tor-browser

The Tor Browser
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GamepadEventChannelChild.cpp (1992B)

      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 file,
      5 * You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 #include "GamepadEventChannelChild.h"
      7 
      8 #include "mozilla/dom/GamepadManager.h"
      9 #include "mozilla/dom/Promise.h"
     10 
     11 namespace mozilla::dom {
     12 
     13 namespace {
     14 
     15 class GamepadUpdateRunnable final : public Runnable {
     16 public:
     17  explicit GamepadUpdateRunnable(const GamepadChangeEvent& aGamepadEvent)
     18      : Runnable("dom::GamepadUpdateRunnable"), mEvent(aGamepadEvent) {}
     19  NS_IMETHOD Run() override {
     20    RefPtr<GamepadManager> svc(GamepadManager::GetService());
     21    if (svc) {
     22      svc->Update(mEvent);
     23    }
     24    return NS_OK;
     25  }
     26 
     27 protected:
     28  GamepadChangeEvent mEvent;
     29 };
     30 
     31 }  // namespace
     32 
     33 already_AddRefed<GamepadEventChannelChild> GamepadEventChannelChild::Create() {
     34  return RefPtr<GamepadEventChannelChild>(new GamepadEventChannelChild())
     35      .forget();
     36 }
     37 
     38 mozilla::ipc::IPCResult GamepadEventChannelChild::RecvGamepadUpdate(
     39    const GamepadChangeEvent& aGamepadEvent) {
     40  DebugOnly<nsresult> rv =
     41      NS_DispatchToMainThread(new GamepadUpdateRunnable(aGamepadEvent));
     42  NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "NS_DispatchToMainThread failed");
     43  return IPC_OK();
     44 }
     45 
     46 void GamepadEventChannelChild::AddPromise(const uint32_t& aID,
     47                                          dom::Promise* aPromise) {
     48  MOZ_ASSERT(!mPromiseList.Contains(aID));
     49  mPromiseList.InsertOrUpdate(aID, RefPtr{aPromise});
     50 }
     51 
     52 mozilla::ipc::IPCResult GamepadEventChannelChild::RecvReplyGamepadPromise(
     53    const uint32_t& aPromiseID) {
     54  RefPtr<dom::Promise> p;
     55  if (!mPromiseList.Get(aPromiseID, getter_AddRefs(p))) {
     56    MOZ_CRASH("We should always have a promise.");
     57  }
     58 
     59  p->MaybeResolve(true);
     60  mPromiseList.Remove(aPromiseID);
     61  return IPC_OK();
     62 }
     63 
     64 }  // namespace mozilla::dom