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wifi: Fix crash when switching to other panel after forget network

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Similar to the previous crashes, if you switch panels after forgetting a
network while the toast is still alive, Settings crashes. This is
because the AdwToastOverlay is not properly disposed because the Saved
Networks dialog is also not destroyed.

However, destroying the saved networks dialog still leaves a crash,
because the overlay disposal first unreferences its child, but we still
need that for the dismissal of the waiting toasts. Therefore, we keep an
extra reference to the saved networks list.

To prevent further crashing, we cannot set "list" to NULL, because there
may be multiple async calls. Also, we have to keep a reference to self
in the async call, otherwise it does not work when you remove many
networks and then switch panels.

As an added bonus, we can now use the saved networks list inside the UI
refresh function.
This commit is contained in:
velsinki 2023-12-14 03:15:43 +01:00 • committed by Felipe Borges
parent 794d8f5135
commit 99b42130b0
1 changed files with 8 additions and 9 deletions
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17
panels/network/net-device-wifi.c
View file

@ -66,6 +66,7 @@ struct _NetDeviceWifi
GtkBox *listbox_box;
GtkStack *stack;
AdwPreferencesGroup *saved_networks_box;
CcWifiConnectionList *saved_networks_list;
GtkWindow *saved_networks_dialog;
AdwToastOverlay *saved_networks_toast_overlay;
AdwToast *saved_networks_undo_toast;
@ -352,7 +353,6 @@ request_scan (gpointer user_data)
static void
nm_device_wifi_refresh_ui (NetDeviceWifi *self)
{
CcWifiConnectionList *saved_networks_list;
g_autofree gchar *status = NULL;
if (device_is_hotspot (self)) {
@ -377,10 +377,7 @@ nm_device_wifi_refresh_ui (NetDeviceWifi *self)
/* update list of APs */
show_wifi_list (self);
saved_networks_list = cc_wifi_connection_list_new (self->client, NM_DEVICE_WIFI (self->device), FALSE, FALSE, FALSE, TRUE);
gtk_widget_set_visible (GTK_WIDGET (self->saved_network_row), !cc_wifi_connection_list_is_empty (saved_networks_list));
g_object_ref_sink (saved_networks_list);
g_object_unref (saved_networks_list);
gtk_widget_set_visible (GTK_WIDGET (self->saved_network_row), !cc_wifi_connection_list_is_empty (self->saved_networks_list));
}
static void
@ -792,6 +789,8 @@ net_device_wifi_dispose (GObject *object)
self->hotspot_dialog = NULL;
}
g_clear_pointer (&self->saved_networks_dialog, gtk_window_destroy);
G_OBJECT_CLASS (net_device_wifi_parent_class)->dispose (object);
}
@ -806,6 +805,7 @@ net_device_wifi_finalize (GObject *object)
g_clear_object (&self->client);
g_clear_object (&self->device);
g_clear_object (&self->saved_networks_list);
g_clear_pointer (&self->selected_ssid_title, g_free);
g_clear_pointer (&self->selected_connection_id, g_free);
g_clear_pointer (&self->selected_ap_id, g_free);
@ -836,7 +836,7 @@ really_forgotten (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
NetDeviceWifi *self = NET_DEVICE_WIFI (user_data);
g_autoptr(NetDeviceWifi) self = NET_DEVICE_WIFI (user_data);
g_autoptr(CcWifiConnectionList) list = NULL;
g_autoptr(GError) error = NULL;
@ -852,8 +852,6 @@ really_forgotten (GObject *source_object,
gtk_window_close (self->saved_networks_dialog);
gtk_widget_set_visible (GTK_WIDGET (self->saved_network_row), FALSE);
}
g_object_set_data (G_OBJECT (self), "list", NULL);
}
static void
@ -871,7 +869,7 @@ really_forget (AdwToast *toast, CcWifiConnectionRow *row)
connection = NM_REMOTE_CONNECTION (cc_wifi_connection_row_get_connection (row));
g_object_set_data (G_OBJECT (self), "list", g_object_ref (list));
nm_remote_connection_delete_async (connection, self->cancellable, really_forgotten, self);
nm_remote_connection_delete_async (connection, self->cancellable, really_forgotten, g_object_ref (self));
}
static void
@ -1190,6 +1188,7 @@ net_device_wifi_new (CcPanel *panel, NMClient *client, NMDevice *device)
/* Set up the Saved Networks list */
list = cc_wifi_connection_list_new (self->client, NM_DEVICE_WIFI (device), FALSE, FALSE, FALSE, TRUE);
self->saved_networks_list = g_object_ref_sink (list);
adw_preferences_group_add (self->saved_networks_box, GTK_WIDGET (list));
listbox = cc_wifi_connection_list_get_list_box (list);