From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- gfx/layers/apz/src/AndroidVelocityTracker.h | 42 +++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 gfx/layers/apz/src/AndroidVelocityTracker.h (limited to 'gfx/layers/apz/src/AndroidVelocityTracker.h') diff --git a/gfx/layers/apz/src/AndroidVelocityTracker.h b/gfx/layers/apz/src/AndroidVelocityTracker.h new file mode 100644 index 0000000000..40e346a9ea --- /dev/null +++ b/gfx/layers/apz/src/AndroidVelocityTracker.h @@ -0,0 +1,42 @@ +/* -*- 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/. */ + +#ifndef mozilla_layers_AndroidVelocityTracker_h +#define mozilla_layers_AndroidVelocityTracker_h + +#include +#include + +#include "Axis.h" +#include "mozilla/Attributes.h" +#include "mozilla/Maybe.h" +#include "nsTArray.h" + +namespace mozilla { +namespace layers { + +class AndroidVelocityTracker : public VelocityTracker { + public: + explicit AndroidVelocityTracker(); + void StartTracking(ParentLayerCoord aPos, TimeStamp aTimestamp) override; + Maybe AddPosition(ParentLayerCoord aPos, + TimeStamp aTimestamp) override; + Maybe ComputeVelocity(TimeStamp aTimestamp) override; + void Clear() override; + + private: + // A queue of (timestamp, position) pairs; these are the historical + // positions at the given timestamps. + nsTArray> mHistory; + // The last time an event was added to the tracker, or the null moment if no + // events have been added. + TimeStamp mLastEventTime; +}; + +} // namespace layers +} // namespace mozilla + +#endif -- cgit v1.2.3