1 files changed, 29 insertions, 0 deletions
diff --git a/gfx/layers/apz/util/ScrollingInteractionContext.cpp b/gfx/layers/apz/util/ScrollingInteractionContext.cpp
new file mode 100644
index 0000000000..1a92a9eb07
--- /dev/null
+++ b/gfx/layers/apz/util/ScrollingInteractionContext.cpp
@@ -0,0 +1,29 @@
+/* -*- 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 "ScrollingInteractionContext.h"
+
+namespace mozilla::layers {
+
+/*static*/
+bool ScrollingInteractionContext::sScrollingToAnchor = false;
+
+/*static*/
+bool ScrollingInteractionContext::IsScrollingToAnchor() {
+  return sScrollingToAnchor;
+}
+
+ScrollingInteractionContext::ScrollingInteractionContext(
+    bool aScrollingToAnchor)
+    : mOldScrollingToAnchor(sScrollingToAnchor) {
+  sScrollingToAnchor = aScrollingToAnchor;
+}
+
+ScrollingInteractionContext::~ScrollingInteractionContext() {
+  sScrollingToAnchor = mOldScrollingToAnchor;
+}
+
+}  // namespace mozilla::layers