C++ QWebFrame::hitTestContent方法代码示例

void EWAHTMLSelector::mouseMoveEvent( QMouseEvent *event )
{
    if( !m_webViewPtr )
    {
        return;
    }

    QPoint pnt = mapFromGlobal( event->globalPos() );
    QWebFrame *pFrame = m_webViewPtr->page()->frameAt( pnt );
    if( pFrame )
    {
        QWebElement element = pFrame->hitTestContent( m_webViewPtr->mapFromGlobal( event->globalPos() ) ).element();
        if( m_element != element )
        {
            m_element = element;
            update();
            QString str = tr( "Inner xml: %1\nOuter xml: %2\nPlain text: %3" )
                          .arg( m_element.toInnerXml() )
                          .arg( m_element.toOuterXml() )
                          .arg( m_element.toPlainText() );
            emit signalHtmlElement( str );

        }
    }
}

QWebFrame *QtScrollerFilter::scrollingFrameAt_QWebView(QWebView *view, const QPoint &pos) const
{
    if (!view->page())
         return 0;

    QWebFrame *mainFrame = view->page()->mainFrame();
    QWebHitTestResult hitTest = mainFrame->hitTestContent(pos);
    QWebFrame *hitFrame = hitTest.frame();
         
    if (!hitFrame)
        return 0;

    QRect vsbrect = hitFrame->scrollBarGeometry(Qt::Vertical);
    QRect hsbrect = hitFrame->scrollBarGeometry(Qt::Horizontal);

    if (!vsbrect.isEmpty() && vsbrect.contains(hitTest.pos() - hitFrame->scrollPosition()))
        return 0;
    if (!hsbrect.isEmpty() && hsbrect.contains(hitTest.pos() - hitFrame->scrollPosition()))
        return 0;

    QSize range = hitFrame->contentsSize() - hitFrame->geometry().size();
    
    while (hitFrame && range.width() <= 1 && range.height() <= 1)
        hitFrame = hitFrame->parentFrame();
    return hitFrame;
}

QUrl WebView::clickedLink(const QPoint &pos) const
{
    QWebFrame *frame = page()->frameAt(pos);
    if (!frame)
        return QUrl();

    return frame->hitTestContent(pos).linkUrl();
}

QWebHitTestResult QWebFrameProto::hitTestContent(const QPoint & pos) const
{
  scriptDeprecated("QWebFrame will not be available in future versions");
  QWebFrame *item = qscriptvalue_cast<QWebFrame*>(thisObject());
  if (item)
    return item->hitTestContent(pos);
  return QWebHitTestResult();
}

    // Returns the innermost frame at the given position that can scroll.
    QWebFrame* scrollingFrameAt(const QPoint& pos) const
    {
        QWebFrame* hitFrame = 0;
        if (m_view) {
            QWebFrame* frame = m_view->page()->mainFrame();
            hitFrame = frame->hitTestContent(pos).frame();
            QSize range = hitFrame->contentsSize() - hitFrame->geometry().size();

            while (hitFrame && range.width() <= 1 && range.height() <= 1)
                hitFrame = hitFrame->parentFrame();

            return hitFrame;
        }
    }

void ClickToFlash::findElement()
{
  if (!loadButton_)
    return;

  QPoint objectPos = page_->view()->mapFromGlobal(loadButton_->mapToGlobal(loadButton_->pos()));
  QWebFrame* objectFrame = page_->frameAt(objectPos);
  QWebHitTestResult hitResult;
  QWebElement hitElement;

  if (objectFrame) {
    hitResult = objectFrame->hitTestContent(objectPos);
    hitElement = hitResult.element();
  }

  if (!hitElement.isNull() && (hitElement.tagName().compare("embed", Qt::CaseInsensitive) == 0 ||
                               hitElement.tagName().compare("object", Qt::CaseInsensitive) == 0)) {
    element_ = hitElement;
    return;
  }

  // HitTestResult failed, trying to find element by src
  // attribute in elements at all frames on page (less accurate)

  QList<QWebFrame*> frames;
  frames.append(objectFrame);
  frames.append(page_->mainFrame());

  while (!frames.isEmpty()) {
    QWebFrame* frame = frames.takeFirst();
    if (!frame) {
      continue;
    }
    QWebElement docElement = frame->documentElement();

    QWebElementCollection elements;
    elements.append(docElement.findAll(QLatin1String("embed")));
    elements.append(docElement.findAll(QLatin1String("object")));

    foreach (const QWebElement &element, elements) {
      if (!checkElement(element) && !checkUrlOnElement(element)) {
        continue;
      }
      element_ = element;
      return;
    }
    frames += frame->childFrames();
  }
}

void KWebKitPart::slotLinkHovered(const QString& _link, const QString& /*title*/, const QString& /*content*/)
{
    QString message;

    if (_link.isEmpty()) {
        message = QL1S("");
        emit m_browserExtension->mouseOverInfo(KFileItem());
    } else {
        QUrl linkUrl (_link);
        const QString scheme = linkUrl.scheme();

        // Protect the user against URL spoofing!
        linkUrl.setUserName(QString());
        const QString link (linkUrl.toString());

        if (QString::compare(scheme, QL1S("mailto"), Qt::CaseInsensitive) == 0) {
            message += i18nc("status bar text when hovering email links; looks like \"Email: [email protected] - CC: [email protected] -BCC: [email protected] - Subject: Hi translator\"", "Email: ");

            // Workaround: for QUrl's parsing deficiencies of "mailto:[email protected]".
            if (!linkUrl.hasQuery())
              linkUrl = QUrl(scheme + '?' + linkUrl.path());

            QMap<QString, QStringList> fields;
            QList<QPair<QString, QString> > queryItems = linkUrl.queryItems();
            const int count = queryItems.count();

            for(int i = 0; i < count; ++i) {
                const QPair<QString, QString> queryItem (queryItems.at(i));
                //kDebug() << "query: " << queryItem.first << queryItem.second;
                if (queryItem.first.contains(QL1C('@')) && queryItem.second.isEmpty())
                    fields["to"] << queryItem.first;
                if (QString::compare(queryItem.first, QL1S("to"), Qt::CaseInsensitive) == 0)
                    fields["to"] << queryItem.second;
                if (QString::compare(queryItem.first, QL1S("cc"), Qt::CaseInsensitive) == 0)
                    fields["cc"] << queryItem.second;
                if (QString::compare(queryItem.first, QL1S("bcc"), Qt::CaseInsensitive) == 0)
                    fields["bcc"] << queryItem.second;
                if (QString::compare(queryItem.first, QL1S("subject"), Qt::CaseInsensitive) == 0)
                    fields["subject"] << queryItem.second;
            }

            if (fields.contains(QL1S("to")))
                message += fields.value(QL1S("to")).join(QL1S(", "));
            if (fields.contains(QL1S("cc")))
                message += i18nc("status bar text when hovering email links; looks like \"Email: [email protected] - CC: [email protected] -BCC: [email protected] - Subject: Hi translator\"", " - CC: ") + fields.value(QL1S("cc")).join(QL1S(", "));
            if (fields.contains(QL1S("bcc")))
                message += i18nc("status bar text when hovering email links; looks like \"Email: [email protected] - CC: [email protected] -BCC: [email protected] - Subject: Hi translator\"", " - BCC: ") + fields.value(QL1S("bcc")).join(QL1S(", "));
            if (fields.contains(QL1S("subject")))
                message += i18nc("status bar text when hovering email links; looks like \"Email: [email protected] - CC: [email protected] -BCC: [email protected] - Subject: Hi translator\"", " - Subject: ") + fields.value(QL1S("subject")).join(QL1S(" "));
        } else if (scheme == QL1S("javascript")) {
            message = KStringHandler::rsqueeze(link, 150);
            if (link.startsWith(QL1S("javascript:window.open")))
                message += i18n(" (In new window)");
        } else {
            message = link;
            QWebFrame* frame = page() ? page()->currentFrame() : 0;
            if (frame) {
                QWebHitTestResult result = frame->hitTestContent(page()->view()->mapFromGlobal(QCursor::pos()));
                QWebFrame* target = result.linkTargetFrame();
                if (frame->parentFrame() && target == frame->parentFrame()) {
                    message += i18n(" (In parent frame)");
                } else if (!target || target != frame) {
                    message += i18n(" (In new window)");
                }
            }
            KFileItem item (linkUrl, QString(), KFileItem::Unknown);
            emit m_browserExtension->mouseOverInfo(item);
        }
    }

    emit setStatusBarText(message);
}

bool MyWebView::eventFilter(QObject *watched, QEvent *event)
{
	if (!m_boolEnableEvtProcess) { return false; }

	if (event->type() == QEvent::MouseMove)
	{
		QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
		QWebView *view          = dynamic_cast<QWebView*>(watched);
		QPoint pos              = view->mapFromGlobal(mouseEvent->globalPos());
		QWebFrame *frame        = view->page()->frameAt(mouseEvent->pos());
		if (frame!=NULL)
		{
			QWebHitTestResult hitTestResult = frame->hitTestContent(pos);
			// if the hovered elem is not the same as the previously hovered
			if (hitTestResult.element() != m_old_hover_element)
			{
				QWebElement elemCurrent = hitTestResult.element();
				// if dragging, overwrite with closer WContainer
				if (m_boolIsDraggingWidget)
				{
					elemCurrent = FindCloserContainer(elemCurrent);
				}
				if (!elemCurrent.isNull())
				{
					// Change color
					ChangeHoveredElemColor(elemCurrent);
					// Message to print
					m_strCurrentElemId = elemCurrent.attribute("id");
					// Emit message
					QStringList strlistClasses = elemCurrent.classes();
					strlistClasses.removeAll(g_strHighlightClassName);
					Q_EMIT mouseMovedOverElem(m_strCurrentElemId, strlistClasses.join(' '));
				}
			}
		}
	}
	else if (event->type() == QEvent::MouseButtonPress)
	{
		QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
		if (mouseEvent->button() == Qt::LeftButton)
		{
			QWebView *view = dynamic_cast<QWebView*>(watched);
			QPoint pos = view->mapFromGlobal(mouseEvent->globalPos());
			QWebFrame *frame = view->page()->frameAt(mouseEvent->pos());
			if (frame != NULL)
			{
				QWebHitTestResult hitTestResult = frame->hitTestContent(pos);
                QWebElement welemTemp = hitTestResult.element();
                QWebElement elemCurrent = FindCloserWidget(welemTemp);
				// if the clicked elem is not the same as the previously clicked
				if (elemCurrent != m_old_click_element)
				{
					// Change color
					ChangeClickedElemColor(elemCurrent);
					// Message to print
					m_strCurrentElemId = elemCurrent.attribute("id");
					// Emit message
					Q_EMIT mouseLeftClickedOverElem(m_strCurrentElemId);
				}
			}
		}
	}
	return false;
}

void ClickToFlash::findElement()
{
    if (!m_toolButton) {
        return;
    }

    QWidget* parent = parentWidget();
    QWebView* view = 0;
    while (parent) {
        if (QWebView* aView = qobject_cast<QWebView*>(parent)) {
            view = aView;
            break;
        }
        parent = parent->parentWidget();
    }
    if (!view) {
        return;
    }

    QPoint objectPos = view->mapFromGlobal(m_toolButton->mapToGlobal(m_toolButton->pos()));
    QWebFrame* objectFrame = view->page()->frameAt(objectPos);
    QWebHitTestResult hitResult;
    QWebElement hitElement;

    if (objectFrame) {
        hitResult = objectFrame->hitTestContent(objectPos);
        hitElement = hitResult.element();
    }

    if (!hitElement.isNull() && (hitElement.tagName().compare("embed", Qt::CaseInsensitive) == 0 ||
                                 hitElement.tagName().compare("object", Qt::CaseInsensitive) == 0)) {
        m_element = hitElement;
        return;
    }

    // HitTestResult failed, trying to find element by src
    // attribute in elements at all frames on page (less accurate)

    QList<QWebFrame*> frames;
    frames.append(objectFrame);
    m_mainFrame = view->page()->mainFrame();
    frames.append(m_mainFrame);

    while (!frames.isEmpty()) {
        QWebFrame* frame = frames.takeFirst();
        if (!frame) {
            continue;
        }
        QWebElement docElement = frame->documentElement();

        QWebElementCollection elements;
        elements.append(docElement.findAll(QLatin1String("embed")));
        elements.append(docElement.findAll(QLatin1String("object")));

        foreach(const QWebElement & element, elements) {
            if (!checkElement(element) && !checkUrlOnElement(element)) {
                continue;
            }
            m_element = element;
            return;
        }
        frames += frame->childFrames();
    }
}

QWebHitTestResult WebkitPixelStreamer::performHitTest(const deflect::Event &dcEvent) const
{
    const QPoint& pointerPos = getPointerPosition(dcEvent);
    QWebFrame *pFrame = webView_.page()->frameAt(pointerPos);
    return pFrame ? pFrame->hitTestContent(pointerPos) : QWebHitTestResult();
}