QWebEngineProfile downloadRequested() not invoking

bandito

For what ever reason can't get QWenEngineProfile to invoke downloadRequest when downloading a file with QWebEnginePage. The way I understand it is that when QWebEnginePage::download() is called the QWebEningeProfile::downloadRequested() signal is emitted but for some reason my code doesn't catch the signal.

mainwindow.ccp

WebPageDownload *webPageDownload = new WebPageDownload(this);
webPageDownload->download("https://www.nasdaq.com/screening/companies-by-industry.aspx?exchange=NASDAQ&render=download", "file.cvs");

webpagedownload.cpp

WebPageDownload::WebPageDownload(QObject *parent){
page = new QWebEnginePage(parent);    
connect(page->profile(), SIGNAL(downloadRequested(QWebEngineDownloadItem*)), this, SLOT(downloadRequested(QWebEngineDownloadItem*)));
}

void WebPageDownload::download(const QUrl &url, const QString &filename){
qDebug()<<"download called";
//this should emit QWebEngineProfile::downloadRequested
page->download(url, filename);
}

void WebPageDownload::downloadRequested(QWebEngineDownloadItem* download) {
qDebug()<<"Download request invoked";
}

webpagedownload.h

class WebPageDownload : public QObject{
Q_OBJECT

public:
WebPageDownload(QObject *parent = nullptr);

private:
QWebEnginePage *page;

private slots:
void downloadRequested(QWebEngineDownloadItem* download);

public slots:
void download(const QUrl &url, const QString &filename = QString());

KillerSmath

Hello @bandito

I tested your code on Qt 5.12.2 and everthing is working well with a single change.

webPageDownload->download(QString("https://www.nasdaq.com/screening/companies-by-industry.aspx?exchange=NASDAQ&render=download"), "file.cvs");

Because QUrl cannot use const char* variable as parameter and don't auto convert to QString.

First of all, what Qt and MSVC versions are you using ?

bandito

This may sound weird but I play around with it some more and it was calling another method. I changed some of the code in that method and then downloadRequested got called. I guess something went squirrelly in the QT engine.