Kivy: FileChooser redrawing - kivy

Question

I want to use FileChooser for basic operation. I select folder using FileChooser, I will remove it using own function. Folder is removed and I want to show new contents of disc but contents is incorrect How do I show current right contents of disc?

Answer 1

My question based from problem with next code. When I removed folder in root directory, contens of FileChooserListView was incorrect. Source of problem was in discname. Last symbol in disc name wasn't '**'. After added this ( function delete_dir() isn't problem.
Builder.load_string('''
<ConfirmPopup>:
cols:1
Label:
text: root.text
GridLayout:
cols: 2
size_hint_y: None
height: '44sp'
Button:
text: 'Yes'
on_release: root.dispatch('on_answer','yes')
Button:
text: 'No'
on_release: root.dispatch('on_answer', 'no')
''')
class ConfirmPopup(GridLayout):
text = StringProperty('')
def __init__(self,**kwargs):
self.register_event_type('on_answer')
super(ConfirmPopup,self).__init__(**kwargs)
def on_answer(self, *args):
pass
class PopupYesNo(GridLayout):
def __init__(self, save_as, task):
self.save_as = save_as
self.task = task
def show_widget(self, question):
self.content = ConfirmPopup(text= question)
self.content.bind(on_answer = self._on_answer)
self.popup = Popup(title="Answer Question",
content=self.content,
size_hint=(None, None),
size=(480,400),
auto_dismiss= False)
self.popup.open()
def _on_answer(self, instance, answer):
if answer == 'yes':
self.save_as.act_task()
self.popup.dismiss()
return
class SaveAs(BoxLayout):
def __init__(self, **kwargs):
super(SaveAs,self).__init__(**kwargs)
self.orientation = 'vertical'
self.fichoo = FileChooserListView(size_hint_y = 0.8)
self.add_widget(self.fichoo)
control = GridLayout(cols = 5, row_force_default=True, row_default_height=35, size_hint_y = 0.14)
self.tein_dir = TextInput(size_hint_x = None, width = 350)
self.tein_dir.multiline = False
bt_del_dir = Button(text = 'Remove',size_hint_x = None, width = 80)
bt_del_dir.bind(on_release = self.on_delete_dir)
control.add_widget(self.tein_dir)
control.add_widget(bt_del_dir)
self.fichoo.bind(path = self.on_path_select)
self.add_widget(control)
return
def on_path_select(self, inst, val):
self.tein_dir.text = str(self.fichoo.path)
return
def on_delete_dir(self, obj):
question = 'Do You want to remove: '+ self.tein_dir.text+ '?'
self.act_task = self.delete_dir
popup = PopupYesNo(self, SaveAs.delete_dir)
popup.show_widget(question)
return
def delete_dir(self):
pos = self.fichoo.path.rfind('\\', 0, len(self.fichoo.path))
new_path = str(self.fichoo.path)[0:pos]
if new_path[-1] == ':':
new_path += '\\' # last symbol in discname is '\'
self.tein_dir.text = new_path
os.chdir(new_path)
shutil.rmtree(str(self.fichoo.path))
self.fichoo.path = new_path
return
class ExplorerApp(App):
def build(self):
self.save_as = SaveAs()
return self.save_as
if __name__ == '__main__':
ExplorerApp().run()