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Add GListModel

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GListModel is an interface that represents a dynamic list of GObjects.

Also add GListStore, a simple implementation of GListModel that stores
all objects in memory, using a GSequence.

https://bugzilla.gnome.org/show_bug.cgi?id=729351
This commit is contained in:
Lars Uebernickel
2014-05-01 20:04:32 +02:00
committed by Ryan Lortie
parent 6d55189d8c
commit b69beff426
10 changed files with 1004 additions and 0 deletions
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1
gio/tests/Makefile.am
View File

@@ -62,6 +62,7 @@ test_programs = \
tls-interaction \
vfs \
volumemonitor \
glistmodel \
$(NULL)
uninstalled_test_programs = \

132
gio/tests/glistmodel.c Normal file
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@@ -0,0 +1,132 @@
/*
* Copyright 2015 Lars Uebernickel
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* Authors: Lars Uebernickel <lars@uebernic.de>
*/
#include <gio/gio.h>
static void
test_store_boundaries (void)
{
GListStore *store;
GMenuItem *item;
store = g_list_store_new (G_TYPE_MENU_ITEM);
item = g_menu_item_new (NULL, NULL);
g_object_add_weak_pointer (G_OBJECT (item), (gpointer *) &item);
/* remove an item from an empty list */
g_test_expect_message (G_LOG_DOMAIN, G_LOG_LEVEL_CRITICAL, "*g_sequence*");
g_list_store_remove (store, 0);
g_test_assert_expected_messages ();
/* don't allow inserting an item past the end ... */
g_test_expect_message (G_LOG_DOMAIN, G_LOG_LEVEL_CRITICAL, "*g_sequence*");
g_list_store_insert (store, 1, item);
g_assert_cmpuint (g_list_model_get_n_items (G_LIST_MODEL (store)), ==, 0);
g_test_assert_expected_messages ();
/* ... except exactly at the end */
g_list_store_insert (store, 0, item);
g_assert_cmpuint (g_list_model_get_n_items (G_LIST_MODEL (store)), ==, 1);
/* remove a non-existing item at exactly the end of the list */
g_test_expect_message (G_LOG_DOMAIN, G_LOG_LEVEL_CRITICAL, "*g_sequence*");
g_list_store_remove (store, 1);
g_test_assert_expected_messages ();
g_list_store_remove (store, 0);
g_assert_cmpuint (g_list_model_get_n_items (G_LIST_MODEL (store)), ==, 0);
/* splice beyond the end of the list */
g_test_expect_message (G_LOG_DOMAIN, G_LOG_LEVEL_CRITICAL, "*position*");
g_list_store_splice (store, 1, 0, NULL, 0);
g_test_assert_expected_messages ();
/* remove items from an empty list */
g_test_expect_message (G_LOG_DOMAIN, G_LOG_LEVEL_CRITICAL, "*position*");
g_list_store_splice (store, 0, 1, NULL, 0);
g_test_assert_expected_messages ();
g_list_store_append (store, item);
g_list_store_splice (store, 0, 1, (gpointer *) &item, 1);
g_assert_cmpuint (g_list_model_get_n_items (G_LIST_MODEL (store)), ==, 1);
/* remove more items than exist */
g_test_expect_message (G_LOG_DOMAIN, G_LOG_LEVEL_CRITICAL, "*position*");
g_list_store_splice (store, 0, 5, NULL, 0);
g_test_assert_expected_messages ();
g_assert_cmpuint (g_list_model_get_n_items (G_LIST_MODEL (store)), ==, 1);
g_object_unref (store);
g_object_unref (item);
g_assert_null (item);
}
static void
test_store_refcounts (void)
{
GListStore *store;
GMenuItem *items[10];
GMenuItem *tmp;
guint i;
guint n_items;
store = g_list_store_new (G_TYPE_MENU_ITEM);
g_assert_cmpuint (g_list_model_get_n_items (G_LIST_MODEL (store)), ==, 0);
g_assert_null (g_list_model_get_item (G_LIST_MODEL (store), 0));
n_items = G_N_ELEMENTS (items);
for (i = 0; i < n_items; i++)
{
items[i] = g_menu_item_new (NULL, NULL);
g_object_add_weak_pointer (G_OBJECT (items[i]), (gpointer *) &items[i]);
g_list_store_append (store, items[i]);
g_object_unref (items[i]);
g_assert_nonnull (items[i]);
}
g_assert_cmpuint (g_list_model_get_n_items (G_LIST_MODEL (store)), ==, n_items);
g_assert_null (g_list_model_get_item (G_LIST_MODEL (store), n_items));
tmp = g_list_model_get_item (G_LIST_MODEL (store), 3);
g_assert (tmp == items[3]);
g_object_unref (tmp);
g_list_store_remove (store, 4);
g_assert_null (items[4]);
n_items--;
g_assert_cmpuint (g_list_model_get_n_items (G_LIST_MODEL (store)), ==, n_items);
g_assert_null (g_list_model_get_item (G_LIST_MODEL (store), n_items));
g_object_unref (store);
for (i = 0; i < G_N_ELEMENTS (items); i++)
g_assert_null (items[i]);
}
int main (int argc, char *argv[])
{
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/glistmodel/store/boundaries", test_store_boundaries);
g_test_add_func ("/glistmodel/store/refcounts", test_store_refcounts);
return g_test_run ();
}