public static function get_instance()
{
if (empty(self::$instance)) {
self::$instance = new WPSC_Checkout_Wizard();
}
return self::$instance;
}
private function init_checkout_wizard()
{
$this->wizard = WPSC_Checkout_Wizard::get_instance();
$this->wizard->steps = array('shipping-and-billing' => __('Details', 'wp-e-commerce'), 'shipping-method' => __('Delivery', 'wp-e-commerce'), 'payment' => __('Place Order', 'wp-e-commerce'), 'results' => __('Complete', 'wp-e-commerce'));
if (!wpsc_uses_shipping()) {
unset($this->wizard->steps['shipping-method']);
}
if (is_user_logged_in() && (!array_key_exists($this->wizard->active_step, $this->wizard->steps) || in_array($this->wizard->active_step, $this->wizard->disabled))) {
wp_redirect(wpsc_get_checkout_url($this->wizard->pending_step));
exit;
}
}
function wpsc_get_checkout_steps()
{
if (_wpsc_get_current_controller_name() != 'checkout') {
return '';
}
$wizard = WPSC_Checkout_Wizard::get_instance();
$steps = $wizard->steps;
$output = '<ul class="wpsc-wizard">';
$step_count = 1;
foreach ($steps as $step => $title) {
$classes = array('wpsc-wizard-step wpsc-wizard-step-' . $step);
if ($wizard->is_active($step)) {
$classes[] = 'active';
}
if ($wizard->is_disabled($step)) {
$classes[] = 'disabled';
} elseif ($wizard->is_completed($step)) {
$classes[] = 'completed';
} else {
$classes[] = 'pending';
}
$classes[] = 'split-' . count($steps);
$output .= '<li class="' . implode(' ', $classes) . '">';
if (!$wizard->is_completed($step)) {
$output .= '<span>';
} else {
$output .= '<a href="' . wpsc_get_checkout_url($step) . '">';
}
$output .= '<span class="step">' . $step_count . '.</span> ' . $title;
if (!$wizard->is_completed($step)) {
$output .= '</span>';
} else {
$output .= '</a>';
}
$output .= '</li>';
$step_count++;
}
$output .= '</ul>';
return $output;
}