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authorAlexander Mikhaylenko <alexm@gnome.org>2020-12-14 18:53:00 +0500
committerAlexander Mikhaylenko <alexm@gnome.org>2020-12-14 18:53:00 +0500
commit29c49e085dd3075c1f05766a52ebaa31db2918c6 (patch)
tree88b629fb70d603207a6b010701b5f0f474e69d7b
parente2afb59a0b84b13c59216379b10e08c43398d82f (diff)
downloadgtk+-29c49e085dd3075c1f05766a52ebaa31db2918c6.tar.gz
tests: Add a nested scrolling test
-rw-r--r--tests/meson.build1
-rw-r--r--tests/testnestedscrolling.c122
2 files changed, 123 insertions, 0 deletions
diff --git a/tests/meson.build b/tests/meson.build
index 51b2311a80..87b18f4916 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -59,6 +59,7 @@ gtk_tests = [
['testlockbutton'],
['testmenubutton'],
['testmountoperation'],
+ ['testnestedscrolling'],
['testnotebookdnd'],
['testnouiprint'],
['testoverlay'],
diff --git a/tests/testnestedscrolling.c b/tests/testnestedscrolling.c
new file mode 100644
index 0000000000..baf8c076a1
--- /dev/null
+++ b/tests/testnestedscrolling.c
@@ -0,0 +1,122 @@
+#include <gtk/gtk.h>
+
+/* This is the function that creates the #GListModel that we need.
+ * GTK list widgets need a #GListModel to display, as models support change
+ * notifications.
+ * Unfortunately various older APIs do not provide list models, so we create
+ * our own.
+ */
+static GListModel *
+create_application_list (void)
+{
+ GListStore *store;
+ GList *apps, *l;
+
+ /* We use a #GListStore here, which is a simple array-like list implementation
+ * for manual management.
+ * List models need to know what type of data they provide, so we need to
+ * provide the type here. As we want to do a list of applications, #GAppInfo
+ * is the object we provide.
+ */
+ store = g_list_store_new (G_TYPE_APP_INFO);
+
+ apps = g_app_info_get_all ();
+
+ for (l = apps; l; l = l->next)
+ g_list_store_append (store, l->data);
+
+ g_list_free_full (apps, g_object_unref);
+
+ return G_LIST_MODEL (store);
+}
+
+static void
+setup_list_item (GtkSignalListItemFactory *factory,
+ GtkListItem *list_item)
+{
+ GtkWidget *label = gtk_label_new (NULL);
+
+ gtk_widget_set_margin_top (label, 6);
+ gtk_widget_set_margin_bottom (label, 6);
+
+ gtk_list_item_set_child (list_item, label);
+}
+
+static void
+bind_list_item (GtkSignalListItemFactory *factory,
+ GtkListItem *list_item)
+{
+ GtkWidget *label;
+ gpointer item;
+ const char *s;
+
+ item = gtk_list_item_get_item (list_item);
+
+ if (item)
+ s = g_app_info_get_name (G_APP_INFO (item));
+ else
+ s = NULL;
+
+ label = gtk_list_item_get_child (list_item);
+ gtk_label_set_text (GTK_LABEL (label), s);
+}
+
+static void
+on_application_activate (GtkApplication *app)
+{
+ GtkWidget *window, *swindow, *box;
+ gint i = 0;
+
+ window = gtk_application_window_new (app);
+ gtk_window_set_default_size (GTK_WINDOW (window), 800, 600);
+
+ swindow = gtk_scrolled_window_new ();
+ gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow), GTK_POLICY_AUTOMATIC, GTK_POLICY_NEVER);
+ gtk_window_set_child (GTK_WINDOW (window), swindow);
+
+ box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+ gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (swindow), box);
+
+ for (i = 0; i < 20; i++)
+ {
+ GtkWidget *list, *separator;
+ GtkSelectionModel *model;
+ GtkListItemFactory *factory;
+
+ if (i > 0)
+ {
+ separator = gtk_separator_new (GTK_ORIENTATION_VERTICAL);
+ gtk_box_append (GTK_BOX (box), separator);
+ }
+
+ swindow = gtk_scrolled_window_new ();
+ gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
+ gtk_box_append (GTK_BOX (box), swindow);
+
+ model = GTK_SELECTION_MODEL (gtk_single_selection_new (create_application_list ()));
+ factory = gtk_signal_list_item_factory_new ();
+ g_signal_connect (factory, "setup", G_CALLBACK (setup_list_item), NULL);
+ g_signal_connect (factory, "bind", G_CALLBACK (bind_list_item), NULL);
+
+ list = gtk_list_view_new (model, factory);
+ gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (swindow), list);
+ }
+
+ gtk_window_present (GTK_WINDOW (window));
+}
+
+int
+main (int argc, char *argv[])
+{
+ GtkApplication *application = gtk_application_new ("org.gtk.test.nestedscrolling",
+ G_APPLICATION_FLAGS_NONE);
+ int result;
+
+ g_signal_connect (application, "activate",
+ G_CALLBACK (on_application_activate), NULL);
+
+ result = g_application_run (G_APPLICATION (application), argc, argv);
+ g_object_unref (application);
+
+ return result;
+}