API/JSContextRef.cpp

   1 // -*- mode: c++; c-basic-offset: 4 -*-
   2 /*
   3  * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #include "config.h"
  28 #include "JSContextRef.h"
  29
  30 #include "APICast.h"
  31 #include "JSCallbackObject.h"
  32 #include "JSClassRef.h"
  33 #include "JSGlobalObject.h"
  34 #include "object.h"
  35 #include <wtf/Platform.h>
  36
  37 using namespace KJS;
  38
  39 JSGlobalContextRef JSGlobalContextCreate(JSClassRef globalObjectClass)
  40 {
  41     JSLock lock;
  42
  43     if (!globalObjectClass) {
  44         JSGlobalObject* globalObject = new JSGlobalObject;
  45         return JSGlobalContextRetain(toGlobalRef(globalObject->globalExec()));
  46     }
  47
  48     JSGlobalObject* globalObject = new JSCallbackObject<JSGlobalObject>(globalObjectClass);
  49     JSGlobalContextRef ctx = toGlobalRef(globalObject->globalExec());
  50     JSValue* prototype = globalObjectClass->prototype(ctx);
  51     if (!prototype)
  52         prototype = jsNull();
  53     globalObject->reset(prototype);
  54     return JSGlobalContextRetain(ctx);
  55 }
  56
  57 JSGlobalContextRef JSGlobalContextRetain(JSGlobalContextRef ctx)
  58 {
  59     JSLock lock;
  60     ExecState* exec = toJS(ctx);
  61     gcProtect(exec->dynamicGlobalObject());
  62     return ctx;
  63 }
  64
  65 void JSGlobalContextRelease(JSGlobalContextRef ctx)
  66 {
  67     JSLock lock;
  68     ExecState* exec = toJS(ctx);
  69     gcUnprotect(exec->dynamicGlobalObject());
  70 }
  71
  72 JSObjectRef JSContextGetGlobalObject(JSContextRef ctx)
  73 {
  74     ExecState* exec = toJS(ctx);
  75     return toRef(exec->dynamicGlobalObject());
  76 }