refactored tpl_actiondropdown() to avoid duplication

inc/template.php

@@ -1613,6 +1613,12 @@ function tpl_actiondropdown($empty = '', $button = '>') {
     /** @var Input $INPUT */
     global $INPUT;
 
+    $action_structure = array(
+        'page_tools' => array('edit', 'revert', 'revisions', 'backlink', 'subscribe'),
+        'site_tools' => array('recent', 'media', 'index'),
+        'user_tools' => array('login', 'register', 'profile', 'admin'),
+    );
+
     echo '<form action="'.script().'" method="get" accept-charset="utf-8">';
     echo '<div class="no">';
     echo '<input type="hidden" name="id" value="'.$ID.'" />';
@@ -1624,47 +1630,14 @@ function tpl_actiondropdown($empty = '', $button = '&gt;') {
     echo '<select name="do" class="edit quickselect" title="'.$lang['tools'].'">';
     echo '<option value="">'.$empty.'</option>';
 
-    echo '<optgroup label="'.$lang['page_tools'].'">';
-    $act = tpl_get_action('edit');
-    if($act) echo '<option value="'.$act['params']['do'].'">'.$lang['btn_'.$act['type']].'</option>';
-
-    $act = tpl_get_action('revert');
-    if($act) echo '<option value="'.$act['params']['do'].'">'.$lang['btn_'.$act['type']].'</option>';
-
-    $act = tpl_get_action('revisions');
-    if($act) echo '<option value="'.$act['params']['do'].'">'.$lang['btn_'.$act['type']].'</option>';
-
-    $act = tpl_get_action('backlink');
-    if($act) echo '<option value="'.$act['params']['do'].'">'.$lang['btn_'.$act['type']].'</option>';
-
-    $act = tpl_get_action('subscribe');
-    if($act) echo '<option value="'.$act['params']['do'].'">'.$lang['btn_'.$act['type']].'</option>';
-    echo '</optgroup>';
-
-    echo '<optgroup label="'.$lang['site_tools'].'">';
-    $act = tpl_get_action('recent');
-    if($act) echo '<option value="'.$act['params']['do'].'">'.$lang['btn_'.$act['type']].'</option>';
-
-    $act = tpl_get_action('media');
-    if($act) echo '<option value="'.$act['params']['do'].'">'.$lang['btn_'.$act['type']].'</option>';
-
-    $act = tpl_get_action('index');
-    if($act) echo '<option value="'.$act['params']['do'].'">'.$lang['btn_'.$act['type']].'</option>';
-    echo '</optgroup>';
-
-    echo '<optgroup label="'.$lang['user_tools'].'">';
-    $act = tpl_get_action('login');
-    if($act) echo '<option value="'.$act['params']['do'].'">'.$lang['btn_'.$act['type']].'</option>';
-
-    $act = tpl_get_action('register');
-    if($act) echo '<option value="'.$act['params']['do'].'">'.$lang['btn_'.$act['type']].'</option>';
-
-    $act = tpl_get_action('profile');
-    if($act) echo '<option value="'.$act['params']['do'].'">'.$lang['btn_'.$act['type']].'</option>';
-
-    $act = tpl_get_action('admin');
-    if($act) echo '<option value="'.$act['params']['do'].'">'.$lang['btn_'.$act['type']].'</option>';
-    echo '</optgroup>';
+    foreach($action_structure as $tools => $actions) {
+        echo '<optgroup label="'.$lang[$tools].'">';
+        foreach($actions as $action) {
+            $act = tpl_get_action($action);
+            if($act) echo '<option value="'.$act['params']['do'].'">'.$lang['btn_'.$act['type']].'</option>';
+        }
+        echo '</optgroup>';
+    }
 
     echo '</select>';
     echo '<button type="submit">'.$button.'</button>';