PhabricatorUIExampleRenderController.php
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	<?php

	final class PhabricatorUIExampleRenderController extends PhabricatorController {

	private $class;

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

	public function processRequest() {

	$classes = id(new PhutilSymbolLoader())
	->setAncestorClass('PhabricatorUIExample')
	->setConcreteOnly(true)
	->selectAndLoadSymbols();
	$classes = ipull($classes, 'name', 'name');

	foreach ($classes as $class => $ignored) {
	$classes[$class] = newv($class, array());
	}

	$classes = msort($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');

	$nav->appendChild(hsprintf(
	'<div class="phabricator-ui-example-header">'.
	'<h1 class="phabricator-ui-example-name">%s (%s)</h1>'.
	'<p class="phabricator-ui-example-description">%s</p>'.
	'</div>',
	$example->getName(),
	get_class($example),
	$example->getDescription()));

	$nav->appendChild($result);

	return $this->buildApplicationPage(
	$nav,
	array(
	'title' => 'UI Example',
	'device' => true,
	));
	}

	}