Changing downloadDirectory property of WebEngineDownloadItem in QML QtQuick 2.2 and QtWebEngine 1.10

Sheetal Deshpande

Hi ,
I am running the webengine\quicknanobrowser example from qt installer for
5.14.1 version.
Here I want to change the download directory of downloadItem received in
signal handler onDownloadRequested.
If I hard code it to some folder then it works but I want to use a folder
dialog to browse the folder and then set it to download.downloadDirectory.
Here is what I tried but not working.

FolderDialog {
id: folderDialog
onAccepted: {
console.log("\n\nfolder picked");
}
}
function onDownloadRequested(download) {
folderDialog.open();
if(folderDialog.result === Dialog.Accepted)
{
download.downloadDirectory = folderDialog.folder;
console.log("$$\nnew dir: " +
download.downloadDirectory);
downloadView.append(download);
download.accept();
}
}

So it seems execution of the signal handler function continues after
folderDialog.open() and once it is complete then it opens the dialog for
browsing.
How can execution of onDownloadRequested wait till the user browses folder?

I tried using timer too like below but again not working:


Timer {
id: delaytimer;
interval: 10000;
running: false;
repeat: false;
onTriggered:
{
console.log("%%%\n\onTriggered");
if(folderDialog.result === Dialog.Accepted)
{
console.log("%%%\n\done picking");
folderPicked = true;
delaytimer.running = false;//stop();
}
}
}
function onDownloadRequested(download) {
folderDialog.open();
delaytimer.running = true;
while(delaytimer.running == true)
{
if(folderPicked == true)
{
download.downloadDirectory = folderDialog.folder;
downloadView.visible = true;
downloadView.append(download);
download.accept();
}
}

So we want to browse folder and select that folder as download
directory(override default download directory).

Can anyone please suggest if we can achieve this and how?

Thanks in advance.
Sheetal

Sheetal Deshpande

If anyone comes here for solution, please read below reply from QT support team which I got.

You need to block the execution in the handler until the
download location has been set.
Like below:
In BrowserWindow.qml

import Test 1.0

    FileDialog {
        id: fd
        selectFolder: true
        property bool done: false
        onAccepted: {
            done = true
        }
        onRejected: done = true
    }

    function onDownloadRequested(download) {
        fd.done = false
        fd.open()
        while(!fd.done) {
            App.process()
        }
        download.downloadDirectory = App.urlToDir(fd.folder)
        downloadView.visible = true;
        downloadView.append(download);
        download.accept();
    }

In cpp files:

class App : public QObject
{
    Q_OBJECT
public:
    Q_INVOKABLE QString urlToDir(QUrl url)
    {
        return url.toLocalFile();

    }
    Q_INVOKABLE void process()
    {
        qApp->processEvents();
    }
};

int main(int argc, char **argv)
{
///all initialization code and including QApplication creation
    qmlRegisterSingletonInstance("Test", 1, 0, "App", new App);
}

Regards,
Sheetal