docshell/base/ChildProcessChannelListener.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=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
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_ChildProcessChannelListener_h
   8 #define mozilla_dom_ChildProcessChannelListener_h
   9
  10 #include <functional>
  11
  12 #include "mozilla/extensions/StreamFilterParent.h"
  13 #include "mozilla/net/NeckoChannelParams.h"
  14 #include "nsDOMNavigationTiming.h"
  15 #include "nsTHashMap.h"
  16 #include "nsIChannel.h"
  17 #include "mozilla/ipc/BackgroundUtils.h"
  18
  19 namespace mozilla::dom {
  20
  21 class ChildProcessChannelListener final {
  22   NS_INLINE_DECL_REFCOUNTING(ChildProcessChannelListener)
  23
  24   using Endpoint = mozilla::ipc::Endpoint<extensions::PStreamFilterParent>;
  25   using Resolver = std::function<void(const nsresult&)>;
  26   using Callback = std::function<nsresult(
  27       nsDocShellLoadState*, nsTArray<Endpoint>&&, nsDOMNavigationTiming*)>;
  28
  29   void RegisterCallback(uint64_t aIdentifier, Callback&& aCallback);
  30
  31   void OnChannelReady(nsDocShellLoadState* aLoadState, uint64_t aIdentifier,
  32                       nsTArray<Endpoint>&& aStreamFilterEndpoints,
  33                       nsDOMNavigationTiming* aTiming, Resolver&& aResolver);
  34
  35   static already_AddRefed<ChildProcessChannelListener> GetSingleton();
  36
  37  private:
  38   ChildProcessChannelListener() = default;
  39   ~ChildProcessChannelListener();
  40   struct CallbackArgs {
  41     RefPtr<nsDocShellLoadState> mLoadState;
  42     nsTArray<Endpoint> mStreamFilterEndpoints;
  43     RefPtr<nsDOMNavigationTiming> mTiming;
  44     Resolver mResolver;
  45   };
  46
  47   // TODO Backtrack.
  48   nsTHashMap<nsUint64HashKey, Callback> mCallbacks;
  49   nsTHashMap<nsUint64HashKey, CallbackArgs> mChannelArgs;
  50 };
  51
  52 }  // namespace mozilla::dom
  53
  54 #endif  // !defined(mozilla_dom_ChildProcessChannelListener_h)