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-rw-r--r--gfx/layers/apz/src/AsyncDragMetrics.h65
1 files changed, 65 insertions, 0 deletions
diff --git a/gfx/layers/apz/src/AsyncDragMetrics.h b/gfx/layers/apz/src/AsyncDragMetrics.h
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+++ b/gfx/layers/apz/src/AsyncDragMetrics.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set sw=2 ts=8 et 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/. */
+
+#ifndef mozilla_layers_DragMetrics_h
+#define mozilla_layers_DragMetrics_h
+
+#include "FrameMetrics.h"
+
+namespace IPC {
+template <typename T> struct ParamTraits;
+} // namespace IPC
+
+namespace mozilla {
+
+namespace layers {
+
+class AsyncDragMetrics {
+ friend struct IPC::ParamTraits<mozilla::layers::AsyncDragMetrics>;
+
+public:
+ enum DragDirection {
+ NONE,
+ VERTICAL,
+ HORIZONTAL,
+ SENTINEL,
+ };
+
+ // IPC constructor
+ AsyncDragMetrics()
+ : mViewId(0)
+ , mPresShellId(0)
+ , mDragStartSequenceNumber(0)
+ , mScrollbarDragOffset(0)
+ , mDirection(NONE)
+ {}
+
+ AsyncDragMetrics(const FrameMetrics::ViewID& aViewId,
+ uint32_t aPresShellId,
+ uint64_t aDragStartSequenceNumber,
+ CSSIntCoord aScrollbarDragOffset,
+ const CSSIntRect& aScrollTrack,
+ DragDirection aDirection)
+ : mViewId(aViewId)
+ , mPresShellId(aPresShellId)
+ , mDragStartSequenceNumber(aDragStartSequenceNumber)
+ , mScrollbarDragOffset(aScrollbarDragOffset)
+ , mScrollTrack(aScrollTrack)
+ , mDirection(aDirection)
+ {}
+
+ FrameMetrics::ViewID mViewId;
+ uint32_t mPresShellId;
+ uint64_t mDragStartSequenceNumber;
+ CSSIntCoord mScrollbarDragOffset;
+ CSSIntRect mScrollTrack;
+ DragDirection mDirection;
+};
+
+}
+}
+
+#endif