Add the possibility for modules to provide a setup wizard

refs #7163

library/Icinga/Application/Modules/Module.php

@@ -18,6 +18,7 @@ use Icinga\Web\Hook;
 use Icinga\Web\Menu;
 use Icinga\Web\Widget;
 use Icinga\Web\Widget\Dashboard\Pane;
+use Icinga\Web\Setup\SetupWizard;
 use Icinga\Util\File;
 use Icinga\Exception\ProgrammingError;
 use Icinga\Exception\IcingaException;
@@ -134,6 +135,13 @@ class Module
      */
     private $configTabs = array();
 
+    /**
+     * Provided setup wizard
+     *
+     * @var string
+     */
+    private $setupWizard;
+
     /**
      * Icinga application
      *
@@ -642,6 +650,31 @@ class Module
         return $tabs;
     }
 
+    /**
+     * Whether this module provides a setup wizard
+     *
+     * @return  bool
+     */
+    public function providesSetupWizard()
+    {
+        $this->launchConfigScript();
+        if (class_exists($this->setupWizard)) {
+            $wizard = new $this->setupWizard;
+            return $wizard instanceof SetupWizard;
+        }
+
+        return false;
+    }
+
+    /**
+     * Return this module's setup wizard
+     *
+     * @return  SetupWizard
+     */
+    public function getSetupWizard()
+    {
+        return new $this->setupWizard;
+    }
 
     /**
      * Provide a named permission
@@ -705,6 +738,19 @@ class Module
         return $this;
     }
 
+    /**
+     * Provide a setup wizard
+     *
+     * @param   string  $className      The name of the class
+     *
+     * @return  self
+     */
+    protected function provideSetupWizard($className)
+    {
+        $this->setupWizard = $className;
+        return $this;
+    }
+
     /**
      * Register new namespaces on the autoloader
      *