1/*
2 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB.  If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20#ifndef SVGStaticPropertyTearOff_h
21#define SVGStaticPropertyTearOff_h
22
23#if ENABLE(SVG)
24#include "SVGPropertyTearOff.h"
25
26namespace WebCore {
27
28#if COMPILER(MSVC)
29// UpdateMethod is 12 bytes. We have to pack to a size greater than or equal to that to avoid an
30// alignment warning (C4121). 16 is the next-largest size allowed for packing, so we use that.
31#pragma pack(push, 16)
32#endif
33template<typename ContextElement, typename PropertyType>
34class SVGStaticPropertyTearOff : public SVGPropertyTearOff<PropertyType> {
35public:
36    typedef SVGStaticPropertyTearOff<ContextElement, PropertyType> Self;
37    typedef void (ContextElement::*UpdateMethod)();
38
39    // Used for non-animated POD types that are not associated with a SVGAnimatedProperty object, nor with a XML DOM attribute
40    // (for example: SVGSVGElement::currentTranslate).
41    static PassRefPtr<Self> create(ContextElement* contextElement, PropertyType& value, UpdateMethod update)
42    {
43        ASSERT(contextElement);
44        return adoptRef(new Self(contextElement, value, update));
45    }
46
47    virtual void commitChange() { (m_contextElement.get()->*m_update)(); }
48
49private:
50    SVGStaticPropertyTearOff(ContextElement* contextElement, PropertyType& value, UpdateMethod update)
51        : SVGPropertyTearOff<PropertyType>(0, UndefinedRole, value)
52        , m_update(update)
53        , m_contextElement(contextElement)
54    {
55    }
56
57    UpdateMethod m_update;
58    RefPtr<ContextElement> m_contextElement;
59};
60#if COMPILER(MSVC)
61#pragma pack(pop)
62#endif
63
64}
65
66#endif // ENABLE(SVG)
67#endif // SVGStaticPropertyTearOff_h
68