Implement hidden accessible control for auto refresh on the page

refs #7945

application/forms/AutoRefreshForm.php

@@ -0,0 +1,79 @@
+<?php
+/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Forms;
+
+use Icinga\Application\Logger;
+use Icinga\User\Preferences;
+use Icinga\Web\Form;
+use Icinga\Web\Notification;
+use Icinga\Web\Session;
+
+/**
+ * Form class to adjust user auto refresh preferences
+ */
+class AutoRefreshForm extends Form
+{
+    /**
+     * Initialize this form
+     */
+    public function init()
+    {
+        $this->setName('form_auto_refresh');
+    }
+
+    /**
+     * Adjust preferences and persist them
+     *
+     * @see Form::onSuccess()
+     */
+    public function onSuccess()
+    {
+        /** @var Preferences $preferences */
+        $preferences = $this->getRequest()->getUser()->getPreferences();
+        $icingaweb = $preferences->get('icingaweb');
+
+        if ((bool) $preferences->getValue('icingaweb', 'auto_refresh', true) === false) {
+            $icingaweb['auto_refresh'] = '1';
+            $notification = $this->translate('Auto refresh successfully enabled');
+        } else {
+            $icingaweb['auto_refresh'] = '0';
+            $notification = $this->translate('Auto refresh successfully disabled');
+        }
+        $preferences->icingaweb = $icingaweb;
+
+        Session::getSession()->user->setPreferences($preferences);
+        Notification::success($notification);
+
+        $this->getResponse()->setHeader('X-Icinga-Rerender-Layout', 'yes');
+    }
+
+    /**
+     * @see Form::createElements()
+     */
+    public function createElements(array $formData)
+    {
+        $preferences = $this->getRequest()->getUser()->getPreferences();
+
+        if ((bool) $preferences->getValue('icingaweb', 'auto_refresh', true) === false) {
+            $value = $this->translate('Enable auto refresh');
+        } else {
+            $value = $this->translate('Disable auto refresh');
+        }
+
+        $this->addElements(array(
+            array(
+                'button',
+                'btn_submit',
+                array(
+                    'ignore'        => true,
+                    'type'          => 'submit',
+                    'value'         => $value,
+                    'decorators'    => array('ViewHelper'),
+                    'escape'        => false,
+                    'class'         => 'link-like'
+                )
+            )
+        ));
+    }
+}

application/layouts/scripts/body.phtml

@@ -23,6 +23,11 @@ if (Auth::getInstance()->isAuthenticated()): ?>
        </ul>
      </nav>
    </div>
+
+   <div class="auto-refresh-trigger">
+       <?= $this->layout()->autoRefreshForm ?>
+   </div>
+
    <ul id="notifications"><?php
 
 $moduleName = $this->layout()->moduleName;

library/Icinga/Web/Controller/ActionController.php

@@ -10,6 +10,7 @@ use Icinga\Authentication\Manager;
 use Icinga\Exception\IcingaException;
 use Icinga\Exception\ProgrammingError;
 use Icinga\File\Pdf;
+use Icinga\Forms\AutoRefreshForm;
 use Icinga\Security\SecurityException;
 use Icinga\Util\Translator;
 use Icinga\Web\Notification;
@@ -379,6 +380,16 @@ class ActionController extends Zend_Controller_Action
         }
     }
 
+    /**
+     * @see Zend_Controller_Action::preDispatch()
+     */
+    public function preDispatch()
+    {
+        $form = new AutoRefreshForm();
+        $form->handleRequest();
+        $this->_helper->layout()->autoRefreshForm = $form;
+    }
+
     /**
      * Detect whether the current request requires changes in the layout and apply them before rendering
      *

public/css/icinga/menu.less

@@ -300,3 +300,22 @@ a:focus {
 .skip-links-inline {
   margin-top: -3.5em;
 }
+
+.auto-refresh-trigger {
+  position: absolute;
+  form {
+    button[type="submit"] {
+      position: absolute;
+      display: block;
+      left: -999em;
+      width: 12em !important;
+      top: 0.4em;
+      padding: 0.8em 0.8em !important;
+      background-color: white !important;
+      text-align: left !important;
+      &:focus {
+        left: 0;
+      }
+    }
+  }
+}