Merge pull request #382 from creocoder/jui-tabs

framework/yii/jui/Tabs.php

+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\jui;
+
+use yii\base\InvalidConfigException;
+use yii\helpers\base\ArrayHelper;
+use yii\helpers\Html;
+
+/**
+ * Tabs renders a tabs jQuery UI widget.
+ *
+ * For example:
+ *
+ * ```php
+ * echo Tabs::widget(array(
+ *     'items' => array(
+ *         array(
+ *             'header' => 'One',
+ *             'content' => 'Mauris mauris ante, blandit et, ultrices a, suscipit eget...',
+ *         ),
+ *         array(
+ *             'header' => 'Two',
+ *             'headerOptions' => array(...),
+ *             'content' => 'Sed non urna. Phasellus eu ligula. Vestibulum sit amet purus...',
+ *             'options' => array(...),
+ *         ),
+ *     ),
+ * ));
+ * ```
+ *
+ * @see http://api.jqueryui.com/tabs/
+ * @author Alexander Kochetov <creocoder@gmail.com>
+ * @since 2.0
+ */
+class Tabs extends Widget
+{
+	/**
+	 * @var array list of tabs in the tabs widget. Each array element represents a single
+	 * tab with the following structure:
+	 *
+	 * ```php
+	 * array(
+	 *     // required, the header (HTML) of the tab
+	 *     'header' => 'Tab label',
+	 *     // required, the content (HTML) of the tab
+	 *     'content' => 'Mauris mauris ante, blandit et, ultrices a, suscipit eget...',
+	 *     // optional the HTML attributes of the tab content container
+	 *     'options'=> array(...),
+	 *     // optional the HTML attributes of the tab header container
+	 *     'headerOptions'=> array(...),
+	 * )
+	 * ```
+	 */
+	public $items = array();
+
+
+	/**
+	 * Renders the widget.
+	 */
+	public function run()
+	{
+		echo Html::beginTag('div', $this->options) . "\n";
+		echo $this->renderHeaders() . "\n";
+		echo $this->renderContents() . "\n";
+		echo Html::endTag('div') . "\n";
+		$this->registerWidget('tabs');
+	}
+
+	/**
+	 * Renders tabs headers as specified on [[items]].
+	 * @return string the rendering result.
+	 * @throws InvalidConfigException.
+	 */
+	protected function renderHeaders()
+	{
+		$headers = array();
+		foreach ($this->items as $n => $item) {
+			if (!isset($item['header'])) {
+				throw new InvalidConfigException("The 'header' option is required.");
+			}
+			$options = ArrayHelper::getValue($item, 'options', array());
+			$id = isset($options['id']) ? $options['id'] : $this->options['id'] . '-tab' . $n;
+			$headerOptions = ArrayHelper::getValue($item, 'headerOptions', array());
+			$headers[] = Html::tag('li', Html::a($item['header'], "#$id"), $headerOptions);
+		}
+
+		return Html::tag('ul', implode("\n", $headers));
+	}
+
+	/**
+	 * Renders tabs contents as specified on [[items]].
+	 * @return string the rendering result.
+	 * @throws InvalidConfigException.
+	 */
+	protected function renderContents()
+	{
+		$contents = array();
+		foreach ($this->items as $n => $item) {
+			if (!isset($item['content'])) {
+				throw new InvalidConfigException("The 'content' option is required.");
+			}
+			$options = ArrayHelper::getValue($item, 'options', array());
+			if (!isset($options['id'])) {
+				$options['id'] = $this->options['id'] . '-tab' . $n;
+			}
+			$contents[] = Html::tag('div', $item['content'], $options);
+		}
+
+		return implode("\n", $contents);
+	}
+}