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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 */
#ifndef mozilla_dom_WindowNamedPropertiesHandler_h
#define mozilla_dom_WindowNamedPropertiesHandler_h
#include "mozilla/dom/DOMJSProxyHandler.h"
namespace mozilla::dom {
class WindowNamedPropertiesHandler : public BaseDOMProxyHandler {
constexpr WindowNamedPropertiesHandler()
: BaseDOMProxyHandler(nullptr, /* hasPrototype = */ true) {}
virtual bool getOwnPropDescriptor(
JSContext* aCx, JS::Handle<JSObject*> aProxy, JS::Handle<jsid> aId,
bool /* unused */,
JS::MutableHandle<Maybe<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::MutableHandleVector<jsid> 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 mozilla::dom
#endif /* mozilla_dom_WindowNamedPropertiesHandler_h */