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/*
* Copyright (C) Research In Motion Limited 2010. All rights reserved.
* Copyright (c) 2023, 2024 Igalia S.L.
*
* 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.
*/
#include "config.h"
#include "RenderSVGResourceContainer.h"
#include "RenderLayer.h"
#include "RenderSVGModelObjectInlines.h"
#include "RenderSVGRoot.h"
#include "SVGElementTypeHelpers.h"
#include "SVGResourceElementClient.h"
#include "SVGVisitedElementTracking.h"
#include <wtf/SetForScope.h>
#include <wtf/StackStats.h>
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(RenderSVGResourceContainer);
RenderSVGResourceContainer::RenderSVGResourceContainer(Type type, SVGElement& element, RenderStyle&& style)
: RenderSVGHiddenContainer(type, element, WTFMove(style), SVGModelObjectFlag::IsResourceContainer)
, m_id(element.getIdAttribute())
{
ASSERT(isRenderSVGResourceContainer());
}
RenderSVGResourceContainer::~RenderSVGResourceContainer() = default;
void RenderSVGResourceContainer::willBeDestroyed()
{
m_registered = false;
RenderSVGHiddenContainer::willBeDestroyed();
}
void RenderSVGResourceContainer::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
{
RenderSVGHiddenContainer::styleDidChange(diff, oldStyle);
if (!m_registered) {
m_registered = true;
registerResource();
}
}
void RenderSVGResourceContainer::idChanged()
{
// Remove old id, that is guaranteed to be present in cache.
m_id = element().getIdAttribute();
registerResource();
}
static inline void notifyResourceChanged(SVGElement& element)
{
static NeverDestroyed<SVGVisitedElementTracking::VisitedSet> s_visitedSet;
SVGVisitedElementTracking recursionTracking(s_visitedSet);
if (recursionTracking.isVisiting(element))
return;
SVGVisitedElementTracking::Scope recursionScope(recursionTracking, element);
for (auto& cssClient : element.referencingCSSClients()) {
if (!cssClient)
continue;
cssClient->resourceChanged(element);
}
}
void RenderSVGResourceContainer::registerResource()
{
Ref treeScope = this->treeScopeForSVGReferences();
if (!treeScope->isIdOfPendingSVGResource(m_id))
return;
auto elements = copyToVectorOf<Ref<SVGElement>>(treeScope->removePendingSVGResource(m_id));
for (auto& element : elements) {
ASSERT(element->hasPendingResources());
treeScope->clearHasPendingSVGResourcesIfPossible(element);
notifyResourceChanged(element.get());
}
}
void RenderSVGResourceContainer::repaintAllClients() const
{
Ref svgElement = element();
notifyResourceChanged(svgElement.get());
}
}
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