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a11y: Avoid signal emission during cache population

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If we're responding to a request to get all the cached items, there's no
need to emit signals when adding an ATContext to the cache.
This commit is contained in:
Emmanuele Bassi 2021-01-21 16:31:28 +00:00
parent 40446201ff
commit 0bde58ffd7
1 changed files with 15 additions and 1 deletions
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16
gtk/a11y/gtkatspicache.c
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@ -58,6 +58,9 @@ struct _GtkAtSpiCache
/* HashTable<GtkAtSpiContext, str> */
GHashTable *contexts_to_path;
/* Re-entrancy guard */
gboolean in_get_items;
};
enum
@ -250,10 +253,17 @@ handle_cache_method (GDBusConnection *connection,
{
GVariantBuilder builder = G_VARIANT_BUILDER_INIT (G_VARIANT_TYPE ("(" GET_ITEMS_SIGNATURE ")"));
/* Prevent the emission os signals while collecting accessible
* objects as the result of walking the accessible tree
*/
self->in_get_items = TRUE;
g_variant_builder_open (&builder, G_VARIANT_TYPE (GET_ITEMS_SIGNATURE));
collect_cached_objects (self, &builder);
g_variant_builder_close (&builder);
self->in_get_items = FALSE;
g_dbus_method_invocation_return_value (invocation, g_variant_builder_end (&builder));
}
}
@ -371,7 +381,11 @@ gtk_at_spi_cache_add_context (GtkAtSpiCache *self,
GTK_NOTE (A11Y, g_message ("Adding context '%s' to cache", path_key));
emit_add_accessible (self, context);
/* GetItems is safe from re-entrancy, but we still don't want to
* emit an unnecessary signal while we're collecting ATContexts
*/
if (!self->in_get_items)
emit_add_accessible (self, context);
}
void