144 lines
4.3 KiB
C
144 lines
4.3 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
#include "xp_core.h"
|
|
#include "xp_mcom.h"
|
|
#include "jsapi.h"
|
|
|
|
#include "hk_private.h"
|
|
|
|
/**********************************************
|
|
* These are to configuration functions registered
|
|
* with the new javascript HookConfig object.
|
|
* They are designed to maintain an array of the
|
|
* special hooks with simple booleans to tell
|
|
* if they already exist in the object or not.
|
|
**********************************************/
|
|
|
|
|
|
/*
|
|
* Called when a new object is added.
|
|
* If the object is a function then we
|
|
* add it to the existence array.
|
|
* NOTE: hk_SetFunctionExistence only keeps track of those functions
|
|
* that are known special javascript hooks.
|
|
*/
|
|
JSBool
|
|
hk_HookObjectAddProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
|
|
{
|
|
JSString *j_str;
|
|
char *str;
|
|
|
|
j_str = JS_ValueToString(cx, id);
|
|
str = JS_GetStringBytes(j_str);
|
|
if (JS_TypeOfValue(cx, *vp) == JSTYPE_FUNCTION)
|
|
{
|
|
/*
|
|
* hk_SetFunctionExistence is not allowed to change
|
|
* the contents of str or the wrong function
|
|
* will be added.
|
|
*/
|
|
hk_SetFunctionExistence(str, TRUE);
|
|
}
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|
|
|
|
/*
|
|
* Called when an object is deleted.
|
|
* If the object is a function then we
|
|
* delete it from the existence array.
|
|
* NOTE: hk_SetFunctionExistence only keeps track of those functions
|
|
* that are known special javascript hooks.
|
|
*/
|
|
JSBool
|
|
hk_HookObjectDeleteProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
|
|
{
|
|
JSString *j_str;
|
|
char *str;
|
|
|
|
j_str = JS_ValueToString(cx, id);
|
|
str = JS_GetStringBytes(j_str);
|
|
if (JS_TypeOfValue(cx, *vp) == JSTYPE_FUNCTION)
|
|
{
|
|
/*
|
|
* hk_SetFunctionExistence is not allowed to change
|
|
* the contents of str or the wrong function
|
|
* will be deleted.
|
|
*/
|
|
hk_SetFunctionExistence(str, FALSE);
|
|
}
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|
|
|
|
/*
|
|
* Called when an object has a new value set to it.
|
|
* The object could have been a value (like NULL) but
|
|
* now be set to a function. The object could also have once been
|
|
* set to a function and now be set to a non-function type.
|
|
* NOTE: hk_SetFunctionExistence only keeps track of those functions
|
|
* that are known special javascript hooks.
|
|
*/
|
|
JSBool
|
|
hk_HookObjectSetProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
|
|
{
|
|
JSString *j_str;
|
|
char *str;
|
|
|
|
j_str = JS_ValueToString(cx, id);
|
|
str = JS_GetStringBytes(j_str);
|
|
/*
|
|
* hk_SetFunctionExistence is not allowed to change
|
|
* the contents of str or the wrong object
|
|
* will be set.
|
|
*/
|
|
if (JS_TypeOfValue(cx, *vp) == JSTYPE_FUNCTION)
|
|
{
|
|
hk_SetFunctionExistence(str, TRUE);
|
|
}
|
|
else
|
|
{
|
|
hk_SetFunctionExistence(str, FALSE);
|
|
}
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|