def __init__(self, app, daemon_action, callback, undo_callback,
undo_outcome):
self._app = app
self._action = daemon_action
self._undo_outcome = undo_outcome
self._callback_mutex = Lock()
self._callback_called = False
self._callback_sync_sem = Semaphore(0)
self._callback_outcome = None
self._callback = callback
self._undo_callback = undo_callback
self._update_timer_elapsed = 0.0
self._update_timer_refresh = 0.5
self._update_timer = TimeScheduled(self._update_timer_refresh,
self._update_countdown_wrapper)
self._update_timer.set_delay_before(True)
self._update_timer.daemon = True
self._update_timer.name = "QueueActionNotificationBoxUpdateTimer"
self._timer = Timer(self.TIMER_SECONDS + 1, self._callback_wrapper)
self._action_label = Gtk.Label()
self._action_label.set_line_wrap_mode(Pango.WrapMode.WORD)
self._action_label.set_line_wrap(True)
self._action_label.set_property("expand", True)
self._action_label.set_alignment(0.02, 0.50)
self._update_countdown(int(self.TIMER_SECONDS))
pkg = self._app.get_details().pkg
context_id = "QueueActionNotificationContextId-%s" % (pkg, )
NotificationBox.__init__(self,
None,
message_widget=self._action_label,
message_type=Gtk.MessageType.WARNING,
context_id=context_id)
self.add_button(_("Confirm"), self._on_confirm)
self.add_button(_("Undo"), self._on_undo)
def _thread_dumper(self):
"""
If --dumper is in argv, a recurring thread dump
function will be spawned every 30 seconds.
"""
dumper_enable = self._nsargs.dumper
if dumper_enable:
task = None
def _dumper():
def _dump():
task.kill()
dump_signal(None, None)
timer = Timer(10.0, _dump)
timer.name = "MainThreadHearthbeatCheck"
timer.daemon = True
timer.start()
GLib.idle_add(timer.cancel)
task = TimeScheduled(5.0, _dumper)
task.name = "ThreadDumper"
task.daemon = True
task.start()
def __init__(self, app, daemon_action, callback, undo_callback,
undo_outcome):
self._app = app
self._action = daemon_action
self._undo_outcome = undo_outcome
self._callback_mutex = Lock()
self._callback_called = False
self._callback_sync_sem = Semaphore(0)
self._callback_outcome = None
self._callback = callback
self._undo_callback = undo_callback
self._update_timer_elapsed = 0.0
self._update_timer_refresh = 0.5
self._update_timer = TimeScheduled(
self._update_timer_refresh,
self._update_countdown_wrapper)
self._update_timer.set_delay_before(True)
self._update_timer.daemon = True
self._update_timer.name = "QueueActionNotificationBoxUpdateTimer"
self._timer = Timer(self.TIMER_SECONDS + 1, self._callback_wrapper)
self._action_label = Gtk.Label()
self._action_label.set_line_wrap_mode(Pango.WrapMode.WORD)
self._action_label.set_line_wrap(True)
self._action_label.set_property("expand", True)
self._action_label.set_alignment(0.02, 0.50)
self._update_countdown(int(self.TIMER_SECONDS))
pkg = self._app.get_details().pkg
context_id = "QueueActionNotificationContextId-%s" % (
pkg,)
NotificationBox.__init__(
self, None, message_widget=self._action_label,
message_type=Gtk.MessageType.WARNING,
context_id=context_id)
self.add_button(_("Confirm"), self._on_confirm)
self.add_button(_("Undo"), self._on_undo)
def _thread_dumper(self):
"""
If --dumper is in argv, a recurring thread dump
function will be spawned every 30 seconds.
"""
dumper_enable = self._nsargs.dumper
if dumper_enable:
task = None
def _dumper():
def _dump():
task.kill()
dump_signal(None, None)
timer = Timer(10.0, _dump)
timer.name = "MainThreadHearthbeatCheck"
timer.daemon = True
timer.start()
GLib.idle_add(timer.cancel)
task = TimeScheduled(5.0, _dumper)
task.name = "ThreadDumper"
task.daemon = True
task.start()
def kill(self):
self._sem.release()
return TimeScheduled.kill(self)
def __init__(self, sem, *args, **kwargs):
self._sem = sem
TimeScheduled.__init__(self, *args, **kwargs)
class QueueActionNotificationBox(NotificationBox):
TIMER_SECONDS = 10.0
def __init__(self, app, daemon_action, callback, undo_callback,
undo_outcome):
self._app = app
self._action = daemon_action
self._undo_outcome = undo_outcome
self._callback_mutex = Lock()
self._callback_called = False
self._callback_sync_sem = Semaphore(0)
self._callback_outcome = None
self._callback = callback
self._undo_callback = undo_callback
self._update_timer_elapsed = 0.0
self._update_timer_refresh = 0.5
self._update_timer = TimeScheduled(self._update_timer_refresh,
self._update_countdown_wrapper)
self._update_timer.set_delay_before(True)
self._update_timer.daemon = True
self._update_timer.name = "QueueActionNotificationBoxUpdateTimer"
self._timer = Timer(self.TIMER_SECONDS + 1, self._callback_wrapper)
self._action_label = Gtk.Label()
self._action_label.set_line_wrap_mode(Pango.WrapMode.WORD)
self._action_label.set_line_wrap(True)
self._action_label.set_property("expand", True)
self._action_label.set_alignment(0.02, 0.50)
self._update_countdown(int(self.TIMER_SECONDS))
pkg = self._app.get_details().pkg
context_id = "QueueActionNotificationContextId-%s" % (pkg, )
NotificationBox.__init__(self,
None,
message_widget=self._action_label,
message_type=Gtk.MessageType.WARNING,
context_id=context_id)
self.add_button(_("Confirm"), self._on_confirm)
self.add_button(_("Undo"), self._on_undo)
def render(self):
"""
Overridden from NotificationBox
"""
outcome = NotificationBox.render(self)
self._start_time = time.time()
self._update_timer.start()
self._timer.start()
return outcome
def destroy(self):
"""
Overridden from NotificationBox
"""
self._update_timer.kill()
return NotificationBox.destroy(self)
def acquire(self):
"""
Acquire Callback outcome, when callback is eventually
spawned.
"""
self._callback_sync_sem.acquire()
return self._callback_outcome
def _callback_wrapper(self):
"""
Wrapper method that spawns the callback and stores the
outcome into _callback_outcome, releasing the Semaphore
once done.
"""
if self._callback_called:
return
with self._callback_mutex:
if self._callback_called:
return
self._callback_outcome = self._callback()
self._callback_called = True
GLib.idle_add(self.destroy)
self._callback_sync_sem.release()
def _update_countdown_wrapper(self):
"""
Wrapper function that is called every 0.5 seconds
updating the countdown status.
"""
self._update_timer_elapsed += self._update_timer_refresh
remaining = self.TIMER_SECONDS - self._update_timer_elapsed
if remaining < 0.1:
self._update_timer.kill()
return
GLib.idle_add(self._update_countdown, int(remaining))
def _update_countdown(self, seconds):
"""
Update Countdown message.
"""
msg = prepare_markup(
ngettext(
"<b>%s</b> Application Action will start "
"in <big><b>%d</b></big> second",
"<b>%s</b> Application Action will start "
"in <big><b>%d</b></big> seconds", seconds))
msg = msg % (
self._app.name,
seconds,
)
self._action_label.set_markup(prepare_markup(msg))
def _on_confirm(self, widget):
"""
Action has been confirmed.
"""
self._timer.cancel()
self._update_timer.kill()
self._callback_wrapper()
def _on_undo(self, widget):
"""
Action has been cancelled.
"""
self._timer.cancel()
self._update_timer.kill()
if self._callback_called:
return
with self._callback_mutex:
if self._callback_called:
return
self._callback_outcome = self._undo_outcome
if self._undo_callback is not None:
self._undo_callback()
self._callback_called = True
GLib.idle_add(self.destroy)
self._callback_sync_sem.release()
def is_managed(self):
"""
This NotificationBox cannot be destroyed easily.
"""
return True
def kill(self):
self._sem.release()
return TimeScheduled.kill(self)
def __init__(self, sem, *args, **kwargs):
self._sem = sem
TimeScheduled.__init__(self, *args, **kwargs)
class QueueActionNotificationBox(NotificationBox):
TIMER_SECONDS = 10.0
def __init__(self, app, daemon_action, callback, undo_outcome):
self._app = app
self._action = daemon_action
self._undo_outcome = undo_outcome
self._callback_mutex = Lock()
self._callback_called = False
self._callback_sync_sem = Semaphore(0)
self._callback_outcome = None
self._callback = callback
self._update_timer_elapsed = 0.0
self._update_timer_refresh = 0.5
self._update_timer = TimeScheduled(
self._update_timer_refresh,
self._update_countdown_wrapper)
self._update_timer.set_delay_before(True)
self._update_timer.daemon = True
self._update_timer.name = "QueueActionNotificationBoxUpdateTimer"
self._timer = Timer(self.TIMER_SECONDS + 1, self._callback_wrapper)
self._action_label = Gtk.Label()
self._action_label.set_line_wrap_mode(Pango.WrapMode.WORD)
self._action_label.set_line_wrap(True)
self._action_label.set_property("expand", True)
self._action_label.set_alignment(0.02, 0.50)
self._update_countdown(int(self.TIMER_SECONDS))
pkg = self._app.get_details().pkg
context_id = "QueueActionNotificationContextId-%s" % (
pkg,)
NotificationBox.__init__(
self, None, message_widget=self._action_label,
message_type=Gtk.MessageType.WARNING,
context_id=context_id)
self.add_button(_("Confirm"), self._on_confirm)
self.add_button(_("Undo"), self._on_undo)
def render(self):
"""
Overridden from NotificationBox
"""
outcome = NotificationBox.render(self)
self._start_time = time.time()
self._update_timer.start()
self._timer.start()
return outcome
def destroy(self):
"""
Overridden from NotificationBox
"""
self._update_timer.kill()
return NotificationBox.destroy(self)
def acquire(self):
"""
Acquire Callback outcome, when callback is eventually
spawned.
"""
self._callback_sync_sem.acquire()
return self._callback_outcome
def _callback_wrapper(self):
"""
Wrapper method that spawns the callback and stores the
outcome into _callback_outcome, releasing the Semaphore
once done.
"""
if self._callback_called:
return
with self._callback_mutex:
if self._callback_called:
return
self._callback_outcome = self._callback()
self._callback_called = True
GLib.idle_add(self.destroy)
self._callback_sync_sem.release()
def _update_countdown_wrapper(self):
"""
Wrapper function that is called every 0.5 seconds
updating the countdown status.
"""
self._update_timer_elapsed += self._update_timer_refresh
remaining = self.TIMER_SECONDS - self._update_timer_elapsed
if remaining < 0.1:
self._update_timer.kill()
return
GLib.idle_add(self._update_countdown, int(remaining))
def _update_countdown(self, seconds):
"""
Update Countdown message.
"""
msg = prepare_markup(
ngettext("<b>%s</b> Application Action will start "
"in <big><b>%d</b></big> second",
"<b>%s</b> Application Action will start "
"in <big><b>%d</b></big> seconds",
seconds))
msg = msg % (self._app.name, seconds,)
self._action_label.set_markup(prepare_markup(msg))
def _on_confirm(self, widget):
"""
Action has been confirmed.
"""
self._timer.cancel()
self._update_timer.kill()
self._callback_wrapper()
def _on_undo(self, widget):
"""
Action has been cancelled.
"""
self._timer.cancel()
self._update_timer.kill()
if self._callback_called:
return
with self._callback_mutex:
if self._callback_called:
return
self._callback_outcome = self._undo_outcome
self._callback_called = True
GLib.idle_add(self.destroy)
self._callback_sync_sem.release()
def is_managed(self):
"""
This NotificationBox cannot be destroyed easily.
"""
return True
