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Move SpeechManager from sugar to sugar-toolkit-gtk3

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This is done to be able to use this implementation of the feature
in the activities. A complementary patch is needed in sugar module.
This commit is contained in:
Gonzalo Odiard 2014-11-09 21:54:34 -03:00 committed by Martin Abente Lahaye
parent 952b8275a1
commit d7c9645b60
2 changed files with 243 additions and 0 deletions
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1
src/sugar3/Makefile.am
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@ -16,6 +16,7 @@ sugar_PYTHON = \
network.py \
power.py \
profile.py \
speech.py \
util.py
nodist_sugar_PYTHON = config.py

242
src/sugar3/speech.py Normal file
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@ -0,0 +1,242 @@
# Copyright (C) 2011 One Laptop Per Child
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import os
import logging
from gi.repository import Gio
from gi.repository import Gst
from gi.repository import Gtk
from gi.repository import Gdk
from gi.repository import GObject
from sugar3 import power
DEFAULT_PITCH = 0
DEFAULT_RATE = 0
_SAVE_TIMEOUT = 500
class SpeechManager(GObject.GObject):
__gtype_name__ = 'SpeechManager'
__gsignals__ = {
'play': (GObject.SignalFlags.RUN_FIRST, None, []),
'pause': (GObject.SignalFlags.RUN_FIRST, None, []),
'stop': (GObject.SignalFlags.RUN_FIRST, None, [])
}
MIN_PITCH = -100
MAX_PITCH = 100
MIN_RATE = -100
MAX_RATE = 100
def __init__(self, **kwargs):
GObject.GObject.__init__(self, **kwargs)
self._player = _GstSpeechPlayer()
self._player.connect('play', self._update_state, 'play')
self._player.connect('stop', self._update_state, 'stop')
self._player.connect('pause', self._update_state, 'pause')
self._voice_name = self._player.get_default_voice()
self._pitch = DEFAULT_PITCH
self._rate = DEFAULT_RATE
self._is_playing = False
self._is_paused = False
self._save_timeout_id = -1
self.restore()
def _update_state(self, player, signal):
self._is_playing = (signal == 'play')
self._is_paused = (signal == 'pause')
self.emit(signal)
def get_is_playing(self):
return self._is_playing
is_playing = GObject.property(type=bool, getter=get_is_playing,
setter=None, default=False)
def get_is_paused(self):
return self._is_paused
is_paused = GObject.property(type=bool, getter=get_is_paused,
setter=None, default=False)
def get_pitch(self):
return self._pitch
def get_rate(self):
return self._rate
def set_pitch(self, pitch):
self._pitch = pitch
if self._save_timeout_id != -1:
GObject.source_remove(self._save_timeout_id)
self._save_timeout_id = GObject.timeout_add(_SAVE_TIMEOUT, self.save)
def set_rate(self, rate):
self._rate = rate
if self._save_timeout_id != -1:
GObject.source_remove(self._save_timeout_id)
self._save_timeout_id = GObject.timeout_add(_SAVE_TIMEOUT, self.save)
def say_text(self, text):
if text:
self._player.speak(self._pitch, self._rate, self._voice_name, text)
def say_selected_text(self):
clipboard = Gtk.Clipboard.get(Gdk.SELECTION_PRIMARY)
clipboard.request_text(self.__primary_selection_cb, None)
def pause(self):
self._player.pause_sound_device()
def restart(self):
self._player.restart_sound_device()
def stop(self):
self._player.stop_sound_device()
def __primary_selection_cb(self, clipboard, text, user_data):
self.say_text(text)
def save(self):
self._save_timeout_id = -1
# DEPRECATED
from gi.repository import GConf
client = GConf.Client.get_default()
client.set_int('/desktop/sugar/speech/pitch', self._pitch)
client.set_int('/desktop/sugar/speech/rate', self._rate)
settings = Gio.Settings('org.sugarlabs.speech')
settings.set_int('pitch', self._pitch)
settings.set_int('rate', self._rate)
logging.debug('saving speech configuration pitch %s rate %s',
self._pitch, self._rate)
return False
def restore(self):
settings = Gio.Settings('org.sugarlabs.speech')
self._pitch = settings.get_int('pitch')
self._rate = settings.get_int('rate')
logging.debug('loading speech configuration pitch %s rate %s',
self._pitch, self._rate)
class _GstSpeechPlayer(GObject.GObject):
__gsignals__ = {
'play': (GObject.SignalFlags.RUN_FIRST, None, []),
'pause': (GObject.SignalFlags.RUN_FIRST, None, []),
'stop': (GObject.SignalFlags.RUN_FIRST, None, [])
}
def __init__(self):
GObject.GObject.__init__(self)
self._pipeline = None
def restart_sound_device(self):
if self._pipeline is None:
logging.debug('Trying to restart not initialized sound device')
return
power.get_power_manager().inhibit_suspend()
self._pipeline.set_state(Gst.State.PLAYING)
self.emit('play')
def pause_sound_device(self):
if self._pipeline is None:
return
self._pipeline.set_state(Gst.State.PAUSED)
power.get_power_manager().restore_suspend()
self.emit('pause')
def stop_sound_device(self):
if self._pipeline is None:
return
self._pipeline.set_state(Gst.State.NULL)
power.get_power_manager().restore_suspend()
self.emit('stop')
def make_pipeline(self, command):
if self._pipeline is not None:
self.stop_sound_device()
del self._pipeline
self._pipeline = Gst.parse_launch(command)
bus = self._pipeline.get_bus()
bus.add_signal_watch()
bus.connect('message', self.__pipe_message_cb)
def __pipe_message_cb(self, bus, message):
if message.type in (Gst.MessageType.EOS, Gst.MessageType.ERROR):
self._pipeline.set_state(Gst.State.NULL)
self._pipeline = None
power.get_power_manager().restore_suspend()
self.emit('stop')
def speak(self, pitch, rate, voice_name, text):
# TODO workaround for http://bugs.sugarlabs.org/ticket/1801
if not [i for i in text if i.isalnum()]:
return
self.make_pipeline('espeak name=espeak ! autoaudiosink')
src = self._pipeline.get_by_name('espeak')
src.props.text = text
src.props.pitch = pitch
src.props.rate = rate
src.props.voice = voice_name
src.props.track = 2 # track for marks
self.restart_sound_device()
def get_all_voices(self):
all_voices = {}
for voice in Gst.ElementFactory.make('espeak', None).props.voices:
name, language, dialect = voice
if dialect != 'none':
all_voices[language + '_' + dialect] = name
else:
all_voices[language] = name
return all_voices
def get_default_voice(self):
"""Try to figure out the default voice, from the current locale ($LANG)
Fall back to espeak's voice called Default."""
voices = self.get_all_voices()
locale = os.environ.get('LANG', '')
language_location = locale.split('.', 1)[0].lower()
language = language_location.split('_')[0]
# if the language is es but not es_es default to es_la (latin voice)
if language == 'es' and language_location != 'es_es':
language_location = 'es_la'
best = voices.get(language_location) or voices.get(language) \
or 'default'
logging.debug('Best voice for LANG %s seems to be %s',
locale, best)
return best