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-rw-r--r--calendar/ChangeLog14
-rw-r--r--calendar/pcs/cal-backend-file.c93
2 files changed, 91 insertions, 16 deletions
diff --git a/calendar/ChangeLog b/calendar/ChangeLog
index 8887a33474..a3d1372fb0 100644
--- a/calendar/ChangeLog
+++ b/calendar/ChangeLog
@@ -1,3 +1,17 @@
+2001-08-29 Federico Mena Quintero <federico@ximian.com>
+
+ * pcs/cal-backend-file.c (cal_backend_file_remove_object): See if
+ the set of categories changed by using the removed_categories hash
+ table.
+ (cal_backend_file_init): Create a table of removed categories.
+ This allows us to notify if and only if the set of category
+ changes when an object is updated/removed, instead of
+ unconditionally notifying if an object is updated.
+ (cal_backend_file_update_objects): Only notify if the set of
+ categories really changed.
+ (update_categories_from_comp): Shuffle the categories between the
+ priv->categories and priv->removed_categories lists.
+
2001-08-28 Federico Mena Quintero <federico@ximian.com>
Fixes bug #7879, a query may receive an update notification from
diff --git a/calendar/pcs/cal-backend-file.c b/calendar/pcs/cal-backend-file.c
index 3817382a71..1313b22f12 100644
--- a/calendar/pcs/cal-backend-file.c
+++ b/calendar/pcs/cal-backend-file.c
@@ -66,8 +66,9 @@ struct _CalBackendFilePrivate {
GList *todos;
GList *journals;
- /* Hash table of live categories */
+ /* Hash table of live categories, and a temporary hash of removed categories */
GHashTable *categories;
+ GHashTable *removed_categories;
/* Idle handler for saving the calendar when it is dirty */
guint idle_id;
@@ -201,6 +202,7 @@ cal_backend_file_init (CalBackendFile *cbfile)
priv->journals = NULL;
priv->categories = g_hash_table_new (g_str_hash, g_str_equal);
+ priv->removed_categories = g_hash_table_new (g_str_hash, g_str_equal);
gtk_signal_connect (GTK_OBJECT (cbfile), "cal_added",
GTK_SIGNAL_FUNC (cal_added_cb), NULL);
@@ -331,6 +333,10 @@ cal_backend_file_destroy (GtkObject *object)
g_hash_table_destroy (priv->categories);
priv->categories = NULL;
+ g_hash_table_foreach (priv->removed_categories, free_category_cb, NULL);
+ g_hash_table_destroy (priv->removed_categories);
+ priv->removed_categories = NULL;
+
if (priv->icalcomp) {
icalcomponent_free (priv->icalcomp);
priv->icalcomp = NULL;
@@ -513,11 +519,24 @@ update_categories_from_comp (CalBackendFile *cbfile, CalComponent *comp, gboolea
if (c)
c->refcount++;
else {
- c = g_new (Category, 1);
- c->name = g_strdup (name);
- c->refcount = 1;
-
- g_hash_table_insert (priv->categories, c->name, c);
+ /* See if it was in the removed categories */
+
+ c = g_hash_table_lookup (priv->removed_categories, name);
+ if (c) {
+ /* Move it to the set of live categories */
+ g_assert (c->refcount == 0);
+ g_hash_table_remove (priv->removed_categories, c->name);
+
+ c->refcount = 1;
+ g_hash_table_insert (priv->categories, c->name, c);
+ } else {
+ /* Create a new category */
+ c = g_new (Category, 1);
+ c->name = g_strdup (name);
+ c->refcount = 1;
+
+ g_hash_table_insert (priv->categories, c->name, c);
+ }
}
} else {
/* Remove the category from the set --- it *must* have existed */
@@ -529,8 +548,7 @@ update_categories_from_comp (CalBackendFile *cbfile, CalComponent *comp, gboolea
if (c->refcount == 0) {
g_hash_table_remove (priv->categories, c->name);
- g_free (c->name);
- g_free (c);
+ g_hash_table_insert (priv->removed_categories, c->name, c);
}
}
}
@@ -548,7 +566,7 @@ add_component (CalBackendFile *cbfile, CalComponent *comp, gboolean add_to_tople
CalBackendFilePrivate *priv;
GList **list;
const char *uid;
-
+
priv = cbfile->priv;
switch (cal_component_get_vtype (comp)) {
@@ -1449,6 +1467,32 @@ notify_remove (CalBackendFile *cbfile, const char *uid)
}
}
+/* Used from g_hash_table_foreach_remove(); removes and frees a category */
+static gboolean
+remove_category_cb (gpointer key, gpointer value, gpointer data)
+{
+ Category *c;
+
+ c = value;
+ g_free (c->name);
+ g_free (c);
+
+ return TRUE;
+}
+
+/* Clears the table of removed categories */
+static void
+clean_removed_categories (CalBackendFile *cbfile)
+{
+ CalBackendFilePrivate *priv;
+
+ priv = cbfile->priv;
+
+ g_hash_table_foreach_remove (priv->removed_categories,
+ remove_category_cb,
+ NULL);
+}
+
/* Update_objects handler for the file backend. */
static gboolean
cal_backend_file_update_objects (CalBackend *backend, const char *calobj)
@@ -1460,6 +1504,7 @@ cal_backend_file_update_objects (CalBackend *backend, const char *calobj)
CalComponent *old_comp;
CalComponent *comp;
const char *comp_uid;
+ int old_n_categories, new_n_categories;
cbfile = CAL_BACKEND_FILE (backend);
priv = cbfile->priv;
@@ -1536,6 +1581,13 @@ cal_backend_file_update_objects (CalBackend *backend, const char *calobj)
return FALSE;
}
+ /* The list of removed categories must be empty because we are about to
+ * start a new scanning process.
+ */
+ g_assert (g_hash_table_size (priv->removed_categories) == 0);
+
+ old_n_categories = g_hash_table_size (priv->categories);
+
/* Update the component */
old_comp = lookup_component (cbfile, comp_uid);
@@ -1557,11 +1609,17 @@ cal_backend_file_update_objects (CalBackend *backend, const char *calobj)
add_component (cbfile, comp, TRUE);
}
+ new_n_categories = g_hash_table_size (priv->categories);
+
mark_dirty (cbfile);
- /* FIXME: do the notification asynchronously */
notify_update (cbfile, comp_uid);
- notify_categories_changed (cbfile);
+
+ if (old_n_categories != new_n_categories ||
+ g_hash_table_size (priv->removed_categories) != 0) {
+ clean_removed_categories (cbfile);
+ notify_categories_changed (cbfile);
+ }
return TRUE;
}
@@ -1573,7 +1631,6 @@ cal_backend_file_remove_object (CalBackend *backend, const char *uid)
CalBackendFile *cbfile;
CalBackendFilePrivate *priv;
CalComponent *comp;
- int old_n_categories, new_n_categories;
cbfile = CAL_BACKEND_FILE (backend);
priv = cbfile->priv;
@@ -1586,17 +1643,21 @@ cal_backend_file_remove_object (CalBackend *backend, const char *uid)
if (!comp)
return FALSE;
- old_n_categories = g_hash_table_size (priv->categories);
+ /* The list of removed categories must be empty because we are about to
+ * start a new scanning process.
+ */
+ g_assert (g_hash_table_size (priv->removed_categories) == 0);
+
remove_component (cbfile, comp);
- new_n_categories = g_hash_table_size (priv->categories);
mark_dirty (cbfile);
- /* FIXME: do the notification asynchronously */
notify_remove (cbfile, uid);
- if (old_n_categories != new_n_categories)
+ if (g_hash_table_size (priv->removed_categories) != 0) {
+ clean_removed_categories (cbfile);
notify_categories_changed (cbfile);
+ }
return TRUE;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-28 12:20:33 +0800