From 6e2f04583728714ff937eb1fa3ab34e99bcdb6a6 Mon Sep 17 00:00:00 2001
From: Meitar Moscovitz <meitarm@gmail.com>
Date: Mon, 9 Feb 2009 00:02:51 +1100
Subject: Add machine-readable pagination using HTML4.01 `<link rel="next">`,
 etc.

These extra `<link>` elements only appear on pages where pagination
makes sense. They trigger functionality in some user agents, such as
Opera's Navigation Bar for more easily navigating forward and backwards
across a paged set of notices, messages, or group lists, etc.
---
 actions/groups.php | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'actions/groups.php')

diff --git a/actions/groups.php b/actions/groups.php
index 39dc2232b..b0bf7cfc2 100644
--- a/actions/groups.php
+++ b/actions/groups.php
@@ -129,4 +129,24 @@ class GroupsAction extends Action
         $gbm = new GroupsByMembersSection($this);
         $gbm->show();
     }
+
+    /**
+     * Output document relationship links
+     *
+     * @return void
+     */
+    function showRelationshipLinks()
+    {
+        // Machine-readable pagination
+        if ($this->page > 1) {
+            $this->element('link', array('rel' => 'next',
+                                         'href' => common_local_url('groups',
+                                                                    array('page' => $this->page - 1)),
+                                         'title' => _('Next Groups')));
+        }
+        $this->element('link', array('rel' => 'prev',
+                                     'href' => common_local_url('groups',
+                                                                array('page' => $this->page + 1)),
+                                     'title' => _('Previous Groups')));
+    }
 }
-- 
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