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# Copyright (c) 2010-18, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/LICENSE.txt and may be redistributed only
# under the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
# Thanks for using Enthought open source!
# Enthought library imports.
from pyface.action.api import Action, ActionItem, Group
from traits.api import Any, Instance, List, Property, Unicode, on_trait_change
class TaskWindowToggleAction(Action):
""" An action for activating an application window.
"""
# 'Action' interface -----------------------------------------------------
#: The name of the action for the window.
name = Property(Unicode, depends_on='window.title')
#: The action is a toggle action.
style = 'toggle'
# 'TaskWindowToggleAction' interface -------------------------------------
# The window to use for this action.
window = Instance('pyface.tasks.task_window.TaskWindow')
# -------------------------------------------------------------------------
# 'Action' interface.
# -------------------------------------------------------------------------
def perform(self, event=None):
if self.window:
self.window.activate()
# -------------------------------------------------------------------------
# Private interface.
# -------------------------------------------------------------------------
def _get_name(self):
if self.window.title:
return self.window.title
return u''
@on_trait_change('window:activated')
def _window_activated(self):
self.checked = True
@on_trait_change('window:deactivated')
def _window_deactivated(self):
self.checked = False
class TaskWindowToggleGroup(Group):
""" A Group for toggling the activation state of an application's windows.
"""
# 'Group' interface ------------------------------------------------------
#: The id of the action group.
id = 'TaskWindowToggleGroup'
#: The actions in the action group
items = List
# 'TaskWindowToggleGroup' interface --------------------------------------
#: The application that contains the group.
application = Instance('pyface.tasks.tasks_application.TasksApplication')
#: The ActionManager to which the group belongs.
manager = Any
# -------------------------------------------------------------------------
# 'Group' interface.
# -------------------------------------------------------------------------
def destroy(self):
""" Called when the group is no longer required.
"""
super(TaskWindowToggleGroup, self).destroy()
if self.application:
self.application.on_trait_change(
self._rebuild, 'windows[]', remove=True
)
# -------------------------------------------------------------------------
# Private interface.
# -------------------------------------------------------------------------
def _get_items(self):
items = []
for window in self.application.windows:
active = window == self.application.active_window
action = TaskWindowToggleAction(window=window, checked=active)
items.append(ActionItem(action=action))
return items
def _rebuild(self):
# Clear out the old group, then build the new one.
for item in self.items:
item.destroy()
self.items = self._get_items()
# Inform our manager that it needs to be rebuilt.
self.manager.changed = True
# Trait initializers -----------------------------------------------------
def _items_default(self):
self.application.on_trait_change(self._rebuild, 'windows[]')
return self._get_items()
def _manager_default(self):
manager = self
while isinstance(manager, Group):
manager = manager.parent
return manager
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