dom/promise/PromiseNativeHandler.h

   1 /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
   2 /* vim: set ts=2 et sw=2 tw=80: */
   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 file,
   5 * You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_PromiseNativeHandler_h
   8 #define mozilla_dom_PromiseNativeHandler_h
   9
  10 #include "nsISupports.h"
  11
  12 namespace mozilla {
  13 namespace dom {
  14
  15 /*
  16  * PromiseNativeHandler allows C++ to react to a Promise being rejected/resolved.
  17  * A PromiseNativeHandler can be appended to a Promise using
  18  * Promise::AppendNativeHandler().
  19  */
  20 class PromiseNativeHandler : public nsISupports
  21 {
  22 public:
  23   // NS_IMPL_ISUPPORTS0 in Promise.cpp.
  24   NS_DECL_ISUPPORTS
  25
  26   virtual ~PromiseNativeHandler()
  27   { }
  28
  29   virtual void
  30   ResolvedCallback(JS::Handle<JS::Value> aValue) = 0;
  31
  32   virtual void
  33   RejectedCallback(JS::Handle<JS::Value> aValue) = 0;
  34 };
  35
  36 } // namespace dom
  37 } // namespace mozilla
  38
  39 #endif // mozilla_dom_PromiseNativeHandler_h