HTMLPlugInImageElement.cpp [plain text]
#include "config.h"
#include "HTMLPlugInImageElement.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "FrameLoaderClient.h"
#include "HTMLImageLoader.h"
#include "HTMLNames.h"
#include "Image.h"
#include "Page.h"
#include "RenderEmbeddedObject.h"
#include "RenderImage.h"
#include "SecurityOrigin.h"
namespace WebCore {
HTMLPlugInImageElement::HTMLPlugInImageElement(const QualifiedName& tagName, Document* document, bool createdByParser, PreferPlugInsForImagesOption preferPlugInsForImagesOption)
: HTMLPlugInElement(tagName, document)
, m_needsWidgetUpdate(!createdByParser)
, m_shouldPreferPlugInsForImages(preferPlugInsForImagesOption == ShouldPreferPlugInsForImages)
{
}
RenderEmbeddedObject* HTMLPlugInImageElement::renderEmbeddedObject() const
{
if (!renderer() || !renderer()->isEmbeddedObject())
return 0;
return toRenderEmbeddedObject(renderer());
}
bool HTMLPlugInImageElement::isImageType()
{
if (m_serviceType.isEmpty() && protocolIs(m_url, "data"))
m_serviceType = mimeTypeFromDataURL(m_url);
if (Frame* frame = document()->frame()) {
KURL completedURL = frame->loader()->completeURL(m_url);
return frame->loader()->client()->objectContentType(completedURL, m_serviceType, shouldPreferPlugInsForImages()) == ObjectContentImage;
}
return Image::supportsType(m_serviceType);
}
bool HTMLPlugInImageElement::allowedToLoadFrameURL(const String& url)
{
ASSERT(document());
ASSERT(document()->frame());
if (document()->frame()->page()->frameCount() >= Page::maxNumberOfFrames)
return false;
KURL completeURL = document()->completeURL(url);
if (contentFrame() && protocolIsJavaScript(completeURL)
&& !document()->securityOrigin()->canAccess(contentDocument()->securityOrigin()))
return false;
bool foundSelfReference = false;
for (Frame* frame = document()->frame(); frame; frame = frame->tree()->parent()) {
if (equalIgnoringFragmentIdentifier(frame->document()->url(), completeURL)) {
if (foundSelfReference)
return false;
foundSelfReference = true;
}
}
return true;
}
bool HTMLPlugInImageElement::wouldLoadAsNetscapePlugin(const String& url, const String& serviceType)
{
ASSERT(document());
ASSERT(document()->frame());
FrameLoader* frameLoader = document()->frame()->loader();
ASSERT(frameLoader);
KURL completedURL;
if (!url.isEmpty())
completedURL = frameLoader->completeURL(url);
if (frameLoader->client()->objectContentType(completedURL, serviceType, shouldPreferPlugInsForImages()) == ObjectContentNetscapePlugin)
return true;
return false;
}
RenderObject* HTMLPlugInImageElement::createRenderer(RenderArena* arena, RenderStyle* style)
{
if (useFallbackContent())
return RenderObject::createObject(this, style);
if (isImageType()) {
RenderImage* image = new (arena) RenderImage(this);
image->setImageResource(RenderImageResource::create());
return image;
}
return new (arena) RenderEmbeddedObject(this);
}
void HTMLPlugInImageElement::recalcStyle(StyleChange ch)
{
if (!useFallbackContent() && needsWidgetUpdate() && renderer() && !isImageType()) {
detach();
attach();
}
HTMLPlugInElement::recalcStyle(ch);
}
void HTMLPlugInImageElement::attach()
{
bool isImage = isImageType();
if (!isImage)
queuePostAttachCallback(&HTMLPlugInImageElement::updateWidgetCallback, this);
HTMLPlugInElement::attach();
if (isImage && renderer() && !useFallbackContent()) {
if (!m_imageLoader)
m_imageLoader = adoptPtr(new HTMLImageLoader(this));
m_imageLoader->updateFromElement();
}
}
void HTMLPlugInImageElement::detach()
{
if (attached() && renderer() && !useFallbackContent())
setNeedsWidgetUpdate(true);
HTMLPlugInElement::detach();
}
void HTMLPlugInImageElement::updateWidgetIfNecessary()
{
document()->updateStyleIfNeeded();
if (!needsWidgetUpdate() || useFallbackContent() || isImageType())
return;
if (!renderEmbeddedObject() || renderEmbeddedObject()->pluginCrashedOrWasMissing())
return;
updateWidget(CreateOnlyNonNetscapePlugins);
}
void HTMLPlugInImageElement::finishParsingChildren()
{
HTMLPlugInElement::finishParsingChildren();
if (useFallbackContent())
return;
setNeedsWidgetUpdate(true);
if (inDocument())
setNeedsStyleRecalc();
}
void HTMLPlugInImageElement::willMoveToNewOwnerDocument()
{
if (m_imageLoader)
m_imageLoader->elementWillMoveToNewOwnerDocument();
HTMLPlugInElement::willMoveToNewOwnerDocument();
}
void HTMLPlugInImageElement::updateWidgetCallback(Node* n)
{
static_cast<HTMLPlugInImageElement*>(n)->updateWidgetIfNecessary();
}
}