class Client:
mark_template = '[[sync 0x{:x}]]'
END_MARK = 0xffffffff
name = 'nsss'
min_rate = 10
max_rate = 340
chunk_size = 0
@classmethod
def escape_marked_text(cls, text):
return text.replace('[[', ' [ [ ').replace(']]', ' ] ] ')
def __init__(self, settings=None, dispatch_on_main_thread=lambda f: f()):
from calibre_extensions.cocoa import NSSpeechSynthesizer
self.nsss = NSSpeechSynthesizer(self.handle_message)
self.default_system_rate = self.nsss.get_current_rate()
self.default_system_voice = self.nsss.get_current_voice()
self.current_callback = None
self.current_marked_text = self.last_mark = None
self.dispatch_on_main_thread = dispatch_on_main_thread
self.status = {'synthesizing': False, 'paused': False}
self.settings = settings or {}
self.ignore_next_stop_event = False
self.apply_settings()
def apply_settings(self, new_settings=None):
if self.status['paused']:
self.nsss.resume()
self.ignore_next_stop_event = True
self.status = {'synthesizing': False, 'paused': False}
if new_settings is not None:
self.settings = new_settings
self.nsss.set_current_voice(self.settings.get('voice') or self.default_system_voice)
rate = self.settings.get('rate', self.default_system_rate)
self.nsss.set_current_rate(rate)
def __del__(self):
self.nsss = None
shutdown = __del__
def handle_message(self, message_type, data):
from calibre_extensions.cocoa import MARK, END
event = None
if message_type == MARK:
self.last_mark = data
event = Event(EventType.mark, data)
elif message_type == END:
if self.ignore_next_stop_event:
self.ignore_next_stop_event = False
return
event = Event(EventType.end if data else EventType.cancel)
self.status = {'synthesizing': False, 'paused': False}
if event is not None and self.current_callback is not None:
try:
self.current_callback(event)
except Exception:
import traceback
traceback.print_exc()
def speak_simple_text(self, text):
self.current_callback = None
self.current_marked_text = self.last_mark = None
self.nsss.speak(self.escape_marked_text(text))
self.status = {'synthesizing': True, 'paused': False}
def speak_marked_text(self, marked_text, callback):
text = ''.join(add_markup(marked_text, self.mark_template, self.escape_marked_text, self.chunk_size))
self.current_callback = callback
self.current_marked_text = text
self.last_mark = None
self.nsss.speak(text)
self.status = {'synthesizing': True, 'paused': False}
self.current_callback(Event(EventType.begin))
def pause(self):
if self.status['synthesizing']:
self.nsss.pause()
self.status = {'synthesizing': True, 'paused': True}
if self.current_callback is not None:
self.current_callback(Event(EventType.pause))
def resume(self):
if self.status['paused']:
self.nsss.resume()
self.status = {'synthesizing': True, 'paused': False}
if self.current_callback is not None:
self.current_callback(Event(EventType.resume))
def resume_after_configure(self):
if self.status['paused']:
self.resume()
return
if self.last_mark is None:
idx = -1
else:
mark = self.mark_template.format(self.last_mark)
idx = self.current_marked_text.find(mark)
if idx == -1:
text = self.current_marked_text
else:
text = self.current_marked_text[idx:]
self.nsss.speak(text)
self.status = {'synthesizing': True, 'paused': False}
if self.current_callback is not None:
self.current_callback(Event(EventType.resume))
def stop(self):
self.nsss.stop()
@property
def rate(self):
return self.nss.get_current_rate()
@rate.setter
def rate(self, val):
val = val or self.default_system_rate
self.nss.set_current_rate(float(val))
def get_voice_data(self):
ans = getattr(self, 'voice_data', None)
if ans is None:
ans = self.voice_data = self.nsss.get_all_voices()
return ans
def config_widget(self, backend_settings, parent):
from calibre.gui2.tts.macos_config import Widget
return Widget(self, backend_settings, parent)
def change_rate(self, steps=1):
rate = current_rate = self.settings.get('rate', self.default_system_rate)
step_size = (self.max_rate - self.min_rate) // 10
rate += steps * step_size
rate = max(self.min_rate, min(rate, self.max_rate))
if rate != current_rate:
self.settings['rate'] = rate
prev_state = self.status.copy()
self.pause()
self.apply_settings()
if prev_state['synthesizing']:
self.status = {'synthesizing': True, 'paused': False}
self.resume_after_configure()
return self.settings
class Client:
mark_template = '[[sync 0x{:x}]]'
END_MARK = 0xffffffff
name = 'nsss'
@classmethod
def escape_marked_text(cls, text):
return text.replace('[[', ' [ [ ').replace(']]', ' ] ] ')
def __init__(self, settings=None, dispatch_on_main_thread=lambda f: f()):
from calibre_extensions.cocoa import NSSpeechSynthesizer
self.nsss = NSSpeechSynthesizer(self.handle_message)
self.default_system_rate = self.nsss.get_current_rate()
self.default_system_voice = self.nsss.get_current_voice()
self.current_callback = None
self.current_marked_text = self.last_mark = None
self.dispatch_on_main_thread = dispatch_on_main_thread
self.status = {'synthesizing': False, 'paused': False}
self.apply_settings(settings)
def apply_settings(self, new_settings=None):
settings = new_settings or {}
self.nsss.set_current_rate(
settings.get('rate', self.default_system_rate))
self.nsss.set_current_voice(
settings.get('voice') or self.default_system_voice)
def __del__(self):
self.nsss = None
shutdown = __del__
def handle_message(self, message_type, data):
from calibre_extensions.cocoa import MARK, END
event = None
if message_type == MARK:
self.last_mark = data
if data == self.END_MARK:
event = Event(EventType.end)
self.status = {'synthesizing': False, 'paused': False}
else:
event = Event(EventType.mark, data)
elif message_type == END:
if not data: # normal end event is handled by END_MARK
event = Event(EventType.cancel)
self.status = {'synthesizing': False, 'paused': False}
if event is not None and self.current_callback is not None:
try:
self.current_callback(event)
except Exception:
import traceback
traceback.print_exc()
def speak_simple_text(self, text):
self.current_callback = None
self.current_marked_text = self.last_mark = None
self.nsss.speak(self.escape_marked_text(text))
self.status = {'synthesizing': True, 'paused': False}
def speak_marked_text(self, text, callback):
self.current_callback = callback
# on macOS didFinishSpeaking is never called for some reason, so work
# around it by adding an extra, special mark at the end
text += self.mark_template.format(self.END_MARK)
self.current_marked_text = text
self.last_mark = None
self.nsss.speak(text)
self.status = {'synthesizing': True, 'paused': False}
self.current_callback(Event(EventType.begin))
def pause(self):
if self.status['synthesizing']:
self.nsss.pause()
self.status = {'synthesizing': True, 'paused': True}
if self.current_callback is not None:
self.current_callback(Event(EventType.pause))
def resume(self):
if self.status['paused']:
self.nsss.resume()
self.status = {'synthesizing': True, 'paused': False}
if self.current_callback is not None:
self.current_callback(Event(EventType.resume))
def resume_after_configure(self):
if self.status[
'paused'] and self.last_mark is not None and self.current_marked_text:
mark = self.mark_template.format(self.last_mark)
idx = self.current_marked_text.find(mark)
if idx == -1:
text = self.current_marked_text
else:
text = self.current_marked_text[idx:]
self.nsss.speak(text)
self.status = {'synthesizing': True, 'paused': False}
if self.current_callback is not None:
self.current_callback(Event(EventType.resume))
def stop(self):
self.nsss.stop()
@property
def rate(self):
return self.nss.get_current_rate()
@rate.setter
def rate(self, val):
val = val or self.default_system_rate
self.nss.set_current_rate(float(val))
def get_voice_data(self):
ans = getattr(self, 'voice_data', None)
if ans is None:
ans = self.voice_data = self.nsss.get_all_voices()
return ans
def config_widget(self, backend_settings, parent):
from calibre.gui2.tts.macos_config import Widget
return Widget(self, backend_settings, parent)