[gnome-calendar] event: fix various reference ownership issues

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 5a0a3fcd9c844a9d98ecf562d82066d6dae6bfec
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Fri Sep 8 22:25:18 2017 -0300

    event: fix various reference ownership issues

 src/gcal-event.c           |    8 +++++++-
 src/gcal-utils.h           |    1 +
 src/gcal-window.c          |   24 ++++++------------------
 src/views/gcal-year-view.c |    4 ++--
 4 files changed, 16 insertions(+), 21 deletions(-)
---
diff --git a/src/gcal-event.c b/src/gcal-event.c
index 38cd464..e3dd041 100644
--- a/src/gcal-event.c
+++ b/src/gcal-event.c
@@ -147,7 +147,7 @@ G_DEFINE_CONSTRUCTOR (init_event_cache_map);
 static void
 init_event_cache_map (void)
 {
-  event_cache = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, g_object_unref);
+  event_cache = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, NULL);
 }
 
 G_DEFINE_DESTRUCTOR (destroy_event_cache_map);
@@ -155,6 +155,12 @@ G_DEFINE_DESTRUCTOR (destroy_event_cache_map);
 static void
 destroy_event_cache_map (void)
 {
+  GList *events;
+
+  /* Destroy all events */
+  events = g_hash_table_get_values (event_cache);
+  g_list_free_full (events, g_object_unref);
+
   g_hash_table_destroy (event_cache);
 }
 
diff --git a/src/gcal-utils.h b/src/gcal-utils.h
index 4499e32..94ab46e 100644
--- a/src/gcal-utils.h
+++ b/src/gcal-utils.h
@@ -32,6 +32,7 @@
 #define MAX_MINUTES     (7 * MINUTES_PER_DAY)
 
 #define gcal_clear_datetime(dt) g_clear_pointer (dt, g_date_time_unref)
+#define gcal_clear_timeout(pp) { if (pp && *pp) { g_source_remove (*pp); *pp = 0; } }
 
 /**
  * GcalWindowViewType:
diff --git a/src/gcal-window.c b/src/gcal-window.c
index 0802a62..18253b1 100644
--- a/src/gcal-window.c
+++ b/src/gcal-window.c
@@ -1283,23 +1283,11 @@ gcal_window_finalize (GObject *object)
 
   GCAL_ENTRY;
 
-  if (window->save_geometry_timeout_id > 0)
-    {
-      g_source_remove (window->save_geometry_timeout_id);
-      window->save_geometry_timeout_id = 0;
-    }
+  g_critical ("Finalizing");
 
-  if (window->open_edit_dialog_timeout_id > 0)
-    {
-      g_source_remove (window->open_edit_dialog_timeout_id);
-      window->open_edit_dialog_timeout_id = 0;
-    }
-
-  if (window->refresh_timeout_id > 0)
-    {
-      g_source_remove (window->refresh_timeout_id);
-      window->refresh_timeout_id = 0;
-    }
+  gcal_clear_timeout (&window->save_geometry_timeout_id);
+  gcal_clear_timeout (&window->open_edit_dialog_timeout_id);
+  gcal_clear_timeout (&window->refresh_timeout_id);
 
   /* If we have a queued event to delete, remove it now */
   if (window->event_to_delete)
@@ -1308,7 +1296,7 @@ gcal_window_finalize (GObject *object)
       g_clear_object (&window->event_to_delete);
     }
 
-  if (window->event_creation_data != NULL)
+  if (window->event_creation_data)
     {
       g_clear_pointer (&window->event_creation_data->start_date, g_date_time_unref);
       g_clear_pointer (&window->event_creation_data->end_date, g_date_time_unref);
@@ -1318,7 +1306,7 @@ gcal_window_finalize (GObject *object)
   g_clear_object (&window->manager);
   g_clear_object (&window->views_switcher);
 
-  g_free (window->active_date);
+  g_clear_pointer (&window->active_date, g_free);
 
   G_OBJECT_CLASS (gcal_window_parent_class)->finalize (object);
 
diff --git a/src/views/gcal-year-view.c b/src/views/gcal-year-view.c
index 63cf9f0..b0e786e 100644
--- a/src/views/gcal-year-view.c
+++ b/src/views/gcal-year-view.c
@@ -1842,7 +1842,7 @@ gcal_year_view_component_added (ECalDataModelSubscriber *subscriber,
 
   /* Add the event to the cache */
   for (i = start_month; i <= end_month; i++)
-    g_ptr_array_add (self->events[i], event);
+    g_ptr_array_add (self->events[i], g_object_ref (event));
 
   update_sidebar (self);
 
@@ -2015,7 +2015,7 @@ gcal_year_view_init (GcalYearView *self)
   guint i;
 
   for (i = 0; i < 12; i++)
-    self->events[i] = g_ptr_array_new ();
+    self->events[i] = g_ptr_array_new_with_free_func (g_object_unref);
 
   gtk_widget_init_template (GTK_WIDGET (self));