1 files changed, 42 insertions, 0 deletions
diff --git a/widget/gtk/CompositorWidgetChild.cpp b/widget/gtk/CompositorWidgetChild.cpp
new file mode 100644
index 0000000000..ba51dda7a5
--- /dev/null
+++ b/widget/gtk/CompositorWidgetChild.cpp
@@ -0,0 +1,42 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 "CompositorWidgetChild.h"
+#include "mozilla/Unused.h"
+#include "gfxPlatform.h"
+
+namespace mozilla {
+namespace widget {
+
+CompositorWidgetChild::CompositorWidgetChild(
+    RefPtr<CompositorVsyncDispatcher> aVsyncDispatcher,
+    RefPtr<CompositorWidgetVsyncObserver> aVsyncObserver,
+    const CompositorWidgetInitData&)
+    : mVsyncDispatcher(aVsyncDispatcher), mVsyncObserver(aVsyncObserver) {
+  MOZ_ASSERT(XRE_IsParentProcess());
+  MOZ_ASSERT(!gfxPlatform::IsHeadless());
+}
+
+CompositorWidgetChild::~CompositorWidgetChild() = default;
+
+bool CompositorWidgetChild::Initialize() { return true; }
+
+mozilla::ipc::IPCResult CompositorWidgetChild::RecvObserveVsync() {
+  mVsyncDispatcher->SetCompositorVsyncObserver(mVsyncObserver);
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult CompositorWidgetChild::RecvUnobserveVsync() {
+  mVsyncDispatcher->SetCompositorVsyncObserver(nullptr);
+  return IPC_OK();
+}
+
+void CompositorWidgetChild::NotifyClientSizeChanged(
+    const LayoutDeviceIntSize& aClientSize) {
+  Unused << SendNotifyClientSizeChanged(aClientSize);
+}
+
+}  // namespace widget
+}  // namespace mozilla