Method readStyleSheet

plugins/manpage/manpagedocumentation.cpp:67–76

* Read the file contents and return it wrapped in a <style> HTML element. * * @return The <style> HTML element or an empty string in case of error. * * @note Referencing a local file via absolute path or file:// URL inside a <link> * HTML element does not work because Qt WebEngine forbids such file system access. * A comment under QTBUG-5

     *       during back/forward web history navigation, so such navigation loads unstyled pages.
     */
    static QString readStyleSheet(const QString& fileName)
    {
        QFile file(fileName);
        if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
            qCWarning(MANPAGE) << "cannot read CSS file" << fileName << ':' << file.error() << file.errorString();
            return QString();
        }
        const auto cssCode = file.readAll();
        return styleElementWithCode(cssCode, fileName);
    }

    /**
     * Get the URL contents and return it wrapped in a &lt;style&gt; HTML element.