src/scriptmanager.h

   1 /***************************************************************************
   2  *   Copyright (C) 2004-2007 by Mark Kretschmann <markey@web.de>           *
   3  *                      2005 by Seb Ruiz <ruiz@kde.org>                    *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.          *
  19  ***************************************************************************/
  20
  21 #ifndef AMAROK_SCRIPTMANAGER_H
  22 #define AMAROK_SCRIPTMANAGER_H
  23
  24 #include "engineobserver.h"   //baseclass
  25 #include "MainWindow.h"
  26 #include "ui_scriptmanagerbase.h"
  27
  28 #include <KDialog>      //baseclass
  29 #include <KUrl>
  30
  31 #include <QMap>
  32
  33
  34 class MetaBundle;
  35 class KArchiveDirectory;
  36 class K3Process;
  37 class K3ProcIO;
  38
  39
  40 /**
  41  * @class ScriptManager
  42  * @short Script management widget and backend
  43  * @author Mark Kretschmann <markey@web.de>
  44  *
  45  * Script notifications, sent to stdin:
  46  *   configure
  47  *   engineStateChange: {empty|idle|paused|playing}
  48  *   trackChange
  49  *   volumeChange: newVolume (range: 0-100)
  50  *   fetchLyrics: artist title
  51  *   fetchLyricsByUrl: url
  52  *
  53  * @see http://amarok.kde.org/amarokwiki/index.php/Script-Writing_HowTo
  54  */
  55
  56 class AMAROK_EXPORT ScriptManager : public KDialog, public EngineObserver
  57 {
  58     Q_OBJECT
  59
  60 //     friend class AmarokScriptNewStuff;
  61
  62     public:
  63         explicit ScriptManager( QWidget *parent = 0, const char *name = 0 );
  64         virtual ~ScriptManager();
  65
  66         static ScriptManager* instance() { return s_instance ? s_instance : new ScriptManager( MainWindow::self() ); }
  67
  68         /**
  69          * Runs the script with the given name. Used by the DCOP handler.
  70          * @param name The name of the script.
  71          * @return True if successful.
  72          */
  73         bool runScript( const QString& name, bool silent = false );
  74
  75         /**
  76          * Stops the script with the given name. Used by the DCOP handler.
  77          * @param name The name of the script.
  78          * @return True if successful.
  79          */
  80         bool stopScript( const QString& name );
  81
  82         /** Returns a list of all currently running scripts. Used by the DCOP handler. */
  83         QStringList listRunningScripts();
  84
  85        /** Custom Menu Click */
  86        void customMenuClicked( const QString& message );
  87
  88        /** Returns the path of the spec file of the given script */
  89        QString specForScript( const QString& name );
  90
  91        /** Return name of the lyrics script currently running, or QString::null if none */
  92        QString lyricsScriptRunning() const;
  93
  94        /** Returns a list of all lyrics scripts */
  95        QStringList lyricsScripts() const;
  96
  97        /** Sends a fetchLyrics notification to all scripts */
  98        void notifyFetchLyrics( const QString& artist, const QString& title );
  99
 100        /** Sends a fetchLyrics notification to retrieve lyrics from a specific page */
 101        void notifyFetchLyricsByUrl( const QString& url );
 102
 103        /** Return name of the transcode script currently running, or QString::null if none */
 104        QString transcodeScriptRunning() const;
 105
 106        /** Sends a transcode notification to all scripts */
 107        void notifyTranscode( const QString& srcUrl, const QString& filetype );
 108
 109        /** Return name of the scoring script currently running, or QString::null if none */
 110        QString scoreScriptRunning() const;
 111
 112        /** Returns a list of all scoring scripts */
 113        QStringList scoreScripts() const;
 114
 115         /** Asks the current score script to give a new score based on the parameters. */
 116        void requestNewScore( const QString &url, double prevscore, int playcount, int length, float percentage, const QString &reason );
 117
 118     signals:
 119         /** Emitted when the lyrics script changes, so that a lyrics retry can be made */
 120         void lyricsScriptChanged();
 121
 122     private slots:
 123         /** Finds all installed scripts and adds them to the listview */
 124         void findScripts();
 125
 126         /** Enables/disables the buttons */
 127         void slotCurrentChanged( QTreeWidgetItem* );
 128
 129         bool slotInstallScript( const QString& path = QString() );
 130         void slotRetrieveScript();
 131         void slotUninstallScript();
 132         bool slotRunScript( bool silent = false );
 133         void slotStopScript();
 134         void slotConfigureScript();
 135         void slotAboutScript();
 136         void slotShowContextMenu( const QPoint& );
 137
 138         void slotReceivedStdout( K3Process*, char*, int );
 139         void slotReceivedStderr( K3Process*, char*, int );
 140         void scriptFinished( K3Process* process );
 141
 142     private:
 143         /** Returns all scripts of the given \p type */
 144         QStringList scriptsOfType( const QString &type ) const;
 145
 146         /** Returns the first running script found of \p type */
 147         QString scriptRunningOfType( const QString &type ) const;
 148
 149         QString ensureScoreScriptRunning();
 150
 151         /** Terminates a process with SIGTERM and deletes the K3ProcIO object */
 152         void terminateProcess( K3ProcIO** proc );
 153
 154         /** Sends a string message to all running scripts */
 155         void notifyScripts( const QString& message );
 156
 157         /** Adds a script to the listview */
 158         void loadScript( const QString& path );
 159
 160         /** Copies the file permissions from the tarball and loads the script */
 161         void recurseInstall( const KArchiveDirectory* archiveDir, const QString& destination );
 162
 163         /** EngineObserver reimplementations **/
 164         void engineStateChanged( Engine::State state, Engine::State oldState = Engine::Empty );
 165         void engineNewMetaData( const MetaBundle& /*bundle*/, bool /*trackChanged*/ );
 166         void engineVolumeChanged( int newVolume );
 167
 168         /////////////////////////////////////////////////////////////////////////////////////
 169         // DATA MEMBERS
 170         /////////////////////////////////////////////////////////////////////////////////////
 171         static ScriptManager*  s_instance;
 172         Ui::ScriptManagerBase* m_gui;
 173
 174         QTreeWidgetItem*       m_generalCategory;
 175         QTreeWidgetItem*       m_lyricsCategory;
 176         QTreeWidgetItem*       m_scoreCategory;
 177         QTreeWidgetItem*       m_transcodeCategory;
 178         QTreeWidgetItem*       m_contextCategory;
 179
 180         bool                   m_installSuccess;
 181
 182         struct ScriptItem {
 183             KUrl             url;
 184             QString          type;
 185             K3ProcIO*         process;
 186             QTreeWidgetItem* li;
 187             QString          log;
 188             ScriptItem() : process( 0 ), li( 0 ) {}
 189         };
 190
 191         typedef QMap<QString, ScriptItem> ScriptMap;
 192
 193         ScriptMap m_scripts;
 194 };
 195
 196
 197 inline QStringList ScriptManager::lyricsScripts() const { return scriptsOfType( "lyrics" ); }
 198
 199 inline QString ScriptManager::lyricsScriptRunning() const { return scriptRunningOfType( "lyrics" ); }
 200
 201 inline QString ScriptManager::transcodeScriptRunning() const { return scriptRunningOfType( "transcode" ); }
 202
 203 inline QStringList ScriptManager::scoreScripts() const { return scriptsOfType( "score" ); }
 204
 205 inline QString ScriptManager::scoreScriptRunning() const { return scriptRunningOfType( "score" ); }
 206
 207 #endif /* AMAROK_SCRIPTMANAGER_H */
 208
 209