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/*
* Copyright (C) 2006 Apple Inc. All rights reserved.
* Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2007 Rob Buis <buis@kde.org>
*
* 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 "SVGDocumentExtensions.h"
#include "Document.h"
#include "EventListener.h"
#include "FrameDestructionObserverInlines.h"
#include "FrameLoader.h"
#include "LocalDOMWindow.h"
#include "LocalFrame.h"
#include "Page.h"
#include "SMILTimeContainer.h"
#include "SVGElement.h"
#include "SVGFontFaceElement.h"
#include "SVGResourcesCache.h"
#include "SVGSMILElement.h"
#include "SVGSVGElement.h"
#include "SVGUseElement.h"
#include "ScriptableDocumentParser.h"
#include "ShadowRoot.h"
#include <wtf/TZoneMallocInlines.h>
#include <wtf/text/AtomString.h>
#include <wtf/text/MakeString.h>
namespace WebCore {
WTF_MAKE_TZONE_ALLOCATED_IMPL(SVGDocumentExtensions);
static bool animationsPausedForDocument(Document& document)
{
return !document.page() || !document.page()->isVisible() || !document.page()->imageAnimationEnabled();
}
SVGDocumentExtensions::SVGDocumentExtensions(Document& document)
: m_document(document)
, m_resourcesCache(makeUnique<SVGResourcesCache>())
, m_areAnimationsPaused(animationsPausedForDocument(document))
{
}
SVGDocumentExtensions::~SVGDocumentExtensions() = default;
void SVGDocumentExtensions::addTimeContainer(SVGSVGElement& element)
{
m_timeContainers.add(element);
if (m_areAnimationsPaused)
element.pauseAnimations();
}
void SVGDocumentExtensions::removeTimeContainer(SVGSVGElement& element)
{
m_timeContainers.remove(element);
}
Vector<Ref<SVGSVGElement>> SVGDocumentExtensions::allSVGSVGElements() const
{
return copyToVectorOf<Ref<SVGSVGElement>>(m_timeContainers);
}
void SVGDocumentExtensions::startAnimations()
{
// FIXME: Eventually every "Time Container" will need a way to latch on to some global timer
// starting animations for a document will do this "latching"
// FIXME: We hold a ref pointers to prevent a shadow tree from getting removed out from underneath us.
// In the future we should refactor the use-element to avoid this. See https://webkit.org/b/53704
auto timeContainers = copyToVectorOf<Ref<SVGSVGElement>>(m_timeContainers);
for (auto& element : timeContainers)
element->protectedTimeContainer()->begin();
}
void SVGDocumentExtensions::pauseAnimations()
{
for (Ref container : m_timeContainers)
container->pauseAnimations();
m_areAnimationsPaused = true;
}
Ref<Document> SVGDocumentExtensions::protectedDocument() const
{
return m_document.get();
}
void SVGDocumentExtensions::unpauseAnimations()
{
// If animations are paused at the document level, don't allow `this` to be unpaused.
if (animationsPausedForDocument(protectedDocument()))
return;
for (Ref container : m_timeContainers)
container->unpauseAnimations();
m_areAnimationsPaused = false;
}
void SVGDocumentExtensions::dispatchLoadEventToOutermostSVGElements()
{
auto timeContainers = copyToVectorOf<Ref<SVGSVGElement>>(m_timeContainers);
for (auto& container : timeContainers) {
if (!container->isOutermostSVGSVGElement())
continue;
container->sendLoadEventIfPossible();
}
}
static void reportMessage(Document& document, MessageLevel level, const String& message)
{
if (document.frame())
document.addConsoleMessage(MessageSource::Rendering, level, message);
}
void SVGDocumentExtensions::reportWarning(const String& message)
{
reportMessage(protectedDocument(), MessageLevel::Warning, makeString("Warning: "_s, message));
}
void SVGDocumentExtensions::reportError(const String& message)
{
reportMessage(protectedDocument(), MessageLevel::Error, makeString("Error: "_s, message));
}
void SVGDocumentExtensions::addElementToRebuild(SVGElement& element)
{
m_rebuildElements.append(element);
}
void SVGDocumentExtensions::removeElementToRebuild(SVGElement& element)
{
m_rebuildElements.removeFirstMatching([&](auto& item) { return item.ptr() == &element; });
}
void SVGDocumentExtensions::rebuildElements()
{
auto shadowRebuildElements = std::exchange(m_rebuildElements, { });
for (auto& element : shadowRebuildElements)
element->svgAttributeChanged(SVGNames::hrefAttr);
}
void SVGDocumentExtensions::clearTargetDependencies(SVGElement& referencedElement)
{
for (Ref element : referencedElement.referencingElements()) {
m_rebuildElements.append(element.get());
element->callClearTarget();
}
}
void SVGDocumentExtensions::rebuildAllElementReferencesForTarget(SVGElement& referencedElement)
{
for (Ref element : referencedElement.referencingElements())
element->svgAttributeChanged(SVGNames::hrefAttr);
}
void SVGDocumentExtensions::registerSVGFontFaceElement(SVGFontFaceElement& element)
{
m_svgFontFaceElements.add(element);
}
void SVGDocumentExtensions::unregisterSVGFontFaceElement(SVGFontFaceElement& element)
{
ASSERT(m_svgFontFaceElements.contains(element));
m_svgFontFaceElements.remove(element);
}
}
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