Initial commit

content/lib/plugins/styling/action.php

@@ -0,0 +1,51 @@
+<?php
+/**
+ * DokuWiki Plugin styling (Action Component)
+ *
+ * @license GPL 2 http://www.gnu.org/licenses/gpl-2.0.html
+ * @author  Andreas Gohr <andi@splitbrain.org>
+ */
+class action_plugin_styling extends DokuWiki_Action_Plugin
+{
+
+    /**
+     * Registers a callback functions
+     *
+     * @param Doku_Event_Handler $controller DokuWiki's event controller object
+     * @return void
+     */
+    public function register(Doku_Event_Handler $controller)
+    {
+        $controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE', $this, 'handleHeader');
+    }
+
+    /**
+     * Adds the preview parameter to the stylesheet loading in non-js mode
+     *
+     * @param Doku_Event $event  event object by reference
+     * @param mixed      $param  [the parameters passed as fifth argument to register_hook() when this
+     *                           handler was registered]
+     * @return void
+     */
+    public function handleHeader(Doku_Event &$event, $param)
+    {
+        global $ACT;
+        global $INPUT;
+        if ($ACT != 'admin' || $INPUT->str('page') != 'styling') return;
+        /** @var admin_plugin_styling $admin */
+        $admin = plugin_load('admin', 'styling');
+        if (!$admin->isAccessibleByCurrentUser()) return;
+
+        // set preview
+        $len = count($event->data['link']);
+        for ($i = 0; $i < $len; $i++) {
+            if ($event->data['link'][$i]['rel'] == 'stylesheet' &&
+                strpos($event->data['link'][$i]['href'], 'lib/exe/css.php') !== false
+            ) {
+                $event->data['link'][$i]['href'] .= '&preview=1&tseed='.time();
+            }
+        }
+    }
+}
+
+// vim:ts=4:sw=4:et: