dan@367: /*
dan@367:     iTunes connection for
dan@367:     Sonic Visualiser
dan@367:     An audio file viewer and annotation editor.
dan@367:     Centre for Digital Music, Queen Mary, University of London.
dan@367:     This file copyright 2010 Dan Stowell and QMUL.
dan@367:     
dan@367:     This program is free software; you can redistribute it and/or
dan@367:     modify it under the terms of the GNU General Public License as
dan@367:     published by the Free Software Foundation; either version 2 of the
dan@367:     License, or (at your option) any later version.  See the file
dan@367:     COPYING included with this distribution for more information.
dan@367: */
dan@367: 
dan@367: #include "svitunes.h"
dan@367: 
dan@367: #include <Foundation/NSAppleScript.h>
dan@367: 
dan@367: #import <Foundation/Foundation.h>
dan@367: 
dan@383: #include <iostream>
dan@383: #include <cstdio>
dan@383: 
dan@383: // private helpful function:
dan@367: QString qt_mac_NSStringToQString(const NSString *nsstr)
dan@367: {
dan@367:     NSRange range;
dan@367:     range.location = 0;
dan@367:     range.length = [nsstr length];
dan@367:      
dan@367:     unichar *chars = new unichar[range.length + 1];
dan@367:     chars[range.length] = 0;
dan@367:     [nsstr getCharacters:chars range:range];
dan@367:     QString result = QString::fromUtf16(chars, range.length);
dan@367:     delete chars;
dan@367:     return result;
dan@367: }
dan@367: 
dan@381: QStringList ITunesSVRemote::getNowPlaying(){
dan@367:     NSDictionary *errorDict;
dan@367:     NSAppleScript *scriptObject = [[NSAppleScript alloc]    initWithSource:@" \
dan@367: tell application \"System Events\" to set iTunesIsRunning to (name of processes) contains \"iTunes\" \n\
dan@367: if iTunesIsRunning is false then return \"\" \n\
dan@368: \
dan@368: tell application \"iTunes\" \n\
dan@368:     if player state is not stopped then \n\
dan@368:         set aTrack to current track \n\
dan@368:     else \n\
dan@368:         set sel to selection \n\
dan@368:         if sel is not {} then --and (length of sel) is 1 then \n\
dan@368:             set aTrack to item 1 of sel \n\
dan@368:         else \n\
dan@368:             return \"\" \n\
dan@368:         end if \n\
dan@368:     end if \n\
dan@368:     \
dan@370:     return the POSIX path of (location of aTrack as text) & \"\n\" & (genre of aTrack) \n\
dan@368: end tell \n\
dan@368: "
dan@367:     ];
dan@367:     
dan@367:     NSLog([scriptObject source]);
dan@367:     
dan@367:     [scriptObject compileAndReturnError: &errorDict];
dan@367:     
dan@367:     if(![scriptObject isCompiled]){
dan@367:         NSLog(@"SV ERROR: applescript object not compiled");
dan@367:         NSLog([errorDict description]);
dan@367:     }
dan@367:     
dan@367:     NSAppleEventDescriptor *eventDesc = [scriptObject executeAndReturnError: &errorDict];
dan@367:     NSString *nsResultString = [eventDesc stringValue];
dan@367:     
dan@367:     QString resultString = qt_mac_NSStringToQString(nsResultString);
dan@367:     
dan@367:     [scriptObject release];
dan@370:     return resultString.split(QChar('\n'));
dan@367: }
dan@383: 
dan@383: void ITunesSVRemote::updatePlayerState(){
dan@383:     NSDictionary *errorDict;
dan@383:     NSAppleScript *scriptObject = [[NSAppleScript alloc]    initWithSource:@" \
dan@383: tell application \"System Events\" to set iTunesIsRunning to (name of processes) contains \"iTunes\" \n\
dan@383: if iTunesIsRunning is false then return \"\" \n\
dan@383: \
dan@383: tell application \"iTunes\" \n\
dan@383: 	if player state is not playing then \n\
dan@383: 		set playpos to 0 \n\
dan@383: 	else \n\
dan@383: 		set playpos to player position \n\
dan@383: 	end if \n\
dan@383:     \
dan@383:     return (player state as text) & \"\n\" & (playpos) \n\
dan@383: end tell \n\
dan@383: "
dan@383:     ];
dan@383:     
dan@383:     NSLog([scriptObject source]);
dan@383:     
dan@383:     [scriptObject compileAndReturnError: &errorDict];
dan@383:     
dan@383:     if(![scriptObject isCompiled]){
dan@383:         NSLog(@"SV ERROR: applescript object not compiled");
dan@383:         NSLog([errorDict description]);
dan@383:     }
dan@383:     
dan@383:     NSAppleEventDescriptor *eventDesc = [scriptObject executeAndReturnError: &errorDict];
dan@383:     NSString *nsResultString = [eventDesc stringValue];
dan@383:     
dan@383:     QString resultString = qt_mac_NSStringToQString(nsResultString);
dan@383:     
dan@383:     if(resultString==""){
dan@383:         m_playerState = STATE_CLOSED;
dan@383:             std::cerr << "ITunesSVRemote::updatePlayerState() IT IS CLOSED" << std::endl;
dan@383:     }else{
dan@383:         QStringList results = resultString.split(QChar('\n'));
dan@383:         
dan@383:         if(results.size() != 2){
dan@383:             std::cerr << "ITunesSVRemote::updatePlayerState() ERROR: results not in expected format:" 
dan@383:                        << resultString.toStdString() << std::endl;
dan@383:             [scriptObject release];
dan@383:             return;
dan@383:         }
dan@383:         
dan@383:         if(results[0]=="playing")
dan@383:             m_playerState = STATE_PLAYING;
dan@383:         else if(results[0]=="paused")
dan@383:             m_playerState = STATE_PAUSED;
dan@383:         else if(results[0]=="stopped")
dan@383:             m_playerState = STATE_STOPPED;
dan@383:         else if(results[0]=="fast forwarding")
dan@383:             m_playerState = STATE_FASTFORWARDING;
dan@383:         else if(results[0]=="rewinding")
dan@383:             m_playerState = STATE_REWINDING;
dan@383: 
dan@383:         if(m_playerState == STATE_PLAYING){
dan@383:             // store a record of the current playback position
dan@383:             m_playerPos = results[1].toInt();
dan@383:             std::cerr << "ITunesSVRemote::updatePlayerState() got playback position as " 
dan@383:                         << m_playerPos << std::endl;
dan@383:         }
dan@383:     }
dan@383:     
dan@383:     [scriptObject release];
dan@383: }
dan@383: 
dan@383: bool ITunesSVRemote::isRunning(){
dan@383:     return (m_playerState != STATE_UNKNOWN) && (m_playerState != STATE_CLOSED);
dan@383: }
dan@383: 
dan@383: bool ITunesSVRemote::isPlaying(){
dan@383:     return (m_playerState == STATE_PLAYING);
dan@383: }
dan@383: 
dan@383: unsigned int ITunesSVRemote::playerPos(){
dan@383:     return m_playerPos;
dan@383: }