Allow to set icon and text for externally added generic page items without instantiating them (aka fix lazy loading for vsxu widget)

src/libtomahawk/ViewManager.cpp

@@ -924,18 +924,18 @@ ViewManager::dynamicPageWidget( const QString& pageName ) const
 
 
 void
-ViewManager::addDynamicPage(const QString& pageName, ViewPage* page )
+ViewManager::addDynamicPage( const QString& pageName, const QString& text, const QIcon& icon, boost::function<Tomahawk::ViewPage*()> instanceLoader )
 {
     tLog() << Q_FUNC_INFO << "Trying to add " << pageName;
 
-    if( dynamicPageWidget( pageName ) )
+    if( m_dynamicPages.contains( pageName ) )
     {
         tLog() << "Not adding a second ViewPage with name " << pageName;
         Q_ASSERT( false );
     }
 
-    m_dynamicPages.insert( pageName, page );
+    m_dynamicPagesInstanceLoaders.insert( pageName, instanceLoader );
-    emit viewPageAdded( pageName );
+    emit viewPageAdded( pageName, text, icon );
 }
 
 
@@ -944,6 +944,18 @@ ViewManager::showDynamicPage( const QString& pageName )
 {
     tLog() << Q_FUNC_INFO << "pageName: " << pageName;
 
+    if( !m_dynamicPages.contains( pageName ) )
+    {
+        if( !m_dynamicPagesInstanceLoaders.contains( pageName ) )
+        {
+           tLog() << "Trying to show a page that does not exist and does not have a registered loader";
+           Q_ASSERT(false);
+           return 0;
+        }
+        m_dynamicPages.insert( pageName, m_dynamicPagesInstanceLoaders.value( pageName )() );
+        m_dynamicPagesInstanceLoaders.remove( pageName );
+    }
+
     return show( dynamicPageWidget( pageName ) );
 }
 

src/libtomahawk/ViewManager.h

@@ -20,16 +20,19 @@
 #ifndef VIEWMANAGER_H
 #define VIEWMANAGER_H
 
-#include <QObject>
-#include <QHash>
-#include <QStackedWidget>
-
 #include "Artist.h"
 #include "collection/Collection.h"
 #include "PlaylistInterface.h"
 #include "playlist/QueueView.h"
 #include "ViewPage.h"
 
+#include <QObject>
+#include <QHash>
+#include <QStackedWidget>
+
+// best regards to you, mr. pimple aka xhochy :)
+#include <boost/function.hpp>
+
 #include "DllMacro.h"
 
 class AnimatedSplitter;
@@ -137,7 +140,7 @@ signals:
     void historyBackAvailable( bool avail );
     void historyForwardAvailable( bool avail );
 
-    void viewPageAdded( const QString& pageName );
+    void viewPageAdded( const QString& pageName, const QString& text, const QIcon& icon );
 
 public slots:
     Tomahawk::ViewPage* showSuperCollection();
@@ -148,7 +151,7 @@ public slots:
     Tomahawk::ViewPage* showInboxPage();
     Tomahawk::ViewPage* showNetworkActivityPage();
 
-    void addDynamicPage( const QString& pageName, Tomahawk::ViewPage* page );
+    void addDynamicPage( const QString& pageName, const QString& text, const QIcon& icon, boost::function< Tomahawk::ViewPage*() > instanceLoader );
     Tomahawk::ViewPage* showDynamicPage( const QString& pageName );
 
     void showCurrentTrack();
@@ -207,6 +210,7 @@ private:
     NetworkActivityWidget* m_networkActivityWidget;
 
     QHash< QString, Tomahawk::ViewPage* > m_dynamicPages;
+    QHash< QString, boost::function< Tomahawk::ViewPage*() > > m_dynamicPagesInstanceLoaders;
 
     QList< Tomahawk::collection_ptr > m_superCollections;
 

src/tomahawk/sourcetree/SourcesModel.cpp

@@ -79,7 +79,7 @@ SourcesModel::SourcesModel( QObject* parent )
              this, SLOT( onScriptCollectionRemoved( Tomahawk::collection_ptr ) ) );
 
 
-    connect( ViewManager::instance(), SIGNAL( viewPageAdded( QString ) ), SLOT( onViewPageAdded( QString ) ) );
+    connect( ViewManager::instance(), SIGNAL( viewPageAdded( QString, QString, QIcon ) ), SLOT( appendPageItem( QString, QString, QIcon ) ) );
 }
 
 
@@ -348,13 +348,13 @@ SourcesModel::appendGroups()
 }
 
 void
-SourcesModel::appendPageItem( const QIcon& pageIcon, const QString& pageTitle, const QString& pageName )
+SourcesModel::appendPageItem( const QString& name, const QString& text, const QIcon& icon )
 {
     QModelIndex parentIndex = indexFromItem( m_browse );
     beginInsertRows( parentIndex, rowCount( parentIndex ), rowCount( parentIndex ) );
-    GenericPageItem* pageItem = new GenericPageItem( this, m_browse, pageTitle, pageIcon,
+    GenericPageItem* pageItem = new GenericPageItem( this, m_browse, text, icon,
-                                            boost::bind( &ViewManager::showDynamicPage, ViewManager::instance(), pageName ),
+                                            boost::bind( &ViewManager::showDynamicPage, ViewManager::instance(), name ),
-                                            boost::bind( &ViewManager::dynamicPageWidget, ViewManager::instance(), pageName ) );
+                                            boost::bind( &ViewManager::dynamicPageWidget, ViewManager::instance(), name ) );
     pageItem->setSortValue( rowCount( parentIndex ) );
 
     endInsertRows();
@@ -672,13 +672,6 @@ SourcesModel::onWidgetDestroyed( QWidget* w )
 }
 
 
-void
-SourcesModel::onViewPageAdded( const QString& name )
-{
-    appendPageItem( ImageRegistry::instance()->icon( RESPATH "images/new-releases.svg" ), name, name);
-}
-
-
 void
 SourcesModel::removeSourceItemLink( SourceTreeItem* item )
 {

src/tomahawk/sourcetree/SourcesModel.h

@@ -103,11 +103,6 @@ public:
 
     void appendGroups();
 
-    /*
-     *  pageIcon and pageTitle are visible in the source tree, pageName is the internal name in the ViewManager
-     */
-    void appendPageItem( const QIcon& pageIcon, const QString& pageTitle, const QString& pageName );
-
     void appendItem( const Tomahawk::source_ptr& source );
     bool removeItem( const Tomahawk::source_ptr& source );
 
@@ -151,7 +146,10 @@ private slots:
 
     void onWidgetDestroyed( QWidget* w );
 
-    void onViewPageAdded( const QString& name );
+    /*
+     *  pageIcon and pageTitle are visible in the source tree, pageName is the internal name in the ViewManager
+     */
+    void appendPageItem( const QString& name, const QString& text, const QIcon& icon );
 
 private:
     SourceTreeItem* itemFromIndex( const QModelIndex& idx ) const;