AphrontFormView.php
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	<?php

	final class AphrontFormView extends AphrontView {

	private $action;
	private $method = 'POST';
	private $header;
	private $data = array();
	private $encType;
	private $workflow;
	private $id;
	private $sigils = array();
	private $metadata;
	private $controls = array();
	private $fullWidth = false;
	private $classes = array();

	public function setMetadata($metadata) {
	$this->metadata = $metadata;
	return $this;
	}

	public function getMetadata() {
	return $this->metadata;
	}

	public function setID($id) {
	$this->id = $id;
	return $this;
	}

	public function setAction($action) {
	$this->action = $action;
	return $this;
	}

	public function setMethod($method) {
	$this->method = $method;
	return $this;
	}

	public function setEncType($enc_type) {
	$this->encType = $enc_type;
	return $this;
	}

	public function addHiddenInput($key, $value) {
	$this->data[$key] = $value;
	return $this;
	}

	public function setWorkflow($workflow) {
	$this->workflow = $workflow;
	return $this;
	}

	public function addSigil($sigil) {
	$this->sigils[] = $sigil;
	return $this;
	}

	public function addClass($class) {
	$this->classes[] = $class;
	return $this;
	}

	public function setFullWidth($full_width) {
	$this->fullWidth = $full_width;
	return $this;
	}

	public function getFullWidth() {
	return $this->fullWidth;
	}

	public function appendInstructions($text) {
	return $this->appendChild(
	phutil_tag(
	'div',
	array(
	'class' => 'aphront-form-instructions',
	),
	$text));
	}

	public function appendRemarkupInstructions($remarkup) {
	$view = $this->newInstructionsRemarkupView($remarkup);
	return $this->appendInstructions($view);
	}

	public function newInstructionsRemarkupView($remarkup) {
	$viewer = $this->getViewer();
	$view = new PHUIRemarkupView($viewer, $remarkup);

	$view->setRemarkupOptions(
	array(
	PHUIRemarkupView::OPTION_PRESERVE_LINEBREAKS => false,
	));

	return $view;
	}

	public function buildLayoutView() {
	foreach ($this->controls as $control) {
	$control->setViewer($this->getViewer());
	$control->willRender();
	}

	return id(new PHUIFormLayoutView())
	->setFullWidth($this->getFullWidth())
	->appendChild($this->renderDataInputs())
	->appendChild($this->renderChildren());
	}


	/**
	* Append a control to the form.
	*
	* This method behaves like @{method:appendChild}, but it only takes
	* controls. It will propagate some information from the form to the
	* control to simplify rendering.
	*
	* @param AphrontFormControl $control Control to append.
	* @return this
	*/
	public function appendControl(AphrontFormControl $control) {
	$this->controls[] = $control;
	return $this->appendChild($control);
	}


	public function render() {
	require_celerity_resource('phui-form-view-css');

	$layout = $this->buildLayoutView();

	if (!$this->hasViewer()) {
	throw new Exception(
	pht(
	'You must pass the user to %s.',
	__CLASS__));
	}

	$sigils = $this->sigils;
	if ($this->workflow) {
	$sigils[] = 'workflow';
	}

	return phabricator_form(
	$this->getViewer(),
	array(
	'class' => implode(' ', $this->classes),
	'action' => $this->action,
	'method' => $this->method,
	'enctype' => $this->encType,
	'sigil' => $sigils ? implode(' ', $sigils) : null,
	'meta' => $this->metadata,
	'id' => $this->id,
	),
	$layout->render());
	}

	private function renderDataInputs() {
	$inputs = array();
	foreach ($this->data as $key => $value) {
	if ($value === null) {
	continue;
	}
	$inputs[] = phutil_tag(
	'input',
	array(
	'type' => 'hidden',
	'name' => $key,
	'value' => $value,
	));
	}
	return $inputs;
	}

	}

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