refactored Tabs.

framework/yii/bootstrap/Tabs.php

@@ -26,8 +26,8 @@ use yii\helpers\Html;
  *         ),
  *         array(
  *             'label' => 'Two',
- *             'headerOptions' => array(...),
  *             'content' => 'Anim pariatur cliche...',
+ *             'headerOptions' => array(...),
  *             'options' => array('id'=>'myveryownID'),
  *         ),
  *         array(
@@ -61,12 +61,12 @@ class Tabs extends Widget
 	 * - headerOptions: array, optional, the HTML attributes of the tab header.
 	 * - content: array, required if `items` is not set. The content (HTML) of the tab pane.
 	 * - options: array, optional, the HTML attributes of the tab pane container.
-	 * - active: boolean, optional, whether the item tab header and pane should be visibles or not.
+	 * - active: boolean, optional, whether the item tab header and pane should be visible or not.
 	 * - items: array, optional, if not set then `content` will be required. The `items` specify a dropdown items
 	 *   configuration array. Items can also hold two extra keys:
-	 *   - active: boolean, optional, whether the item tab header and pane should be visibles or not.
-	 *   - content: string, required if `items` is not set. The content (HTML) of the tab pane.
-	 *   - contentOptions: optional, array, the HTML attributes of the tab content container.
+	 *     * active: boolean, optional, whether the item tab header and pane should be visible or not.
+	 *     * content: string, required if `items` is not set. The content (HTML) of the tab pane.
+	 *     * contentOptions: optional, array, the HTML attributes of the tab content container.
 	 */
 	public $items = array();
 	/**
@@ -94,7 +94,6 @@ class Tabs extends Widget
 	{
 		parent::init();
 		$this->addCssClass($this->options, 'nav nav-tabs');
-
 	}
 
 	/**
@@ -119,25 +118,21 @@ class Tabs extends Widget
 			if (!isset($item['label'])) {
 				throw new InvalidConfigException("The 'label' option is required.");
 			}
-			if (!isset($item['content']) && !isset($item['items'])) {
-				throw new InvalidConfigException("The 'content' option is required.");
-			}
-			$label = $this->label($item['label']);
-			$headerOptions = $this->mergedOptions($item, 'headerOptions');
+			$label = $this->encodeLabels ? Html::encode($item['label']) : $item['label'];
+			$headerOptions = array_merge($this->headerOptions, ArrayHelper::getValue($item, 'headerOptions', array()));
 
 			if (isset($item['items'])) {
 				$label .= ' <b class="caret"></b>';
 				$this->addCssClass($headerOptions, 'dropdown');
 
-				if ($this->normalizeItems($item['items'], $panes)) {
+				if ($this->renderDropdown($item['items'], $panes)) {
 					$this->addCssClass($headerOptions, 'active');
 				}
 
-				$header = Html::a($label, "#", array('class' => 'dropdown-toggle', 'data-toggle' => 'dropdown')) . "\n";
-				$header .= Dropdown::widget(array('items' => $item['items'], 'clientOptions' => false));
-
-			} else {
-				$options = $this->mergedOptions($item, 'itemOptions', 'options');
+				$header = Html::a($label, "#", array('class' => 'dropdown-toggle', 'data-toggle' => 'dropdown')) . "\n"
+					. Dropdown::widget(array('items' => $item['items'], 'clientOptions' => false));
+			} elseif (isset($item['content'])) {
+				$options = array_merge($this->itemOptions, ArrayHelper::getValue($item, 'options'));
 				$options['id'] = ArrayHelper::getValue($options, 'id', $this->options['id'] . '-tab' . $n);
 
 				$this->addCssClass($options, 'tab-pane');
@@ -147,40 +142,15 @@ class Tabs extends Widget
 				}
 				$header = Html::a($label, '#' . $options['id'], array('data-toggle' => 'tab', 'tabindex' => '-1'));
 				$panes[] = Html::tag('div', $item['content'], $options);
-
+			} else {
+				throw new InvalidConfigException("Either the 'content' or 'items' option must be set.");
 			}
-			$headers[] = Html::tag('li', $header, array_merge($this->headerOptions, $headerOptions));
-		}
 
-		return Html::tag('ul', implode("\n", $headers), $this->options) . "\n" .
-		Html::tag('div', implode("\n", $panes), array('class' => 'tab-content'));
-	}
-
-	/**
-	 * Returns encoded if specified on [[encodeLabels]], original string otherwise.
-	 * @param string $content the label text to encode or return
-	 * @return string the resulting label.
-	 */
-	protected function label($content)
-	{
-		return $this->encodeLabels ? Html::encode($content) : $content;
-	}
-
-	/**
-	 * Returns array of options merged with specified attribute array. The availabel options are:
-	 *  - [[itemOptions]]
-	 *  - [[headerOptions]]
-	 * @param array $item the item to merge the options with
-	 * @param string $name the property name.
-	 * @param string $key the key to extract. If null, it is assumed to be the same as `$name`.
-	 * @return array the merged array options.
-	 */
-	protected function mergedOptions($item, $name, $key = null)
-	{
-		if ($key === null) {
-			$key = $name;
+			$headers[] = Html::tag('li', $header, $headerOptions);
 		}
-		return array_merge($this->{$name}, ArrayHelper::getValue($item, $key, array()));
+
+		return Html::tag('ul', implode("\n", $headers), $this->options) . "\n"
+			. Html::tag('div', implode("\n", $panes), array('class' => 'tab-content'));
 	}
 
 	/**
@@ -191,7 +161,7 @@ class Tabs extends Widget
 	 * @return boolean whether any of the dropdown items is `active` or not.
 	 * @throws InvalidConfigException
 	 */
-	protected function normalizeItems(&$items, &$panes)
+	protected function renderDropdown(&$items, &$panes)
 	{
 		$itemActive = false;
 
@@ -199,7 +169,7 @@ class Tabs extends Widget
 			if (is_string($item)) {
 				continue;
 			}
-			if (!isset($item['content']) && !isset($item['items'])) {
+			if (!isset($item['content'])) {
 				throw new InvalidConfigException("The 'content' option is required.");
 			}
 
@@ -222,4 +192,4 @@ class Tabs extends Widget
 		}
 		return $itemActive;
 	}
-}
+}