From a8c9c25d2c137daf94292dcbbf4e889c6de0d6e6 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Andre <jpeg@via.ecp.fr>
Date: Wed, 3 Jun 2009 01:42:36 +0800
Subject: [PATCH] Fix #2765: DVD chapters navigation menu.

---
 modules/gui/qt4/menus.cpp | 16 +++++++++++++++-
 src/input/var.c           | 10 ++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/modules/gui/qt4/menus.cpp b/modules/gui/qt4/menus.cpp
index 38b26bcd21..b5713e4477 100644
--- a/modules/gui/qt4/menus.cpp
+++ b/modules/gui/qt4/menus.cpp
@@ -1257,6 +1257,19 @@ void QVLCMenu::UpdateItem( intf_thread_t *p_intf, QMenu *menu,
 
 #undef TEXT_OR_VAR
 
+/** HACK for the navigation submenu:
+ * "title %2i" variables take the value 0 if not set
+ */
+static bool CheckTitle( vlc_object_t *p_object, const char *psz_var )
+{
+    int i_title = 0;
+    if( sscanf( psz_var, "title %2i", &i_title ) <= 0 )
+        return true;
+
+    int i_current_title = var_GetInteger( p_object, "title" );
+    return ( i_title == i_current_title );
+}
+
 
 int QVLCMenu::CreateChoicesMenu( QMenu *submenu, const char *psz_var,
         vlc_object_t *p_object, bool b_root )
@@ -1325,7 +1338,8 @@ int QVLCMenu::CreateChoicesMenu( QMenu *submenu, const char *psz_var,
                 else menutext.sprintf( "%d", CURVAL.i_int );
                 CreateAndConnect( submenu, psz_var, menutext, "", ITEM_RADIO,
                         p_object, CURVAL, i_type,
-                        CURVAL.i_int == val.i_int );
+                        ( CURVAL.i_int == val.i_int )
+                        && CheckTitle( p_object, psz_var ) );
                 break;
 
             case VLC_VAR_FLOAT:
diff --git a/src/input/var.c b/src/input/var.c
index 955ca8e9fe..38aac2d56f 100644
--- a/src/input/var.c
+++ b/src/input/var.c
@@ -711,6 +711,16 @@ static int SeekpointCallback( vlc_object_t *p_this, char const *psz_cmd,
     else
     {
         input_ControlPush( p_input, INPUT_CONTROL_SET_SEEKPOINT, &newval );
+        val.i_int = newval.i_int;
+    }
+
+    /* Actualize "title %2i" variable */
+    if( val.i_int >= 0 && val.i_int < count.i_int )
+    {
+        int i_title = var_GetInteger( p_input, "title" );
+        char psz_titlevar[10] = {0};
+        snprintf( psz_titlevar, 10, "title %2i", i_title );
+        var_Change( p_input, psz_titlevar, VLC_VAR_SETVALUE, &val, NULL );
     }
 
     return VLC_SUCCESS;
-- 
2.39.2