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  1. Qt
  2. QTBUG-58317

QWebEngineView::wheelEvent ignored

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • Icon: Not Evaluated Not Evaluated
    • None
    • 5.7.1
    • WebEngine
    • None
    • Debian GNU/Linux sid amd64

      I was not able to get custom wheel events working with QWebEngineView. In particular:

      • If I intercept the event in an overridden method, and call ignore(), the page is still scrolled;
      • It is impossible to send custom wheel events, they just get ignored.

      The test case for the first issue:

      #include <QtCore/QDebug>
#include <QtCore/QUrl>
#include <QtGui/QWheelEvent>
#include <QtWidgets/QApplication>
#include <QtWebEngineWidgets/QWebEngineView>

class MyWebView: public QWebEngineView {
public:
    void wheelEvent(QWheelEvent *event) override {
        qDebug() << "Intercepted event" << event;
        event->ignore();
    }
};

int main(int argc, char **argv) {
    QApplication app(argc, argv);
    MyWebView view;
    view.load(QUrl("https://www.qt.io/"));
    view.show();
    return app.exec();
}

      Expected result is that scrolling is blocked and does not work. However it does work.

      The debug messages are printed, so the override works.

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            qt_webengine_team Qt WebEngine Team
            mandriver Dmitry Shachnev
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              Created:
              Updated:
              Resolved:

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