dom/base/WindowNamedPropertiesHandler.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=2 sw=2 et tw=78: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_WindowNamedPropertiesHandler_h
   8 #define mozilla_dom_WindowNamedPropertiesHandler_h
   9
  10 #include "mozilla/dom/DOMJSProxyHandler.h"
  11
  12 namespace mozilla {
  13 namespace dom {
  14
  15 class WindowNamedPropertiesHandler : public BaseDOMProxyHandler
  16 {
  17 public:
  18   WindowNamedPropertiesHandler() : BaseDOMProxyHandler(nullptr)
  19   {
  20     setHasPrototype(true);
  21   }
  22   virtual bool
  23   preventExtensions(JSContext* aCx, JS::Handle<JSObject*> aProxy) MOZ_OVERRIDE
  24   {
  25     // Throw a TypeError, per WebIDL.
  26     JS_ReportErrorNumber(aCx, js_GetErrorMessage, nullptr,
  27                          JSMSG_CANT_CHANGE_EXTENSIBILITY);
  28     return false;
  29   }
  30   virtual bool
  31   getOwnPropertyDescriptor(JSContext* aCx, JS::Handle<JSObject*> aProxy,
  32                            JS::Handle<jsid> aId,
  33                            JS::MutableHandle<JSPropertyDescriptor> aDesc,
  34                            unsigned aFlags) MOZ_OVERRIDE;
  35   virtual bool
  36   defineProperty(JSContext* aCx, JS::Handle<JSObject*> aProxy,
  37                  JS::Handle<jsid> aId,
  38                  JS::MutableHandle<JSPropertyDescriptor> aDesc) MOZ_OVERRIDE;
  39   virtual bool
  40   getOwnPropertyNames(JSContext* aCx, JS::Handle<JSObject*> aProxy,
  41                       JS::AutoIdVector& aProps) MOZ_OVERRIDE;
  42   virtual bool
  43   delete_(JSContext* aCx, JS::Handle<JSObject*> aProxy, JS::Handle<jsid> aId,
  44           bool* aBp) MOZ_OVERRIDE;
  45   virtual bool
  46   isExtensible(JSContext* aCx, JS::Handle<JSObject*> aProxy,
  47                bool* aIsExtensible) MOZ_OVERRIDE
  48   {
  49     *aIsExtensible = true;
  50     return true;
  51   }
  52   virtual const char*
  53   className(JSContext *aCx, JS::Handle<JSObject*> aProxy) MOZ_OVERRIDE
  54   {
  55     return "WindowProperties";
  56   }
  57
  58   static WindowNamedPropertiesHandler*
  59   getInstance()
  60   {
  61     static WindowNamedPropertiesHandler instance;
  62     return &instance;
  63   }
  64
  65   // For Install, aProto is the proto of the Window we're associated with.
  66   static void
  67   Install(JSContext *aCx, JS::Handle<JSObject*> aProto);
  68 };
  69
  70 } // namespace dom
  71 } // namespace mozilla
  72
  73 #endif /* mozilla_dom_WindowNamedPropertiesHandler_h */