static gboolean
cb_tearable_button_release (GtkWidget *w, GdkEventButton *event,
GOComboBox *combo)
{
GtkTearoffMenuItem *tearable;
g_return_val_if_fail (w != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TEAROFF_MENU_ITEM (w), FALSE);
tearable = GTK_TEAROFF_MENU_ITEM (w);
tearable->torn_off = !tearable->torn_off;
if (!combo->priv->torn_off) {
gboolean need_connect;
need_connect = (!combo->priv->tearoff_window);
go_combo_set_tearoff_state (combo, TRUE);
if (need_connect)
g_signal_connect_swapped (combo->priv->tearoff_window,
"delete_event",
G_CALLBACK (cb_popup_delete), combo);
} else
go_combo_box_popup_hide_unconditional (combo);
return TRUE;
}
static void
go_combo_box_popup_hide_unconditional (GOComboBox *combo_box)
{
gboolean popup_info_destroyed = FALSE;
g_return_if_fail (combo_box != NULL);
g_return_if_fail (IS_GO_COMBO_BOX (combo_box));
gtk_widget_hide (combo_box->priv->toplevel);
gtk_widget_hide (combo_box->priv->popup);
if (combo_box->priv->torn_off) {
GTK_TEAROFF_MENU_ITEM (combo_box->priv->tearable)->torn_off
= FALSE;
go_combo_set_tearoff_state (combo_box, FALSE);
}
do_focus_change (combo_box->priv->toplevel, FALSE);
gtk_grab_remove (combo_box->priv->toplevel);
gdk_display_pointer_ungrab (gtk_widget_get_display (combo_box->priv->toplevel),
GDK_CURRENT_TIME);
g_object_ref (combo_box->priv->popdown_container);
g_signal_emit (combo_box,
go_combo_box_signals [POP_DOWN_DONE], 0,
combo_box->priv->popdown_container, &popup_info_destroyed);
if (popup_info_destroyed){
gtk_container_remove (
GTK_CONTAINER (combo_box->priv->frame),
combo_box->priv->popdown_container);
combo_box->priv->popdown_container = NULL;
}
g_object_unref (combo_box->priv->popdown_container);
set_arrow_state (combo_box, FALSE);
}
static void
go_combo_box_popup_hide_unconditional (GOComboBox *combo_box)
{
gboolean popup_info_destroyed = FALSE;
GObject *pdc;
g_return_if_fail (combo_box != NULL);
g_return_if_fail (GO_IS_COMBO_BOX (combo_box));
gtk_widget_hide (combo_box->priv->toplevel);
gtk_widget_hide (combo_box->priv->popup);
if (combo_box->priv->torn_off)
go_combo_set_tearoff_state (combo_box, FALSE);
do_focus_change (combo_box->priv->toplevel, FALSE);
gtk_grab_remove (combo_box->priv->toplevel);
gdk_device_ungrab (gtk_get_current_event_device (),
GDK_CURRENT_TIME);
pdc = g_object_ref (combo_box->priv->popdown_container);
g_signal_emit (combo_box,
go_combo_box_signals [POP_DOWN_DONE], 0,
pdc, &popup_info_destroyed);
if (popup_info_destroyed){
gtk_container_remove (
GTK_CONTAINER (combo_box->priv->frame),
combo_box->priv->popdown_container);
combo_box->priv->popdown_container = NULL;
}
g_object_unref (pdc);
set_arrow_state (combo_box, FALSE);
}
/**
* go_combo_box_set_tearable:
* @combo: Combo box
* @tearable: whether to allow the @combo to be tearable
*
* controls whether the combo box's pop up widget can be torn off.
*/
void
go_combo_box_set_tearable (GOComboBox *combo, gboolean tearable)
{
g_return_if_fail (IS_GO_COMBO_BOX (combo));
if (tearable){
gtk_widget_show (combo->priv->tearable);
} else {
go_combo_set_tearoff_state (combo, FALSE);
gtk_widget_hide (combo->priv->tearable);
}
}
static gboolean
cb_tearable_button_release (GtkWidget *w, G_GNUC_UNUSED GdkEventButton *event,
GOComboBox *combo)
{
g_return_val_if_fail (w != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TEAROFF_MENU_ITEM (w), FALSE);
/* FIXME: should we notify the parent menu? */
if (!combo->priv->torn_off) {
gboolean need_connect;
need_connect = (!combo->priv->tearoff_window);
go_combo_set_tearoff_state (combo, TRUE);
if (need_connect)
g_signal_connect_swapped (combo->priv->tearoff_window,
"delete_event",
G_CALLBACK (cb_popup_delete), combo);
} else
go_combo_box_popup_hide_unconditional (combo);
return TRUE;
}