]> git.sesse.net Git - vlc/blobdiff - modules/control/dbus.c
Qt4: save only the family of the font
[vlc] / modules / control / dbus.c
index 3c86bf5ae0380fcfb1b36eca61f2c91553961846..820622f595f270bd433ace8c1a857bd96f9b679d 100644 (file)
@@ -1,8 +1,9 @@
 /*****************************************************************************
  * dbus.c : D-Bus control interface
  *****************************************************************************
- * Copyright © 2006-2007 Rafaël Carré
- * Copyright © 2007 Mirsal Ennaime
+ * Copyright © 2006-2008 Rafaël Carré
+ * Copyright © 2007-2008 Mirsal Ennaime
+ * Copyright © 2009 The VideoLAN team
  * $Id$
  *
  * Authors:    Rafaël Carré <funman at videolanorg>
@@ -31,7 +32,7 @@
  *  extract:
  *   "If you use this low-level API directly, you're signing up for some pain."
  *
- * MPRIS Specification (still drafting on Oct, 23 of 2007):
+ * MPRIS Specification version 1.0
  *      http://wiki.xmms2.xmms.se/index.php/MPRIS
  */
 
  * Preamble
  *****************************************************************************/
 
-#include <dbus/dbus.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
 
+#include <dbus/dbus.h>
 #include "dbus.h"
 
-#include <vlc/vlc.h>
+#include <vlc_common.h>
+#include <vlc_plugin.h>
 #include <vlc_aout.h>
 #include <vlc_interface.h>
-#include <vlc_meta.h>
-#include <vlc_input.h>
 #include <vlc_playlist.h>
 
+#include <math.h>
+
+#include <assert.h>
+
 /*****************************************************************************
  * Local prototypes.
  *****************************************************************************/
@@ -58,36 +65,73 @@ static int  Open    ( vlc_object_t * );
 static void Close   ( vlc_object_t * );
 static void Run     ( intf_thread_t * );
 
-static int StateChange( vlc_object_t *, const char *, vlc_value_t,
-                        vlc_value_t, void * );
-
-static int TrackChange( vlc_object_t *, const char *, vlc_value_t,
-                        vlc_value_t, void * );
+static int StateChange( intf_thread_t *, int );
+static int TrackChange( intf_thread_t * );
+static int StatusChangeEmit( intf_thread_t *);
+static int TrackListChangeEmit( intf_thread_t *, int, int );
 
-static int StatusChangeEmit( vlc_object_t *, const char *, vlc_value_t,
-                        vlc_value_t, void * );
+static int AllCallback( vlc_object_t*, const char*, vlc_value_t, vlc_value_t, void* );
 
 static int GetInputMeta ( input_item_t *, DBusMessageIter * );
 static int MarshalStatus ( intf_thread_t *, DBusMessageIter * );
+static int UpdateCaps( intf_thread_t* );
+
+/* GetCaps() capabilities */
+enum
+{
+     CAPS_NONE                  = 0,
+     CAPS_CAN_GO_NEXT           = 1 << 0,
+     CAPS_CAN_GO_PREV           = 1 << 1,
+     CAPS_CAN_PAUSE             = 1 << 2,
+     CAPS_CAN_PLAY              = 1 << 3,
+     CAPS_CAN_SEEK              = 1 << 4,
+     CAPS_CAN_PROVIDE_METADATA  = 1 << 5,
+     CAPS_CAN_HAS_TRACKLIST     = 1 << 6
+};
+
+// The signal that can be get from the callbacks
+enum
+{
+    SIGNAL_ITEM_CURRENT,
+    SIGNAL_INTF_CHANGE,
+    SIGNAL_PLAYLIST_ITEM_APPEND,
+    SIGNAL_PLAYLIST_ITEM_DELETED,
+    SIGNAL_RANDOM,
+    SIGNAL_REPEAT,
+    SIGNAL_LOOP,
+    SIGNAL_STATE
+};
 
 struct intf_sys_t
 {
     DBusConnection *p_conn;
-    vlc_bool_t      b_meta_read;
+    bool            b_meta_read;
+    dbus_int32_t    i_caps;
+    bool            b_dead;
+    vlc_array_t    *p_events;
+    vlc_mutex_t     lock;
 };
 
+typedef struct
+{
+    int signal;
+    int i_node;
+    int i_input_state;
+} callback_info_t;
+
+
 /*****************************************************************************
  * Module descriptor
  *****************************************************************************/
 
-vlc_module_begin();
-    set_shortname( _("dbus"));
-    set_category( CAT_INTERFACE );
-    set_subcategory( SUBCAT_INTERFACE_CONTROL );
-    set_description( _("D-Bus control interface") );
-    set_capability( "interface", 0 );
-    set_callbacks( Open, Close );
-vlc_module_end();
+vlc_module_begin ()
+    set_shortname( N_("dbus"))
+    set_category( CAT_INTERFACE )
+    set_subcategory( SUBCAT_INTERFACE_CONTROL )
+    set_description( N_("D-Bus control interface") )
+    set_capability( "interface", 0 )
+    set_callbacks( Open, Close )
+vlc_module_end ()
 
 /*****************************************************************************
  * Methods
@@ -98,10 +142,33 @@ vlc_module_end();
 DBUS_METHOD( Quit )
 { /* exits vlc */
     REPLY_INIT;
-    playlist_t *p_playlist = pl_Yield( (vlc_object_t*) p_this );
-    playlist_Stop( p_playlist );
-    pl_Release( ((vlc_object_t*) p_this) );
-    vlc_object_kill(((vlc_object_t*)p_this)->p_libvlc);
+    libvlc_Quit(((vlc_object_t*)p_this)->p_libvlc);
+    REPLY_SEND;
+}
+
+DBUS_METHOD( MprisVersion )
+{ /*implemented version of the mpris spec */
+    REPLY_INIT;
+    OUT_ARGUMENTS;
+    VLC_UNUSED( p_this );
+    dbus_uint16_t i_major = VLC_MPRIS_VERSION_MAJOR;
+    dbus_uint16_t i_minor = VLC_MPRIS_VERSION_MINOR;
+    DBusMessageIter version;
+
+    if( !dbus_message_iter_open_container( &args, DBUS_TYPE_STRUCT, NULL,
+            &version ) )
+        return DBUS_HANDLER_RESULT_NEED_MEMORY;
+
+    if( !dbus_message_iter_append_basic( &version, DBUS_TYPE_UINT16,
+            &i_major ) )
+        return DBUS_HANDLER_RESULT_NEED_MEMORY;
+
+    if( !dbus_message_iter_append_basic( &version, DBUS_TYPE_UINT16,
+            &i_minor ) )
+        return DBUS_HANDLER_RESULT_NEED_MEMORY;
+
+    if( !dbus_message_iter_close_container( &args, &version ) )
+        return DBUS_HANDLER_RESULT_NEED_MEMORY;
     REPLY_SEND;
 }
 
@@ -112,20 +179,17 @@ DBUS_METHOD( PositionGet )
     vlc_value_t position;
     dbus_int32_t i_pos;
 
-    playlist_t *p_playlist = pl_Yield( ((vlc_object_t*) p_this) );
-
-    input_thread_t *p_input = p_playlist->p_input;
+    playlist_t *p_playlist = pl_Hold( ((vlc_object_t*) p_this) );
+    input_thread_t *p_input = playlist_CurrentInput( p_playlist );
 
     if( !p_input )
         i_pos = 0;
     else
     {
-        vlc_object_yield( p_input );
         var_Get( p_input, "time", &position );
-        vlc_object_release( p_input );
         i_pos = position.i_time / 1000;
+        vlc_object_release( p_input );
     }
-
     pl_Release( ((vlc_object_t*) p_this) );
     ADD_INT32( &i_pos );
     REPLY_SEND;
@@ -148,23 +212,20 @@ DBUS_METHOD( PositionSet )
 
     if( dbus_error_is_set( &error ) )
     {
-        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s\n",
+        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
                 error.message );
         dbus_error_free( &error );
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
-    p_playlist = pl_Yield( ((vlc_object_t*) p_this) );
-
-    input_thread_t *p_input = p_playlist->p_input;
+    p_playlist = pl_Hold( ((vlc_object_t*) p_this) );
+    input_thread_t *p_input = playlist_CurrentInput( p_playlist );
 
     if( p_input )
     {
-        position.i_time = i_pos * 1000;
-        vlc_object_yield( p_input );
+        position.i_time = ((mtime_t)i_pos) * 1000;
         var_Set( p_input, "time", position );
         vlc_object_release( p_input );
     }
-
     pl_Release( ((vlc_object_t*) p_this) );
     REPLY_SEND;
 }
@@ -175,9 +236,14 @@ DBUS_METHOD( VolumeGet )
     OUT_ARGUMENTS;
     dbus_int32_t i_dbus_vol;
     audio_volume_t i_vol;
+
     /* 2nd argument of aout_VolumeGet is int32 */
-    aout_VolumeGet( (vlc_object_t*) p_this, &i_vol );
-    i_dbus_vol = ( 100 * i_vol ) / AOUT_VOLUME_MAX;
+    playlist_t *p_playlist = pl_Hold( ((vlc_object_t*) p_this) );
+    aout_VolumeGet( p_playlist, &i_vol );
+    pl_Release( ((vlc_object_t*) p_this) );
+
+    double f_vol = 100. * i_vol / AOUT_VOLUME_MAX;
+    i_dbus_vol = round( f_vol );
     ADD_INT32( &i_dbus_vol );
     REPLY_SEND;
 }
@@ -198,22 +264,24 @@ DBUS_METHOD( VolumeSet )
 
     if( dbus_error_is_set( &error ) )
     {
-        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s\n",
+        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
                 error.message );
         dbus_error_free( &error );
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
 
-    i_vol = ( AOUT_VOLUME_MAX / 100 ) *i_dbus_vol;
-    aout_VolumeSet( (vlc_object_t*) p_this, i_vol );
-
+    double f_vol = AOUT_VOLUME_MAX * i_dbus_vol / 100.;
+    i_vol = round( f_vol );
+    playlist_t *p_playlist = pl_Hold( ((vlc_object_t*) p_this) );
+    aout_VolumeSet( p_playlist, i_vol );
+    pl_Release( ((vlc_object_t*) p_this) );
     REPLY_SEND;
 }
 
 DBUS_METHOD( Next )
 { /* next playlist item */
     REPLY_INIT;
-    playlist_t *p_playlist = pl_Yield( ((vlc_object_t*) p_this) );
+    playlist_t *p_playlist = pl_Hold( ((vlc_object_t*) p_this) );
     playlist_Next( p_playlist );
     pl_Release( ((vlc_object_t*) p_this) );
     REPLY_SEND;
@@ -222,7 +290,7 @@ DBUS_METHOD( Next )
 DBUS_METHOD( Prev )
 { /* previous playlist item */
     REPLY_INIT;
-    playlist_t *p_playlist = pl_Yield( ((vlc_object_t*) p_this) );
+    playlist_t *p_playlist = pl_Hold( ((vlc_object_t*) p_this) );
     playlist_Prev( p_playlist );
     pl_Release( ((vlc_object_t*) p_this) );
     REPLY_SEND;
@@ -231,7 +299,7 @@ DBUS_METHOD( Prev )
 DBUS_METHOD( Stop )
 { /* stop playing */
     REPLY_INIT;
-    playlist_t *p_playlist = pl_Yield( ((vlc_object_t*) p_this) );
+    playlist_t *p_playlist = pl_Hold( ((vlc_object_t*) p_this) );
     playlist_Stop( p_playlist );
     pl_Release( ((vlc_object_t*) p_this) );
     REPLY_SEND;
@@ -256,18 +324,29 @@ DBUS_METHOD( GetStatus )
 DBUS_METHOD( Pause )
 {
     REPLY_INIT;
-    playlist_t *p_playlist = pl_Yield( (vlc_object_t*) p_this );
+    playlist_t *p_playlist = pl_Hold( (vlc_object_t*) p_this );
     playlist_Pause( p_playlist );
-    pl_Release( p_playlist );
+    pl_Release( (vlc_object_t*) p_this );
     REPLY_SEND;
 }
 
 DBUS_METHOD( Play )
 {
     REPLY_INIT;
-    playlist_t *p_playlist = pl_Yield( (vlc_object_t*) p_this );
-    playlist_Play( p_playlist );
-    pl_Release( p_playlist );
+    playlist_t *p_playlist = pl_Hold( (vlc_object_t*) p_this );
+
+    input_thread_t *p_input =  playlist_CurrentInput( p_playlist );
+
+    if( p_input )
+    {
+        double i_pos = 0;
+        input_Control( p_input, INPUT_SET_POSITION, i_pos );
+        vlc_object_release( p_input );
+    }
+    else
+        playlist_Play( p_playlist );
+
+    pl_Release( (vlc_object_t*) p_this );
     REPLY_SEND;
 }
 
@@ -275,12 +354,23 @@ DBUS_METHOD( GetCurrentMetadata )
 {
     REPLY_INIT;
     OUT_ARGUMENTS;
-    playlist_t* p_playlist = pl_Yield( (vlc_object_t*) p_this );
+    playlist_t* p_playlist = pl_Hold( (vlc_object_t*) p_this );
     PL_LOCK;
-    if( p_playlist->status.p_item )
-        GetInputMeta( p_playlist->status.p_item->p_input, &args );
+    playlist_item_t* p_item =  playlist_CurrentPlayingItem( p_playlist );
+    if( p_item )
+        GetInputMeta( p_item->p_input, &args );
     PL_UNLOCK;
-    pl_Release( p_playlist );
+    pl_Release( (vlc_object_t*) p_this );
+    REPLY_SEND;
+}
+
+DBUS_METHOD( GetCaps )
+{
+    REPLY_INIT;
+    OUT_ARGUMENTS;
+
+    ADD_INT32( &((intf_thread_t*)p_this)->p_sys->i_caps );
+
     REPLY_SEND;
 }
 
@@ -288,12 +378,18 @@ DBUS_METHOD( GetCurrentMetadata )
 
 DBUS_METHOD( Identity )
 {
+    VLC_UNUSED(p_this);
     REPLY_INIT;
     OUT_ARGUMENTS;
-    char *psz_identity = malloc( strlen( PACKAGE ) + strlen( VERSION ) + 2 );
-    sprintf( psz_identity, "%s %s", PACKAGE, VERSION );
-    ADD_STRING( &psz_identity );
-    free( psz_identity );
+    char *psz_identity;
+    if( asprintf( &psz_identity, "%s %s", PACKAGE, VERSION ) != -1 )
+    {
+        ADD_STRING( &psz_identity );
+        free( psz_identity );
+    }
+    else
+        return DBUS_HANDLER_RESULT_NEED_MEMORY;
+
     REPLY_SEND;
 }
 
@@ -302,6 +398,7 @@ DBUS_METHOD( Identity )
 DBUS_METHOD( AddTrack )
 { /* add the string to the playlist, and play it if the boolean is true */
     REPLY_INIT;
+    OUT_ARGUMENTS;
 
     DBusError error;
     dbus_error_init( &error );
@@ -317,17 +414,20 @@ DBUS_METHOD( AddTrack )
 
     if( dbus_error_is_set( &error ) )
     {
-        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s\n",
+        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
                 error.message );
         dbus_error_free( &error );
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
 
-    p_playlist = pl_Yield( (vlc_object_t*) p_this );
+    p_playlist = pl_Hold( (vlc_object_t*) p_this );
     playlist_Add( p_playlist, psz_mrl, NULL, PLAYLIST_APPEND |
             ( ( b_play == TRUE ) ? PLAYLIST_GO : 0 ) ,
-            PLAYLIST_END, VLC_TRUE, VLC_FALSE );
-    pl_Release( p_playlist );
+            PLAYLIST_END, true, false );
+    pl_Release( (vlc_object_t*) p_this );
+
+    dbus_int32_t i_success = 0;
+    ADD_INT32( &i_success );
 
     REPLY_SEND;
 }
@@ -337,9 +437,9 @@ DBUS_METHOD( GetCurrentTrack )
     REPLY_INIT;
     OUT_ARGUMENTS;
 
-    playlist_t *p_playlist = pl_Yield( (vlc_object_t*) p_this );
+    playlist_t *p_playlist = pl_Hold( (vlc_object_t*) p_this );
     dbus_int32_t i_position = p_playlist->i_current_index;
-    pl_Release( p_playlist );
+    pl_Release( (vlc_object_t*) p_this );
 
     ADD_INT32( &i_position );
     REPLY_SEND;
@@ -353,8 +453,7 @@ DBUS_METHOD( GetMetadata )
     dbus_error_init( &error );
 
     dbus_int32_t i_position;
-
-    playlist_t *p_playlist = pl_Yield( (vlc_object_t*) p_this );
+    playlist_t *p_playlist;
 
     dbus_message_get_args( p_from, &error,
            DBUS_TYPE_INT32, &i_position,
@@ -362,18 +461,21 @@ DBUS_METHOD( GetMetadata )
 
     if( dbus_error_is_set( &error ) )
     {
-        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s\n",
+        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
                 error.message );
         dbus_error_free( &error );
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
 
-    if( i_position <= p_playlist->items.i_size / 2 )
+    p_playlist = pl_Hold( (vlc_object_t*) p_this );
+    PL_LOCK;
+    if( i_position < p_playlist->current.i_size )
     {
-        GetInputMeta( p_playlist->items.p_elems[i_position*2-1]->p_input, &args );
+        GetInputMeta( p_playlist->current.p_elems[i_position]->p_input, &args );
     }
 
-    pl_Release( p_playlist );
+    PL_UNLOCK;
+    pl_Release( (vlc_object_t*) p_this );
     REPLY_SEND;
 }
 
@@ -382,9 +484,9 @@ DBUS_METHOD( GetLength )
     REPLY_INIT;
     OUT_ARGUMENTS;
 
-    playlist_t *p_playlist = pl_Yield( (vlc_object_t*) p_this );
-    dbus_int32_t i_elements = p_playlist->items.i_size / 2;
-    pl_Release( p_playlist );
+    playlist_t *p_playlist = pl_Hold( (vlc_object_t*) p_this );
+    dbus_int32_t i_elements = p_playlist->current.i_size;
+    pl_Release( (vlc_object_t*) p_this );
 
     ADD_INT32( &i_elements );
     REPLY_SEND;
@@ -398,7 +500,7 @@ DBUS_METHOD( DelTrack )
     dbus_error_init( &error );
 
     dbus_int32_t i_position;
-    playlist_t *p_playlist = pl_Yield( (vlc_object_t*) p_this );
+    playlist_t *p_playlist;
 
     dbus_message_get_args( p_from, &error,
             DBUS_TYPE_INT32, &i_position,
@@ -406,33 +508,35 @@ DBUS_METHOD( DelTrack )
 
     if( dbus_error_is_set( &error ) )
     {
-        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s\n",
+        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
                 error.message );
         dbus_error_free( &error );
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
 
-    if( i_position >= p_playlist->items.i_size / 2 )
+    p_playlist = pl_Hold( (vlc_object_t*) p_this );
+    PL_LOCK;
+    if( i_position < p_playlist->current.i_size )
     {
         playlist_DeleteFromInput( p_playlist,
-            p_playlist->items.p_elems[i_position*2-1]->i_id,
-            VLC_FALSE );
+            p_playlist->current.p_elems[i_position]->p_input,
+            pl_Locked );
     }
+    PL_UNLOCK;
 
-    pl_Release( p_playlist );
+    pl_Release( (vlc_object_t*) p_this );
 
     REPLY_SEND;
 }
 
-DBUS_METHOD( Loop )
+DBUS_METHOD( SetLoop )
 {
     REPLY_INIT;
     OUT_ARGUMENTS;
 
     DBusError error;
     dbus_bool_t b_loop;
-    vlc_value_t val;
-    playlist_t* p_playlist = NULL;
+    playlist_t* p_playlist;
 
     dbus_error_init( &error );
     dbus_message_get_args( p_from, &error,
@@ -441,15 +545,14 @@ DBUS_METHOD( Loop )
 
     if( dbus_error_is_set( &error ) )
     {
-        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s\n",
+        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
                 error.message );
         dbus_error_free( &error );
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
 
-    val.b_bool = ( b_loop == TRUE ) ? VLC_TRUE : VLC_FALSE ;
-    p_playlist = pl_Yield( (vlc_object_t*) p_this );
-    var_Set ( p_playlist, "loop", val );
+    p_playlist = pl_Hold( (vlc_object_t*) p_this );
+    var_SetBool( p_playlist, "loop", ( b_loop == TRUE ) );
     pl_Release( ((vlc_object_t*) p_this) );
 
     REPLY_SEND;
@@ -462,8 +565,7 @@ DBUS_METHOD( Repeat )
 
     DBusError error;
     dbus_bool_t b_repeat;
-    vlc_value_t val;
-    playlist_t* p_playlist = NULL;
+    playlist_t* p_playlist;
 
     dbus_error_init( &error );
     dbus_message_get_args( p_from, &error,
@@ -472,30 +574,27 @@ DBUS_METHOD( Repeat )
 
     if( dbus_error_is_set( &error ) )
     {
-        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s\n",
+        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
                 error.message );
         dbus_error_free( &error );
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
 
-    val.b_bool = ( b_repeat == TRUE ) ? VLC_TRUE : VLC_FALSE ;
-
-    p_playlist = pl_Yield( (vlc_object_t*) p_this );
-    var_Set ( p_playlist, "repeat", val );
+    p_playlist = pl_Hold( (vlc_object_t*) p_this );
+    var_SetBool( p_playlist, "repeat", ( b_repeat == TRUE ) );
     pl_Release( ((vlc_object_t*) p_this) );
 
     REPLY_SEND;
 }
 
-DBUS_METHOD( Random )
+DBUS_METHOD( SetRandom )
 {
     REPLY_INIT;
     OUT_ARGUMENTS;
 
     DBusError error;
     dbus_bool_t b_random;
-    vlc_value_t val;
-    playlist_t* p_playlist = NULL;
+    playlist_t* p_playlist;
 
     dbus_error_init( &error );
     dbus_message_get_args( p_from, &error,
@@ -504,16 +603,14 @@ DBUS_METHOD( Random )
 
     if( dbus_error_is_set( &error ) )
     {
-        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s\n",
+        msg_Err( (vlc_object_t*) p_this, "D-Bus message reading : %s",
                 error.message );
         dbus_error_free( &error );
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
 
-    val.b_bool = ( b_random == TRUE ) ? VLC_TRUE : VLC_FALSE ;
-
-    p_playlist = pl_Yield( (vlc_object_t*) p_this );
-    var_Set ( p_playlist, "random", val );
+    p_playlist = pl_Hold( (vlc_object_t*) p_this );
+    var_SetBool( p_playlist, "random", ( b_random == TRUE ) );
     pl_Release( ((vlc_object_t*) p_this) );
 
     REPLY_SEND;
@@ -524,6 +621,7 @@ DBUS_METHOD( Random )
 
 DBUS_METHOD( handle_introspect_root )
 { /* handles introspection of root object */
+    VLC_UNUSED(p_this);
     REPLY_INIT;
     OUT_ARGUMENTS;
     ADD_STRING( &psz_introspection_xml_data_root );
@@ -532,6 +630,7 @@ DBUS_METHOD( handle_introspect_root )
 
 DBUS_METHOD( handle_introspect_player )
 {
+    VLC_UNUSED(p_this);
     REPLY_INIT;
     OUT_ARGUMENTS;
     ADD_STRING( &psz_introspection_xml_data_player );
@@ -540,6 +639,7 @@ DBUS_METHOD( handle_introspect_player )
 
 DBUS_METHOD( handle_introspect_tracklist )
 {
+    VLC_UNUSED(p_this);
     REPLY_INIT;
     OUT_ARGUMENTS;
     ADD_STRING( &psz_introspection_xml_data_tracklist );
@@ -564,6 +664,8 @@ DBUS_METHOD( handle_root )
     /* here D-Bus method's names are associated to an handler */
 
     METHOD_FUNC( "Identity",                Identity );
+    METHOD_FUNC( "MprisVersion",            MprisVersion );
+    METHOD_FUNC( "Quit",                    Quit );
 
     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 }
@@ -573,13 +675,12 @@ DBUS_METHOD( handle_player )
 {
     if( dbus_message_is_method_call( p_from,
                 DBUS_INTERFACE_INTROSPECTABLE, "Introspect" ) )
-    return handle_introspect_player( p_conn, p_from, p_this );
+        return handle_introspect_player( p_conn, p_from, p_this );
 
     /* here D-Bus method's names are associated to an handler */
 
     METHOD_FUNC( "Prev",                    Prev );
     METHOD_FUNC( "Next",                    Next );
-    METHOD_FUNC( "Quit",                    Quit );
     METHOD_FUNC( "Stop",                    Stop );
     METHOD_FUNC( "Play",                    Play );
     METHOD_FUNC( "Pause",                   Pause );
@@ -590,6 +691,7 @@ DBUS_METHOD( handle_player )
     METHOD_FUNC( "PositionGet",             PositionGet );
     METHOD_FUNC( "GetStatus",               GetStatus );
     METHOD_FUNC( "GetMetadata",             GetCurrentMetadata );
+    METHOD_FUNC( "GetCaps",                 GetCaps );
 
     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 }
@@ -607,8 +709,8 @@ DBUS_METHOD( handle_tracklist )
     METHOD_FUNC( "GetLength",               GetLength );
     METHOD_FUNC( "AddTrack",                AddTrack );
     METHOD_FUNC( "DelTrack",                DelTrack );
-    METHOD_FUNC( "Loop",                    Loop );
-    METHOD_FUNC( "Random",                  Random );
+    METHOD_FUNC( "SetLoop",                 SetLoop );
+    METHOD_FUNC( "SetRandom",               SetRandom );
 
     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 }
@@ -628,7 +730,9 @@ static int Open( vlc_object_t *p_this )
     if( !p_sys )
         return VLC_ENOMEM;
 
-    p_sys->b_meta_read = VLC_FALSE;
+    p_sys->b_meta_read = false;
+    p_sys->i_caps = CAPS_NONE;
+    p_sys->b_dead = false;
 
     dbus_error_init( &error );
 
@@ -664,18 +768,25 @@ static int Open( vlc_object_t *p_this )
 
     dbus_connection_flush( p_conn );
 
-    p_playlist = pl_Yield( p_intf );
-    PL_LOCK;
-    var_AddCallback( p_playlist, "playlist-current", TrackChange, p_intf );
-    var_AddCallback( p_playlist, "random", StatusChangeEmit, p_intf );
-    var_AddCallback( p_playlist, "repeat", StatusChangeEmit, p_intf );
-    var_AddCallback( p_playlist, "loop", StatusChangeEmit, p_intf );
-    PL_UNLOCK;
-    pl_Release( p_playlist );
-
     p_intf->pf_run = Run;
     p_intf->p_sys = p_sys;
     p_sys->p_conn = p_conn;
+    p_sys->p_events = vlc_array_new();
+    vlc_mutex_init( &p_sys->lock );
+
+    p_playlist = pl_Hold( p_intf );
+    PL_LOCK;
+    var_AddCallback( p_playlist, "item-current", AllCallback, p_intf );
+    var_AddCallback( p_playlist, "intf-change", AllCallback, p_intf );
+    var_AddCallback( p_playlist, "playlist-item-append", AllCallback, p_intf );
+    var_AddCallback( p_playlist, "playlist-item-deleted", AllCallback, p_intf );
+    var_AddCallback( p_playlist, "random", AllCallback, p_intf );
+    var_AddCallback( p_playlist, "repeat", AllCallback, p_intf );
+    var_AddCallback( p_playlist, "loop", AllCallback, p_intf );
+    PL_UNLOCK;
+    pl_Release( p_intf );
+
+    UpdateCaps( p_intf );
 
     return VLC_SUCCESS;
 }
@@ -687,30 +798,36 @@ static int Open( vlc_object_t *p_this )
 static void Close   ( vlc_object_t *p_this )
 {
     intf_thread_t   *p_intf     = (intf_thread_t*) p_this;
-    playlist_t      *p_playlist = pl_Yield( p_intf );;
+    playlist_t      *p_playlist = pl_Hold( p_intf );;
     input_thread_t  *p_input;
 
-    p_this->b_dead = VLC_TRUE;
-
-    PL_LOCK;
-    var_DelCallback( p_playlist, "playlist-current", TrackChange, p_intf );
-    var_DelCallback( p_playlist, "random", StatusChangeEmit, p_intf );
-    var_DelCallback( p_playlist, "repeat", StatusChangeEmit, p_intf );
-    var_DelCallback( p_playlist, "loop", StatusChangeEmit, p_intf );
+    var_DelCallback( p_playlist, "item-current", AllCallback, p_intf );
+    var_DelCallback( p_playlist, "intf-change", AllCallback, p_intf );
+    var_DelCallback( p_playlist, "playlist-item-append", AllCallback, p_intf );
+    var_DelCallback( p_playlist, "playlist-item-deleted", AllCallback, p_intf );
+    var_DelCallback( p_playlist, "random", AllCallback, p_intf );
+    var_DelCallback( p_playlist, "repeat", AllCallback, p_intf );
+    var_DelCallback( p_playlist, "loop", AllCallback, p_intf );
 
-    p_input = p_playlist->p_input;
+    p_input = playlist_CurrentInput( p_playlist );
     if ( p_input )
     {
-        vlc_object_yield( p_input );
-        var_DelCallback( p_input, "state", StateChange, p_intf );
+        var_DelCallback( p_input, "state", AllCallback, p_intf );
         vlc_object_release( p_input );
     }
 
-    PL_UNLOCK;
-    pl_Release( p_playlist );
+    pl_Release( p_intf );
 
     dbus_connection_unref( p_intf->p_sys->p_conn );
 
+    // Free the events array
+    for( int i = 0; i < vlc_array_count( p_intf->p_sys->p_events ); i++ )
+    {
+        callback_info_t* info = vlc_array_item_at_index( p_intf->p_sys->p_events, i );
+        free( info );
+    }
+    vlc_mutex_destroy( &p_intf->p_sys->lock );
+    vlc_array_destroy( p_intf->p_sys->p_events );
     free( p_intf->p_sys );
 }
 
@@ -720,13 +837,169 @@ static void Close   ( vlc_object_t *p_this )
 
 static void Run          ( intf_thread_t *p_intf )
 {
-    while( !intf_ShouldDie( p_intf ) )
+    for( ;; )
     {
-        msleep( INTF_IDLE_SLEEP );
+        if( dbus_connection_get_dispatch_status(p_intf->p_sys->p_conn)
+                                             == DBUS_DISPATCH_COMPLETE )
+            msleep( INTF_IDLE_SLEEP );
+        int canc = vlc_savecancel();
         dbus_connection_read_write_dispatch( p_intf->p_sys->p_conn, 0 );
+
+        /* Get the list of events to process
+         *
+         * We can't keep the lock on p_intf->p_sys->p_events, else we risk a
+         * deadlock:
+         * The signal functions could lock mutex X while p_events is locked;
+         * While some other function in vlc (playlist) might lock mutex X
+         * and then set a variable which would call AllCallback(), which itself
+         * needs to lock p_events to add a new event.
+         */
+        vlc_mutex_lock( &p_intf->p_sys->lock );
+        int i_events = vlc_array_count( p_intf->p_sys->p_events );
+        callback_info_t* info[i_events];
+        for( int i = i_events - 1; i >= 0; i-- )
+        {
+            info[i] = vlc_array_item_at_index( p_intf->p_sys->p_events, i );
+            vlc_array_remove( p_intf->p_sys->p_events, i );
+        }
+        vlc_mutex_unlock( &p_intf->p_sys->lock );
+
+        for( int i = 0; i < i_events; i++ )
+        {
+            switch( info[i]->signal )
+            {
+            case SIGNAL_ITEM_CURRENT:
+                TrackChange( p_intf );
+                break;
+            case SIGNAL_INTF_CHANGE:
+            case SIGNAL_PLAYLIST_ITEM_APPEND:
+            case SIGNAL_PLAYLIST_ITEM_DELETED:
+                TrackListChangeEmit( p_intf, info[i]->signal, info[i]->i_node );
+                break;
+            case SIGNAL_RANDOM:
+            case SIGNAL_REPEAT:
+            case SIGNAL_LOOP:
+                StatusChangeEmit( p_intf );
+                break;
+            case SIGNAL_STATE:
+                StateChange( p_intf, info[i]->i_input_state );
+                break;
+            default:
+                assert(0);
+            }
+            free( info[i] );
+        }
+        vlc_restorecancel( canc );
     }
 }
 
+
+// Get all the callbacks
+static int AllCallback( vlc_object_t *p_this, const char *psz_var,
+                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
+{
+    (void)p_this;
+    (void)oldval;
+    intf_thread_t *p_intf = (intf_thread_t*)p_data;
+
+    callback_info_t *info = malloc( sizeof( callback_info_t ) );
+    if( !info )
+        return VLC_ENOMEM;
+
+    // Wich event is it ?
+    if( !strcmp( "item-current", psz_var ) )
+        info->signal = SIGNAL_ITEM_CURRENT;
+    else if( !strcmp( "intf-change", psz_var ) )
+        info->signal = SIGNAL_INTF_CHANGE;
+    else if( !strcmp( "playlist-item-append", psz_var ) )
+    {
+        info->signal = SIGNAL_PLAYLIST_ITEM_APPEND;
+        info->i_node = ((playlist_add_t*)newval.p_address)->i_node;
+    }
+    else if( !strcmp( "playlist-item-deleted", psz_var ) )
+        info->signal = SIGNAL_PLAYLIST_ITEM_DELETED;
+    else if( !strcmp( "random", psz_var ) )
+        info->signal = SIGNAL_RANDOM;
+    else if( !strcmp( "repeat", psz_var ) )
+        info->signal = SIGNAL_REPEAT;
+    else if( !strcmp( "loop", psz_var ) )
+        info->signal = SIGNAL_LOOP;
+    else if( !strcmp( "state", psz_var ) )
+    {
+        info->signal = SIGNAL_STATE;
+        info->i_input_state = newval.i_int;
+    }
+    else
+        assert(0);
+
+    // Append the event
+    vlc_mutex_lock( &p_intf->p_sys->lock );
+    vlc_array_append( p_intf->p_sys->p_events, info );
+    vlc_mutex_unlock( &p_intf->p_sys->lock );
+    return VLC_SUCCESS;
+}
+
+/******************************************************************************
+ * CapsChange: player capabilities change signal
+ *****************************************************************************/
+DBUS_SIGNAL( CapsChangeSignal )
+{
+    SIGNAL_INIT( "CapsChange" );
+    OUT_ARGUMENTS;
+
+    ADD_INT32( &((intf_thread_t*)p_data)->p_sys->i_caps );
+    SIGNAL_SEND;
+}
+
+/******************************************************************************
+ * TrackListChange: tracklist order / length change signal
+ *****************************************************************************/
+DBUS_SIGNAL( TrackListChangeSignal )
+{ /* emit the new tracklist lengh */
+    SIGNAL_INIT("TrackListChange");
+    OUT_ARGUMENTS;
+
+    playlist_t *p_playlist = pl_Hold( (vlc_object_t*) p_data );
+    dbus_int32_t i_elements = p_playlist->current.i_size;
+    pl_Release( (vlc_object_t*) p_data );
+
+    ADD_INT32( &i_elements );
+    SIGNAL_SEND;
+}
+
+/*****************************************************************************
+ * TrackListChangeEmit: Emits the TrackListChange signal
+ *****************************************************************************/
+/* FIXME: It is not called on tracklist reordering */
+static int TrackListChangeEmit( intf_thread_t *p_intf, int signal, int i_node )
+{
+    // "playlist-item-append"
+    if( signal == SIGNAL_PLAYLIST_ITEM_APPEND )
+    {
+        /* don't signal when items are added/removed in p_category */
+        playlist_t *p_playlist = pl_Hold( p_intf );
+        PL_LOCK;
+        playlist_item_t *p_item = playlist_ItemGetById( p_playlist, i_node );
+        assert( p_item );
+        while( p_item->p_parent )
+            p_item = p_item->p_parent;
+        if( p_item == p_playlist->p_root_category )
+        {
+            PL_UNLOCK;
+            pl_Release( p_intf );
+            return VLC_SUCCESS;
+        }
+        PL_UNLOCK;
+        pl_Release( p_intf );
+    }
+
+    if( p_intf->p_sys->b_dead )
+        return VLC_SUCCESS;
+
+    UpdateCaps( p_intf );
+    TrackListChangeSignal( p_intf->p_sys->p_conn, p_intf );
+    return VLC_SUCCESS;
+}
 /*****************************************************************************
  * TrackChange: Playlist item change callback
  *****************************************************************************/
@@ -751,6 +1024,8 @@ DBUS_SIGNAL( StatusChangeSignal )
     SIGNAL_INIT( "StatusChange" );
     OUT_ARGUMENTS;
 
+    /* we're called from a callback of input_thread_t, so it can not be
+     * destroyed before we return */
     MarshalStatus( (intf_thread_t*) p_data, &args );
 
     SIGNAL_SEND;
@@ -759,29 +1034,41 @@ DBUS_SIGNAL( StatusChangeSignal )
 /*****************************************************************************
  * StateChange: callback on input "state"
  *****************************************************************************/
-static int StateChange( vlc_object_t *p_this, const char* psz_var,
-            vlc_value_t oldval, vlc_value_t newval, void *p_data )
+//static int StateChange( vlc_object_t *p_this, const char* psz_var,
+//            vlc_value_t oldval, vlc_value_t newval, void *p_data )
+static int StateChange( intf_thread_t *p_intf, int i_input_state )
 {
-    intf_thread_t       *p_intf     = ( intf_thread_t* ) p_data;
     intf_sys_t          *p_sys      = p_intf->p_sys;
+    playlist_t          *p_playlist;
+    input_thread_t      *p_input;
+    input_item_t        *p_item;
 
-    if( p_this->b_dead )
+    if( p_intf->p_sys->b_dead )
         return VLC_SUCCESS;
 
-    if( !p_sys->b_meta_read && newval.i_int == PLAYING_S )
+    UpdateCaps( p_intf );
+
+    if( !p_sys->b_meta_read && i_input_state == PLAYING_S )
     {
-        input_item_t *p_item = input_GetItem( (input_thread_t*)p_this );
-        if( p_item )
+        p_playlist = pl_Hold( p_intf );
+        p_input = playlist_CurrentInput( p_playlist );
+        if( p_input )
         {
-            p_sys->b_meta_read = VLC_TRUE;
-            TrackChangeSignal( p_sys->p_conn, p_item );
+            p_item = input_GetItem( p_input );
+            if( p_item )
+            {
+                p_sys->b_meta_read = true;
+                TrackChangeSignal( p_sys->p_conn, p_item );
+            }
+            vlc_object_release( p_input );
         }
+        pl_Release( p_intf );
     }
 
-    if( newval.i_int == PLAYING_S || newval.i_int == PAUSE_S ||
-        newval.i_int == END_S )
+    if( i_input_state == PLAYING_S || i_input_state == PAUSE_S ||
+        i_input_state == END_S )
     {
-        StatusChangeSignal( p_sys->p_conn, (void*) p_intf );
+        StatusChangeSignal( p_sys->p_conn, p_intf );
     }
 
     return VLC_SUCCESS;
@@ -790,49 +1077,40 @@ static int StateChange( vlc_object_t *p_this, const char* psz_var,
 /*****************************************************************************
  * StatusChangeEmit: Emits the StatusChange signal
  *****************************************************************************/
-static int StatusChangeEmit( vlc_object_t *p_this, const char *psz_var,
-            vlc_value_t oldval, vlc_value_t newval, void *p_data )
+static int StatusChangeEmit( intf_thread_t * p_intf )
 {
-    if( p_this->b_dead )
+    if( p_intf->p_sys->b_dead )
         return VLC_SUCCESS;
 
-    StatusChangeSignal( ((intf_thread_t*)p_data)->p_sys->p_conn, p_data );
+    UpdateCaps( p_intf );
+    StatusChangeSignal( p_intf->p_sys->p_conn, p_intf );
     return VLC_SUCCESS;
 }
 
 /*****************************************************************************
- * TrackChange: callback on playlist "playlist-current"
+ * TrackChange: callback on playlist "item-current"
  *****************************************************************************/
-static int TrackChange( vlc_object_t *p_this, const char *psz_var,
-            vlc_value_t oldval, vlc_value_t newval, void *p_data )
+static int TrackChange( intf_thread_t *p_intf )
 {
-    intf_thread_t       *p_intf     = ( intf_thread_t* ) p_data;
     intf_sys_t          *p_sys      = p_intf->p_sys;
     playlist_t          *p_playlist;
     input_thread_t      *p_input    = NULL;
     input_item_t        *p_item     = NULL;
-    VLC_UNUSED( p_this ); VLC_UNUSED( psz_var );
-    VLC_UNUSED( oldval ); VLC_UNUSED( newval );
 
-    if( p_this->b_dead )
+    if( p_intf->p_sys->b_dead )
         return VLC_SUCCESS;
 
-    p_sys->b_meta_read = VLC_FALSE;
-
-    p_playlist = pl_Yield( p_intf );
-
-    p_input = p_playlist->p_input;
+    p_sys->b_meta_read = false;
 
+    p_playlist = pl_Hold( p_intf );
+    p_input = playlist_CurrentInput( p_playlist );
     if( !p_input )
     {
-        PL_UNLOCK;
-        pl_Release( p_playlist );
+        pl_Release( p_intf );
         return VLC_SUCCESS;
     }
 
-    vlc_object_yield( p_input );
-
-    pl_Release( p_playlist );
+    pl_Release( p_intf );
 
     p_item = input_GetItem( p_input );
     if( !p_item )
@@ -843,16 +1121,57 @@ static int TrackChange( vlc_object_t *p_this, const char *psz_var,
 
     if( input_item_IsPreparsed( p_item ) )
     {
-        p_sys->b_meta_read = VLC_TRUE;
+        p_sys->b_meta_read = true;
         TrackChangeSignal( p_sys->p_conn, p_item );
     }
 
-    var_AddCallback( p_input, "state", StateChange, p_intf );
+    var_AddCallback( p_input, "state", AllCallback, p_intf );
 
     vlc_object_release( p_input );
     return VLC_SUCCESS;
 }
 
+/*****************************************************************************
+ * UpdateCaps: update p_sys->i_caps
+ * This function have to be called with the playlist unlocked
+ ****************************************************************************/
+static int UpdateCaps( intf_thread_t* p_intf )
+{
+    intf_sys_t* p_sys = p_intf->p_sys;
+    dbus_int32_t i_caps = CAPS_CAN_HAS_TRACKLIST;
+    playlist_t* p_playlist = pl_Hold( p_intf );
+
+    PL_LOCK;
+    if( p_playlist->current.i_size > 0 )
+        i_caps |= CAPS_CAN_PLAY | CAPS_CAN_GO_PREV | CAPS_CAN_GO_NEXT;
+    PL_UNLOCK;
+
+    input_thread_t* p_input = playlist_CurrentInput( p_playlist );
+    if( p_input )
+    {
+        /* XXX: if UpdateCaps() is called too early, these are
+         * unconditionnaly true */
+        if( var_GetBool( p_input, "can-pause" ) )
+            i_caps |= CAPS_CAN_PAUSE;
+        if( var_GetBool( p_input, "can-seek" ) )
+            i_caps |= CAPS_CAN_SEEK;
+        vlc_object_release( p_input );
+    }
+
+    pl_Release( p_intf );
+
+    if( p_sys->b_meta_read )
+        i_caps |= CAPS_CAN_PROVIDE_METADATA;
+
+    if( i_caps != p_intf->p_sys->i_caps )
+    {
+        p_sys->i_caps = i_caps;
+        CapsChangeSignal( p_intf->p_sys->p_conn, (vlc_object_t*)p_intf );
+    }
+
+    return VLC_SUCCESS;
+}
+
 /*****************************************************************************
  * GetInputMeta: Fill a DBusMessage with the given input item metadata
  *****************************************************************************/
@@ -883,8 +1202,8 @@ static int GetInputMeta( input_item_t* p_input,
                         DBusMessageIter *args )
 {
     DBusMessageIter dict, dict_entry, variant;
-    /* We need the track length to be expressed in seconds
-     * instead of milliseconds */
+    /* We need the track length to be expressed in milli-seconds
+     * instead of µ-seconds */
     dbus_int64_t i_length = ( input_item_GetDuration( p_input ) / 1000 );
 
     const char* ppsz_meta_items[] =
@@ -892,7 +1211,7 @@ static int GetInputMeta( input_item_t* p_input,
     "title", "artist", "genre", "copyright", "album", "tracknum",
     "description", "rating", "date", "setting", "url", "language",
     "nowplaying", "publisher", "encodedby", "arturl", "trackid",
-    "status", "URI", "length", "video-codec", "audio-codec",
+    "status", "location", "length", "video-codec", "audio-codec",
     "video-bitrate", "audio-bitrate", "audio-samplerate"
     };
 
@@ -946,14 +1265,13 @@ static int MarshalStatus( intf_thread_t* p_intf, DBusMessageIter* args )
     playlist_t* p_playlist = NULL;
     input_thread_t* p_input = NULL;
 
-    p_playlist = pl_Yield( (vlc_object_t*) p_intf );
-    p_input = p_playlist->p_input;
+    p_playlist = pl_Hold( p_intf );
 
     i_state = 2;
+
+    p_input = playlist_CurrentInput( p_playlist );
     if( p_input )
     {
-        vlc_object_yield( p_input );
-
         var_Get( p_input, "state", &val );
         if( val.i_int >= END_S )
             i_state = 2;
@@ -961,20 +1279,16 @@ static int MarshalStatus( intf_thread_t* p_intf, DBusMessageIter* args )
             i_state = 1;
         else if( val.i_int <= PLAYING_S )
             i_state = 0;
-
         vlc_object_release( p_input );
     }
 
-    var_Get( p_playlist, "random", &val );
-    i_random = val.i_int;
+    i_random = var_CreateGetBool( p_playlist, "random" );
 
-    var_Get( p_playlist, "repeat", &val );
-    i_repeat = val.i_int;
+    i_repeat = var_CreateGetBool( p_playlist, "repeat" );
 
-    var_Get( p_playlist, "loop", &val );
-    i_loop = val.i_int;
+    i_loop = var_CreateGetBool( p_playlist, "loop" );
 
-    pl_Release( p_playlist );
+    pl_Release( p_intf );
 
     dbus_message_iter_open_container( args, DBUS_TYPE_STRUCT, NULL, &status );
     dbus_message_iter_append_basic( &status, DBUS_TYPE_INT32, &i_state );
@@ -984,5 +1298,4 @@ static int MarshalStatus( intf_thread_t* p_intf, DBusMessageIter* args )
     dbus_message_iter_close_container( args, &status );
 
     return VLC_SUCCESS;
-
 }