PhabricatorUIExampleRenderController.php
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	<?php

	final class PhabricatorUIExampleRenderController extends PhabricatorController {

	private $class;

	public function shouldAllowPublic() {
	return true;
	}

	public function willProcessRequest(array $data) {
	$this->class = idx($data, 'class');
	}

	public function processRequest() {

	$classes = id(new PhutilSymbolLoader())
	->setAncestorClass('PhabricatorUIExample')
	->loadObjects();
	$classes = msort($classes, 'getName');

	$nav = new AphrontSideNavFilterView();
	$nav->setBaseURI(new PhutilURI($this->getApplicationURI('view/')));

	foreach ($classes as $class => $obj) {
	$name = $obj->getName();
	$nav->addFilter($class, $name);
	}

	$selected = $nav->selectFilter($this->class, head_key($classes));

	$example = $classes[$selected];
	$example->setRequest($this->getRequest());

	$result = $example->renderExample();
	if ($result instanceof AphrontResponse) {
	// This allows examples to generate dialogs, etc., for demonstration.
	return $result;
	}

	require_celerity_resource('phabricator-ui-example-css');

	$crumbs = $this->buildApplicationCrumbs();
	$crumbs->addTextCrumb($example->getName());

	$header = id(new PHUIHeaderView())
	->setHeader(pht('%s (%s)', $example->getName(), get_class($example)))
	->setSubheader($example->getDescription())
	->setNoBackground(true);

	$nav->appendChild(
	array(
	$crumbs,
	$header,
	phutil_tag('br'),
	$result,
	));

	return $this->buildApplicationPage(
	$nav,
	array(
	'title' => $example->getName(),
	));
	}

	}