1 files changed, 42 insertions, 0 deletions
diff --git a/dom/gamepad/ipc/GamepadEventChannelChild.cpp b/dom/gamepad/ipc/GamepadEventChannelChild.cpp
new file mode 100644
index 000000000..4cdb55a92
--- /dev/null
+++ b/dom/gamepad/ipc/GamepadEventChannelChild.cpp
@@ -0,0 +1,42 @@
+/* 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/. */
+#include "GamepadEventChannelChild.h"
+#include "mozilla/dom/GamepadManager.h"
+
+namespace mozilla {
+namespace dom{
+
+namespace {
+
+class GamepadUpdateRunnable final : public Runnable
+{
+ public:
+  explicit GamepadUpdateRunnable(const GamepadChangeEvent& aGamepadEvent)
+             : mEvent(aGamepadEvent) {}
+  NS_IMETHOD Run() override
+  {
+    RefPtr<GamepadManager> svc(GamepadManager::GetService());
+    if (svc) {
+      svc->Update(mEvent);
+    }
+    return NS_OK;
+  }
+ protected:
+  GamepadChangeEvent mEvent;
+};
+
+} // namespace
+
+bool
+GamepadEventChannelChild::RecvGamepadUpdate(
+                                       const GamepadChangeEvent& aGamepadEvent)
+{
+  DebugOnly<nsresult> rv =
+    NS_DispatchToMainThread(new GamepadUpdateRunnable(aGamepadEvent));
+  NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "NS_DispatchToMainThread failed");
+  return true;
+}
+
+} // namespace dom
+} // namespace mozilla