/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 2000 Simon Hausmann <hausmann@kde.org>
* (C) 2000 Stefan Schimanski (1Stein@gmx.de)
* Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
*
* 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 "RenderPartObject.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "FrameLoaderClient.h"
#include "FrameTree.h"
#include "FrameView.h"
#include "HTMLEmbedElement.h"
#include "HTMLIFrameElement.h"
#include "HTMLNames.h"
#include "HTMLObjectElement.h"
#include "HTMLParamElement.h"
#include "MIMETypeRegistry.h"
#include "Page.h"
#include "Text.h"
namespace WebCore {
using namespace HTMLNames;
RenderPartObject::RenderPartObject(HTMLFrameOwnerElement* element)
: RenderPart(element)
{
// init RenderObject attributes
setInline(true);
m_hasFallbackContent = false;
}
RenderPartObject::~RenderPartObject()
{
if (m_view)
m_view->removeWidgetToUpdate(this);
}
static bool isURLAllowed(Document* doc, const String& url)
{
if (doc->frame()->page()->frameCount() >= 200)
return false;
// We allow one level of self-reference because some sites depend on that.
// But we don't allow more than one.
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;
}
static inline void mapClassIdToServiceType(const String& classId, String& serviceType)
{
// It is ActiveX, but the nsplugin system handling
// should also work, that's why we don't override the
// serviceType with application/x-oleobject
// but let the KTrader in khtmlpart::createPart() detect
// the user's preference: launch with activex viewer or
// with nspluginviewer (Niko)
#ifndef DISABLE_ACTIVEX_TYPE_CONVERSION_FLASH
if (classId.contains("D27CDB6E-AE6D-11cf-96B8-444553540000", false)) {
serviceType = "application/x-shockwave-flash";
return;
}
#endif
#ifndef DISABLE_ACTIVEX_TYPE_CONVERSION_REALAUDIO
if (classId.contains("CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA", false)) {
serviceType = "audio/x-pn-realaudio-plugin";
return;
}
#endif
#ifndef DISABLE_ACTIVEX_TYPE_CONVERSION_QUICKTIME
if (classId.contains("02BF25D5-8C17-4B23-BC80-D3488ABDDC6B", false)) {
serviceType = "video/quicktime";
return;
}
#endif
#ifndef DISABLE_ACTIVEX_TYPE_CONVERSION_DIRECTOR
if (classId.contains("166B1BCA-3F9C-11CF-8075-444553540000", false)) {
serviceType = "application/x-director";
return;
}
#endif
#ifndef DISABLE_ACTIVEX_TYPE_CONVERSION_MPLAYER2
if (classId.contains("6BF52A52-394A-11d3-B153-00C04F79FAA6", false)) {
serviceType = "application/x-mplayer2";
return;
}
#endif
// TODO: add more plugins here
if (!classId.isEmpty()) {
// We have a clsid, means this is activex (Niko)
serviceType = "application/x-oleobject";
}
}
// By default, when an Object element contains an embed tag, we will try to
// create a plugin for the embed tag. However we will not do this for Windows
// media object because our internal ActiveX plugin supports scripting and
// some websites rely on that. The default npdsplay.dll plugin doesn't support
// scripting.
static bool ShouldUseEmbedForObject(HTMLObjectElement* o)
{
#ifndef DISABLE_ACTIVEX_TYPE_CONVERSION_MPLAYER2
return true;
#endif
NamedAttrMap* attributes = o->attributes();
if (attributes) {
for (unsigned i = 0; i < attributes->length(); ++i) {
Attribute* it = attributes->attributeItem(i);
if (it->name().localName().string().foldCase() == "classid") {
// If it's windows media player type.
if (it->value().contains("6BF52A52-394A-11d3-B153-00C04F79FAA6", false) ||
it->value().contains("22D6F312-B0F6-11D0-94AB-0080C74C7E95", false))
return false;
}
}
}
return true;
}
void RenderPartObject::updateWidget(bool onlyCreateNonNetscapePlugins)
{
String url;
String serviceType;
Vector<String> paramNames;
Vector<String> paramValues;
Frame* frame = m_view->frame();
if (element()->hasTagName(objectTag)) {
HTMLObjectElement* o = static_cast<HTMLObjectElement*>(element());
o->setNeedWidgetUpdate(false);
if (!o->isFinishedParsingChildren())
return;
// Check for a child EMBED tag.
HTMLEmbedElement* embed = 0;
if (ShouldUseEmbedForObject(o)) {
for (Node* child = o->firstChild(); child;) {
if (child->hasTagName(embedTag)) {
embed = static_cast<HTMLEmbedElement*>(child);
break;
} else if (child->hasTagName(objectTag))
child = child->nextSibling(); // Don't descend into nested OBJECT tags
else
child = child->traverseNextNode(o); // Otherwise descend (EMBEDs may be inside COMMENT tags)
}
}
// Use the attributes from the EMBED tag instead of the OBJECT tag including WIDTH and HEIGHT.
HTMLElement *embedOrObject;
if (embed) {
embedOrObject = (HTMLElement *)embed;
url = embed->url();
serviceType = embed->serviceType();
} else
embedOrObject = (HTMLElement *)o;
// If there was no URL or type defined in EMBED, try the OBJECT tag.
if (url.isEmpty())
url = o->url();
if (serviceType.isEmpty())
serviceType = o->serviceType();
HashSet<StringImpl*, CaseFoldingHash> uniqueParamNames;
// Scan the PARAM children.
// Get the URL and type from the params if we don't already have them.
// Get the attributes from the params if there is no EMBED tag.
Node *child = o->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();
}
// When OBJECT is used for an applet via Sun's Java plugin, the CODEBASE attribute in the tag
// points to the Java plugin itself (an ActiveX component) while the actual applet CODEBASE is
// in a PARAM tag. See <http://java.sun.com/products/plugin/1.2/docs/tags.html>. This means
// we have to explicitly suppress the tag's CODEBASE attribute if there is none in a PARAM,
// else our Java plugin will misinterpret it. [4004531]
String codebase;
if (!embed && MIMETypeRegistry::isJavaAppletMIMEType(serviceType)) {
codebase = "codebase";
uniqueParamNames.add(codebase.impl()); // pretend we found it in a PARAM already
}
// Turn the attributes of either the EMBED tag or OBJECT tag into arrays, but don't override PARAM values.
NamedAttrMap* 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());
}
}
}
// If we still don't have a type, try to map from a specific CLASSID to a type.
// However, if we have the embed tag we shouldn't do so because the outer object
// may be converted to application/x-oleobject, while we are not getting the paramaters
// including classid etc for the outer object.
if (serviceType.isEmpty() && !o->classId().isEmpty() && !embed)
mapClassIdToServiceType(o->classId(), serviceType);
if (!isURLAllowed(document(), url))
return;
// Find out if we support fallback content.
m_hasFallbackContent = false;
for (Node *child = o->firstChild(); child && !m_hasFallbackContent; child = child->nextSibling()) {
if ((!child->isTextNode() && !child->hasTagName(embedTag) && !child->hasTagName(paramTag)) || // Discount <embed> and <param>
(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(o->name()), serviceType, paramNames, paramValues);
if (!success && m_hasFallbackContent)
o->renderFallbackContent();
} else if (element()->hasTagName(embedTag)) {
HTMLEmbedElement *o = static_cast<HTMLEmbedElement*>(element());
o->setNeedWidgetUpdate(false);
url = o->url();
serviceType = o->serviceType();
if (url.isEmpty() && serviceType.isEmpty())
return;
if (!isURLAllowed(document(), url))
return;
// add all attributes set on the embed object
NamedAttrMap* a = o->attributes();
if (a) {
for (unsigned i = 0; i < a->length(); ++i) {
Attribute* it = a->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, o->getAttribute(nameAttr), serviceType, paramNames, paramValues);
}
}
void RenderPartObject::layout()
{
ASSERT(needsLayout());
calcWidth();
calcHeight();
adjustOverflowForBoxShadow();
RenderPart::layout();
if (!m_widget && m_view)
m_view->addWidgetToUpdate(this);
setNeedsLayout(false);
}
void RenderPartObject::viewCleared()
{
if (element() && m_widget && m_widget->isFrameView()) {
FrameView* view = static_cast<FrameView*>(m_widget);
int marginw = -1;
int marginh = -1;
if (element()->hasTagName(iframeTag)) {
HTMLIFrameElement* frame = static_cast<HTMLIFrameElement*>(element());
marginw = frame->getMarginWidth();
marginh = frame->getMarginHeight();
}
if (marginw != -1)
view->setMarginWidth(marginw);
if (marginh != -1)
view->setMarginHeight(marginh);
}
}
}