maxbuttons / assets / libraries / scssphp / src / Formatter / Nested.php

Nested.php in MaxButtons – Create buttons 6.4, at assets/libraries/scssphp/src/Formatter/Nested.php

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1	<?php
2	/**
3	* SCSSPHP
4	*
5	* @copyright 2012-2015 Leaf Corcoran
6	*
7	* @license http://opensource.org/licenses/MIT MIT
8	*
9	* @link http://leafo.github.io/scssphp
10	*/
11
12	namespace Leafo\ScssPhp\Formatter;
13
14	use Leafo\ScssPhp\Formatter;
15
16	/**
17	* SCSS nested formatter
18	*
19	* @author Leaf Corcoran <leafot@gmail.com>
20	*/
21	class Nested extends Formatter
22	{
23	/**
24	* @var integer
25	*/
26	private $depth;
27
28	/**
29	* {@inheritdoc}
30	*/
31	public function __construct()
32	{
33	$this->indentLevel = 0;
34	$this->indentChar = ' ';
35	$this->break = "\n";
36	$this->open = ' {';
37	$this->close = ' }';
38	$this->tagSeparator = ', ';
39	$this->assignSeparator = ': ';
40	}
41
42	/**
43	* {@inheritdoc}
44	*/
45	protected function indentStr()
46	{
47	$n = $this->depth - 1;
48
49	return str_repeat($this->indentChar, max($this->indentLevel + $n, 0));
50	}
51
52	/**
53	* {@inheritdoc}
54	*/
55	protected function blockLines($block)
56	{
57	$inner = $this->indentStr();
58
59	$glue = $this->break . $inner;
60
61	foreach ($block->lines as $index => $line) {
62	if (substr($line, 0, 2) === '/*') {
63	$block->lines[$index] = preg_replace('/(\r\|\n)+/', $glue, $line);
64	}
65	}
66
67	echo $inner . implode($glue, $block->lines);
68
69	if (! empty($block->children)) {
70	echo $this->break;
71	}
72	}
73
74	/**
75	* {@inheritdoc}
76	*/
77	protected function blockSelectors($block)
78	{
79	$inner = $this->indentStr();
80
81	echo $inner
82	. implode($this->tagSeparator, $block->selectors)
83	. $this->open . $this->break;
84	}
85
86	/**
87	* {@inheritdoc}
88	*/
89	protected function blockChildren($block)
90	{
91	foreach ($block->children as $i => $child) {
92	$this->block($child);
93
94	if ($i < count($block->children) - 1) {
95	echo $this->break;
96
97	if (isset($block->children[$i + 1])) {
98	$next = $block->children[$i + 1];
99
100	if ($next->depth === max($block->depth, 1) && $child->depth >= $next->depth) {
101	echo $this->break;
102	}
103	}
104	}
105	}
106	}
107
108	/**
109	* {@inheritdoc}
110	*/
111	protected function block($block)
112	{
113	if ($block->type === 'root') {
114	$this->adjustAllChildren($block);
115	}
116
117	$this->depth = $block->depth;
118
119	if (! empty($block->selectors)) {
120	$this->blockSelectors($block);
121
122	$this->indentLevel++;
123	}
124
125	if (! empty($block->lines)) {
126	$this->blockLines($block);
127	}
128
129	if (! empty($block->children)) {
130	$this->blockChildren($block);
131	}
132
133	if (! empty($block->selectors)) {
134	$this->indentLevel--;
135
136	echo $this->close;
137	}
138
139	if ($block->type === 'root') {
140	echo $this->break;
141	}
142	}
143
144	/**
145	* Adjust the depths of all children, depth first
146	*
147	* @param \stdClass $block
148	*/
149	private function adjustAllChildren($block)
150	{
151	// flatten empty nested blocks
152	$children = array();
153
154	foreach ($block->children as $i => $child) {
155	if (empty($child->lines) && empty($child->children)) {
156	if (isset($block->children[$i + 1])) {
157	$block->children[$i + 1]->depth = $child->depth;
158	}
159
160	continue;
161	}
162
163	$children[] = $child;
164	}
165
166	$count = count($children);
167
168	for ($i = 0; $i < $count; $i++) {
169	$depth = $children[$i]->depth;
170	$j = $i + 1;
171
172	if (isset($children[$j]) && $depth < $children[$j]->depth) {
173	$childDepth = $children[$j]->depth;
174
175	for (; $j < $count; $j++) {
176	if ($depth < $children[$j]->depth && $childDepth >= $children[$j]->depth) {
177	$children[$j]->depth = $depth + 1;
178	}
179	}
180	}
181	}
182
183	$block->children = $children;
184
185	// make relative to parent
186	foreach ($block->children as $child) {
187	$this->adjustAllChildren($child);
188
189	$child->depth = $child->depth - $block->depth;
190	}
191	}
192	}
193