DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Implementation

Mercurial (8506e87cec50)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65
/* -*- 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::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 dom
}  // namespace mozilla

#endif /* mozilla_dom_WindowNamedPropertiesHandler_h */