C++ QWebElement::hasAttribute方法代码示例

static bool showSpellCheckAction(const QWebElement& element)
{
    if (element.hasAttribute(QL1S("readonly")))
        return false;

    if (element.attribute(QL1S("spellcheck"), QL1S("true")).compare(QL1S("false"), Qt::CaseInsensitive) == 0)
        return false;

    if (element.hasAttribute(QL1S("type"))
        && element.attribute(QL1S("type")).compare(QL1S("text"), Qt::CaseInsensitive) != 0)
        return false;

    return true;
}

void EnmlFormatter::processTodo(QWebElement &node) {
    bool checked=false;
    if (node.hasAttribute("checked"))
        checked = true;
    node.removeAttribute("style");
    node.removeAttribute("type");
    removeInvalidAttributes(node);
    if (checked)
        node.setAttribute("checked", "true");
    node.setOuterXml(node.toOuterXml().replace("<input", "<en-todo").replace("</input", "</en-todo"));
}

void SearchEnginesManager::addEngineFromForm(const QWebElement &element, WebView* view)
{
    QWebElement formElement = element.parent();

    while (!formElement.isNull()) {
        if (formElement.tagName().toLower() == QLatin1String("form")) {
            break;
        }

        formElement = formElement.parent();
    }

    if (formElement.isNull()) {
        return;
    }

    const QString method = formElement.hasAttribute("method") ? formElement.attribute("method").toUpper() : "GET";
    bool isPost = method == QLatin1String("POST");

    QUrl actionUrl = QUrl::fromEncoded(formElement.attribute("action").toUtf8());

    if (actionUrl.isRelative()) {
        actionUrl = view->url().resolved(actionUrl);
    }

    QUrl parameterUrl = actionUrl;

    if (isPost) {
        parameterUrl = QUrl("http://foo.bar");
    }

#if QT_VERSION >= 0x050000
    QUrlQuery query(parameterUrl);
    query.addQueryItem(element.attribute("name"), "%s");

    QWebElementCollection allInputs = formElement.findAll("input");
    foreach (QWebElement e, allInputs) {
        if (element == e || !e.hasAttribute("name")) {
            continue;
        }

        query.addQueryItem(e.attribute("name"), e.evaluateJavaScript("this.value").toString());
    }

    parameterUrl.setQuery(query);
#else
    QList<QPair<QByteArray, QByteArray> > queryItems;

    QPair<QByteArray, QByteArray> item;
    item.first = element.attribute("name").toUtf8();
    item.second = "%s";
    queryItems.append(item);

    QWebElementCollection allInputs = formElement.findAll("input");
    foreach (QWebElement e, allInputs) {
        if (element == e || !e.hasAttribute("name")) {
            continue;
        }

        QPair<QByteArray, QByteArray> item;
        item.first = QUrl::toPercentEncoding(e.attribute("name").toUtf8());
        item.second = QUrl::toPercentEncoding(e.evaluateJavaScript("this.value").toByteArray());

        queryItems.append(item);
    }
    parameterUrl.setEncodedQueryItems(parameterUrl.encodedQueryItems() + queryItems);
#endif

    if (!isPost) {
        actionUrl = parameterUrl;
    }

    SearchEngine engine;
    engine.name = view->title();
    engine.icon = view->icon();
    engine.url = actionUrl.toEncoded();

    if (isPost) {
        QByteArray data = parameterUrl.toEncoded(QUrl::RemoveScheme);
        engine.postData = data.contains('?') ? data.mid(data.lastIndexOf('?') + 1) : QByteArray();
    }

    EditSearchEngine dialog(SearchEnginesDialog::tr("Add Search Engine"), view);
    dialog.setName(engine.name);
    dialog.setIcon(engine.icon);
    dialog.setUrl(engine.url);
    dialog.setPostData(engine.postData);

    if (dialog.exec() != QDialog::Accepted) {
        return;
    }

    engine.name = dialog.name();
    engine.icon = dialog.icon();
    engine.url = dialog.url();
    engine.shortcut = dialog.shortcut();
    engine.postData = dialog.postData().toUtf8();

    if (engine.name.isEmpty() || engine.url.isEmpty()) {
        return;
//.........这里部分代码省略.........

void QtWebKitWebWidget::showContextMenu(const QPoint &position)
{
	if (position.isNull() && m_webView->selectedText().isEmpty())
	{
		return;
	}

	const QPoint hitPosition = (position.isNull() ? m_webView->mapFromGlobal(QCursor::pos()) : position);
	MenuFlags flags = NoMenu;

	m_hitResult = m_webView->page()->frameAt(hitPosition)->hitTestContent(hitPosition);

	if (m_hitResult.element().tagName().toLower() == QLatin1String("textarea") || m_hitResult.element().tagName().toLower() == QLatin1String("select") || (m_hitResult.element().tagName().toLower() == QLatin1String("input") && (m_hitResult.element().attribute(QLatin1String("type")).isEmpty() || m_hitResult.element().attribute(QLatin1String("type")).toLower() == QLatin1String("text"))))
	{
		QWebElement parentElement = m_hitResult.element().parent();

		while (!parentElement.isNull() && parentElement.tagName().toLower() != QLatin1String("form"))
		{
			parentElement = parentElement.parent();
		}

		if (!parentElement.isNull() && parentElement.hasAttribute(QLatin1String("action")) && !parentElement.findFirst(QLatin1String("input[name], select[name], textarea[name]")).isNull())
		{
			flags |= FormMenu;
		}
	}

	if (m_hitResult.pixmap().isNull() && m_hitResult.isContentSelected() && !m_webView->selectedText().isEmpty())
	{
		updateSearchActions(m_searchEngine);

		flags |= SelectionMenu;
	}

	if (m_hitResult.linkUrl().isValid())
	{
		flags |= LinkMenu;
	}

	if (!m_hitResult.pixmap().isNull())
	{
		flags |= ImageMenu;

		const bool isImageOpened = getUrl().matches(m_hitResult.imageUrl(), (QUrl::NormalizePathSegments | QUrl::RemoveFragment | QUrl::StripTrailingSlash));

		getAction(OpenImageInNewTabAction)->setEnabled(!isImageOpened);
		getAction(InspectElementAction)->setEnabled(!isImageOpened);
	}

	if (m_hitResult.mediaUrl().isValid())
	{
		flags |= MediaMenu;

		const bool isVideo = (m_hitResult.element().tagName().toLower() == QLatin1String("video"));
		const bool isPaused = m_hitResult.element().evaluateJavaScript(QLatin1String("this.paused")).toBool();
		const bool isMuted = m_hitResult.element().evaluateJavaScript(QLatin1String("this.muted")).toBool();

		getAction(SaveMediaToDiskAction)->setText(isVideo ? tr("Save Video...") : tr("Save Audio..."));
		getAction(CopyMediaUrlToClipboardAction)->setText(isVideo ? tr("Copy Video Link to Clipboard") : tr("Copy Audio Link to Clipboard"));
		getAction(ToggleMediaControlsAction)->setText(tr("Show Controls"));
		getAction(ToggleMediaLoopAction)->setText(tr("Looping"));
		getAction(ToggleMediaPlayPauseAction)->setIcon(Utils::getIcon(isPaused ? QLatin1String("media-playback-start") : QLatin1String("media-playback-pause")));
		getAction(ToggleMediaPlayPauseAction)->setText(isPaused ? tr("Play") : tr("Pause"));
		getAction(ToggleMediaMuteAction)->setIcon(Utils::getIcon(isMuted ? QLatin1String("audio-volume-medium") : QLatin1String("audio-volume-muted")));
		getAction(ToggleMediaMuteAction)->setText(isMuted ? tr("Unmute") : tr("Mute"));
	}

	if (m_hitResult.isContentEditable())
	{
		flags |= EditMenu;

		getAction(ClearAllAction)->setEnabled(getAction(SelectAllAction)->isEnabled());
	}

	if (flags == NoMenu || flags == FormMenu)
	{
		flags |= StandardMenu;

		if (m_hitResult.frame() != m_webView->page()->mainFrame())
		{
			flags |= FrameMenu;
		}
	}

	WebWidget::showContextMenu(hitPosition, flags);
}

//.........这里部分代码省略.........
			break;
		case CopyFrameLinkToClipboardAction:
			if (m_hitResult.frame())
			{
				QGuiApplication::clipboard()->setText((m_hitResult.frame()->url().isValid() ? m_hitResult.frame()->url() : m_hitResult.frame()->requestedUrl()).toString());
			}

			break;
		case ReloadFrameAction:
			if (m_hitResult.frame())
			{
				const QUrl url = (m_hitResult.frame()->url().isValid() ? m_hitResult.frame()->url() : m_hitResult.frame()->requestedUrl());

				m_hitResult.frame()->setUrl(QUrl());
				m_hitResult.frame()->setUrl(url);
			}

			break;
		case SearchAction:
			search(getAction(SearchAction));

			break;
		case CreateSearchAction:
			{
				QWebElement parentElement = m_hitResult.element().parent();

				while (!parentElement.isNull() && parentElement.tagName().toLower() != "form")
				{
					parentElement = parentElement.parent();
				}

				const QWebElementCollection inputs = parentElement.findAll(QLatin1String("input:not([disabled])[name], select:not([disabled])[name], textarea:not([disabled])[name]"));

				if (!parentElement.isNull() && parentElement.hasAttribute(QLatin1String("action")) && inputs.count() > 0)
				{
					QUrlQuery parameters;

					for (int i = 0; i < inputs.count(); ++i)
					{
						QString value;

						if (inputs.at(i).tagName().toLower() == QLatin1String("textarea"))
						{
							value = inputs.at(i).toPlainText();
						}
						else if (inputs.at(i).tagName().toLower() == QLatin1String("select"))
						{
							const QWebElementCollection options = inputs.at(i).findAll(QLatin1String("option"));

							for (int j = 0; j < options.count(); ++j)
							{
								if (options.at(j).hasAttribute(QLatin1String("selected")))
								{
									value = options.at(j).attribute(QLatin1String("value"), options.at(j).toPlainText());

									break;
								}
							}
						}
						else
						{
							if ((inputs.at(i).attribute(QLatin1String("type")) == QLatin1String("checkbox") || inputs.at(i).attribute(QLatin1String("type")) == QLatin1String("radio")) && !inputs.at(i).hasAttribute(QLatin1String("checked")))
							{
								continue;
							}