clock: Store calendar client in ClockData (#1516)

* clock: Store calendar client in ClockData

This simplifies the evolution calendar client architecture and makes the
popup show up faster, since we don't need to create a new one every time
we open it.

* clock: Fix calendar data refresh when opening popup

The calendar popup was not showing recently added Evolution
events/tasks. Added a refresh timeout call every time the calendar popup
opens. That way the popup opens immediately and the data is refresh
after a small delay.

5 files changed, 94 insertions, 55 deletions

diff --git a/applets/clock/calendar-client.c b/applets/clock/calendar-client.c
index 8bd9a2f3..562234fd 100644
--- a/applets/clock/calendar-client.c
+++ b/applets/clock/calendar-client.c
@@ -116,11 +116,6 @@ static void calendar_client_start_query (CalendarClient       *client,
 static void calendar_client_source_finalize (CalendarClientSource *source);
 static void calendar_client_query_finalize  (CalendarClientQuery  *query);
 
-static void
-calendar_client_update_appointments (CalendarClient *client);
-static void
-calendar_client_update_tasks (CalendarClient *client);
-
 enum
 {
   PROP_O,
@@ -1420,7 +1415,7 @@ calendar_client_start_query (CalendarClient       *client,
   }
 }
 
-static void
+void
 calendar_client_update_appointments (CalendarClient *client)
 {
   GSList *l;
@@ -1458,7 +1453,7 @@ calendar_client_update_appointments (CalendarClient *client)
 /* FIXME:
  * perhaps we should use evo's "hide_completed_tasks" pref?
  */
-static void
+void
 calendar_client_update_tasks (CalendarClient *client)
 {
   GSList *l;
diff --git a/applets/clock/calendar-client.h b/applets/clock/calendar-client.h
index 7747d23f..f74ac2c3 100644
--- a/applets/clock/calendar-client.h
+++ b/applets/clock/calendar-client.h
@@ -144,6 +144,9 @@ void            calendar_client_set_task_completed       (CalendarClient     *cl
 gboolean        calendar_client_create_task              (CalendarClient     *client,
 							  const char         *summary);
 
+void            calendar_client_update_appointments      (CalendarClient *client);
+void            calendar_client_update_tasks             (CalendarClient *client);
+
 void calendar_event_free (CalendarEvent *event);
 
 G_END_DECLS
diff --git a/applets/clock/calendar-window.c b/applets/clock/calendar-window.c
index ae9f1d7c..9f794dce 100644
--- a/applets/clock/calendar-window.c
+++ b/applets/clock/calendar-window.c
@@ -447,10 +447,6 @@ calendar_window_fill (CalendarWindow *calwin)
 	calwin->priv->calendar = calendar_window_create_calendar (calwin);
         gtk_widget_show (calwin->priv->calendar);
 
-#ifdef HAVE_EDS
-        /* Calendar client will be initialized later in calendar_window_pack_pim */
-#endif
-
 	if (!calwin->priv->invert_order) {
                 gtk_box_pack_start (GTK_BOX (vbox),
 				    calwin->priv->calendar, TRUE, FALSE, 0);
@@ -597,7 +593,8 @@ calendar_window_dispose (GObject *object)
 			calwin->priv->client_tasks_changed_id = 0;
 		}
 		g_signal_handlers_disconnect_by_data (calwin->priv->client, calwin);
-		g_object_unref (calwin->priv->client);
+
+		/* Client is owned by ClockData, don't unref it */
 		calwin->priv->client = NULL;
 	}
 #endif
@@ -714,12 +711,32 @@ calendar_window_new (time_t     *static_current_time,
 	return GTK_WIDGET (calwin);
 }
 
+#ifdef HAVE_EDS
+static void
+refresh_once (gpointer user_data)
+{
+	CalendarWindow *calwin = CALENDAR_WINDOW (user_data);
+	if (calwin->priv->client) {
+		calendar_client_update_appointments (calwin->priv->client);
+		calendar_client_update_tasks (calwin->priv->client);
+
+		handle_appointments_changed (calwin);
+		handle_tasks_changed (calwin);
+	}
+}
+#endif
+
 void
 calendar_window_refresh (CalendarWindow *calwin)
 {
 	g_return_if_fail (CALENDAR_IS_WINDOW (calwin));
 
 #ifdef HAVE_EDS
+	/* Reload evolution calendar data after a small delay to not slow down the UI */
+	if (calwin->priv->client) {
+		g_timeout_add_once (100, refresh_once, calwin);
+	}
+
 	if (calwin->priv->appointments_filter && calwin->priv->appointment_list)
 		gtk_tree_model_filter_refilter (calwin->priv->appointments_filter);
 
@@ -1137,30 +1154,22 @@ calendar_window_pack_pim (CalendarWindow *calwin,
 		return;
 	}
 
-	/* Initialize calendar client if not already done */
-	if (!calwin->priv->client && calwin->priv->settings) {
-		calwin->priv->client = calendar_client_new (calwin->priv->settings);
-
-		if (calwin->priv->client) {
-			if (show_calendar_events) {
-				calwin->priv->client_appointments_changed_id = g_signal_connect_swapped (calwin->priv->client,
-													 "appointments-changed",
-													 G_CALLBACK (handle_appointments_changed),
-													 calwin);
-			}
-			if (show_tasks) {
-				calwin->priv->client_tasks_changed_id = g_signal_connect_swapped (calwin->priv->client,
-												  "tasks-changed",
-												  G_CALLBACK (handle_tasks_changed),
-												  calwin);
-			}
+	/* Connect signals if client is available */
+	if (calwin->priv->client) {
+		if (show_calendar_events && calwin->priv->client_appointments_changed_id == 0) {
+			calwin->priv->client_appointments_changed_id = g_signal_connect_swapped (calwin->priv->client,
+											 "appointments-changed",
+											 G_CALLBACK (handle_appointments_changed),
+											 calwin);
+		}
+		if (show_tasks && calwin->priv->client_tasks_changed_id == 0) {
+			calwin->priv->client_tasks_changed_id = g_signal_connect_swapped (calwin->priv->client,
+										  "tasks-changed",
+										  G_CALLBACK (handle_tasks_changed),
+										  calwin);
 		}
 	}
 
-	if (!calwin->priv->client) {
-		g_warning ("Failed to create calendar client in calendar_window_pack_pim");
-		return;
-	}
 
 	/* Create and pack appointments list if enabled */
 	if (show_calendar_events) {
@@ -1187,28 +1196,6 @@ calendar_window_pack_pim (CalendarWindow *calwin,
 				    calwin->priv->task_list,
 				    TRUE, TRUE, 0);
 	}
-
-	/* Initialize calendar client with current date now that client is ready */
-	if (calwin->priv->client && calwin->priv->calendar) {
-		guint year, month, day;
-		gtk_calendar_get_date (GTK_CALENDAR (calwin->priv->calendar), &year, &month, &day);
-		/* Set a flag to indicate we're initializing to prevent redundant calls */
-		g_object_set_data (G_OBJECT (calwin), "initializing", GINT_TO_POINTER (1));
-
-		calendar_client_select_month (calwin->priv->client, month, year);
-		calendar_client_select_day (calwin->priv->client, day);
-
-		/* Clear the initialization flag and trigger initial load */
-		g_object_set_data (G_OBJECT (calwin), "initializing", GINT_TO_POINTER (0));
-
-		/* Now trigger the initial appointments and tasks load */
-		if (show_calendar_events) {
-			handle_appointments_changed (calwin);
-		}
-		if (show_tasks) {
-			handle_tasks_changed (calwin);
-		}
-	}
 }
 
 static gboolean
@@ -1742,4 +1729,28 @@ task_entry_activate_cb (GtkEntry       *entry,
         }
 }
 
+void
+calendar_window_set_client (CalendarWindow *calwin, CalendarClient *client)
+{
+	g_return_if_fail (CALENDAR_IS_WINDOW (calwin));
+	calwin->priv->client = client;
+
+	/* If we have a client, initialize the calendar data */
+	if (client && calwin->priv->calendar) {
+		guint year, month, day;
+		gtk_calendar_get_date (GTK_CALENDAR (calwin->priv->calendar), &year, &month, &day);
+
+		calendar_client_select_month (calwin->priv->client, month, year);
+		calendar_client_select_day (calwin->priv->client, day);
+
+		/* Trigger initial data load if widgets exist */
+		if (calwin->priv->appointment_list) {
+			handle_appointments_changed (calwin);
+		}
+		if (calwin->priv->task_list) {
+			handle_tasks_changed (calwin);
+		}
+	}
+}
+
 #endif /* HAVE_EDS */
diff --git a/applets/clock/calendar-window.h b/applets/clock/calendar-window.h
index e24fdfc3..226353ba 100644
--- a/applets/clock/calendar-window.h
+++ b/applets/clock/calendar-window.h
@@ -31,6 +31,10 @@
 #include <gtk/gtk.h>
 #include "clock-utils.h"
 
+#ifdef HAVE_EDS
+#include "calendar-client.h"
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -78,6 +82,10 @@ ClockFormat calendar_window_get_time_format (CalendarWindow *calwin);
 void       calendar_window_set_time_format  (CalendarWindow *calwin,
 					     ClockFormat     time_format);
 
+#ifdef HAVE_EDS
+void       calendar_window_set_client (CalendarWindow *calwin, CalendarClient *client);
+#endif
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/applets/clock/clock.c b/applets/clock/clock.c
index cc5ea999..2e26b39f 100644
--- a/applets/clock/clock.c
+++ b/applets/clock/clock.c
@@ -211,6 +211,10 @@ struct _ClockData {
         const gchar *weather_icon_name;
 
         GDBusProxy *system_manager_proxy;
+
+#ifdef HAVE_EDS
+        CalendarClient *calendar_client;
+#endif
 };
 
 /* Used to count the number of clock instances. It's there to know when we
@@ -828,6 +832,13 @@ destroy_clock (GtkWidget * widget, ClockData *cd)
                 cd->builder = NULL;
         }
 
+#ifdef HAVE_EDS
+        if (cd->calendar_client) {
+                g_object_unref (cd->calendar_client);
+                cd->calendar_client = NULL;
+        }
+#endif
+
         g_free (cd);
 }
 
@@ -887,6 +898,12 @@ create_calendar (ClockData *cd)
                                       cd->settings);
         g_free (prefs_path);
 
+#ifdef HAVE_EDS
+        if (cd->calendar_client) {
+                calendar_window_set_client (CALENDAR_WINDOW (window), cd->calendar_client);
+        }
+#endif
+
         calendar_window_set_show_weeks (CALENDAR_WINDOW (window),
                                         cd->showweek);
 
@@ -2763,6 +2780,11 @@ fill_clock_applet (MatePanelApplet *applet)
          * hibernate). */
         setup_monitor_for_resume (cd);
 
+#ifdef HAVE_EDS
+        /* Initialize persistent calendar client */
+        cd->calendar_client = calendar_client_new (cd->settings);
+#endif
+
         return TRUE;
 }