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/*
* Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
* Copyright (C) 2014 Samsung Electronics. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_SVG_SVG_ZOOM_AND_PAN_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_SVG_SVG_ZOOM_AND_PAN_H_
#include "third_party/blink/renderer/core/dom/qualified_name.h"
#include "third_party/blink/renderer/core/svg_names.h"
namespace blink {
class ExceptionState;
enum SVGZoomAndPanType {
kSVGZoomAndPanUnknown = 0,
kSVGZoomAndPanDisable,
kSVGZoomAndPanMagnify
};
class SVGZoomAndPan {
public:
// Forward declare enumerations in the W3C naming scheme, for IDL generation.
enum {
kSvgZoomandpanUnknown = kSVGZoomAndPanUnknown,
kSvgZoomandpanDisable = kSVGZoomAndPanDisable,
kSvgZoomandpanMagnify = kSVGZoomAndPanMagnify
};
virtual ~SVGZoomAndPan() = default;
static bool IsKnownAttribute(const QualifiedName&);
static SVGZoomAndPanType ParseFromNumber(unsigned short number) {
if (!number || number > kSVGZoomAndPanMagnify)
return kSVGZoomAndPanUnknown;
return static_cast<SVGZoomAndPanType>(number);
}
bool ParseZoomAndPan(const LChar*& start, const LChar* end);
bool ParseZoomAndPan(const UChar*& start, const UChar* end);
bool ParseAttribute(const QualifiedName& name, const AtomicString& value) {
if (name == SVGNames::zoomAndPanAttr) {
zoom_and_pan_ = kSVGZoomAndPanUnknown;
if (!value.IsEmpty()) {
if (value.Is8Bit()) {
const LChar* start = value.Characters8();
ParseZoomAndPan(start, start + value.length());
} else {
const UChar* start = value.Characters16();
ParseZoomAndPan(start, start + value.length());
}
}
return true;
}
return false;
}
// JS API
SVGZoomAndPanType zoomAndPan() const { return zoom_and_pan_; }
virtual void setZoomAndPan(unsigned short value) {
zoom_and_pan_ = ParseFromNumber(value);
}
virtual void setZoomAndPan(unsigned short value, ExceptionState&) {
setZoomAndPan(value);
}
protected:
SVGZoomAndPan();
void ResetZoomAndPan();
private:
SVGZoomAndPanType zoom_and_pan_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_SVG_SVG_ZOOM_AND_PAN_H_
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