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# (C) Copyright 2004-2023 Enthought, Inc., Austin, TX
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in 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!
from unittest import TestCase, skipIf
from pyface.action.api import ActionEvent
from traits.api import Any, HasTraits, Bool, TraitError
from traitsui.api import (
Action,
CloseAction,
Handler,
HelpAction,
RedoAction,
RevertAction,
UI,
UndoAction,
)
from traitsui.tests._tools import BaseTestMixin, is_null
class PyfaceAction(Action):
name = "Test Action"
performed = Bool()
def perform(self, event):
self.performed = True
class TraitsUIAction(Action):
name = "Test Action"
performed = Bool()
def perform(self):
self.performed = True
class SampleHandler(Handler):
action_performed = Bool()
info_action_performed = Bool()
click_performed = Bool()
undo_performed = Bool()
redo_performed = Bool()
revert_performed = Bool()
apply_performed = Bool()
close_performed = Bool()
help_performed = Bool()
init_return_value = Any(True)
def init(self, info):
return self.init_return_value
def action_handler(self):
self.action_performed = True
def info_action_handler(self, info):
self.info_action_performed = True
def revert(self, info):
self.revert_perfomed = True
def apply(self, info):
self.apply_perfomed = True
def show_help(self, info, control=None):
self.help_performed = True
def _action_clicked(self):
self.click_performed = True
def _on_undo(self, info):
super()._on_undo(info)
self.undo_performed = True
def _on_redo(self, info):
super()._on_redo(info)
self.redo_performed = True
def _on_revert(self, info):
super()._on_revert(info)
self.revert_performed = True
def _on_close(self, info):
super()._on_close(info)
self.close_performed = True
class SampleObject(HasTraits):
object_action_performed = Bool()
action_performed = Bool()
info_action_performed = Bool()
click_performed = Bool()
def object_action_handler(self):
self.object_action_performed = True
def action_handler(self):
self.action_performed = True
def info_action_handler(self, info):
self.info_action_performed = True
def _action_click(self):
self.click_performed = True
class TestHandler(BaseTestMixin, TestCase):
def setUp(self):
BaseTestMixin.setUp(self)
def tearDown(self):
BaseTestMixin.tearDown(self)
def test_perform_pyface_action(self):
object = SampleObject()
handler = SampleHandler()
action = PyfaceAction()
event = ActionEvent()
ui = UI(handler=handler, context={"object": object})
info = ui.info
handler.perform(info, action, event)
self.assertTrue(action.performed)
def test_perform_traitsui_action(self):
object = SampleObject()
handler = SampleHandler()
action = TraitsUIAction()
event = ActionEvent()
ui = UI(handler=handler, context={"object": object})
info = ui.info
handler.perform(info, action, event)
self.assertTrue(action.performed)
self.assertFalse(handler.action_performed)
self.assertFalse(handler.info_action_performed)
self.assertFalse(handler.click_performed)
self.assertFalse(object.action_performed)
self.assertFalse(object.info_action_performed)
self.assertFalse(object.click_performed)
def test_perform_action_handler(self):
object = SampleObject()
handler = SampleHandler()
action = TraitsUIAction(name="action", action="action_handler")
event = ActionEvent()
ui = UI(handler=handler, context={"object": object})
info = ui.info
handler.perform(info, action, event)
self.assertTrue(handler.action_performed)
self.assertFalse(handler.info_action_performed)
self.assertFalse(handler.click_performed)
self.assertFalse(object.action_performed)
self.assertFalse(object.info_action_performed)
self.assertFalse(object.click_performed)
self.assertFalse(action.performed)
def test_perform_info_action_handler(self):
object = SampleObject()
handler = SampleHandler()
action = TraitsUIAction(name="action", action="info_action_handler")
event = ActionEvent()
ui = UI(handler=handler, context={"object": object})
info = ui.info
handler.perform(info, action, event)
self.assertTrue(handler.info_action_performed)
self.assertFalse(handler.action_performed)
self.assertFalse(handler.click_performed)
self.assertFalse(object.action_performed)
self.assertFalse(object.info_action_performed)
self.assertFalse(object.click_performed)
self.assertFalse(action.performed)
def test_perform_click_handler(self):
object = SampleObject()
handler = SampleHandler()
action = TraitsUIAction(name="action", action="")
event = ActionEvent()
ui = UI(handler=handler, context={"object": object})
info = ui.info
handler.perform(info, action, event)
self.assertTrue(handler.click_performed)
self.assertFalse(handler.action_performed)
self.assertFalse(handler.info_action_performed)
self.assertFalse(object.action_performed)
self.assertFalse(object.info_action_performed)
self.assertFalse(object.click_performed)
self.assertFalse(action.performed)
def test_perform_object_handler(self):
object = SampleObject()
handler = SampleHandler()
action = TraitsUIAction(name="action", action="object_action_handler")
event = ActionEvent()
ui = UI(handler=handler, context={"object": object})
info = ui.info
handler.perform(info, action, event)
self.assertTrue(object.object_action_performed)
self.assertFalse(action.performed)
def test_undo_handler(self):
object = SampleObject()
handler = SampleHandler()
action = UndoAction
event = ActionEvent()
ui = UI(handler=handler, context={"object": object})
info = ui.info
handler.perform(info, action, event)
self.assertTrue(handler.undo_performed)
def test_redo_handler(self):
object = SampleObject()
handler = SampleHandler()
action = RedoAction
event = ActionEvent()
ui = UI(handler=handler, context={"object": object})
info = ui.info
handler.perform(info, action, event)
self.assertTrue(handler.redo_performed)
def test_revert_handler(self):
object = SampleObject()
handler = SampleHandler()
action = RevertAction
event = ActionEvent()
ui = UI(handler=handler, context={"object": object})
info = ui.info
handler.perform(info, action, event)
self.assertTrue(handler.revert_performed)
def test_close_handler(self):
object = SampleObject()
handler = SampleHandler()
action = CloseAction
event = ActionEvent()
ui = UI(handler=handler, context={"object": object})
info = ui.info
handler.perform(info, action, event)
self.assertTrue(handler.close_performed)
def test_help_handler(self):
object = SampleObject()
handler = SampleHandler()
action = HelpAction
event = ActionEvent()
ui = UI(handler=handler, context={"object": object})
info = ui.info
handler.perform(info, action, event)
self.assertTrue(handler.help_performed)
@skipIf(is_null(), "Null toolkit can't create UI")
def test_handler_init_false(self):
object = SampleObject()
handler = SampleHandler(init_return_value=False)
with self.assertRaises(TraitError):
object.edit_traits(handler=handler)
@skipIf(is_null(), "Null toolkit can't create UI")
def test_handler_init_none(self):
object = SampleObject()
handler = SampleHandler(init_return_value=None)
with self.assertRaises(ValueError):
object.edit_traits(handler=handler)
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