diff options
Diffstat (limited to 'libnautilus-private/nautilus-progress-info-manager.c')
| -rw-r--r-- | libnautilus-private/nautilus-progress-info-manager.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/libnautilus-private/nautilus-progress-info-manager.c b/libnautilus-private/nautilus-progress-info-manager.c index 5dc26d1b0..29046c933 100644 --- a/libnautilus-private/nautilus-progress-info-manager.c +++ b/libnautilus-private/nautilus-progress-info-manager.c @@ -26,10 +26,12 @@ struct _NautilusProgressInfoManagerPriv { GList *progress_infos; + GList *current_viewers; }; enum { NEW_PROGRESS_INFO, + HAS_VIEWERS_CHANGED, LAST_SIGNAL }; @@ -40,15 +42,23 @@ static guint signals[LAST_SIGNAL] = { 0, }; G_DEFINE_TYPE (NautilusProgressInfoManager, nautilus_progress_info_manager, G_TYPE_OBJECT); +static void remove_viewer (NautilusProgressInfoManager *self, GObject *viewer); + static void nautilus_progress_info_manager_finalize (GObject *obj) { + GList *l; NautilusProgressInfoManager *self = NAUTILUS_PROGRESS_INFO_MANAGER (obj); if (self->priv->progress_infos != NULL) { g_list_free_full (self->priv->progress_infos, g_object_unref); } + for (l = self->priv->current_viewers; l != NULL; l = l->next) { + g_object_weak_unref (l->data, (GWeakNotify) remove_viewer, self); + } + g_list_free (self->priv->current_viewers); + G_OBJECT_CLASS (nautilus_progress_info_manager_parent_class)->finalize (obj); } @@ -98,6 +108,15 @@ nautilus_progress_info_manager_class_init (NautilusProgressInfoManagerClass *kla 1, NAUTILUS_TYPE_PROGRESS_INFO); + signals[HAS_VIEWERS_CHANGED] = + g_signal_new ("has-viewers-changed", + G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST, + 0, NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, + 0); + g_type_class_add_private (klass, sizeof (NautilusProgressInfoManagerPriv)); } @@ -160,3 +179,46 @@ nautilus_progress_manager_are_all_infos_finished_or_cancelled (NautilusProgressI return TRUE; } + +static void +remove_viewer (NautilusProgressInfoManager *self, + GObject *viewer) +{ + self->priv->current_viewers = g_list_remove (self->priv->current_viewers, viewer); + + if (self->priv->current_viewers == NULL) + g_signal_emit (self, signals[HAS_VIEWERS_CHANGED], 0); +} + +void +nautilus_progress_manager_add_viewer (NautilusProgressInfoManager *self, + GObject *viewer) +{ + GList *viewers; + + viewers = self->priv->current_viewers; + if (g_list_find (viewers, viewer) == NULL) { + g_object_weak_ref (viewer, (GWeakNotify) remove_viewer, self); + viewers = g_list_append (viewers, viewer); + self->priv->current_viewers = viewers; + + if (g_list_length (viewers) == 1) + g_signal_emit (self, signals[HAS_VIEWERS_CHANGED], 0); + } +} + +void +nautilus_progress_manager_remove_viewer (NautilusProgressInfoManager *self, + GObject *viewer) +{ + if (g_list_find (self->priv->current_viewers, viewer) != NULL) { + g_object_weak_unref (viewer, (GWeakNotify) remove_viewer, self); + remove_viewer (self, viewer); + } +} + +gboolean +nautilus_progress_manager_has_viewers (NautilusProgressInfoManager *self) +{ + return self->priv->current_viewers != NULL; +} |