jch-optimize / src / Platform / Profiler.php

Profiler.php in JCH Optimize trunk, at src/Platform/Profiler.php

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1	<?php
2
3	/**
4	* JCH Optimize - Performs several front-end optimizations for fast downloads
5	*
6	* @package jchoptimize/wordpress-platform
7	* @author Samuel Marshall <samuel@jch-optimize.net>
8	* @copyright Copyright (c) 2020 Samuel Marshall / JCH Optimize
9	* @license GNU/GPLv3, or later. See LICENSE file
10	*
11	* If LICENSE file missing, see <http://www.gnu.org/licenses/>.
12	*/
13
14	namespace JchOptimize\WordPress\Platform;
15
16	defined('_WP_EXEC') or die('Restricted access');
17
18	use JchOptimize\Core\Helper;
19	use JchOptimize\Core\Platform\ProfilerInterface;
20
21	use function __;
22	use function function_exists;
23	use function is_super_admin;
24	use function number_format;
25	use function number_format_i18n;
26	use function timer_stop;
27
28	class Profiler implements ProfilerInterface
29	{
30	/**
31	*
32	* @param string $html
33	* @param bool $isAmpPage
34	*/
35	public function attachProfiler(&$html, $isAmpPage = false): void
36	{
37	if (! is_super_admin() \|\| $isAmpPage) {
38	return;
39	}
40
41	$items = Profiler::mark(true);
42
43	$node = self::getAdminBarNodeBegin() . $items . self::getAdminBarNodeEnd();
44	$cdata = Helper::isXhtml($html) ? '/<![CDATA[/' : '';
45
46	$script = <<<HTML
47	<script>{$cdata}
48	const li = document.getElementById('wp-admin-bar-jch-optimize-profiler')
49	if (li !== null){
50	li.classList.add('menupop')
51	li.innerHTML = '{$node}'
52	}
53	{$cdata}</script>
54	HTML;
55
56	$html = str_replace('</body>', $script . '</body>', $html);
57	}
58
59	/**
60	*
61	* @staticvar string $item
62	*
63	* @param string\|true $text
64	*
65	* @return null\|string
66	*/
67	public function mark($text): ?string
68	{
69	static $item = '';
70
71	if ($text === true) {
72	return $item;
73	}
74
75	static $prevTime = 0.0;
76	if ($prevTime === 0.0) {
77	$prevTime = microtime(true);
78	}
79	$currentTime = microtime(true);
80	$timeInterval = ($currentTime - $prevTime) * 1000;
81	$prevTime = $currentTime;
82
83	$pageLoadTime = (float)timer_stop();
84
85	$timeIntervalFormatted = (function_exists('number_format_i18n'))
86	? number_format_i18n($timeInterval, 3)
87	: number_format($timeInterval, 3);
88
89	$item .= self::addAdminBarItem($pageLoadTime . ' (+' . $timeIntervalFormatted . 'ms) - ' . $text);
90
91	return null;
92	}
93
94	/**
95	*
96	* @param string $item
97	*
98	* @return string
99	*/
100	protected static function addAdminBarItem(string $item): string
101	{
102	static $counter = 0;
103	$counter++;
104
105	return <<<HTML
106	<li id="wp-admin-bar-jch-optimize-profiler-item{$counter}"><div class="ab-item ab-empty-item"><a class="ab-item">{$item}</a></div></li>
107	HTML;
108	}
109
110	/**
111	*
112	* @return string
113	*/
114	protected static function getAdminBarNodeBegin(): string
115	{
116	$profiler = __('Profiler', 'jch-optimize');
117
118	return <<<HTML
119	<div class="ab-item ab-empty-item" aria-haspopup="true"><span class="wp-admin-bar-arrow" aria-hidden="true"></span><span class="dashicons dashicons-dashboard jch-ms-icon"></span><span>{$profiler}</span></div><div class="ab-sub-wrapper"><ul id="wp-admin-bar-jch-optimize-profiler-default" class="ab-submenu" style="overflow:auto;max-height: 600px;">
120	HTML;
121	}
122
123	/**
124	*
125	* @return string
126	*/
127	protected static function getAdminBarNodeEnd(): string
128	{
129	return '</ul></div>';
130	}
131
132	/**
133	*
134	* @param string $text
135	* @param bool $mark
136	*/
137	public function start($text, $mark = false): void
138	{
139	if ($mark) {
140	self::mark('before' . $text);
141	}
142	}
143
144	/**
145	*
146	* @param string $text
147	* @param bool $mark
148	*/
149	public function stop($text, $mark = false): void
150	{
151	if ($mark) {
152	self::mark('after' . $text);
153	}
154	}
155	}
156