gecko-dev/dom/base/WindowNamedPropertiesHandler.h

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C
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#ifndef mozilla_dom_WindowNamedPropertiesHandler_h
#define mozilla_dom_WindowNamedPropertiesHandler_h
#include "mozilla/dom/DOMJSProxyHandler.h"
namespace mozilla {
namespace dom {
class WindowNamedPropertiesHandler : public BaseDOMProxyHandler
{
public:
constexpr WindowNamedPropertiesHandler()
: BaseDOMProxyHandler(nullptr, /* hasPrototype = */ true)
{
}
virtual bool
getOwnPropDescriptor(JSContext* aCx, JS::Handle<JSObject*> aProxy,
JS::Handle<jsid> aId,
bool /* unused */,
JS::MutableHandle<JS::PropertyDescriptor> aDesc)
const override;
virtual bool
defineProperty(JSContext* aCx, JS::Handle<JSObject*> aProxy,
JS::Handle<jsid> aId,
JS::Handle<JS::PropertyDescriptor> aDesc,
JS::ObjectOpResult &result) const override;
virtual bool
ownPropNames(JSContext* aCx, JS::Handle<JSObject*> aProxy, unsigned flags,
JS::AutoIdVector& aProps) const override;
virtual bool
delete_(JSContext* aCx, JS::Handle<JSObject*> aProxy, JS::Handle<jsid> aId,
JS::ObjectOpResult &aResult) const override;
// No need for getPrototypeIfOrdinary here: window named-properties objects
// have static prototypes, so the version inherited from BaseDOMProxyHandler
// will do the right thing.
virtual bool
preventExtensions(JSContext* aCx, JS::Handle<JSObject*> aProxy,
JS::ObjectOpResult& aResult) const override
{
return aResult.failCantPreventExtensions();
}
virtual bool
isExtensible(JSContext* aCx, JS::Handle<JSObject*> aProxy,
bool* aIsExtensible) const override
{
*aIsExtensible = true;
return true;
}
virtual const char*
className(JSContext *aCx, JS::Handle<JSObject*> aProxy) const override
{
return "WindowProperties";
}
static const WindowNamedPropertiesHandler*
getInstance()
{
static const WindowNamedPropertiesHandler instance;
return &instance;
}
// For Create, aProto is the parent of the interface prototype object of the
// Window we're associated with.
static JSObject*
Create(JSContext *aCx, JS::Handle<JSObject*> aProto);
};
} // namespace dom
} // namespace mozilla
#endif /* mozilla_dom_WindowNamedPropertiesHandler_h */