119 lines
3.5 KiB
Python
119 lines
3.5 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright © 2013 Gerd Kohlberger <lowfi@chello.at>
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# Copyright © 2013, 2016 marmuta <marmvta@gmail.com>
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#
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# This file is part of Onboard.
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#
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# Onboard 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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#
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# Onboard 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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#
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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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from __future__ import division, print_function, unicode_literals
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from Onboard.utils import unicode_str
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import Onboard.osk as osk
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import logging
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_logger = logging.getLogger(__name__)
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class Sound(object):
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"""
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Sound singleton.
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Wrapper for osk.Audio.
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"""
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""" Event id for key feedback """
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key_feedback = "onboard-key-feedback"
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def __new__(cls, *args, **kwargs):
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"""
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Singleton magic.
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"""
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if not hasattr(cls, "self"):
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cls.self = object.__new__(cls, *args, **kwargs)
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cls.self.construct()
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return cls.self
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def __init__(self):
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"""
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Called multiple times, do not use.
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"""
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pass
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def construct(self):
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self._osk_audio = None
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try:
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self._osk_audio = osk.Audio()
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except Exception as ex:
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_logger.warning("Failed to create osk.Audio: " + unicode_str(ex))
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self.enable()
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self.cache_sample(self.key_feedback)
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def is_valid(self):
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""" Check initialization of the audio backend """
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return self._osk_audio is not None
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def play(self, event_id, x, y, xs, ys):
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""" Play a sound """
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try:
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if self.is_valid():
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self._osk_audio.play(event_id, x, y, xs, ys)
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except Exception as ex:
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_logger.warning("Failed to play sound: " + unicode_str(ex))
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def cancel(self):
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""" Cancel all playing sounds """
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try:
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if self.is_valid():
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self._osk_audio.cancel()
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except Exception as ex:
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_logger.warning("Failed to cancel sound: " + unicode_str(ex))
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def set_theme(self, name):
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""" Set the XDG sound theme """
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try:
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if self.is_valid():
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self._osk_audio.set_theme(name)
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except Exception as ex:
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_logger.warning("Failed to set sound theme: " + unicode_str(ex))
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def enable(self):
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""" Enable canberra audio output """
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try:
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if self.is_valid():
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self._osk_audio.enable()
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except Exception as ex:
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_logger.warning("Failed to enable audio: " + unicode_str(ex))
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def disable(self):
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""" Disable canberra audio output """
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try:
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if self.is_valid():
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self._osk_audio.disable()
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except Exception as ex:
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_logger.warning("Failed to disable audio: " + unicode_str(ex))
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def cache_sample(self, event_id):
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""" Upload sample to the sound server. Blocking call. """
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try:
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if self.is_valid():
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self._osk_audio.cache_sample(event_id)
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except Exception as ex:
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_logger.warning("Failed to cache sample: " + unicode_str(ex))
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