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<?php
/* Icinga Web 2 | (c) 2015 Icinga Development Team | GPLv2+ */
namespace Icinga\Web\Navigation\Renderer;
use Exception;
use RecursiveIteratorIterator;
use Icinga\Exception\IcingaException;
use Icinga\Web\Navigation\Navigation;
use Icinga\Web\Navigation\NavigationItem;
use Icinga\Web\Navigation\Renderer\NavigationItemRenderer;
/**
* Renderer for multi level navigation
*
* @method NavigationRenderer getInnerIterator() {
* {@inheritdoc}
* }
*/
class RecursiveNavigationRenderer extends RecursiveIteratorIterator implements NavigationRendererInterface
{
/**
* The content rendered so far
*
* @var array
*/
protected $content;
/**
* Whether to use the standard item renderer
*
* @var bool
*/
protected $useStandardRenderer;
/**
* Create a new RecursiveNavigationRenderer
*
* @param Navigation $navigation
*/
public function __construct(Navigation $navigation)
{
$this->content = array();
parent::__construct(
new NavigationRenderer($navigation, true),
RecursiveIteratorIterator::SELF_FIRST
);
}
/**
* Set whether to use the standard navigation item renderer
*
* @param bool $state
*
* @return $this
*/
public function setUseStandardItemRenderer($state = true)
{
$this->useStandardRenderer = (bool) $state;
return $this;
}
/**
* Return whether to use the standard navigation item renderer
*
* @return bool
*/
public function getUseStandardItemRenderer()
{
return $this->useStandardRenderer;
}
/**
* {@inheritdoc}
*/
public function setElementTag($tag)
{
$this->getInnerIterator()->setElementTag($tag);
return $this;
}
/**
* {@inheritdoc}
*/
public function getElementTag()
{
return $this->getInnerIterator()->getElementTag();
}
/**
* {@inheritdoc}
*/
public function setCssClass($class)
{
$this->getInnerIterator()->setCssClass($class);
return $this;
}
/**
* {@inheritdoc}
*/
public function getCssClass()
{
return $this->getInnerIterator()->getCssClass();
}
/**
* {@inheritdoc}
*/
public function setHeading($heading)
{
$this->getInnerIterator()->setHeading($heading);
return $this;
}
/**
* {@inheritdoc}
*/
public function getHeading()
{
return $this->getInnerIterator()->getHeading();
}
public function beginIteration(): void
{
$this->content[] = $this->getInnerIterator()->beginMarkup();
}
public function endIteration(): void
{
$this->content[] = $this->getInnerIterator()->endMarkup();
}
public function beginChildren(): void
{
$this->content[] = $this->getInnerIterator()->beginChildrenMarkup($this->getDepth() + 1);
}
public function endChildren(): void
{
$this->content[] = $this->getInnerIterator()->endChildrenMarkup();
$this->content[] = $this->getInnerIterator()->endItemMarkup();
}
/**
* {@inheritdoc}
*/
public function render()
{
foreach ($this as $item) {
/** @var NavigationItem $item */
if ($item->shouldRender()) {
if ($this->getDepth() > 0) {
$item->setIcon(null);
}
if ($this->getUseStandardItemRenderer()) {
$renderer = new NavigationItemRenderer();
$content = $renderer->render($item);
} else {
$content = $item->render();
}
$this->content[] = $this->getInnerIterator()->beginItemMarkup($item);
$this->content[] = $content;
if (! $item->hasChildren()) {
$this->content[] = $this->getInnerIterator()->endItemMarkup();
}
}
}
return join("\n", $this->content);
}
/**
* {@inheritdoc}
*/
public function __toString()
{
try {
return $this->render();
} catch (Exception $e) {
return IcingaException::describe($e);
}
}
}
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