155 lines
4.4 KiB
Python
155 lines
4.4 KiB
Python
# Safe Eyes is a utility to remind you to take break frequently
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# to protect your eyes from eye strain.
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# Copyright (C) 2017 Gobinath
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import datetime
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import logging
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import subprocess
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import threading
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from safeeyes import Utility
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from safeeyes.model import State
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"""
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Safe Eyes smart pause plugin
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"""
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context = None
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idle_condition = threading.Condition()
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lock = threading.Lock()
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active = False
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idle_time = 0
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enable_safe_eyes = None
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disable_safe_eyes = None
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smart_pause_activated = False
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idle_start_time = None
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next_break_time = None
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break_interval = 0
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def __system_idle_time():
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"""
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Get system idle time in minutes.
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Return the idle time if xprintidle is available, otherwise return 0.
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"""
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try:
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return int(subprocess.check_output(['xprintidle']).decode('utf-8')) / 60000 # Convert to minutes
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except BaseException:
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return 0
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def __is_active():
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"""
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Thread safe function to see if this plugin is active or not.
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"""
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is_active = False
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with lock:
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is_active = active
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return is_active
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def __set_active(is_active):
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"""
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Thread safe function to change the state of the plugin.
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"""
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global active
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with lock:
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active = is_active
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def init(ctx, safeeyes_config, plugin_config):
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"""
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Initialize the plugin.
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"""
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global context
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global enable_safe_eyes
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global disable_safe_eyes
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global idle_time
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global break_interval
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logging.debug('Initialize Smart Pause plugin')
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context = ctx
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enable_safe_eyes = context['api']['enable_safeeyes']
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disable_safe_eyes = context['api']['disable_safeeyes']
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idle_time = plugin_config['idle_time']
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break_interval = safeeyes_config.get('break_interval') * 60
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def __start_idle_monitor():
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"""
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Continuously check the system idle time and pause/resume Safe Eyes based on it.
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"""
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global smart_pause_activated
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global idle_start_time
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while __is_active():
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# Wait for 2 seconds
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idle_condition.acquire()
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idle_condition.wait(2)
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idle_condition.release()
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if __is_active():
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# Get the system idle time
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system_idle_time = __system_idle_time()
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if system_idle_time >= idle_time and context['state'] == State.WAITING:
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smart_pause_activated = True
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idle_start_time = datetime.datetime.now()
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logging.info('Pause Safe Eyes due to system idle')
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disable_safe_eyes()
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elif system_idle_time < idle_time and context['state'] == State.STOPPED:
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logging.info('Resume Safe Eyes due to user activity')
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smart_pause_activated = False
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idle_period = (datetime.datetime.now() - idle_start_time)
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if idle_period.total_seconds() < break_interval:
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next_break = next_break_time + idle_period
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enable_safe_eyes(next_break.timestamp())
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else:
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enable_safe_eyes()
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def on_start():
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"""
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Start a thread to continuously call xprintidle.
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"""
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global active
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if not __is_active():
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# If SmartPause is already started, do not start it again
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logging.debug('Start Smart Pause plugin')
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__set_active(True)
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Utility.start_thread(__start_idle_monitor)
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def on_stop():
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"""
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Stop the thread from continuously calling xprintidle.
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"""
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global active
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global smart_pause_activated
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if smart_pause_activated:
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# Safe Eyes is stopped due to system idle
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smart_pause_activated = False
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return
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logging.debug('Stop Smart Pause plugin')
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__set_active(False)
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idle_condition.acquire()
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idle_condition.notify_all()
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idle_condition.release()
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def update_next_break(dateTime):
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"""
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Update the next break time.
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"""
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global next_break_time
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next_break_time = dateTime
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