def run(self):
"""Record opacity changes until stop signal received."""
while self.keep_going:
opacity = xutil.request_opacity(self.window).unpack()
if opacity != self.opacity_events[-1]:
self.opacity_events.append(opacity)
self.done = True
def flash_window(self, window):
"""Briefly change the opacity of a Xorg window."""
log('Flashing window %s', str(window))
try:
pre_flash_opacity = xutil.request_opacity(window).unpack()
log('Current opacity = %s', str(pre_flash_opacity))
log('Beginning flash animation...')
flash_series = self.compute_flash_series(pre_flash_opacity)
for opacity in flash_series:
xutil.set_opacity(window, opacity)
sleep(self.timechunk)
log('Resetting opacity to default')
if pre_flash_opacity:
xutil.set_opacity(window, pre_flash_opacity)
else:
xutil.delete_opacity(window)
except WindowError:
log('Attempted to flash a nonexistant window %s, ignoring...',
str(window))
log('Unlocking window %s', window)
self.locked_windows.discard(window)
def test_get_set_opacity(window):
assert not xutil.request_opacity(window).unpack()
xutil.set_opacity(window, 0.5)
assert xutil.request_opacity(window).unpack() == approx(0.5, 0.00001)
def test_delete_opacity(window):
xutil.set_opacity(window, 0.5)
assert xutil.request_opacity(window).unpack()
xutil.delete_opacity(window)
assert not xutil.request_opacity(window).unpack()
def __init__(self, window):
super(WindowWatcher, self).__init__()
self.window = window
self.opacity_events = [xutil.request_opacity(self.window).unpack()]
self.keep_going = True
self.done = False