char *pref_name, const char *path, XP_Bool set_default);
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/*
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// <font color=blue>
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// Same as the previous "Get" functions but will always return the
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// default value regardless of what the user has set. These are designed
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// to be used by functions which "reset" the preferences
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//
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// </font>
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*/
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PR_EXTERN(int) PREF_GetDefaultCharPref(const char *pref, char * return_buf, int * buf_length);
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PR_EXTERN(int) PREF_GetDefaultIntPref(const char *pref, int32 * return_int);
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PR_EXTERN(int) PREF_GetDefaultBoolPref(const char *pref, XP_Bool * return_val);
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PR_EXTERN(int) PREF_GetDefaultBinaryPref(const char *pref, void * return_val, int * buf_length);
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PR_EXTERN(int) PREF_GetDefaultColorPref(const char *pref_name, uint8 *red, uint8 *green, uint8 *blue);
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PR_EXTERN(int) PREF_GetDefaultColorPrefDWord(const char *pref_name, uint32 *colorref);
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PR_EXTERN(int) PREF_GetDefaultRectPref(const char *pref_name, int16 *left, int16 *top, int16 *right, int16 *bottom);
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/*
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// <font color=blue>
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// Administration Kit support
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//
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// These fetch a given configuration parameter.
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// If the parameter is not defined, an error code will be returned;
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// a JavaScript error will not be generated (unlike the above Get routines).
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//
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// IndexConfig fetches an indexed button or menu string, e.g.
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// PREF_CopyIndexConfigString( "menu.help.item", 3, "label", &buf );
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// to fetch the label of Help menu item 3.
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// The caller is responsible for freeing the returned string.
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// </font>
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*/
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PR_EXTERN(int) PREF_CopyConfigString(const char *obj_name, char **return_buffer);
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PR_EXTERN(int) PREF_CopyIndexConfigString(const char *obj_name, int index,
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const char *field, char **return_buffer);
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PR_EXTERN(int) PREF_GetConfigInt(const char *obj_name, int32 *return_int);
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PR_EXTERN(int) PREF_GetConfigBool(const char *obj_name, XP_Bool *return_bool);
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/* OLD:: */PR_EXTERN(int) PREF_GetConfigString(const char *obj_name, char * return_buffer, int size,
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int index, const char *field);
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/*
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// <font color=blue>
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// XP_Bool funtion that returns whether or not the preference is locked and therefore
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// cannot be changed.
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// </font>
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*/
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PR_EXTERN(XP_Bool) PREF_PrefIsLocked(const char *pref_name);
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PR_EXTERN(int) PREF_GetPrefType(const char *pref_name);
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/*
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// <font color=blue>
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// Cause the preference file to be written to disk
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// </font>
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*/
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PR_EXTERN(int) PREF_SavePrefFile(void);
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PR_EXTERN(int) PREF_SavePrefFileAs(const char *filename);
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/* LI_STUFF */
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PR_EXTERN(int) PREF_SaveLIPrefFile(const char *filename);
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/*
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* Called to handle the "about:config" command.
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* Currently dumps out some debugging information.
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*/
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PR_EXTERN(char *) PREF_AboutConfig();
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/*
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* Delete a branch of the tree
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*/
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PR_EXTERN(int) PREF_DeleteBranch(const char *branch_name);
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/*
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* Clears the given pref (reverts it to its default value)
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*/
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PR_EXTERN(int) PREF_ClearUserPref(const char *pref_name);
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/*
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* Creates an iterator over the children of a node. Sample code:
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char* children;
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if ( PREF_CreateChildList("mime", &children) == 0 )
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{
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int index = 0;
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while (char* child = PREF_NextChild(children, &index)) {
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...
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}
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XP_FREE(children);
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}
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* e.g. subsequent calls to Next() return
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* "mime.image_gif", then
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* "mime.image_jpeg", etc.
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*/
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PR_EXTERN(int) PREF_CreateChildList(const char* parent_node, char **child_list);
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PR_EXTERN(char*) PREF_NextChild(char *child_list, int *index);
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/*
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// <font color=blue>
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// The callback function will get passed the pref_node which triggered the call
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// and the void * instance_data which was passed to the register callback function.
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// Return a non-zero result to pass an error up to the caller.
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// </font>
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*/
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typedef int (*PrefChangedFunc) (const char *, void *);
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/*
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// <font color=blue>
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// Register a callback. This takes a node in the preference tree and will
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// call the callback function if anything below that node is modified.
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// Unregister returns PREF_NOERROR if a callback was found that
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// matched all the parameters; otherwise it returns PREF_ERROR.
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// </font>
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*/
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PR_EXTERN(void) PREF_RegisterCallback( const char* domain,
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PrefChangedFunc callback, void* instance_data );
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PR_EXTERN(int) PREF_UnregisterCallback( const char* domain,
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PrefChangedFunc callback, void* instance_data );
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/*
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// Front ends implement to determine whether AutoAdmin library is installed.
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*/
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PR_EXTERN(XP_Bool) PREF_IsAutoAdminEnabled();
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#ifdef XP_UNIX
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struct fe_icon_data;
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typedef void* XmStringPtr;
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typedef void* KeySymPtr;
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PR_EXTERN(void) PREF_AlterSplashIcon(struct fe_icon_data*);
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PR_EXTERN(XP_Bool) PREF_GetLabelAndMnemonic(char*, char**, XmStringPtr xmstring, KeySymPtr keysym);
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PR_EXTERN(XP_Bool) PREF_GetUrl(char*, char**);
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#endif
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NSPR_END_EXTERN_C
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#endif
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