helpers/action.py

   1 import threading
   2 import time
   3
   4 class Action:
   5     action_types = [
   6         'command',
   7         'pause',
   8         'play',
   9         'seek',
  10         'stop',
  11         'stop_all_actions',
  12         'unpause',
  13         'volume',
  14         'wait',
  15     ]
  16
  17     def __init__(self, action, key, **kwargs):
  18         if action in self.action_types:
  19             self.action = action
  20         else:
  21             raise Exception("Unknown action {}".format(action))
  22
  23         self.key = key
  24         self.mapping = key.parent
  25         self.arguments = kwargs
  26         self.sleep_event = None
  27
  28     def ready(self):
  29         if 'music' in self.arguments:
  30             return self.arguments['music'].check_is_loaded()
  31         else:
  32             return True
  33
  34     def run(self):
  35         print(self.description())
  36         getattr(self, self.action)(**self.arguments)
  37
  38     def description(self):
  39         return getattr(self, self.action + "_print")(**self.arguments)
  40
  41     def interrupt(self):
  42         if getattr(self, self.action + "_interrupt", None):
  43             return getattr(self, self.action + "_interrupt")(**self.arguments)
  44
  45     # Actions
  46     def command(self, command = "", **kwargs):
  47         # FIXME: todo
  48         pass
  49
  50     def music_list(self, music):
  51         if music is not None:
  52             return [music]
  53         else:
  54             return self.mapping.open_files.values()
  55
  56     def pause(self, music = None, **kwargs):
  57         for music in self.music_list(music):
  58             if music.is_loaded_playing():
  59                 music.pause()
  60
  61     def unpause(self, music = None, **kwargs):
  62         for music in self.music_list(music):
  63             if music.is_loaded_paused():
  64                 music.unpause()
  65
  66     def play(self, music = None, fade_in = 0, start_at = 0,
  67             restart_if_running = False, volume = 100, **kwargs):
  68         if music is not None:
  69             if restart_if_running:
  70                 if music.is_not_stopped():
  71                     music.stop()
  72                 music.play(volume = volume, fade_in = fade_in, start_at = start_at)
  73             else:
  74                 if not music.is_not_stopped():
  75                     music.play(volume = volume, fade_in = fade_in, start_at = start_at)
  76
  77     def seek(self, music = None, value = 0, delta = False, **kwargs):
  78         for music in self.music_list(music):
  79             music.seek(value = value, delta = delta)
  80
  81     def stop(self, music = None, fade_out = 0, wait = False, **kwargs):
  82         previous = None
  83         for music in self.music_list(music):
  84             if music.is_loaded_paused() or music.is_loaded_playing():
  85                 if previous is not None:
  86                     previous.stop(fade_out = fade_out)
  87                 previous = music
  88
  89         if previous is not None:
  90             previous.stop(fade_out = fade_out, wait = wait)
  91
  92     def stop_all_actions(self, **kwargs):
  93         self.mapping.stop_all_running()
  94
  95     def volume(self, music = None, value = 100, delta = False, **kwargs):
  96         if music is not None:
  97             music.set_volume(value, delta = delta)
  98         else:
  99             self.mapping.set_master_volume(value, delta = delta)
 100
 101     def wait(self, duration = 0, music = None, **kwargs):
 102         self.sleep_event = threading.Event()
 103
 104         if music is not None:
 105             music.wait_end()
 106
 107         threading.Timer(duration, self.sleep_event.set).start()
 108         self.sleep_event.wait()
 109
 110     # Action messages
 111     def command_print(self, command = "", **kwargs):
 112         return "running command {}".format(command)
 113
 114     def pause_print(self, music = None, **kwargs):
 115         if music is not None:
 116             return "pausing « {} »".format(music.name)
 117         else:
 118             return "pausing all musics"
 119
 120     def unpause_print(self, music = None, **kwargs):
 121         if music is not None:
 122             return "unpausing « {} »".format(music.name)
 123         else:
 124             return "unpausing all musics"
 125
 126     def play_print(self, music = None, fade_in = 0, start_at = 0,
 127             restart_if_running = False, volume = 100, **kwargs):
 128         message = "starting "
 129         if music is not None:
 130             message += "« {} »".format(music.name)
 131         else:
 132             message += "music"
 133
 134         if start_at != 0:
 135             message += " at {}s".format(start_at)
 136
 137         if fade_in != 0:
 138             message += " with {}s fade_in".format(fade_in)
 139
 140         message += " at volume {}%".format(volume)
 141
 142         if restart_if_running:
 143             message += " (restarting if already running)"
 144
 145         return message
 146
 147     def stop_print(self, music = None, fade_out = 0, wait = False, **kwargs):
 148         message = "stopping "
 149         if music is not None:
 150             message += "music « {} »".format(music.name)
 151         else:
 152             message += "all musics"
 153
 154         if fade_out > 0:
 155             message += " with {}s fadeout".format(fade_out)
 156             if wait:
 157                 message += " (waiting the end of fadeout)"
 158
 159         return message
 160
 161     def stop_all_actions_print(self, **kwargs):
 162         return "stopping all actions"
 163
 164     def seek_print(self, music = None, value = 0, delta = False, **kwargs):
 165         if delta:
 166             if music is not None:
 167                 return "moving music « {} » by {:+d}s".format(music.name, value)
 168             else:
 169                 return "moving all musics by {:+d}s".format(value)
 170         else:
 171             if music is not None:
 172                 return "moving music « {} » to position {}s".format(music.name, value)
 173             else:
 174                 return "moving all musics to position {}s".format(value)
 175
 176     def volume_print(self, music = None, value = 100, delta = False, **kwargs):
 177         if delta:
 178             if music is not None:
 179                 return "{:+d}% to volume of « {} »".format(value, music.name)
 180             else:
 181                 return "{:+d}% to volume".format(value)
 182         else:
 183             if music is not None:
 184                 return "setting volume of « {} » to {}%".format(music.name, value)
 185             else:
 186                 return "setting volume to {}%".format(value)
 187
 188     def wait_print(self, duration = 0, music = None, **kwargs):
 189         if music is None:
 190             return "waiting {}s".format(duration)
 191         elif duration == 0:
 192             return "waiting the end of « {} »".format(music.name)
 193         else:
 194             return "waiting the end of « {} » + {}s".format(music.name, duration)
 195
 196
 197     # Interruptions
 198     def wait_interrupt(self, duration = 0, music = None, **kwargs):
 199         if self.sleep_event is not None:
 200             self.sleep_event.set()
 201         if music is not None:
 202             music.wait_event.set()
 203