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<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Console\Question; use Symfony\Component\Console\Exception\InvalidArgumentException; use Symfony\Component\Console\Exception\LogicException; /** * Represents a Question. * * @author Fabien Potencier <fabien@symfony.com> */ class Question { private $question; private $attempts; private $hidden = false; private $hiddenFallback = true; private $autocompleterValues; private $validator; private $default; private $normalizer; /** * @param string $question The question to ask to the user * @param mixed $default The default answer to return if the user enters nothing */ public function __construct(string $question, $default = null) { $this->question = $question; $this->default = $default; } /** * Returns the question. * * @return string */ public function getQuestion() { return $this->question; } /** * Returns the default answer. * * @return mixed */ public function getDefault() { return $this->default; } /** * Returns whether the user response must be hidden. * * @return bool */ public function isHidden() { return $this->hidden; } /** * Sets whether the user response must be hidden or not. * * @param bool $hidden * * @return $this * * @throws LogicException In case the autocompleter is also used */ public function setHidden($hidden) { if ($this->autocompleterValues) { throw new LogicException('A hidden question cannot use the autocompleter.'); } $this->hidden = (bool) $hidden; return $this; } /** * In case the response can not be hidden, whether to fallback on non-hidden question or not. * * @return bool */ public function isHiddenFallback() { return $this->hiddenFallback; } /** * Sets whether to fallback on non-hidden question if the response can not be hidden. * * @param bool $fallback * * @return $this */ public function setHiddenFallback($fallback) { $this->hiddenFallback = (bool) $fallback; return $this; } /** * Gets values for the autocompleter. * * @return iterable|null */ public function getAutocompleterValues() { return $this->autocompleterValues; } /** * Sets values for the autocompleter. * * @param iterable|null $values * * @return $this * * @throws InvalidArgumentException * @throws LogicException */ public function setAutocompleterValues($values) { if (\is_array($values)) { $values = $this->isAssoc($values) ? array_merge(array_keys($values), array_values($values)) : array_values($values); } if (null !== $values && !\is_array($values) && !$values instanceof \Traversable) { throw new InvalidArgumentException('Autocompleter values can be either an array, `null` or a `Traversable` object.'); } if ($this->hidden) { throw new LogicException('A hidden question cannot use the autocompleter.'); } $this->autocompleterValues = $values; return $this; } /** * Sets a validator for the question. * * @param callable|null $validator * * @return $this */ public function setValidator(callable $validator = null) { $this->validator = $validator; return $this; } /** * Gets the validator for the question. * * @return callable|null */ public function getValidator() { return $this->validator; } /** * Sets the maximum number of attempts. * * Null means an unlimited number of attempts. * * @param int|null $attempts * * @return $this * * @throws InvalidArgumentException in case the number of attempts is invalid */ public function setMaxAttempts($attempts) { if (null !== $attempts && $attempts < 1) { throw new InvalidArgumentException('Maximum number of attempts must be a positive value.'); } $this->attempts = $attempts; return $this; } /** * Gets the maximum number of attempts. * * Null means an unlimited number of attempts. * * @return int|null */ public function getMaxAttempts() { return $this->attempts; } /** * Sets a normalizer for the response. * * The normalizer can be a callable (a string), a closure or a class implementing __invoke. * * @param callable $normalizer * * @return $this */ public function setNormalizer(callable $normalizer) { $this->normalizer = $normalizer; return $this; } /** * Gets the normalizer for the response. * * The normalizer can ba a callable (a string), a closure or a class implementing __invoke. * * @return callable */ public function getNormalizer() { return $this->normalizer; } protected function isAssoc($array) { return (bool) \count(array_filter(array_keys($array), 'is_string')); } }