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<?php
/*
* Textpattern Content Management System
* https://textpattern.com/
*
* Copyright (C) 2026 The Textpattern Development Team
*
* This file is part of Textpattern.
*
* Textpattern is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, version 2.
*
* Textpattern is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Textpattern. If not, see <https://www.gnu.org/licenses/>.
*/
/**
* A <select /> list tag.
*
* @since 4.9.0
* @package UI
*/
namespace Textpattern\UI;
class Select extends Tag implements UIInterface
{
/**
* List of option key => labels in the select.
*
* @var array
*/
protected $options = array();
/**
* List of option groups with corresponding option keys.
*
* @var array
*/
protected $optGroups = array();
/**
* The current optGroup that is 'open'.
*
* Any options added while this is set will automatically be added to the group.
*
* @var string
*/
protected $currentGroup = null;
/**
* Construct a select input with a bunch of options.
*
* @param string $name The Select key (HTML name attribute)
* @param array $options Key => Label pairs
* @param array|string $default Which option(s) are selected by default
*/
public function __construct($name, $options = array(), $default = null)
{
parent::__construct('select');
$this->setKey($name)
->setAtt('name', $name);
if ($default === null) {
$default = array();
} elseif (!is_array($default)) {
$default = do_list($default);
}
// This doesn't guarantee multiple. Will fail if the default/current set only has one item selected.
// Calling ->setMultiple() manually is recommended.
if (count($default) > 1) {
$this->setMultiple();
}
if (!is_array($default)) {
$default = array($default);
}
foreach ($options as $avalue => $alabel) {
$this->addOption($avalue, $alabel, in_array($avalue, $default));
}
}
/**
* Add an option to the select.
*
* The value and label will be internally escaped and assume dir="auto". Chainable.
*
* @param string $value The option key (HTML value attribute)
* @param string $label The option text
* @param boolean $checked True if the option is to be selected
* @param string $group The group label to add this option to
*/
public function addOption($value, $label, $checked = false, $group = null)
{
$option = new \Textpattern\UI\Option(
txpspecialchars($value),
txpspecialchars($label),
$checked
);
$option->setAtt('dir', 'auto');
if ($group === null && $this->currentGroup !== null) {
$group = $this->currentGroup;
}
if ($group !== null) {
if (!isset($this->optGroups[$group])) {
$this->addOptGroup($group);
}
$this->optGroups[$group]->add($option, $value);
} else {
$this->options[$value] = $option;
}
return $this;
}
/**
* Add an option group to the select. Chainable.
*
* @param string $label The optgroup label
*/
public function addOptGroup($label)
{
$optGroup = new \Textpattern\UI\OptGroup(
txpspecialchars($label)
);
$optGroup->setAtt('dir', 'auto');
$this->optGroups[$label] = $optGroup;
$this->currentGroup = $label;
return $this;
}
/**
* Add an empty element to the beginning of the options. Chainable.
*/
public function blankFirst()
{
$emptyOption = new \Textpattern\UI\Option('', ' ');
array_unshift($this->options, $emptyOption);
return $this;
}
/**
* Add the options as content and draw them.
*
* @param string $flavour To affect the flavour of tag returned - complete, self-closing, open, close, content
* @return string HTML
*/
public function render($flavour = null)
{
$out = array();
if (!$this->hasContent()) {
if ($this->optGroups) {
foreach ($this->optGroups as $optGroup) {
$out[] = $optGroup->render();
}
} else {
foreach ($this->options as $option) {
$out[] = $option->render();
}
}
$this->setContent(n.join(n, $out).n);
}
return parent::render($flavour);
}
}