1 files changed, 90 insertions, 0 deletions
diff --git a/hugo/libraries/plugins/PluginObserver.class.php b/hugo/libraries/plugins/PluginObserver.class.php
new file mode 100644
index 0000000..520d62a
--- /dev/null
+++ b/hugo/libraries/plugins/PluginObserver.class.php
@@ -0,0 +1,90 @@
+<?php
+/* vim: set expandtab sw=4 ts=4 sts=4: */
+/**
+ * The PluginObserver class is used alongside PluginManager to implement
+ * the Observer Design Pattern.
+ *
+ * @package PhpMyAdmin
+ */
+if (! defined('PHPMYADMIN')) {
+    exit;
+}
+
+/* Each PluginObserver instance contains a PluginManager instance */
+require_once 'PluginManager.class.php';
+
+/**
+ * This class implements the SplObserver interface
+ *
+ * @package PhpMyAdmin
+ * @link    http://php.net/manual/en/class.splobserver.php
+ */
+abstract class PluginObserver implements SplObserver
+{
+    /**
+     * PluginManager instance that contains a list with all the observer
+     * plugins that attach to it
+     *
+     * @var type PluginManager
+     */
+    private $_pluginManager;
+
+    /**
+     * Constructor
+     *
+     * @param PluginManager $pluginManager The Plugin Manager instance
+     */
+    public function __construct($pluginManager)
+    {
+        $this->_pluginManager = $pluginManager;
+    }
+
+    /**
+     * This method is called when any PluginManager to which the observer
+     * is attached calls PluginManager::notify()
+     *
+     * TODO Declare this function abstract, removing its body,
+     * as soon as we drop support for PHP 5.2.x.
+     * See bug #3538655.
+     *
+     * @param SplSubject $subject The PluginManager notifying the observer
+     *                            of an update.
+     *
+     * @return void
+     */
+    public function update (SplSubject $subject)
+    {
+        throw new Exception(
+            'PluginObserver::update must be overridden in child classes.'
+        );
+    }
+
+
+    /* ~~~~~~~~~~~~~~~~~~~~ Getters and Setters ~~~~~~~~~~~~~~~~~~~~ */
+
+
+    /**
+     * Gets the PluginManager instance that contains the list with all the
+     * plugins that attached to it
+     *
+     * @return type PluginManager
+     */
+    public function getPluginManager()
+    {
+        return $this->_pluginManager;
+    }
+
+    /**
+     * Setter for $_pluginManager
+     *
+     * @param PluginManager $_pluginManager the private instance that it will
+     *                                      attach to
+     *
+     * @return void
+     */
+    public function setPluginManager($_pluginManager)
+    {
+        $this->_pluginManager = $_pluginManager;
+    }
+}
+?>