def get_handler_object(app, action_name):
"""Find a (nominal) handler for a named buttonmap action.
:param app: MyPaint application instance to use for the lookup
:param action_name: machine-readable action name string.
:rtype: tuple of the form (handler_type, handler_obj)
Defined handler_type strings and their handler_objs are: "mode_class" (an
instantiable InteractionMode class), "popup_state" (an activatable popup
state), "gtk_action" (an activatable gtk.Action), or "no_handler" (the
value None).
"""
from gui.mode import ModeRegistry, InteractionMode
mode_class = ModeRegistry.get_mode_class(action_name)
if mode_class is not None:
assert issubclass(mode_class, InteractionMode)
return ("mode_class", mode_class)
elif action_name in app.drawWindow.popup_states:
popup_state = app.drawWindow.popup_states[action_name]
return ("popup_state", popup_state)
else:
action = app.find_action(action_name)
if action is not None:
return ("gtk_action", action)
else:
return ("no_handler", None)
def get_handler_object(app, action_name):
"""Find a (nominal) handler for a named buttonmap action.
:param app: MyPaint application instance to use for the lookup
:param action_name: machine-readable action name string.
:rtype: tuple of the form (handler_type, handler_obj)
Defined handler_type strings and their handler_objs are: "mode_class" (an
instantiable InteractionMode class), "popup_state" (an activatable popup
state), "gtk_action" (an activatable Gtk.Action), or "no_handler" (the
value None).
"""
from gui.mode import ModeRegistry, InteractionMode
mode_class = ModeRegistry.get_mode_class(action_name)
if mode_class is not None:
assert issubclass(mode_class, InteractionMode)
return ("mode_class", mode_class)
elif action_name in app.drawWindow.popup_states:
popup_state = app.drawWindow.popup_states[action_name]
return ("popup_state", popup_state)
else:
action = app.find_action(action_name)
if action is not None:
return ("gtk_action", action)
else:
return ("no_handler", None)