1 /**

     2  * This file is part of the KDE project.

     3  *

     4  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)

     5  *           (C) 2000 Simon Hausmann <hausmann@kde.org>

     6  *           (C) 2000 Stefan Schimanski (1Stein@gmx.de)

     7  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.

     8  *

     9  * This library is free software; you can redistribute it and/or

    10  * modify it under the terms of the GNU Library General Public

    11  * License as published by the Free Software Foundation; either

    12  * version 2 of the License, or (at your option) any later version.

    13  *

    14  * This library is distributed in the hope that it will be useful,

    15  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    17  * Library General Public License for more details.

    18  *

    19  * You should have received a copy of the GNU Library General Public License

    20  * along with this library; see the file COPYING.LIB.  If not, write to

    21  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

    22  * Boston, MA 02110-1301, USA.

    23  *

    24  */

    25 #include "config.h"

    26 #include "RenderPartObject.h"

    27 

    28 #include "Document.h"

    29 #include "EventHandler.h"

    30 #include "Frame.h"

    31 #include "FrameLoader.h"

    32 #include "FrameLoaderClient.h"

    33 #include "FrameTree.h"

    34 #include "FrameView.h"

    35 #include "HTMLEmbedElement.h"

    36 #if PLATFORM(SYMBIAN)  

    37 #include "HTMLBgsoundElement.h"

    38 #include "WebCoreWidget.h"

    39 #endif

    40 #include "HTMLIFrameElement.h"

    41 #include "HTMLNames.h"

    42 #include "HTMLObjectElement.h"

    43 #include "HTMLParamElement.h"

    44 #include "KURL.h"

    45 #include "MIMETypeRegistry.h"

    46 #include "Page.h"

    47 #include "RenderView.h"

    48 #include "Text.h"

    49 #include "Settings.h"

    50 

    51 namespace WebCore {

    52 

    53 using namespace HTMLNames;

    54 

    55 RenderPartObject::RenderPartObject(HTMLFrameOwnerElement* element)

    56     : RenderPart(element)

    57 {

    58     // init RenderObject attributes

    59     setInline(true);

    60     m_hasFallbackContent = false;

    61 }

    62 

    63 RenderPartObject::~RenderPartObject()

    64 {

    65     if (m_view)

    66         m_view->removeWidgetToUpdate(this);

    67 }

    68 

    69 static bool isURLAllowed(Document *doc, const String &url)

    70 {

    71     KURL newURL(doc->completeURL(url.deprecatedString()));

    72     newURL.setRef(DeprecatedString::null);

    73     

    74     if (doc->frame()->page()->frameCount() >= 200)

    75         return false;

    76 

    77     // We allow one level of self-reference because some sites depend on that.

    78     // But we don't allow more than one.

    79     bool foundSelfReference = false;

    80     for (Frame *frame = doc->frame(); frame; frame = frame->tree()->parent()) {

    81         KURL frameURL = frame->loader()->url();

    82         frameURL.setRef(DeprecatedString::null);

    83         if (frameURL == newURL) {

    84             if (foundSelfReference)

    85                 return false;

    86             foundSelfReference = true;

    87         }

    88     }

    89     return true;

    90 }

    91 

    92 static inline void mapClassIdToServiceType(const String& classId, String& serviceType)

    93 {

    94     // It is ActiveX, but the nsplugin system handling

    95     // should also work, that's why we don't override the

    96     // serviceType with application/x-activex-handler

    97     // but let the KTrader in khtmlpart::createPart() detect

    98     // the user's preference: launch with activex viewer or

    99     // with nspluginviewer (Niko)

   100     if (classId.contains("D27CDB6E-AE6D-11cf-96B8-444553540000"))

   101         serviceType = "application/x-shockwave-flash";

   102     else if (classId.contains("CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA"))

   103         serviceType = "audio/x-pn-realaudio-plugin";

   104     else if (classId.contains("02BF25D5-8C17-4B23-BC80-D3488ABDDC6B"))

   105         serviceType = "video/quicktime";

   106     else if (classId.contains("166B1BCA-3F9C-11CF-8075-444553540000"))

   107         serviceType = "application/x-director";

   108     else if (classId.contains("6BF52A52-394A-11d3-B153-00C04F79FAA6"))

   109         serviceType = "application/x-mplayer2";

   110     else if (!classId.isEmpty())

   111         // We have a clsid, means this is activex (Niko)

   112         serviceType = "application/x-activex-handler";

   113     // TODO: add more plugins here

   114 }

   115 

   116 void RenderPartObject::updateWidget(bool onlyCreateNonNetscapePlugins)

   117 {

   118   String url;

   119   String serviceType;

   120   Vector<String> paramNames;

   121   Vector<String> paramValues;

   122   Frame* frame = m_view->frame();

   123   

   124   if (element()->hasTagName(objectTag)) {

   125 

   126       HTMLObjectElement* o = static_cast<HTMLObjectElement*>(element());

   127 

   128       if (!o->isComplete())

   129         return;

   130       // Check for a child EMBED tag.

   131       HTMLEmbedElement* embed = 0;

   132       for (Node* child = o->firstChild(); child;) {

   133           if (child->hasTagName(embedTag)) {

   134               embed = static_cast<HTMLEmbedElement*>(child);

   135               break;

   136           } else if (child->hasTagName(objectTag))

   137               child = child->nextSibling();         // Don't descend into nested OBJECT tags

   138           else

   139               child = child->traverseNextNode(o);   // Otherwise descend (EMBEDs may be inside COMMENT tags)

   140       }

   141       

   142       // Use the attributes from the EMBED tag instead of the OBJECT tag including WIDTH and HEIGHT.

   143       HTMLElement *embedOrObject;

   144       if (embed) {

   145           embedOrObject = (HTMLElement *)embed;

   146           url = embed->url;

   147           serviceType = embed->m_serviceType;

   148       } else

   149           embedOrObject = (HTMLElement *)o;

   150       

   151       // If there was no URL or type defined in EMBED, try the OBJECT tag.

   152       if (url.isEmpty())

   153           url = o->m_url;

   154       if (serviceType.isEmpty())

   155           serviceType = o->m_serviceType;

   156       

   157       HashSet<StringImpl*, CaseInsensitiveHash<StringImpl*> > uniqueParamNames;

   158       

   159       // Scan the PARAM children.

   160       // Get the URL and type from the params if we don't already have them.

   161       // Get the attributes from the params if there is no EMBED tag.

   162       Node *child = o->firstChild();

   163       while (child && (url.isEmpty() || serviceType.isEmpty() || !embed)) {

   164           if (child->hasTagName(paramTag)) {

   165               HTMLParamElement* p = static_cast<HTMLParamElement*>(child);

   166               String name = p->name().lower();

   167               if (url.isEmpty() && (name == "src" || name == "movie" || name == "code" || name == "url"))

   168                   url = p->value();

   169               if (serviceType.isEmpty() && name == "type") {

   170                   serviceType = p->value();

   171                   int pos = serviceType.find(";");

   172                   if (pos != -1)

   173                       serviceType = serviceType.left(pos);

   174               }

   175               if (!embed && !name.isEmpty()) {

   176                   uniqueParamNames.add(p->name().impl());

   177                   paramNames.append(p->name());

   178                   paramValues.append(p->value());

   179               }

   180           }

   181           child = child->nextSibling();

   182       }

   183       

   184       // When OBJECT is used for an applet via Sun's Java plugin, the CODEBASE attribute in the tag

   185       // points to the Java plugin itself (an ActiveX component) while the actual applet CODEBASE is

   186       // in a PARAM tag. See <http://java.sun.com/products/plugin/1.2/docs/tags.html>. This means

   187       // we have to explicitly suppress the tag's CODEBASE attribute if there is none in a PARAM,

   188       // else our Java plugin will misinterpret it. [4004531]

   189       String codebase;

   190       if (!embed && MIMETypeRegistry::isJavaAppletMIMEType(serviceType)) {

   191           codebase = "codebase";

   192           uniqueParamNames.add(codebase.impl()); // pretend we found it in a PARAM already

   193       }

   194       

   195       // Turn the attributes of either the EMBED tag or OBJECT tag into arrays, but don't override PARAM values.

   196       NamedAttrMap* attributes = embedOrObject->attributes();

   197       if (attributes) {

   198           for (unsigned i = 0; i < attributes->length(); ++i) {

   199               Attribute* it = attributes->attributeItem(i);

   200               const AtomicString& name = it->name().localName();

   201               if (embed || !uniqueParamNames.contains(name.impl())) {

   202                   paramNames.append(name.domString());

   203                   paramValues.append(it->value().domString());

   204               }

   205           }

   206       }

   207       

   208       // If we still don't have a type, try to map from a specific CLASSID to a type.

   209       if (serviceType.isEmpty() && !o->m_classId.isEmpty())

   210           mapClassIdToServiceType(o->m_classId, serviceType);

   211       

   212       // If no URL and type, abort.

   213       if (url.isEmpty() && serviceType.isEmpty())

   214           return;

   215       if (!isURLAllowed(document(), url))

   216           return;

   217 

   218       // Find out if we support fallback content.

   219       m_hasFallbackContent = false;

   220       for (Node *child = o->firstChild(); child && !m_hasFallbackContent; child = child->nextSibling()) {

   221            if ((!child->isTextNode() && !child->hasTagName(embedTag) && !child->hasTagName(paramTag)) || // Discount <embed> and <param>

   222                (child->isTextNode() && !static_cast<Text*>(child)->containsOnlyWhitespace()))

   223               m_hasFallbackContent = true;

   224       }

   225       

   226       if (onlyCreateNonNetscapePlugins) {

   227           KURL completedURL;

   228           if (!url.isEmpty())

   229               completedURL = frame->loader()->completeURL(url);

   230         

   231           if (frame->loader()->client()->objectContentType(completedURL, serviceType) == ObjectContentNetscapePlugin)

   232               return;

   233       }

   234       

   235       bool success = frame->loader()->requestObject(this, url, AtomicString(o->name()), serviceType, paramNames, paramValues);

   236       if (!success && m_hasFallbackContent)

   237           o->renderFallbackContent();

   238   } else if (element()->hasTagName(embedTag)) {

   239       HTMLEmbedElement *o = static_cast<HTMLEmbedElement*>(element());

   240       url = o->url;

   241       serviceType = o->m_serviceType;

   242 

   243       if (url.isEmpty() && serviceType.isEmpty())

   244           return;

   245       if (!isURLAllowed(document(), url))

   246           return;

   247       

   248       // add all attributes set on the embed object

   249       NamedAttrMap* a = o->attributes();

   250       if (a) {

   251           for (unsigned i = 0; i < a->length(); ++i) {

   252               Attribute* it = a->attributeItem(i);

   253               paramNames.append(it->name().localName().domString());

   254               paramValues.append(it->value().domString());

   255           }

   256       }

   257       

   258       if (onlyCreateNonNetscapePlugins) {

   259           KURL completedURL;

   260           if (!url.isEmpty())

   261               completedURL = frame->loader()->completeURL(url);

   262           

   263           if (frame->loader()->client()->objectContentType(completedURL, serviceType) == ObjectContentNetscapePlugin)

   264               return;

   265           

   266       }

   267       

   268       frame->loader()->requestObject(this, url, o->getAttribute(nameAttr), serviceType, paramNames, paramValues);

   269   }

   270 #if PLATFORM(SYMBIAN)  

   271     else if (element()->hasTagName(bgsoundTag)) {      

   272     

   273         HTMLBgsoundElement *o = static_cast<HTMLBgsoundElement*>(element());

   274         url = o->url;

   275         serviceType = o->serviceType;

   276 

   277         if (url.isEmpty() && serviceType.isEmpty())

   278             return;

   279     

   280         if (!isURLAllowed(document(), url))

   281             return;

   282 

   283         // add all attributes set on the embed object

   284         NamedAttrMap* a = o->attributes();

   285         if (a) {

   286             bool lpattrfound = false;

   287 

   288             for (unsigned i = 0; i < a->length(); ++i) {

   289                 Attribute* it = a->attributeItem(i);

   290                 paramNames.append(it->name().localName().domString());              

   291 

   292                 if (it->name() == loopAttr) {                

   293 

   294                     lpattrfound = true;                              

   295 

   296                     if (it->value().toInt()>0 && it->value().toInt()<=50){

   297                         paramValues.append(it->value().domString());      

   298                     } else {

   299                         paramValues.append("50");                          

   300                     }                            

   301 

   302                 } else {

   303                     paramValues.append(it->value().domString());  

   304                 }                                                                

   305             }

   306 

   307             if (!lpattrfound) {

   308                 paramNames.append("loop");              

   309                 paramValues.append("50");  

   310             }          

   311         }

   312         

   313          frame->loader()->requestObject(this, url, o->getAttribute(nameAttr), serviceType, paramNames, paramValues);    

   314     }

   315 #endif

   316 }

   317 

   318 void RenderPartObject::layout()

   319 {

   320     ASSERT(needsLayout());

   321 

   322     FrameView* childFrameView = static_cast<FrameView*>(m_widget);

   323     RenderView* childRoot = 0;

   324     calcWidth();

   325     calcHeight();

   326     adjustOverflowForBoxShadow();

   327 

   328     RenderPart::layout();

   329 

   330     if (!m_widget && m_view)

   331         m_view->addWidgetToUpdate(this);

   332     

   333     setNeedsLayout(false);

   334 }

   335 

   336 void RenderPartObject::viewCleared()

   337 {

   338     if (element() && m_widget && m_widget->isFrameView()) {

   339         FrameView* view = static_cast<FrameView*>(m_widget);

   340         int marginw = -1;

   341         int marginh = -1;

   342         if (element()->hasTagName(iframeTag)) {

   343             HTMLIFrameElement* frame = static_cast<HTMLIFrameElement*>(element());

   344             marginw = frame->getMarginWidth();

   345             marginh = frame->getMarginHeight();

   346         }

   347         if (marginw != -1)

   348             view->setMarginWidth(marginw);

   349         if (marginh != -1)

   350             view->setMarginHeight(marginh);

   351     }

   352 }

   353 

   354 #if PLATFORM(SYMBIAN)

   355 bool RenderPartObject::isFocusable() const

   356 {

   357     if (m_widget)

   358         return m_widget->isFocusable();

   359     return false;

   360 }

   361 

   362 int RenderPartObject::calcReplacedWidth() const

   363 {

   364     if (m_widget && (m_widget->getView())->hasResized())  {        

   365         IntRect newRect = m_widget->frameGeometry();

   366         int newWidth = newRect.width();

   367         if (newWidth > 0) {

   368             return newWidth;

   369         }

   370     }

   371     return RenderReplaced::calcReplacedWidth();

   372 }

   373 

   374 int RenderPartObject::calcReplacedHeight() const

   375 {

   376     if (m_widget && (m_widget->getView())->hasResized())  {        

   377         IntRect newRect = m_widget->frameGeometry();

   378         int newHeight = newRect.height();

   379         if (newHeight > 0) {

   380             return newHeight;

   381         }       

   382     }

   383      

   384     return RenderReplaced::calcReplacedHeight();

   385 }

   386 

   387 

   388 #endif

   389 

   390 }