/* | |
Copyright (C) Research In Motion Limited 2010. 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 | |
aint 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. | |
*/ | |
#include "config.h" | |
#if ENABLE(SVG) | |
#include "RenderSVGShadowTreeRootContainer.h" | |
#include "MouseEvent.h" | |
#include "SVGShadowTreeElements.h" | |
#include "SVGUseElement.h" | |
namespace WebCore { | |
RenderSVGShadowTreeRootContainer::RenderSVGShadowTreeRootContainer(SVGUseElement* node) | |
: RenderSVGTransformableContainer(node) | |
, m_recreateTree(false) | |
{ | |
} | |
RenderSVGShadowTreeRootContainer::~RenderSVGShadowTreeRootContainer() | |
{ | |
if (m_shadowRoot && m_shadowRoot->attached()) | |
m_shadowRoot->detach(); | |
} | |
void RenderSVGShadowTreeRootContainer::updateStyle(Node::StyleChange change) | |
{ | |
if (m_shadowRoot && m_shadowRoot->attached()) | |
m_shadowRoot->recalcStyle(change); | |
} | |
void RenderSVGShadowTreeRootContainer::updateFromElement() | |
{ | |
bool hadExistingTree = m_shadowRoot; | |
SVGUseElement* useElement = static_cast<SVGUseElement*>(node()); | |
if (!m_shadowRoot) { | |
ASSERT(!m_recreateTree); | |
m_shadowRoot = new SVGShadowTreeRootElement(document(), useElement); | |
useElement->buildPendingResource(); | |
} | |
ASSERT(m_shadowRoot->shadowParentNode() == useElement); | |
bool shouldRecreateTree = m_recreateTree; | |
if (m_recreateTree) { | |
ASSERT(hadExistingTree); | |
if (m_shadowRoot->attached()) | |
m_shadowRoot->detach(); | |
m_shadowRoot->removeAllChildren(); | |
m_recreateTree = false; | |
} | |
// Only rebuild the shadow tree, if we a) never had a tree or b) we were specifically asked to do so | |
// If the use element is a pending resource, and a) or b) is true, do nothing, and wait for the use | |
// element to be asked to buildPendingResource(), this will call us again, with m_recreateTrue=true. | |
if ((shouldRecreateTree || !hadExistingTree) && !useElement->isPendingResource()) { | |
useElement->buildShadowAndInstanceTree(m_shadowRoot.get()); | |
// Attach shadow root element | |
m_shadowRoot->attachElement(style(), renderArena()); | |
// Attach subtree, as if it was a regular non-shadow tree | |
for (Node* child = m_shadowRoot->firstChild(); child; child = child->nextSibling()) | |
child->attach(); | |
} | |
ASSERT(!m_recreateTree); | |
RenderSVGTransformableContainer::updateFromElement(); | |
} | |
void RenderSVGShadowTreeRootContainer::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle) | |
{ | |
RenderSVGTransformableContainer::styleDidChange(diff, oldStyle); | |
if (RenderObject* shadowRootRenderer = m_shadowRoot ? m_shadowRoot->renderer() : 0) | |
shadowRootRenderer->setStyle(style()); | |
} | |
} | |
#endif |