74 lines
2.0 KiB
Python
74 lines
2.0 KiB
Python
#
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# Optional desktop notifications.
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#
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from __future__ import absolute_import, division, print_function, unicode_literals
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try:
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# this import is allowed to fail, in which case the entire feature is unavailable
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from gi.repository import Notify
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import logging
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from . import icons as _icons
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# assumed to be working since the import succeeded
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available = True
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# cache references to shown notifications here, so if another status comes
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# while its notification is still visible we don't create another one
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_notifications = {}
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def init(app_title):
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"""Init the notifications system."""
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global available
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if available:
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if not Notify.is_initted():
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logging.info("starting desktop notifications")
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try:
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return Notify.init(app_title)
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except:
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logging.exception("initializing desktop notifications")
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available = False
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return available and Notify.is_initted()
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def uninit():
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if available and Notify.is_initted():
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logging.info("stopping desktop notifications")
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_notifications.clear()
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Notify.uninit()
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def show(dev, reason=None):
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"""Show a notification with title and text."""
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if available and Notify.is_initted():
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summary = dev.name
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# if a notification with same name is already visible, reuse it to avoid spamming
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n = _notifications.get(summary)
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if n is None:
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n = _notifications[summary] = Notify.Notification()
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message = reason or ('unpaired' if dev.status is None else
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(str(dev.status) or ('connected' if dev.status else 'inactive')))
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# we need to use the filename here because the notifications daemon
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# is an external application that does not know about our icon sets
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n.update(summary, message, _icons.device_icon_file(dev.name, dev.kind))
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urgency = Notify.Urgency.LOW if dev.status else Notify.Urgency.NORMAL
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n.set_urgency(urgency)
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try:
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# logging.debug("showing %s", n)
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n.show()
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except Exception:
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logging.exception("showing %s", n)
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except ImportError:
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available = False
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init = lambda app_title: False
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uninit = lambda: None
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show = lambda dev, reason: None
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