include/vlc_input.h: Emit vlc_InputItemMetaChanged event.

include/vlc_events.h: Opt for the vlc_object_name_function_name naming scheme.

include/vlc_events.h

@@ -26,6 +26,7 @@
 # define VLC_EVENTS_H
 
 #include <vlc_arrays.h>
+#include <vlc_meta.h>
 
 /**
  * \file
@@ -115,11 +116,11 @@ typedef struct vlc_event_t
 {
     vlc_event_type_t type;
     void * p_obj; /* Sender object, automatically filled by event_Send() */
-    union event_type_specific
+    union vlc_event_type_specific
     {
-        struct
+        struct vlc_input_item_meta_changed
         {
-            int meta; /* One of the meta identified in include/vlc_meta.h */
+            vlc_meta_type_t meta_type;
         } input_item_meta_changed;
     } u;
 } vlc_event_t;
@@ -135,38 +136,40 @@ typedef void ( *vlc_event_callback_t )( const vlc_event_t *, void * );
  * p_obj points to the object that owns the event manager, and from
  * which events are sent
  */
-int event_manager_Create( vlc_event_manager_t * p_em, void * p_obj );
+VLC_EXPORT(int, vlc_event_manager_init, ( vlc_event_manager_t * p_em,
+                                          void * p_obj ));
 
 /*
  * Destroy
  */
-void event_manager_Destroy( vlc_event_manager_t * p_em );
+VLC_EXPORT(void, vlc_event_manager_fini, ( vlc_event_manager_t * p_em ));
 
 /*
  * Tells a specific event manager that it will handle event_type object
  */
-int event_manager_RegisterEventType( vlc_event_manager_t * p_em,
-                                     vlc_event_type_t event_type );
+VLC_EXPORT(int, vlc_event_manager_register_event_type,
+                ( vlc_event_manager_t * p_em, vlc_event_type_t event_type ));
 
 /*
  * Send an event to the listener attached to this p_em.
  */
-void event_Send( vlc_event_manager_t * p_em, vlc_event_t * p_event );
+VLC_EXPORT(void, vlc_event_send, ( vlc_event_manager_t * p_em,
+                                   vlc_event_t * p_event ));
 
 /*
  * Add a callback for an event.
  */
-int event_Attach( vlc_event_manager_t * p_event_manager,
-                  vlc_event_type_t event_type,
-                  vlc_event_callback_t pf_callback,
-                  void *p_user_data );
+VLC_EXPORT(int, vlc_event_attach, ( vlc_event_manager_t * p_event_manager,
+                                    vlc_event_type_t event_type,
+                                    vlc_event_callback_t pf_callback,
+                                    void *p_user_data ));
 
 /*
  * Remove a callback for an event.
  */
-int event_Detach( vlc_event_manager_t *p_event_manager,
-                   vlc_event_type_t event_type,
-                   vlc_event_callback_t pf_callback,
-                   void *p_user_data );
+VLC_EXPORT(int, vlc_event_detach, ( vlc_event_manager_t *p_event_manager,
+                                    vlc_event_type_t event_type,
+                                    vlc_event_callback_t pf_callback,
+                                     void *p_user_data ));
 
 #endif /* VLC_EVENTS_H */

include/vlc_input.h

@@ -33,6 +33,7 @@
 #include <vlc_es.h>
 #include <vlc_meta.h>
 #include <vlc_epg.h>
+#include <vlc_events.h>
 
 struct vlc_meta_t;
 
@@ -79,7 +80,9 @@ struct input_item_t
     int           i_nb_played;       /**< Number of times played */
 
     vlc_meta_t *p_meta;
-    
+
+    vlc_event_manager_t event_manager;
+
     vlc_mutex_t lock;                 /**< Lock for the item */
 };
 
@@ -111,6 +114,9 @@ static inline void input_ItemInit( vlc_object_t *p_o, input_item_t *p_i )
     p_i->p_meta = NULL;
 
     vlc_mutex_init( p_o, &p_i->lock );
+    vlc_event_manager_init( &p_i->event_manager, p_i );
+    vlc_event_manager_register_event_type( &p_i->event_manager,
+        vlc_InputItemMetaChanged );
 }
 
 static inline void input_ItemCopyOptions( input_item_t *p_parent,
@@ -135,6 +141,8 @@ static inline void input_ItemClean( input_item_t *p_i )
 {
     int i;
 
+    vlc_event_manager_fini( &p_i->event_manager );
+
     free( p_i->psz_name );
     free( p_i->psz_uri );
     if( p_i->p_stats )
@@ -187,9 +195,15 @@ static inline void input_ItemClean( input_item_t *p_i )
 
 static inline void input_item_SetMeta( input_item_t *p_i, vlc_meta_type_t meta_type, const char *psz_val )
 {
+    vlc_event_t event;
     if( !p_i->p_meta )
         p_i->p_meta = vlc_meta_New();
     vlc_meta_Set( p_i->p_meta, meta_type, psz_val );
+
+    /* Notify interested third parties */
+    event.type = vlc_InputItemMetaChanged;
+    event.u.input_item_meta_changed.meta_type = meta_type;
+    vlc_event_send( &p_i->event_manager, &event );
 }
 
 static inline const char * input_item_GetMeta( input_item_t *p_i, vlc_meta_type_t meta_type )

src/misc/events.c

@@ -68,7 +68,7 @@ typedef struct vlc_event_listeners_group_t
  * necessarily a vlc_object_t (an input_item_t is not a vlc_object_t
  * for instance).
  */
-int event_manager_Create( vlc_event_manager_t * p_em, void * p_obj )
+int vlc_event_manager_init( vlc_event_manager_t * p_em, void * p_obj )
 {
     p_em->p_obj = p_obj;
     ARRAY_INIT( p_em->listeners_groups );
@@ -78,7 +78,7 @@ int event_manager_Create( vlc_event_manager_t * p_em, void * p_obj )
 /**
  * Destroy the event manager
  */
-void event_manager_Destroy( vlc_event_manager_t * p_em )
+void vlc_event_manager_fini( vlc_event_manager_t * p_em )
 {
     struct vlc_event_listeners_group_t * listeners_group;
     struct vlc_event_listener_t * listener;
@@ -95,7 +95,7 @@ void event_manager_Destroy( vlc_event_manager_t * p_em )
 /**
  * Destroy the event manager
  */
-int event_manager_RegisterEventType(
+int vlc_event_manager_register_event_type(
         vlc_event_manager_t * p_em,
         vlc_event_type_t event_type )
 {
@@ -116,8 +116,8 @@ int event_manager_RegisterEventType(
 /**
  * Send an event to the listener attached to this p_em.
  */
-void event_Send( vlc_event_manager_t * p_em,
-                 vlc_event_t * p_event )
+void vlc_event_send( vlc_event_manager_t * p_em,
+                     vlc_event_t * p_event )
 {
     vlc_event_listeners_group_t * listeners_group;
     vlc_event_listener_t * listener;
@@ -140,10 +140,10 @@ void event_Send( vlc_event_manager_t * p_em,
 /**
  * Add a callback for an event.
  */
-int event_Attach( vlc_event_manager_t * p_event_manager,
-                  vlc_event_type_t event_type,
-                  vlc_event_callback_t pf_callback,
-                  void *p_user_data )
+int vlc_event_attach( vlc_event_manager_t * p_event_manager,
+                      vlc_event_type_t event_type,
+                      vlc_event_callback_t pf_callback,
+                      void *p_user_data )
 {
     vlc_event_listeners_group_t * listeners_group;
     vlc_event_listener_t * listener;
@@ -169,10 +169,10 @@ int event_Attach( vlc_event_manager_t * p_event_manager,
 /**
  * Remove a callback for an event.
  */
-int event_Detach( vlc_event_manager_t *p_event_manager,
-                   vlc_event_type_t event_type,
-                   vlc_event_callback_t pf_callback,
-                   void *p_user_data )
+int vlc_event_detach( vlc_event_manager_t *p_event_manager,
+                      vlc_event_type_t event_type,
+                      vlc_event_callback_t pf_callback,
+                      void *p_user_data )
 {
     vlc_event_listeners_group_t * listeners_group;
     struct vlc_event_listener_t * listener;