RenderEmbeddedObject.cpp [plain text]
#include "config.h"
#include "RenderEmbeddedObject.h"
#include "Frame.h"
#include "FrameLoaderClient.h"
#include "HTMLEmbedElement.h"
#include "HTMLIFrameElement.h"
#include "HTMLNames.h"
#include "HTMLObjectElement.h"
#include "HTMLParamElement.h"
#include "MIMETypeRegistry.h"
#include "Page.h"
#include "PluginData.h"
#include "PluginWidget.h"
#include "RenderView.h"
#include "RenderWidgetProtector.h"
#include "Text.h"
#include "Settings.h"
#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
#include "HTMLVideoElement.h"
#endif
namespace WebCore {
using namespace HTMLNames;
RenderEmbeddedObject::RenderEmbeddedObject(Element* element)
: RenderPartObject(element)
, m_updatingWidget(false)
{
view()->frameView()->setIsVisuallyNonEmpty();
}
RenderEmbeddedObject::~RenderEmbeddedObject()
{
if (frameView())
frameView()->removeWidgetToUpdate(this);
}
#if USE(ACCELERATED_COMPOSITING)
bool RenderEmbeddedObject::requiresLayer() const
{
if (RenderPartObject::requiresLayer())
return true;
return allowsAcceleratedCompositing();
}
bool RenderEmbeddedObject::allowsAcceleratedCompositing() const
{
return widget() && widget()->isPluginWidget() && static_cast<PluginWidget*>(widget())->willProvidePluginLayer();
}
#endif
static bool isURLAllowed(Document* doc, const String& url)
{
if (doc->frame()->page()->frameCount() >= 200)
return false;
KURL completeURL = doc->completeURL(url);
bool foundSelfReference = false;
for (Frame* frame = doc->frame(); frame; frame = frame->tree()->parent()) {
if (equalIgnoringRef(frame->loader()->url(), completeURL)) {
if (foundSelfReference)
return false;
foundSelfReference = true;
}
}
return true;
}
typedef HashMap<String, String, CaseFoldingHash> ClassIdToTypeMap;
static ClassIdToTypeMap* createClassIdToTypeMap()
{
ClassIdToTypeMap* map = new ClassIdToTypeMap;
map->add("clsid:D27CDB6E-AE6D-11CF-96B8-444553540000", "application/x-shockwave-flash");
map->add("clsid:CFCDAA03-8BE4-11CF-B84B-0020AFBBCCFA", "audio/x-pn-realaudio-plugin");
map->add("clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B", "video/quicktime");
map->add("clsid:166B1BCA-3F9C-11CF-8075-444553540000", "application/x-director");
#if ENABLE(ACTIVEX_TYPE_CONVERSION_WMPLAYER)
map->add("clsid:6BF52A52-394A-11D3-B153-00C04F79FAA6", "application/x-mplayer2");
map->add("clsid:22D6F312-B0F6-11D0-94AB-0080C74C7E95", "application/x-mplayer2");
#endif
return map;
}
static const String& activeXType()
{
DEFINE_STATIC_LOCAL(String, activeXType, ("application/x-oleobject"));
return activeXType;
}
static inline bool havePlugin(const PluginData* pluginData, const String& type)
{
return pluginData && !type.isEmpty() && pluginData->supportsMimeType(type);
}
static String serviceTypeForClassId(const String& classId, const PluginData* pluginData)
{
if (classId.isEmpty())
return String();
static ClassIdToTypeMap* map = createClassIdToTypeMap();
String type = map->get(classId);
if (havePlugin(pluginData, activeXType()) && !havePlugin(pluginData, type))
return activeXType();
return type;
}
static inline bool shouldUseEmbedDescendant(HTMLObjectElement* objectElement, const PluginData* pluginData)
{
#if PLATFORM(MAC)
UNUSED_PARAM(objectElement);
UNUSED_PARAM(pluginData);
return true;
#else
return !(havePlugin(pluginData, activeXType())
&& serviceTypeForClassId(objectElement->classId(), pluginData) == activeXType());
#endif
}
static void mapDataParamToSrc(Vector<String>* paramNames, Vector<String>* paramValues)
{
int srcIndex = -1, dataIndex = -1;
for (unsigned int i = 0; i < paramNames->size(); ++i) {
if (equalIgnoringCase((*paramNames)[i], "src"))
srcIndex = i;
else if (equalIgnoringCase((*paramNames)[i], "data"))
dataIndex = i;
}
if (srcIndex == -1 && dataIndex != -1) {
paramNames->append("src");
paramValues->append((*paramValues)[dataIndex]);
}
}
class UpdateWidgetReentryHelper {
public:
inline UpdateWidgetReentryHelper(RenderEmbeddedObject *renderer)
: m_renderer(renderer)
, m_isRenderEmbeddedObjectDestroyedBeforeExitingUpdateWidget(false)
{
m_renderer->setUpdatingWidget(true);
}
inline ~UpdateWidgetReentryHelper()
{
if (!m_isRenderEmbeddedObjectDestroyedBeforeExitingUpdateWidget)
m_renderer->setUpdatingWidget(false);
}
inline void setIsRenderEmbeddedObjectDestroyedBeforeExitingUpdateWidget(bool flag)
{
m_isRenderEmbeddedObjectDestroyedBeforeExitingUpdateWidget = flag;
}
private:
RenderEmbeddedObject *m_renderer;
bool m_isRenderEmbeddedObjectDestroyedBeforeExitingUpdateWidget;
};
void RenderEmbeddedObject::updateWidget(bool onlyCreateNonNetscapePlugins)
{
if (m_updatingWidget)
return;
UpdateWidgetReentryHelper reentryHelper(this);
String url;
String serviceType;
Vector<String> paramNames;
Vector<String> paramValues;
Frame* frame = frameView()->frame();
RenderWidgetProtector protector(this);
if (node()->hasTagName(objectTag)) {
HTMLObjectElement* objectElement = static_cast<HTMLObjectElement*>(node());
objectElement->setNeedWidgetUpdate(false);
if (!objectElement->isFinishedParsingChildren())
return;
HTMLEmbedElement* embed = 0;
const PluginData* pluginData = frame->page()->pluginData();
if (shouldUseEmbedDescendant(objectElement, pluginData)) {
for (Node* child = objectElement->firstChild(); child; ) {
if (child->hasTagName(embedTag)) {
embed = static_cast<HTMLEmbedElement*>(child);
break;
} else if (child->hasTagName(objectTag))
child = child->nextSibling(); else
child = child->traverseNextNode(objectElement); }
}
HTMLElement* embedOrObject;
if (embed) {
embedOrObject = embed;
url = embed->url();
serviceType = embed->serviceType();
} else
embedOrObject = objectElement;
if (url.isEmpty())
url = objectElement->url();
if (serviceType.isEmpty())
serviceType = objectElement->serviceType();
HashSet<StringImpl*, CaseFoldingHash> uniqueParamNames;
Node* child = objectElement->firstChild();
while (child && (url.isEmpty() || serviceType.isEmpty() || !embed)) {
if (child->hasTagName(paramTag)) {
HTMLParamElement* p = static_cast<HTMLParamElement*>(child);
String name = p->name();
if (url.isEmpty() && (equalIgnoringCase(name, "src") || equalIgnoringCase(name, "movie") || equalIgnoringCase(name, "code") || equalIgnoringCase(name, "url")))
url = p->value();
if (serviceType.isEmpty() && equalIgnoringCase(name, "type")) {
serviceType = p->value();
int pos = serviceType.find(";");
if (pos != -1)
serviceType = serviceType.left(pos);
}
if (!embed && !name.isEmpty()) {
uniqueParamNames.add(name.impl());
paramNames.append(p->name());
paramValues.append(p->value());
}
}
child = child->nextSibling();
}
String codebase;
if (!embed && MIMETypeRegistry::isJavaAppletMIMEType(serviceType)) {
codebase = "codebase";
uniqueParamNames.add(codebase.impl()); }
NamedNodeMap* attributes = embedOrObject->attributes();
if (attributes) {
for (unsigned i = 0; i < attributes->length(); ++i) {
Attribute* it = attributes->attributeItem(i);
const AtomicString& name = it->name().localName();
if (embed || !uniqueParamNames.contains(name.impl())) {
paramNames.append(name.string());
paramValues.append(it->value().string());
}
}
}
mapDataParamToSrc(¶mNames, ¶mValues);
if (serviceType.isEmpty())
serviceType = serviceTypeForClassId(objectElement->classId(), pluginData);
if (!isURLAllowed(document(), url))
return;
m_hasFallbackContent = false;
for (Node* child = objectElement->firstChild(); child && !m_hasFallbackContent; child = child->nextSibling()) {
if ((!child->isTextNode() && !child->hasTagName(embedTag) && !child->hasTagName(paramTag)) || (child->isTextNode() && !static_cast<Text*>(child)->containsOnlyWhitespace()))
m_hasFallbackContent = true;
}
if (onlyCreateNonNetscapePlugins) {
KURL completedURL;
if (!url.isEmpty())
completedURL = frame->loader()->completeURL(url);
if (frame->loader()->client()->objectContentType(completedURL, serviceType) == ObjectContentNetscapePlugin)
return;
}
bool success = frame->loader()->requestObject(this, url, AtomicString(objectElement->name()), serviceType, paramNames, paramValues);
if (!success && m_hasFallbackContent) {
reentryHelper.setIsRenderEmbeddedObjectDestroyedBeforeExitingUpdateWidget(true);
objectElement->renderFallbackContent();
}
} else if (node()->hasTagName(embedTag)) {
HTMLEmbedElement* embedElement = static_cast<HTMLEmbedElement*>(node());
embedElement->setNeedWidgetUpdate(false);
url = embedElement->url();
serviceType = embedElement->serviceType();
if (url.isEmpty() && serviceType.isEmpty())
return;
if (!isURLAllowed(document(), url))
return;
NamedNodeMap* attributes = embedElement->attributes();
if (attributes) {
for (unsigned i = 0; i < attributes->length(); ++i) {
Attribute* it = attributes->attributeItem(i);
paramNames.append(it->name().localName().string());
paramValues.append(it->value().string());
}
}
if (onlyCreateNonNetscapePlugins) {
KURL completedURL;
if (!url.isEmpty())
completedURL = frame->loader()->completeURL(url);
if (frame->loader()->client()->objectContentType(completedURL, serviceType) == ObjectContentNetscapePlugin)
return;
}
frame->loader()->requestObject(this, url, embedElement->getAttribute(nameAttr), serviceType, paramNames, paramValues);
}
#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
else if (node()->hasTagName(videoTag) || node()->hasTagName(audioTag)) {
HTMLMediaElement* mediaElement = static_cast<HTMLMediaElement*>(node());
KURL kurl;
mediaElement->getPluginProxyParams(kurl, paramNames, paramValues);
mediaElement->setNeedWidgetUpdate(false);
frame->loader()->loadMediaPlayerProxyPlugin(node(), kurl, paramNames, paramValues);
}
#endif
}
void RenderEmbeddedObject::layout()
{
ASSERT(needsLayout());
calcWidth();
calcHeight();
adjustOverflowForBoxShadowAndReflect();
RenderPart::layout();
if (!widget() && frameView())
frameView()->addWidgetToUpdate(this);
setNeedsLayout(false);
}
}