Config Controller and Template

Controller/ConfigController.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Kanboard\Plugin\ShrinkVertically\Controller;
+
+use Kanboard\Controller\BaseController;
+
+/**
+ * Settings page for the ShrinkVertically plugin: configure how many pixels are
+ * reserved around the vertically collapsed board columns.
+ */
+class ConfigController extends BaseController
+{
+    const DEFAULT_OFFSET = 240;
+    const MIN_OFFSET = 0;
+    const MAX_OFFSET = 2000;
+
+    public function show()
+    {
+        $offset = (int) $this->configModel->get('shrink_vertically_offset', self::DEFAULT_OFFSET);
+
+        $this->response->html($this->helper->layout->config('shrinkVertically:config/show', array(
+            'title' => t('Settings').' &gt; '.t('Shrink Vertically'),
+            'values' => array(
+                'shrink_vertically_offset' => $offset,
+            ),
+            'errors' => array(),
+        )));
+    }
+
+    public function save()
+    {
+        $values = $this->request->getValues();
+
+        $offset = isset($values['shrink_vertically_offset']) ? (int) $values['shrink_vertically_offset'] : self::DEFAULT_OFFSET;
+        $offset = max(self::MIN_OFFSET, min(self::MAX_OFFSET, $offset));
+
+        if ($this->configModel->save(array('shrink_vertically_offset' => $offset))) {
+            $this->flash->success(t('Settings saved successfully.'));
+        } else {
+            $this->flash->failure(t('Unable to save your settings.'));
+        }
+
+        $this->response->redirect($this->helper->url->to('ConfigController', 'show', array('plugin' => 'ShrinkVertically')));
+    }
+}