Adding Song Notifiers on Song Load?

[shawhan]

hey guys,

this must be an easy question, but i can’t seem to find any examples.

i’m basically trying to add notifiers to renoise.song() as soon as renoise loads - but this fails if you put it in the main part of the tool code (i.e. when you load renoise, i assume that there is no song loaded yet, and thus renoise.song() doesn’t exist).

so my question is, where can i add these notifiers so they are initialized as soon as the song loads? tried looking for a song_loaded observable or similar but couldn’t find it.

any tips appreciated!

thanks,

shaw-han

[afta8]

Try this code at the start of your script, there are probably better ways to do it but this works for me.

  
-- Notifier handler functions  
local notifier = {}  
  
 function notifier.add(observable, n_function)  
 if not observable:has_notifier(n_function) then  
 observable:add_notifier(n_function)  
 end  
 end  
  
 function notifier.remove(observable, n_function)  
 if observable:has_notifier(n_function) then  
 observable:remove_notifier(n_function)  
 end  
 end  
  
  
-- Set up song opening & closing observables  
local new_doc_observable = renoise.tool().app_new_document_observable  
local close_doc_observable = renoise.tool().app_release_document_observable  
  
  
-- Set up notifier functions that are called when song opened or closed  
local function open_song()  
 print("A new song was opened")  
end  
  
local function close_song()  
 print("Song was closed")  
end  
  
  
-- Add the notifiers  
notifier.add(new_doc_observable, open_song)  
notifier.add(close_doc_observable, close_song)  
  
  

[shawhan]

Try this code at the start of your script, there are probably better ways to do it but this works for me.

  
-- Notifier handler functions  
local notifier = {}  
  
 function notifier.add(observable, n_function)  
 if not observable:has_notifier(n_function) then  
 observable:add_notifier(n_function)  
 end  
 end  
  
 function notifier.remove(observable, n_function)  
 if observable:has_notifier(n_function) then  
 observable:remove_notifier(n_function)  
 end  
 end  
  
  
-- Set up song opening & closing observables  
local new_doc_observable = renoise.tool().app_new_document_observable  
local close_doc_observable = renoise.tool().app_release_document_observable  
  
  
-- Set up notifier functions that are called when song opened or closed  
local function open_song()  
 print("A new song was opened")  
end  
  
local function close_song()  
 print("Song was closed")  
end  
  
  
-- Add the notifiers  
notifier.add(new_doc_observable, open_song)  
notifier.add(close_doc_observable, close_song)  
  
  

ah great! new_doc_observable is what i was searching for.

thanks!

sh