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Configuration of TTS in browser viewer now works

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Kovid Goyal 2020-12-09 22:02:34 +05:30
parent a5eca3843b
commit fbde6307c3
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 45 additions and 15 deletions
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60
src/pyj/read_book/tts.pyj
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@ -6,7 +6,9 @@ from elementmaker import E
from dom import unique_id
from gettext import gettext as _
from book_list.globals import get_session_data
from modals import create_custom_dialog, error_dialog
from widgets import create_button
def escaper():
@ -24,13 +26,15 @@ escape_for_xml = escaper()
class Client:
def __init__(self):
self.stop_requested_at = None
self.status = {'synthesizing': False, 'paused': False}
self.queue = v'[]'
self.last_reached_mark = None
self.onevent = def():
pass
self.current_voice_name = ''
self.current_rate = None
data = get_session_data().get('tts_backend')
self.current_voice_uri = data.voice or ''
self.current_rate = data.rate or None
def create_utterance(self, text_or_ssml, wrap_in_ssml):
if wrap_in_ssml:
@ -45,9 +49,9 @@ class Client:
ut.onerror = self.utterance_failed
ut.onmark = self.utterance_mark_reached
ut.onresume = self.utterance_resumed
if self.current_voice_name:
if self.current_voice_uri:
for voice in window.speechSynthesis.getVoices():
if voice.name is self.current_voice_name:
if voice.voiceURI is self.current_voice_uri:
ut.voice = voice
break
if self.current_rate:
@ -65,6 +69,9 @@ class Client:
def utterance_ended(self, event):
self.status = {'synthesizing': False, 'paused': False}
if self.stop_requested_at? and window.performance.now() - self.stop_requested_at < 1000:
self.stop_requested_at = None
return
self.queue.splice(0, 1)
if self.queue.length:
window.speechSynthesis.speak(self.queue[0])
@ -92,9 +99,14 @@ class Client:
def resume(self):
window.speechSynthesis.resume()
def resume_after_configure(self):
if self.queue.length:
window.speechSynthesis.speak(self.queue[0])
def stop(self):
window.speechSynthesis.cancel()
self.queue = v'[]'
self.stop_requested_at = window.performance.now()
window.speechSynthesis.cancel()
self.status = {'synthesizing': False, 'paused': False}
def speak_simple_text(self, text):
@ -135,9 +147,14 @@ class Client:
voice_id = unique_id()
rate_id = unique_id()
default_voice = None
def restore_defaults():
document.getElementById(voice_id).selectedIndex = -1
document.getElementById(rate_id).value = 10
create_custom_dialog(_('Configure Text-to-Speech'), def (parent_div, close_modal):
nonlocal default_voice
select = E.select(size='10', id=voice_id)
select = E.select(size='5', id=voice_id)
voices = window.speechSynthesis.getVoices()
voices.sort(def (a, b):
a = a.name.toLowerCase()
@ -147,19 +164,23 @@ class Client:
for voice in voices:
dflt = ''
if voice.default:
default_voice = voice.name
default_voice = voice.voiceURI
dflt = '-- {}'.format(_('default'))
option = E.option(f'{voice.name} ({voice.lang}){dflt}', data_name=voice.name)
if (self.current_voice_name and voice.name is self.current_voice_name) or (not self.current_voice_name and voice.default):
option = E.option(f'{voice.name} ({voice.lang}){dflt}', value=voice.voiceURI)
if (self.current_voice_uri and voice.voiceURI is self.current_voice_uri) or (not self.current_voice_uri and voice.default):
option.setAttribute('selected', 'selected')
select.appendChild(option)
parent_div.appendChild(E.div(_('Speed of speech:')))
parent_div.appendChild(E.input(type='range', id=rate_id, min='1', max='20', value=((self.current_rate or 1) * 10) + ''))
parent_div.appendChild(E.div(_('Pick a voice below:')))
parent_div.appendChild(select)
opt = select.querySelector(':selected')
if opt:
opt.scrollIntoView()
if select.options.selectedIndex?:
select.options[select.options.selectedIndex].scrollIntoView()
parent_div.appendChild(E.div(
style='margin-top: 1rem; display: flex; justify-content: space-between; align-items: flex-start',
create_button(_('Restore defaults'), action=restore_defaults),
create_button(_('Close'), action=close_modal)
))
, on_close=def():
voice = document.getElementById(voice_id).value
@ -168,10 +189,19 @@ class Client:
rate = None
if voice is default_voice:
voice = ''
changed = voice is not self.current_voice_name or rate is not self.current_rate
changed = voice is not self.current_voice_uri or rate is not self.current_rate
if changed:
self.current_voice_name = voice
self.current_voice_uri = voice
self.current_rate = rate
sd = get_session_data()
sd.set('tts_backend', {'voice': voice, 'rate': rate})
existing = self.queue
if self.queue and self.queue.length:
if self.status.paused:
window.speechSynthesis.resume()
self.stop()
for ut in existing:
self.create_utterance(ut.text)
self.view.read_aloud.handle_tts_event('configured', None)
self.onevent('configured')
)