Fix manual path entry in file dialog not working (#2352)

When users type a path in the file dialog path bar and click Add without
selecting anything in the tree, the path bar text is now used as the
selection. Previously, the path bar only navigated the tree view and
users had to click items in the tree to select them.

Author: m3nu

src/vorta/filedialog.py

@@ -92,6 +92,21 @@ def __init__(self, parent=None, window_title='Vorta File Dialog', title='Select
     def selected_paths(self):
         indexes = self.tree.selectionModel().selectedIndexes()
         paths = []
+
+        # If no tree selection, use the path bar text as the selection
+        if not indexes:
+            path = self.path_bar.text()
+            if path and os.path.exists(path):
+                if not os.access(path, os.R_OK):
+                    msg = QMessageBox()
+                    msg.setIcon(QMessageBox.Icon.Warning)
+                    msg.setWindowTitle(self.tr("Permission Denied"))
+                    msg.setText(self.tr(f"You don't have read access to {path}."))
+                    msg.exec()
+                    return []
+                return [path]
+            return []
+
         for index in indexes:
             if index.column() == 0:
                 path = self.model.filePath(index)