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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<html>
<head>
<!-- BEGIN META TAG INFO -->
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="home" href="http://developer.apple.com/">
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<link rel="stylesheet" type="text/css" href="../../documentation/css/adcstyle.css" title="fonts">
<script language="JavaScript" src="../../documentation/js/adc.js" type="text/javascript"></script>
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<title>AttachAScript - /TAttachedScripts.m</title>
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<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html">Reference Library</a> > <a href="../../samplecode/index.html">Sample Code</a> > <a href="../../samplecode/ScriptingAutomation/index.html">Scripting & Automation</a> > <a href="../../samplecode/ScriptingAutomation/idxCocoa-date.html">Cocoa</a> > <A HREF="javascript:location.replace('index.html');">AttachAScript</A> >
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<table width="680" border="0" cellpadding="0" cellspacing="0">
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<td><h1><div id="pagehead">AttachAScript</div></h1></td>
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<h2>/TAttachedScripts.m</h2>
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<p><strong>View Source Code:</strong>
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<option value="listing1.html">/AEDescUtils.h</option>
<option value="listing2.html">/AEDescUtils.m</option>
<option value="listing3.html">/AttachedScripts.applescript</option>
<option value="listing4.html">/main.m</option>
<option value="listing5.html">/MyController.h</option>
<option value="listing6.html">/MyController.m</option>
<option value="listing7.html">/ReadMe.txt</option>
<option value="listing8.html">/TAttachedScripts.h</option>
<option value="listing9.html">/TAttachedScripts.m</option>
<option value="listing10.html">/TCallScript.h</option>
<option value="listing11.html">/TCallScript.m</option></select>
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<p><strong><a href="AttachAScript.zip">Download Sample</a></strong> (“AttachAScript.zip”, 264.6K)<BR>
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<!--googleon: index -->
<pre class="sourcecodebox">/*
File: TAttachedScripts.m
Abstract: a subclass of the TCallScript class providing
an Objective-C interface to the handlers defined in the
AttachedScripts.scpt file
Version: 1.0
(c) Copyright 2006 Apple Computer, Inc. All rights reserved.
IMPORTANT: This Apple software is supplied to
you by Apple Computer, Inc. ("Apple") in
consideration of your agreement to the following
terms, and your use, installation, modification
or redistribution of this Apple software
constitutes acceptance of these terms. If you do
not agree with these terms, please do not use,
install, modify or redistribute this Apple
software.
In consideration of your agreement to abide by
the following terms, and subject to these terms,
Apple grants you a personal, non-exclusive
license, under Apple's copyrights in this
original Apple software (the "Apple Software"),
to use, reproduce, modify and redistribute the
Apple Software, with or without modifications, in
source and/or binary forms; provided that if you
redistribute the Apple Software in its entirety
and without modifications, you must retain this
notice and the following text and disclaimers in
all such redistributions of the Apple Software.
Neither the name, trademarks, service marks or
logos of Apple Computer, Inc. may be used to
endorse or promote products derived from the
Apple Software without specific prior written
permission from Apple. Except as expressly
stated in this notice, no other rights or
licenses, express or implied, are granted by
Apple herein, including but not limited to any
patent rights that may be infringed by your
derivative works or by other works in which the
Apple Software may be incorporated.
The Apple Software is provided by Apple on an "AS
IS" basis. APPLE MAKES NO WARRANTIES, EXPRESS OR
IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING
THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE
OR IN COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY
SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE,
REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF
THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER
UNDER THEORY OF CONTRACT, TORT (INCLUDING
NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN
IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
*/
#import "TAttachedScripts.h"
#import "AEDescUtils.h"
/* RemotePlayerState is an aggregate of status information returned
by the getRemotePlayerState method defined in the TAttachedScripts
class below */
@implementation RemotePlayerState
-(id)init {
if ((self = [super init]) != nil) {
[self setIsPlaying: NO];
[self setTheTrack:@""];
[self setThePlaylist:@""];
[self setPositionInTrack:0];
[self setTrackDuration:0];
[self setPlayerStatusString:@""];
[self setPlayerVolume: 0];
}
return self;
}
-(void) dealloc {
[self setTheTrack:nil];
[self setThePlaylist:nil];
[self setPlayerStatusString:nil];
[super dealloc];
}
- (BOOL)isPlaying {
return isPlaying;
}
- (void)setIsPlaying:(BOOL)value {
if (isPlaying != value) {
isPlaying = value;
}
}
- (NSString *)theTrack {
return [[theTrack retain] autorelease];
}
- (void)setTheTrack:(NSString *)value {
if (theTrack != value) {
[theTrack release];
theTrack = [value copy];
}
}
- (NSString *)thePlaylist {
return [[thePlaylist retain] autorelease];
}
- (void)setThePlaylist:(NSString *)value {
if (thePlaylist != value) {
[thePlaylist release];
thePlaylist = [value copy];
}
}
- (int)positionInTrack {
return positionInTrack;
}
- (void)setPositionInTrack:(int)value {
if (positionInTrack != value) {
positionInTrack = value;
}
}
- (int)trackDuration {
return trackDuration;
}
- (void)setTrackDuration:(int)value {
if (trackDuration != value) {
trackDuration = value;
}
}
- (NSString *)playerStatusString {
return [[playerStatusString retain] autorelease];
}
- (void)setPlayerStatusString:(NSString *)value {
if (playerStatusString != value) {
[playerStatusString release];
playerStatusString = [value copy];
}
}
- (int)playerVolume {
return playerVolume;
}
- (void)setPlayerVolume:(int)value {
if (playerVolume != value) {
playerVolume = value;
}
}
@end
@implementation TAttachedScripts
/* HookUpToRemoteMachine
our app calls this script at application startup time. In this handler
we present the url selection dialog allowing the user to select
a remote machine where the iTunes application we want to control
is running. We store the remote machine address in the script's
property 'theRemoteURL' that is used by all of the other handlers
to direct commands to the iTunes app. This handler returns an
integer value (1 or 0) indicating success or failure. */
- (id) init {
/* create an NSURL to our scripts file */
NSBundle* bundle = [NSBundle mainBundle];
NSURL *scriptURL = [[NSURL alloc] initFileURLWithPath:[bundle pathForResource:@"AttachedScripts" ofType:@"scpt"]];
/* attempt to load thes scripts file */
if ([self initWithURLToCompiledScript:scriptURL] != nil) {
/* if we loaded the scripts file, attempt to hook up to the remote host */
if ( 0 == [[self callHandler:@"HookUpToRemoteMachine" withParameters:nil] int32Value] ) {
return nil;
}
}
return self;
}
/* ReportRemoteVolume
This handler calls the remote iTunes application to obtain the current
volume setting - an integer value between 0 and 100. NOTE: this
is the volume setting inside of iTunes and it is not the same
as the output volume setting for the entire remote machine. */
- (int) remoteVolume {
int theVolume;
/* call the AppleScript handler ReportRemoteVolume to retrieve the current
volume setting for the named playlist. */
theVolume = [[self callHandler:@"ReportRemoteVolume" withParameters:nil] int32Value];
/* return the volume setting value */
return theVolume;
}
/* SetRemoteVolume
This handler calls the remote iTunes application to obtain the current
volume setting - an integer value between 0 and 100. NOTE: this
is the volume setting inside of iTunes and it is not the same
as the output volume setting for the entire remote machine. */
-(void) setRemoteVolume: (int) newVolume {
/* Call the AppleScript SetRemoteVolume handler to change the volume setting */
[self callHandler:@"SetRemoteVolume" withParameters:
[NSNumber numberWithLong:newVolume], nil];
}
/* updatePlayerStatus calls the AppleScript handler ReportRemotePlayerState that
returns a seven member list of items containing the following information: */
enum {
kIsPlaying = 1, /* player state (playing=1, not playing = 0) */
kCurrentPlaylist = 2, /* name of current playlist (only if playing) */
kCurrentTrack = 3, /* name of current track (only if playing) */
kPlayerPosition = 4, /* player position (seconds from start of track, only if playing) */
kTrackDuration = 5, /* duration of current track (total seconds in track, only if playing) */
kPlayerStatusDescription = 6, /* a text string describing the player's state */
kSoundVolume = 7 /* sound volume (0 thru 100) */
};
/* ReportRemotePlayerState
This handler calls the remote iTunes application to obtain the current
status of the player - a list of seven elements including
playing (0 or 1), playlist, track, position, duration,
statusstr, and volume . */
- (RemotePlayerState*) getRemotePlayerState {
RemotePlayerState *statusInfo;
/* call ReportRemotePlayerState to retrieve the remote player's status */
NSAppleEventDescriptor* playerInfo = [self callHandler:@"ReportRemotePlayerState"
withParameters:nil];
/* allocate a new status object */
statusInfo = [[[RemotePlayerState alloc] init] autorelease];
/* save our remote player state information into the status object */
[statusInfo setIsPlaying: ([[playerInfo descriptorAtIndex:kIsPlaying] int32Value] != 0) ];
/* track/playlist names */
[statusInfo setTheTrack: [[playerInfo descriptorAtIndex:kCurrentTrack] stringValue] ];
[statusInfo setThePlaylist: [[playerInfo descriptorAtIndex:kCurrentPlaylist] stringValue] ];
/* track position information */
[statusInfo setPositionInTrack: [[playerInfo descriptorAtIndex:kPlayerPosition] int32Value] ];
[statusInfo setTrackDuration: [[playerInfo descriptorAtIndex:kTrackDuration] int32Value] ];
/* overall status description string */
[statusInfo setPlayerStatusString: [[playerInfo descriptorAtIndex:kPlayerStatusDescription] stringValue] ];
/* player volume */
[statusInfo setPlayerVolume: [[playerInfo descriptorAtIndex:kSoundVolume] int32Value] ];
/* return the status information */
return statusInfo;
}
/* GongCurrentTrack is called when the user clicks on the
gong button. This handler disables the track that is currently
playing and skips ahead to the next track. If the player is not
playing, this handler does nothing. */
-(void) gongCurrentTrack {
/* call the GongCurrentTrack handler */
[self callHandler:@"GongCurrentTrack" withParameters:nil];
}
/* SwitchRemotePlayerState is called when the user clicks on the
play/pause button. This routine simply turns the remote player on
or off. */
- (void) setRemotePlayerState:(BOOL) playerState {
/* call the SwitchRemotePlayerState AppleScript handler to set the new player state */
[self callHandler:@"SwitchRemotePlayerState" withParameters:
[NSNumber numberWithLong:( playerState ? 1 : 0 )], nil];
}
/* GoToNextTrack is called when the user clicks on the
skip ahead button. This routine advances the player to the
next track. */
- (void) goToNextTrack {
/* call the GoToNextTrack AppleScript handler */
[self callHandler:@"GoToNextTrack" withParameters:nil];
}
/* GoToPreviousTrack is called when the user clicks on the
skip back button. This routine asks the player to go back
to the previous track. */
- (void) goToPreviousTrack {
/* call the GoToPreviousTrack AppleScript handler */
[self callHandler:@"GoToPreviousTrack" withParameters:nil];
}
/* getPlaylists is called during program startup to retrieve
a list of the names of all of all of the playlists on the remote machine. */
- (NSArray*) getPlaylists {
return [[self callHandler:@"GetPlaylistListing" withParameters:nil]
listOfStringsToSortedArray];
}
/* PlayTrackFromPlaylist is when the user double clicks on a track name
in the track list. This handler receives a playlist name and the name of
the track and it asks the player to play that track. */
- (void) playTrack: (NSString*) trackName fromPlaylist:(NSString*) playlistName {
/* ask the remote iTunes app to play the selected track. */
[self callHandler:@"PlayTrackFromPlaylist" withParameters: playlistName, trackName, nil];
}
/* GetPlaylistTracks is called when ever the user clicks on a new playlist
name in the list of displayed playlists. Here we return a list containing
all of the names of the tracks in the selected playlist. */
- (NSArray*) getTracksForPlaylist: (NSString*) playlistName {
NSArray* theTracks;
/* call the remote host to obtain a list of tracks in the named playlist. */
theTracks = [[self callHandler:@"GetPlaylistTracks" withParameters:playlistName, nil]
listOfStringsToSortedArray];
/* return the track names */
return theTracks;
}
/* GetPlaylistShuffle returns an integer value (0 or 1) reflecting
the status of the shuffle setting for the named playlist. */
- (int) getShuffleForPlaylist: (NSString*) playlistName {
int shuffleSetting;
/* call the AppleScript handler GetPlaylistShuffle to retrieve the current
shuffle setting for the named playlist. */
shuffleSetting = [[self callHandler:@"GetPlaylistShuffle" withParameters:playlistName, nil]
int32Value];
/* return the shuffle setting value */
return shuffleSetting;
}
/* SetPlaylistShuffle changes the current shuffle setting for
the named playlist to shuffleSetting. shuffleSetting should
be an integer value of either 0 (for off) or 1 (for on). */
- (void) setShuffle: (int) shuffleSetting forPlaylist: (NSString*) playlistName {
/* call the AppleScript SetPlaylistShuffle handler to set the new shuffle setting. */
[self callHandler:@"SetPlaylistShuffle" withParameters:playlistName,
[NSNumber numberWithLong:shuffleSetting], nil];
}
/* GetPlaylistRepeat returns an integer value of 0, for repeat off,
1, for repeat all, or 2, for repeat one, reflecting the state of
the repeat setting for the named playlist. */
- (int) getRepeatForPlaylist: (NSString*) playlistName {
int repeatSetting;
/* call the GetPlaylistRepeat handler in the AppleScript to find out the current setting */
repeatSetting = [[self callHandler:@"GetPlaylistRepeat" withParameters:playlistName, nil] int32Value];
/* return the repeat setting value */
return repeatSetting;
}
/* SetPlaylistRepeat is called to change the repeat setting
for the named playlist. repeatSetting should be a either
0, 1 or 2 representing 'repeat off', 'repeat all', or
'repeat one' respectively. */
- (void) setRepeat: (int) repeatSetting forPlaylist: (NSString*) playlistName {
/* call the SetPlaylistRepeat AppleScript handler to set the new repeat setting */
[self callHandler:@"SetPlaylistRepeat" withParameters:playlistName,
[NSNumber numberWithLong:repeatSetting], nil];
}
@end
</pre>
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