]> git.sesse.net Git - vlc/blobdiff - src/control/media_list_view.c
good
[vlc] / src / control / media_list_view.c
index c562a151e71aca87ea398a629b1f3733448c2d6b..4c830379fc5a8f6343c576482e8dec2a15bc3230 100644 (file)
@@ -3,7 +3,7 @@
  * media_list.c).
  *****************************************************************************
  * Copyright (C) 2007 the VideoLAN team
- * $Id: flat_media_list.c 21287 2007-08-20 01:28:12Z pdherbemont $
+ * $Id$
  *
  * Authors: Pierre d'Herbemont <pdherbemont # videolan.org>
  *
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  *****************************************************************************/
 
-#include "libvlc_internal.h"
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #include <vlc/libvlc.h>
-#include <assert.h>
-#include "vlc_arrays.h"
+#include <vlc/libvlc_media.h>
+#include <vlc/libvlc_media_list.h>
+#include <vlc/libvlc_media_list_view.h>
+#include <vlc/libvlc_events.h>
+
+#include "libvlc_internal.h"  // Abuse, could and should be removed
+
+#include "media_internal.h"  // Abuse, could and should be removed
+#include "media_list_internal.h"  // Abuse, could and should be removed
+#include "media_list_view_internal.h"
 
 //#define DEBUG_FLAT_LIST
 
  * Private functions
  */
 static void
+media_list_item_added( const libvlc_event_t * p_event, void * p_user_data );
+static void
 media_list_item_removed( const libvlc_event_t * p_event, void * p_user_data );
+static void
+media_list_subitem_added( const libvlc_event_t * p_event, void * p_user_data );
 
 static void
-media_list_item_added( const libvlc_event_t * p_event, void * p_user_data )
+install_md_listener( libvlc_media_list_view_t * p_mlv,
+                     libvlc_media_t * p_md)
 {
-    libvlc_media_list_view_t * p_mlv = p_user_data;
-    libvlc_media_descriptor_t * p_md = p_event->u.media_list_item_added.item;
     libvlc_media_list_t * p_mlist;
-    if((p_mlist = libvlc_media_descriptor_subitems( p_md, NULL )))
+    if((p_mlist = libvlc_media_subitems( p_md )))
     {
+        libvlc_media_list_lock( p_mlist );
+        int i, count = libvlc_media_list_count( p_mlist );
+        for( i = 0; i < count; i++)
+        {
+            libvlc_event_t added_event;
+            libvlc_media_t * p_submd;
+            p_submd = libvlc_media_list_item_at_index( p_mlist, i, NULL );
+
+            /* Install our listeners */
+            install_md_listener( p_mlv, p_submd );
+
+            /* For each item, send a notification to the mlv subclasses */
+            added_event.u.media_list_item_added.item = p_submd;
+            added_event.u.media_list_item_added.index = 0;
+            if( p_mlv->pf_ml_item_added ) p_mlv->pf_ml_item_added( &added_event, p_mlv );
+            libvlc_media_release( p_submd );
+        }
         libvlc_event_attach( p_mlist->p_event_manager,
                              libvlc_MediaListItemAdded,
-                             media_list_item_added, p_mlv, NULL );
+                             media_list_item_added, p_mlv );
         libvlc_event_attach( p_mlist->p_event_manager,
                              libvlc_MediaListItemDeleted,
-                             media_list_item_removed, p_mlv, NULL );
+                             media_list_item_removed, p_mlv );
+        libvlc_media_list_unlock( p_mlist );
+        libvlc_media_list_release( p_mlist );
+    }
+    else
+    {
+        /* No mlist, wait for a subitem added event */
+        libvlc_event_attach( p_md->p_event_manager,
+                            libvlc_MediaSubItemAdded,
+                            media_list_subitem_added, p_mlv );
+    }
+}
+
+static void
+uninstall_md_listener( libvlc_media_list_view_t * p_mlv,
+                       libvlc_media_t * p_md)
+{
+    libvlc_media_list_t * p_mlist;
+    libvlc_event_detach( p_md->p_event_manager,
+                         libvlc_MediaSubItemAdded,
+                         media_list_subitem_added, p_mlv );
+    if((p_mlist = libvlc_media_subitems( p_md )))
+    {
+        libvlc_media_list_lock( p_mlist );
+        libvlc_event_detach( p_mlist->p_event_manager,
+                             libvlc_MediaListItemAdded,
+                             media_list_item_added, p_mlv );
+        libvlc_event_detach( p_mlist->p_event_manager,
+                             libvlc_MediaListItemDeleted,
+                             media_list_item_removed, p_mlv );
+
+        int i, count = libvlc_media_list_count( p_mlist );
+        for( i = 0; i < count; i++)
+        {
+            libvlc_media_t * p_submd;
+            p_submd = libvlc_media_list_item_at_index( p_mlist,i, NULL );
+            uninstall_md_listener( p_mlv, p_submd );
+            libvlc_media_release( p_submd );
+        }
+        libvlc_media_list_unlock( p_mlist );
+        libvlc_media_list_release( p_mlist );
     }
-    if( p_mlv->pf_ml_item_added ) p_mlv->pf_ml_item_added( p_event, p_user_data );
+}
+
+static void
+media_list_item_added( const libvlc_event_t * p_event, void * p_user_data )
+{
+    libvlc_media_list_view_t * p_mlv = p_user_data;
+    libvlc_media_t * p_md = p_event->u.media_list_item_added.item;
+    install_md_listener( p_mlv, p_md );
+    if( p_mlv->pf_ml_item_added ) p_mlv->pf_ml_item_added( p_event, p_mlv );
 }
 
 static void
 media_list_item_removed( const libvlc_event_t * p_event, void * p_user_data )
 {
     libvlc_media_list_view_t * p_mlv = p_user_data;
-    libvlc_media_descriptor_t * p_md = p_event->u.media_list_item_added.item;
+    libvlc_media_t * p_md = p_event->u.media_list_item_added.item;
+    uninstall_md_listener( p_mlv, p_md );
+    if( p_mlv->pf_ml_item_removed ) p_mlv->pf_ml_item_removed( p_event, p_mlv );
+}
+
+static void
+media_list_subitem_added( const libvlc_event_t * p_event, void * p_user_data )
+{
     libvlc_media_list_t * p_mlist;
-    if((p_mlist = libvlc_media_descriptor_subitems( p_md, NULL )))
+    libvlc_event_t added_event;
+    libvlc_media_list_view_t * p_mlv = p_user_data;
+    libvlc_media_t * p_submd = p_event->u.media_subitem_added.new_child;
+    libvlc_media_t * p_md = p_event->p_obj;
+
+    if((p_mlist = libvlc_media_subitems( p_md )))
     {
+        /* We have a mlist to which we're going to listen to events
+         * thus, no need to wait for SubItemAdded events */
+        libvlc_event_detach( p_md->p_event_manager,
+                             libvlc_MediaSubItemAdded,
+                             media_list_subitem_added, p_mlv );
+        libvlc_media_list_lock( p_mlist );
+
         libvlc_event_attach( p_mlist->p_event_manager,
                              libvlc_MediaListItemAdded,
-                             media_list_item_added, p_mlv, NULL );
+                             media_list_item_added, p_mlv );
         libvlc_event_attach( p_mlist->p_event_manager,
                              libvlc_MediaListItemDeleted,
-                             media_list_item_removed, p_mlv, NULL );
+                             media_list_item_removed, p_mlv );
+        libvlc_media_list_unlock( p_mlist );
+        libvlc_media_list_release( p_mlist );
     }
-    if( p_mlv->pf_ml_item_removed ) p_mlv->pf_ml_item_removed( p_event, p_user_data );
-}
 
+    install_md_listener( p_mlv, p_submd );
+
+    added_event.u.media_list_item_added.item = p_submd;
+    added_event.u.media_list_item_added.index = 0;
+    if( p_mlv->pf_ml_item_added ) p_mlv->pf_ml_item_added( &added_event, p_mlv );
+}
 
 /*
  * LibVLC Internal functions
  */
+/**************************************************************************
+ *       libvlc_media_list_view_set_ml_notification_callback (Internal)
+ * The mlist lock should be held when entered
+ **************************************************************************/
 void
 libvlc_media_list_view_set_ml_notification_callback(
                 libvlc_media_list_view_t * p_mlv,
-                void (*item_added)(const libvlc_event_t *, void *),
-                void (*item_removed)(const libvlc_event_t *, void *) )
+                void (*item_added)(const libvlc_event_t *, libvlc_media_list_view_t *),
+                void (*item_removed)(const libvlc_event_t *, libvlc_media_list_view_t *) )
 {
     p_mlv->pf_ml_item_added = item_added;
     p_mlv->pf_ml_item_removed = item_removed;
     libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
                          libvlc_MediaListItemAdded,
-                         media_list_item_added, p_mlv, NULL );
+                         media_list_item_added, p_mlv );
     libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
                          libvlc_MediaListItemDeleted,
-                         media_list_item_removed, p_mlv, NULL );
+                         media_list_item_removed, p_mlv );
+    int i, count = libvlc_media_list_count( p_mlv->p_mlist );
+    for( i = 0; i < count; i++)
+    {
+        libvlc_media_t * p_md;
+        p_md = libvlc_media_list_item_at_index( p_mlv->p_mlist, i, NULL );
+        install_md_listener( p_mlv, p_md );
+        libvlc_media_release( p_md );
+    }
+}
+
+/**************************************************************************
+ *       libvlc_media_list_view_notify_deletion (Internal)
+ **************************************************************************/
+void
+libvlc_media_list_view_will_delete_item(
+                libvlc_media_list_view_t * p_mlv,
+                libvlc_media_t * p_item,
+                int index )
+{
+    libvlc_event_t event;
+
+    /* Construct the event */
+    event.type = libvlc_MediaListViewWillDeleteItem;
+    event.u.media_list_view_will_delete_item.item = p_item;
+    event.u.media_list_view_will_delete_item.index = index;
+
+    /* Send the event */
+    libvlc_event_send( p_mlv->p_event_manager, &event );
+}
+
+/**************************************************************************
+ *       libvlc_media_list_view_item_deleted (Internal)
+ **************************************************************************/
+void
+libvlc_media_list_view_item_deleted(
+                libvlc_media_list_view_t * p_mlv,
+                libvlc_media_t * p_item,
+                int index )
+{
+    libvlc_event_t event;
+
+    /* Construct the event */
+    event.type = libvlc_MediaListViewItemDeleted;
+    event.u.media_list_view_item_deleted.item = p_item;
+    event.u.media_list_view_item_deleted.index = index;
+
+    /* Send the event */
+    libvlc_event_send( p_mlv->p_event_manager, &event );
+}
+
+/**************************************************************************
+ *       libvlc_media_list_view_will_add_item (Internal)
+ **************************************************************************/
+void
+libvlc_media_list_view_will_add_item(
+                libvlc_media_list_view_t * p_mlv,
+                libvlc_media_t * p_item,
+                int index )
+{
+    libvlc_event_t event;
+
+    /* Construct the event */
+    event.type = libvlc_MediaListViewWillAddItem;
+    event.u.media_list_view_will_add_item.item = p_item;
+    event.u.media_list_view_will_add_item.index = index;
+
+    /* Send the event */
+    libvlc_event_send( p_mlv->p_event_manager, &event );
+}
+
+/**************************************************************************
+ *       libvlc_media_list_view_item_added (Internal)
+ **************************************************************************/
+void
+libvlc_media_list_view_item_added(
+                libvlc_media_list_view_t * p_mlv,
+                libvlc_media_t * p_item,
+                int index )
+{
+    libvlc_event_t event;
+
+    /* Construct the event */
+    event.type = libvlc_MediaListViewItemAdded;
+    event.u.media_list_view_item_added.item = p_item;
+    event.u.media_list_view_item_added.index = index;
+
+    /* Send the event */
+    libvlc_event_send( p_mlv->p_event_manager, &event );
 }
 
 /**************************************************************************
@@ -105,18 +301,35 @@ libvlc_media_list_view_new( libvlc_media_list_t * p_mlist,
                             libvlc_media_list_view_count_func_t pf_count,
                             libvlc_media_list_view_item_at_index_func_t pf_item_at_index,
                             libvlc_media_list_view_children_at_index_func_t pf_children_at_index,
+                            libvlc_media_list_view_constructor_func_t pf_constructor,
                             libvlc_media_list_view_release_func_t pf_release,
-                            void * this_view_data,
-                            libvlc_exception_t * p_e )
+                            void * this_view_data )
 {
     libvlc_media_list_view_t * p_mlv;
     p_mlv = calloc( 1, sizeof(libvlc_media_list_view_t) );
-    if( !p_mlv )
+    if( unlikely(p_mlv == NULL) )
+    {
+        libvlc_printerr( "Not enough memory" );
         return NULL;
+    }
 
     p_mlv->p_libvlc_instance = p_mlist->p_libvlc_instance;
     p_mlv->p_event_manager = libvlc_event_manager_new( p_mlist,
-                                    p_mlv->p_libvlc_instance, p_e );
+                                    p_mlv->p_libvlc_instance );
+    if( unlikely(p_mlv->p_event_manager == NULL) )
+    {
+        free(p_mlv);
+        return NULL;
+    }
+
+    libvlc_event_manager_register_event_type( p_mlv->p_event_manager,
+            libvlc_MediaListViewItemAdded );
+    libvlc_event_manager_register_event_type( p_mlv->p_event_manager,
+            libvlc_MediaListViewWillAddItem );
+    libvlc_event_manager_register_event_type( p_mlv->p_event_manager,
+            libvlc_MediaListViewItemDeleted );
+    libvlc_event_manager_register_event_type( p_mlv->p_event_manager,
+            libvlc_MediaListViewWillDeleteItem );
 
     libvlc_media_list_retain( p_mlist );
     p_mlv->p_mlist = p_mlist;
@@ -124,11 +337,12 @@ libvlc_media_list_view_new( libvlc_media_list_t * p_mlist,
     p_mlv->pf_count             = pf_count;
     p_mlv->pf_item_at_index     = pf_item_at_index;
     p_mlv->pf_children_at_index = pf_children_at_index;
+    p_mlv->pf_constructor       = pf_constructor;
     p_mlv->pf_release           = pf_release;
 
     p_mlv->p_this_view_data = this_view_data;
 
-    vlc_mutex_init( p_mlv->p_libvlc_instance->p_libvlc_int, &p_mlv->object_lock );
+    vlc_mutex_init( &p_mlv->object_lock );
     p_mlv->i_refcount = 1;
 
     return p_mlv;
@@ -166,21 +380,29 @@ libvlc_media_list_view_release( libvlc_media_list_view_t * p_mlv )
     vlc_mutex_unlock( &p_mlv->object_lock );
 
     /* Refcount null, time to free */
+    libvlc_media_list_lock( p_mlv->p_mlist );
 
     if( p_mlv->pf_ml_item_added )
     {
         libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
                             libvlc_MediaListItemAdded,
-                            p_mlv->pf_ml_item_added, p_mlv, NULL );
-        /* XXX: descend the whole tree and remove observer */
+                            media_list_item_added, p_mlv );
     }
     if( p_mlv->pf_ml_item_removed )
     {
         libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
                             libvlc_MediaListItemDeleted,
-                            p_mlv->pf_ml_item_removed, p_mlv, NULL );
-        /* XXX: descend the whole tree and remove observer */
+                            media_list_item_removed, p_mlv );
     }
+    int i, count = libvlc_media_list_count( p_mlv->p_mlist );
+    for( i = 0; i < count; i++)
+    {
+        libvlc_media_t * p_md;
+        p_md = libvlc_media_list_item_at_index( p_mlv->p_mlist, i, NULL );
+        uninstall_md_listener( p_mlv, p_md );
+        libvlc_media_release( p_md );
+    }
+    libvlc_media_list_unlock( p_mlv->p_mlist );
 
     libvlc_event_manager_release( p_mlv->p_event_manager );
 
@@ -189,6 +411,56 @@ libvlc_media_list_view_release( libvlc_media_list_view_t * p_mlv )
     vlc_mutex_destroy( &p_mlv->object_lock );
 }
 
+/**************************************************************************
+ *       libvlc_media_list_view_event_manager (Public)
+ **************************************************************************/
+libvlc_event_manager_t *
+libvlc_media_list_view_event_manager( libvlc_media_list_view_t * p_mlv )
+{
+    libvlc_event_manager_t * p_em;
+    vlc_mutex_lock( &p_mlv->object_lock );
+    p_em = p_mlv->p_event_manager;
+    vlc_mutex_unlock( &p_mlv->object_lock );
+    return p_em;
+}
+
+/**************************************************************************
+ *       libvlc_media_list_view_parent_media_list (Public)
+ **************************************************************************/
+libvlc_media_list_t *
+libvlc_media_list_view_parent_media_list( libvlc_media_list_view_t * p_mlv,
+                                         libvlc_exception_t * p_e)
+{
+    (void)p_e;
+    libvlc_media_list_t * p_mlist;
+    vlc_mutex_lock( &p_mlv->object_lock );
+    p_mlist = p_mlv->p_mlist;
+    libvlc_media_list_retain( p_mlv->p_mlist );
+    vlc_mutex_unlock( &p_mlv->object_lock );
+    return p_mlist;
+}
+
+/**************************************************************************
+ *       libvlc_media_list_view_children_for_item (Public)
+ **************************************************************************/
+libvlc_media_list_view_t *
+libvlc_media_list_view_children_for_item( libvlc_media_list_view_t * p_mlv,
+                                          libvlc_media_t * p_md,
+                                          libvlc_exception_t * p_e)
+{
+    (void)p_e;
+    libvlc_media_list_t * p_mlist;
+    libvlc_media_list_view_t * ret;
+
+    p_mlist = libvlc_media_subitems(p_md);
+    if(!p_mlist) return NULL;
+
+    ret = p_mlv->pf_constructor( p_mlist, p_e );
+    libvlc_media_list_release( p_mlist );
+
+    return ret;
+}
+
 /* Limited to four args, because it should be enough */
 
 #define AN_SELECT( collapser, dec1, dec2, dec3, dec4, p, ...) p
@@ -206,7 +478,8 @@ libvlc_media_list_view_release( libvlc_media_list_view_t * p_mlv )
     { \
         if( p_mlv->pf_##name ) \
             return p_mlv->pf_##name ARGS(__VA_ARGS__) ; \
-        libvlc_exception_raise( p_e, "No '" #name "' method in this media_list_view" ); \
+        libvlc_exception_raise( p_e ); \
+        libvlc_printerr( "No '" #name "' method in this media_list_view" ); \
         return default_ret_value;\
     }
 
@@ -221,11 +494,12 @@ libvlc_media_list_view_release( libvlc_media_list_view_t * p_mlv )
             p_mlv->pf_##name ARGS(__VA_ARGS__) ; \
             return; \
         } \
-        libvlc_exception_raise( p_e, "No '" #name "' method in this media_list_view" ); \
+        libvlc_exception_raise( p_e ); \
+        libvlc_printerr( "No '" #name "' method in this media_list_view" ); \
     }
 
 
 MEDIA_LIST_VIEW_FUNCTION( count, int, 0 )
-MEDIA_LIST_VIEW_FUNCTION( item_at_index, libvlc_media_descriptor_t *, NULL, int arg1 )
+MEDIA_LIST_VIEW_FUNCTION( item_at_index, libvlc_media_t *, NULL, int arg1 )
 MEDIA_LIST_VIEW_FUNCTION( children_at_index, libvlc_media_list_view_t *, NULL, int arg1 )