depicter / vendor / symfony / console / Formatter / OutputFormatterStyleStack.php

OutputFormatterStyleStack.php in Depicter — Popup & Slider Builder 1.3.2, at vendor/symfony/console/Formatter/OutputFormatterStyleStack.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\Formatter;
13
14	use Symfony\Component\Console\Exception\InvalidArgumentException;
15	use Symfony\Contracts\Service\ResetInterface;
16
17	/**
18	* @author Jean-François Simon <contact@jfsimon.fr>
19	*/
20	class OutputFormatterStyleStack implements ResetInterface
21	{
22	/**
23	* @var OutputFormatterStyleInterface[]
24	*/
25	private $styles;
26
27	private $emptyStyle;
28
29	public function __construct(OutputFormatterStyleInterface $emptyStyle = null)
30	{
31	$this->emptyStyle = $emptyStyle ?: new OutputFormatterStyle();
32	$this->reset();
33	}
34
35	/**
36	* Resets stack (ie. empty internal arrays).
37	*/
38	public function reset()
39	{
40	$this->styles = [];
41	}
42
43	/**
44	* Pushes a style in the stack.
45	*/
46	public function push(OutputFormatterStyleInterface $style)
47	{
48	$this->styles[] = $style;
49	}
50
51	/**
52	* Pops a style from the stack.
53	*
54	* @return OutputFormatterStyleInterface
55	*
56	* @throws InvalidArgumentException When style tags incorrectly nested
57	*/
58	public function pop(OutputFormatterStyleInterface $style = null)
59	{
60	if (empty($this->styles)) {
61	return $this->emptyStyle;
62	}
63
64	if (null === $style) {
65	return array_pop($this->styles);
66	}
67
68	foreach (array_reverse($this->styles, true) as $index => $stackedStyle) {
69	if ($style->apply('') === $stackedStyle->apply('')) {
70	$this->styles = \array_slice($this->styles, 0, $index);
71
72	return $stackedStyle;
73	}
74	}
75
76	throw new InvalidArgumentException('Incorrectly nested style tag found.');
77	}
78
79	/**
80	* Computes current style with stacks top codes.
81	*
82	* @return OutputFormatterStyle
83	*/
84	public function getCurrent()
85	{
86	if (empty($this->styles)) {
87	return $this->emptyStyle;
88	}
89
90	return $this->styles[\count($this->styles) - 1];
91	}
92
93	/**
94	* @return $this
95	*/
96	public function setEmptyStyle(OutputFormatterStyleInterface $emptyStyle)
97	{
98	$this->emptyStyle = $emptyStyle;
99
100	return $this;
101	}
102
103	/**
104	* @return OutputFormatterStyleInterface
105	*/
106	public function getEmptyStyle()
107	{
108	return $this->emptyStyle;
109	}
110	}
111