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/*
* 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"
#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
#include "HTMLMediaElement.h"
#include "HTMLVideoElement.h"
#endif
#include "MIMETypeRegistry.h"
#include "Page.h"
#include "PluginData.h"
#include "RenderView.h"
#include "Text.h"
namespace WebCore {
using namespace HTMLNames;
RenderPartObject::RenderPartObject(Element* element)
: RenderPart(element)
{
// init RenderObject attributes
setInline(true);
m_hasFallbackContent = false;
if (element->hasTagName(embedTag) || element->hasTagName(objectTag))
view()->frameView()->setIsVisuallyNonEmpty();
}
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;
}
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)
{
// Return early if classId is empty (since we won't do anything below).
// Furthermore, if classId is null, calling get() below will crash.
if (classId.isEmpty())
return String();
static ClassIdToTypeMap* map = createClassIdToTypeMap();
String type = map->get(classId);
// If we do have a plug-in that supports generic ActiveX content and don't have a plug-in
// for the MIME type we came up with, ignore the MIME type we came up with and just use
// the ActiveX type.
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);
// On Mac, we always want to use the embed descendant.
return true;
#else
// If we have both an <object> and <embed>, we always want to use the <embed> except when we have
// an ActiveX plug-in and plan to use it.
return !(havePlugin(pluginData, activeXType())
&& serviceTypeForClassId(objectElement->classId(), pluginData) == activeXType());
#endif
}
void RenderPartObject::updateWidget(bool onlyCreateNonNetscapePlugins)
{
String url;
String serviceType;
Vector<String> paramNames;
Vector<String> paramValues;
Frame* frame = m_view->frame();
if (node()->hasTagName(objectTag)) {
HTMLObjectElement* o = static_cast<HTMLObjectElement*>(node());
o->setNeedWidgetUpdate(false);
if (!o->isFinishedParsingChildren())
return;
// Check for a child EMBED tag.
HTMLEmbedElement* embed = 0;
const PluginData* pluginData = frame->page()->pluginData();
if (shouldUseEmbedDescendant(o, pluginData)) {
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.
if (serviceType.isEmpty())
serviceType = serviceTypeForClassId(o->classId(), pluginData);
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 (node()->hasTagName(embedTag)) {
HTMLEmbedElement *o = static_cast<HTMLEmbedElement*>(node());
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);
}
#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
else if (node()->hasTagName(videoTag) || node()->hasTagName(audioTag)) {
HTMLMediaElement* o = static_cast<HTMLMediaElement*>(node());
o->setNeedWidgetUpdate(false);
if (node()->hasTagName(videoTag)) {
HTMLVideoElement* vid = static_cast<HTMLVideoElement*>(node());
String poster = vid->poster();
if (!poster.isEmpty()) {
paramNames.append("_media_element_poster_");
paramValues.append(poster);
}
}
url = o->initialURL();
if (!url.isEmpty()) {
paramNames.append("_media_element_src_");
paramValues.append(url);
}
serviceType = "application/x-media-element-proxy-plugin";
frame->loader()->requestObject(this, url, nullAtom, serviceType, paramNames, paramValues);
}
#endif
}
void RenderPartObject::layout()
{
ASSERT(needsLayout());
#ifdef FLATTEN_IFRAME
RenderPart::calcWidth();
RenderPart::calcHeight();
// Some IFrames have a width and/or height of 1 when they are meant to be
// hidden. If that is the case, don't try to expand.
int w = width();
int h = height();
if (m_widget && m_widget->isFrameView() &&
w > 1 && h > 1) {
FrameView* view = static_cast<FrameView*>(m_widget);
RenderView* root = NULL;
if (view->frame() && view->frame()->document() &&
view->frame()->document()->renderer() && view->frame()->document()->renderer()->isRenderView())
root = static_cast<RenderView*>(view->frame()->document()->renderer());
if (root) {
// Update the dimensions to get the correct minimum preferred width
updateWidgetPosition();
// Use the preferred width if it is larger.
setWidth(max(w, root->minPrefWidth()));
int extraWidth = paddingLeft() + paddingRight() + borderLeft() + borderRight();
int extraHeight = paddingTop() + paddingBottom() + borderTop() + borderBottom();
// Resize the view to recalc the height.
int height = h - extraHeight;
int width = w - extraWidth;
if (width > view->width())
height = 0;
if (width != view->width() || height != view->height()) {
view->resize(width, height);
root->setNeedsLayout(true, false);
}
// Layout the view.
if (view->needsLayout())
view->layout();
int contentHeight = view->contentsHeight();
int contentWidth = view->contentsWidth();
// Do not shrink iframes with specified sizes
if (contentHeight > h || style()->height().isAuto())
setHeight(contentHeight);
setWidth(contentWidth);
// Update one last time
updateWidgetPosition();
}
}
#else
calcWidth();
calcHeight();
#endif
adjustOverflowForBoxShadowAndReflect();
RenderPart::layout();
if (!m_widget && m_view)
m_view->addWidgetToUpdate(this);
setNeedsLayout(false);
}
#ifdef FLATTEN_IFRAME
void RenderPartObject::calcWidth() {
RenderPart::calcWidth();
if (!m_widget || !m_widget->isFrameView())
return;
FrameView* view = static_cast<FrameView*>(m_widget);
RenderView* root = static_cast<RenderView*>(view->frame()->contentRenderer());
if (!root)
return;
// Update the dimensions to get the correct minimum preferred
// width
updateWidgetPosition();
// Set the width
setWidth(max(width(), root->minPrefWidth()));
// Update based on the new width
updateWidgetPosition();
// Layout to get the content width
while (view->needsLayout())
view->layout();
setWidth(view->contentsWidth());
// Update one last time to ensure the dimensions.
updateWidgetPosition();
}
void RenderPartObject::calcHeight() {
RenderPart::calcHeight();
if (!m_widget || !m_widget->isFrameView())
return;
FrameView* view = static_cast<FrameView*>(m_widget);
RenderView* root = static_cast<RenderView*>(view->frame()->contentRenderer());
if (!root)
return;
// Update the widget
updateWidgetPosition();
// Layout to get the content height
while (view->needsLayout())
view->layout();
// Do not shrink the height if the size is specified
int h = view->contentsHeight();
if (h > height() || style()->height().isAuto())
setHeight(h);
// Update one last time to ensure the dimensions.
updateWidgetPosition();
}
#endif
void RenderPartObject::viewCleared()
{
if (node() && m_widget && m_widget->isFrameView()) {
FrameView* view = static_cast<FrameView*>(m_widget);
int marginw = -1;
int marginh = -1;
if (node()->hasTagName(iframeTag)) {
HTMLIFrameElement* frame = static_cast<HTMLIFrameElement*>(node());
marginw = frame->getMarginWidth();
marginh = frame->getMarginHeight();
}
if (marginw != -1)
view->setMarginWidth(marginw);
if (marginh != -1)
view->setMarginHeight(marginh);
}
}
}
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