michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef MOZILLA_GEOMETRYUTILS_H_
michael@0: #define MOZILLA_GEOMETRYUTILS_H_
michael@0: 
michael@0: #include "mozilla/ErrorResult.h"
michael@0: #include "nsTArray.h"
michael@0: #include "nsCOMPtr.h"
michael@0: 
michael@0: /**
michael@0:  * This file defines utility functions for converting between layout
michael@0:  * coordinate systems.
michael@0:  */
michael@0: 
michael@0: class nsINode;
michael@0: class nsIDocument;
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: namespace dom {
michael@0: struct BoxQuadOptions;
michael@0: struct ConvertCoordinateOptions;
michael@0: class DOMQuad;
michael@0: class DOMRectReadOnly;
michael@0: class DOMPoint;
michael@0: class DOMPointInit;
michael@0: class OwningTextOrElementOrDocument;
michael@0: class TextOrElementOrDocument;
michael@0: }
michael@0: 
michael@0: typedef dom::TextOrElementOrDocument GeometryNode;
michael@0: typedef dom::OwningTextOrElementOrDocument OwningGeometryNode;
michael@0: 
michael@0: /**
michael@0:  * Computes quads for aNode using aOptions, according to GeometryUtils.getBoxQuads.
michael@0:  * May set an error in aRv.
michael@0:  */
michael@0: void GetBoxQuads(nsINode* aNode,
michael@0:                  const dom::BoxQuadOptions& aOptions,
michael@0:                  nsTArray<nsRefPtr<dom::DOMQuad> >& aResult,
michael@0:                  ErrorResult& aRv);
michael@0: 
michael@0: already_AddRefed<dom::DOMQuad>
michael@0: ConvertQuadFromNode(nsINode* aTo, dom::DOMQuad& aQuad,
michael@0:                     const GeometryNode& aFrom,
michael@0:                     const dom::ConvertCoordinateOptions& aOptions,
michael@0:                     ErrorResult& aRv);
michael@0: 
michael@0: already_AddRefed<dom::DOMQuad>
michael@0: ConvertRectFromNode(nsINode* aTo, dom::DOMRectReadOnly& aRect,
michael@0:                     const GeometryNode& aFrom,
michael@0:                     const dom::ConvertCoordinateOptions& aOptions,
michael@0:                     ErrorResult& aRv);
michael@0: 
michael@0: already_AddRefed<dom::DOMPoint>
michael@0: ConvertPointFromNode(nsINode* aTo, const dom::DOMPointInit& aPoint,
michael@0:                      const GeometryNode& aFrom,
michael@0:                      const dom::ConvertCoordinateOptions& aOptions,
michael@0:                      ErrorResult& aRv);
michael@0: 
michael@0: }
michael@0: 
michael@0: #endif /* MOZILLA_GEOMETRYUTILS_H_ */