class GapShow(Show): """ this is the parent class of mediashow and liveshow The two derived clases just select the appropriate medialist from pp_medialist and pp_livelist the parents control the monitoring """ # ******************* # External interface # ******************** def __init__(self, show_id, show_params, root, canvas, showlist, pp_dir, pp_home, pp_profile, command_callback): # init the common bits Show.base__init__(self, show_id, show_params, root, canvas, showlist, pp_dir, pp_home, pp_profile, command_callback) # instatiatate the screen driver - used only to access enable and hide click areas self.sr=ScreenDriver() self.controlsmanager=ControlsManager() # Init variables special to this show self.poll_for_interval_timer=None self.interval_timer_signal=False self.waiting_for_interval=False self.interval_timer=None self.duration_timer=None self.end_trigger_signal=False self.next_track_signal=False self.previous_track_signal=False self.play_child_signal = False self.error_signal=False self.show_timeout_signal=False self.req_next='nil' self.state='closed' self.count=0 self.interval=0 self.duration=0 self.controls_list=[] self.enable_hint= True self.escapetrack_required=False def play(self,end_callback,show_ready_callback, parent_kickback_signal,level,controls_list): self.mon.newline(3) self.mon.trace(self, self.show_params['show-ref']) Show.base_play(self,end_callback,show_ready_callback,parent_kickback_signal, level,controls_list) # unpack show parameters reason,message,self.show_timeout = Show.calculate_duration(self,self.show_params['show-timeout']) if reason=='error': self.mon.err(self,'ShowTimeout has bad time: '+self.show_params['show-timeout']) self.end('error','ShowTimeout has bad time: '+self.show_params['show-timeout']) self.track_count_limit = int(self.show_params['track-count-limit']) reason,message,self.interval = Show.calculate_duration (self, self.show_params['interval']) if reason=='error': self.mon.err(self,'Interval has bad time: '+self.show_params['interval']) self.end('error','Interval has bad time: '+self.show_params['interval']) if self.medialist.anon_length()==0 and self.show_params['type'] not in ('liveshow','artliveshow'): self.mon.err(self,'No anonymous tracks in medialist ') self.end('error','No anonymous tracks in medialist ') # delete eggtimer started by the parent if self.previous_shower is not None: self.previous_shower.delete_eggtimer() self.start_show() # ******************************** # Respond to external events # ******************************** # exit received from another concurrent show def exit(self): Show.base_exit(self) # terminate Pi Presents def terminate(self): Show.base_terminate(self) # respond to input events def handle_input_event(self,symbol): Show.base_handle_input_event(self,symbol) def handle_input_event_this_show(self,symbol): # check symbol against mediashow triggers if self.state == 'waiting' and self.show_params['trigger-start-type'] in ('input','input-persist') and symbol == self.show_params['trigger-start-param']: self.mon.stats(self.show_params['type'],self.show_params['show-ref'],self.show_params['title'],'start trigger', '','','') Show.delete_admin_message(self) self.start_list() elif self.state == 'playing' and self.show_params['trigger-end-type'] == 'input' and symbol == self.show_params['trigger-end-param']: self.end_trigger_signal=True if self.shower is not None: self.shower.do_operation('stop') elif self.current_player is not None: self.current_player.input_pressed('stop') elif self.state == 'playing' and self.show_params['trigger-next-type'] == 'input' and symbol == self.show_params['trigger-next-param']: self.mon.stats(self.show_params['type'],self.show_params['show-ref'],self.show_params['title'],'next trigger', '','','') self.next() else: # event is not a trigger so must be internal operation operation=self.base_lookup_control(symbol,self.controls_list) if operation != '': self.do_operation(operation) # overrides base # service the standard operations for this show def do_operation(self,operation): # print 'do_operation ',operation self.mon.trace(self, operation) if operation == 'exit': self.exit() elif operation == 'stop': if self.level != 0 : # not at top so stop the show self.user_stop_signal=True # and stop the track first if self.current_player is not None: self.current_player.input_pressed('stop') else: # at top, just stop track if running if self.current_player is not None: self.current_player.input_pressed('stop') elif operation == 'up' and self.state == 'playing': # print '\nUP' self.previous() elif operation == 'down' and self.state == 'playing': self.next() elif operation == 'play': # use 'play' to start child if state=playing or to trigger the show if waiting for trigger if self.state == 'playing': if self.show_params['child-track-ref'] != '': # set a signal because must stop current track before running child show self.play_child_signal=True self.child_track_ref=self.show_params['child-track-ref'] # and stop the current track if its running if self.current_player is not None: self.current_player.input_pressed('stop') else: if self.state == 'waiting': self.mon.stats(self.show_params['type'],self.show_params['show-ref'],self.show_params['title'],'start trigger', '','','') Show.delete_admin_message(self) self.start_list() elif operation in ('pause','pause-on','pause-off','mute','unmute','go'): if self.current_player is not None: self.current_player.input_pressed(operation) elif operation in ('no-command','null'): return # if the operation is omxplayer mplayer or uzbl runtime control then pass it to player if running elif operation[0:4] == 'omx-' or operation[0:6] == 'mplay-'or operation[0:5] == 'uzbl-': if self.current_player is not None: self.current_player.input_pressed(operation) def next(self): # stop track if running and set signal self.next_track_signal=True if self.shower is not None: self.shower.do_operation('stop') else: if self.current_player is not None: self.current_player.input_pressed('stop') def previous(self): self.previous_track_signal=True if self.shower is not None: self.shower.do_operation('stop') else: if self.current_player is not None: self.current_player.input_pressed('stop') # *************************** # Show sequencing # *************************** def start_show(self): # initial direction from parent show self.kickback_for_next_track=self.parent_kickback_signal # print '\n\ninital KICKBACK from parent', self.kickback_for_next_track # start duration timer if self.show_timeout != 0: # print 'set alarm ', self.show_timeout self.duration_timer = self.canvas.after(self.show_timeout*1000,self.show_timeout_stop) self.first_list=True # and start the first list of the show self.wait_for_trigger() def wait_for_trigger(self): # wait for trigger sets the state to waiting so that trigger events can do a start_list. self.state='waiting' self.mon.log(self,self.show_params['show-ref']+ ' '+ str(self.show_id)+ ": Waiting for trigger: "+ self.show_params['trigger-start-type']) if self.show_params['trigger-start-type'] == "input": #close the previous track to display admin message Show.base_shuffle(self) Show.base_track_ready_callback(self,False) Show.display_admin_message(self,self.show_params['trigger-wait-text']) elif self.show_params['trigger-start-type'] == "input-persist": if self.first_list ==True: #first time through track list so play the track without waiting to get to end. self.start_list() else: #wait for trigger while displaying previous track pass elif self.show_params['trigger-start-type'] == "start": # don't close the previous track to give seamless repeat of the show self.start_list() else: self.mon.err(self,"Unknown trigger: "+ self.show_params['trigger-start-type']) self.end('error',"Unknown trigger: "+ self.show_params['trigger-start-type']) # timer for repeat=interval def end_interval_timer(self): self.interval_timer_signal=True # print 'INTERVAL TIMER ended' if self.shower is not None: self.shower.do_operation('stop') elif self.current_player is not None: self.current_player.input_pressed('stop') # show timeout happened def show_timeout_stop(self): self.stop_timers() Show.base_show_timeout_stop(self) def start_list(self): # starts the list or any repeat having waited for trigger first. self.state='playing' # initialise track counter for the list self.track_count=0 # start interval timer self.interval_timer_signal = False if self.interval != 0: self.interval_timer=self.canvas.after(self.interval*1000,self.end_interval_timer) # print '\nSTART LIST', self.first_list if self.first_list is True: # first list so go to what next self.what_next_after_showing() else: #get first or last track depending on direction if self.kickback_for_next_track is True: self.medialist.finish() else: self.medialist.start() self.start_load_show_loop(self.medialist.selected_track()) # *************************** # Track load/show loop # *************************** # track playing loop starts here def start_load_show_loop(self,selected_track): # uncomment the next line to write stats for every track # Show.write_stats(self,'play a track',self.show_params,selected_track) # shuffle players Show.base_shuffle(self) self.delete_eggtimer() # is child track required if self.show_params['child-track-ref'] != '': self.enable_child=True else: self.enable_child=False # load the track or show # params - track,enable_menu enable=self.enable_child & self.enable_hint Show.base_load_track_or_show(self,selected_track,self.what_next_after_load,self.end_shower,enable) # track has loaded so show it. def what_next_after_load(self,status,message): self.mon.log(self,'Show Id ' + str(self.show_id)+' load complete with status: ' + status +' message: ' +message) if self.current_player.play_state == 'load-failed': self.error_signal=True self.what_next_after_showing() else: if self.terminate_signal is True or self.exit_signal is True or self.user_stop_signal is True: self.what_next_after_showing() else: self.mon.trace(self, ' - showing track') self.current_player.show(self.track_ready_callback,self.finished_showing,self.closed_after_showing) def finished_showing(self,reason,message): self.sr.hide_click_areas(self.controls_list) if self.current_player.play_state == 'show-failed': self.error_signal=True else: self.req_next='finished-player' # showing has finished with 'pause at end', showing the next track will close it after next has started showing self.mon.trace(self, ' - pause at end ') self.mon.log(self,"pause at end of showing track with reason: "+reason+ ' and message: '+ message) self.what_next_after_showing() def closed_after_showing(self,reason,message): self.sr.hide_click_areas(self.controls_list) if self.current_player.play_state == 'show-failed': self.error_signal=True else: self.req_next='closed-player' # showing has finished with closing of player but track instance is alive for hiding the x_content self.mon.trace(self,' - closed') self.mon.log(self,"Closed after showing track with reason: "+reason+ ' and message: '+ message) self.what_next_after_showing() # subshow or child show has ended def end_shower(self,show_id,reason,message): self.mon.log(self,self.show_params['show-ref']+ ' '+ str(self.show_id)+ ': Returned from shower with ' + reason +' ' + message) self.sr.hide_click_areas(self.controls_list) self.req_next=reason Show.base_end_shower(self) self.what_next_after_showing() def pretty_what_next_after_showing_state(self): state = '\n* terminate signal ' + str(self.terminate_signal) state += '\n* error signal ' + str(self.error_signal) state += '\n* req_next used to indicate subshow reports an error ' + self.req_next state += '\n* exit signal ' + str(self.exit_signal) state += '\n* show timeout signal ' + str(self.show_timeout_signal) state += '\n* user stop signal ' + str(self.user_stop_signal) state += '\n* previous track signal ' + str(self.previous_track_signal) state += '\n* next track signal ' + str(self.next_track_signal) state += '\n* kickback from subshow ' + str(self.subshow_kickback_signal) return state +'\n' def what_next_after_showing(self): # print 'WHAT NEXT' self.mon.trace(self,self.pretty_what_next_after_showing_state()) self.track_count+=1 # set false when child rack is to be played self.enable_hint=True # first of all deal with conditions that do not require the next track to be shown # some of the conditions can happen at any time, others only when a track is closed or at pause_at_end # need to terminate if self.terminate_signal is True: self.terminate_signal=False self.stop_timers() # set what to do after closed or unloaded self.ending_reason='killed' Show.base_close_or_unload(self) elif self.error_signal== True or self.req_next=='error': self.error_signal=False self.req_next='' self.stop_timers() # set what to do after closed or unloaded self.ending_reason='error' Show.base_close_or_unload(self) # used for exiting show from other shows, time of day, external etc. elif self.exit_signal is True: self.exit_signal=False self.stop_timers() self.ending_reason='exit' Show.base_close_or_unload(self) # show timeout elif self.show_timeout_signal is True: self.show_timeout_signal=False self.stop_timers() self.ending_reason='user-stop' Show.base_close_or_unload(self) # user wants to stop the show elif self.user_stop_signal is True: self.user_stop_signal=False # print 'user stop' self.stop_timers() self.ending_reason='user-stop' Show.base_close_or_unload(self) # interval > 0. If last track has finished we are waiting for interval timer before ending the list # note: if medialist finishes after interval is up then this route is used to start trigger. elif self.waiting_for_interval is True: # interval_timer_signal set by alarm clock started in start_list if self.interval_timer_signal is True: self.interval_timer_signal=False self.waiting_for_interval=False # print 'RECEIVED INTERVAL TIMER SIGNAL' if self.show_params['repeat']=='repeat': self.wait_for_trigger() else: self.stop_timers() self.ending_reason='user-stop' Show.base_close_or_unload(self) else: self.poll_for_interval_timer=self.canvas.after(1000,self.what_next_after_showing) else: self.medialist.create_new_livelist() escapetrack_required=self.escapetrack_required self.escapetrack_required=False # print escapetrack_required,self.medialist.new_length() if escapetrack_required is True and self.medialist.new_length() == 0: # print 'use escape track' index = self.medialist.index_of_track(self.show_params['escape-track-ref']) self.mon.log(self,'Starting Escape Track: '+ self.show_params['escape-track-ref']) if index >=0: # don't use select the track as need to preserve mediashow sequence for returning from esacpe track escape_track=self.medialist.track(index) Show.write_stats(self,'play escape track',self.show_params,escape_track) self.display_eggtimer() # use new empty livelist so if changed works OK when return from empty track self.medialist.use_new_livelist() self.start_load_show_loop(escape_track) else: self.mon.err(self,"Escape Track empty") self.end('error',"Escape Track empty") # print 'FOR IF CHANGED',self.first_list,self.medialist.length(),self.medialist.new_length(),self.medialist.livelist_changed() elif self.first_list is True or self.medialist.livelist_changed() is True or (self.medialist.length() == 0 and self.medialist.new_length() == 0): if self.first_list is False: # do show control if self.medialist.length() == 0 and self.medialist.new_length() != 0: # print 'show control empty to not empty' # do show control when goes from not empty to empty only self.show_control(self.show_params['show-control-not-empty']) elif self.medialist.length() != 0 and self.medialist.new_length() == 0: # print 'show control not empty to empty' # do show control when goes from empty to not empty only self.show_control(self.show_params['show-control-empty']) self.first_list=False if self.medialist.new_length()==0 and self.show_params['repeat']=='repeat': # start empty track/show index = self.medialist.index_of_track(self.show_params['empty-track-ref']) self.mon.log(self,'Starting Empty Track: '+ self.show_params['empty-track-ref']) if index >=0: # don't use select the track as need to preserve mediashow sequence for returning from empty track/show empty_track=self.medialist.track(index) # print 'play empty track', empty_track['title'],empty_track['type'] Show.write_stats(self,'play empty track',self.show_params,empty_track) if empty_track['type'] =='show': self.escapetrack_required=True self.display_eggtimer() # use new empty livelist so if changed works OK when return from empty track self.medialist.use_new_livelist() self.start_load_show_loop(empty_track) else: self.mon.err(self,"List Empty Track not specified") self.end('error',"List Empty Track not specified") elif self.medialist.new_length()==0 and self.show_params['repeat']=='single-run': if self.level != 0: self.kickback_for_next_track=False self.subshow_kickback_signal=False self.end('normal',"End of single run - Return from Sub Show") else: # end of single run and at top - exit the show self.stop_timers() self.ending_reason='user-stop' Show.base_close_or_unload(self) else: #changed but new is not zero self.medialist.use_new_livelist() # print 'livelist changed and not empty' self.start_list() # otherwise consider operation that might show the next track else: # print 'ELSE',self.medialist.at_end() # report error if medilaist is empty (liveshow will not get this far if self.medialist.length()==0: self.mon.err(self,"Medialist empty") self.end('error',"Medialist empty") # setup default direction for next track as normally goes forward unless kicked back self.kickback_for_next_track=False # print 'init direction to False at begin of what_next_after showing', self.kickback_for_next_track # end trigger from input, or track count if self.end_trigger_signal is True or (self.track_count_limit >0 and self.track_count == self.track_count_limit): self.end_trigger_signal=False # repeat so test start trigger if self.show_params['repeat'] == 'repeat': self.stop_timers() # print 'END TRIGGER restart' self.wait_for_trigger() else: # single run so exit show if self.level != 0: self.kickback_for_next_track=False self.subshow_kickback_signal=False # print 'single run exit subshow' self.end('normal',"End of single run - Return from Sub Show") else: # end of single run and at top - exit the show self.stop_timers() # print 'ENDING' self.ending_reason='user-stop' Show.base_close_or_unload(self) # user wants to play child elif self.play_child_signal is True: self.play_child_signal=False index = self.medialist.index_of_track(self.child_track_ref) if index >=0: # don't use select the track as need to preserve mediashow sequence for returning from child child_track=self.medialist.track(index) Show.write_stats(self,'play child',self.show_params,child_track) self.display_eggtimer() self.enable_hint=False self.start_load_show_loop(child_track) else: self.mon.err(self,"Child not found in medialist: "+ self.child_track_ref) self.ending_reason='error' Show.base_close_or_unload(self) # skip to next track on user input or after subshow elif self.next_track_signal is True: # print 'skip forward test' ,self.subshow_kickback_signal if self.next_track_signal is True or self.subshow_kickback_signal is False: self.next_track_signal=False self.kickback_for_next_track=False if self.medialist.at_end() is True: # medialist_at_end can give false positive for shuffle if self.show_params['sequence'] == "ordered" and self.show_params['repeat'] == 'repeat': self.wait_for_trigger() elif self.show_params['sequence'] == "ordered" and self.show_params['repeat'] == 'single-run': if self.level != 0: self.kickback_for_next_track=False self.subshow_kickback_signal=False # print 'end subshow skip forward test, self. direction is ' ,self.kickback_for_next_track self.end('normal',"Return from Sub Show") else: # end of single run and at top - exit the show self.stop_timers() self.ending_reason='user-stop' Show.base_close_or_unload(self) else: # shuffling - just do next track self.kickback_for_next_track=False self.medialist.next(self.show_params['sequence']) self.start_load_show_loop(self.medialist.selected_track()) else: # not at end just do next track self.medialist.next(self.show_params['sequence']) self.start_load_show_loop(self.medialist.selected_track()) # skip to previous track on user input or after subshow elif self.previous_track_signal is True or self.subshow_kickback_signal is True: # print 'skip backward test, subshow kickback is' ,self.subshow_kickback_signal self.subshow_kickback_signal=False self.previous_track_signal=False self.kickback_for_next_track=True # medialist_at_start can give false positive for shuffle if self.medialist.at_start() is True: # print 'AT START' if self.show_params['sequence'] == "ordered" and self.show_params['repeat'] == 'repeat': self.kickback_for_next_track=True self.wait_for_trigger() elif self.show_params['sequence'] == "ordered" and self.show_params['repeat'] == 'single-run': if self.level != 0: self.kickback_for_next_track=True self.subshow_kickback_signal=True # print 'end subshow skip forward test, self. direction is ' ,self.kickback_for_next_track self.end('normal',"Return from Sub Show") else: # end of single run and at top - exit the show self.stop_timers() self.ending_reason='user-stop' Show.base_close_or_unload(self) else: # shuffling - just do previous track self.kickback_for_next_track=True self.medialist.previous(self.show_params['sequence']) self.start_load_show_loop(self.medialist.selected_track()) else: # not at end just do next track self.medialist.previous(self.show_params['sequence']) self.start_load_show_loop(self.medialist.selected_track()) # AT END OF MEDIALIST elif self.medialist.at_end() is True: # print 'MEDIALIST AT END' # interval>0 and list finished so wait for the interval timer if self.show_params['sequence'] == "ordered" and self.interval > 0 and self.interval_timer_signal==False: self.waiting_for_interval=True # print 'WAITING FOR INTERVAL' Show.base_shuffle(self) Show.base_track_ready_callback(self,False) self.poll_for_interval_timer=self.canvas.after(200,self.what_next_after_showing) # interval=0 #elif self.show_params['sequence'] == "ordered" and self.show_params['repeat'] == 'repeat' and self.show_params['trigger-end-type']== 'interval' and int(self.show_params['trigger-end-param']) == 0: #self.medialist.next(self.show_params['sequence']) # self.start_load_show_loop(self.medialist.selected_track()) # shuffling so there is no end condition, get out of end test elif self.show_params['sequence'] == "shuffle": self.medialist.next(self.show_params['sequence']) self.start_load_show_loop(self.medialist.selected_track()) # nothing special to do at end of list, just repeat or exit elif self.show_params['sequence'] == "ordered": if self.show_params['repeat'] == 'repeat': # print 'repeating at end of list' self.wait_for_trigger() else: # single run # if not at top return to parent if self.level !=0: self.end('normal',"End of Single Run") else: # at top so close the show # print 'closing show' self.stop_timers() self.ending_reason='user-stop' Show.base_close_or_unload(self) else: self.mon.err(self,"Unhandled playing event at end of list: "+self.show_params['sequence'] +' with ' + self.show_params['repeat']+" of "+ self.show_params['trigger-end-param']) self.end('error',"Unhandled playing event at end of list: "+self.show_params['sequence'] +' with ' + self.show_params['repeat']+" of "+ self.show_params['trigger-end-param']) elif self.medialist.at_end() is False: # nothing special just do the next track # print 'nothing special' self.medialist.next(self.show_params['sequence']) self.start_load_show_loop(self.medialist.selected_track()) else: # unhandled state self.mon.err(self,"Unhandled playing event: "+self.show_params['sequence'] +' with ' + self.show_params['repeat']+" of "+ self.show_params['trigger-end-param']) self.end('error',"Unhandled playing event: "+self.show_params['sequence'] +' with ' + self.show_params['repeat']+" of "+ self.show_params['trigger-end-param']) # ********************* # Interface with other shows/players to reduce black gaps # ********************* # called just before a track is shown to remove the previous track from the screen # and if necessary close it def track_ready_callback(self,enable_show_background): self.delete_eggtimer() # get control bindings for this show # needs to be done for each track as track can override the show controls if self.show_params['disable-controls'] == 'yes': self.controls_list=[] else: reason,message,self.controls_list= self.controlsmanager.get_controls(self.show_params['controls']) if reason=='error': self.mon.err(self,message) self.end('error',"error in controls: " + message) return # print 'controls',reason,self.show_params['controls'],self.controls_list #merge controls from the track controls_text=self.current_player.get_links() reason,message,track_controls=self.controlsmanager.parse_controls(controls_text) if reason == 'error': self.mon.err(self,message + " in track: "+ self.current_player.track_params['track-ref']) self.error_signal=True self.what_next_after_showing() self.controlsmanager.merge_controls(self.controls_list,track_controls) # enable the click-area that are in the list of controls self.sr.enable_click_areas(self.controls_list) Show.base_track_ready_callback(self,enable_show_background) # callback from begining of a subshow, provide previous player to called show def subshow_ready_callback(self): return Show.base_subshow_ready_callback(self) # ********************* # End the show # ********************* def end(self,reason,message): Show.base_end(self,reason,message) def stop_timers(self): # clear outstanding time of day events for this show # self.tod.clear_times_list(id(self)) if self.poll_for_interval_timer is not None: self.canvas.after_cancel(self.poll_for_interval_timer) self.poll_for_interval_timer=None if self.interval_timer is not None: self.canvas.after_cancel(self.interval_timer) self.interval_timer=None if self.duration_timer is not None: self.canvas.after_cancel(self.duration_timer) self.duration_timer=None
class ArtShow(Show): """ Automatically plays a set of tracks from a medialist. Does gapless and time of day trigger but little else. """ # ******************* # External interface # ******************** def __init__(self, show_id, show_params, root, canvas, showlist, pp_dir, pp_home, pp_profile, command_callback): # init the common bits Show.base__init__(self, show_id, show_params, root, canvas, showlist, pp_dir, pp_home, pp_profile, command_callback) # delay in mS before next track is loaded after showing a track. # can be inceeased if animation is required self.load_delay = 5 # Init variables for this show self.end_medialist_signal = False self.end_medialist_warning = False self.next_track_signal = False self.state = 'closed' self.req_next = '' self.next_player = None def play(self, end_callback, show_ready_callback, parent_kickback_signal, level, controls_list): self.mon.trace(self, self.show_params['show-ref']) Show.base_play(self, end_callback, show_ready_callback, parent_kickback_signal, level, controls_list) # get the previous shower and player from calling show # Show.base_get_previous_player_from_parent(self) # and delete eggtimer started by the parent if self.previous_shower is not None: self.previous_shower.delete_eggtimer() self.wait_for_trigger() # ******************************** # Respond to external events # ******************************** def exit(self): # set signal to stop the show when all sub-shows and players have ended self.exit_signal = True # then stop track. if self.current_player is not None: self.current_player.input_pressed('stop') else: self.end('normal', 'ended by exit') # kill or error def terminate(self): self.terminate_signal = True if self.current_player is not None: self.ending_reason = 'killed' self.close_current_and_next() else: self.end('killed', ' terminated with no shower or player to terminate') # respond to key presses. def handle_input_event(self, symbol): Show.base_handle_input_event(self, symbol) def handle_input_event_this_show(self, symbol): operation = self.base_lookup_control(symbol, self.controls_list) self.do_operation(operation) def do_trigger_or_link(self, symbol, edge, source): pass # service the standard operations for this show def do_operation(self, operation): self.mon.trace(self, operation) # service the standard inputs for this show if operation == 'exit': self.exit() elif operation == 'stop': if self.level != 0: # not at top so stop the show self.user_stop_signal = True # and stop the track first if self.current_player is not None: self.current_player.input_pressed('stop') else: # at top, just stop track if running if self.current_player is not None: self.current_player.input_pressed('stop') elif operation == 'down': self.next() elif operation in ('pause', 'pause-on', 'pause-off', 'mute', 'unmute', 'go'): # pass down if show or track running. if self.current_player is not None: self.current_player.input_pressed(operation) elif operation in ('no-command', 'null'): return elif operation[0:4] == 'omx-' or operation[0:6] == 'mplay-': if self.current_player is not None: self.current_player.input_pressed(operation) def next(self): # stop track if running and set signal self.next_track_signal = True if self.current_player is not None: self.current_player.input_pressed('stop') # *************************** # Sequencing # *************************** def wait_for_trigger(self): self.start_show() def start_show(self): self.load_first_track() # load the first track of the show def load_first_track(self): self.mon.trace(self, '') self.medialist.create_new_livelist() self.medialist.use_new_livelist() if self.medialist.start() is False: # print 'FIRST EMPTY' # list is empty - display a message for 5 secs and then retry Show.display_admin_message(self, self.show_params['empty-text']) self.canvas.after(5000, self.remove_list_empty_message) else: # otherwise load the first track # print "!!!!! artshow init first" # print 'after wait EMPTY' self.next_player = Show.base_init_selected_player( self, self.medialist.selected_track()) if self.next_player is None: self.mon.err( self, "Track Type cannot be played by this show: " + self.medialist.selected_track()['type']) self.req_next = 'error' self.what_next() else: # messageplayer passes the text not a file name if self.medialist.selected_track()['type'] == 'message': track_file = self.medialist.selected_track()['text'] else: track_file = Show.base_complete_path( self, self.medialist.selected_track()['location']) # print "!!!!! artshow load first ",track_file self.next_player.load(track_file, self.loaded_callback, enable_menu=False) self.wait_for_load() def remove_list_empty_message(self): Show.delete_admin_message(self) self.load_first_track() # start of the showing loop. Got here from the end of showing. def wait_for_load(self): # wait for load of next track and close of previous to complete # state after this is previous=None, current=closed or pause_at_end, next=loaded or load_failed # and is a good place to test for ending. # self.mon.trace(self,'') if self.next_player is not None: if self.next_player.get_play_state() == 'load-failed': self.req_next = 'error' self.what_next() else: if self.previous_player is None and self.next_player.get_play_state( ) == 'loaded': self.mon.trace(self, ' - next is loaded and previous closed') self.canvas.after(10, self.what_next) else: self.canvas.after(50, self.wait_for_load) else: self.canvas.after(200, self.wait_for_load) def what_next(self): # do we need to end or restart, if so close the current, and unload the next, and wait # until next is unloaded and current has closed self.mon.trace(self, '') # terminate if self.terminate_signal is True: self.terminate_signal = False self.ending_reason = 'killed' self.close_current_and_next() elif self.req_next == 'error': self.req_next = '' # set what to do after closed or unloaded self.ending_reason = 'error' self.close_current_and_next() # used for stopping show from other shows etc. elif self.exit_signal is True: self.exit_signal = False self.stop_timers() self.ending_reason = 'exit' self.close_current_and_next() # user wants to stop the show elif self.user_stop_signal is True: self.user_stop_signal = False self.stop_timers() self.ending_reason = 'user-stop' self.close_current_and_next() elif self.medialist.length() == 0: self.load_first_track() # end of medialist elif self.end_medialist_signal is True: self.end_medialist_signal = False self.end_medialist_warning = False # test for ordered since medialist at end gives false positives for shuffle # repeat so go back to start if self.show_params['sequence'] == "ordered" and self.show_params[ 'repeat'] == 'repeat': self.show_next_track() # single run so end elif self.show_params['sequence'] == "ordered" and self.show_params[ 'repeat'] == 'single-run': self.ending_reason = 'end-of-medialist' self.close_current_and_next() else: # otherwise show the next track self.show_next_track() else: # otherwise show the next track self.show_next_track() def show_next_track(self): self.mon.trace(self, ' - SHUFFLE') self.previous_player = self.current_player self.current_player = self.next_player self.next_player = None self.mon.trace( self, 'AFTER SHUFFLE n-c-p' + self.mon.pretty_inst(self.next_player) + ' ' + self.mon.pretty_inst(self.current_player) + ' ' + self.mon.pretty_inst(self.previous_player)) self.mon.trace(self, 'showing track') if self.end_medialist_warning is True: self.end_medialist_signal = True self.current_player.show(self.track_ready_callback, self.finished_showing, self.closed_after_showing) # load the next after a wait to allow animation etc to be timely. self.canvas.after(self.load_delay, self.what_to_load_next) def finished_showing(self, reason, message): # showing has finished with 'pause at end', showing the next track will close it after next has started showing self.mon.trace(self, ' - pause at end') self.mon.log( self, "finished_showing - pause at end of showing with reason: " + reason + ' and message: ' + message) if self.current_player.play_state == 'show-failed': self.req_next = 'error' self.what_next() else: self.req_next = 'finished-player' self.wait_for_load() def closed_after_showing(self, reason, message): # showing has finished with closing of player but track instance is alive for hiding the x_content self.mon.trace(self, ' - closed after showing') self.mon.log( self, "closed_after_showing - Closed after showing with reason: " + reason + ' and message: ' + message) if self.current_player.play_state == 'show-failed': self.req_next = 'error' self.what_next() else: self.req_next = 'finished-player' self.wait_for_load() # pre-load the next track. Runs concurrently to show. Control goes nowhere after completion, success is detected from the states. def what_to_load_next(self): self.mon.trace(self, self.pretty_state()) # closing down so don't load anything if self.ending_reason in ('killed', 'error'): return # wanting to exit so don't load just skip to what-next if self.terminate_signal is True or self.exit_signal is True or self.req_next == 'error': self.what_next() # has content of list been changed (replaced if it has, used for content of livelist) # print 'WHAT to load NEXT' self.medialist.create_new_livelist() # print result, self.medialist.new_length(),self.medialist.anon_length() if self.medialist.livelist_changed() is True: # print 'ITS CHANGED' self.ending_reason = 'change-medialist' self.close_current_and_next() else: # get the next track and init player self.medialist.next(self.show_params['sequence']) Show.delete_admin_message(self) if self.medialist.at_end() is True: self.end_medialist_warning = True # print "!!!!! artshow init next " self.next_player = Show.base_init_selected_player( self, self.medialist.selected_track()) if self.next_player is None: self.mon.err( self, "Track Type cannot be played by this show: " + self.medialist.selected_track()['type']) self.req_next = 'error' self.what_next() else: # load the next track while current is showing # messageplayer passes the text not a file name if self.medialist.selected_track()['type'] == 'message': track_file = self.medialist.selected_track()['text'] else: track_file = Show.base_complete_path( self, self.medialist.selected_track()['location']) # print "!!!!! artshow load next ",track_file self.mon.trace(self, track_file) self.next_player.load(track_file, self.loaded_callback, enable_menu=False) def loaded_callback(self, reason, message): self.mon.trace( self, ' - load complete with reason: ' + reason + ' message: ' + message) ## def end_close_previous(self,reason,message): ## self.mon.log(self,"end_close_previous - Previous closed with reason: "+reason+ ' and message: '+ message) ## self.mon.trace(self,' - previous closed') ## self.previous_player=None # safer to delete the player here rather than in player as play-state is read elsewhere. def close_current_and_next(self): # end of show so close current, next and previous before ending if self.current_player is not None and self.current_player.get_play_state( ) == 'showing': self.mon.trace(self, ' - closing_current from ' + self.ending_reason) self.current_player.close(self.end_close_current) if self.next_player is not None: if self.next_player.get_play_state() not in ('unloaded', 'closed', 'initialised', 'load-failed'): self.mon.trace(self, '- unloading next from ' + self.ending_reason) self.next_player.unload() self.wait_for_end() def end_close_current(self, reason, message): self.mon.log( self, "Current track closed with reason: " + reason + ' and message: ' + message) self.mon.trace(self, ' - current closed') self.current_player = None # safer to delete the player here rather than in player as play-state is read elsewhere. # previous=None at this point,just wait for loading and closing to complete then end def wait_for_end(self): self.mon.trace(self, self.pretty_state()) ok_to_end = 0 if self.current_player is None or self.current_player.get_play_state( ) == 'closed': self.current_player = None ok_to_end += 1 if self.next_player is None or self.next_player.get_play_state() in ( 'initialised', 'unloaded', 'load-failed'): self.next_player = None ok_to_end += 1 if ok_to_end != 2: self.canvas.after(50, self.wait_for_end) else: self.mon.trace(self, ' - next and current closed ' + self.ending_reason) if self.ending_reason == 'killed': self.base_close_previous() elif self.ending_reason == 'error': self.base_close_previous() elif self.ending_reason == 'exit': self.base_close_previous() elif self.ending_reason == 'end-trigger': self.state = 'waiting' self.wait_for_trigger() elif self.ending_reason in ('user-stop', 'end-of-medialist'): self.end('normal', "show quit by user or natural end") elif self.ending_reason == 'change-medialist': self.load_first_track() else: self.mon.err(self, "Unhandled ending_reason: " + self.ending_reason) self.end('error', "Unhandled ending_reason: " + self.ending_reason) def track_ready_callback(self, enable_show_background): self.mon.trace(self, '') # get control bindings for this show self.controlsmanager = ControlsManager() if self.show_params['disable-controls'] == 'yes': self.controls_list = [] else: reason, message, self.controls_list = self.controlsmanager.get_controls( self.show_params['controls']) if reason == 'error': self.mon.err(self, message) self.end('error', "error in controls: " + message) return # print '\nshow controls',self.show_params['controls'] #merge controls from the track controls_text = self.current_player.get_links() # print 'current player controls',controls_text reason, message, track_controls = self.controlsmanager.parse_controls( controls_text) if reason == 'error': self.mon.err( self, message + " in track: " + self.current_player.track_params['track-ref']) self.error_signal = True self.what_next_after_showing() self.controlsmanager.merge_controls(self.controls_list, track_controls) # show the show background done for every track but quick operation if enable_show_background is True: self.base_show_show_background() else: self.base_withdraw_show_background() # !!!!!!!!! withdraw the background from the parent show if self.previous_shower != None: self.previous_shower.base_withdraw_show_background() # close the player from the previous track if self.previous_player is not None: self.mon.trace( self, 'hiding previous: ' + self.mon.pretty_inst(self.previous_player)) self.previous_player.hide() if self.previous_player.get_play_state() == 'showing': self.mon.trace( self, 'closing previous: ' + self.mon.pretty_inst(self.previous_player)) self.previous_player.close(self.closed_callback) else: self.mon.trace(self, 'previous is none') self.previous_player = None def closed_callback(self, reason, message): self.mon.trace(self, reason + ' ' + message) self.previous_player = None def base_close_previous(self): self.mon.log( self, self.show_params['show-ref'] + ' ' + str(self.show_id) + ": base close previous") self.mon.trace(self, '') # close the player from the previous track if self.previous_player is not None: self.mon.trace( self, 'previous is not None ' + self.mon.pretty_inst(self.previous_player)) if self.previous_player.get_play_state() == 'showing': # showing or frozen self.mon.trace( self, 'closing previous ' + self.mon.pretty_inst(self.previous_player)) self.previous_player.close(self._base_close_previous_callback) else: self.mon.trace(self, 'previous is not showing') self.previous_player.hide() self.previous_player = None self.end(self.ending_reason, '') else: self.mon.trace(self, 'previous is None') self.end(self.ending_reason, '') def _base_close_previous_callback(self, status, message): self.mon.trace( self, ' previous is None - was ' + self.mon.pretty_inst(self.previous_player)) self.previous_player.hide() self.previous_player = None self.end(self.ending_reason, '') # *************************** # end of show # *************************** def end(self, reason, message): Show.delete_admin_message(self) self.base_withdraw_show_background() self.base_delete_show_background() self.mon.log(self, "Ending Artshow: " + self.show_params['show-ref']) self.end_callback(self.show_id, reason, message) self = None def stop_timers(self): pass #if self.duration_timer is not None: #self.canvas.after_cancel(self.duration_timer) #self.duration_timer=None # clear outstanding time of day events for this show # self.tod.clear_times_list(id(self)) # *************************** # debug # *************************** def pretty_state(self): state = ' n-c-p - ' if self.next_player is not None: state += self.next_player.get_play_state() else: state += 'None' if self.current_player is not None: state += self.current_player.get_play_state() else: state += 'None' if self.previous_player is not None: state += self.previous_player.get_play_state() else: state += 'None' return state
class MenuShow(Show): def __init__(self, show_id, show_params, root, canvas, showlist, pp_dir, pp_home, pp_profile, command_callback): """ show_id - index of the top level show caling this (for debug only) show_params - dictionary section for the menu canvas - the canvas that the menu is to be written on showlist - the showlist pp_dir - Pi Presents directory pp_home - Pi presents data_home directory pp_profile - Pi presents profile directory """ # init the common bits Show.base__init__( self, show_id, show_params, root, canvas, showlist, pp_dir, pp_home, pp_profile, command_callback ) # instatiatate the screen driver - used only to access enable and hide click areas self.sr = ScreenDriver() self.controlsmanager = ControlsManager() # init variables self.show_timeout_timer = None self.track_timeout_timer = None self.next_track_signal = False self.next_track = None self.menu_index = 0 self.menu_showing = True self.req_next = "" def play(self, end_callback, show_ready_callback, parent_kickback_signal, level, controls_list): """ displays the menu end_callback - function to be called when the menu exits show_ready_callback - callback when menu is ready to display (not used) level is 0 when the show is top level (run from [start] or from show control) parent_kickback_signal - not used other than it being passed to a show """ # need to instantiate the medialist here as not using gapshow self.medialist = MediaList("ordered") Show.base_play(self, end_callback, show_ready_callback, parent_kickback_signal, level, controls_list) self.mon.trace(self, self.show_params["show-ref"]) # parse the show and track timeouts reason, message, self.show_timeout = Show.calculate_duration(self, self.show_params["show-timeout"]) if reason == "error": self.mon.err(self, "Show Timeout has bad time: " + self.show_params["show-timeout"]) self.end("error", "show timeout, bad time") reason, message, self.track_timeout = Show.calculate_duration(self, self.show_params["track-timeout"]) if reason == "error": self.mon.err(self, "Track Timeout has bad time: " + self.show_params["track-timeout"]) self.end("error", "track timeout, bad time") # and delete eggtimer if self.previous_shower is not None: self.previous_shower.delete_eggtimer() # and display the menu self.do_menu_track() # ******************** # respond to inputs. # ******************** # exit received from another concurrent show def exit(self): self.stop_timers() Show.base_exit(self) # show timeout happened def show_timeout_stop(self): self.stop_timers() Show.base_show_timeout_stop(self) # terminate Pi Presents def terminate(self): self.stop_timers() Show.base_terminate(self) def handle_input_event(self, symbol): Show.base_handle_input_event(self, symbol) def handle_input_event_this_show(self, symbol): # menushow has only internal operation operation = self.base_lookup_control(symbol, self.controls_list) self.do_operation(operation) def do_operation(self, operation): # service the standard inputs for this show self.mon.trace(self, operation) if operation == "exit": self.exit() elif operation == "stop": self.stop_timers() if self.current_player is not None: if self.menu_showing is True and self.level != 0: # if quiescent then set signal to stop the show when track has stopped self.user_stop_signal = True self.current_player.input_pressed("stop") elif operation in ("up", "down"): # stop show timeout if self.show_timeout_timer is not None: self.canvas.after_cancel(self.show_timeout_timer) # and start it again if self.show_timeout != 0: self.show_timeout_timer = self.canvas.after(self.show_timeout * 1000, self.show_timeout_stop) if operation == "up": self.previous() else: self.next() elif operation == "play": self.next_track_signal = True self.next_track = self.medialist.selected_track() self.current_player.stop() # cancel show timeout if self.show_timeout_timer is not None: self.canvas.after_cancel(self.show_timeout_timer) self.show_timeout_timer = None # stop current track (the menuplayer) if running or just start the next track if self.current_player is not None: self.current_player.input_pressed("stop") else: self.what_next_after_showing() elif operation in ("no-command", "null"): return elif operation == "pause": if self.current_player is not None: self.current_player.input_pressed(operation) elif operation[0:4] == "omx-" or operation[0:6] == "mplay-" or operation[0:5] == "uzbl-": if self.current_player is not None: self.current_player.input_pressed(operation) def next(self): # remove highlight if self.current_player.__class__.__name__ == "MenuPlayer": self.current_player.highlight_menu_entry(self.menu_index, False) self.medialist.next("ordered") if self.menu_index == self.menu_length - 1: self.menu_index = 0 else: self.menu_index += 1 # and highlight the new entry self.current_player.highlight_menu_entry(self.menu_index, True) def previous(self): # remove highlight if self.current_player.__class__.__name__ == "MenuPlayer": self.current_player.highlight_menu_entry(self.menu_index, False) if self.menu_index == 0: self.menu_index = self.menu_length - 1 else: self.menu_index -= 1 self.medialist.previous("ordered") # and highlight the new entry self.current_player.highlight_menu_entry(self.menu_index, True) # ********************* # Sequencing # ********************* def track_timeout_callback(self): self.do_operation("stop") def do_menu_track(self): self.menu_showing = True self.mon.trace(self, "") # start show timeout alarm if required if self.show_timeout != 0: self.show_timeout_timer = self.canvas.after(self.show_timeout * 1000, self.show_timeout_stop) # init the index used to hiighlight the selected menu entry by menuplayer self.menu_index = 0 index = self.medialist.index_of_track(self.show_params["menu-track-ref"]) if index == -1: self.mon.err(self, "'menu-track' not in medialist: " + self.show_params["menu-track-ref"]) self.end("error", "menu-track not in medialist: ") return # make the medialist available to the menuplayer for cursor scrolling self.show_params["medialist_obj"] = self.medialist # load the menu track self.start_load_show_loop(self.medialist.track(index)) # ********************* # Playing show or track loop # ********************* def start_load_show_loop(self, selected_track): # shuffle players Show.base_shuffle(self) self.mon.trace(self, "") self.display_eggtimer() # get control bindings for this show # needs to be done for each track as track can override the show controls if self.show_params["disable-controls"] == "yes": self.controls_list = [] else: reason, message, self.controls_list = self.controlsmanager.get_controls(self.show_params["controls"]) if reason == "error": self.mon.err(self, message) self.end("error", "error in controls") return # load the track or show Show.base_load_track_or_show(self, selected_track, self.what_next_after_load, self.end_shower, False) # track has loaded (menu or otherwise) so show it. def what_next_after_load(self, status, message): # get the calculated length of the menu for the loaded menu track if self.current_player.__class__.__name__ == "MenuPlayer": if self.medialist.display_length() == 0: self.req_next = "error" self.what_next_after_showing() return self.medialist.start() self.menu_index = 0 self.menu_length = self.current_player.menu_length self.current_player.highlight_menu_entry(self.menu_index, True) self.mon.trace(self, " - load complete with status: " + status + " message: " + message) if self.current_player.play_state == "load-failed": self.req_next = "error" self.what_next_after_showing() else: if ( self.show_timeout_signal is True or self.terminate_signal is True or self.exit_signal is True or self.user_stop_signal is True ): self.what_next_after_showing() else: self.mon.trace(self, "") self.current_player.show(self.track_ready_callback, self.finished_showing, self.closed_after_showing) def finished_showing(self, reason, message): # showing has finished with 'pause at end', showing the next track will close it after next has started showing self.mon.trace(self, "") self.mon.log(self, "pause at end of showing track with reason: " + reason + " and message: " + message) self.sr.hide_click_areas(self.controls_list) if self.current_player.play_state == "show-failed": self.req_next = "error" else: self.req_next = "finished-player" self.what_next_after_showing() def closed_after_showing(self, reason, message): # showing has finished with closing of player but track instance is alive for hiding the x_content self.mon.trace(self, "") self.mon.log(self, "Closed after showing track with reason: " + reason + " and message: " + message) self.sr.hide_click_areas(self.controls_list) if self.current_player.play_state == "show-failed": self.req_next = "error" else: self.req_next = "closed-player" self.what_next_after_showing() # subshow or child show has ended def end_shower(self, show_id, reason, message): self.mon.log( self, self.show_params["show-ref"] + " " + str(self.show_id) + ": Returned from shower with " + reason + " " + message, ) self.sr.hide_click_areas(self.controls_list) self.req_next = reason Show.base_end_shower(self) self.what_next_after_showing() # at the end of a track check for terminations else re-display the menu def what_next_after_showing(self): self.mon.trace(self, "") # cancel track timeout timer if self.track_timeout_timer is not None: self.canvas.after_cancel(self.track_timeout_timer) self.track_timeout_timer = None # need to terminate? if self.terminate_signal is True: self.terminate_signal = False # set what to do when closed or unloaded self.ending_reason = "killed" Show.base_close_or_unload(self) elif self.req_next == "error": self.req_next = "" # set what to do after closed or unloaded self.ending_reason = "error" Show.base_close_or_unload(self) # show timeout elif self.show_timeout_signal is True: self.show_timeout_signal = False # set what to do when closed or unloaded self.ending_reason = "show-timeout" Show.base_close_or_unload(self) # used by exit for stopping show from other shows. elif self.exit_signal is True: self.exit_signal = False self.ending_reason = "exit" Show.base_close_or_unload(self) # user wants to stop elif self.user_stop_signal is True: self.user_stop_signal = False self.ending_reason = "user-stop" Show.base_close_or_unload(self) elif self.next_track_signal is True: self.next_track_signal = False self.menu_showing = False # start timeout for the track if required if self.track_timeout != 0: self.track_timeout_timer = self.canvas.after(self.track_timeout * 1000, self.track_timeout_callback) self.start_load_show_loop(self.next_track) else: # no stopping the show required so re-display the menu self.do_menu_track() # ********************* # Interface with other shows/players to reduce black gaps # ********************* # called just before a track is shown to remove the previous track from the screen # and if necessary close it def track_ready_callback(self, enable_show_background): self.delete_eggtimer() if self.show_params["disable-controls"] != "yes": # merge controls from the track controls_text = self.current_player.get_links() reason, message, track_controls = self.controlsmanager.parse_controls(controls_text) if reason == "error": self.mon.err(self, message + " in track: " + self.current_player.track_params["track-ref"]) self.req_next = "error" self.what_next_after_showing() self.controlsmanager.merge_controls(self.controls_list, track_controls) self.sr.enable_click_areas(self.controls_list) Show.base_track_ready_callback(self, enable_show_background) # callback from begining of a subshow, provide previous shower player to called show def subshow_ready_callback(self): return Show.base_subshow_ready_callback(self) # ********************* # Ending the show # ********************* def end(self, reason, message): self.stop_timers() Show.base_end(self, reason, message) def stop_timers(self): if self.track_timeout_timer is not None: self.canvas.after_cancel(self.track_timeout_timer) self.track_timeout_timer = None if self.show_timeout_timer is not None: self.canvas.after_cancel(self.show_timeout_timer) self.show_timeout_timer = None
class ArtShow(Show): """ Automatically plays a set of tracks from a medialist. Does gapless and time of day trigger but little else. """ # ******************* # External interface # ******************** def __init__(self, show_id, show_params, root, canvas, showlist, pp_dir, pp_home, pp_profile, command_callback): # init the common bits Show.base__init__(self, show_id, show_params, root, canvas, showlist, pp_dir, pp_home, pp_profile, command_callback) # delay in mS before next track is loaded after showing a track. # can be reduced if animation is not required self.load_delay = 2000 # Init variables for this show self.end_medialist_signal=False self.end_medialist_warning=False self.next_track_signal=False self.state='closed' self.req_next='' def play(self,end_callback,show_ready_callback, parent_kickback_signal,level,controls_list): self.mon.trace(self,self.show_params['show-ref']) Show.base_play(self,end_callback,show_ready_callback,parent_kickback_signal, level,controls_list) # get the previous shower and player from calling show # Show.base_get_previous_player_from_parent(self) # and delete eggtimer started by the parent if self.previous_shower is not None: self.previous_shower.delete_eggtimer() self.wait_for_trigger() # ******************************** # Respond to external events # ******************************** def exit(self): # set signal to stop the show when all sub-shows and players have ended self.exit_signal=True # then stop track. if self.current_player is not None: self.current_player.input_pressed('stop') else: self.end('normal','ended by exit') # kill or error def terminate(self): self.terminate_signal=True if self.current_player is not None: self.ending_reason='killed' self.close_current_and_next() else: self.end('killed',' terminated with no shower or player to terminate') # respond to key presses. def handle_input_event(self,symbol): Show.base_handle_input_event(self,symbol) def handle_input_event_this_show(self,symbol): operation=self.base_lookup_control(symbol,self.controls_list) self.do_operation(operation) def do_trigger_or_link(self,symbol,edge,source): pass # service the standard operations for this show def do_operation(self,operation): self.mon.trace(self,operation) # service the standard inputs for this show if operation == 'exit': self.exit() elif operation == 'stop': if self.level != 0 : # not at top so stop the show self.user_stop_signal=True # and stop the track first if self.current_player is not None: self.current_player.input_pressed('stop') else: # at top, just stop track if running if self.current_player is not None: self.current_player.input_pressed('stop') elif operation == 'down': self.next() elif operation == 'pause': # pass down if show or track running. if self.current_player is not None: self.current_player.input_pressed('pause') elif operation in ('no-command','null'): return elif operation[0:4] == 'omx-' or operation[0:6] == 'mplay-': if self.current_player is not None: self.current_player.input_pressed(operation) def next(self): # stop track if running and set signal self.next_track_signal=True if self.current_player is not None: self.current_player.input_pressed('stop') # *************************** # Sequencing # *************************** def wait_for_trigger(self): self.start_show() def start_show(self): self.load_first_track() # load the first track of the show def load_first_track(self): self.mon.trace(self,'') if self.medialist.start() is False: # list is empty - display a message for 5 secs and then retry Show.display_admin_message(self,self.show_params['empty-text']) self.canvas.after(5000,self.remove_list_empty_message) else: # otherwise load the first track # print "!!!!! artshow init first" self.next_player=Show.base_init_selected_player(self,self.medialist.selected_track()) if self.next_player is None: self.mon.err(self,"Track Type cannot be played by this show: "+self.medialist.selected_track()['type']) self.req_next='error' self.what_next() else: # messageplayer passes the text not a file name if self.medialist.selected_track()['type'] == 'message': track_file=self.medialist.selected_track()['text'] else: track_file=Show.base_complete_path(self,self.medialist.selected_track()['location']) # print "!!!!! artshow load first ",track_file self.next_player.load(track_file, self.loaded_callback, enable_menu=False) self.wait_for_load() def remove_list_empty_message(self): Show.delete_admin_message(self) self.load_first_track() # start of the showing loop. Got here from the end of showing. def wait_for_load(self): # wait for load of next track and close of previous to complete # state after this is previous=None, current=closed or pause_at_end, next=loaded or load_failed # and is a good place to test for ending. # self.mon.trace(self,'') if self.next_player is not None: if self.next_player.get_play_state() == 'load-failed': self.req_next='error' self.what_next() else: if self.previous_player is None and self.next_player.get_play_state() == 'loaded': self.mon.trace(self,' - next is loaded and previous closed') self.canvas.after(10,self.what_next) else: self.canvas.after(50,self.wait_for_load) else: self.canvas.after(200,self.wait_for_load) def what_next(self): # do we need to end or restart, if so close the current, and unload the next, and wait # until next is unloaded and current has closed self.mon.trace(self,'') # terminate if self.terminate_signal is True: self.terminate_signal=False self.ending_reason='killed' self.close_current_and_next() elif self.req_next== 'error': self.req_next='' # set what to do after closed or unloaded self.ending_reason='error' self.close_current_and_next() # used for stopping show from other shows etc. elif self.exit_signal is True: self.exit_signal=False self.stop_timers() self.ending_reason='exit' self.close_current_and_next() # user wants to stop the show elif self.user_stop_signal is True: self.user_stop_signal=False self.stop_timers() self.ending_reason='user-stop' self.close_current_and_next() elif self.medialist.length() == 0: self.load_first_track() # end of medialist elif self.end_medialist_signal is True: self.end_medialist_signal=False self.end_medialist_warning=False # test for ordered since medialist at end gives false positives for shuffle # repeat so go back to start if self.show_params['sequence'] == "ordered" and self.show_params['repeat'] == 'repeat': self.show_next_track() # single run so end elif self.show_params['sequence'] == "ordered" and self.show_params['repeat'] == 'single-run': self.ending_reason='end-of-medialist' self.close_current_and_next() else: # otherwise show the next track self.show_next_track() else: # otherwise show the next track self.show_next_track() def show_next_track(self): self.mon.trace(self,' - SHUFFLE') self.previous_player=self.current_player self.current_player=self.next_player self.next_player=None self.mon.trace(self,'AFTER SHUFFLE n-c-p' + self.mon.pretty_inst(self.next_player) + ' ' + self.mon.pretty_inst(self.current_player) + ' ' + self.mon.pretty_inst(self.previous_player) ) self.mon.trace(self, 'showing track') if self.end_medialist_warning is True: self.end_medialist_signal = True self.current_player.show(self.track_ready_callback,self.finished_showing,self.closed_after_showing) # wait a short time before loading next self.canvas.after(10,self.what_to_load_next) def finished_showing(self,reason,message): # showing has finished with 'pause at end', showing the next track will close it after next has started showing self.mon.trace(self,' - pause at end') self.mon.log(self,"finished_showing - pause at end of showing with reason: "+reason+ ' and message: '+ message) if self.current_player.play_state == 'show-failed': self.req_next = 'error' self.what_next() else: self.req_next='finished-player' self.wait_for_load() def closed_after_showing(self,reason,message): # showing has finished with closing of player but track instance is alive for hiding the x_content self.mon.trace(self,' - closed after showing') self.mon.log(self,"closed_after_showing - Closed after showing with reason: "+reason+ ' and message: '+ message) if self.current_player.play_state == 'show-failed': self.req_next = 'error' self.what_next() else: self.req_next='finished-player' self.wait_for_load() # pre-load the next track. Runs concurrently to show. Control goes nowhere after completion, success is detected from the states. def what_to_load_next(self): self.mon.trace(self,self.pretty_state ()) # closing down so don't load anything if self.ending_reason in ('killed','error'): return # wanting to exit so don't load just skip to what-next if self.terminate_signal is True or self.exit_signal is True or self.req_next=='error': self.what_next() # has content of list been changed (replaced if it has, used for content of livelist) if self.medialist.replace_if_changed() is True: self.ending_reason='change-medialist' self.close_current_and_next() else: # get the next track and init player self.medialist.next(self.show_params['sequence']) if self.medialist.at_end() is True: self.end_medialist_warning=True # print "!!!!! artshow init next " self.next_player=Show.base_init_selected_player(self,self.medialist.selected_track()) if self.next_player is None: self.mon.err(self,"Track Type cannot be played by this show: "+self.medialist.selected_track()['type']) self.req_next='error' self.what_next() else: # and load the next after a wait to allow animation etc to be timely. self.canvas.after(self.load_delay,self.load_next) def load_next(self): # load the next track while current is showing # messageplayer passes the text not a file name if self.medialist.selected_track()['type'] == 'message': track_file=self.medialist.selected_track()['text'] else: track_file=Show.base_complete_path(self,self.medialist.selected_track()['location']) # print "!!!!! artshow load next ",track_file self.mon.trace(self, track_file) self.next_player.load(track_file, self.loaded_callback, enable_menu=False) def loaded_callback(self,reason,message): self.mon.trace(self,' - load complete with reason: ' + reason + ' message: ' + message) ## def end_close_previous(self,reason,message): ## self.mon.log(self,"end_close_previous - Previous closed with reason: "+reason+ ' and message: '+ message) ## self.mon.trace(self,' - previous closed') ## self.previous_player=None # safer to delete the player here rather than in player as play-state is read elsewhere. def close_current_and_next(self): # end of show so close current, next and previous before ending if self.current_player is not None and self.current_player.get_play_state() == 'showing': self.mon.trace(self,' - closing_current from ' + self.ending_reason) self.current_player.close(self.end_close_current) if self.next_player is not None and self.next_player.get_play_state() not in ('unloaded','closed','initialised','load-failed'): self.mon.trace(self, '- unloading next from ' + self.ending_reason) self.next_player.unload() self.wait_for_end() def end_close_current(self,reason,message): self.mon.log(self,"Current track closed with reason: "+ reason + ' and message: '+ message) self.mon.trace(self,' - current closed') self.current_player=None # safer to delete the player here rather than in player as play-state is read elsewhere. # previous=None at this point,just wait for loading and closing to complete then end def wait_for_end(self): self.mon.trace(self, self.pretty_state()) ok_to_end=0 if self.current_player is None or self.current_player.get_play_state() == 'closed': self.current_player=None ok_to_end+=1 if self.next_player is None or self.next_player.get_play_state() in ('initialised','unloaded','load-failed'): self.next_player=None ok_to_end+=1 if ok_to_end != 2: self.canvas.after(50,self.wait_for_end) else: self.mon.trace(self,' - next and current closed ' + self.ending_reason) if self.ending_reason == 'killed': self.base_close_previous() elif self.ending_reason=='error': self.base_close_previous() elif self.ending_reason == 'exit': self.base_close_previous() elif self.ending_reason == 'end-trigger': self.state='waiting' self.wait_for_trigger() elif self.ending_reason in ('user-stop','end-of-medialist'): self.end('normal',"show quit by user or natural end") elif self.ending_reason == 'change-medialist': self.load_first_track() else: self.mon.err(self,"Unhandled ending_reason: ") self.end('error',"Unhandled ending_reason") def track_ready_callback(self,enable_show_background): self.mon.trace(self, '') # get control bindings for this show self.controlsmanager=ControlsManager() if self.show_params['disable-controls'] == 'yes': self.controls_list=[] else: reason,message,self.controls_list= self.controlsmanager.get_controls(self.show_params['controls']) if reason=='error': self.mon.err(self,message) self.end('error',"error in controls") return # print '\nshow controls',self.show_params['controls'] #merge controls from the track controls_text=self.current_player.get_links() # print 'current player controls',controls_text reason,message,track_controls=self.controlsmanager.parse_controls(controls_text) if reason == 'error': self.mon.err(self,message + " in track: "+ self.current_player.track_params['track-ref']) self.error_signal=True self.what_next_after_showing() self.controlsmanager.merge_controls(self.controls_list,track_controls) # show the show background done for every track but quick operation if enable_show_background is True: self.base_show_show_background() else: self.base_withdraw_show_background() # !!!!!!!!! withdraw the background from the parent show if self.previous_shower != None: self.previous_shower.base_withdraw_show_background() # close the player from the previous track if self.previous_player is not None: self.mon.trace(self, 'hiding previous: ' + self.mon.pretty_inst(self.previous_player)) self.previous_player.hide() if self.previous_player.get_play_state() == 'showing': self.mon.trace(self,'closing previous: ' + self.mon.pretty_inst(self.previous_player)) self.previous_player.close(self.closed_callback) else: self.mon.trace(self, 'previous is none') self.previous_player=None def closed_callback(self,reason,message): self.mon.trace(self, reason +' '+ message) self.previous_player=None def base_close_previous(self): self.mon.log(self,self.show_params['show-ref']+ ' '+ str(self.show_id)+ ": base close previous") self.mon.trace(self, '') # close the player from the previous track if self.previous_player is not None: self.mon.trace(self, 'previous is not None ' + self.mon.pretty_inst(self.previous_player)) if self.previous_player.get_play_state() == 'showing': # showing or frozen self.mon.trace(self,'closing previous ' + self.mon.pretty_inst(self.previous_player)) self.previous_player.close(self._base_close_previous_callback) else: self.mon.trace(self, 'previous is not showing') self.previous_player.hide() self.previous_player=None self.end(self.ending_reason,'') else: self.mon.trace(self,'previous is None') self.end(self.ending_reason,'') def _base_close_previous_callback(self,status,message): self.mon.trace(self,' previous is None - was ' + self.mon.pretty_inst(self.previous_player)) self.previous_player.hide() self.previous_player=None self.end(self.ending_reason,'') # *************************** # end of show # *************************** def end(self,reason,message): self.base_withdraw_show_background() self.base_delete_show_background() self.mon.log(self,"Ending Mediashow: "+ self.show_params['show-ref']) self.end_callback(self.show_id,reason,message) self=None def stop_timers(self): pass #if self.duration_timer is not None: #self.canvas.after_cancel(self.duration_timer) #self.duration_timer=None # clear outstanding time of day events for this show # self.tod.clear_times_list(id(self)) # *************************** # debug # *************************** def pretty_state(self): state = ' n-c-p - ' if self.next_player is not None: state += self.next_player.get_play_state() else: state += 'None' if self.current_player is not None: state += self.current_player.get_play_state() else: state += 'None' if self.previous_player is not None: state += self.previous_player.get_play_state() else: state += 'None' return state
class GapShow(Show): """ this is the parent class of mediashow and liveshow The two derived clases just select the appropriate medialist from pp_medialist and pp_livelist the parents control the monitoring """ # ******************* # External interface # ******************** def __init__(self, show_id, show_params, root, canvas, showlist, pp_dir, pp_home, pp_profile, command_callback): # init the common bits Show.base__init__(self, show_id, show_params, root, canvas, showlist, pp_dir, pp_home, pp_profile, command_callback) # instatiatate the screen driver - used only to access enable and hide click areas self.sr = ScreenDriver() self.controlsmanager = ControlsManager() # Init variables special to this show self.poll_for_interval_timer = None self.interval_timer_signal = False self.waiting_for_interval = False self.interval_timer = None self.duration_timer = None self.end_trigger_signal = False self.next_track_signal = False self.previous_track_signal = False self.play_child_signal = False self.error_signal = False self.show_timeout_signal = False self.req_next = 'nil' self.state = 'closed' self.count = 0 self.interval = 0 self.duration = 0 self.controls_list = [] self.enable_hint = True def play(self, end_callback, show_ready_callback, parent_kickback_signal, level, controls_list): self.mon.newline(3) self.mon.trace(self, self.show_params['show-ref']) Show.base_play(self, end_callback, show_ready_callback, parent_kickback_signal, level, controls_list) # unpack show parameters reason, message, self.show_timeout = Show.calculate_duration( self, self.show_params['show-timeout']) if reason == 'error': self.mon.err( self, 'ShowTimeout has bad time: ' + self.show_params['show-timeout']) self.end( 'error', 'ShowTimeout has bad time: ' + self.show_params['show-timeout']) self.track_count_limit = int(self.show_params['track-count-limit']) reason, message, self.interval = Show.calculate_duration( self, self.show_params['interval']) if reason == 'error': self.mon.err( self, 'Interval has bad time: ' + self.show_params['interval']) self.end('error', 'Interval has bad time: ' + self.show_params['interval']) # delete eggtimer started by the parent if self.previous_shower is not None: self.previous_shower.delete_eggtimer() self.start_show() # ******************************** # Respond to external events # ******************************** # exit received from another concurrent show def exit(self): Show.base_exit(self) # terminate Pi Presents def terminate(self): Show.base_terminate(self) # respond to input events def handle_input_event(self, symbol): Show.base_handle_input_event(self, symbol) def handle_input_event_this_show(self, symbol): # check symbol against mediashow triggers if self.state == 'waiting' and self.show_params[ 'trigger-start-type'] in ( 'input', 'input-persist' ) and symbol == self.show_params['trigger-start-param']: self.mon.stats(self.show_params['type'], self.show_params['show-ref'], self.show_params['title'], 'start trigger', '', '', '') Show.delete_admin_message(self) self.start_list() elif self.state == 'playing' and self.show_params[ 'trigger-end-type'] == 'input' and symbol == self.show_params[ 'trigger-end-param']: self.end_trigger_signal = True if self.shower is not None: self.shower.do_operation('stop') elif self.current_player is not None: self.current_player.input_pressed('stop') elif self.state == 'playing' and self.show_params[ 'trigger-next-type'] == 'input' and symbol == self.show_params[ 'trigger-next-param']: self.mon.stats(self.show_params['type'], self.show_params['show-ref'], self.show_params['title'], 'next trigger', '', '', '') self.next() else: # event is not a trigger so must be internal operation operation = self.base_lookup_control(symbol, self.controls_list) if operation != '': self.do_operation(operation) # overrides base # service the standard operations for this show def do_operation(self, operation): # print 'do_operation ',operation self.mon.trace(self, operation) if operation == 'exit': self.exit() elif operation == 'stop': if self.level != 0: # not at top so stop the show self.user_stop_signal = True # and stop the track first if self.current_player is not None: self.current_player.input_pressed('stop') else: # at top, just stop track if running if self.current_player is not None: self.current_player.input_pressed('stop') elif operation == 'up' and self.state == 'playing': # print '\nUP' self.previous() elif operation == 'down' and self.state == 'playing': self.next() elif operation == 'play': # use 'play' to start child if state=playing or to trigger the show if waiting for trigger if self.state == 'playing': if self.show_params['child-track-ref'] != '': # set a signal because must stop current track before running child show self.play_child_signal = True self.child_track_ref = self.show_params['child-track-ref'] # and stop the current track if its running if self.current_player is not None: self.current_player.input_pressed('stop') else: if self.state == 'waiting': self.mon.stats(self.show_params['type'], self.show_params['show-ref'], self.show_params['title'], 'start trigger', '', '', '') Show.delete_admin_message(self) self.start_list() elif operation == 'pause': if self.current_player is not None: self.current_player.input_pressed('pause') elif operation in ('no-command', 'null'): return # if the operation is omxplayer mplayer or uzbl runtime control then pass it to player if running elif operation[0:4] == 'omx-' or operation[ 0:6] == 'mplay-' or operation[0:5] == 'uzbl-': if self.current_player is not None: self.current_player.input_pressed(operation) def next(self): # stop track if running and set signal self.next_track_signal = True if self.shower is not None: self.shower.do_operation('stop') else: if self.current_player is not None: self.current_player.input_pressed('stop') def previous(self): self.previous_track_signal = True if self.shower is not None: self.shower.do_operation('stop') else: if self.current_player is not None: self.current_player.input_pressed('stop') # *************************** # Show sequencing # *************************** def start_show(self): # initial direction from parent show self.kickback_for_next_track = self.parent_kickback_signal # print '\n\ninital KICKBACK from parent', self.kickback_for_next_track # start duration timer if self.show_timeout != 0: # print 'set alarm ', self.show_timeout self.duration_timer = self.canvas.after(self.show_timeout * 1000, self.show_timeout_stop) self.first_list = True # and start the first list of the show self.wait_for_trigger() def wait_for_trigger(self): # wait for trigger sets the state to waiting so that trigger events can do a start_list. self.state = 'waiting' self.mon.log( self, self.show_params['show-ref'] + ' ' + str(self.show_id) + ": Waiting for trigger: " + self.show_params['trigger-start-type']) if self.show_params['trigger-start-type'] == "input": #close the previous track to display admin message Show.base_shuffle(self) Show.base_track_ready_callback(self, False) Show.display_admin_message(self, self.show_params['trigger-wait-text']) elif self.show_params['trigger-start-type'] == "input-persist": if self.first_list == True: #first time through track list so play the track without waiting to get to end. self.first_list = False self.start_list() else: #wait for trigger while displaying previous track pass elif self.show_params['trigger-start-type'] == "start": # don't close the previous track to give seamless repeat of the show self.start_list() else: self.mon.err( self, "Unknown trigger: " + self.show_params['trigger-start-type']) self.end( 'error', "Unknown trigger: " + self.show_params['trigger-start-type']) # timer for repeat=interval def end_interval_timer(self): self.interval_timer_signal = True # print 'INTERVAL TIMER ended' if self.shower is not None: self.shower.do_operation('stop') elif self.current_player is not None: self.current_player.input_pressed('stop') # show timeout happened def show_timeout_stop(self): self.stop_timers() Show.base_show_timeout_stop(self) def start_list(self): # starts the list or any repeat having waited for trigger first. self.state = 'playing' # initialise track counter for the list self.track_count = 0 # start interval timer self.interval_timer_signal = False if self.interval != 0: self.interval_timer = self.canvas.after(self.interval * 1000, self.end_interval_timer) #get rid of previous track in order to display the empty message if self.medialist.display_length() == 0: Show.base_shuffle(self) Show.base_track_ready_callback(self, False) Show.display_admin_message(self, self.show_params['empty-text']) self.wait_for_not_empty() else: self.not_empty() def wait_for_not_empty(self): if self.medialist.display_length() == 0: # list is empty retry after 5 secs self.canvas.after(5000, self.wait_for_not_empty) else: Show.delete_admin_message(self) self.not_empty() def not_empty(self): #get first or last track depending on direction # print 'use direction for start or end of list', self.kickback_for_next_track if self.kickback_for_next_track is True: self.medialist.finish() else: self.medialist.start() self.start_load_show_loop(self.medialist.selected_track()) # *************************** # Track load/show loop # *************************** # track playing loop starts here def start_load_show_loop(self, selected_track): # uncomment the next line to write stats for every track # Show.write_stats(self,'play a track',self.show_params,selected_track) # shuffle players Show.base_shuffle(self) self.delete_eggtimer() # is child track required if self.show_params['child-track-ref'] != '': self.enable_child = True else: self.enable_child = False # load the track or show # params - track,enable_menu enable = self.enable_child & self.enable_hint Show.base_load_track_or_show(self, selected_track, self.what_next_after_load, self.end_shower, enable) # track has loaded so show it. def what_next_after_load(self, status, message): self.mon.log( self, 'Show Id ' + str(self.show_id) + ' load complete with status: ' + status + ' message: ' + message) if self.current_player.play_state == 'load-failed': self.error_signal = True self.what_next_after_showing() else: if self.terminate_signal is True or self.exit_signal is True or self.user_stop_signal is True: self.what_next_after_showing() else: self.mon.trace(self, ' - showing track') self.current_player.show(self.track_ready_callback, self.finished_showing, self.closed_after_showing) def finished_showing(self, reason, message): self.sr.hide_click_areas(self.controls_list) if self.current_player.play_state == 'show-failed': self.error_signal = True else: self.req_next = 'finished-player' # showing has finished with 'pause at end', showing the next track will close it after next has started showing self.mon.trace(self, ' - pause at end ') self.mon.log( self, "pause at end of showing track with reason: " + reason + ' and message: ' + message) self.what_next_after_showing() def closed_after_showing(self, reason, message): self.sr.hide_click_areas(self.controls_list) if self.current_player.play_state == 'show-failed': self.error_signal = True else: self.req_next = 'closed-player' # showing has finished with closing of player but track instance is alive for hiding the x_content self.mon.trace(self, ' - closed') self.mon.log( self, "Closed after showing track with reason: " + reason + ' and message: ' + message) self.what_next_after_showing() # subshow or child show has ended def end_shower(self, show_id, reason, message): self.mon.log( self, self.show_params['show-ref'] + ' ' + str(self.show_id) + ': Returned from shower with ' + reason + ' ' + message) self.sr.hide_click_areas(self.controls_list) self.req_next = reason Show.base_end_shower(self) self.what_next_after_showing() def pretty_what_next_after_showing_state(self): state = '\n* terminate signal ' + str(self.terminate_signal) state += '\n* error signal ' + str(self.error_signal) state += '\n* req_next used to indicate subshow reports an error ' + self.req_next state += '\n* exit signal ' + str(self.exit_signal) state += '\n* show timeout signal ' + str(self.show_timeout_signal) state += '\n* user stop signal ' + str(self.user_stop_signal) state += '\n* previous track signal ' + str( self.previous_track_signal) state += '\n* next track signal ' + str(self.next_track_signal) state += '\n* kickback from subshow ' + str( self.subshow_kickback_signal) return state + '\n' def what_next_after_showing(self): self.mon.trace(self, self.pretty_what_next_after_showing_state()) self.track_count += 1 # set false when child rack is to be played self.enable_hint = True # first of all deal with conditions that do not require the next track to be shown # some of the conditions can happen at any time, others only when a track is closed or at pause_at_end # need to terminate if self.terminate_signal is True: self.terminate_signal = False self.stop_timers() # set what to do after closed or unloaded self.ending_reason = 'killed' Show.base_close_or_unload(self) elif self.error_signal == True or self.req_next == 'error': self.error_signal = False self.req_next = '' self.stop_timers() # set what to do after closed or unloaded self.ending_reason = 'error' Show.base_close_or_unload(self) # used for exiting show from other shows, time of day, external etc. elif self.exit_signal is True: self.exit_signal = False self.stop_timers() self.ending_reason = 'exit' Show.base_close_or_unload(self) # show timeout elif self.show_timeout_signal is True: self.show_timeout_signal = False self.stop_timers() self.ending_reason = 'user-stop' Show.base_close_or_unload(self) # user wants to stop the show elif self.user_stop_signal is True: self.user_stop_signal = False self.stop_timers() self.ending_reason = 'user-stop' Show.base_close_or_unload(self) # interval > 0. If last track has finished we are waiting for interval timer before ending the list # note: if medialist finishes after interval is up then this route is used to start trigger. elif self.waiting_for_interval is True: # interval_timer_signal set by alarm clock started in start_list if self.interval_timer_signal is True: self.interval_timer_signal = False self.waiting_for_interval = False # print 'RECEIVED INTERVAL TIMER SIGNAL' if self.show_params['repeat'] == 'repeat': self.wait_for_trigger() else: self.stop_timers() self.ending_reason = 'user-stop' Show.base_close_or_unload(self) else: self.poll_for_interval_timer = self.canvas.after( 1000, self.what_next_after_showing) # has content of list been changed (replaced if it has, used for content of livelist) # causes it to go to wait_for_trigger and start_list #not sure why need clos_and_unload here ??????? elif self.medialist.replace_if_changed() is True: self.ending_reason = 'change-medialist' # print 'CHANGE REQ' Show.base_close_or_unload(self) # otherwise consider operation that might show the next track else: # setup default direction for next track as normally goes forward unless kicked back self.kickback_for_next_track = False # print 'init direction to False at begin of what_next_after showing', self.kickback_for_next_track # end trigger from input, or track count if self.end_trigger_signal is True or (self.track_count_limit > 0 and self.track_count == self.track_count_limit): self.end_trigger_signal = False # repeat so test start trigger if self.show_params['repeat'] == 'repeat': self.stop_timers() # print 'END TRIGGER restart' self.wait_for_trigger() else: # single run so exit show if self.level != 0: self.kickback_for_next_track = False self.subshow_kickback_signal = False self.end('normal', "End of single run - Return from Sub Show") else: # end of single run and at top - exit the show self.stop_timers() self.ending_reason = 'user-stop' Show.base_close_or_unload(self) # user wants to play child elif self.play_child_signal is True: self.play_child_signal = False index = self.medialist.index_of_track(self.child_track_ref) if index >= 0: # don't use select the track as need to preserve mediashow sequence for returning from child child_track = self.medialist.track(index) Show.write_stats(self, 'play child', self.show_params, child_track) self.display_eggtimer() self.enable_hint = False self.start_load_show_loop(child_track) else: self.mon.err( self, "Child not found in medialist: " + self.child_track_ref) self.ending_reason = 'error' Show.base_close_or_unload(self) # skip to next track on user input or after subshow elif self.next_track_signal is True: # print 'skip forward test' ,self.subshow_kickback_signal if self.next_track_signal is True or self.subshow_kickback_signal is False: self.next_track_signal = False self.kickback_for_next_track = False if self.medialist.at_end() is True: # medialist_at_end can give false positive for shuffle if self.show_params[ 'sequence'] == "ordered" and self.show_params[ 'repeat'] == 'repeat': self.wait_for_trigger() elif self.show_params[ 'sequence'] == "ordered" and self.show_params[ 'repeat'] == 'single-run': if self.level != 0: self.kickback_for_next_track = False self.subshow_kickback_signal = False # print 'end subshow skip forward test, self. direction is ' ,self.kickback_for_next_track self.end('normal', "Return from Sub Show") else: # end of single run and at top - exit the show self.stop_timers() self.ending_reason = 'user-stop' Show.base_close_or_unload(self) else: # shuffling - just do next track self.kickback_for_next_track = False self.medialist.next(self.show_params['sequence']) self.start_load_show_loop( self.medialist.selected_track()) else: # not at end just do next track self.medialist.next(self.show_params['sequence']) self.start_load_show_loop( self.medialist.selected_track()) # skip to previous track on user input or after subshow elif self.previous_track_signal is True or self.subshow_kickback_signal is True: # print 'skip backward test, subshow kickback is' ,self.subshow_kickback_signal self.subshow_kickback_signal = False self.previous_track_signal = False self.kickback_for_next_track = True # medialist_at_start can give false positive for shuffle if self.medialist.at_start() is True: # print 'AT START' if self.show_params[ 'sequence'] == "ordered" and self.show_params[ 'repeat'] == 'repeat': self.kickback_for_next_track = True self.wait_for_trigger() elif self.show_params[ 'sequence'] == "ordered" and self.show_params[ 'repeat'] == 'single-run': if self.level != 0: self.kickback_for_next_track = True self.subshow_kickback_signal = True # print 'end subshow skip forward test, self. direction is ' ,self.kickback_for_next_track self.end('normal', "Return from Sub Show") else: # end of single run and at top - exit the show self.stop_timers() self.ending_reason = 'user-stop' Show.base_close_or_unload(self) else: # shuffling - just do previous track self.kickback_for_next_track = True self.medialist.previous(self.show_params['sequence']) self.start_load_show_loop( self.medialist.selected_track()) else: # not at end just do next track self.medialist.previous(self.show_params['sequence']) self.start_load_show_loop(self.medialist.selected_track()) # AT END OF MEDIALIST elif self.medialist.at_end() is True: # print 'MEDIALIST AT END' # interval>0 and list finished so wait for the interval timer if self.show_params[ 'sequence'] == "ordered" and self.interval > 0 and self.interval_timer_signal == False: self.waiting_for_interval = True # print 'WAITING FOR INTERVAL' Show.base_shuffle(self) Show.base_track_ready_callback(self, False) self.poll_for_interval_timer = self.canvas.after( 200, self.what_next_after_showing) # interval=0 #elif self.show_params['sequence'] == "ordered" and self.show_params['repeat'] == 'repeat' and self.show_params['trigger-end-type']== 'interval' and int(self.show_params['trigger-end-param']) == 0: #self.medialist.next(self.show_params['sequence']) # self.start_load_show_loop(self.medialist.selected_track()) # shuffling so there is no end condition, get out of end test elif self.show_params['sequence'] == "shuffle": self.medialist.next(self.show_params['sequence']) self.start_load_show_loop(self.medialist.selected_track()) # nothing special to do at end of list, just repeat or exit elif self.show_params['sequence'] == "ordered": if self.show_params['repeat'] == 'repeat': self.wait_for_trigger() else: # single run # if not at top return to parent if self.level != 0: self.end('normal', "End of Single Run") else: # at top so close the show self.stop_timers() self.ending_reason = 'user-stop' Show.base_close_or_unload(self) else: self.mon.err( self, "Unhandled playing event at end of list: " + self.show_params['sequence'] + ' with ' + self.show_params['repeat'] + " of " + self.show_params['trigger-end-param']) self.end( 'error', "Unhandled playing event at end of list: " + self.show_params['sequence'] + ' with ' + self.show_params['repeat'] + " of " + self.show_params['trigger-end-param']) elif self.medialist.at_end() is False: # nothing special just do the next track self.medialist.next(self.show_params['sequence']) self.start_load_show_loop(self.medialist.selected_track()) else: # unhandled state self.mon.err( self, "Unhandled playing event: " + self.show_params['sequence'] + ' with ' + self.show_params['repeat'] + " of " + self.show_params['trigger-end-param']) self.end( 'error', "Unhandled playing event: " + self.show_params['sequence'] + ' with ' + self.show_params['repeat'] + " of " + self.show_params['trigger-end-param']) # ********************* # Interface with other shows/players to reduce black gaps # ********************* # called just before a track is shown to remove the previous track from the screen # and if necessary close it def track_ready_callback(self, enable_show_background): self.delete_eggtimer() # get control bindings for this show # needs to be done for each track as track can override the show controls if self.show_params['disable-controls'] == 'yes': self.controls_list = [] else: reason, message, self.controls_list = self.controlsmanager.get_controls( self.show_params['controls']) if reason == 'error': self.mon.err(self, message) self.end('error', "error in controls: " + message) return # print 'controls',reason,self.show_params['controls'],self.controls_list #merge controls from the track controls_text = self.current_player.get_links() reason, message, track_controls = self.controlsmanager.parse_controls( controls_text) if reason == 'error': self.mon.err( self, message + " in track: " + self.current_player.track_params['track-ref']) self.error_signal = True self.what_next_after_showing() self.controlsmanager.merge_controls(self.controls_list, track_controls) # enable the click-area that are in the list of controls self.sr.enable_click_areas(self.controls_list) Show.base_track_ready_callback(self, enable_show_background) # callback from begining of a subshow, provide previous player to called show def subshow_ready_callback(self): return Show.base_subshow_ready_callback(self) # ********************* # End the show # ********************* def end(self, reason, message): Show.base_end(self, reason, message) def stop_timers(self): # clear outstanding time of day events for this show # self.tod.clear_times_list(id(self)) if self.poll_for_interval_timer is not None: self.canvas.after_cancel(self.poll_for_interval_timer) self.poll_for_interval_timer = None if self.interval_timer is not None: self.canvas.after_cancel(self.interval_timer) self.interval_timer = None if self.duration_timer is not None: self.canvas.after_cancel(self.duration_timer) self.duration_timer = None
class MenuShow(Show): def __init__(self, show_id, show_params, root, canvas, showlist, pp_dir, pp_home, pp_profile, command_callback): """ show_id - index of the top level show caling this (for debug only) show_params - dictionary section for the menu canvas - the canvas that the menu is to be written on showlist - the showlist pp_dir - Pi Presents directory pp_home - Pi presents data_home directory pp_profile - Pi presents profile directory """ # init the common bits Show.base__init__(self, show_id, show_params, root, canvas, showlist, pp_dir, pp_home, pp_profile, command_callback) # instatiatate the screen driver - used only to access enable and hide click areas self.sr = ScreenDriver() self.controlsmanager = ControlsManager() # init variables self.show_timeout_timer = None self.track_timeout_timer = None self.next_track_signal = False self.next_track = None self.menu_index = 0 self.menu_showing = True self.req_next = '' self.last_menu_index = 0 self.return_to_zero = False def play(self, end_callback, show_ready_callback, parent_kickback_signal, level, controls_list): """ displays the menu end_callback - function to be called when the menu exits show_ready_callback - callback when menu is ready to display (not used) level is 0 when the show is top level (run from [start] or from show control) parent_kickback_signal - not used other than it being passed to a show """ # need to instantiate the medialist here as not using gapshow self.medialist = MediaList('ordered') Show.base_play(self, end_callback, show_ready_callback, parent_kickback_signal, level, controls_list) self.mon.trace(self, self.show_params['show-ref']) #parse the show and track timeouts reason, message, self.show_timeout = Show.calculate_duration( self, self.show_params['show-timeout']) if reason == 'error': self.mon.err( self, 'Show Timeout has bad time: ' + self.show_params['show-timeout']) self.end( 'error', 'show timeout, bad time: ' + self.show_params['show-timeout']) reason, message, self.track_timeout = Show.calculate_duration( self, self.show_params['track-timeout']) if reason == 'error': self.mon.err( self, 'Track Timeout has bad time: ' + self.show_params['track-timeout']) self.end( 'error', 'track timeout, bad time: ' + self.show_params['track-timeout']) # and delete eggtimer if self.previous_shower is not None: self.previous_shower.delete_eggtimer() # and display the menu self.do_menu_track() # ******************** # respond to inputs. # ******************** # exit received from another concurrent show def exit(self): self.stop_timers() Show.base_exit(self) # show timeout happened def show_timeout_stop(self): self.stop_timers() Show.base_show_timeout_stop(self) # terminate Pi Presents def terminate(self): self.stop_timers() Show.base_terminate(self) def handle_input_event(self, symbol): Show.base_handle_input_event(self, symbol) def handle_input_event_this_show(self, symbol): self.handle_show_control_event(symbol, self.show_control_controls) # menushow has only internal operation operation = self.base_lookup_control(symbol, self.controls_list) self.do_operation(operation) def do_operation(self, operation): # service the standard inputs for this show self.mon.trace(self, operation) if operation == 'exit': self.exit() elif operation == 'stop': self.stop_timers() if self.current_player is not None: if self.menu_showing is True and self.level != 0: # if quiescent then set signal to stop the show when track has stopped self.user_stop_signal = True self.current_player.input_pressed('stop') elif operation in ('up', 'down'): # stop show timeout if self.show_timeout_timer is not None: self.canvas.after_cancel(self.show_timeout_timer) # and start it again if self.show_timeout != 0: self.show_timeout_timer = self.canvas.after( self.show_timeout * 1000, self.show_timeout_stop) if operation == 'up': self.previous() else: next(self) elif operation == 'play': self.next_track_signal = True st = self.medialist.select_anon_by_index(self.menu_index) self.next_track = self.medialist.selected_track() self.current_player.stop() # cancel show timeout if self.show_timeout_timer is not None: self.canvas.after_cancel(self.show_timeout_timer) self.show_timeout_timer = None # stop current track (the menuplayer) if running or just start the next track if self.current_player is not None: self.current_player.input_pressed('stop') else: self.what_next_after_showing() elif operation in ('no-command', 'null'): return elif operation in ('pause', 'pause-on', 'pause-off', 'mute', 'unmute', 'go'): if self.current_player is not None: self.current_player.input_pressed(operation) elif operation[0:4] == 'omx-' or operation[ 0:6] == 'mplay-' or operation[0:5] == 'uzbl-': if self.current_player is not None: self.current_player.input_pressed(operation) def __next__(self): # remove highlight if self.current_player.__class__.__name__ == 'MenuPlayer': self.current_player.highlight_menu_entry(self.menu_index, False) self.medialist.next('ordered') if self.menu_index == self.menu_length - 1: self.menu_index = 0 else: self.menu_index += 1 # and highlight the new entry self.current_player.highlight_menu_entry(self.menu_index, True) def previous(self): # remove highlight if self.current_player.__class__.__name__ == 'MenuPlayer': self.current_player.highlight_menu_entry(self.menu_index, False) if self.menu_index == 0: self.menu_index = self.menu_length - 1 else: self.menu_index -= 1 self.medialist.previous('ordered') # and highlight the new entry self.current_player.highlight_menu_entry(self.menu_index, True) # ********************* # Sequencing # ********************* def track_timeout_callback(self): self.do_operation('stop') def do_menu_track(self): self.menu_showing = True self.mon.trace(self, '') # start show timeout alarm if required if self.show_timeout != 0: self.show_timeout_timer = self.canvas.after( self.show_timeout * 1000, self.show_timeout_stop) index = self.medialist.index_of_track( self.show_params['menu-track-ref']) if index == -1: self.mon.err( self, "'menu-track' not in medialist: " + self.show_params['menu-track-ref']) self.end( 'error', "menu-track not in medialist: " + self.show_params['menu-track-ref']) return #make the medialist available to the menuplayer for cursor scrolling self.show_params['medialist_obj'] = self.medialist # load the menu track self.start_load_show_loop(self.medialist.track(index)) # ********************* # Playing show or track loop # ********************* def start_load_show_loop(self, selected_track): # shuffle players Show.base_shuffle(self) self.mon.trace(self, '') self.display_eggtimer() # get control bindings for this show # needs to be done for each track as track can override the show controls if self.show_params['disable-controls'] == 'yes': self.controls_list = [] else: reason, message, self.controls_list = self.controlsmanager.get_controls( self.show_params['controls']) if reason == 'error': self.mon.err(self, message) self.end('error', "error in controls: " + message) return # load the track or show Show.base_load_track_or_show(self, selected_track, self.what_next_after_load, self.end_shower, False) # track has loaded (menu or otherwise) so show it. def what_next_after_load(self, status, message): if self.current_player.play_state == 'load-failed': self.req_next = 'error' self.what_next_after_showing() else: # get the calculated length of the menu for the loaded menu track if self.current_player.__class__.__name__ == 'MenuPlayer': if self.medialist.anon_length() == 0: self.req_next = 'error' self.what_next_after_showing() return #highlight either first or returning entry and select appropiate medialist entry if self.return_to_zero is True: # init the index used to hiighlight the selected menu entry by menuplayer self.menu_index = 0 # print 'initial index',self.menu_index else: self.menu_index = self.last_menu_index # print ' return to last ',self.menu_index self.menu_length = self.current_player.menu_length self.current_player.highlight_menu_entry(self.menu_index, True) self.mon.trace( self, ' - load complete with status: ' + status + ' message: ' + message) if self.show_timeout_signal is True or self.terminate_signal is True or self.exit_signal is True or self.user_stop_signal is True: self.what_next_after_showing() else: self.mon.trace(self, '') self.current_player.show(self.track_ready_callback, self.finished_showing, self.closed_after_showing) def finished_showing(self, reason, message): # showing has finished with 'pause at end', showing the next track will close it after next has started showing self.mon.trace(self, '') self.mon.log( self, "pause at end of showing track with reason: " + reason + ' and message: ' + message) self.sr.hide_click_areas(self.controls_list, self.canvas) if self.current_player.play_state == 'show-failed': self.req_next = 'error' else: self.req_next = 'finished-player' self.what_next_after_showing() def closed_after_showing(self, reason, message): # showing has finished with closing of player but track instance is alive for hiding the x_content self.mon.trace(self, '') self.mon.log( self, "Closed after showing track with reason: " + reason + ' and message: ' + message) self.sr.hide_click_areas(self.controls_list, self.canvas) if self.current_player.play_state == 'show-failed': self.req_next = 'error' else: self.req_next = 'closed-player' self.what_next_after_showing() # subshow or child show has ended def end_shower(self, show_id, reason, message): self.mon.log( self, self.show_params['show-ref'] + ' ' + str(self.show_id) + ': Returned from shower with ' + reason + ' ' + message) self.sr.hide_click_areas(self.controls_list, self.canvas) self.req_next = reason Show.base_end_shower(self) self.what_next_after_showing() # at the end of a track check for terminations else re-display the menu def what_next_after_showing(self): self.mon.trace(self, '') # cancel track timeout timer if self.track_timeout_timer is not None: self.canvas.after_cancel(self.track_timeout_timer) self.track_timeout_timer = None # need to terminate? if self.terminate_signal is True: self.terminate_signal = False # set what to do when closed or unloaded self.ending_reason = 'killed' Show.base_close_or_unload(self) elif self.req_next == 'error': self.req_next = '' # set what to do after closed or unloaded self.ending_reason = 'error' Show.base_close_or_unload(self) # show timeout elif self.show_timeout_signal is True: self.show_timeout_signal = False # set what to do when closed or unloaded self.ending_reason = 'show-timeout' Show.base_close_or_unload(self) # used by exit for stopping show from other shows. elif self.exit_signal is True: self.exit_signal = False self.ending_reason = 'exit' Show.base_close_or_unload(self) # user wants to stop elif self.user_stop_signal is True: self.user_stop_signal = False self.ending_reason = 'user-stop' Show.base_close_or_unload(self) elif self.next_track_signal is True: self.next_track_signal = False self.menu_showing = False # start timeout for the track if required if self.track_timeout != 0: self.track_timeout_timer = self.canvas.after( self.track_timeout * 1000, self.track_timeout_callback) self.last_menu_index = self.menu_index Show.write_stats(self, 'play', self.show_params, self.next_track) self.start_load_show_loop(self.next_track) else: # no stopping the show required so re-display the menu self.do_menu_track() # ********************* # Interface with other shows/players to reduce black gaps # ********************* # called just before a track is shown to remove the previous track from the screen # and if necessary close it def track_ready_callback(self, enable_show_background): self.delete_eggtimer() if self.show_params['disable-controls'] != 'yes': #merge controls from the track controls_text = self.current_player.get_links() reason, message, track_controls = self.controlsmanager.parse_controls( controls_text) if reason == 'error': self.mon.err( self, message + " in track: " + self.current_player.track_params['track-ref']) self.req_next = 'error' self.what_next_after_showing() self.controlsmanager.merge_controls(self.controls_list, track_controls) self.sr.enable_click_areas(self.controls_list, self.canvas) Show.base_track_ready_callback(self, enable_show_background) # callback from begining of a subshow, provide previous shower player to called show def subshow_ready_callback(self): return Show.base_subshow_ready_callback(self) # ********************* # Ending the show # ********************* def end(self, reason, message): self.stop_timers() Show.base_end(self, reason, message) def stop_timers(self): if self.track_timeout_timer is not None: self.canvas.after_cancel(self.track_timeout_timer) self.track_timeout_timer = None if self.show_timeout_timer is not None: self.canvas.after_cancel(self.show_timeout_timer) self.show_timeout_timer = None