layout/base/GeometryUtils.h
author Gijs Kruitbosch <gijskruitbosch@gmail.com>
Wed, 13 May 2015 22:18:00 +0100
changeset 260491 d5ba1bc97911bc35917c83ce5a92e873af38ec2c
parent 211421 fcf15eb82338c3339cb39066828467b504ccc1a1
child 271831 d47f66ce3822cd4b95c99b3c0b123584486d119c
permissions -rw-r--r--
Bug 1164302 - pocket button gets lost after a restart, r=jaws a=dolske

/* -*- 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;
class nsIDocument;

namespace mozilla {

namespace dom {
struct BoxQuadOptions;
struct ConvertCoordinateOptions;
class DOMQuad;
class DOMRectReadOnly;
class DOMPoint;
struct DOMPointInit;
class OwningTextOrElementOrDocument;
class TextOrElementOrDocument;
}

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<nsRefPtr<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);

}

#endif /* MOZILLA_GEOMETRYUTILS_H_ */