[Solved] - Starting a QDialog hidden

maximus

I want to show my QDialog only after it's QWebView has finished loading.

I tried multiple approach, but all failed (setting setVisible to false in the constructor still show the QDialog)

main.cpp

@
DialogLogin *login = new DialogLogin();

while (!login->isLoginPageLoaded()) {
    qDebug() << "waiting for loading page....";
    QThread::msleep(700);
}

login->exec(&#41;;@

this code stay in the loop forever, it seems if the QWebView isn't been displayed, it's not loading the URL..

p3c0

Hi,

If I understood you correctly, use QWebView's "loadFinished":http://qt-project.org/doc/qt-5/qwebview.html#loadFinished signal. You can connect it to a slot and then create DialogLogin there or just show().

hsierra00

hi
you could create a slot

private slots:
void webLoadFinished(bool);
in slot implementations

void MainWindow::webLoadFinished(bool)
{
DialogLogin *login = new DialogLogin();
login->exec();
}

in QWebView setting

connect(ui->webView, SIGNAL(loadFinished(bool)),this,SLOT(webLoadFinished(bool)));
ui->webView->load(QUrl("http://stackoverflow.com"));

hsierra00

hi
more clear
you could create a slot

@
private slots:
void webLoadFinished(bool);
@

in slot implementations

@
void MainWindow::webLoadFinished(bool)
{
DialogLogin *login = new DialogLogin(); login->exec();
}
@

in QWebView setting

@
connect(ui->webView, SIGNAL(loadFinished(bool)),this,SLOT(webLoadFinished(bool)));
ui->webView->load(QUrl("http://stackoverflow.com"));
@

maximus

Hey,

The problem is that the QDialog is executed in the main (before QMainWindow), so I can't really connect a slot there. Also just calling .exec() show the QDialog automatically..
Will try some other approach, thanks!

maximus

Also food for thought, how do I connect a the signal loadFinished of a QWebView if I don't have a QDialog, QWebView needs a parent to live (can't live on it's own)
If the QDialog .exec() isn't called, the QWebView never get to the signal "loadFinished"

hsierra00

hi
You use QWebView inside of DialogLogin ?

maximus

I used another approach, instead of hiding the QDialog, I just hide the QWebView until it's loading and show a loading indicator before

Result :
"https://www.dropbox.com/s/dzatqvkttd3hw5z/aaab.png?dl=0":https://www.dropbox.com/s/dzatqvkttd3hw5z/aaab.png?dl=0

Thanks for your help!