Fix uri quote issue with destination folder

Closes lp:1594698, thanks Richard.

soundconverter/fileoperations.py

@@ -91,7 +91,7 @@ def filename_to_uri(filename):
         # convert local filename to uri
         filename = 'file://' + urllib.request.pathname2url(os.path.abspath(filename))
 
-    uri = Gio.file_parse_name(urllib.parse.quote(filename, '/:%@')).get_uri()
+    uri = Gio.file_parse_name(filename).get_uri()
     return uri
 
 

soundconverter/namegenerator.py

@@ -108,7 +108,7 @@ def get_target_name(self, sound_file):
         if self.folder is None:
             folder = root
         else:
-            folder = urllib.parse.quote(self.folder, '/:%@')
+            folder = urllib.parse.quote(self.folder, safe='/:%@')
 
         if '/' in pattern:
             # we are creating folders using tags, disable basefolder handling

soundconverter/ui.py

@@ -425,7 +425,7 @@ def set_widget_initial_values(self, builder):
             w = self.into_selected_folder
         w.set_active(True)
 
-        uri = filename_to_uri(self.get_string('selected-folder'))
+        uri = filename_to_uri(urllib.parse.quote(self.get_string('selected-folder'), safe='/:@'))
         self.target_folder_chooser.set_uri(uri)
         self.update_selected_folder()
 
@@ -701,6 +701,7 @@ def generate_filename(self, sound_file, for_display=False):
 
         if not self.get_int('same-folder-as-input'):
             folder = self.get_string('selected-folder')
+            folder = urllib.parse.quote(folder, safe='/:@')
             folder = filename_to_uri(folder)
             generator.folder = folder