khtml_part.cpp

来自「最新Nokia手机浏览器全套源代码完美版。」· C++ 代码 · 共 2,085 行 · 第 1/5 页

{
#ifdef KJS_VERBOSE
  kdDebug(6070) << "KHTMLPart::executeScript n=" << n.nodeName().string().latin1() << "(" << (n.isNull() ? 0 : n.nodeType()) << ") " << script << endl;
#endif
  KJSProxy *proxy = jScript();

  if (!proxy || proxy->paused())
    return QVariant();
  d->m_runningScripts++;
  // If forceUserGesture is true, then make the script interpreter
  // treat it as if triggered by a user gesture even if there is no
  // current DOM event being processed.
  QVariant ret = proxy->evaluate( forceUserGesture ? QString::null : m_url.url(), 0, script, n );
  d->m_runningScripts--;
  if (!d->m_runningScripts && d->m_doc && !d->m_doc->parsing() && d->m_submitForm )
      submitFormAgain();
    DocumentImpl::updateDocumentsRendering();

#ifdef KJS_VERBOSE
  kdDebug(6070) << "KHTMLPart::executeScript - done" << endl;
#endif
  return ret;
}

bool KHTMLPart::scheduleScript(const DOM::Node &n, const QString& script)
{
    //kdDebug(6050) << "KHTMLPart::scheduleScript "<< script << endl;

    d->scheduledScript = script;
    d->scheduledScriptNode = n;

    return true;
}

QVariant KHTMLPart::executeScheduledScript()
{
  if( d->scheduledScript.isEmpty() )
    return QVariant();

  //kdDebug(6050) << "executing delayed " << d->scheduledScript << endl;

  QVariant ret = executeScript( d->scheduledScriptNode, d->scheduledScript );
  d->scheduledScript = QString();
  d->scheduledScriptNode = DOM::Node();

  return ret;
}

void KHTMLPart::setJavaEnabled( bool enable )
{
  d->m_bJavaForce = enable;
  d->m_bJavaOverride = true;
}

bool KHTMLPart::javaEnabled() const
{
#ifndef Q_WS_QWS
  if( d->m_bJavaOverride )
      return d->m_bJavaForce;
  return d->m_bJavaEnabled;
#else
  return false;
#endif
}

KJavaAppletContext *KHTMLPart::javaContext()
{
#ifndef Q_WS_QWS
  return d->m_javaContext;
#else
  return 0;
#endif
}

KJavaAppletContext *KHTMLPart::createJavaContext()
{
#ifndef Q_WS_QWS
  if ( !d->m_javaContext ) {
#if APPLE_CHANGES
      d->m_javaContext = new KJavaAppletContext(d->m_dcopobject, this);
#else
      d->m_javaContext = new KJavaAppletContext(d->m_dcopobject);
      connect( d->m_javaContext, SIGNAL(showStatus(const QString&)),
               this, SIGNAL(setStatusBarText(const QString&)) );
      connect( d->m_javaContext, SIGNAL(showDocument(const QString&, const QString&)),
               this, SLOT(slotShowDocument(const QString&, const QString&)) );
#endif
  }

  return d->m_javaContext;
#else
  return 0;
#endif
}

void KHTMLPart::setPluginsEnabled( bool enable )
{
  d->m_bPluginsForce = enable;
  d->m_bPluginsOverride = true;
}

bool KHTMLPart::pluginsEnabled() const
{
  if ( d->m_bPluginsOverride )
      return d->m_bPluginsForce;
  return d->m_bPluginsEnabled;
}

#if !APPLE_CHANGES

void KHTMLPart::slotShowDocument( const QString &url, const QString &target )
{
  // this is mostly copied from KHTMLPart::slotChildURLRequest. The better approach
  // would be to put those functions into a single one.
  khtml::ChildFrame *child = 0;
  KParts::URLArgs args;
  args.frameName = target;

  QString frameName = args.frameName.lower();
  if ( !frameName.isEmpty() )
  {
    if ( frameName == QString::fromLatin1( "_top" ) )
    {
      emit d->m_extension->openURLRequest( url, args );
      return;
    }
    else if ( frameName == QString::fromLatin1( "_blank" ) )
    {
      emit d->m_extension->createNewWindow( url, args );
      return;
    }
    else if ( frameName == QString::fromLatin1( "_parent" ) )
    {
      KParts::URLArgs newArgs( args );
      newArgs.frameName = QString::null;

      emit d->m_extension->openURLRequest( url, newArgs );
      return;
    }
    else if ( frameName != QString::fromLatin1( "_self" ) )
    {
      khtml::ChildFrame *_frame = recursiveFrameRequest( url, args );

      if ( !_frame )
      {
        emit d->m_extension->openURLRequest( url, args );
        return;
      }

      child = _frame;
    }
  }

  // TODO: handle child target correctly! currently the script are always executed fur the parent
  if ( url.find( QString::fromLatin1( "javascript:" ), 0, false ) == 0 ) {
      executeScript( KURL::decode_string( url.right( url.length() - 11) ) );
      return;
  }

  if ( child ) {
      requestObject( child, KURL(url), args );
  }  else if ( frameName==QString::fromLatin1("_self") ) // this is for embedded objects (via <object>) which want to replace the current document
  {
      KParts::URLArgs newArgs( args );
      newArgs.frameName = QString::null;
      emit d->m_extension->openURLRequest( KURL(url), newArgs );
  }
}

#endif // APPLE_CHANGES

void KHTMLPart::slotDebugDOMTree()
{
  if ( d->m_doc && d->m_doc->firstChild() )
    qDebug("%s", createMarkup(d->m_doc->firstChild()).latin1());
}

void KHTMLPart::slotDebugRenderTree()
{
#ifndef NDEBUG
  if ( d->m_doc )
#ifndef NOKIA_CHANGES
    d->m_doc->renderer()->printTree();
#else
  d->m_doc->renderer()->printTree(0, url().url());
  QTextStream::resetLogfile();
#endif
#endif
}

void KHTMLPart::setAutoloadImages( bool enable )
{
  if ( d->m_doc && d->m_doc->docLoader()->autoloadImages() == enable )
    return;

  if ( d->m_doc )
    d->m_doc->docLoader()->setAutoloadImages( enable );

#if !APPLE_CHANGES
  unplugActionList( "loadImages" );

  if ( enable ) {
    delete d->m_paLoadImages;
    d->m_paLoadImages = 0;
  }
  else if ( !d->m_paLoadImages )
    d->m_paLoadImages = new KAction( i18n( "Display Images on Page" ), "images_display", 0, this, SLOT( slotLoadImages() ), actionCollection(), "loadImages" );

  if ( d->m_paLoadImages ) {
    QPtrList<KAction> lst;
    lst.append( d->m_paLoadImages );
    plugActionList( "loadImages", lst );
  }
#endif
}

bool KHTMLPart::autoloadImages() const
{
  if ( d->m_doc )
    return d->m_doc->docLoader()->autoloadImages();

  return true;
}

void KHTMLPart::clear()
{
  if ( d->m_bCleared )
    return;
  d->m_bCleared = true;

  d->m_bClearing = true;

#if !APPLE_CHANGES
  {
    ConstFrameIt it = d->m_frames.begin();
    ConstFrameIt end = d->m_frames.end();
    for(; it != end; ++it )
    {
      // Stop HTMLRun jobs for frames
      if ( (*it).m_run )
        (*it).m_run->abort();
    }
  }

  {
    QValueList<khtml::ChildFrame>::ConstIterator it = d->m_objects.begin();
    QValueList<khtml::ChildFrame>::ConstIterator end = d->m_objects.end();
    for(; it != end; ++it )
    {
      // Stop HTMLRun jobs for objects
      if ( (*it).m_run )
        (*it).m_run->abort();
    }
  }


  findTextBegin(); // resets d->m_findNode and d->m_findPos
#endif

  d->m_mousePressNode = DOM::Node();


  if ( d->m_doc )
    d->m_doc->detach();

  // Moving past doc so that onUnload works.
  if ( d->m_jscript )
    d->m_jscript->clear();

  if ( d->m_view )
    d->m_view->clear();

  // do not dereference the document before the jscript and view are cleared, as some destructors
  // might still try to access the document.
  if ( d->m_doc )
    d->m_doc->deref();
  d->m_doc = 0;

  if (d->m_decoder)
    d->m_decoder->deref();
  d->m_decoder = 0;

  {
    ConstFrameIt it = d->m_frames.begin();
    ConstFrameIt end = d->m_frames.end();
    for(; it != end; ++it )
    {
      if ( (*it).m_part )
      {
        disconnectChild(&*it);
#if !APPLE_CHANGES
        partManager()->removePart( (*it).m_part );
#endif
        (*it).m_part->deref();
      }
    }
  }
  d->m_frames.clear();

  {
    ConstFrameIt it = d->m_objects.begin();
    ConstFrameIt end = d->m_objects.end();
    for(; it != end; ++it )
    {
      if ( (*it).m_part )
      {
#if !APPLE_CHANGES
        partManager()->removePart( (*it).m_part );
#endif
        (*it).m_part->deref();
      }
    }
  }
  d->m_objects.clear();

#ifndef Q_WS_QWS
  delete d->m_javaContext;
  d->m_javaContext = 0;
#endif

  d->m_scheduledRedirection = noRedirectionScheduled;
  d->m_delayRedirect = 0;
  d->m_redirectURL = QString::null;
  d->m_redirectReferrer = QString::null;
  d->m_redirectLockHistory = true;
  d->m_redirectUserGesture = false;
  d->m_bHTTPRefresh = false;
  d->m_bClearing = false;
  d->m_frameNameId = 1;
  d->m_bFirstData = true;

  d->m_bMousePressed = false;
#if NOKIA_CHANGES
  d->m_selection = khtml::Selection();
  d->m_firstFound = khtml::Selection();
  d->m_lastFound = khtml::Selection();
#endif

#ifndef QT_NO_CLIPBOARD
  connect( kapp->clipboard(), SIGNAL( selectionChanged()), SLOT( slotClearSelection()));
#endif

#if !APPLE_CHANGES
  d->m_totalObjectCount = 0;
  d->m_loadedObjects = 0;
  d->m_jobPercent = 0;
#endif

  if ( !d->m_haveEncoding )
    d->m_encoding = QString::null;
#ifdef SPEED_DEBUG
  d->m_parsetime.restart();
#endif
}

bool KHTMLPart::openFile()
{
  return true;
}

DOM::DocumentImpl *KHTMLPart::xmlDocImpl() const
{
    if ( d )
        return d->m_doc;
    return 0;
}

void KHTMLPart::replaceDocImpl(DocumentImpl* newDoc)
{
    if (d) {
        if (d->m_doc) {
            d->m_doc->detach();
            d->m_doc->deref();
        }
        d->m_doc = newDoc;
        if (newDoc)
            newDoc->ref();
    }
}

/*bool KHTMLPart::isSSLInUse() const
{
  return d->m_ssl_in_use;
}*/

void KHTMLPart::receivedFirstData()
{
    // Leave indented one extra for easier merging.

      //kdDebug( 6050 ) << "begin!" << endl;

    begin( d->m_workingURL, d->m_extension->urlArgs().xOffset, d->m_extension->urlArgs().yOffset );


    d->m_doc->docLoader()->setCachePolicy(d->m_cachePolicy);
    d->m_workingURL = KURL();

    d->m_cacheId = KHTMLPageCache::self()->createCacheEntry();

    // When the first data arrives, the metadata has just been made available
#if APPLE_CHANGES
    QString qData;
#else
    d->m_bSecurityInQuestion = false;
    d->m_ssl_in_use = (d->m_job->queryMetaData("ssl_in_use") == "TRUE");
    kdDebug(6050) << "SSL in use? " << d->m_job->queryMetaData("ssl_in_use") << endl;

    {
    KHTMLPart *p = parentPart();
    if (p && p->d->m_ssl_in_use != d->m_ssl_in_use) {
  while (p->parentPart()) p = p->parentPart();

  p->d->m_paSecurity->setIcon( "halfencrypted" );
        p->d->m_bSecurityInQuestion = true;
  kdDebug(6050) << "parent setIcon half done." << endl;
    }
    }