From 5007d000ff0959a97b911d71435eed0d6586ff49 Mon Sep 17 00:00:00 2001
From: kohsuke <kohsuke@71c3de6d-444a-0410-be80-ed276b4c234a>
Date: Mon, 9 Jun 2008 21:59:14 +0000
Subject: [PATCH] support conditional ManagementLink objects

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@9964 71c3de6d-444a-0410-be80-ed276b4c234a
---
 core/src/main/java/hudson/model/ManagementLink.java      | 5 +++++
 core/src/main/resources/hudson/model/Hudson/manage.jelly | 8 +++++---
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/core/src/main/java/hudson/model/ManagementLink.java b/core/src/main/java/hudson/model/ManagementLink.java
index afd603c380..d28efbd275 100644
--- a/core/src/main/java/hudson/model/ManagementLink.java
+++ b/core/src/main/java/hudson/model/ManagementLink.java
@@ -28,6 +28,11 @@ public abstract class ManagementLink implements ExtensionPoint, Action {
      * Mostly works like {@link Action#getIconFileName()}, except that
      * the expected icon size is 48x48, not 24x24. So if you give
      * just a file name, "/images/48x48" will be assumed.
+     *
+     * @return
+     *      As a special case, return null to exclude this object from the management link.
+     *      This is useful for defining {@link ManagementLink} that only shows up under
+     *      certain circumstances.
      */
     public abstract String getIconFileName();
 
diff --git a/core/src/main/resources/hudson/model/Hudson/manage.jelly b/core/src/main/resources/hudson/model/Hudson/manage.jelly
index 3c9aac9113..1c05d87ca0 100644
--- a/core/src/main/resources/hudson/model/Hudson/manage.jelly
+++ b/core/src/main/resources/hudson/model/Hudson/manage.jelly
@@ -52,9 +52,11 @@
       </j:if>
       <!-- TODO: replace all the hard-coded ones with the standard extension point -->
       <j:forEach var="m" items="${it.managementLinks}">
-        <local:feature icon="${m.iconFileName}"      href="${m.urlName}"   title="${m.displayName}">
-          ${m.description}
-        </local:feature>
+        <j:if test="${m.iconFileName!=null}">
+          <local:feature icon="${m.iconFileName}"      href="${m.urlName}"   title="${m.displayName}">
+            ${m.description}
+          </local:feature>
+        </j:if>
       </j:forEach>
 
       <j:choose>
-- 
GitLab