From cfbccb85cf365dd855fa912186dd9d64e5871009 Mon Sep 17 00:00:00 2001
From: Leo Franchi <lfranchi@kde.org>
Date: Sun, 29 Jul 2012 15:08:43 -0400
Subject: [PATCH] TWK-1017: Show now-playing icon next to playlist in flat view
 mode

---
 src/libtomahawk/ViewManager.cpp           |  1 +
 src/libtomahawk/playlist/FlexibleView.cpp | 37 ++++++++++++++++++++++-
 src/libtomahawk/playlist/FlexibleView.h   |  5 +++
 src/sourcetree/items/PlaylistItems.cpp    |  9 ++++--
 4 files changed, 49 insertions(+), 3 deletions(-)

diff --git a/src/libtomahawk/ViewManager.cpp b/src/libtomahawk/ViewManager.cpp
index 7ec8e0f5d..bae8e9b5e 100644
--- a/src/libtomahawk/ViewManager.cpp
+++ b/src/libtomahawk/ViewManager.cpp
@@ -2,6 +2,7 @@
  *
  *   Copyright 2010-2011, Christian Muehlhaeuser <muesli@tomahawk-player.org>
  *   Copyright 2010-2011, Jeff Mitchell <jeff@tomahawk-player.org>
+ *   Copyright 2010-2012, Leo Franchi   <lfranchi@kde.org>
  *
  *   Tomahawk is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
diff --git a/src/libtomahawk/playlist/FlexibleView.cpp b/src/libtomahawk/playlist/FlexibleView.cpp
index 3a6d7534d..187b3e34c 100644
--- a/src/libtomahawk/playlist/FlexibleView.cpp
+++ b/src/libtomahawk/playlist/FlexibleView.cpp
@@ -27,12 +27,39 @@
 #include "playlist/TrackView.h"
 #include "playlist/GridView.h"
 #include "playlist/PlaylistLargeItemDelegate.h"
+#include "PlayableProxyModelPlaylistInterface.h"
 #include "utils/TomahawkUtilsGui.h"
 #include "utils/Logger.h"
 
 using namespace Tomahawk;
 
 
+class FlexibleViewInterface : public PlayableProxyModelPlaylistInterface {
+    Q_OBJECT
+public:
+    explicit FlexibleViewInterface( PlayableProxyModel* proxy, FlexibleView* view ) : PlayableProxyModelPlaylistInterface( proxy ), m_view( view ) {}
+
+    virtual bool hasChildInterface( playlistinterface_ptr playlistInterface )
+    {
+        if ( m_view.isNull() )
+            return false;
+
+        if ( m_view.data()->detailedView() && m_view.data()->detailedView()->proxyModel()->playlistInterface() == playlistInterface )
+            return true;
+
+        if ( m_view.data()->gridView() && m_view.data()->gridView()->playlistInterface()->hasChildInterface( playlistInterface ) )
+            return true;
+
+        if ( m_view.data()->trackView() && m_view.data()->trackView()->proxyModel()->playlistInterface() == playlistInterface )
+            return true;
+
+        return false;
+    }
+
+private:
+    QWeakPointer<FlexibleView> m_view;
+};
+
 FlexibleView::FlexibleView( QWidget* parent )
     : QWidget( parent )
     , m_header( new FlexibleHeader( this ) )
@@ -43,6 +70,8 @@ FlexibleView::FlexibleView( QWidget* parent )
 {
     qRegisterMetaType< FlexibleViewMode >( "FlexibleViewMode" );
 
+    m_playlistInterface = playlistinterface_ptr( new FlexibleViewInterface( m_trackView->proxyModel(), this ) );
+
     PlaylistLargeItemDelegate* del = new PlaylistLargeItemDelegate( PlaylistLargeItemDelegate::LovedTracks, m_trackView, m_trackView->proxyModel() );
     connect( del, SIGNAL( updateIndex( QModelIndex ) ), m_trackView, SLOT( update( QModelIndex ) ) );
     m_trackView->setItemDelegate( del );
@@ -79,8 +108,12 @@ FlexibleView::setTrackView( TrackView* view )
         delete m_trackView;
     }
 
+    if ( view && m_trackView != view )
+        m_playlistInterface = playlistinterface_ptr( new FlexibleViewInterface( view->proxyModel(), this ) );
+
     m_trackView = view;
     m_stack->addWidget( view );
+
 }
 
 
@@ -169,7 +202,7 @@ FlexibleView::setCurrentMode( FlexibleViewMode mode )
 Tomahawk::playlistinterface_ptr
 FlexibleView::playlistInterface() const
 {
-    return m_trackView->playlistInterface();
+    return m_playlistInterface;
 }
 
 
@@ -232,3 +265,5 @@ FlexibleView::setPixmap( const QPixmap& pixmap )
     m_pixmap = pixmap;
     m_header->setPixmap( pixmap );
 }
+
+#include "FlexibleView.moc"
diff --git a/src/libtomahawk/playlist/FlexibleView.h b/src/libtomahawk/playlist/FlexibleView.h
index 3b502643a..a78104116 100644
--- a/src/libtomahawk/playlist/FlexibleView.h
+++ b/src/libtomahawk/playlist/FlexibleView.h
@@ -29,6 +29,7 @@ class GridView;
 class TrackView;
 class PlayableModel;
 class FlexibleHeader;
+class FlexibleViewInterface;
 
 class DLLEXPORT FlexibleView : public QWidget, public Tomahawk::ViewPage
 {
@@ -80,10 +81,14 @@ private:
     TrackView* m_detailedView;
     GridView* m_gridView;
 
+    Tomahawk::playlistinterface_ptr m_playlistInterface;
+
     PlayableModel* m_model;
     QStackedWidget* m_stack;
 
     FlexibleViewMode m_mode;
+
+    friend class ::FlexibleViewInterface;
 };
 
 Q_DECLARE_METATYPE( FlexibleView::FlexibleViewMode );
diff --git a/src/sourcetree/items/PlaylistItems.cpp b/src/sourcetree/items/PlaylistItems.cpp
index c36313796..3630b1f0d 100644
--- a/src/sourcetree/items/PlaylistItems.cpp
+++ b/src/sourcetree/items/PlaylistItems.cpp
@@ -108,8 +108,13 @@ PlaylistItem::IDValue() const
 bool
 PlaylistItem::isBeingPlayed() const
 {
-    if ( ViewManager::instance()->pageForPlaylist( m_playlist ) )
-        return AudioEngine::instance()->currentTrackPlaylist() == ViewManager::instance()->pageForPlaylist( m_playlist )->playlistInterface();
+    if ( ViewPage* page = ViewManager::instance()->pageForPlaylist( m_playlist ) )
+    {
+        if ( AudioEngine::instance()->currentTrackPlaylist() == page->playlistInterface() )
+            return true;
+        if ( page->playlistInterface()->hasChildInterface( AudioEngine::instance()->currentTrackPlaylist() ) )
+            return true;
+    }
     return false;
 }