1 files changed, 62 insertions, 22 deletions

diff --git a/action.php b/action.php
index d896aa7..da0fb22 100644
--- a/action.php
+++ b/action.php
@@ -7,12 +7,20 @@ if(!defined('DOKU_INC')) die();
 if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
 require_once DOKU_PLUGIN.'action.php';
 
+/**
+ * search_namespaces1
+ * 
+ * like search_namespaces but with limited depth to 1
+ */
 function search_namespaces1(&$data,$base,$file,$type,$lvl,$opts){
     $opts['listdirs'] = true;
     $opts['depth'] = 1;
     return search_universal($data,$base,$file,$type,$lvl,$opts);
 }
 
+/**
+ * Helper class to list Pages and Namespaces
+ */
 class NamespaceNode {
     public $name;
     public $level;
@@ -41,44 +49,63 @@ class NamespaceNode {
 }
 
 
+/**
+ * DokuWiki Action Plugin. Inserts Tree Navigation in div "page" and wraps
+ * actual page in div "inner__page"
+ */
 class action_plugin_treenav extends DokuWiki_Action_Plugin {
     function register(&$controller) {
         $controller->register_hook('TPL_ACT_RENDER', 'BEFORE', $this,
-                                   '_before_page');
+                                   'hook_beforePage');
         $controller->register_hook('TPL_ACT_RENDER', 'AFTER', $this,
-                                   '_after_page');
-
+                                   'hook_afterPage');
     }
 
-    function _after_page(&$event, $param) {
-        echo '</div>' . DOKU_LF;
-    }
 
-    function _before_page(&$event, $param) {
+    function hook_beforePage(&$event, $param) {
         global $ID;
-        $root = new NamespaceNode('',0);
-        $renderer =& p_get_renderer('xhtml');
-        $renderer->listu_open();
-        $this->_print($root, $renderer);
-        $renderer->listu_close();
+        $deps = p_get_metadata($id, 'treenav_deps', true);
+        $cache = new cache(cleanID($ID), 'plugin_treenav');
+        
+        if (count($deps)>0 && $cache->useCache($deps)) {
+            $doc = $cache->retrieveCache(false);
+        } else {
+            $deps = array('files' => array());
+            $root = new NamespaceNode('',0);
+
+            $renderer =& p_get_renderer('xhtml');
+            $renderer->listu_open();
+            $this->_print($root, $renderer, $deps);
+            $renderer->listu_close();
+            $doc = $renderer->doc;
+
+            $cache->storeCache($doc);
+            p_set_metadata($id, array('treenav_deps' => $deps));
+        }
 
-        echo '<div class="treenav">' . DOKU_LF . $renderer->doc . DOKU_LF . '</div>';
+        echo '<div class="treenav">' . DOKU_LF . $doc . DOKU_LF . '</div>';
         echo '<div class="page__inner">' . DOKU_LF;
+
+        tpl_flush();
     }
 
-    function _print($node, &$renderer) {
+    function hook_afterPage(&$event, $param) {
+        echo '</div>' . DOKU_LF;
+    }
+
+    function _print($node, &$renderer, &$deps) {
         global $ID;
         foreach ($node->getChildren() as $child) {
             foreach ($child->getPages() as $page) {
                 if (noNS($page['id']) === 'start') {
                     $renderer->listitem_open();
-                    $renderer->cdata('>');
+                    $deps['files'][] = wikiFN($page['id']); // Add page file to dependencies
                     $this->_renderPagelink($page['id'], $renderer);
                     if (strpos(getNS($ID), $child->name) === 0) {
                         // Recursive Call with Sub-Namespace that contains
                         // current Page ($ID)
                         $renderer->listu_open();
-                        $this->_print($child, $renderer);
+                        $this->_print($child, $renderer, $deps);
                         $renderer->listu_close();
                     }
                     $renderer->listitem_close();
@@ -90,21 +117,34 @@ class action_plugin_treenav extends DokuWiki_Action_Plugin {
             if (noNS($page['id']) == 'start' && getNS($page['id']) != '')
                 continue;
             $renderer->listitem_open();
+            $deps['files'][] = wikiFN($page['id']); // Add page file to dependencies
             $this->_renderPagelink($page['id'], $renderer);
             $renderer->listitem_close();
         }
     }
 
     function _renderPagelink($id, &$renderer) {
+        global $conf;
+
         $id = ':' . cleanID($id);
-        $options = p_get_metadata($id, 'treenav', true);
-        if ($options['icon']) {
-            $iconID = $options['icon'];
+        $options = p_get_metadata($id, 'treenav');
+
+        // Icon
+        $iconID = $options['icon'];
+        if ($iconID) {
             resolve_mediaid(getNS($id), $iconID, $exists);
-            if ($exists) {
-                $renderer->doc .= $renderer->_media($iconID, NULL, NULL, 16, 16);
+        }
+        if ($iconID && $exists) {
+            $link = ml($iconID, array('h'=>16, 'cache'=>NULL));
+        } else {
+            if (noNS($id) === $conf['start'] && getNS($id) !== '') {
+                $link = DOKU_REL . 'lib/plugins/treenav/images/zoom-in-symbolic.png';
+            } else {
+                $link = DOKU_REL . 'lib/plugins/treenav/images/go-next-symbolic.png';
             }
         }
+        $renderer->doc .= '<img height="16" src="'.$link.'" class="media" />' . DOKU_LF;
+
         if ($options['title']) {
             $title = $options['title'];
         } else {
@@ -121,4 +161,4 @@ class action_plugin_treenav extends DokuWiki_Action_Plugin {
 /* tab-width: 4           */
 /* indent-tabs-mode: nil  */
 /* c-basic-offset: 4      */
-/* End:                   */
\ No newline at end of file
+/* End:                   */