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      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 SVGShadowTreeElements_h
     21 #define SVGShadowTreeElements_h
     22 
     23 #if ENABLE(SVG)
     24 #include "SVGGElement.h"
     25 #include "SVGLength.h"
     26 
     27 namespace WebCore {
     28 
     29 class FloatSize;
     30 class SVGUseElement;
     31 
     32 class SVGShadowTreeContainerElement : public SVGGElement {
     33 public:
     34     static PassRefPtr<SVGShadowTreeContainerElement> create(Document*);
     35 
     36     FloatSize containerTranslation() const;
     37     void setContainerOffset(const SVGLength& x, const SVGLength& y)
     38     {
     39         m_xOffset = x;
     40         m_yOffset = y;
     41     }
     42 
     43 protected:
     44     SVGShadowTreeContainerElement(Document*);
     45 
     46 private:
     47     virtual PassRefPtr<Element> cloneElementWithoutAttributesAndChildren() const;
     48     virtual bool isShadowTreeContainerElement() const { return true; }
     49 
     50     SVGLength m_xOffset;
     51     SVGLength m_yOffset;
     52 };
     53 
     54 class SVGShadowTreeRootElement : public SVGShadowTreeContainerElement {
     55 public:
     56     static PassRefPtr<SVGShadowTreeRootElement> create(Document*, SVGUseElement* host);
     57 
     58     void attachElement(PassRefPtr<RenderStyle>, RenderArena*);
     59     void clearSVGShadowHost();
     60 
     61     virtual bool isSVGShadowRoot() const { return true; }
     62 
     63 private:
     64     SVGShadowTreeRootElement(Document*, SVGUseElement* host);
     65 };
     66 
     67 }
     68 
     69 #endif
     70 #endif
     71