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import uuid
import logging
import core.event
import util.cli
LEFT_MOUSE = 1
MIDDLE_MOUSE = 2
RIGHT_MOUSE = 3
WHEEL_UP = 4
WHEEL_DOWN = 5
UPDATE = -1
def button_name(button):
if button == LEFT_MOUSE:
return "left-mouse"
if button == RIGHT_MOUSE:
return "right-mouse"
if button == MIDDLE_MOUSE:
return "middle-mouse"
if button == WHEEL_UP:
return "wheel-up"
if button == WHEEL_DOWN:
return "wheel-down"
if button == UPDATE:
return "update"
return "n/a"
class Object(object):
def __init__(self):
super(Object, self).__init__()
self.id = str(uuid.uuid4())
def __event_id(obj_id, button):
return "{}::{}".format(obj_id, button_name(button))
def __execute(event, cmd, wait=False):
try:
util.cli.execute(
cmd.format(instance=event.get("instance", ""), name=event.get("name", ""),),
wait=wait,
shell=True,
)
except Exception as e:
logging.error("failed to invoke callback: {}".format(e))
def register(obj, button=None, cmd=None, wait=False):
event_id = __event_id(obj.id if obj is not None else "", button)
logging.debug("registering callback {}".format(event_id))
core.event.unregister(event_id) # make sure there's always only one input event
if callable(cmd):
core.event.register_exclusive(event_id, cmd)
elif obj and hasattr(obj, cmd) and callable(getattr(obj, cmd)):
core.event.register_exclusive(event_id, lambda event: getattr(obj, cmd)(event))
else:
core.event.register_exclusive(event_id, lambda event: __execute(event, cmd, wait))
def trigger(event):
if not "button" in event:
return
triggered = False
for field in ["instance", "name"]:
if not field in event:
continue
if core.event.trigger(__event_id(event[field], event["button"]), event):
triggered = True
if not triggered:
core.event.trigger(__event_id("", event["button"]), event)
# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
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