depicter / vendor / symfony / console / Question / ChoiceQuestion.php

ChoiceQuestion.php in Depicter — Popup & Slider Builder 1.2.0, at vendor/symfony/console/Question/ChoiceQuestion.php

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1	<?php
2
3	/*
4	* This file is part of the Symfony package.
5	*
6	* (c) Fabien Potencier <fabien@symfony.com>
7	*
8	* For the full copyright and license information, please view the LICENSE
9	* file that was distributed with this source code.
10	*/
11
12	namespace Symfony\Component\Console\Question;
13
14	use Symfony\Component\Console\Exception\InvalidArgumentException;
15
16	/**
17	* Represents a choice question.
18	*
19	* @author Fabien Potencier <fabien@symfony.com>
20	*/
21	class ChoiceQuestion extends Question
22	{
23	private $choices;
24	private $multiselect = false;
25	private $prompt = ' > ';
26	private $errorMessage = 'Value "%s" is invalid';
27
28	/**
29	* @param string $question The question to ask to the user
30	* @param array $choices The list of available choices
31	* @param mixed $default The default answer to return
32	*/
33	public function __construct(string $question, array $choices, $default = null)
34	{
35	if (!$choices) {
36	throw new \LogicException('Choice question must have at least 1 choice available.');
37	}
38
39	parent::__construct($question, $default);
40
41	$this->choices = $choices;
42	$this->setValidator($this->getDefaultValidator());
43	$this->setAutocompleterValues($choices);
44	}
45
46	/**
47	* Returns available choices.
48	*
49	* @return array
50	*/
51	public function getChoices()
52	{
53	return $this->choices;
54	}
55
56	/**
57	* Sets multiselect option.
58	*
59	* When multiselect is set to true, multiple choices can be answered.
60	*
61	* @return $this
62	*/
63	public function setMultiselect(bool $multiselect)
64	{
65	$this->multiselect = $multiselect;
66	$this->setValidator($this->getDefaultValidator());
67
68	return $this;
69	}
70
71	/**
72	* Returns whether the choices are multiselect.
73	*
74	* @return bool
75	*/
76	public function isMultiselect()
77	{
78	return $this->multiselect;
79	}
80
81	/**
82	* Gets the prompt for choices.
83	*
84	* @return string
85	*/
86	public function getPrompt()
87	{
88	return $this->prompt;
89	}
90
91	/**
92	* Sets the prompt for choices.
93	*
94	* @return $this
95	*/
96	public function setPrompt(string $prompt)
97	{
98	$this->prompt = $prompt;
99
100	return $this;
101	}
102
103	/**
104	* Sets the error message for invalid values.
105	*
106	* The error message has a string placeholder (%s) for the invalid value.
107	*
108	* @return $this
109	*/
110	public function setErrorMessage(string $errorMessage)
111	{
112	$this->errorMessage = $errorMessage;
113	$this->setValidator($this->getDefaultValidator());
114
115	return $this;
116	}
117
118	private function getDefaultValidator(): callable
119	{
120	$choices = $this->choices;
121	$errorMessage = $this->errorMessage;
122	$multiselect = $this->multiselect;
123	$isAssoc = $this->isAssoc($choices);
124
125	return function ($selected) use ($choices, $errorMessage, $multiselect, $isAssoc) {
126	if ($multiselect) {
127	// Check for a separated comma values
128	if (!preg_match('/^[^,]+(?:,[^,]+)*$/', $selected, $matches)) {
129	throw new InvalidArgumentException(sprintf($errorMessage, $selected));
130	}
131
132	$selectedChoices = explode(',', $selected);
133	} else {
134	$selectedChoices = [$selected];
135	}
136
137	if ($this->isTrimmable()) {
138	foreach ($selectedChoices as $k => $v) {
139	$selectedChoices[$k] = trim($v);
140	}
141	}
142
143	$multiselectChoices = [];
144	foreach ($selectedChoices as $value) {
145	$results = [];
146	foreach ($choices as $key => $choice) {
147	if ($choice === $value) {
148	$results[] = $key;
149	}
150	}
151
152	if (\count($results) > 1) {
153	throw new InvalidArgumentException(sprintf('The provided answer is ambiguous. Value should be one of "%s".', implode('" or "', $results)));
154	}
155
156	$result = array_search($value, $choices);
157
158	if (!$isAssoc) {
159	if (false !== $result) {
160	$result = $choices[$result];
161	} elseif (isset($choices[$value])) {
162	$result = $choices[$value];
163	}
164	} elseif (false === $result && isset($choices[$value])) {
165	$result = $value;
166	}
167
168	if (false === $result) {
169	throw new InvalidArgumentException(sprintf($errorMessage, $value));
170	}
171
172	$multiselectChoices[] = (string) $result;
173	}
174
175	if ($multiselect) {
176	return $multiselectChoices;
177	}
178
179	return current($multiselectChoices);
180	};
181	}
182	}
183