webpage.cpp Example File

webenginewidgets/simplebrowser/webpage.cpp
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#include "browserwindow.h" #include "tabwidget.h" #include "ui_certificateerrordialog.h" #include "ui_passworddialog.h" #include "webpage.h" #include "webview.h" #include <QAuthenticator> #include <QMessageBox> #include <QStyle> #include <QWebEngineCertificateError> WebPage::WebPage(QWebEngineProfile *profile, QObject *parent) : QWebEnginePage(profile, parent) { connect(this, &QWebEnginePage::authenticationRequired, this, &WebPage::handleAuthenticationRequired); connect(this, &QWebEnginePage::featurePermissionRequested, this, &WebPage::handleFeaturePermissionRequested); connect(this, &QWebEnginePage::proxyAuthenticationRequired, this, &WebPage::handleProxyAuthenticationRequired); connect(this, &QWebEnginePage::registerProtocolHandlerRequested, this, &WebPage::handleRegisterProtocolHandlerRequested); #if !defined(QT_NO_SSL) || QT_VERSION >= QT_VERSION_CHECK(5, 12, 0) connect(this, &QWebEnginePage::selectClientCertificate, this, &WebPage::handleSelectClientCertificate); #endif } bool WebPage::certificateError(const QWebEngineCertificateError &error) { QWidget *mainWindow = view()->window(); if (error.isOverridable()) { QDialog dialog(mainWindow); dialog.setModal(true); dialog.setWindowFlags(dialog.windowFlags() & ~Qt::WindowContextHelpButtonHint); Ui::CertificateErrorDialog certificateDialog; certificateDialog.setupUi(&dialog); certificateDialog.m_iconLabel->setText(QString()); QIcon icon(mainWindow->style()->standardIcon(QStyle::SP_MessageBoxWarning, 0, mainWindow)); certificateDialog.m_iconLabel->setPixmap(icon.pixmap(32, 32)); certificateDialog.m_errorLabel->setText(error.errorDescription()); dialog.setWindowTitle(tr("Certificate Error")); return dialog.exec() == QDialog::Accepted; } QMessageBox::critical(mainWindow, tr("Certificate Error"), error.errorDescription()); return false; } void WebPage::handleAuthenticationRequired(const QUrl &requestUrl, QAuthenticator *auth) { QWidget *mainWindow = view()->window(); QDialog dialog(mainWindow); dialog.setModal(true); dialog.setWindowFlags(dialog.windowFlags() & ~Qt::WindowContextHelpButtonHint); Ui::PasswordDialog passwordDialog; passwordDialog.setupUi(&dialog); passwordDialog.m_iconLabel->setText(QString()); QIcon icon(mainWindow->style()->standardIcon(QStyle::SP_MessageBoxQuestion, 0, mainWindow)); passwordDialog.m_iconLabel->setPixmap(icon.pixmap(32, 32)); QString introMessage(tr("Enter username and password for \"%1\" at %2") .arg(auth->realm()).arg(requestUrl.toString().toHtmlEscaped())); passwordDialog.m_infoLabel->setText(introMessage); passwordDialog.m_infoLabel->setWordWrap(true); if (dialog.exec() == QDialog::Accepted) { auth->setUser(passwordDialog.m_userNameLineEdit->text()); auth->setPassword(passwordDialog.m_passwordLineEdit->text()); } else { // Set authenticator null if dialog is cancelled *auth = QAuthenticator(); } } inline QString questionForFeature(QWebEnginePage::Feature feature) { switch (feature) { case QWebEnginePage::Geolocation: return WebPage::tr("Allow %1 to access your location information?"); case QWebEnginePage::MediaAudioCapture: return WebPage::tr("Allow %1 to access your microphone?"); case QWebEnginePage::MediaVideoCapture: return WebPage::tr("Allow %1 to access your webcam?"); case QWebEnginePage::MediaAudioVideoCapture: return WebPage::tr("Allow %1 to access your microphone and webcam?"); case QWebEnginePage::MouseLock: return WebPage::tr("Allow %1 to lock your mouse cursor?"); case QWebEnginePage::DesktopVideoCapture: return WebPage::tr("Allow %1 to capture video of your desktop?"); case QWebEnginePage::DesktopAudioVideoCapture: return WebPage::tr("Allow %1 to capture audio and video of your desktop?"); case QWebEnginePage::Notifications: return QString(); } return QString(); } void WebPage::handleFeaturePermissionRequested(const QUrl &securityOrigin, Feature feature) { QString title = tr("Permission Request"); QString question = questionForFeature(feature).arg(securityOrigin.host()); if (!question.isEmpty() && QMessageBox::question(view()->window(), title, question) == QMessageBox::Yes) setFeaturePermission(securityOrigin, feature, PermissionGrantedByUser); else setFeaturePermission(securityOrigin, feature, PermissionDeniedByUser); } void WebPage::handleProxyAuthenticationRequired(const QUrl &, QAuthenticator *auth, const QString &proxyHost) { QWidget *mainWindow = view()->window(); QDialog dialog(mainWindow); dialog.setModal(true); dialog.setWindowFlags(dialog.windowFlags() & ~Qt::WindowContextHelpButtonHint); Ui::PasswordDialog passwordDialog; passwordDialog.setupUi(&dialog); passwordDialog.m_iconLabel->setText(QString()); QIcon icon(mainWindow->style()->standardIcon(QStyle::SP_MessageBoxQuestion, 0, mainWindow)); passwordDialog.m_iconLabel->setPixmap(icon.pixmap(32, 32)); QString introMessage = tr("Connect to proxy \"%1\" using:"); introMessage = introMessage.arg(proxyHost.toHtmlEscaped()); passwordDialog.m_infoLabel->setText(introMessage); passwordDialog.m_infoLabel->setWordWrap(true); if (dialog.exec() == QDialog::Accepted) { auth->setUser(passwordDialog.m_userNameLineEdit->text()); auth->setPassword(passwordDialog.m_passwordLineEdit->text()); } else { // Set authenticator null if dialog is cancelled *auth = QAuthenticator(); } } void WebPage::handleRegisterProtocolHandlerRequested(QWebEngineRegisterProtocolHandlerRequest request) { auto answer = QMessageBox::question( view()->window(), tr("Permission Request"), tr("Allow %1 to open all %2 links?") .arg(request.origin().host()) .arg(request.scheme())); if (answer == QMessageBox::Yes) request.accept(); else request.reject(); } #if !defined(QT_NO_SSL) || QT_VERSION >= QT_VERSION_CHECK(5, 12, 0) void WebPage::handleSelectClientCertificate(QWebEngineClientCertificateSelection selection) { // Just select one. selection.select(selection.certificates().at(0)); } #endif

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