Remove LinkGeneratorPlugins from LinkGenerator on destruction

src/libtomahawk/utils/LinkGenerator.cpp

@@ -72,6 +72,13 @@ void LinkGenerator::addPlugin( LinkGeneratorPlugin* plugin )
 }
 
 
+void
+LinkGenerator::removePlugin( LinkGeneratorPlugin* plugin )
+{
+    m_plugins.removeAll( plugin );
+}
+
+
 void
 LinkGenerator::copyScriptJobResultToClipboard( const QVariantMap& data )
 {

src/libtomahawk/utils/LinkGenerator.h

@@ -41,6 +41,7 @@ public:
     virtual ~LinkGenerator();
 
     void addPlugin( LinkGeneratorPlugin* plugin );
+    void removePlugin( LinkGeneratorPlugin* plugin );
 
     // TODO: openLink(QString, QString, QString) is a rather annoying special case. Can we get rid of it?
     ScriptJob* openLink( const QString& title, const QString& artist, const QString& album ) const

src/libtomahawk/utils/LinkGeneratorPlugin.cpp

@@ -17,6 +17,8 @@
  */
 #include "LinkGeneratorPlugin.h"
 
+#include "LinkGenerator.h"
+
 #include "../Query.h"
 #include "../Track.h"
 #include "../Artist.h"
@@ -24,6 +26,8 @@
 
 Tomahawk::Utils::LinkGeneratorPlugin::~LinkGeneratorPlugin()
 {
+    // do this on destroyed() if you ever make this a QObject
+    LinkGenerator::instance()->removePlugin( this );
 }