Remove on_click, doesn't apply

IPython/html/widgets/widget_string.py

@@ -1,111 +1,93
 """StringWidget class.  
 
 Represents a unicode string using a widget.
 """
 #-----------------------------------------------------------------------------
 # Copyright (c) 2013, the IPython Development Team.
 #
 # Distributed under the terms of the Modified BSD License.
 #
 # The full license is in the file COPYING.txt, distributed with this software.
 #-----------------------------------------------------------------------------
 
 #-----------------------------------------------------------------------------
 # Imports
 #-----------------------------------------------------------------------------
 import inspect
 import types
 
 from .widget import Widget
 from IPython.utils.traitlets import Unicode, Bool, List, Int
 
 #-----------------------------------------------------------------------------
 # Classes
 #-----------------------------------------------------------------------------
 class StringWidget(Widget):
     target_name = Unicode('StringWidgetModel')
     default_view_name = Unicode('TextBoxView')
 
     # Keys
     _keys = ['value', 'disabled', 'description']
     value = Unicode(help="String value")
     disabled = Bool(False, help="Enable or disable user changes")
     description = Unicode(help="Description of the value this widget represents")
 
 
     def __init__(self, **kwargs):
         super(StringWidget, self).__init__(**kwargs)
         self._submission_callbacks = []        
         self.on_msg(self._handle_string_msg)
 
 
     def scroll_to_bottom(self):
         self._comm.send({"method": "scroll_to_bottom"})
 
 
-    def on_click(self, callback, remove=False):
-        """Register a callback to execute when the button is clicked.  The
-        callback can either accept no parameters or one sender parameter:
-        - callback()
-        - callback(sender)
-        If the callback has a sender parameter, the ButtonWidget instance that
-        called the callback will be passed into the method as the sender.
-
-        Parameters
-        ----------
-        remove : bool (optional)
-            Set to true to remove the callback from the list of callbacks."""
-        if remove:
-            self._click_handlers.remove(callback)
-        elif not callback in self._click_handlers:
-            self._click_handlers.append(callback)
-
-
     def _handle_string_msg(self, content):
         """Handle a msg from the front-end
 
         Parameters
         ----------
         content: dict
             Content of the msg."""
         if 'event' in content and content['event'] == 'submit':
             self._handle_submit()
 
 
     def on_submit(self, callback, remove=False):
         """Register a callback to handle text submission (triggered when the 
         user clicks enter).
 
         Parameters
         callback: Method handle
             Function to be called when the text has been submitted.  Function
             can have two possible signatures:
             callback()
             callback(sender)
         remove: bool (optional)
             Whether or not to unregister the callback"""
         if remove and callback in self._submission_callbacks:
             self._submission_callbacks.remove(callback)
         elif not remove and not callback in self._submission_callbacks:
             self._submission_callbacks.append(callback)
 
 
     def _handle_submit(self):
         """Handles when a string widget view is submitted."""
         for handler in self._submission_callbacks:
             if callable(handler):
                 argspec = inspect.getargspec(handler)
                 nargs = len(argspec[0])
 
                 # Bound methods have an additional 'self' argument
                 if isinstance(handler, types.MethodType):
                     nargs -= 1
 
                 # Call the callback
                 if nargs == 0:
                     handler()
                 elif nargs == 1:
                     handler(self)
                 else:
                     raise TypeError('StringWidget submit callback must ' \
                         'accept 0 or 1 arguments.')