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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 #include "config.h"
     21 
     22 #if ENABLE(SVG)
     23 #include "SVGShadowTreeElements.h"
     24 
     25 #include "Document.h"
     26 #include "FloatSize.h"
     27 #include "RenderObject.h"
     28 #include "SVGNames.h"
     29 #include "SVGUseElement.h"
     30 
     31 namespace WebCore {
     32 
     33 // SVGShadowTreeContainerElement
     34 
     35 SVGShadowTreeContainerElement::SVGShadowTreeContainerElement(Document* document)
     36     : SVGGElement(SVGNames::gTag, document)
     37 {
     38 }
     39 
     40 PassRefPtr<SVGShadowTreeContainerElement> SVGShadowTreeContainerElement::create(Document* document)
     41 {
     42     return adoptRef(new SVGShadowTreeContainerElement(document));
     43 }
     44 
     45 FloatSize SVGShadowTreeContainerElement::containerTranslation() const
     46 {
     47     return FloatSize(m_xOffset.value(this), m_yOffset.value(this));
     48 }
     49 
     50 PassRefPtr<Element> SVGShadowTreeContainerElement::cloneElementWithoutAttributesAndChildren() const
     51 {
     52     return adoptRef(new SVGShadowTreeContainerElement(document()));
     53 }
     54 // SVGShadowTreeRootElement
     55 
     56 inline SVGShadowTreeRootElement::SVGShadowTreeRootElement(Document* document, SVGUseElement* host)
     57     : SVGShadowTreeContainerElement(document)
     58 {
     59     setParent(host);
     60     setInDocument();
     61 }
     62 
     63 PassRefPtr<SVGShadowTreeRootElement> SVGShadowTreeRootElement::create(Document* document, SVGUseElement* host)
     64 {
     65     return adoptRef(new SVGShadowTreeRootElement(document, host));
     66 }
     67 
     68 void SVGShadowTreeRootElement::attachElement(PassRefPtr<RenderStyle> style, RenderArena* arena)
     69 {
     70     ASSERT(svgShadowHost());
     71 
     72     // Create the renderer with the specified style
     73     RenderObject* renderer = createRenderer(arena, style.get());
     74     if (renderer) {
     75         setRenderer(renderer);
     76         renderer->setStyle(style);
     77     }
     78 
     79     // Set these explicitly since this normally happens during an attach()
     80     setAttached();
     81 
     82     // Add the renderer to the render tree
     83     if (renderer)
     84         svgShadowHost()->renderer()->addChild(renderer);
     85 }
     86 
     87 void SVGShadowTreeRootElement::clearSVGShadowHost()
     88 {
     89     setParent(0);
     90 }
     91 
     92 }
     93 
     94 #endif
     95