2015-08-18 16:29:56 +00:00
|
|
|
# Copyright 2015 Canonical, Ltd.
|
|
|
|
#
|
|
|
|
# This program is free software: you can redistribute it and/or modify
|
|
|
|
# it under the terms of the GNU Affero General Public License as
|
|
|
|
# published by the Free Software Foundation, either version 3 of the
|
|
|
|
# License, or (at your option) any later version.
|
|
|
|
#
|
|
|
|
# This program is distributed in the hope that it will be useful,
|
|
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
# GNU Affero General Public License for more details.
|
|
|
|
#
|
|
|
|
# You should have received a copy of the GNU Affero General Public License
|
|
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
|
|
|
|
2016-11-01 23:44:04 +00:00
|
|
|
from abc import ABC, abstractmethod
|
2015-08-18 16:29:56 +00:00
|
|
|
import logging
|
2017-01-17 23:01:59 +00:00
|
|
|
import os
|
2015-08-18 16:29:56 +00:00
|
|
|
|
2016-06-30 18:17:01 +00:00
|
|
|
log = logging.getLogger("subiquitycore.controller")
|
2015-08-18 16:29:56 +00:00
|
|
|
|
|
|
|
|
2016-11-01 23:44:04 +00:00
|
|
|
class BaseController(ABC):
|
2016-07-26 02:16:46 +00:00
|
|
|
"""Base class for controllers."""
|
2015-08-18 16:29:56 +00:00
|
|
|
|
2016-10-10 23:48:28 +00:00
|
|
|
signals = []
|
|
|
|
|
2015-08-31 15:55:46 +00:00
|
|
|
def __init__(self, common):
|
|
|
|
self.ui = common['ui']
|
|
|
|
self.signal = common['signal']
|
|
|
|
self.opts = common['opts']
|
|
|
|
self.loop = common['loop']
|
|
|
|
self.prober = common['prober']
|
2016-06-22 19:19:54 +00:00
|
|
|
self.controllers = common['controllers']
|
2017-01-13 01:42:31 +00:00
|
|
|
self.pool = common['pool']
|
2017-11-14 21:30:09 +00:00
|
|
|
self.base_model = common['base_model']
|
2017-11-16 00:29:22 +00:00
|
|
|
self.all_answers = common['answers']
|
2018-02-07 21:37:22 +00:00
|
|
|
self.input_filter = common['input_filter']
|
2019-02-21 08:45:40 +00:00
|
|
|
self.scale_factor = common['scale_factor']
|
2019-03-01 00:23:03 +00:00
|
|
|
if 'snapd_connection' in common:
|
|
|
|
self.snapd_connection = common['snapd_connection']
|
2015-08-18 16:29:56 +00:00
|
|
|
|
|
|
|
def register_signals(self):
|
2016-07-26 02:16:46 +00:00
|
|
|
"""Defines signals associated with controller from model."""
|
2016-09-29 01:52:11 +00:00
|
|
|
signals = []
|
|
|
|
for sig, cb in self.signals:
|
|
|
|
signals.append((sig, getattr(self, cb)))
|
|
|
|
self.signal.connect_signals(signals)
|
2016-09-27 02:33:54 +00:00
|
|
|
|
2017-01-17 23:01:59 +00:00
|
|
|
def run_in_bg(self, func, callback):
|
|
|
|
"""Run func() in a thread and call callback on UI thread.
|
|
|
|
|
|
|
|
callback will be passed a concurrent.futures.Future containing
|
2018-05-18 00:16:41 +00:00
|
|
|
the result of func(). The result of callback is discarded. An
|
|
|
|
exception will crash the process so be careful!
|
2017-01-17 23:01:59 +00:00
|
|
|
"""
|
|
|
|
fut = self.pool.submit(func)
|
2018-05-22 18:43:28 +00:00
|
|
|
|
2017-01-17 23:01:59 +00:00
|
|
|
def in_main_thread(ignored):
|
2018-05-18 00:16:41 +00:00
|
|
|
callback(fut)
|
2018-05-22 18:43:28 +00:00
|
|
|
|
2017-01-17 23:01:59 +00:00
|
|
|
pipe = self.loop.watch_pipe(in_main_thread)
|
2018-05-22 18:43:28 +00:00
|
|
|
|
2017-01-17 23:01:59 +00:00
|
|
|
def in_random_thread(ignored):
|
|
|
|
os.write(pipe, b'x')
|
|
|
|
fut.add_done_callback(in_random_thread)
|
2017-01-17 01:26:07 +00:00
|
|
|
|
2016-11-01 23:44:04 +00:00
|
|
|
@abstractmethod
|
|
|
|
def cancel(self):
|
|
|
|
pass
|
|
|
|
|
|
|
|
@abstractmethod
|
2016-09-27 02:33:54 +00:00
|
|
|
def default(self):
|
2016-11-01 23:44:04 +00:00
|
|
|
pass
|
2018-10-29 23:17:29 +00:00
|
|
|
|
|
|
|
# Stuff for fine grained actions, used by filesystem and network
|
|
|
|
# controller at time of writing this comment.
|
|
|
|
|
|
|
|
def _enter_form_data(self, form, data, submit, clean_suffix=''):
|
|
|
|
for k, v in data.items():
|
|
|
|
c = getattr(
|
|
|
|
self, '_action_clean_{}_{}'.format(k, clean_suffix), None)
|
|
|
|
if c is None:
|
|
|
|
c = getattr(self, '_action_clean_{}'.format(k), lambda x: x)
|
|
|
|
field = getattr(form, k)
|
|
|
|
from subiquitycore.ui.selector import Selector
|
|
|
|
v = c(v)
|
|
|
|
if isinstance(field.widget, Selector):
|
|
|
|
field.widget._emit('select', v)
|
|
|
|
field.value = v
|
|
|
|
yield
|
|
|
|
yield
|
|
|
|
for bf in form._fields:
|
|
|
|
bf.validate()
|
|
|
|
form.validated()
|
|
|
|
if submit:
|
|
|
|
if not form.done_btn.enabled:
|
|
|
|
raise Exception("answers left form invalid!")
|
|
|
|
form._click_done(None)
|
|
|
|
|
|
|
|
def _run_actions(self, actions):
|
|
|
|
for action in actions:
|
|
|
|
yield from self._answers_action(action)
|
|
|
|
|
2019-02-21 08:45:40 +00:00
|
|
|
def _run_iterator(self, it, delay=None):
|
|
|
|
if delay is None:
|
|
|
|
delay = 0.2/self.scale_factor
|
2018-10-29 23:17:29 +00:00
|
|
|
try:
|
|
|
|
next(it)
|
|
|
|
except StopIteration:
|
|
|
|
return
|
|
|
|
self.loop.set_alarm_in(
|
|
|
|
delay,
|
|
|
|
lambda *args: self._run_iterator(it, delay/1.1))
|