Current File : //usr/lib/python3/dist-packages/orca/system_information_presenter.py
# Orca
#
# Copyright 2005-2008 Sun Microsystems Inc.
# Copyright 2016-2024 Igalia, S.L.
# Copyright 2024 GNOME Foundation Inc.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., Franklin Street, Fifth Floor,
# Boston MA 02110-1301 USA.
"""Module for presenting system information"""
__id__ = "$Id$"
__version__ = "$Revision$"
__date__ = "$Date$"
__copyright__ = "Copyright (c) 2005-2008 Sun Microsystems Inc." \
"Copyright (c) 2016-2024 Igalia, S.L." \
"Copyright (c) 2024 GNOME Foundation Inc."
__license__ = "LGPL"
try:
import psutil
except ModuleNotFoundError:
psutil = None
import time
from . import cmdnames
from . import debug
from . import input_event
from . import keybindings
from . import messages
from . import settings_manager
class SystemInformationPresenter:
"""Provides commands to present system information."""
def __init__(self):
self._handlers = self.get_handlers(True)
self._bindings = keybindings.KeyBindings()
def get_bindings(self, refresh=False, is_desktop=True):
"""Returns the system-information-presenter keybindings."""
if refresh:
msg = "SYSTEM INFORMATION PRESENTER: Refreshing bindings."
debug.printMessage(debug.LEVEL_INFO, msg, True)
self._setup_bindings()
elif self._bindings.isEmpty():
self._setup_bindings()
return self._bindings
def get_handlers(self, refresh=False):
"""Returns the system-information-presenter handlers."""
if refresh:
msg = "SYSTEM INFORMATION PRESENTER: Refreshing handlers."
debug.printMessage(debug.LEVEL_INFO, msg, True)
self._setup_handlers()
return self._handlers
def _setup_handlers(self):
"""Sets up the system-information-presenter input event handlers."""
self._handlers = {}
self._handlers["presentTimeHandler"] = \
input_event.InputEventHandler(
self.present_time,
cmdnames.PRESENT_CURRENT_TIME)
self._handlers["presentDateHandler"] = \
input_event.InputEventHandler(
self.present_date,
cmdnames.PRESENT_CURRENT_DATE)
self._handlers["present_battery_status"] = \
input_event.InputEventHandler(
self.present_battery_status,
cmdnames.PRESENT_BATTERY_STATUS)
self._handlers["present_cpu_and_memory_usage"] = \
input_event.InputEventHandler(
self.present_cpu_and_memory_usage,
cmdnames.PRESENT_CPU_AND_MEMORY_USAGE)
msg = "SYSTEM INFORMATION PRESENTER: Handlers set up."
debug.printMessage(debug.LEVEL_INFO, msg, True)
def _setup_bindings(self):
"""Sets up the system-information-presenter key bindings."""
self._bindings = keybindings.KeyBindings()
self._bindings.add(
keybindings.KeyBinding(
"t",
keybindings.defaultModifierMask,
keybindings.ORCA_MODIFIER_MASK,
self._handlers.get("presentTimeHandler"),
1))
self._bindings.add(
keybindings.KeyBinding(
"t",
keybindings.defaultModifierMask,
keybindings.ORCA_MODIFIER_MASK,
self._handlers.get("presentDateHandler"),
2))
self._bindings.add(
keybindings.KeyBinding(
"",
keybindings.defaultModifierMask,
keybindings.ORCA_MODIFIER_MASK,
self._handlers.get("present_battery_status"),
1))
self._bindings.add(
keybindings.KeyBinding(
"",
keybindings.defaultModifierMask,
keybindings.ORCA_MODIFIER_MASK,
self._handlers.get("present_cpu_and_memory_usage"),
1))
msg = "SYSTEM INFORMATION PRESENTER: Bindings set up."
debug.printMessage(debug.LEVEL_INFO, msg, True)
def present_time(self, script, event=None):
"""Presents the current time."""
time_format = settings_manager.getManager().getSetting('presentTimeFormat')
script.presentMessage(time.strftime(time_format, time.localtime()))
return True
def present_date(self, script, event=None):
"""Presents the current date."""
data_format = settings_manager.getManager().getSetting('presentDateFormat')
script.presentMessage(time.strftime(data_format, time.localtime()))
return True
def present_battery_status(self, script, event=None):
"""Presents the battery status."""
if not (psutil and psutil.sensors_battery()):
script.presentMessage(messages.BATTERY_STATUS_UNKNOWN)
return True
battery = psutil.sensors_battery()
if battery.power_plugged:
msg = f"{messages.BATTERY_LEVEL % battery.percent} {messages.BATTERY_PLUGGED_IN_TRUE}"
else:
msg = f"{messages.BATTERY_LEVEL % battery.percent} {messages.BATTERY_PLUGGED_IN_FALSE}"
script.presentMessage(msg)
return True
def present_cpu_and_memory_usage(self, script, event=None):
"""Presents the cpu and memory usage."""
if psutil is None:
script.presentMessage(messages.CPU_AND_MEMORY_USAGE_UNKNOWN)
return True
cpu_usage = round(psutil.cpu_percent())
memory = psutil.virtual_memory()
memory_percent= round(memory.percent)
if memory.total > 1024 ** 3:
details = messages.memoryUsageGB(memory.used / (1024 ** 3), memory.total / (1024 ** 3))
else:
details = messages.memoryUsageMB(memory.used / (1024 ** 2), memory.total / (1024 ** 2))
msg = f"{messages.CPU_AND_MEMORY_USAGE_LEVELS % (cpu_usage, memory_percent)}. {details}"
script.presentMessage(msg)
return True
_presenter = SystemInformationPresenter()
def getPresenter():
return _presenter
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