Add new 'reset' action for resetting state

It does 2 things:

1. Clears marked statuses for todo items
2. Resets keystates in all columns

topydo.conf

@@ -93,3 +93,4 @@ L = swap_left
 R = swap_right
 <Left> = prev_column
 <Right> = next_column
+<Esc> = reset

topydo/lib/Config.py

@@ -142,6 +142,7 @@ class _Config:
                 'R': 'swap_right',
                 '<Left>': 'prev_column',
                 '<Right>': 'next_column',
+                '<Esc>': 'reset',
             },
         }
 

topydo/ui/Main.py

@@ -192,8 +192,6 @@ class UIApplication(CLIApplicationBase):
             if command.execute() != False:
                 self._post_execute()
 
-            self._clear_pending_todos()
-
         except TypeError:
             # TODO: show error message
             pass
@@ -201,14 +199,19 @@ class UIApplication(CLIApplicationBase):
     def _update_all_columns(self):
         for column, _ in self.columns.contents:
             column.update()
+            column.keystate = None
 
     def _post_execute(self):
         # store dirty flag because base _post_execute will reset it after flush
         dirty = self.todolist.dirty
         super()._post_execute()
 
-        if dirty:
-            self._update_all_columns()
+        if dirty or self.pending_todos:
+            self._reset_state()
+
+    def _reset_state(self):
+        self.pending_todos = []
+        self._update_all_columns()
 
     def _blur_commandline(self):
         self.mainwindow.focus_item = 0
@@ -278,13 +281,13 @@ class UIApplication(CLIApplicationBase):
             'copy_column': self._copy_column,
             'swap_left': self._swap_column_left,
             'swap_right': self._swap_column_right,
+            'reset': self._reset_state,
         }
         dispatch[p_action]()
 
     def _handle_input(self, p_input):
         dispatch = {
             ':': self._focus_commandline,
-            'esc': self._clear_pending_todos,
         }
 
         try:
@@ -344,7 +347,6 @@ class UIApplication(CLIApplicationBase):
         urwid.connect_signal(todolist, 'show_keystate', self._print_keystate)
         urwid.connect_signal(todolist, 'append_pending_todos', self._pending_todos_handler)
         urwid.connect_signal(todolist, 'check_pending_todos', self._is_pending)
-        urwid.connect_signal(todolist, 'clear_pending_todos', self._clear_pending_todos)
 
         options = self.columns.options(
             width_type='given',
@@ -461,11 +463,6 @@ class UIApplication(CLIApplicationBase):
 
         return sz
 
-    def _clear_pending_todos(self, p_refresh=True):
-        self.pending_todos = []
-        if p_refresh:
-            self._update_all_columns()
-
     def _is_pending(self):
         if len(self.pending_todos) > 0:
             return True

topydo/ui/TodoListWidget.py

@@ -64,7 +64,6 @@ class TodoListWidget(urwid.LineBox):
                                                'show_keystate',
                                                'append_pending_todos',
                                                'check_pending_todos',
-                                               'clear_pending_todos',
                                                ])
 
     @property
@@ -270,8 +269,8 @@ class TodoListWidget(urwid.LineBox):
         Currently supported actions are: 'up', 'down', 'home', 'end',
         'first_column', 'last_column', 'prev_column', 'next_column',
         'append_column', 'insert_column', 'edit_column', 'delete_column',
-        'copy_column', swap_right', 'swap_left', 'postpone', 'postpone_s', 'pri'
-        and 'mark'.
+        'copy_column', swap_right', 'swap_left', 'postpone', 'postpone_s',
+        'pri', 'mark' and 'reset'.
         """
         column_actions = ['first_column',
                           'last_column',
@@ -284,6 +283,7 @@ class TodoListWidget(urwid.LineBox):
                           'copy_column',
                           'swap_left',
                           'swap_right',
+                          'reset',
                           ]
 
         if p_action_str in column_actions: