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Viewing changes to src/hudappindicatorsource.c

  • Committer: Ryan Lortie
  • Date: 2012-03-15 18:25:50 UTC
  • Revision ID: desrt@desrt.ca-20120315182550-vafhb1snbn5hxigs
hud-service: hudsource: add a concept of "use count"

Add hud_source_use() and hud_source_unuse() to indicate to a HudSource
that an active query is being performed against it.

This is wired up all the way through to the level of the collectors but
it does not yet do anything there.  Stay tuned.

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Lines of Context:
src/hudappindicatorsource.c
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  GSequence    *indicators;
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  guint         subscription;
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  GCancellable *cancellable;
 
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  gint          use_count;
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  gboolean      ready;
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};
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                                                       dbus_name, dbus_path);
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  g_signal_connect (collector, "changed", G_CALLBACK (hud_app_indicator_source_collector_changed), source);
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  /* If query is active, mark new app indicator as used. */
 
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  if (source->use_count)
 
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    hud_source_use (HUD_SOURCE (collector));
 
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  iter = g_sequence_get_iter_at_pos (source->indicators, position);
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  g_sequence_insert_before (iter, collector);
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  g_free (title);
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      collector = g_sequence_get (iter);
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      g_signal_handlers_disconnect_by_func (collector, hud_app_indicator_source_collector_changed, source);
 
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      /* Drop use count if we added one... */
 
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      if (source->use_count)
 
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        hud_source_unuse (HUD_SOURCE (collector));
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      g_sequence_remove (iter);
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    }
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}
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}
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static void
 
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hud_app_indicator_source_use (HudSource *hud_source)
 
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{
 
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  HudAppIndicatorSource *source = HUD_APP_INDICATOR_SOURCE (hud_source);
 
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  if (source->use_count == 0)
 
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    g_sequence_foreach (source->indicators, (GFunc) hud_source_use, NULL);
 
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  source->use_count++;
 
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}
 
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static void
 
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hud_app_indicator_source_unuse (HudSource *hud_source)
 
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{
 
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  HudAppIndicatorSource *source = HUD_APP_INDICATOR_SOURCE (hud_source);
 
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  g_return_if_fail (source->use_count > 0);
 
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  source->use_count--;
 
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  if (source->use_count == 0)
 
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    g_sequence_foreach (source->indicators, (GFunc) hud_source_unuse, NULL);
 
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}
 
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static void
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hud_app_indicator_source_search (HudSource   *hud_source,
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                                 GPtrArray   *results_array,
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                                 const gchar *search_string)
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static void
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hud_app_indicator_source_iface_init (HudSourceInterface *iface)
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{
 
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  iface->use = hud_app_indicator_source_use;
 
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  iface->unuse = hud_app_indicator_source_unuse;
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  iface->search = hud_app_indicator_source_search;
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}
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