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a11y: Emit ChildrenChanged for toplevel list changes

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GtkAtSpiRoot is not a context, which means it needs to emit
ChildrenChanged events by itself whenever a toplevel is added to, or
removed from, the list of toplevels.
This commit is contained in:
Emmanuele Bassi 2020-10-21 15:37:57 +01:00
parent 698cbee1fb
commit e45dd771db
1 changed files with 43 additions and 0 deletions
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43
gtk/a11y/gtkatspiroot.c
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@ -405,6 +405,46 @@ static const GDBusInterfaceVTable root_accessible_vtable = {
NULL,
};
static void
root_toplevels__items_changed (GtkAtSpiRoot *self,
guint position,
guint removed,
guint added,
GListModel *toplevels)
{
GtkWidget *window = g_list_model_get_item (self->toplevels, position);
GVariant *window_ref = NULL;
if (window == NULL)
{
window_ref = gtk_at_spi_null_ref ();
}
else
{
GtkATContext *context = gtk_accessible_get_at_context (GTK_ACCESSIBLE (window));
window_ref = gtk_at_spi_context_to_ref (GTK_AT_SPI_CONTEXT (context));
}
if (added == 1 && removed == 0)
gtk_at_spi_emit_children_changed (self->connection,
self->root_path,
GTK_ACCESSIBLE_CHILD_STATE_ADDED,
position,
gtk_at_spi_root_to_ref (self),
window_ref);
else if (removed == 1 && added == 0)
gtk_at_spi_emit_children_changed (self->connection,
self->root_path,
GTK_ACCESSIBLE_CHILD_STATE_REMOVED,
position,
gtk_at_spi_root_to_ref (self),
window_ref);
if (window != NULL)
g_object_unref (window);
}
static void
on_registration_reply (GObject *gobject,
GAsyncResult *result,
@ -439,6 +479,9 @@ on_registration_reply (GObject *gobject,
/* Monitor the top levels */
self->toplevels = gtk_window_get_toplevels ();
g_signal_connect_swapped (self->toplevels, "items-changed",
G_CALLBACK (root_toplevels__items_changed),
self);
}
static void