Re: notifications
Re: notifications
- Subject: Re: notifications
- From: Julio Cesar Silva dos Santos <email@hidden>
- Date: Mon, 21 May 2007 13:36:48 -0300
You don't need to use an AppleScript to get the current song's name.
Just use notification object of updateNow:
[currentTrackField setStringValue:[[notification userInfo]
objectForKey:@"name"]];
Of course you have to check if the userInfo dictionary is available.
Julio Cesar Silva dos Santos
email@hidden
Skype: jcssantos01
Blogjective-C
http://www.jcs.santos.nom.br/wp
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On May 21, 2007, at 11:24 AM, julien ricard wrote:
hi,
I'm doing a simple program with a window containing the name of the
currently played track in itunes. I can do it with some "update"
button" but I'd like the textfield in my window to be updated
automatically when the track changes. I could also have the
notification function in the controller class, but I'd like to keep it
as a separate module.
My controller class shown below initialize an object iTunesConnection
(iTunesConnection.h is also shown below), which has a method updateNow
to update its member currentSong.
What's the best way to get the notification from the iTunesConnection
object within the controller class?
thanks
julien
************************************************************
/* miPluginController.h */
#import <Cocoa/Cocoa.h>
#import "iTunesConnection.h"
@interface miPluginController : NSObject
{
IBOutlet NSTextField *currentTrackField;
}
@end
@implementation miPluginController
- (void)awakeFromNib
{
[currentTrackField setStringValue:@"None"];
iTunesConnection *connection;
connection = [[iTunesConnection alloc] init];
}
@end
************************************************************
************************************************************
//
// iTunesConnection.h
// MI_Plugin
//
// Created by jul on 5/21/07.
// Copyright 2007 __MyCompanyName__. All rights reserved.
//
#import <Cocoa/Cocoa.h>
#import <mach-o/dyld.h>
#import <Foundation/NSDistributedNotificationCenter.h>
#import <Foundation/NSString.h>
#import <AppKit/NSAppleScriptExtensions.h>
@interface iTunesConnection : NSObject
{
NSString *currentTrack;
}
- (id) init;
- (void) updateNow:(NSNotification *)notification;
- (void) updateCurrentTrackName;
- (NSString *) getcurrentTrack;
- (void) setCurrentTrack:(NSString *) curTrack;
@end
@implementation iTunesConnection
- (id) init {
[self setCurrentTrack: @"None"];
NSDistributedNotificationCenter *nc =
[NSDistributedNotificationCenter defaultCenter];
[nc addObserver:self
selector:@selector(updateNow:)
name:@"com.apple.iTunes.playerInfo"
object:nil];
return self;
}
- (void) updateNow:(NSNotification *)notification {
[self updateCurrentTrackName];
//NSLog([self getCurrentTrack]);
}
-(void) updateCurrentTrackName {
NSString *updateScript = [NSString stringWithFormat:@"tell
application \"iTunes\"\nname of current track\nend tell"];
NSAppleScript *iChatGetStatusScript =
[[NSAppleScript alloc] initWithSource: updateScript];
NSAppleEventDescriptor *resultDescriptor =
[iChatGetStatusScript executeAndReturnError:Nil];
NSData *rawData = [resultDescriptor data];
[self setCurrentTrack:[NSString stringWithCharacters:[rawData
bytes] length: [rawData length] / sizeof(unichar)]];
}
-(NSString *) getCurrentTrack {
return currentTrack;
}
- (void) setCurrentTrack:(NSString *) curTrack {
currentTrack=curTrack;
}
@end
************************************************************
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| References: | |
| | >notifications (From: "julien ricard" <email@hidden>) |