Introduce a form the limiter control

refs #5543

application/forms/Control/LimiterControlForm.php

@@ -0,0 +1,113 @@
+<?php
+/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Forms\Control;
+
+use Icinga\Web\Form;
+
+/**
+ * Limiter control form
+ */
+class LimiterControlForm extends Form
+{
+    /**
+     * CSS class for the limiter control
+     *
+     * @var string
+     */
+    const CSS_CLASS_LIMITER = 'limiter-control';
+
+    /**
+     * Default limit
+     *
+     * @var int
+     */
+    const DEFAULT_LIMIT = 50;
+
+    /**
+     * Selectable limits
+     *
+     * @var int[]
+     */
+    public static $limits = array(
+        10  => '10',
+        25  => '25',
+        50  => '50',
+        100 => '100',
+        500 => '500'
+    );
+
+    /**
+     * Default limit for this instance
+     *
+     * @var int|null
+     */
+    protected $defaultLimit;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function init()
+    {
+        $this->setAttrib('class', static::CSS_CLASS_LIMITER);
+    }
+
+    /**
+     * Get the default limit
+     *
+     * @return int
+     */
+    public function getDefaultLimit()
+    {
+        return $this->defaultLimit !== null ? $this->defaultLimit : static::DEFAULT_LIMIT;
+    }
+
+    /**
+     * Set the default limit
+     *
+     * @param   int $defaultLimit
+     *
+     * @return  $this
+     */
+    public function setDefaultLimit($defaultLimit)
+    {
+        $this->defaultLimit = (int) $defaultLimit;
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getRedirectUrl()
+    {
+        return $this->getRequest()->getUrl()->setParam('limit', $this->getElement('limit')->getValue());
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function createElements(array $formData)
+    {
+        $this->addElement(
+            'select',
+            'limit',
+            array(
+                'autosubmit'    => true,
+                'escape'        => false,
+                'label'         => '#',
+                'multiOptions'  => static::$limits,
+                'value'         => $this->getRequest()->getUrl()->getParam('limit', $this->getDefaultLimit())
+            )
+        );
+    }
+
+    /**
+     * Limiter control is always successful
+     *
+     * @return bool
+     */
+    public function onSuccess()
+    {
+        return true;
+    }
+}

library/Icinga/Web/Widget/Limiter.php

@@ -3,41 +3,13 @@
 
 namespace Icinga\Web\Widget;
 
-use Icinga\Web\Navigation\Navigation;
-use Icinga\Web\Url;
+use Icinga\Forms\Control\LimiterControlForm;
 
 /**
- * Limiter control
+ * Limiter control widget
  */
 class Limiter extends AbstractWidget
 {
-    /**
-     * CSS class for the limiter widget
-     *
-     * @var string
-     */
-    const CSS_CLASS_LIMITER = 'limiter-control';
-
-    /**
-     * Default limit
-     *
-     * @var int
-     */
-    const DEFAULT_LIMIT = 50;
-
-    /**
-     * Selectable limits
-     *
-     * @var int[]
-     */
-    public static $limits = array(
-        10  => '10',
-        25  => '25',
-        50  => '50',
-        100 => '100',
-        500 => '500'
-    );
-
     /**
      * Default limit for this instance
      *
@@ -48,11 +20,11 @@ class Limiter extends AbstractWidget
     /**
      * Get the default limit
      *
-     * @return int
+     * @return int|null
      */
     public function getDefaultLimit()
     {
-        return $this->defaultLimit !== null ? $this->defaultLimit : static::DEFAULT_LIMIT;
+        return $this->defaultLimit;
     }
 
     /**
@@ -73,39 +45,10 @@ class Limiter extends AbstractWidget
      */
     public function render()
     {
-        $url = Url::fromRequest();
-        $activeLimit = (int) $url->getParam('limit', $this->getDefaultLimit());
-        $navigation = new Navigation();
-        $navigation->setLayout(Navigation::LAYOUT_TABS);
-        foreach (static::$limits as $limit => $label) {
-            $navigation->addItem(
-                'limit_' . $limit,
-                array(
-                    'priority'  => $limit,
-                    'label'     => $label,
-                    'active'    => $activeLimit === $limit,
-                    'url'       => $url->with(array('limit' => $limit)),
-                    'title'     => sprintf(t('Show %u rows on this page'), $limit)
-                )
-            );
-        }
-
-        if ($activeLimit === 0) {
-            $navigation->addItem(
-                'limit_0',
-                array(
-                    'active'    => true,
-                    'label'     => t('all'),
-                    'title'     => t('Show all items on this page'),
-                    'priority'  => max(array_keys(static::$limits)) + 1
-                )
-            );
-        }
-
-        return $navigation
-            ->getRenderer()
-            ->setCssClass(static::CSS_CLASS_LIMITER)
-            ->setHeading(t('Limiter'))
-            ->render();
+        $control = new LimiterControlForm();
+        $control
+            ->setDefaultLimit($this->defaultLimit)
+            ->handleRequest();
+        return (string)$control;
     }
 }