1 files changed, 97 insertions, 0 deletions
diff --git a/library/Icinga/Web/Controller/ControllerTabCollector.php b/library/Icinga/Web/Controller/ControllerTabCollector.php
new file mode 100644
index 0000000..b452a20
--- /dev/null
+++ b/library/Icinga/Web/Controller/ControllerTabCollector.php
@@ -0,0 +1,97 @@
+<?php
+/* Icinga Web 2 | (c) 2013 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Web\Controller;
+
+use Icinga\Application\Modules\Module;
+use Icinga\Application\Icinga;
+use Icinga\Web\Widget\Tabs;
+
+/**
+ *  Static helper class that collects tabs provided by the 'createProvidedTabs' method of controllers
+ */
+class ControllerTabCollector
+{
+    /**
+     * Scan all controllers with given name in the application and (loaded) module folders and collects their provided
+     * tabs
+     *
+     * @param   string  $controllerName The name of the controllers to use for tab collection
+     *
+     * @return  Tabs                    A {@link Tabs} instance containing the application tabs first followed by the
+     *                                  tabs provided from the modules
+     */
+    public static function collectControllerTabs($controllerName)
+    {
+        $controller = '\Icinga\\' . Dispatcher::CONTROLLER_NAMESPACE . '\\' . $controllerName;
+        $applicationTabs = $controller::createProvidedTabs();
+        $moduleTabs = self::collectModuleTabs($controllerName);
+
+        $tabs = new Tabs();
+        foreach ($applicationTabs as $name => $tab) {
+            $tabs->add($name, $tab);
+        }
+
+        foreach ($moduleTabs as $name => $tab) {
+            // Don't overwrite application tabs if the module wants to
+            if ($tabs->has($name)) {
+                continue;
+            }
+            $tabs->add($name, $tab);
+        }
+        return $tabs;
+    }
+
+    /**
+     * Collect module tabs for all modules containing the given controller
+     *
+     * @param string $controller        The controller name to use for tab collection
+     *
+     * @return array                    An array of Tabs objects or arrays containing Tab descriptions
+     */
+    private static function collectModuleTabs($controller)
+    {
+        $moduleManager = Icinga::app()->getModuleManager();
+        $modules = $moduleManager->listEnabledModules();
+        $tabs = array();
+        foreach ($modules as $module) {
+            $tabs += self::createModuleConfigurationTabs($controller, $moduleManager->getModule($module));
+        }
+
+        return $tabs;
+    }
+
+    /**
+     * Collects the tabs from the createProvidedTabs() method in the configuration controller
+     *
+     * If the module doesn't have the given controller or createProvidedTabs method in the controller an empty array
+     * will be returned
+     *
+     * @param   string  $controllerName The name of the controller that provides tabs via createProvidedTabs
+     * @param   Module  $module         The module instance that provides the controller
+     *
+     * @return  array
+     */
+    private static function createModuleConfigurationTabs($controllerName, Module $module)
+    {
+        // TODO(el): Only works for controllers w/o namepsace: https://dev.icinga.com/issues/4149
+        $controllerDir = $module->getControllerDir();
+        $name = $module->getName();
+
+        $controllerDir = $controllerDir . '/' . $controllerName . '.php';
+        $controllerName = ucfirst($name) . '_' . $controllerName;
+
+        if (is_readable($controllerDir)) {
+            require_once(realpath($controllerDir));
+            if (! method_exists($controllerName, 'createProvidedTabs')) {
+                return array();
+            }
+            $tab = $controllerName::createProvidedTabs();
+            if (! is_array($tab)) {
+                $tab = array($name => $tab);
+            }
+            return $tab;
+        }
+        return array();
+    }
+}