зеркало из https://github.com/mozilla/gecko-dev.git
128 строки
3.4 KiB
C
128 строки
3.4 KiB
C
/* -*- 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
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "xp_core.h"
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#include "xp_mcom.h"
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#include "jsapi.h"
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#include "hk_private.h"
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/**********************************************
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* These are to configuration functions registered
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* with the new javascript HookConfig object.
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* They are designed to maintain an array of the
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* special hooks with simple booleans to tell
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* if they already exist in the object or not.
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**********************************************/
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/*
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* Called when a new object is added.
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* If the object is a function then we
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* add it to the existence array.
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* NOTE: hk_SetFunctionExistence only keeps track of those functions
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* that are known special javascript hooks.
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*/
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JSBool
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hk_HookObjectAddProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
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{
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JSString *j_str;
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char *str;
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j_str = JS_ValueToString(cx, id);
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str = JS_GetStringBytes(j_str);
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if (JS_TypeOfValue(cx, *vp) == JSTYPE_FUNCTION)
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{
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/*
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* hk_SetFunctionExistence is not allowed to change
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* the contents of str or the wrong function
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* will be added.
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*/
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hk_SetFunctionExistence(str, TRUE);
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}
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return JS_TRUE;
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}
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/*
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* Called when an object is deleted.
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* If the object is a function then we
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* delete it from the existence array.
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* NOTE: hk_SetFunctionExistence only keeps track of those functions
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* that are known special javascript hooks.
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*/
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JSBool
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hk_HookObjectDeleteProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
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{
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JSString *j_str;
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char *str;
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j_str = JS_ValueToString(cx, id);
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str = JS_GetStringBytes(j_str);
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if (JS_TypeOfValue(cx, *vp) == JSTYPE_FUNCTION)
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{
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/*
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* hk_SetFunctionExistence is not allowed to change
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* the contents of str or the wrong function
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* will be deleted.
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*/
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hk_SetFunctionExistence(str, FALSE);
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}
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return JS_TRUE;
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}
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/*
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* Called when an object has a new value set to it.
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* The object could have been a value (like NULL) but
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* now be set to a function. The object could also have once been
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* set to a function and now be set to a non-function type.
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* NOTE: hk_SetFunctionExistence only keeps track of those functions
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* that are known special javascript hooks.
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*/
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JSBool
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hk_HookObjectSetProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
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{
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JSString *j_str;
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char *str;
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j_str = JS_ValueToString(cx, id);
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str = JS_GetStringBytes(j_str);
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/*
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* hk_SetFunctionExistence is not allowed to change
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* the contents of str or the wrong object
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* will be set.
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*/
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if (JS_TypeOfValue(cx, *vp) == JSTYPE_FUNCTION)
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{
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hk_SetFunctionExistence(str, TRUE);
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}
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else
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{
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hk_SetFunctionExistence(str, FALSE);
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}
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return JS_TRUE;
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}
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