AphrontFormTokenizerControl.php
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	<?php

	final class AphrontFormTokenizerControl extends AphrontFormControl {

	private $datasource;
	private $disableBehavior;
	private $limit;
	private $placeholder;
	private $handles;
	private $initialValue;

	public function setDatasource(PhabricatorTypeaheadDatasource $datasource) {
	$this->datasource = $datasource;
	return $this;
	}

	public function setDisableBehavior($disable) {
	$this->disableBehavior = $disable;
	return $this;
	}

	protected function getCustomControlClass() {
	return 'aphront-form-control-tokenizer';
	}

	public function setLimit($limit) {
	$this->limit = $limit;
	return $this;
	}

	public function setPlaceholder($placeholder) {
	$this->placeholder = $placeholder;
	return $this;
	}

	public function setInitialValue(array $initial_value) {
	$this->initialValue = $initial_value;
	return $this;
	}

	public function getInitialValue() {
	return $this->initialValue;
	}

	public function willRender() {
	// Load the handles now so we'll get a bulk load later on when we actually
	// render them.
	$this->loadHandles();
	}

	protected function renderInput() {
	$name = $this->getName();

	$handles = $this->loadHandles();
	$handles = iterator_to_array($handles);

	if ($this->getID()) {
	$id = $this->getID();
	} else {
	$id = celerity_generate_unique_node_id();
	}

	$datasource = $this->datasource;
	if (!$datasource) {
	throw new Exception(
	pht('You must set a datasource to use a TokenizerControl.'));
	}
	$datasource->setViewer($this->getUser());

	$placeholder = null;
	if (!phutil_nonempty_string($this->placeholder)) {
	$placeholder = $datasource->getPlaceholderText();
	}

	$values = nonempty($this->getValue(), array());
	$tokens = $datasource->renderTokens($values);

	foreach ($tokens as $token) {
	$token->setInputName($this->getName());
	}

	$template = id(new AphrontTokenizerTemplateView())
	->setName($name)
	->setID($id)
	->setValue($tokens);

	$initial_value = $this->getInitialValue();
	if ($initial_value !== null) {
	$template->setInitialValue($initial_value);
	}

	$username = null;
	if ($this->hasViewer()) {
	$username = $this->getViewer()->getUsername();
	}

	$datasource_uri = $datasource->getDatasourceURI();
	$browse_uri = $datasource->getBrowseURI();
	if ($browse_uri) {
	$template->setBrowseURI($browse_uri);
	}

	if (!$this->disableBehavior) {
	Javelin::initBehavior('aphront-basic-tokenizer', array(
	'id' => $id,
	'src' => $datasource_uri,
	'value' => mpull($tokens, 'getValue', 'getKey'),
	'icons' => mpull($tokens, 'getIcon', 'getKey'),
	'types' => mpull($tokens, 'getTokenType', 'getKey'),
	'colors' => mpull($tokens, 'getColor', 'getKey'),
	'availabilityColors' => mpull(
	$tokens,
	'getAvailabilityColor',
	'getKey'),
	'limit' => $this->limit,
	'username' => $username,
	'placeholder' => $placeholder,
	'browseURI' => $browse_uri,
	'disabled' => $this->getDisabled(),
	));
	}

	return $template->render();
	}

	private function loadHandles() {
	if ($this->handles === null) {
	$viewer = $this->getUser();
	if (!$viewer) {
	throw new Exception(
	pht(
	'Call %s before rendering tokenizers. '.
	'Use %s on %s to do this easily.',
	'setUser()',
	'appendControl()',
	'AphrontFormView'));
	}

	$values = nonempty($this->getValue(), array());

	$phids = array();
	foreach ($values as $value) {
	if (!PhabricatorTypeaheadDatasource::isFunctionToken($value)) {
	$phids[] = $value;
	}
	}

	$this->handles = $viewer->loadHandles($phids);
	}

	return $this->handles;
	}

	}

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