webpage.h Example File

webenginewidgets/simplebrowser/webpage.h
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 #ifndef WEBPAGE_H
 #define WEBPAGE_H

 #include <QWebEnginePage>
 #include <QWebEngineRegisterProtocolHandlerRequest>

 class WebPage : public QWebEnginePage
 {
     Q_OBJECT

 public:
     WebPage(QWebEngineProfile *profile, QObject *parent = nullptr);

 protected:
     bool certificateError(const QWebEngineCertificateError &error) override;

 private slots:
     void handleAuthenticationRequired(const QUrl &requestUrl, QAuthenticator *auth);
     void handleFeaturePermissionRequested(const QUrl &securityOrigin, Feature feature);
     void handleProxyAuthenticationRequired(const QUrl &requestUrl, QAuthenticator *auth, const QString &proxyHost);
     void handleRegisterProtocolHandlerRequested(QWebEngineRegisterProtocolHandlerRequest request);
 #if !defined(QT_NO_SSL) || QT_VERSION >= QT_VERSION_CHECK(5, 12, 0)
     void handleSelectClientCertificate(QWebEngineClientCertificateSelection clientCertSelection);
 #endif
 };

 #endif // WEBPAGE_H