Hi,

In general KFileDialog accepts URLs without problems (try opening a http://some/picture.jpg in gwenview). However, if you set mode to KFile::Directory|KFile::Files, it will screw up the URL.

Reproducible: Always

Steps to Reproduce:
Consider the following code:

====x cut here x========
#include <KAboutData>
#include <KApplication>
#include <KCmdLineArgs>
#include <KFileDialog>
#include <KMessageBox>

int main(int argc, char* argv[])
{
    KCmdLineArgs::init(argc, argv, new KAboutData("", "", KLocalizedString(), ""));
    KApplication app;

    {
    KFileDialog dlg(KUrl("/"), "*.*|", 0);
    dlg.exec();

    KMessageBox::information(0, dlg.selectedUrl().prettyUrl());
    }

    {
    KFileDialog dlg(KUrl("/"), "*.*|", 0);
    dlg.setMode(KFile::Files | KFile::Directory);
    dlg.exec();

    KMessageBox::information(0, dlg.selectedUrl().prettyUrl());
    }

    return 0;
}
====x cut here x========

Compile it, run, and input "http://localhost" in the file dialogs that will come up.
Actual Results:  
At first it shows "http://localhost", then it shows "file:///http:/localhost".

Expected Results:  
Show "http://localhost" both times.

Note the curly braces around the KFileDialog invokation. If you remove them, the result is even weirder: "http://localhost/http:/localhost", which hints somehow, that at some point previous URL is being prepended.