notificationpopup.h Example File

webenginewidgets/notifications/notificationpopup.h
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 #pragma once

 #include <QHBoxLayout>
 #include <QLabel>
 #include <QMouseEvent>
 #include <QPushButton>
 #include <QSpacerItem>
 #include <QTimer>
 #include <QVBoxLayout>
 #include <QWebEngineNotification>

 #include <memory>

 class NotificationPopup : public QWidget
 {
     Q_OBJECT

     QLabel m_icon, m_title, m_message;
     std::unique_ptr<QWebEngineNotification> notification;

 public:
     NotificationPopup(QWidget *parent) : QWidget(parent)
     {
         setWindowFlags(Qt::ToolTip);
         auto rootLayout = new QHBoxLayout(this);

         rootLayout->addWidget(&m_icon);

         auto bodyLayout = new QVBoxLayout;
         rootLayout->addLayout(bodyLayout);

         auto titleLayout = new QHBoxLayout;
         bodyLayout->addLayout(titleLayout);

         titleLayout->addWidget(&m_title);
         titleLayout->addItem(new QSpacerItem(0, 0, QSizePolicy::Expanding));

         auto close = new QPushButton(tr("Close"));
         titleLayout->addWidget(close);
         connect(close, &QPushButton::clicked, this, &NotificationPopup::onClosed);

         bodyLayout->addWidget(&m_message);
         adjustSize();
     }

     void present(std::unique_ptr<QWebEngineNotification> &newNotification)
     {
         if (notification) {
             notification->close();
             notification.reset();
         }

         notification.swap(newNotification);

         m_title.setText("<b>" + notification->title() + "</b>");
         m_message.setText(notification->message());
         m_icon.setPixmap(QPixmap::fromImage(notification->icon()).scaledToHeight(m_icon.height()));

         show();
         notification->show();

         connect(notification.get(), &QWebEngineNotification::closed, this, &NotificationPopup::onClosed);
         QTimer::singleShot(10000, notification.get(), [&] () { onClosed(); });

         // position our popup in the right corner of its parent widget
         move(parentWidget()->mapToGlobal(parentWidget()->rect().bottomRight() - QPoint(width() + 10, height() + 10)));
     }

 protected slots:
     void onClosed()
     {
         hide();
         notification->close();
         notification.reset();
     }

 protected:
     void mouseReleaseEvent(QMouseEvent *event) override
     {
         QWidget::mouseReleaseEvent(event);
         if (notification && event->button() == Qt::LeftButton) {
             notification->click();
             onClosed();
         }
     }
 };