From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- gfx/layers/apz/util/DoubleTapToZoom.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 gfx/layers/apz/util/DoubleTapToZoom.h (limited to 'gfx/layers/apz/util/DoubleTapToZoom.h') diff --git a/gfx/layers/apz/util/DoubleTapToZoom.h b/gfx/layers/apz/util/DoubleTapToZoom.h new file mode 100644 index 000000000..7b8723865 --- /dev/null +++ b/gfx/layers/apz/util/DoubleTapToZoom.h @@ -0,0 +1,29 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* 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_DoubleTapToZoom_h +#define mozilla_layers_DoubleTapToZoom_h + +#include "Units.h" + +class nsIDocument; +template class nsCOMPtr; + +namespace mozilla { +namespace layers { + +/** + * For a double tap at |aPoint|, return the rect to which the browser + * should zoom in response, or an empty rect if the browser should zoom out. + * |aDocument| should be the root content document for the content that was + * tapped. + */ +CSSRect CalculateRectToZoomTo(const nsCOMPtr& aRootContentDocument, + const CSSPoint& aPoint); + +} +} + +#endif /* mozilla_layers_DoubleTapToZoom_h */ -- cgit v1.2.3