1 files changed, 113 insertions, 0 deletions
diff --git a/gfx/layers/ipc/APZChild.cpp b/gfx/layers/ipc/APZChild.cpp
new file mode 100644
index 0000000000..00146ac59a
--- /dev/null
+++ b/gfx/layers/ipc/APZChild.cpp
@@ -0,0 +1,113 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 "mozilla/layers/APZChild.h"
+#include "mozilla/layers/GeckoContentController.h"
+
+#include "mozilla/dom/BrowserChild.h"
+#include "mozilla/layers/APZCCallbackHelper.h"
+
+#include "InputData.h"  // for InputData
+
+namespace mozilla {
+namespace layers {
+
+APZChild::APZChild(RefPtr<GeckoContentController> aController)
+    : mController(aController) {
+  MOZ_ASSERT(mController);
+}
+
+APZChild::~APZChild() {
+  if (mAPZTaskRunnable) {
+    mAPZTaskRunnable->Revoke();
+    mAPZTaskRunnable = nullptr;
+  }
+  if (mController) {
+    mController->Destroy();
+    mController = nullptr;
+  }
+}
+
+mozilla::ipc::IPCResult APZChild::RecvLayerTransforms(
+    nsTArray<MatrixMessage>&& aTransforms) {
+  mController->NotifyLayerTransforms(std::move(aTransforms));
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult APZChild::RecvRequestContentRepaint(
+    const RepaintRequest& aRequest) {
+  MOZ_ASSERT(mController->IsRepaintThread());
+
+  EnsureAPZTaskRunnable();
+
+  mAPZTaskRunnable->QueueRequest(aRequest);
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult APZChild::RecvUpdateOverscrollVelocity(
+    const ScrollableLayerGuid& aGuid, const float& aX, const float& aY,
+    const bool& aIsRootContent) {
+  mController->UpdateOverscrollVelocity(aGuid, aX, aY, aIsRootContent);
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult APZChild::RecvUpdateOverscrollOffset(
+    const ScrollableLayerGuid& aGuid, const float& aX, const float& aY,
+    const bool& aIsRootContent) {
+  mController->UpdateOverscrollOffset(aGuid, aX, aY, aIsRootContent);
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult APZChild::RecvNotifyMozMouseScrollEvent(
+    const ViewID& aScrollId, const nsString& aEvent) {
+  mController->NotifyMozMouseScrollEvent(aScrollId, aEvent);
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult APZChild::RecvNotifyAPZStateChange(
+    const ScrollableLayerGuid& aGuid, const APZStateChange& aChange,
+    const int& aArg, Maybe<uint64_t> aInputBlockId) {
+  mController->NotifyAPZStateChange(aGuid, aChange, aArg, aInputBlockId);
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult APZChild::RecvNotifyFlushComplete() {
+  MOZ_ASSERT(mController->IsRepaintThread());
+  EnsureAPZTaskRunnable();
+
+  mAPZTaskRunnable->QueueFlushCompleteNotification();
+
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult APZChild::RecvNotifyAsyncScrollbarDragInitiated(
+    const uint64_t& aDragBlockId, const ViewID& aScrollId,
+    const ScrollDirection& aDirection) {
+  mController->NotifyAsyncScrollbarDragInitiated(aDragBlockId, aScrollId,
+                                                 aDirection);
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult APZChild::RecvNotifyAsyncScrollbarDragRejected(
+    const ViewID& aScrollId) {
+  mController->NotifyAsyncScrollbarDragRejected(aScrollId);
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult APZChild::RecvNotifyAsyncAutoscrollRejected(
+    const ViewID& aScrollId) {
+  mController->NotifyAsyncAutoscrollRejected(aScrollId);
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult APZChild::RecvDestroy() {
+  // mController->Destroy will be called in the destructor
+  PAPZChild::Send__delete__(this);
+  return IPC_OK();
+}
+
+}  // namespace layers
+}  // namespace mozilla