subclass global bits of addons

addons/Core/Core.inc

@@ -1,6 +1,6 @@
 <?php
 
-class ComicPressAddonCore {
+class ComicPressAddonCore extends ComicPressAddon {
   function init($comicpress) {
     add_action('admin_init', array(&$this, 'add_theme_page'));
 
@@ -109,6 +109,8 @@ class ComicPressAddonCore {
       }
     }
     $this->comicpress->save();
+    
+    $this->info("ComicPress configuration updated.");
   }
 }
 

classes/ComicPressAddon.inc

@@ -0,0 +1,27 @@
+<?php
+
+class ComicPressAddon {
+  var $messages = array(
+    'info' => array(),
+    'warn' => array(),
+    'error' => array()
+  );
+
+  function info($message) { $this->messages['info'][] = $message; }
+  function warn($message) { $this->messages['warn'][] = $message; }
+  function error($message) { $this->messages['error'][] = $message; }
+  
+  function display_messages() {
+    foreach ($this->messages as $type => $messages) {
+      if (!empty($messages)) {
+        echo '<div class="updated fade cp-' . $type . '">';
+          foreach ($messages as $message) {
+            echo '<p>' . $message . '</p>';
+          }
+        echo '</div>';
+      }
+    }
+  }
+}
+
+?>

functions.php

@@ -57,10 +57,13 @@ function __comicpress_init() {
             if (class_exists($classname)) {
               $addon = new $classname();
               $addon->init(&$comicpress);
-              if (is_array($_POST['cp'])) {
-                if (isset($_POST['cp']['_nonce'])) {
-                  if (wp_verify_nonce($_POST['cp']['_nonce'], 'comicpress')) {
-                    $addon->handle_update();
+              if (is_admin()) {
+                add_action('admin_notices', array(&$addon, 'display_messages'));
+                if (is_array($_POST['cp'])) {
+                  if (isset($_POST['cp']['_nonce'])) {
+                    if (wp_verify_nonce($_POST['cp']['_nonce'], 'comicpress')) {
+                      $addon->handle_update();
+                    }
                   }
                 }
               }