gecko/dom/bindings/BindingDeclarations.h

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
/* vim: set ts=2 sw=2 et tw=79: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

/**
 * A header for declaring various things that binding implementation headers
 * might need.  The idea is to make binding implementation headers safe to
 * include anywhere without running into include hell like we do with
 * BindingUtils.h
 */
#ifndef mozilla_dom_BindingDeclarations_h__
#define mozilla_dom_BindingDeclarations_h__

#include "nsStringGlue.h"
#include "jsapi.h"
#include "mozilla/Util.h"
#include "nsCOMPtr.h"

namespace mozilla {
namespace dom {

struct MainThreadDictionaryBase
{
protected:
  JSContext* ParseJSON(const nsAString& aJSON,
                       mozilla::Maybe<JSAutoRequest>& aAr,
                       mozilla::Maybe<JSAutoCompartment>& aAc,
                       JS::Value& aVal);
};

struct EnumEntry {
  const char* value;
  size_t length;
};

class NS_STACK_CLASS GlobalObject
{
public:
  GlobalObject(JSContext* aCx, JSObject* aObject);

  nsISupports* Get() const
  {
    return mGlobalObject;
  }

  bool Failed() const
  {
    return !Get();
  }

private:
  js::RootedObject mGlobalJSObject;
  nsISupports* mGlobalObject;
  nsCOMPtr<nsISupports> mGlobalObjectRef;
};

class NS_STACK_CLASS WorkerGlobalObject
{
public:
  WorkerGlobalObject(JSContext* aCx, JSObject* aObject);

  JSObject* Get() const
  {
    return mGlobalJSObject;
  }
  // The context that this returns is not guaranteed to be in the compartment of
  // the object returned from Get(), in fact it's generally in the caller's
  // compartment.
  JSContext* GetContext() const
  {
    return mCx;
  }

  bool Failed() const
  {
    return !Get();
  }

private:
  js::RootedObject mGlobalJSObject;
  JSContext* mCx;
};

} // namespace dom
} // namespace mozilla

#endif // mozilla_dom_BindingDeclarations_h__