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3 years ago
<?php
namespace core\components\bootstrap4\widgets;
use Exception;
use yii\base\InvalidConfigException;
use yii\bootstrap\Widget;
use yii\helpers\Html;
use yii\helpers\ArrayHelper;
class Tab4 extends Widget
{
public array $items = [];
public array $itemOptions = [];
public array $headerOptions = ['class' => 'nav-item'];
public array $linkOptions = ['class' => 'nav-link'];
public bool $encodeLabels = true;
public string $navType = 'nav-tabs';
public bool $renderTabContent = true;
public array $tabContentOptions = [];
public string $dropdownClass = 'yii\bootstrap\Dropdown';
public string $template = '{headers}{panes}';
public function init()
{
parent::init();
Html::addCssClass($this->options, ['widget' => 'nav nav-tabs', $this->navType]);
Html::addCssClass($this->tabContentOptions, 'tab-content');
}
/**
* Renders the widget.
* @throws InvalidConfigException
*/
public function run(): string
{
$this->registerPlugin('tab');
return $this->renderItems();
}
/**
* Renders tab items as specified on [[items]].
* @return string the rendering result.
* @throws InvalidConfigException.
* @throws Exception
*/
protected function renderItems(): string
{
$headers = [];
$panes = [];
if (!$this->hasActiveTab()) {
$this->activateFirstVisibleTab();
}
foreach ($this->items as $n => $item) {
if (!ArrayHelper::remove($item, 'visible', true)) {
continue;
}
if (!array_key_exists('label', $item)) {
throw new InvalidConfigException("The 'label' option is required.");
}
$encodeLabel = $item['encode'] ?? $this->encodeLabels;
$label = $encodeLabel ? Html::encode($item['label']) : $item['label'];
$headerOptions = array_merge($this->headerOptions, ArrayHelper::getValue($item, 'headerOptions', []));
$linkOptions = array_merge($this->linkOptions, ArrayHelper::getValue($item, 'linkOptions', []));
if (isset($item['items'])) {
$label .= ' <b class="caret"></b>';
Html::addCssClass($headerOptions, ['widget' => 'dropdown']);
if ($this->renderDropdown($n, $item['items'], $panes)) {
Html::addCssClass($headerOptions, 'active');
}
Html::addCssClass($linkOptions, ['widget' => 'dropdown-toggle']);
if (!isset($linkOptions['data-toggle'])) {
$linkOptions['data-toggle'] = 'dropdown';
}
/** @var Widget $dropdownClass */
$dropdownClass = $this->dropdownClass;
$header = Html::a($label, "#", $linkOptions) . "\n"
. $dropdownClass::widget(['items' => $item['items'], 'clientOptions' => false, 'view' => $this->getView()]);
} else {
$options = array_merge($this->itemOptions, ArrayHelper::getValue($item, 'options', []));
$options['id'] = ArrayHelper::getValue($options, 'id', $this->options['id'] . '-tab' . $n);
Html::addCssClass($options, ['widget' => 'tab-pane']);
if (ArrayHelper::remove($item, 'active')) {
Html::addCssClass($options, 'active');
Html::addCssClass($linkOptions, 'active');
}
if (isset($item['url'])) {
$header = Html::a($label, $item['url'], $linkOptions);
} else {
if (!isset($linkOptions['data-toggle'])) {
$linkOptions['data-toggle'] = 'tab';
}
$header = Html::a($label, '#' . $options['id'], $linkOptions);
}
if ($this->renderTabContent) {
$tag = ArrayHelper::remove($options, 'tag', 'div');
$panes[] = Html::tag($tag, $item['content'] ?? '', $options);
}
}
$headers[] = Html::tag('li', $header, $headerOptions);
}
$headersHtml = Html::tag('ul', implode("\n", $headers), $this->options);
$panesHtml = $this->renderPanes($panes);
return strtr($this->template, [
'{headers}' => $headersHtml,
'{panes}' => $panesHtml,
]);
}
/**
* @return bool if there's active tab defined
*/
protected function hasActiveTab(): bool
{
foreach ($this->items as $item) {
if (isset($item['active']) && $item['active'] === true) {
return true;
}
}
return false;
}
/**
* @throws Exception
*/
protected function activateFirstVisibleTab()
{
foreach ($this->items as $i => $item) {
$active = ArrayHelper::getValue($item, 'active');
$visible = ArrayHelper::getValue($item, 'visible', true);
if ($visible && $active !== false) {
$this->items[$i]['active'] = true;
return;
}
}
}
/**
* @throws InvalidConfigException
* @throws Exception
*/
protected function renderDropdown(string $itemNumber, array &$items, array &$panes): bool
{
$itemActive = false;
foreach ($items as $n => &$item) {
if (is_string($item)) {
continue;
}
if (isset($item['visible']) && !$item['visible']) {
continue;
}
if (!(array_key_exists('content', $item) xor array_key_exists('url', $item))) {
throw new InvalidConfigException("Either the 'content' or the 'url' option is required, but only one can be set.");
}
if (array_key_exists('url', $item)) {
continue;
}
$content = ArrayHelper::remove($item, 'content');
$options = ArrayHelper::remove($item, 'contentOptions', []);
Html::addCssClass($options, ['widget' => 'tab-pane']);
if (ArrayHelper::remove($item, 'active')) {
Html::addCssClass($options, 'active');
Html::addCssClass($item['options'], 'active');
$itemActive = true;
}
$options['id'] = ArrayHelper::getValue($options, 'id', $this->options['id'] . '-dd' . $itemNumber . '-tab' . $n);
$item['url'] = '#' . $options['id'];
if (!isset($item['linkOptions']['data-toggle'])) {
$item['linkOptions']['data-toggle'] = 'tab';
}
$panes[] = Html::tag('div', $content, $options);
unset($item);
}
return $itemActive;
}
public function renderPanes(array $panes): string
{
return $this->renderTabContent ? "\n" . Html::tag('div', implode("\n", $panes), $this->tabContentOptions) : '';
}
}