gecko-dev/dom/svg/SVGFragmentIdentifier.h

49 строки
1.5 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 DOM_SVG_SVGFRAGMENTIDENTIFIER_H_
#define DOM_SVG_SVGFRAGMENTIDENTIFIER_H_
#include "nsString.h"
namespace mozilla {
namespace dom {
class Document;
class SVGSVGElement;
} // namespace dom
/**
* Implements support for parsing SVG fragment identifiers
* http://www.w3.org/TR/SVG/linking.html#SVGFragmentIdentifiers
*/
class SVGFragmentIdentifier {
// To prevent the class being instantiated
SVGFragmentIdentifier() = delete;
public:
/**
* Process the SVG fragment identifier, if there is one.
* @return true if we found a valid svgView()-style fragment identifier,
* in which case further processing by the caller can stop. Otherwise return
* false as we may have an ordinary anchor which needs to be :target matched.
*/
static bool ProcessFragmentIdentifier(dom::Document* aDocument,
const nsAString& aAnchorName);
private:
/**
* Parse an SVG ViewSpec and set applicable attributes on the root element.
* @return true if there is a valid ViewSpec
*/
static bool ProcessSVGViewSpec(const nsAString& aViewSpec,
dom::SVGSVGElement* root);
};
} // namespace mozilla
#endif // DOM_SVG_SVGFRAGMENTIDENTIFIER_H_