QFileDialog that accepts a single file or a single directory

Question

Is it possible to show a QFileDialog where the user can select a file or a directory, either one?

QFileDialog::getOpenFileName() accepts only files, while

Answer 1

Quite old question but I think I have a simpler solution than most for the lazy ones. You can connect the signal currentChanged of QFileDialog with a function that dynamically changes the fileMode.

//header
class my_main_win:public QMainWindow  
{
private:
    QFileDialog file_dialog;    
}

//constructor 

my_main_win(QWidget * parent):QMainWindow(parent)
{
    connect(&file_dialog,QFileDialog::currentChanged,this,[&](const QString & str)
        {
        QFileInfo info(str);
        if(info.isFile())
            file_dialog.setFileMode(QFileDialog::ExistingFile);
        else if(info.isDir())
            file_dialog.setFileMode(QFileDialog::Directory);
    });
}

And then simply call file_dialog as you would.

if(file_dialog.exec()){
    QStringList dir_names=file_dialog.selectedFiles():
}