C++ KHTMLPart::document方法代码示例

static bool orientationMediaFeatureEval(CSSValueImpl *value, RenderStyle *, KHTMLPart *part,  MediaFeaturePrefix /*op*/)
{
    if (value) {
        CSSPrimitiveValueImpl *pv = static_cast<CSSPrimitiveValueImpl *>(value);
        if (!value->isPrimitiveValue() || pv->primitiveType() != CSSPrimitiveValue::CSS_IDENT ||
                (pv->getIdent() != CSS_VAL_PORTRAIT && pv->getIdent() != CSS_VAL_LANDSCAPE)) {
            return false;
        }

        KHTMLPart *rootPart = part;
        while (rootPart->parentPart()) {
            rootPart = rootPart->parentPart();
        }
        DOM::DocumentImpl *doc =  static_cast<DOM::DocumentImpl *>(rootPart->document().handle());
        QPaintDevice *pd = doc->paintDevice();
        bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
        if (printing) {
            if (pd->width() > pd->height()) {
                return (pv->getIdent() == CSS_VAL_LANDSCAPE);
            }
        } else {
            if (part->view()->visibleWidth() > part->view()->visibleHeight()) {
                return (pv->getIdent() == CSS_VAL_LANDSCAPE);
            }
        }
        return (pv->getIdent() == CSS_VAL_PORTRAIT);
    }
    return false;
}

static bool monochromeMediaFeatureEval(CSSValueImpl* value, RenderStyle*, KHTMLPart* part,  MediaFeaturePrefix op)
{
    KHTMLPart* rootPart = part;
    while (rootPart->parentPart()) rootPart = rootPart->parentPart();
    DOM::DocumentImpl *doc =  static_cast<DOM::DocumentImpl*>(rootPart->document().handle());
    QPaintDevice *pd = doc->paintDevice(); 
    bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
    int depth = 0;
    if (printing) {
        if (pd->numColors() < 2)
            depth = 1;
        // assume printer is either b&w or color.
    } else {
        int sn = QApplication::desktop()->screenNumber( rootPart->view() );
        if (QApplication::desktop()->screen(sn)->depth() == 1)
            depth = 1;
        else if (QColormap::instance(sn).mode() == QColormap::Gray)
            depth = QApplication::desktop()->screen(sn)->depth();
    }
    if (value)
    {
        float number = 0;
        return numberValue(value, number) && compareValue(depth, static_cast<int>(number), op);
    }
    return depth;
}

static bool aspect_ratioMediaFeatureEval(CSSValueImpl *value, RenderStyle *, KHTMLPart *part,  MediaFeaturePrefix op)
{
    if (value) {
        KHTMLPart *rootPart = part;
        while (rootPart->parentPart()) {
            rootPart = rootPart->parentPart();
        }
        DOM::DocumentImpl *doc =  static_cast<DOM::DocumentImpl *>(rootPart->document().handle());
        QPaintDevice *pd = doc->paintDevice();
        bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
        QSize vs;
        int h = 0, v = 0;
        if (printing) {
            vs = QSize(pd->width(), pd->height());
        } else {
            vs = QSize(part->view()->visibleWidth(), part->view()->visibleHeight());
        }
        if (parseAspectRatio(value, h, v)) {
            return v != 0  && compareValue(vs.width() * v, vs.height() * h, op);
        }
        return false;
    }
    // ({,min-,max-}aspect-ratio)
    // assume if we have a viewport, its aspect ratio is non-zero
    return true;
}

static bool device_aspect_ratioMediaFeatureEval(CSSValueImpl *value, RenderStyle *, KHTMLPart *part,  MediaFeaturePrefix op)
{
    if (value) {
        KHTMLPart *rootPart = part;
        while (rootPart->parentPart()) {
            rootPart = rootPart->parentPart();
        }
        DOM::DocumentImpl *doc =  static_cast<DOM::DocumentImpl *>(rootPart->document().handle());
        QPaintDevice *pd = doc->paintDevice();
        bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
        QRect sg;
        int h = 0, v = 0;
        if (printing) {
            sg = QRect(0, 0, pd->width(), pd->height());
        } else {
            sg = QApplication::desktop()->screen(QApplication::desktop()->screenNumber(rootPart->view()))->rect();
        }
        if (parseAspectRatio(value, h, v)) {
            return v != 0  && compareValue(sg.width() * v, sg.height() * h, op);
        }
        return false;
    }

    // ({,min-,max-}device-aspect-ratio)
    // assume if we have a device, its aspect ratio is non-zero
    return true;
}

static bool colorMediaFeatureEval(CSSValueImpl *value, RenderStyle *, KHTMLPart *part,  MediaFeaturePrefix op)
{
    KHTMLPart *rootPart = part;
    while (rootPart->parentPart()) {
        rootPart = rootPart->parentPart();
    }
    DOM::DocumentImpl *doc =  static_cast<DOM::DocumentImpl *>(rootPart->document().handle());
    QPaintDevice *pd = doc->paintDevice();
    bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
    int bitsPerComponent = 0;
    if (printing) {
        if (pd->colorCount() > 2) {
            bitsPerComponent = pd->depth() / 3;
        }
        // assume printer is either b&w or color.
    } else {
        int sn = QApplication::desktop()->screenNumber(rootPart->view());
        if (QColormap::instance(sn).mode() != QColormap::Gray) {
            bitsPerComponent = QApplication::desktop()->screen(sn)->depth() / 3;
        }
    }
    if (value && bitsPerComponent) {
        float number = 0;
        return numberValue(value, number) && compareValue(bitsPerComponent, static_cast<int>(number), op);
    }
    return bitsPerComponent;
}

static bool color_indexMediaFeatureEval(CSSValueImpl *value, RenderStyle *, KHTMLPart *part,  MediaFeaturePrefix op)
{
    KHTMLPart *rootPart = part;
    while (rootPart->parentPart()) {
        rootPart = rootPart->parentPart();
    }
    DOM::DocumentImpl *doc =  static_cast<DOM::DocumentImpl *>(rootPart->document().handle());
    QPaintDevice *pd = doc->paintDevice();
    bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
    unsigned int numColors = 0;
    if (printing) {
        numColors = pd->colorCount();
    } else {
        int sn = QApplication::desktop()->screenNumber(rootPart->view());
        numColors = QApplication::desktop()->screen(sn)->colorCount();
    }
    if (numColors == INT_MAX) {
        numColors = UINT_MAX;
    }
    if (value) {
        float number = 0;
        return numberValue(value, number) && compareValue(numColors, static_cast<unsigned int>(number), op);
    }

    return numColors;
}

static bool heightMediaFeatureEval(CSSValueImpl* value, RenderStyle* style, KHTMLPart* part,  MediaFeaturePrefix op)
{
    KHTMLPart* rootPart = part;
    while (rootPart->parentPart()) rootPart = rootPart->parentPart();
    DOM::DocumentImpl *doc =  static_cast<DOM::DocumentImpl*>(rootPart->document().handle());
    QPaintDevice *pd = doc->paintDevice(); 
    bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
    int height;
    if (printing)
        height = pd->height();
    else {
        height = part->view()->visibleHeight();
        doc = static_cast<DOM::DocumentImpl*>(part->document().handle());
    }
    int logicalDpiY = doc->logicalDpiY();
    if (value)
        return value->isPrimitiveValue() && compareValue(height, static_cast<CSSPrimitiveValueImpl*>(value)->computeLength(style, logicalDpiY), op);

    return height > 0;
}

static bool device_widthMediaFeatureEval(CSSValueImpl* value, RenderStyle* style, KHTMLPart* part,  MediaFeaturePrefix op)
{
    if (value) {
        KHTMLPart* rootPart = part;
        while (rootPart->parentPart()) rootPart = rootPart->parentPart();
        DOM::DocumentImpl *doc =  static_cast<DOM::DocumentImpl*>(rootPart->document().handle());
        QPaintDevice *pd = doc->paintDevice(); 
        bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
        int width;
        if (printing)
            width = pd->width();
        else {
            width = QApplication::desktop()->screen(QApplication::desktop()->screenNumber( rootPart->view() ))->rect().width();
            doc = static_cast<DOM::DocumentImpl*>(part->document().handle());
        }
        int logicalDpiY = doc->logicalDpiY();
        return value->isPrimitiveValue() && compareValue(width, static_cast<CSSPrimitiveValueImpl*>(value)->computeLength(style,logicalDpiY), op);
    }
    // ({,min-,max-}device-width)
    // assume if we have a device, assume non-zero
    return true;
}

static bool widthMediaFeatureEval(CSSValueImpl *value, RenderStyle *style, KHTMLPart *part,  MediaFeaturePrefix op)
{
    KHTMLPart *rootPart = part;
    while (rootPart->parentPart()) {
        rootPart = rootPart->parentPart();
    }
    DOM::DocumentImpl *doc =  static_cast<DOM::DocumentImpl *>(rootPart->document().handle());
    QPaintDevice *pd = doc->paintDevice();
    bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
    int width;
    if (printing) {
        width = pd->width();
    } else {
        width = part->view()->visibleWidth();
        doc = static_cast<DOM::DocumentImpl *>(part->document().handle());
    }
    int logicalDpiY = doc->logicalDpiY();
    if (value) {
        return value->isPrimitiveValue() && compareValue(width, static_cast<CSSPrimitiveValueImpl *>(value)->computeLength(style, style, logicalDpiY), op);
    }

    return width > 0;
}

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 KHTMLPluginKTTSD::slotReadOut()
{
    // The parent is assumed to be a KHTMLPart
    if(!parent()->inherits("KHTMLPart"))
        QMessageBox::warning(0, i18n("Cannot Read source"), i18n("You cannot read anything except web pages with\n"
                                                                 "this plugin, sorry."));
    else
    {
        // If KTTSD not running, start it.
        DCOPClient *client = kapp->dcopClient();
        if(!client->isApplicationRegistered("kttsd"))
        {
            QString error;
            if(kapp->startServiceByDesktopName("kttsd", QStringList(), &error))
                QMessageBox::warning(0, i18n("Starting KTTSD Failed"), error);
        }

        // Find out if KTTSD supports xhtml (rich speak).
        QByteArray data;
        QBuffer dataBuf(data);
        QDataStream arg;
        dataBuf.open(IO_WriteOnly);
        arg.setDevice(&dataBuf);
        arg << "" << KSpeech::mtHtml;
        QCString replyType;
        QByteArray replyData;
        bool supportsXhtml = false;
        if(!client->call("kttsd", "KSpeech", "supportsMarkup(QString,uint)", data, replyType, replyData, true))
            QMessageBox::warning(0, i18n("DCOP Call Failed"), i18n("The DCOP call supportsMarkup failed."));
        else
        {
            QDataStream reply(replyData, IO_ReadOnly);
            reply >> supportsXhtml;
        }

        KHTMLPart *part = (KHTMLPart *)parent();

        QString query;
        if(supportsXhtml)
        {
            kdDebug() << "KTTS claims to support rich speak (XHTML to SSML)." << endl;
            if(part->hasSelection())
                query = part->selectedTextAsHTML();
            else
            {
                // TODO: Fooling around with the selection probably has unwanted
                // side effects, but until a method is supplied to get valid xhtml
                // from entire document..
                // query = part->document().toString().string();
                part->selectAll();
                query = part->selectedTextAsHTML();
                // Restore no selection.
                part->setSelection(part->document().createRange());
            }
        }
        else
        {
            if(part->hasSelection())
                query = part->selectedText();
            else
                query = part->htmlDocument().body().innerText().string();
        }
        // kdDebug() << "KHTMLPluginKTTSD::slotReadOut: query = " << query << endl;

        dataBuf.at(0); // reset data
        arg << query << "";
        if(!client->call("kttsd", "KSpeech", "setText(QString,QString)", data, replyType, replyData, true))
            QMessageBox::warning(0, i18n("DCOP Call Failed"), i18n("The DCOP call setText failed."));
        dataBuf.at(0);
        arg << 0;
        if(!client->call("kttsd", "KSpeech", "startText(uint)", data, replyType, replyData, true))
            QMessageBox::warning(0, i18n("DCOP Call Failed"), i18n("The DCOP call startText failed."));
    }
}