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#-----------------------------------------------------------------------------
#
# Copyright (c) 2005-2006 by Enthought, Inc.
# All rights reserved.
#
# Author: David C. Morrill <dmorrill@enthought.com>
#
#-----------------------------------------------------------------------------
""" An action that deletes a user perspective. """
# Enthought library imports.
from pyface.api import YES
# Local imports.
from .user_perspective_action import UserPerspectiveAction
class DeleteUserPerspectiveAction(UserPerspectiveAction):
""" An action that deletes a user perspective. """
#### 'Action' interface ###################################################
# The action's unique identifier (may be None).
id = 'pyface.workbench.action.delete_user_perspective_action'
# The action's name (displayed on menus/tool bar tools etc).
name = 'Delete Perspective'
###########################################################################
# 'Action' interface.
###########################################################################
def perform(self, event):
""" Perform the action. """
window = event.window
manager = window.workbench.user_perspective_manager
# The perspective to delete.
perspective = window.active_perspective
# Make sure that the user isn't having second thoughts!
message = 'Are you sure you want to delete the "%s" perspective?' % \
perspective.name
answer = window.confirm(message, title='Confirm Delete')
if answer == YES:
# Set the active perspective to be the first remaining perspective.
#
# There is always a default NON-user perspective (even if no
# perspectives are explicitly defined) so we should never(!) not
# be able to find one!
window.active_perspective = self._get_next_perspective(window)
# Remove the perspective from the window.
window.perspectives.remove(perspective)
# Remove it from the user perspective manager.
manager.remove(perspective.id)
return
###########################################################################
# Private interface.
###########################################################################
def _get_next_perspective(self, window):
""" Return the first perspective that is not the active one! """
if window.active_perspective is window.perspectives[0]:
index = 1
else:
index = 0
return window.perspectives[index]
#### EOF #####################################################################
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