Merge "Add full stop to apihelp-query+revisions+base-param-difftotext"

[lhc/web/wiklou.git] / includes / actions / Action.php

diff --git a/includes/actions/Action.php b/includes/actions/Action.php
index aca4363..bb6a4d5 100644 (file)
--- a/includes/actions/Action.php
+++ b/includes/actions/Action.php
@@ -376,6 +376,28 @@ abstract class Action {
                return $this->msg( strtolower( $this->getName() ) )->escaped();
        }
 
+       /**
+        * Adds help link with an icon via page indicators.
+        * Link target can be overridden by a local message containing a wikilink:
+        * the message key is: lowercase action name + '-helppage'.
+        * @param string $to Target MediaWiki.org page title or encoded URL.
+        * @param bool $overrideBaseUrl Whether $url is a full URL, to avoid MW.o.
+        * @since 1.25
+        */
+       public function addHelpLink( $to, $overrideBaseUrl = false ) {
+               global $wgContLang;
+               $msg = wfMessage( $wgContLang->lc(
+                       Action::getActionName( $this->getContext() )
+                       ) . '-helppage' );
+
+               if ( !$msg->isDisabled() ) {
+                       $helpUrl = Skin::makeUrl( $msg->plain() );
+                       $this->getOutput()->addHelpLink( $helpUrl, true );
+               } else {
+                       $this->getOutput()->addHelpLink( $to, $overrideBaseUrl );
+               }
+       }
+
        /**
         * The main action entry point.  Do all output for display and send it to the context
         * output.  Do not use globals $wgOut, $wgRequest, etc, in implementations; use