helpers/action.py

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