RenderSVGResourceMasker* MaskImageOperation::getSVGMasker(RenderElement& renderer)
{
if (image())
return nullptr;
// Identify the element referenced by the fragmentId.
CachedSVGDocumentReference* svgDocumentReference = cachedSVGDocumentReference();
Element* elementForMasking = nullptr;
RenderObject* svgResourceForMasking = nullptr;
if (svgDocumentReference && svgDocumentReference->document()) {
SVGDocument* svgDocument = svgDocumentReference->document()->document();
if (svgDocument && svgDocument->rootElement())
elementForMasking = svgDocument->rootElement()->getElementById(fragment());
} else
elementForMasking = renderer.document().getElementById(fragment());
if (elementForMasking)
svgResourceForMasking = elementForMasking->renderer();
// Check if it's the correct type
if (svgResourceForMasking && svgResourceForMasking->isSVGResourceContainer() && downcast<RenderSVGResourceContainer>(svgResourceForMasking)->resourceType() == MaskerResourceType)
return static_cast<RenderSVGResourceMasker*>(svgResourceForMasking);
return nullptr;
}
void MaskImageOperation::notifyFinished(CachedResource* resource)
{
// The only one notifying us should be the SVG document we hold.
CachedSVGDocument* cachedSVGDocument = ensureCachedSVGDocumentReference()->document();
if ((CachedResource*)cachedSVGDocument != resource || !resource) {
ASSERT_NOT_REACHED();
return;
}
// Check if we find a valid masking element in this SVG document.
SVGDocument* svgDocument = cachedSVGDocument->document();
bool validMaskFound = false;
if (svgDocument && svgDocument->rootElement()) {
// Are we looking for a specific element in the SVG document?
if (fragment().length()) {
if (Element* maskingElement = svgDocument->rootElement()->getElementById(fragment())) {
if (is<SVGMaskElement>(maskingElement))
validMaskFound = true;
}
}
}
// If no valid mask was found, this is not a valid SVG document or it specified an invalid fragment identifier.
// Fallback to the normal way of loading the document in an Image object.
if (!validMaskFound) {
// Get the resource loader, acquire the resource buffer and load it into an image.
ASSERT(cachedSVGDocument->loader());
if (SubresourceLoader* loader = cachedSVGDocument->loader()) {
if (SharedBuffer* dataBuffer = loader->resourceData()) {
m_styleImage = StyleCachedImage::create(new CachedImage(cachedSVGDocument->resourceRequest(), cachedSVGDocument->sessionID()));
if (m_renderLayerImageClient)
m_styleImage->cachedImage()->addClient(m_renderLayerImageClient);
for (auto itClient : m_rendererImageClients)
m_styleImage->addClient(itClient.key);
m_styleImage->cachedImage()->setResponse(cachedSVGDocument->response());
m_styleImage->cachedImage()->finishLoading(dataBuffer);
// Let the cached resource loader of the document which requested this mask keep a handle to this
// cached image to ensure it only gets deleted when it should.
if (m_cachedResourceLoader.get())
m_cachedResourceLoader->addCachedResource(*m_styleImage->cachedImage());
}
// Destroy the current SVG document as its no longer needed
m_cachedSVGDocumentReference = nullptr;
}
}
}
JSValue jsSVGDocumentRootElement(ExecState* exec, JSValue slotBase, const Identifier&)
{
JSSVGDocument* castedThis = static_cast<JSSVGDocument*>(asObject(slotBase));
UNUSED_PARAM(exec);
SVGDocument* imp = static_cast<SVGDocument*>(castedThis->impl());
JSValue result = toJS(exec, castedThis->globalObject(), WTF::getPtr(imp->rootElement()));
return result;
}
JSValue* JSSVGDocument::getValueProperty(ExecState* exec, int token) const
{
switch (token) {
case RootElementAttrNum: {
SVGDocument* imp = static_cast<SVGDocument*>(impl());
return toJS(exec, WTF::getPtr(imp->rootElement()));
}
}
return 0;
}
