PhabricatorUIExampleRenderController.php
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	<?php

	final class PhabricatorUIExampleRenderController extends PhabricatorController {

	public function shouldAllowPublic() {
	return true;
	}

	public function handleRequest(AphrontRequest $request) {
	$id = $request->getURIData('class');

	$classes = id(new PhutilClassMapQuery())
	->setAncestorClass('PhabricatorUIExample')
	->setSortMethod('getName')
	->execute();

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

	$groups = mgroup($classes, 'getCategory');
	ksort($groups);
	foreach ($groups as $group => $group_classes) {
	$nav->addLabel($group);
	foreach ($group_classes as $class => $obj) {
	$name = $obj->getName();
	$nav->addFilter($class, $name);
	}
	}

	$selected = $nav->selectFilter($id, 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());

	$note = id(new PHUIInfoView())
	->setTitle(pht('%s (%s)', $example->getName(), get_class($example)))
	->appendChild($example->getDescription())
	->setSeverity(PHUIInfoView::SEVERITY_NODATA);

	$nav->appendChild(
	array(
	$crumbs,
	$note,
	$result,
	));

	return $this->newPage()
	->setTitle($example->getName())
	->appendChild($nav);
	}

	}