TbTabView.php

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<?php
Yii::import('booster.widgets.TbTabs');

class TbTabView extends TbTabs
{

        public $viewData;

        protected function normalizeTabs($tabs, &$panes, &$i = 0)
        {
                $id = $this->getId();
                $items = array();

                //---------------- new -------------------
                //Check if has an active item
                $hasActiveItem = false;
                foreach ($tabs as $tab) {
                        $hasActiveItem = isset($tab['active']) ? $tab['active'] : false;
                        if ($hasActiveItem) {
                                break;
                        }
                }
                //---------------- end new -------------------

                foreach ($tabs as $tab) {
                        $item = $tab;

                        if (isset($item['visible']) && $item['visible'] === false) {
                                continue;
                        }

                        //---------------- new -------------------
                        //check first active
                        if (!$hasActiveItem && $i == 0) {
                                $item['active'] = true;
                        }

                        //title -> label
                        if (isset($item['title'])) {
                                if (!isset($item['label'])) {
                                        $item['label'] = $item['title'];
                                }
                                unset($item['title']);
                        }
                        //------   end new ----------------

                        if (!isset($item['itemOptions'])) {
                                $item['itemOptions'] = array();
                        }

                        $item['linkOptions']['data-toggle'] = 'tab';

                        if (isset($tab['items'])) {
                                $item['items'] = $this->normalizeTabs($item['items'], $panes, $i);
                        } else {
                                if (!isset($item['id'])) {
                                        $item['id'] = $id . '_tab_' . ($i + 1);
                                }

                                $item['url'] = '#' . $item['id'];

                                //if (!isset($item['content'])) removed
                                //      $item['content'] = '';

                                //--------------- new ---------------
                                if (!isset($item['content'])) {
                                        if (isset($item['view'])) {
                                                if (isset($item['data'])) {
                                                        if (is_array($this->viewData)) {
                                                                $data = array_merge($this->viewData, $item['data']);
                                                        } else {
                                                                $data = $item['data'];
                                                        }

                                                        unset($item['data']);
                                                } else {
                                                        $data = $this->viewData;
                                                }

                                                $item['content'] = $this->getController()->renderPartial($item['view'], $data, true);

                                                unset($item['view']);
                                        } else {
                                                $item['content'] = '';
                                        }
                                }
                                //--------------- end new ---------------

                                $content = $item['content'];
                                unset($item['content']);

                                if (!isset($item['paneOptions'])) {
                                        $item['paneOptions'] = array();
                                }

                                $paneOptions = $item['paneOptions'];
                                unset($item['paneOptions']);

                                $paneOptions['id'] = $item['id'];

                                $classes = array('tab-pane fade');

                                if (isset($item['active']) && $item['active']) {
                                        $classes[] = 'active in';
                                }

                                $classes = implode(' ', $classes);
                                if (isset($paneOptions['class'])) {
                                        $paneOptions['class'] .= ' ' . $classes;
                                } else {
                                        $paneOptions['class'] = $classes;
                                }

                                $panes[] = CHtml::tag('div', $paneOptions, $content);

                                $i++; // increment the tab-index
                        }

                        $items[] = $item;
                }

                return $items;
        }

}