def test_the_touch_that_might_already_ended(actually_ended):
import time
from kivy.clock import Clock
from kivy.uix.widget import Widget
from kivy.tests.common import UnitTestTouch
import asynckivy as ak
from asynckivy.exceptions import MotionEventAlreadyEndedError
Clock.tick()
async def job(w, t):
if actually_ended:
with pytest.raises(MotionEventAlreadyEndedError):
async for __ in ak.rest_of_touch_moves(w, t):
pass
else:
async for __ in ak.rest_of_touch_moves(w, t):
pass
w = Widget()
t = UnitTestTouch(0, 0)
t.time_end = 1 # something other than -1
task = ak.start(job(w, t))
if actually_ended:
time.sleep(2.)
Clock.tick()
else:
t.grab_current = None
w.dispatch('on_touch_up', t)
t.grab_current = w
w.dispatch('on_touch_up', t)
assert task.done
def test_a_number_of_on_touch_moves_fired(touch_cls, n_touch_moves):
from time import perf_counter
from kivy.uix.widget import Widget
import asynckivy as ak
async def _test(w, t):
n = 0
async for __ in ak.rest_of_touch_moves(w, t):
n += 1
assert n == n_touch_moves
nonlocal done
done = True
done = False
w = Widget()
t = touch_cls()
ak.start(_test(w, t))
for __ in range(n_touch_moves):
t.grab_current = None
w.dispatch('on_touch_move', t)
t.grab_current = w
w.dispatch('on_touch_move', t)
t.grab_current = None
w.dispatch('on_touch_up', t)
t.grab_current = w
w.dispatch('on_touch_up', t)
assert done
def test_break_during_a_for_loop(touch_cls, holds_a_ref):
from kivy.uix.widget import Widget
import asynckivy as ak
async def _test(w, t):
import weakref
nonlocal n_touch_moves
weak_w = weakref.ref(w)
assert weak_w not in t.grab_list
if holds_a_ref:
agen = ak.rest_of_touch_moves(w, t)
async for __ in agen:
assert weak_w in t.grab_list
n_touch_moves += 1
if n_touch_moves == 2:
break
else:
async for __ in ak.rest_of_touch_moves(w, t):
assert weak_w in t.grab_list
n_touch_moves += 1
if n_touch_moves == 2:
break
assert weak_w not in t.grab_list # fails if holds_a_ref is True
await ak.event(w, 'on_touch_up')
nonlocal done
done = True
n_touch_moves = 0
done = False
w = Widget()
t = touch_cls()
ak.start(_test(w, t))
for expected in (
1,
2,
2,
):
t.grab_current = None
w.dispatch('on_touch_move', t)
t.grab_current = w
w.dispatch('on_touch_move', t)
assert n_touch_moves == expected
assert not done
t.grab_current = None
w.dispatch('on_touch_up', t)
t.grab_current = w
w.dispatch('on_touch_up', t)
assert n_touch_moves == 2
assert done
def test_eat_touch_events(touch_cls, eat_touch, expectation):
from kivy.uix.widget import Widget
import asynckivy as ak
async def _test(parent, t):
async for __ in ak.rest_of_touch_moves(parent, t, eat_touch=eat_touch):
pass
nonlocal done
done = True
done = False
n_touches = {
'move': 0,
'up': 0,
}
def on_touch_move(*args):
n_touches['move'] += 1
def on_touch_up(*args):
n_touches['up'] += 1
parent = Widget()
child = Widget(
on_touch_move=on_touch_move,
on_touch_up=on_touch_up,
)
parent.add_widget(child)
t = touch_cls()
ak.start(_test(parent, t))
for i in range(2):
t.grab_current = None
parent.dispatch('on_touch_move', t)
t.grab_current = parent
parent.dispatch('on_touch_move', t)
assert n_touches['move'] == expectation[i]
t.grab_current = None
parent.dispatch('on_touch_up', t)
t.grab_current = parent
parent.dispatch('on_touch_up', t)
assert n_touches['up'] == expectation[2]
assert done
def test_stop_dispatching(stop_dispatching, expectation):
from kivy.uix.widget import Widget
from kivy.tests.common import UnitTestTouch
import asynckivy as ak
async def _test(parent, t):
async for __ in ak.rest_of_touch_moves(
parent, t, stop_dispatching=stop_dispatching):
pass
n_touches = {
'move': 0,
'up': 0,
}
def on_touch_move(*args):
n_touches['move'] += 1
def on_touch_up(*args):
n_touches['up'] += 1
parent = Widget()
child = Widget(
on_touch_move=on_touch_move,
on_touch_up=on_touch_up,
)
parent.add_widget(child)
t = UnitTestTouch(0, 0)
task = ak.start(_test(parent, t))
for i in range(2):
t.grab_current = None
parent.dispatch('on_touch_move', t)
t.grab_current = parent
parent.dispatch('on_touch_move', t)
assert n_touches['move'] == expectation[i]
t.grab_current = None
parent.dispatch('on_touch_up', t)
t.grab_current = parent
parent.dispatch('on_touch_up', t)
assert n_touches['up'] == expectation[2]
assert task.done
def test_break_during_a_for_loop():
from kivy.uix.widget import Widget
from kivy.tests.common import UnitTestTouch
import asynckivy as ak
async def _test(w, t):
import weakref
nonlocal n_touch_moves
weak_w = weakref.ref(w)
assert weak_w not in t.grab_list
async for __ in ak.rest_of_touch_moves(w, t):
assert weak_w in t.grab_list
n_touch_moves += 1
if n_touch_moves == 2:
break
assert weak_w not in t.grab_list
await ak.event(w, 'on_touch_up')
n_touch_moves = 0
w = Widget()
t = UnitTestTouch(0, 0)
task = ak.start(_test(w, t))
for expected in (
1,
2,
2,
):
t.grab_current = None
w.dispatch('on_touch_move', t)
t.grab_current = w
w.dispatch('on_touch_move', t)
assert n_touch_moves == expected
assert not task.done
t.grab_current = None
w.dispatch('on_touch_up', t)
t.grab_current = w
w.dispatch('on_touch_up', t)
assert n_touch_moves == 2
assert task.done
def test_a_number_of_on_touch_moves_fired(n_touch_moves):
from kivy.uix.widget import Widget
from kivy.tests.common import UnitTestTouch
import asynckivy as ak
async def _test(w, t):
n = 0
async for __ in ak.rest_of_touch_moves(w, t):
n += 1
assert n == n_touch_moves
w = Widget()
t = UnitTestTouch(0, 0)
task = ak.start(_test(w, t))
for __ in range(n_touch_moves):
t.grab_current = None
w.dispatch('on_touch_move', t)
t.grab_current = w
w.dispatch('on_touch_move', t)
t.grab_current = None
w.dispatch('on_touch_up', t)
t.grab_current = w
w.dispatch('on_touch_up', t)
assert task.done
class Replay(App):
"""A widget that replays a game from a log file captured by Logger
Replay monkeypatches kivy.clock.time to fire events read from the log
file.
Touching the replay will change the replay speed based on the y (up/down)
-coordinate of the touch, from 50% to 200%. (NB. every clock tick is still
processed, so speedups might not actually be that big).
This is more of a dirty hack than other parts of the code.
"""
def __init__(self, log_filename):
super(Replay, self).__init__()
self.log_filename = log_filename
kivy.clock.time = self.time
self.stream = gzip.GzipFile(fileobj=open(self.log_filename, 'rb'))
self.first_tick = time()
self.last_tick = time()
self.time_elapsed = 0
self.stream_time = 0
self.next_id = 0
self.clock_speed = 1
self.running = True
def build(self):
self.top_widget = Widget()
self.content_widget = Widget()
self.top_widget.add_widget(self.content_widget)
self.top_widget.add_widget(SpeedAdjuster(self))
return self.top_widget
def time(self):
"""Like time.time(), but handles events from the log file
"""
current = time()
self.time_elapsed += (current - self.last_tick) * self.clock_speed
self.last_tick = current
if not self.running:
return self.last_tick
while self.stream and self.time_elapsed > self.stream_time:
try:
rec = pickle.load(self.stream)
except EOFError:
self.handle__end()
self.running = False
break
else:
getattr(self, 'handle_' + rec[0])(*rec[1:])
if rec[0] == 'dt':
# Ensure every tick gets handled
break
return self.first_tick + self.stream_time
def handle__end(self):
parent = self.top_widget.get_parent_window()
with self.top_widget.canvas:
Color(0, 0, 0.2, 0.5)
Rectangle(size=(parent.width, 40),
pos=(0, parent.height / 2 - 20))
self.top_widget.add_widget(Label(text='Replay finished',
width=self.top_widget.get_parent_window().width,
pos=(0, parent.height / 2 - 5), height=10, color=(1, 1, 1, 1)))
# Handlers for events from the log file:
def handle_random(self, state):
"""Set the random state"""
random.setstate(state)
def handle_add_widget(self, cls):
"""Add a child widget"""
self.content_widget.add_widget(cls())
def handle_dt(self, dt):
"""Tick the clock"""
self.stream_time += dt
def handle_down(self, attrs):
"""Generate a touch-down event"""
self.handle__touch_event(attrs, 'on_touch_down')
def handle_move(self, attrs):
"""Generate a touch-move event"""
self.handle__touch_event(attrs, 'on_touch_move')
def handle_up(self, attrs):
"""Generate a touch-up event"""
self.handle__touch_event(attrs, 'on_touch_up')
def handle__touch_event(self, attrs, event):
"""Generate any touch-down event"""
touch = ReplayMotionEvent(None, attrs['id'], attrs)
for name, value in attrs.items():
setattr(touch, name, value)
self.content_widget.dispatch(event, touch)
def handle_window_size(self, width, height):
print width, height
children_to_do = set([self.content_widget])
children_done = set()
while children_to_do:
child = children_to_do.pop()
child.window_width = width
child.window_height = height
children_done.add(child)
children_to_do.update(child.children)
children_to_do.difference_update(children_done)
self.content_widget.canvas.before.clear()
with self.content_widget.canvas.before:
PushMatrix()
win = self.content_widget.get_parent_window()
window_width = win.width
window_height = win.height
the_min = min(window_width / width, window_height / height)
Scale(the_min)
self.content_widget.canvas.after.clear()
with self.content_widget.canvas.after:
PopMatrix()
class Replay(App):
"""A widget that replays a game from a log file captured by Logger
Replay monkeypatches kivy.clock.time to fire events read from the log
file.
Touching the replay will change the replay speed based on the y (up/down)
-coordinate of the touch, from 50% to 200%. (NB. every clock tick is still
processed, so speedups might not actually be that big).
This is more of a dirty hack than other parts of the code.
"""
def __init__(self, log_filename):
super(Replay, self).__init__()
self.log_filename = log_filename
kivy.clock.time = self.time
self.stream = gzip.GzipFile(fileobj=open(self.log_filename, 'rb'))
self.first_tick = time()
self.last_tick = time()
self.time_elapsed = 0
self.stream_time = 0
self.next_id = 0
self.clock_speed = 1
self.running = True
def build(self):
self.top_widget = Widget()
self.content_widget = Widget()
self.top_widget.add_widget(self.content_widget)
self.top_widget.add_widget(SpeedAdjuster(self))
return self.top_widget
def time(self):
"""Like time.time(), but handles events from the log file
"""
current = time()
self.time_elapsed += (current - self.last_tick) * self.clock_speed
self.last_tick = current
if not self.running:
return self.last_tick
while self.stream and self.time_elapsed > self.stream_time:
try:
rec = pickle.load(self.stream)
except EOFError:
self.handle__end()
self.running = False
break
else:
getattr(self, 'handle_' + rec[0])(*rec[1:])
if rec[0] == 'dt':
# Ensure every tick gets handled
break
return self.first_tick + self.stream_time
def handle__end(self):
parent = self.top_widget.get_parent_window()
with self.top_widget.canvas:
Color(0, 0, 0.2, 0.5)
Rectangle(size=(parent.width, 40), pos=(0, parent.height / 2 - 20))
self.top_widget.add_widget(
Label(text='Replay finished',
width=self.top_widget.get_parent_window().width,
pos=(0, parent.height / 2 - 5),
height=10,
color=(1, 1, 1, 1)))
# Handlers for events from the log file:
def handle_random(self, state):
"""Set the random state"""
random.setstate(state)
def handle_add_widget(self, cls):
"""Add a child widget"""
self.content_widget.add_widget(cls())
def handle_dt(self, dt):
"""Tick the clock"""
self.stream_time += dt
def handle_down(self, attrs):
"""Generate a touch-down event"""
self.handle__touch_event(attrs, 'on_touch_down')
def handle_move(self, attrs):
"""Generate a touch-move event"""
self.handle__touch_event(attrs, 'on_touch_move')
def handle_up(self, attrs):
"""Generate a touch-up event"""
self.handle__touch_event(attrs, 'on_touch_up')
def handle__touch_event(self, attrs, event):
"""Generate any touch-down event"""
touch = ReplayMotionEvent(None, attrs['id'], attrs)
for name, value in attrs.items():
setattr(touch, name, value)
self.content_widget.dispatch(event, touch)
def handle_window_size(self, width, height):
print width, height
children_to_do = set([self.content_widget])
children_done = set()
while children_to_do:
child = children_to_do.pop()
child.window_width = width
child.window_height = height
children_done.add(child)
children_to_do.update(child.children)
children_to_do.difference_update(children_done)
self.content_widget.canvas.before.clear()
with self.content_widget.canvas.before:
PushMatrix()
win = self.content_widget.get_parent_window()
window_width = win.width
window_height = win.height
the_min = min(window_width / width, window_height / height)
Scale(the_min)
self.content_widget.canvas.after.clear()
with self.content_widget.canvas.after:
PopMatrix()
