From e66d3e6dfa7ba6f0cf55b58f0b00b66b52c98321 Mon Sep 17 00:00:00 2001
From: Andreas Gohr <andi@splitbrain.org>
Date: Sun, 1 Jul 2012 11:41:22 +0200
Subject: Improved sidebar inclusion

Template authors now can use tpl_sidebar() to include the sidebar.
Sidebars can be defined in subnamespaces as well
---
 inc/pageutils.php | 24 ++++++++++++++++++++++++
 inc/template.php  | 12 ++++++++++++
 2 files changed, 36 insertions(+)

(limited to 'inc')

diff --git a/inc/pageutils.php b/inc/pageutils.php
index c94d14624..f525c44d0 100644
--- a/inc/pageutils.php
+++ b/inc/pageutils.php
@@ -622,3 +622,27 @@ function utf8_decodeFN($file){
     return urldecode($file);
 }
 
+/**
+ * Find a page in the current namespace (determined from $ID) or any
+ * higher namespace
+ *
+ * Used for sidebars, but can be used other stuff as well
+ *
+ * @todo   add event hook
+ * @param  string $page the pagename you're looking for
+ * @return string|false the full page id of the found page, false if any
+ */
+function page_findnearest($page){
+    global $ID;
+
+    $ns = $ID;
+    do {
+        $ns = getNS($ns);
+        $pageid = ltrim("$ns:$page",':');
+        if(page_exists($pageid)){
+            return $pageid;
+        }
+    } while($ns);
+
+    return false;
+}
diff --git a/inc/template.php b/inc/template.php
index a18d7151f..c9e899034 100644
--- a/inc/template.php
+++ b/inc/template.php
@@ -1394,6 +1394,18 @@ function tpl_include_page($pageid,$print=true){
 
     if(!$print) return $html;
     echo $html;
+    return $html;
+}
+
+/**
+ * Include the sidebar, will check current namespaces first
+ */
+function tpl_sidebar($print=true){
+    global $conf;
+
+    $sidebar = page_findnearest($conf['sidebar']);
+    if($sidebar) return tpl_include_page($sidebar, $print);
+    return '';
 }
 
 /**
-- 
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