如何更改Drupal中的MENU_LOCAL_TASK选项卡菜单

Question

我在自定义Drupal 6模块中构建了一个标签式菜单.我想在我的模块页面顶部的选项卡式菜单右侧放置一个html下拉列表.该列表将在更改时触发一些ajax事件,例如通过指定10,20,50,100结果来更改SQL查询的LIMIT子句.如何在没有黑客模板的情况下在Drupal中实现这一目标？

谢谢,

Answer 1

你可以通过覆盖theme_menu_local_tasks()你的主题来做到这一点:

function yourTheme_menu_local_tasks() {
  // Prepare empty dropdown to allow for unconditional addition to output below
  $dropdown = '';
  // Check if the dropdown should be added to this menu
  $inject_dropdown = TRUE; // TODO: Add checking logic according to your needs, e.g. by inspecting the path via arg()
  // Injection wanted?
  if ($inject_dropdown) {
    // Yes, build the dropdown using Forms API
    $select = array(
      '#type' => 'select',
      '#title' => t('Number of results:'),
      '#options' => array('10', '20', '50', '100'),
    );
    // Wrap rendered select in <li> tag to fit within the rest of the tabs list
    $dropdown = '<li>' . drupal_render($select) . '</li>';
  }

  // NOTE: The following is just a copy of the default theme_menu_local_tasks(),
  // with the addition of the (possibly empty) $dropdown variable output
  $output = '';
  if ($primary = menu_primary_local_tasks()) {
    $output .= "<ul class=\"tabs primary\">\n". $primary . $dropdown . "</ul>\n";
  }
  if ($secondary = menu_secondary_local_tasks()) {
    $output .= "<ul class=\"tabs secondary\">\n". $secondary ."</ul>\n";
  }

  return $output;
}

(注意:未经测试的代码 - 潜在的拼写错误)