render_frames.cpp

最新Nokia手机浏览器全套源代码完美版。

      }
      
      // Turn the attributes of either the EMBED tag or OBJECT tag into arrays, but don't override PARAM values.
      NamedAttrMapImpl* attributes = embedOrObject->attributes();
      if (attributes) {
          for (unsigned long i = 0; i < attributes->length(); ++i) {
              AttributeImpl* it = attributes->attributeItem(i);
              QString name = o->getDocument()->attrName(it->id()).string();
              if (embed || uniqueParamNames.find(name) == 0) {
                  paramNames.append(name);
                  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() && !o->classId.isEmpty())
          mapClassIdToServiceType(o->classId, serviceType);
      
      // If no URL and type, abort.
      if (url.isEmpty() && serviceType.isEmpty())
          return;
      if (!isURLAllowed(document(), url))
          return;

      // Find out if we support fallback content.
      m_hasFallbackContent = false;
      for (NodeImpl *child = o->firstChild(); child && !m_hasFallbackContent; child = child->nextSibling()) {
          if ((!child->isTextNode() && child->id() != ID_EMBED && child->id() != ID_PARAM) || // Discount <embed> and <param>
              (child->isTextNode() && !child->containsOnlyWhitespace()))
              m_hasFallbackContent = true;
      }
      bool success = part->requestObject( this, url, serviceType, paramNames, paramValues );
      if (!success && m_hasFallbackContent)
          o->renderFallbackContent();
  } else if ( element()->id() == ID_EMBED ) {

      HTMLEmbedElementImpl *o = static_cast<HTMLEmbedElementImpl *>(element());
      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
      NamedAttrMapImpl* a = o->attributes();
      if (a) {
          for (unsigned long i = 0; i < a->length(); ++i) {
              AttributeImpl* it = a->attributeItem(i);
              paramNames.append(o->getDocument()->attrName(it->id()).string());
              paramValues.append(it->value().string());
          }
      }
      part->requestObject( this, url, serviceType, paramNames, paramValues );
#if NOKIA_CHANGES
  } else if ( element()->id() == ID_BGSOUND ) {

      HTMLEmbedElementImpl *o = static_cast<HTMLEmbedElementImpl *>(element());
      url = o->url;
      serviceType = o->serviceType;

      if ( url.isEmpty() && serviceType.isEmpty() ) {
#ifdef DEBUG_LAYOUT
          kdDebug() << "RenderPartObject::close - empty url and serverType" << endl;
#endif
          return;
      }
      // Avoid infinite recursion. If the plug-in's URL is the same as the part's URL, infinite frames may be created.
      if (!url.isEmpty() && part->completeURL(url) == part->baseURL()) {
          return;
      }
      // parse and add the attributes 
      // Currently specification asked to specify 50 whenever it is out range of 50
      // or any other value
      
      // In case the loop tag was not specified, we want to take 50 in default
      // as well 
      
      NamedAttrMapImpl* a = o->attributes();
      if (a) {
          bool LoopTag = false; 
          for (unsigned long i = 0; i < a->length(); ++i) {
              AttributeImpl* it = a->attributeItem(i);
              paramNames.append(o->getDocument()->attrName(it->id()).string());
              if ( it->id() == ATTR_LOOP ) 
              {
                  if (it->value().toInt() > 0 && it->value().toInt() <= 50 ) {
                      paramValues.append(it->value().string());
                  } else {
                    paramValues.append("50");
                  }
                  LoopTag = true; 
              } else {
                  paramValues.append(it->value().string());
              }
          }
          if (!LoopTag) 
          {
            paramNames.append("loop");
            paramValues.append("50");
          }
      }
      part->requestObject( this, url, serviceType, paramNames, paramValues );
#endif 
  } else {
      assert(element()->id() == ID_IFRAME);
      HTMLIFrameElementImpl *o = static_cast<HTMLIFrameElementImpl *>(element());
      url = o->url.string();
      if (!isURLAllowed(document(), url))
          return;
      if (url.isEmpty())
      url = "about:blank";
      KHTMLView *v = static_cast<KHTMLView *>(m_view);
      bool requestSucceeded = v->part()->requestFrame( this, url, o->name.string(), QStringList(), QStringList(), true );
      if (requestSucceeded && url == "about:blank") {
      KHTMLPart *newPart = v->part()->findFrame( o->name.string() );
      if (newPart && newPart->xmlDocImpl()) {
          newPart->xmlDocImpl()->setBaseURL( v->part()->baseURL().url() );
      }
      }
  }
}

bool RenderPartObject::partLoadingErrorNotify( khtml::ChildFrame *childFrame, const KURL& url, const QString& serviceType )
{
    KHTMLPart *part = static_cast<KHTMLView *>(m_view)->part();
    //kdDebug() << "RenderPartObject::partLoadingErrorNotify serviceType=" << serviceType << endl;
    // Check if we just tried with e.g. nsplugin
    // and fallback to the activexhandler if there is a classid
    // and a codebase, where we may download the ocx if it's missing
    if( serviceType != "application/x-activex-handler" && element()->id()==ID_OBJECT ) {

        // check for embed child object
        HTMLObjectElementImpl *o = static_cast<HTMLObjectElementImpl *>(element());
        HTMLEmbedElementImpl *embed = 0;
        NodeImpl *child = o->firstChild();
        while ( child ) {
            if ( child->id() == ID_EMBED )
                embed = static_cast<HTMLEmbedElementImpl *>( child );

            child = child->nextSibling();
        }
        if( embed && !o->classId.isEmpty() &&
            !( static_cast<ElementImpl *>(o)->getAttribute(ATTR_CODEBASE).string() ).isEmpty() )
        {
            KParts::URLArgs args;
            args.serviceType = "application/x-activex-handler";
            if (part->requestObject( childFrame, url, args ))
                return true; // success
        }
    }
    // Dissociate ourselves from the current event loop (to prevent crashes
    // due to the message box staying up)
    QTimer::singleShot( 0, this, SLOT( slotPartLoadingErrorNotify() ) );
    Tokenizer *tokenizer = static_cast<DOM::DocumentImpl *>(part->document().handle())->tokenizer();
    if (tokenizer) tokenizer->setOnHold( true );
    slotPartLoadingErrorNotify();
    if (tokenizer) tokenizer->setOnHold( false );
    return false;
}

void RenderPartObject::slotPartLoadingErrorNotify()
{
#if APPLE_CHANGES
    // FIXME: What are we going to do for this case?
#else
    // First we need to find out the servicetype - again - this code is too duplicated !
    HTMLEmbedElementImpl *embed = 0;
    QString serviceType;
    if( element()->id()==ID_OBJECT ) {

        // check for embed child object
        HTMLObjectElementImpl *o = static_cast<HTMLObjectElementImpl *>(element());
        serviceType = o->serviceType;
        NodeImpl *child = o->firstChild();
        while ( child ) {
            if ( child->id() == ID_EMBED )
                embed = static_cast<HTMLEmbedElementImpl *>( child );

            child = child->nextSibling();
        }

    } else if( element()->id()==ID_EMBED ) {
        embed = static_cast<HTMLEmbedElementImpl *>(element());
    }
    if ( embed )
    serviceType = embed->serviceType;

    KHTMLPart *part = static_cast<KHTMLView *>(m_view)->part();
    KParts::BrowserExtension *ext = part->browserExtension();
    if( embed && !embed->pluginPage.isEmpty() && ext ) {
        // Prepare the mimetype to show in the question (comment if available, name as fallback)
        QString mimeName = serviceType;
        KMimeType::Ptr mime = KMimeType::mimeType(serviceType);
        if ( mime->name() != KMimeType::defaultMimeType() )
            mimeName = mime->comment();
        // Prepare the URL to show in the question (host only if http, to make it short)
        KURL pluginPageURL( embed->pluginPage );
        QString shortURL = pluginPageURL.protocol() == "http" ? pluginPageURL.host() : pluginPageURL.prettyURL();
        int res = KMessageBox::questionYesNo( m_view,
            i18n("No plugin found for '%1'.\nDo you want to download one from %2?").arg(mimeName).arg(shortURL),
        i18n("Missing plugin"), QString::null, QString::null, QString("plugin-")+serviceType);
    if ( res == KMessageBox::Yes )
    {
          // Display vendor download page
          ext->createNewWindow( pluginPageURL );
    }
    }
#endif // APPLE_CHANGES
}

void RenderPartObject::layout( )
{
    KHTMLAssert( needsLayout() );
    KHTMLAssert( minMaxKnown() );

#if !APPLE_CHANGES
    int m_oldwidth = m_width;
    int m_oldheight = m_height;
#endif

    calcWidth();
    calcHeight();

    RenderPart::layout();

    setNeedsLayout(false);
}

void RenderPartObject::slotViewCleared()
{
  if(element() && m_widget && m_widget->inherits("QScrollView") ) {
#ifdef DEBUG_LAYOUT
      kdDebug(6031) << "iframe is a scrollview!" << endl;
#endif
      QScrollView *view = static_cast<QScrollView *>(m_widget);
      int frameStyle = QFrame::NoFrame;
      QScrollView::ScrollBarMode scroll = QScrollView::Auto;
      int marginw = -1;
      int marginh = -1;
      if ( element()->id() == ID_IFRAME) {
      HTMLIFrameElementImpl *frame = static_cast<HTMLIFrameElementImpl *>(element());
      if(frame->frameBorder)
          frameStyle = QFrame::Box;
          scroll = frame->scrolling;
      marginw = frame->marginWidth;
      marginh = frame->marginHeight;
      }
      view->setFrameStyle(frameStyle);

#if !APPLE_CHANGES
      view->setVScrollBarMode(scroll);
      view->setHScrollBarMode(scroll);
#endif

      if(view->inherits("KHTMLView")) {
#ifdef DEBUG_LAYOUT
          kdDebug(6031) << "frame is a KHTMLview!" << endl;
#endif
          KHTMLView *htmlView = static_cast<KHTMLView *>(view);
          htmlView->setIgnoreWheelEvents( element()->id() == ID_IFRAME );
          if(marginw != -1) htmlView->setMarginWidth(marginw);
          if(marginh != -1) htmlView->setMarginHeight(marginh);
        }
  }
}

#if NOKIA_CHANGES
// Calculate the replaced width
int RenderPartObject::calcReplacedWidth() const
{
    if (m_widget && m_widget->hasResized()) 
    {
        QRect newRect = m_widget->frameGeometry();
        int newWidth = newRect.width();
        if (newWidth > 0) {
            return newWidth;
        }
    }
    
    return RenderReplaced::calcReplacedWidth();
}

// Calculate the replaced height
int RenderPartObject::calcReplacedHeight() const
{
    if (m_widget && m_widget->hasResized()) 
    {
        QRect newRect = m_widget->frameGeometry();
        int newHeight = newRect.height();
        if (newHeight > 0) {
            return newHeight;
        }       
    }
     
    return RenderReplaced::calcReplacedHeight();
}
#ifdef RD_32_BROWSER
bool RenderPartObject::focusable() const
{
    if( m_widget ) {
        return m_widget->focusable();
    }
    else
        return false;
}
#endif

#endif // NOKIA_CHANGES


#if APPLE_CHANGES
// FIXME: This should not be necessary.  Remove this once WebKit knows to properly schedule
// layouts using WebCore when objects resize.
void RenderPart::updateWidgetPositions()
{
    if (!m_widget)
        return;
    
    int x, y, width, height;
    absolutePosition(x,y);
    x += borderLeft() + paddingLeft();
    y += borderTop() + paddingTop();
    width = m_width - borderLeft() - borderRight() - paddingLeft() - paddingRight();
    height = m_height - borderTop() - borderBottom() - paddingTop() - paddingBottom();
    QRect newBounds(x,y,width,height);
    if (newBounds != m_widget->frameGeometry()) {
        // The widget changed positions.  Update the frame geometry.
        RenderArena *arena = ref();
        element()->ref();
        m_widget->setFrameGeometry(newBounds);
        element()->deref();
        deref(arena);
        
        QScrollView *view = static_cast<QScrollView *>(m_widget);
#if !NOKIA_CHANGES
        if (view && view->inherits("KHTMLView"))
            static_cast<KHTMLView*>(view)->layout();
#endif
    }
}
#endif

#include "render_frames.moc"