def __init__(self):
self.status = Status.uninitialized
self.start_time = None
self.state = StateChange()
self.changes = ChangeStore()
self.action = Action()
self.device_info = device.info
class AndroidEvent(object):
def __init__(self):
self.status = Status.uninitialized
self.start_time = None
self.state = StateChange()
self.changes = ChangeStore()
self.action = Action()
self.device_info = device.info
def init(self, start_time, start_state):
self.status = Status.initialized
self.start_time = start_time
self.state.start.xml = start_state
return self
def is_start(self, event_property):
return self.status is Status.uninitialized and event_property == TYPE_START_OR_END
def is_end(self, event_property):
return self.status is Status.initialized and event_property == TYPE_START_OR_END
@classmethod
def recognized(cls, type):
return type in EVENT_TYPES
def changed(self, type, time, value):
if self.status is Status.initialized:
delta_time = time - self.start_time
self.changes.append(AndroidEventChange(type, delta_time, time, value))
else:
print 'Ignored uninitialized event.'
def preprocess(self, end_event):
try:
self.status = Status.preprocessed
self.state.end.xml = end_event
# TODO(johnliu): interpolate a curve, for now just use start and end points.
start = self.changes.start()
end = self.changes.end()
if abs(start.x - end.x) <= 25 and abs(start.y - end.y) <= 25:
if start.y >= self.device_info['displayHeight']:
self.action.init(ACTION_BACK)
else:
self.action.init(ACTION_TOUCH, start.x, start.y)
else:
self.action.init(ACTION_DRAG, start, end, self.changes.duration())
except Exception as e:
self.status = Status.discarded
print e
print 'Got event: %s' % self
def process(self):
try:
self.status = Status.processed
if not self.action.is_back():
self.state.start.process(self.changes.start())
self.state.end.process(self.changes.end())
if not len(self.state.start.chain) or not len(self.state.end.chain):
self.status = Status.discarded
except Exception as e:
self.status = Status.discarded
print e
print 'Processed: %s' % self
def delay(self, other):
if other is None:
return 0
start_time = self.changes.max_time()
end_time = other.changes.min_time()
return abs(end_time - start_time)
def call(self):
if self.status >= Status.processed:
self.action.call()
else:
print 'Event not processed.'
def __repr__(self):
text_start = '<AndroidEvent(%s)>'
text_end = ':\n %s'
t, m = (None, None)
if self.status is Status.uninitialized:
t = 'null'
if self.status is Status.discarded:
t = 'discarded'
if self.status is Status.initialized:
t = 'unprocessed'
if self.status >= Status.preprocessed:
start = self.changes.start()
end = self.changes.end()
duration = self.changes.duration()
t = self.action.type
if self.action.is_drag():
m = '\t%s ->\n\t%s \n\tin %f' % (start, end, duration)
elif self.action.is_touch():
m = '\t%s' % (start,)
if self.status is Status.processed:
if self.action.is_drag():
m += ', \n\tfrom: %s ->\n\t%s' % (self.state.start.chain[-1], self.state.end.chain[-1])
elif self.action.is_touch():
m += ', \n\tin: %s' % self.state.start.chain[-1]
text = text_start
if m: text += text_end % m
return text % t
