init

vendor/yiisoft/yii2-bootstrap/src/Button.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\bootstrap;
+
+/**
+ * Button renders a bootstrap button.
+ *
+ * For example,
+ *
+ * ```php
+ * echo Button::widget([
+ *     'label' => 'Action',
+ *     'options' => ['class' => 'btn-lg'],
+ * ]);
+ * ```
+ * @see http://getbootstrap.com/javascript/#buttons
+ * @author Antonio Ramirez <amigo.cobos@gmail.com>
+ * @since 2.0
+ */
+class Button extends Widget
+{
+    /**
+     * @var string the tag to use to render the button
+     */
+    public $tagName = 'button';
+    /**
+     * @var string the button label
+     */
+    public $label = 'Button';
+    /**
+     * @var bool whether the label should be HTML-encoded.
+     */
+    public $encodeLabel = true;
+
+
+    /**
+     * Initializes the widget.
+     * If you override this method, make sure you call the parent implementation first.
+     */
+    public function init()
+    {
+        parent::init();
+        $this->clientOptions = false;
+        Html::addCssClass($this->options, ['widget' => 'btn']);
+    }
+
+    /**
+     * Renders the widget.
+     */
+    public function run()
+    {
+        $this->registerPlugin('button');
+        return Html::tag($this->tagName, $this->encodeLabel ? Html::encode($this->label) : $this->label, $this->options);
+    }
+}