Allow deleting of script resolvers and removal from pipeline

include/tomahawk/tomahawkapp.h

@@ -67,6 +67,7 @@ public:
 #endif
 
     void addScriptResolver( const QString& scriptPath );
+    void removeScriptResolver( const QString& scriptPath );
     
 signals:
     void settingsChanged();

src/scriptresolver.cpp

@@ -21,6 +21,11 @@ ScriptResolver::ScriptResolver(const QString& exe) :
     m_proc.start( m_cmd );
 }
 
+ScriptResolver::~ScriptResolver()
+{
+    Tomahawk::Pipeline::instance()->removeResolver( this );
+}
+
 
 void ScriptResolver::readStderr()
 {

src/scriptresolver.h

@@ -15,7 +15,8 @@ class ScriptResolver : public Tomahawk::Resolver
 Q_OBJECT
 public:
     explicit ScriptResolver(const QString& exe);
-
+    virtual ~ScriptResolver();
+    
     virtual QString name() const            { return m_name; }
     virtual unsigned int weight() const     { return m_weight; }
     virtual unsigned int preference() const { return m_preference; }
@@ -23,6 +24,7 @@ public:
 
     virtual void resolve( const QVariant& v );
 
+    QString exe() const { return m_cmd; }
 signals:
 
 public slots:

src/settingsdialog.cpp

@@ -348,7 +348,10 @@ SettingsDialog::removeScriptResolver()
 {
     // only one selection
     if( !ui->scriptList->selectedItems().isEmpty() ) {
+        QString resolver = ui->scriptList->selectedItems().first()->data( 1, Qt::DisplayRole ).toString();
         delete ui->scriptList->takeTopLevelItem( ui->scriptList->indexOfTopLevelItem( ui->scriptList->selectedItems().first() ) );
+        
+        TomahawkApp::instance()->removeScriptResolver( resolver );
     }
 }
 

src/tomahawkapp.cpp

@@ -333,6 +333,19 @@ TomahawkApp::addScriptResolver( const QString& path )
     m_scriptResolvers << new ScriptResolver( path );
 }
 
+void
+TomahawkApp::removeScriptResolver( const QString& path )
+{
+    foreach( ScriptResolver* r, m_scriptResolvers ) {
+        if( r->exe() == path ) {
+            m_scriptResolvers.removeAll( r );
+            
+            delete r;
+            return;
+        }
+    }
+}
+
 void
 TomahawkApp::initLocalCollection()
 {