From 790811343ae90c501aabd1a40ec375659fd415f2 Mon Sep 17 00:00:00 2001
From: Jakob Leben <jleben@videolan.org>
Date: Wed, 10 Feb 2010 08:27:42 +0100
Subject: [PATCH] Qt: return playlist model and views to "now playing" root if
 current root is deleted

---
 .../qt4/components/playlist/playlist_model.cpp   |  9 ++++++---
 .../qt4/components/playlist/playlist_model.hpp   |  1 +
 .../qt4/components/playlist/standardpanel.cpp    |  6 ++++++
 .../qt4/components/playlist/standardpanel.hpp    | 16 +++++++++-------
 4 files changed, 22 insertions(+), 10 deletions(-)

diff --git a/modules/gui/qt4/components/playlist/playlist_model.cpp b/modules/gui/qt4/components/playlist/playlist_model.cpp
index d2fba6f06c..6c6272f454 100644
--- a/modules/gui/qt4/components/playlist/playlist_model.cpp
+++ b/modules/gui/qt4/components/playlist/playlist_model.cpp
@@ -700,9 +700,6 @@ void PLModel::removeItem( PLItem *item )
     if( item->i_id == i_cached_id ) i_cached_id = -1;
     i_cached_input_id = -1;
 
-    if(item == rootItem)
-        rootItem = NULL;
-
     if( item->parentItem ) {
         int i = item->parentItem->children.indexOf( item );
         beginRemoveRows( index( item->parentItem, 0), i, i );
@@ -712,6 +709,12 @@ void PLModel::removeItem( PLItem *item )
     }
     else delete item;
 
+    if(item == rootItem)
+    {
+        rootItem = NULL;
+        rebuild( p_playlist->p_playing );
+        emit rootChanged();
+    }
 }
 
 /* This function must be entered WITH the playlist lock */
diff --git a/modules/gui/qt4/components/playlist/playlist_model.hpp b/modules/gui/qt4/components/playlist/playlist_model.hpp
index 9e368478bb..cb5e68c3e0 100644
--- a/modules/gui/qt4/components/playlist/playlist_model.hpp
+++ b/modules/gui/qt4/components/playlist/playlist_model.hpp
@@ -150,6 +150,7 @@ private:
 
 signals:
     void currentChanged( const QModelIndex& );
+    void rootChanged();
 
 public slots:
     void activateItem( const QModelIndex &index );
diff --git a/modules/gui/qt4/components/playlist/standardpanel.cpp b/modules/gui/qt4/components/playlist/standardpanel.cpp
index d26cc6482b..4d073a439e 100644
--- a/modules/gui/qt4/components/playlist/standardpanel.cpp
+++ b/modules/gui/qt4/components/playlist/standardpanel.cpp
@@ -79,6 +79,7 @@ StandardPLPanel::StandardPLPanel( PlaylistWidget *_parent,
 
     locationBar = new LocationBar( model );
     layout->addWidget( locationBar, 0, 0 );
+    CONNECT( model, rootChanged(), locationBar, setRootIndex() );
 
     /* A Spacer and the search possibilities */
     layout->setColumnStretch( 1, 10 );
@@ -499,6 +500,11 @@ void LocationBar::setIndex( const QModelIndex &index )
     }
 }
 
+void LocationBar::setRootIndex()
+{
+    setIndex( QModelIndex() );
+}
+
 void LocationBar::invoke( int i_id )
 {
     QModelIndex index = model->index( i_id, 0 );
diff --git a/modules/gui/qt4/components/playlist/standardpanel.hpp b/modules/gui/qt4/components/playlist/standardpanel.hpp
index dd868b2621..dd5aebfe8f 100644
--- a/modules/gui/qt4/components/playlist/standardpanel.hpp
+++ b/modules/gui/qt4/components/playlist/standardpanel.hpp
@@ -118,6 +118,8 @@ public:
     void setIndex( const QModelIndex & );
 signals:
     void invoked( const QModelIndex & );
+public slots:
+    void setRootIndex();
 private slots:
     void invoke( int i_item_id );
 private:
@@ -129,13 +131,13 @@ private:
 
 class LocationButton : public QPushButton
 {
-  public:
-      LocationButton( const QString &, bool bold, bool arrow );
-  private:
-      void paintEvent ( QPaintEvent * event );
-      QSize sizeHint() const;
-      QFontMetrics *metrics;
-      bool b_arrow;
+public:
+    LocationButton( const QString &, bool bold, bool arrow );
+private:
+    void paintEvent ( QPaintEvent * event );
+    QSize sizeHint() const;
+    QFontMetrics *metrics;
+    bool b_arrow;
 };
 
 #endif
-- 
2.39.2