Add field layout elements

src/SiteModule.php

@@ -3,10 +3,14 @@
 
 use sgroup\sitemodule\base\Module;
 use sgroup\sitemodule\base\PluginTrait;
+use sgroup\sitemodule\fieldlayoutelements\Note;
+use sgroup\sitemodule\fieldlayoutelements\Spacer;
 use sgroup\sitemodule\twigextensions\Extension;
 use sgroup\sitemodule\variables\Variable;
 
 use Craft;
+use craft\events\DefineFieldLayoutElementsEvent;
+use craft\models\FieldLayout;
 use craft\web\Application;
 use craft\web\twig\variables\CraftVariable;
 
@@ -32,6 +36,7 @@ public function init()
         $this->_checkOffline();
         $this->_setPluginComponents();
         $this->_registerTwigExtensions();
+        $this->_registerFieldLayoutElements();
 
         // Prevent code from firing too early before Craft is bootstrapped
         Craft::$app->on(Application::EVENT_INIT, function() {
@@ -54,4 +59,12 @@ private function _registerTwigExtensions()
     {
         Craft::$app->view->registerTwigExtension(new Extension);
     }
+
+    private function _registerFieldLayoutElements()
+    {
+        Event::on(FieldLayout::class, FieldLayout::EVENT_DEFINE_UI_ELEMENTS, function(DefineFieldLayoutElementsEvent $event) {
+            $event->elements[] = Note::class;
+            $event->elements[] = Spacer::class;
+        });
+    }
 }

src/fieldlayoutelements/Note.php

@@ -0,0 +1,49 @@
+<?php
+namespace sgroup\sitemodule\fieldlayoutelements;
+
+use Craft;
+use craft\base\ElementInterface;
+use craft\fieldlayoutelements\BaseUiElement;
+use craft\helpers\Cp;
+use craft\helpers\Html;
+
+class Note extends BaseUiElement
+{
+    // Properties
+    // =========================================================================
+
+    public $note;
+
+
+    // Protected Methods
+    // =========================================================================
+
+    protected function selectorLabel(): string
+    {
+        return $this->note ?: Craft::t('app', 'Note');
+    }
+
+    protected function selectorIcon()
+    {
+        return '@appicons/hash.svg';
+    }
+
+
+    // Public Methods
+    // =========================================================================
+
+    public function settingsHtml()
+    {
+        return Cp::textFieldHtml([
+            'label' => Craft::t('app', 'Note'),
+            'id' => 'note',
+            'name' => 'note',
+            'value' => $this->note,
+        ]);
+    }
+
+    public function formHtml(ElementInterface $element = null, bool $static = false)
+    {
+        return Html::tag('p', Html::encode(Craft::t('site', $this->note)));
+    }
+}

src/fieldlayoutelements/Spacer.php

@@ -0,0 +1,37 @@
+<?php
+namespace sgroup\sitemodule\fieldlayoutelements;
+
+use Craft;
+use craft\base\ElementInterface;
+use craft\fieldlayoutelements\BaseUiElement;
+use craft\helpers\Cp;
+use craft\helpers\Html;
+
+class Spacer extends BaseUiElement
+{
+    // Protected Methods
+    // =========================================================================
+
+    protected function selectorLabel(): string
+    {
+        return Craft::t('app', 'Spacer');
+    }
+
+
+    // Public Methods
+    // =========================================================================
+
+    public function settingsHtml()
+    {
+        return Cp::textFieldHtml([
+            'label' => Craft::t('app', 'Spacer'),
+            'id' => 'spacer',
+            'name' => 'spacer',
+        ]);
+    }
+
+    public function formHtml(ElementInterface $element = null, bool $static = false)
+    {
+        return '';
+    }
+}