/**
* Renders tab items as specified on [[items]].
* @return string the rendering result.
* @throws InvalidConfigException.
*/
protected function renderItems()
{
$headers = [];
$panes = [];
if (!$this->hasActiveTab() && !empty($this->items)) {
$this->items[0]['active'] = true;
}
foreach ($this->items as $n => $item) {
if (!isset($item['label'])) {
throw new InvalidConfigException("The 'label' option is required.");
}
$label = $this->encodeLabels ? Html::encode($item['label']) : $item['label'];
$headerOptions = array_merge($this->headerOptions, ArrayHelper::getValue($item, 'headerOptions', []));
if (isset($item['items'])) {
if ($this->styled) {
throw new InvalidConfigException("The 'styled' not support dropdown items. Please, set 'styled' to false.");
}
$label .= ' <b class="caret"></b>';
Html::addCssClass($headerOptions, 'dropdown');
if ($this->renderDropdown($item['items'], $panes)) {
Html::addCssClass($headerOptions, 'active');
}
$header = Html::a($label, "#", ['class' => 'dropdown-toggle', 'data-toggle' => 'dropdown']) . "\n" . Dropdown::widget(['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' . $n);
Html::addCssClass($options, 'tab-pane');
if (ArrayHelper::remove($item, 'active')) {
Html::addCssClass($options, 'active');
Html::addCssClass($headerOptions, 'active');
}
$header = Html::a($label, '#' . $options['id'], ['data-toggle' => 'tab']);
$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, $headerOptions);
}
$headers = Html::tag('ul', implode("\n", $headers), $this->options);
$panes = Html::tag('div', implode("\n", $panes), ['class' => 'tab-content']);
return $this->placement == self::PLACEMENT_BELOW ? $panes . "\n" . $headers : $headers . "\n" . $panes;
}
/**
* Retrieves items tag
* @param array $item given parent item
* @return Dropdown widget
*/
private function _getDropdownTag($item)
{
$type = ArrayHelper::getValue($item, 'type', self::TYPE_DEFAULT);
$items = ArrayHelper::getValue($item, 'items', null);
if ($items !== null && is_array($items)) {
if ($type === self::TYPE_DEFAULT || $type === self::TYPE_USER) {
$options = ['class' => 'dropdown-menu-default'];
} else {
$options = ['class' => sprintf('%s %s', 'dropdown-menu-default extended', $type)];
}
$items = Dropdown::widget(['title' => ArrayHelper::getValue($item, 'title', ''), 'more' => ArrayHelper::getValue($item, 'more', []), 'scroller' => ArrayHelper::getValue($item, 'scroller', []), 'items' => $items, 'encodeLabels' => $this->encodeLabels, 'clientOptions' => false, 'options' => $options]);
}
return $items;
}
/**
* Renders the dropdown
* @return string the rendering result
*/
protected function renderDropdown()
{
$config = $this->dropdown;
$config['clientOptions'] = false;
return Dropdown::widget($config);
}