/**
 * Form callback: Returns the form for modifying the product price and status.
 */
function commerce_backoffice_product_quick_edit_form($form, &$form_state, $product) {
  $form_state['product'] = $product;
  $price_array = $product->commerce_price[LANGUAGE_NONE][0];
  $currency = commerce_currency_load($price_array['currency_code']);
  $amount = commerce_currency_amount_to_decimal($price_array['amount'], $price_array['currency_code']);
  $price = number_format(commerce_currency_round(abs($amount), $currency), $currency['decimals'], $currency['decimal_separator'], $currency['thousands_separator']);
  if (module_exists('commerce_stock')) {
    $stock = $product->commerce_stock['und'][0];
  }
  $wrapper = drupal_html_id('commerce-backoffice-product-quick-edit-form');
  $form['#prefix'] = '<div class="container-inline" id="' . $wrapper . '">';
  $form['#suffix'] = '</div>';
  $form['price'] = array(
    '#type' => 'textfield',
    '#title' => t('Price'),
    '#title_display' => 'invisible',
    '#default_value' => $price,
    '#size' => 5,
  );
    $form['stock'] = array(
      '#type' => 'textfield',
      '#title' => t('Stock'),
      '#title_display' => 'invisible',
      '#default_value' => $stock,
      '#size' => 5,
    );
  $form['status'] = array(
    '#type' => 'select',
    '#title' => t('Status'),
    '#title_display' => 'invisible',
    '#options' => array(0 => t('Disabled'), 1 => t('Active')),
    '#default_value' => $product->status,
  );
  $form['save'] = array(
    '#type' => 'submit',
    '#value' => t('Save'),
    '#ajax' => array(
      'callback' => 'commerce_backoffice_product_quick_edit_form_ajax',
      'wrapper' => $wrapper,
    ),
  );
  if (!empty($form_state['product_saved'])) {
    $form['save']['#suffix'] = t('Saved');
  }

  return $form;
}

/**
 * Ajax callback for commerce_backoffice_product_quick_edit_form.
 */
function commerce_backoffice_product_quick_edit_form_ajax($form, &$form_state) {
  return $form;
}

/**
 * Submit callback for commerce_backoffice_product_quick_edit_form.
 */
function commerce_backoffice_product_quick_edit_form_submit($form, &$form_state) {
  $product = $form_state['product'];
  $currency_code = $product->commerce_price[LANGUAGE_NONE][0]['currency_code'];
  $product->commerce_price[LANGUAGE_NONE][0]['amount'] = commerce_currency_decimal_to_amount($form_state['values']['price'], $currency_code);
  if (module_exists('commerce_stock')) {
    $product->commerce_stock['und'][0] = $form_state['values']['stock'];
  }
  $product->status = $form_state['values']['status'];
  commerce_product_save($product);

  $form_state['rebuild'] = TRUE;
  $form_state['product_saved'] = TRUE;
}