1 files changed, 123 insertions, 0 deletions
diff --git a/gfx/layers/apz/util/ContentProcessController.cpp b/gfx/layers/apz/util/ContentProcessController.cpp
new file mode 100644
index 0000000000..16a6c301c3
--- /dev/null
+++ b/gfx/layers/apz/util/ContentProcessController.cpp
@@ -0,0 +1,123 @@
+/* -*- 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 "ContentProcessController.h"
+
+#include "mozilla/PresShell.h"
+#include "mozilla/dom/BrowserChild.h"
+#include "mozilla/layers/APZCCallbackHelper.h"
+#include "mozilla/layers/APZChild.h"
+#include "mozilla/layers/DoubleTapToZoom.h"
+#include "nsIContentInlines.h"
+
+#include "InputData.h"  // for InputData
+
+namespace mozilla {
+namespace layers {
+
+ContentProcessController::ContentProcessController(
+    const RefPtr<dom::BrowserChild>& aBrowser)
+    : mBrowser(aBrowser) {
+  MOZ_ASSERT(mBrowser);
+}
+
+void ContentProcessController::NotifyLayerTransforms(
+    nsTArray<MatrixMessage>&& aTransforms) {
+  // This should never get called
+  MOZ_ASSERT(false);
+}
+
+void ContentProcessController::RequestContentRepaint(
+    const RepaintRequest& aRequest) {
+  if (mBrowser) {
+    mBrowser->UpdateFrame(aRequest);
+  }
+}
+
+void ContentProcessController::HandleTap(
+    TapType aType, const LayoutDevicePoint& aPoint, Modifiers aModifiers,
+    const ScrollableLayerGuid& aGuid, uint64_t aInputBlockId,
+    const Maybe<DoubleTapToZoomMetrics>& aMetrics) {
+  // This should never get called
+  MOZ_ASSERT(false);
+}
+
+void ContentProcessController::NotifyPinchGesture(
+    PinchGestureInput::PinchGestureType aType, const ScrollableLayerGuid& aGuid,
+    const LayoutDevicePoint& aFocusPoint, LayoutDeviceCoord aSpanChange,
+    Modifiers aModifiers) {
+  // This should never get called
+  MOZ_ASSERT_UNREACHABLE("Unexpected message to content process");
+}
+
+void ContentProcessController::NotifyAPZStateChange(
+    const ScrollableLayerGuid& aGuid, APZStateChange aChange, int aArg,
+    Maybe<uint64_t> aInputBlockId) {
+  if (mBrowser) {
+    mBrowser->NotifyAPZStateChange(aGuid.mScrollId, aChange, aArg,
+                                   aInputBlockId);
+  }
+}
+
+void ContentProcessController::NotifyMozMouseScrollEvent(
+    const ScrollableLayerGuid::ViewID& aScrollId, const nsString& aEvent) {
+  if (mBrowser) {
+    APZCCallbackHelper::NotifyMozMouseScrollEvent(aScrollId, aEvent);
+  }
+}
+
+void ContentProcessController::NotifyFlushComplete() {
+  if (mBrowser) {
+    RefPtr<PresShell> presShell = mBrowser->GetTopLevelPresShell();
+    APZCCallbackHelper::NotifyFlushComplete(presShell);
+  }
+}
+
+void ContentProcessController::NotifyAsyncScrollbarDragInitiated(
+    uint64_t aDragBlockId, const ScrollableLayerGuid::ViewID& aScrollId,
+    ScrollDirection aDirection) {
+  APZCCallbackHelper::NotifyAsyncScrollbarDragInitiated(aDragBlockId, aScrollId,
+                                                        aDirection);
+}
+
+void ContentProcessController::NotifyAsyncScrollbarDragRejected(
+    const ScrollableLayerGuid::ViewID& aScrollId) {
+  APZCCallbackHelper::NotifyAsyncScrollbarDragRejected(aScrollId);
+}
+
+void ContentProcessController::NotifyAsyncAutoscrollRejected(
+    const ScrollableLayerGuid::ViewID& aScrollId) {
+  APZCCallbackHelper::NotifyAsyncAutoscrollRejected(aScrollId);
+}
+
+void ContentProcessController::CancelAutoscroll(
+    const ScrollableLayerGuid& aGuid) {
+  // This should never get called
+  MOZ_ASSERT_UNREACHABLE("Unexpected message to content process");
+}
+
+void ContentProcessController::NotifyScaleGestureComplete(
+    const ScrollableLayerGuid& aGuid, float aScale) {
+  // This should never get called
+  MOZ_ASSERT_UNREACHABLE("Unexpected message to content process");
+}
+
+bool ContentProcessController::IsRepaintThread() { return NS_IsMainThread(); }
+
+void ContentProcessController::DispatchToRepaintThread(
+    already_AddRefed<Runnable> aTask) {
+  NS_DispatchToMainThread(std::move(aTask));
+}
+
+PresShell* ContentProcessController::GetTopLevelPresShell() const {
+  if (!mBrowser) {
+    return nullptr;
+  }
+  return mBrowser->GetTopLevelPresShell();
+}
+
+}  // namespace layers
+}  // namespace mozilla