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  1. Qt
  2. QTBUG-58317

QWebEngineView::wheelEvent ignored

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Not Evaluated
    • Resolution: Duplicate
    • Affects Version/s: 5.7.1
    • Fix Version/s: None
    • Component/s: WebEngine
    • Labels:
      None
    • Environment:
      Debian GNU/Linux sid amd64

      Description

      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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              Assignee:
              qt_webengine_team Qt WebEngine Team
              Reporter:
              mandriver Dmitry Shachnev
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                Dates

                Created:
                Updated:
                Resolved:

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