init

vendor/yiisoft/yii2-jui/Draggable.php

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+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\jui;
+
+use yii\helpers\Html;
+
+/**
+ * Draggable renders an draggable jQuery UI widget.
+ *
+ * For example:
+ *
+ * ```php
+ * Draggable::begin([
+ *     'clientOptions' => ['grid' => [50, 20]],
+ * ]);
+ *
+ * echo 'Draggable contents here...';
+ *
+ * Draggable::end();
+ * ```
+ *
+ * @see http://api.jqueryui.com/draggable/
+ * @author Alexander Kochetov <creocoder@gmail.com>
+ * @since 2.0
+ */
+class Draggable extends Widget
+{
+    /**
+     * @inheritdoc
+     */
+    protected $clientEventMap = [
+        'create' => 'dragcreate',
+        'drag' => 'drag',
+        'stop' => 'dragstop',
+        'start' => 'dragstart',
+    ];
+
+
+    /**
+     * Initializes the widget.
+     */
+    public function init()
+    {
+        parent::init();
+        echo Html::beginTag('div', $this->options) . "\n";
+    }
+
+    /**
+     * Renders the widget.
+     */
+    public function run()
+    {
+        echo Html::endTag('div') . "\n";
+        $this->registerWidget('draggable');
+    }
+}