Hi peoples,
I'm not sure if I'm doing something wrong here, or if it's a bug. I'm trying
to get a notification when a quicktime track finishes playing. The
documentation for NSNotificationCenter says:
notificationSelector
Selector that specifies the message the receiver sends notificationObserver to
notify it of the notification posting. The method the selector specifies must
have one and only one argument (an instance of NSNotification).
yet, if I use a selector that takes one argument, there is an error when the
NSNotificationCenter tries to notify me:
2010-04-24 12:06:49.587 macruby[5042:903] -[Player
track_finished_with_notifier]: unrecognized selector sent to instance
0x2002c3d40
On the other hand, if I give a selector that doesn't take any arguments at all,
it is in fact called by the NSNotificationCenter at the right moment.
I've included a quickly hacked up script that shows the problem at the end of
this message. I'm using macruby 0.5 on Snow Leopard, so maybe the bug (if it
is indeed a bug, and not an error on my part) is already fixed... To run the
script you'll have to replace Evanescence and Going Under with a group/track
that you have in your iTunes library...
Alli
#!/usr/local/bin/macruby
require 'rubygems'
require 'hotcocoa'
framework 'Cocoa'
framework 'QtKit'
include HotCocoa
class Player
def init
NSNotificationCenter.defaultCenter.addObserver(self, selector:
:track_finished, name:QTMovieDidEndNotification, object:nil)
NSNotificationCenter.defaultCenter.addObserver(self, selector:
:track_finished_with_notifier, name:QTMovieDidEndNotification, object:nil)
movie = getQtMovieFromArtist('Evanescence', track:'Going Under')
movie.volume = 30
movie.play
puts "playing..."
sleep(10)
self
end
def getQtMovieFromArtist( artist, track:track_name)
iTunesXMLPath = "#{NSHomeDirectory()}/Music/iTunes/iTunes Music
Library.xml"
iTunesData = NSDictionary.alloc.initWithContentsOfFile(iTunesXMLPath)
tracks = iTunesData.objectForKey('Tracks')
artist_db = tracks.find_all { |track| track[1]['Artist'] == artist}
track_db = artist_db.find{|track| track[1]['Name'] == track_name}
url = NSURL.URLWithString(track_db[1]['Location'])
errorptr = Pointer.new_with_type('@')
movie = QTMovie.movieWithURL(url, error:errorptr)
if (!movie)
error = errorptr[0]
puts "Error loading song: #{track_db[1]['Name']} #{error.code}
#{error.localizedDescription}"
end
movie
end
def track_finished
NSLog( "track finished!")
end
def track_finished_with_notifier(notifier)
NSLog("track finished with notifier #{notifier}")
end
end
class Application
def start
application :name => "Player" do |app|
app.delegate = self
Player.new
end
end
def on_new(sender)
Player.new
end
def on_close(sender)
w = NSApp.mainWindow
if w
w.performClose self
else
NSBeep()
end
end
def on_clear(sender)
w = NSApp.mainWindow
if w and w.respond_to?(:terminal)
w.terminal.clear
else
NSBeep()
end
end
end
Application.new.start
_______________________________________________
MacRuby-devel mailing list
[email protected]
http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
