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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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65
layout/base/GeometryUtils.h Normal file
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/* -*- 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_GEOMETRYUTILS_H_
#define MOZILLA_GEOMETRYUTILS_H_
#include "mozilla/ErrorResult.h"
#include "nsTArray.h"
#include "nsCOMPtr.h"
/**
* This file defines utility functions for converting between layout
* coordinate systems.
*/
class nsINode;
namespace mozilla {
namespace dom {
struct BoxQuadOptions;
struct ConvertCoordinateOptions;
class DOMQuad;
class DOMRectReadOnly;
class DOMPoint;
struct DOMPointInit;
class OwningTextOrElementOrDocument;
class TextOrElementOrDocument;
} // namespace dom
typedef dom::TextOrElementOrDocument GeometryNode;
typedef dom::OwningTextOrElementOrDocument OwningGeometryNode;
/**
* Computes quads for aNode using aOptions, according to GeometryUtils.getBoxQuads.
* May set an error in aRv.
*/
void GetBoxQuads(nsINode* aNode,
const dom::BoxQuadOptions& aOptions,
nsTArray<RefPtr<dom::DOMQuad> >& aResult,
ErrorResult& aRv);
already_AddRefed<dom::DOMQuad>
ConvertQuadFromNode(nsINode* aTo, dom::DOMQuad& aQuad,
const GeometryNode& aFrom,
const dom::ConvertCoordinateOptions& aOptions,
ErrorResult& aRv);
already_AddRefed<dom::DOMQuad>
ConvertRectFromNode(nsINode* aTo, dom::DOMRectReadOnly& aRect,
const GeometryNode& aFrom,
const dom::ConvertCoordinateOptions& aOptions,
ErrorResult& aRv);
already_AddRefed<dom::DOMPoint>
ConvertPointFromNode(nsINode* aTo, const dom::DOMPointInit& aPoint,
const GeometryNode& aFrom,
const dom::ConvertCoordinateOptions& aOptions,
ErrorResult& aRv);
} // namespace mozilla
#endif /* MOZILLA_GEOMETRYUTILS_H_ */