QFileDialog: make QFileDialog::selectFile resolve remote dirs correctly

The code was assuming local files, and broke with remote dirs.
Testcase: `kwrite sftp://localhost/tmp/file.txt` and then Ctrl+O,
the initial directory was $PWD instead of the remote dir.

Change-Id: Ie24d4c1b2b3278dce44274af0066105bd1bf9b34
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
Reviewed-by: Luca Beldi <v.ronin@yahoo.it>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>

1 files changed, 8 insertions, 3 deletions

diff --git a/src/widgets/dialogs/qfiledialog.cpp b/src/widgets/dialogs/qfiledialog.cpp
index 2742b152f2..9116bf61fe 100644
--- a/src/widgets/dialogs/qfiledialog.cpp
+++ b/src/widgets/dialogs/qfiledialog.cpp
@@ -1047,10 +1047,15 @@ void QFileDialog::selectFile(const QString &filename)
         return;
 
     if (!d->usingWidgets()) {
-        QUrl url = QUrl::fromLocalFile(filename);
+        QUrl url;
         if (QFileInfo(filename).isRelative()) {
-            QDir dir(d->options->initialDirectory().toLocalFile());
-            url = QUrl::fromLocalFile(dir.absoluteFilePath(filename));
+            url = d->options->initialDirectory();
+            QString path = url.path();
+            if (!path.endsWith(QLatin1Char('/')))
+                path += QLatin1Char('/');
+            url.setPath(path + filename);
+        } else {
+            url = QUrl::fromLocalFile(filename);
         }
         d->selectFile_sys(url);
         d->options->setInitiallySelectedFiles(QList<QUrl>() << url);