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

Nested.php in MaxButtons – Create buttons 7.1.1, 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	use Leafo\ScssPhp\Formatter\OutputBlock;
16
17	/**
18	* SCSS nested formatter
19	*
20	* @author Leaf Corcoran <leafot@gmail.com>
21	*/
22	class Nested extends Formatter
23	{
24	/**
25	* @var integer
26	*/
27	private $depth;
28
29	/**
30	* {@inheritdoc}
31	*/
32	public function __construct()
33	{
34	$this->indentLevel = 0;
35	$this->indentChar = ' ';
36	$this->break = "\n";
37	$this->open = ' {';
38	$this->close = ' }';
39	$this->tagSeparator = ', ';
40	$this->assignSeparator = ': ';
41	}
42
43	/**
44	* {@inheritdoc}
45	*/
46	protected function indentStr()
47	{
48	$n = $this->depth - 1;
49
50	return str_repeat($this->indentChar, max($this->indentLevel + $n, 0));
51	}
52
53	/**
54	* {@inheritdoc}
55	*/
56	protected function blockLines(OutputBlock $block)
57	{
58	$inner = $this->indentStr();
59
60	$glue = $this->break . $inner;
61
62	foreach ($block->lines as $index => $line) {
63	if (substr($line, 0, 2) === '/*') {
64	$block->lines[$index] = preg_replace('/(\r\|\n)+/', $glue, $line);
65	}
66	}
67
68	echo $inner . implode($glue, $block->lines);
69
70	if (! empty($block->children)) {
71	echo $this->break;
72	}
73	}
74
75	/**
76	* {@inheritdoc}
77	*/
78	protected function blockSelectors(OutputBlock $block)
79	{
80	$inner = $this->indentStr();
81
82	echo $inner
83	. implode($this->tagSeparator, $block->selectors)
84	. $this->open . $this->break;
85	}
86
87	/**
88	* {@inheritdoc}
89	*/
90	protected function blockChildren(OutputBlock $block)
91	{
92	foreach ($block->children as $i => $child) {
93	$this->block($child);
94
95	if ($i < count($block->children) - 1) {
96	echo $this->break;
97
98	if (isset($block->children[$i + 1])) {
99	$next = $block->children[$i + 1];
100
101	if ($next->depth === max($block->depth, 1) && $child->depth >= $next->depth) {
102	echo $this->break;
103	}
104	}
105	}
106	}
107	}
108
109	/**
110	* {@inheritdoc}
111	*/
112	protected function block(OutputBlock $block)
113	{
114	if ($block->type === 'root') {
115	$this->adjustAllChildren($block);
116	}
117
118	if (empty($block->lines) && empty($block->children)) {
119	return;
120	}
121
122	$this->depth = $block->depth;
123
124	if (! empty($block->selectors)) {
125	$this->blockSelectors($block);
126
127	$this->indentLevel++;
128	}
129
130	if (! empty($block->lines)) {
131	$this->blockLines($block);
132	}
133
134	if (! empty($block->children)) {
135	$this->blockChildren($block);
136	}
137
138	if (! empty($block->selectors)) {
139	$this->indentLevel--;
140
141	echo $this->close;
142	}
143
144	if ($block->type === 'root') {
145	echo $this->break;
146	}
147	}
148
149	/**
150	* Adjust the depths of all children, depth first
151	*
152	* @param \Leafo\ScssPhp\Formatter\OutputBlock $block
153	*/
154	private function adjustAllChildren(OutputBlock $block)
155	{
156	// flatten empty nested blocks
157	$children = array();
158
159	foreach ($block->children as $i => $child) {
160	if (empty($child->lines) && empty($child->children)) {
161	if (isset($block->children[$i + 1])) {
162	$block->children[$i + 1]->depth = $child->depth;
163	}
164
165	continue;
166	}
167
168	$children[] = $child;
169	}
170
171	$count = count($children);
172
173	for ($i = 0; $i < $count; $i++) {
174	$depth = $children[$i]->depth;
175	$j = $i + 1;
176
177	if (isset($children[$j]) && $depth < $children[$j]->depth) {
178	$childDepth = $children[$j]->depth;
179
180	for (; $j < $count; $j++) {
181	if ($depth < $children[$j]->depth && $childDepth >= $children[$j]->depth) {
182	$children[$j]->depth = $depth + 1;
183	}
184	}
185	}
186	}
187
188	$block->children = $children;
189
190	// make relative to parent
191	foreach ($block->children as $child) {
192	$this->adjustAllChildren($child);
193
194	$child->depth = $child->depth - $block->depth;
195	}
196	}
197	}
198