AphrontFormCountedToggleButtonsControl.php
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	<?php

	final class AphrontFormCountedToggleButtonsControl extends AphrontFormControl {

	private $baseURI;
	private $param;

	private $buttons;
	private $counters = array();

	public function setBaseURI(PhutilURI $uri, $param) {
	$this->baseURI = $uri;
	$this->param = $param;
	return $this;
	}

	public function setButtons(array $buttons) {
	$this->buttons = $buttons;
	return $this;
	}

	public function setCounters(array $counters) {
	$this->counters = $counters;
	return $this;
	}

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

	protected function renderInput() {
	if (!$this->baseURI) {
	throw new Exception('Call setBaseURI() before render()!');
	}

	$selected = $this->getValue();

	$out = array();
	foreach ($this->buttons as $value => $label) {
	if ($value == $selected) {
	$more = ' toggle-selected toggle-fixed';
	} else {
	$more = null;
	}

	$counter = idx($this->counters, $value);

	if ($counter > 0) {
	$href = $this->baseURI->alter($this->param, $value);
	$counter_markup = phutil_tag(
	'div',
	array(
	'class' => 'counter',
	),
	$counter);
	} else {
	$href = null;
	$counter_markup = '';
	$more .= ' disabled';
	}

	$attributes = array(
	'class' => 'toggle'.$more,
	);
	if ($href) {
	$attributes['href'] = $href;
	}

	$out[] = phutil_tag(
	'a',
	$attributes,
	array(
	$counter_markup,
	$label));
	}

	return $out;
	}

	}