1  # base class for tk common dialogues
       2  #
       3  # this module provides a base class for accessing the common
       4  # dialogues available in Tk 4.2 and newer.  use filedialog,
       5  # colorchooser, and messagebox to access the individual
       6  # dialogs.
       7  #
       8  # written by Fredrik Lundh, May 1997
       9  #
      10  
      11  __all__ = ["Dialog"]
      12  
      13  from tkinter import Frame, _get_temp_root, _destroy_temp_root
      14  
      15  
      16  class ESC[4;38;5;81mDialog:
      17  
      18      command = None
      19  
      20      def __init__(self, master=None, **options):
      21          if master is None:
      22              master = options.get('parent')
      23          self.master = master
      24          self.options = options
      25  
      26      def _fixoptions(self):
      27          pass # hook
      28  
      29      def _fixresult(self, widget, result):
      30          return result # hook
      31  
      32      def show(self, **options):
      33  
      34          # update instance options
      35          for k, v in options.items():
      36              self.options[k] = v
      37  
      38          self._fixoptions()
      39  
      40          master = self.master
      41          if master is None:
      42              master = _get_temp_root()
      43          try:
      44              self._test_callback(master)  # The function below is replaced for some tests.
      45              s = master.tk.call(self.command, *master._options(self.options))
      46              s = self._fixresult(master, s)
      47          finally:
      48              _destroy_temp_root(master)
      49  
      50          return s
      51  
      52      def _test_callback(self, master):
      53          pass