Unable send QKeyEvent to QWebEngineView

kingsta

Hello friends

I want to send some keys to displayed web page. I declared QWebEngineView and loaded "https://www.google.com/". There is no problem. But I can't send keys. Where is my problem? I couldn't find...

header file

class MainWindow : public QMainWindow
{
...
private:
QWebEngineView *view;
...
}

my cpp files

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    view = new QWebEngineView(parent);
    QUrl url("https://www.google.com/"); 
    view->load(url);

ui->horizontalLayout->addWidget(view);

    view->setEnabled(true);
    view->setFocusPolicy(Qt::TabFocus);
    ui->horizontalLayoutWidget->setFocus();

    connect(view, SIGNAL(loadFinished(bool)), this, SLOT(sendKeysFunction()));
}
....

void MainWindow::sendKeysFunction()
{
QKeyEvent *tabPress= new QKeyEvent ( QEvent::KeyPress, Qt::Key_Tab, Qt::NoModifier);
    QKeyEvent *tabRelease = new QKeyEvent ( QEvent::KeyRelease, Qt::Key_Tab, Qt::NoModifier);

    QCoreApplication::sendEvent (view->page()->view(), tabPress); 
    QCoreApplication::sendEvent (view->page()->view(), tabRelease );
    //Sleep(1000);
    QCoreApplication::sendEvent (view->page()->view(), tabPress);
    QCoreApplication::sendEvent (view->page()->view(), tabRelease );
     //Sleep(1000);


    QKeyEvent *enterPress = new QKeyEvent ( QEvent::KeyPress, Qt::Key_Return, Qt::NoModifier);
    QKeyEvent *enterRelease = new QKeyEvent ( QEvent::KeyRelease, Qt::Key_Return, Qt::NoModifier);
    QCoreApplication::sendEvent (view->page()->view(), enterPress );
    QCoreApplication::sendEvent (view->page()->view(), enterRelease );
}

JonB

@kingsta
I don't know, but have a read through:
https://stackoverflow.com/questions/27894769/how-to-send-artificial-qkeyevent-to-qwebengineview
https://stackoverflow.com/questions/40960388/simulate-mouse-click-for-qwebengineview

It seems peeps there are sending to QWebEngineView::children().

It seems that you have to access a child object of the QWebEngineView and then send events to it.

?

eyllanesc

@kingsta Use view->focusProxy() as discussed in this post https://stackoverflow.com/questions/57011407/qt-event-propagation-in-qwebengineview:

void MainWindow::sendKeysFunction()
{
    QKeyEvent *tabPress= new QKeyEvent ( QEvent::KeyPress, Qt::Key_Tab, Qt::NoModifier);
    QKeyEvent *tabRelease = new QKeyEvent ( QEvent::KeyRelease, Qt::Key_Tab, Qt::NoModifier);

    QCoreApplication::sendEvent (view->focusProxy(), tabPress);
    QCoreApplication::sendEvent (view->focusProxy(), tabRelease );
    //Sleep(1000);
    QCoreApplication::sendEvent (view->focusProxy(), tabPress);
    QCoreApplication::sendEvent (view->focusProxy(), tabRelease );
    //Sleep(1000);

    QKeyEvent *enterPress = new QKeyEvent ( QEvent::KeyPress, Qt::Key_Return, Qt::NoModifier);
    QKeyEvent *enterRelease = new QKeyEvent ( QEvent::KeyRelease, Qt::Key_Return, Qt::NoModifier);
    QCoreApplication::sendEvent(view->focusProxy(), enterPress );
    QCoreApplication::sendEvent(view->focusProxy(), enterRelease );
}

kingsta

@eyllanesc and @JonB

You think are right! I can send events now. Thank you a lot.
I read some topics before that you send, but I couldn't do that.