加上 google-tts，以支持粤语发音

client/tts.py

@@ -29,6 +29,11 @@
 import diagnose
 import dingdangpath
 
+try:
+    import gtts
+except ImportError:
+    pass
+
 import sys
 reload(sys)
 sys.setdefaultencoding('utf8')
@@ -685,6 +690,62 @@ def say(self, phrase):
             os.remove(tmpfile)
 
 
+class GoogleTTS(AbstractMp3TTSEngine):
+    """
+    Uses the Google TTS online translator
+    Requires pymad and gTTS to be available
+    """
+
+    SLUG = "google-tts"
+
+    def __init__(self, language='en'):
+        super(self.__class__, self).__init__()
+        self.language = language
+
+    @classmethod
+    def is_available(cls):
+        return (super(cls, cls).is_available() and
+                diagnose.check_python_import('gtts') and
+                diagnose.check_network_connection())
+
+    @classmethod
+    def get_config(cls):
+        # FIXME: Replace this as soon as we have a config module
+        config = {}
+        # HMM dir
+        # Try to get hmm_dir from config
+        profile_path = dingdangpath.config('profile.yml')
+        if os.path.exists(profile_path):
+            with open(profile_path, 'r') as f:
+                profile = yaml.safe_load(f)
+                if ('google-tts' in profile and
+                   'language' in profile['google-tts']):
+                    config['language'] = profile['google-tts']['language']
+
+        return config
+
+    @property
+    def languages(self):
+        langs = ['af', 'sq', 'ar', 'hy', 'ca', 'zh-CN', 'zh-TW', 'hr', 'cs',
+                 'da', 'nl', 'en', 'eo', 'fi', 'fr', 'de', 'el', 'ht', 'hi',
+                 'hu', 'is', 'id', 'it', 'ja', 'ko', 'la', 'lv', 'mk', 'no',
+                 'pl', 'pt', 'ro', 'ru', 'sr', 'sk', 'es', 'sw', 'sv', 'ta',
+                 'th', 'tr', 'vi', 'cy']
+        return langs
+
+    def say(self, phrase):
+        self._logger.debug("Saying '%s' with '%s'", phrase, self.SLUG)
+        if self.language not in self.languages:
+            raise ValueError("Language '%s' not supported by '%s'",
+                             self.language, self.SLUG)
+        tts = gtts.gTTS(text=phrase, lang=self.language)
+        with tempfile.NamedTemporaryFile(suffix='.mp3', delete=False) as f:
+            tmpfile = f.name
+        tts.save(tmpfile)
+        self.play_mp3(tmpfile)
+        os.remove(tmpfile)
+
+
 def get_default_engine_slug():
     return 'osx-tts' if platform.system().lower() == 'darwin' else 'espeak-tts'