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testing.py
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testing.py
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# Copyright (c) 2008-2013 by Enthought, Inc.
# All rights reserved.
from mock import Mock
from enable.abstract_window import AbstractWindow
from enable.events import MouseEvent, KeyEvent
from kiva.testing import KivaTestAssistant
class _MockWindow(AbstractWindow):
# FIXME: for some reason I cannot replace these functions with a Mock
def _get_control_size(self):
return 0, 0
def _redraw(self, coordinates=None):
pass
class EnableTestAssistant(KivaTestAssistant):
""" Mixin helper for enable/chaco components.
"""
def press_move_release(self, interactor, points, window=None,
alt_down=False, control_down=False,
shift_down=False):
""" Simulate the action of left click pressing, dragging and releasing
the mouse.
Parameters
----------
interactor : enable interactor object
This is object where the mouse events will be dispatched to.
points : A list of x,y tuple
The x,y positions of the three event sections. The first tuple
will be sent with a left-down event and the last will be sent
with a left-up. All the other events in the list will be sent
using a mouse-move event.
window : AbstractWindow, optional
The enable AbstractWindow to associate with the event. Default
is to create a mock class instance. If the window has a mouse
owner then that interactor is used.
alt_down : boolean, optional
The button is pressed while `alt` is down. Default value is False.
control_down : boolean, optional
The button is pressed while `control` is down. Default value is
False.
shift_down : boolean, optional
The button is pressed while `shift` is down. Default value is
False.
"""
x, y = points[0]
window = self.create_mock_window() if window is None else window
self.mouse_down(interactor, x, y, 'left', window=window,
alt_down=alt_down,
control_down=control_down,
shift_down=shift_down)
for x, y in points[1:-1]:
self.mouse_move(interactor, x, y, window=window,
alt_down=alt_down,
control_down=control_down,
shift_down=shift_down)
x, y = points[-1]
self.mouse_up(interactor, x, y, 'left', window=window,
alt_down=alt_down,
control_down=control_down,
shift_down=shift_down)
def create_mock_window(self):
""" Creates a Mock class that behaves as an enable Abstract Window.
Returns
-------
window : Mock
A mock class instance of an abstract window.
"""
window = _MockWindow()
window._capture_mouse = Mock()
window.set_pointer = Mock()
window._release_mouse = Mock()
window._redraw = Mock()
window.control = Mock()
window.control.set_pointer = Mock()
return window
def create_key_press(self, key, window=None, alt_down=False,
control_down=False, shift_down=False):
""" Creates a KeyEvent for the given Key.
Parameters
----------
key : string
The key of the event
window : AbstractWindow, optional
The enable AbstractWindow to associate with the event. Default
is to create a mock class instance.
alt_down : boolean, optional
The key is pressed while `alt` is down. Default value is False.
control_down : boolean, optional
The key is pressed while `control` is down. Default value is
False.
shift_down : boolean, optional
The key is pressed while `shift` is down. Default value is
False.
Returns
-------
key_event : KeyEvent
The enable KEyEvent instance of the desired event ready to be
passed to an enable Interactor.
"""
key_event = KeyEvent(character=key,
event_type='key_pressed',
alt_down=alt_down,
control_down=control_down,
shift_down=shift_down)
if window is None:
key_event.window = self.create_mock_window()
else:
key_event.window = window
return key_event
def create_mouse_event(self, **kwargs):
""" Creates a MouseEvent() with the specified attributes.
"""
# provide defaults for all key shift states
event_attributes = {
# key shift states
'alt_down': False,
'control_down': False,
'shift_down': False,
}
event_attributes.update(**kwargs)
event = MouseEvent(**event_attributes)
return event
def mouse_down(self, interactor, x, y, button='left', window=None,
alt_down=False, control_down=False, shift_down=False):
""" Send a mouse button down event to the interactor.
Parameters
----------
interactor : Interactor
The interactor (or subclass) where to dispatch the event.
x : float
The x coordinates of the mouse position
y : float
The y coordinates of the mouse position
button : {'left', 'right'}, optional
The mouse button for which to simulate a press (down) action.
window : AbstractWindow, optional
The enable AbstractWindow to associate with the event. Default
is to create a mock class instance. If the window has a mouse
owner then that interactor is used.
alt_down : boolean, optional
The button is pressed while `alt` is down. Default value is False.
control_down : boolean, optional
The button is pressed while `control` is down. Default value is
False.
shift_down : boolean, optional
The button is pressed while `shift` is down. Default value is
False.
Returns
-------
event : MouseEvent
The event instance after it has be processed by the `interactor`.
"""
window = self.create_mock_window() if window is None else window
event_attributes = {'x': x, 'y': y,
'alt_down': alt_down,
'control_down': control_down,
'shift_down': shift_down,
'{0}_down'.format(button): True,
'window': window}
event = self.create_mouse_event(**event_attributes)
self._mouse_event_dispatch(interactor, event,
'{0}_down'.format(button))
return event
def mouse_move(self, interactor, x, y, window=None,
alt_down=False, control_down=False, shift_down=False):
""" Send a mouse move event to the interactor.
Parameters
----------
interactor : Interactor
The interactor (or subclass) where to dispatch the event.
x : float
The x coordinates of the mouse position
y : float
The y coordinates of the mouse position
window : AbstractWindow, optional
The enable AbstractWindow to associate with the event. Default
is to create a mock class instance. If the window has a mouse
owner then that interactor is used.
alt_down : boolean, optional
The button is pressed while `alt` is down. Default value is False.
control_down : boolean, optional
The button is pressed while `control` is down. Default value is
False.
shift_down : boolean, optional
The button is pressed while `shift` is down. Default value is
False.
Returns
-------
event : MouseEvent
The event instance after it has be processed by the `interactor`.
"""
window = self.create_mock_window() if window is None else window
event = self.create_mouse_event(x=x, y=y,
window=window,
alt_down=alt_down,
control_down=control_down,
shift_down=shift_down)
self._mouse_event_dispatch(interactor, event, 'mouse_move')
return event
def mouse_up(self, interactor, x, y, button='left', window=None,
alt_down=False, control_down=False, shift_down=False):
""" Send a mouse button up event to the interactor.
Parameters
----------
interactor : Interactor
The interactor (or subclass) where to dispatch the event.
x : float
The x coordinates of the mouse position
y : float
The y coordinates of the mouse position
button : {'left', 'right'}, optional
The mouse button for which to simulate a release (up) action.
window : AbstractWindow, optional
The enable AbstractWindow to associate with the event. Default
is to create a mock class instance. If the window has a mouse
owner then that interactor is used.
alt_down : boolean, optional
The button is pressed while `alt` is down. Default value is False.
control_down : boolean, optional
The button is pressed while `control` is down. Default value is
False.
shift_down : boolean, optional
The button is pressed while `shift` is down. Default value is
False.
Returns
-------
event : MouseEvent
The event instance after it has be processed by the `interactor`.
"""
window = self.create_mock_window() if window is None else window
event = self.create_mouse_event(x=x, y=y,
window=window,
alt_down=alt_down,
control_down=control_down,
shift_down=shift_down)
self._mouse_event_dispatch(interactor, event, '{0}_up'.format(button))
return event
def mouse_leave(self, interactor, x, y, window=None,
alt_down=False, control_down=False, shift_down=False):
""" Send a mouse click event to the interactor.
Parameters
----------
interactor : Interactor
The interactor (or subclass) where to dispatch the event.
x : float
The x coordinates of the mouse position
y : float
The y coordinates of the mouse position
window : AbstractWindow, optional
The enable AbstractWindow to associate with the event. Default
is to create a mock class instance. If the window has a mouse
owner then that interactor is used.
alt_down : boolean, optional
The button is pressed while `alt` is down. Default value is False.
control_down : boolean, optional
The button is pressed while `control` is down. Default value is
False.
shift_down : boolean, optional
The button is pressed while `shift` is down. Default value is
False.
Returns
-------
event : MouseEvent
The event instance after it has be processed by the `interactor`.
"""
window = self.create_mock_window() if window is None else window
event = self.create_mouse_event(x=x, y=y,
window=window,
alt_down=alt_down,
control_down=control_down,
shift_down=shift_down)
self._mouse_event_dispatch(interactor, event, 'mouse_leave')
return event
def send_key(self, interactor, key, window=None):
""" Sent a key press event to the interactor.
Parameters
----------
interactor : Interactor
The interactor (or subclass) where to dispatch the event.
key : string
The key press to simulate.
window : AbstractWindow, optional
The enable AbstractWindow to associate with the event. Default
is to create a mock class instance. If the window has a focus
owner then that interactor is used.
Returns
-------
event : KeyEvent
The event instance after it has be processed by the `interactor`.
"""
window = self.create_mock_window() if window is None else window
event = self.create_key_press(key, window=window)
self._key_event_dispatch(interactor, event)
return event
def _mouse_event_dispatch(self, interactor, event, suffix):
mouse_owner = event.window.mouse_owner
if mouse_owner is None:
interactor.dispatch(event, suffix)
else:
mouse_owner.dispatch(event, suffix)
def _key_event_dispatch(self, interactor, event):
focus_owner = event.window.focus_owner
if focus_owner is None:
interactor.dispatch(event, 'key_pressed')
else:
focus_owner.dispatch(event, 'key_pressed')