30 lines
913 B
C++
30 lines
913 B
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_layers_DoubleTapToZoom_h
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#define mozilla_layers_DoubleTapToZoom_h
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#include "Units.h"
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class nsIDocument;
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template<class T> class nsCOMPtr;
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namespace mozilla {
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namespace layers {
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/**
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* For a double tap at |aPoint|, return the rect to which the browser
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* should zoom in response, or an empty rect if the browser should zoom out.
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* |aDocument| should be the root content document for the content that was
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* tapped.
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*/
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CSSRect CalculateRectToZoomTo(const nsCOMPtr<nsIDocument>& aRootContentDocument,
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const CSSPoint& aPoint);
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}
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}
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#endif /* mozilla_layers_DoubleTapToZoom_h */
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