Move Shell search to GcalShellSearchProvider

Add a custom timeline to GcalShellSearchProvier and use
it to gather events.

Do a massive cleanup of unused APIs as well.

src/core/gcal-timeline.c

@@ -50,6 +50,8 @@ struct _GcalTimeline
   gchar              *filter;
 
   GHashTable         *calendars; /* GcalCalendar* -> GcalCalendarMonitor* */
+  gint                completed_calendars;
+
   GHashTable         *subscribers; /* GcalTimelineSubscriber* -> SubscriberData* */
   GcalRangeTree      *subscriber_ranges;
 
@@ -63,6 +65,7 @@ G_DEFINE_TYPE (GcalTimeline, gcal_timeline, G_TYPE_OBJECT)
 enum
 {
   PROP_0,
+  PROP_COMPLETE,
   PROP_CONTEXT,
   PROP_FILTER,
   N_PROPS
@@ -75,6 +78,33 @@ static GParamSpec *properties [N_PROPS] = { NULL, };
  * Auxiliary methods
  */
 
+static inline gboolean
+is_timeline_complete (GcalTimeline *self)
+{
+  return self->completed_calendars == g_hash_table_size (self->calendars);
+}
+
+static void
+reset_completed_calendars (GcalTimeline *self)
+{
+  gboolean was_complete = is_timeline_complete (self);
+
+  self->completed_calendars = 0;
+  if (is_timeline_complete (self) != was_complete)
+    g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_COMPLETE]);
+}
+
+static void
+increase_completed_calendars (GcalTimeline *self)
+{
+  self->completed_calendars++;
+
+  g_assert (self->completed_calendars <= g_hash_table_size (self->calendars));
+
+  if (is_timeline_complete (self))
+    g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_COMPLETE]);
+}
+
 static SubscriberData*
 subscriber_data_new (GcalTimelineSubscriber *subscriber)
 {
@@ -226,6 +256,8 @@ update_range (GcalTimeline *self)
     {
       GcalCalendarMonitor *monitor;
 
+      reset_completed_calendars (self);
+
       g_hash_table_iter_init (&iter, self->calendars);
       while (g_hash_table_iter_next (&iter, NULL, (gpointer*) &monitor))
         gcal_calendar_monitor_set_range (monitor, self->range_start, self->range_end);
@@ -357,6 +389,8 @@ update_calendar_monitor_filters (GcalTimeline *self)
   GcalCalendarMonitor *monitor;
   GHashTableIter iter;
 
+  reset_completed_calendars (self);
+
   g_hash_table_iter_init (&iter, self->calendars);
   while (g_hash_table_iter_next (&iter, NULL, (gpointer*) &monitor))
     gcal_calendar_monitor_set_filter (monitor, self->filter);
@@ -473,6 +507,17 @@ on_calendar_monitor_event_removed_cb (GcalCalendarMonitor *monitor,
   GCAL_EXIT;
 }
 
+static void
+on_calendar_monitor_completed_cb (GcalCalendarMonitor *monitor,
+                                  GcalTimeline        *self)
+{
+  GCAL_ENTRY;
+
+  increase_completed_calendars (self);
+
+  GCAL_EXIT;
+}
+
 static gboolean
 update_timeline_range_in_idle_cb (gpointer user_data)
 {
@@ -538,6 +583,10 @@ gcal_timeline_get_property (GObject    *object,
 
   switch (prop_id)
     {
+    case PROP_COMPLETE:
+      g_value_set_boolean (value, is_timeline_complete (self));
+      break;
+
     case PROP_CONTEXT:
       g_value_set_object (value, self->context);
       break;
@@ -584,6 +633,17 @@ gcal_timeline_class_init (GcalTimelineClass *klass)
   object_class->get_property = gcal_timeline_get_property;
   object_class->set_property = gcal_timeline_set_property;
 
+  /**
+   * GcalTimeline::complete:
+   *
+   * Whether all calendars in this timeline are completed.
+   */
+  properties[PROP_COMPLETE] = g_param_spec_boolean ("complete",
+                                                    "Complete",
+                                                    "Complete",
+                                                    FALSE,
+                                                    G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
   /**
    * GcalSearchEngine::context:
    *
@@ -664,6 +724,7 @@ gcal_timeline_add_calendar (GcalTimeline *self,
   g_signal_connect (monitor, "event-added", G_CALLBACK (on_calendar_monitor_event_added_cb), self);
   g_signal_connect (monitor, "event-updated", G_CALLBACK (on_calendar_monitor_event_updated_cb), self);
   g_signal_connect (monitor, "event-removed", G_CALLBACK (on_calendar_monitor_event_removed_cb), self);
+  g_signal_connect (monitor, "completed", G_CALLBACK (on_calendar_monitor_completed_cb), self);
   g_hash_table_insert (self->calendars, calendar, g_object_ref (monitor));
 
   if (self->range_start && self->range_end)
@@ -789,3 +850,11 @@ gcal_timeline_set_filter (GcalTimeline *self,
 
   GCAL_EXIT;
 }
+
+gboolean
+gcal_timeline_is_complete (GcalTimeline *self)
+{
+  g_return_val_if_fail (GCAL_IS_TIMELINE (self), FALSE);
+
+  return is_timeline_complete (self);
+}