AphrontFormToggleButtonsControl.php
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	<?php

	/*
	* Copyright 2012 Facebook, Inc.
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	class AphrontFormToggleButtonsControl extends AphrontFormControl {

	private $baseURI;
	private $param;

	private $buttons;

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

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

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

	$out[] = phutil_render_tag(
	'a',
	array(
	'class' => 'toggle'.$more,
	'href' => $this->baseURI->alter($this->param, $value),
	),
	phutil_escape_html($label));
	}

	return implode('', $out);
	}

	}