1 files changed, 70 insertions, 0 deletions
diff --git a/widget/android/AndroidContentController.cpp b/widget/android/AndroidContentController.cpp
new file mode 100644
index 0000000000..c1029fd4a2
--- /dev/null
+++ b/widget/android/AndroidContentController.cpp
@@ -0,0 +1,70 @@
+/* -*- Mode: c++; c-basic-offset: 2; tab-width: 20; indent-tabs-mode: nil; -*-
+ * 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 "AndroidContentController.h"
+
+#include "AndroidBridge.h"
+#include "base/message_loop.h"
+#include "mozilla/layers/APZCCallbackHelper.h"
+#include "mozilla/layers/IAPZCTreeManager.h"
+#include "nsIObserverService.h"
+#include "nsLayoutUtils.h"
+#include "nsWindow.h"
+
+using mozilla::layers::IAPZCTreeManager;
+
+namespace mozilla {
+namespace widget {
+
+void AndroidContentController::Destroy() {
+  mAndroidWindow = nullptr;
+  ChromeProcessController::Destroy();
+}
+
+void AndroidContentController::UpdateOverscrollVelocity(
+    const ScrollableLayerGuid& aGuid, const float aX, const float aY,
+    const bool aIsRootContent) {
+  if (aIsRootContent && mAndroidWindow) {
+    mAndroidWindow->UpdateOverscrollVelocity(aX, aY);
+  }
+}
+
+void AndroidContentController::UpdateOverscrollOffset(
+    const ScrollableLayerGuid& aGuid, const float aX, const float aY,
+    const bool aIsRootContent) {
+  if (aIsRootContent && mAndroidWindow) {
+    mAndroidWindow->UpdateOverscrollOffset(aX, aY);
+  }
+}
+
+void AndroidContentController::NotifyAPZStateChange(
+    const ScrollableLayerGuid& aGuid, APZStateChange aChange, int aArg,
+    Maybe<uint64_t> aInputBlockId) {
+  // This function may get invoked twice, if the first invocation is not on
+  // the main thread then the ChromeProcessController version of this function
+  // will redispatch to the main thread. We want to make sure that our handling
+  // only happens on the main thread.
+  ChromeProcessController::NotifyAPZStateChange(aGuid, aChange, aArg,
+                                                aInputBlockId);
+  if (NS_IsMainThread()) {
+    nsCOMPtr<nsIObserverService> observerService =
+        mozilla::services::GetObserverService();
+    if (aChange ==
+        layers::GeckoContentController::APZStateChange::eTransformEnd) {
+      // This is used by tests to determine when the APZ is done doing whatever
+      // it's doing. XXX generify this as needed when writing additional tests.
+      observerService->NotifyObservers(nullptr, "APZ:TransformEnd", nullptr);
+      observerService->NotifyObservers(nullptr, "PanZoom:StateChange",
+                                       u"NOTHING");
+    } else if (aChange == layers::GeckoContentController::APZStateChange::
+                              eTransformBegin) {
+      observerService->NotifyObservers(nullptr, "PanZoom:StateChange",
+                                       u"PANNING");
+    }
+  }
+}
+
+}  // namespace widget
+}  // namespace mozilla