monitoring/commands: Add `DisableNotificationsCommandForm'

`DisableNotificationsCommandForm' is the form for disabling host and service notifications w/ an optional expire date and time on an Icinga instance.

refs #6593

modules/monitoring/application/forms/Command/Instance/DisableNotificationsCommandForm.php

@@ -0,0 +1,76 @@
+<?php
+// {{{ICINGA_LICENSE_HEADER}}}
+// {{{ICINGA_LICENSE_HEADER}}}
+
+namespace Icinga\Module\Monitoring\Form\Command\Instance;
+
+use DateTime;
+use DateInterval;
+use Icinga\Module\Monitoring\Command\Instance\ToggleNotifications;
+use Icinga\Module\Monitoring\Form\Command\CommandForm;
+use Icinga\Web\Form\Element\DateTimePicker;
+use Icinga\Web\Notification;
+use Icinga\Web\Request;
+
+/**
+ * Form for disabling host and service notifications w/ an optional expire date and time on an Icinga instance
+ */
+class DisableNotificationsCommandForm extends CommandForm
+{
+    /**
+     * (non-PHPDoc)
+     * @see \Zend_Form::init() For the method documentation.
+     */
+    public function init()
+    {
+        $this->setSubmitLabel(mt('monitoring', 'Disable Notifications'));
+    }
+
+    /**
+     * (non-PHPDoc)
+     * @see \Icinga\Web\Form::createElements() For the method documentation.
+     */
+    public function createElements(array $formData = array())
+    {
+        $expire = new DateTime();
+        $expire->add(new DateInterval('PT1H'));
+        $this->addElement(
+            new DateTimePicker(
+                'expire',
+                array(
+                    'required'      => true,
+                    'label'         => t('Expire Time'),
+                    'description'   => mt('monitoring', 'Set the start date and time for the service downtime.'),
+                    'value'         => $expire
+                )
+            )
+        );
+        return $this;
+    }
+
+    /**
+     * Get the command which is to be sent to an Icinga instance
+     *
+     * @return ToggleNotifications
+     */
+    public function getCommand()
+    {
+        return new ToggleNotifications();
+    }
+
+    /**
+     * (non-PHPDoc)
+     * @see \Icinga\Web\Form::onSuccess() For the method documentation.
+     */
+    public function onSuccess(Request $request)
+    {
+        $toggleNotifications = $this->getCommand();
+        $toggleNotifications
+            ->disable()
+            ->setExpire($this->getElement('expire')->getValue());
+        $this->getTransport($request)->send($toggleNotifications);
+        Notification::success(mt('monitoring', 'Command sent'));
+        return true;
+    }
+
+}