wp-optimize / vendor / team-updraft / common-libs / src / updraft-theme / theme.php

theme.php in WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance 4.7.0, at vendor/team-updraft/common-libs/src/updraft-theme/theme.php

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1	<?php
2	/**
3	* Updraft Theme.
4	*/
5
6	if (!defined('ABSPATH')) die('Access denied.');
7
8	define('TU_THEME_DIR', dirname(__FILE__));
9	define('TU_THEME_URL', trailingslashit(plugins_url('', __FILE__)));
10
11	class TU_Theme {
12	const VERSION = '0.1';
13
14	protected static $_instance = null;
15
16	/**
17	* Creates an instance of this class. Singleton Pattern
18	*
19	* @return object Instance of this class
20	*/
21	public static function instance() {
22	if (empty(self::$_instance)) {
23	self::$_instance = new self();
24	}
25
26	return self::$_instance;
27	}
28
29	/**
30	* Returns the version to use when enqueueing or loading scripts and styles.
31	* If WP_DEBUG is on then time is padded to the VERSION constant.
32	*
33	* @return string
34	*/
35	private function get_enqueue_version() {
36	return (defined('WP_DEBUG') && WP_DEBUG) ? self::VERSION.'.'.time() : self::VERSION;
37	}
38
39	/**
40	* Load the components on the front-end of the site.
41	*
42	* @return void
43	*/
44	public function load_assets_on_frontend() {
45	add_action('wp_enqueue_scripts', array($this, 'load_css'), 20);
46	add_action('wp_enqueue_scripts', array($this, 'load_js'), 20);
47	}
48
49	/**
50	* Load the components on the wp-admin(backend) of the site.
51	*
52	* @return void
53	*/
54	public function load_assets_on_backend() {
55	add_action('admin_enqueue_scripts', array($this, 'load_css'), 20);
56	add_action('admin_enqueue_scripts', array($this, 'load_js'), 20);
57	}
58
59	/**
60	* Returns all the handlebar template's contents keyed by their path and name.
61	*
62	* @return array
63	*/
64	public function get_handlebar_templates() {
65	$base_directory = TU_THEME_DIR . '/components/';
66	$templates_array = array();
67
68	// Recursive directory iterator to find all .handlebars.html files
69	$iterator = new RecursiveIteratorIterator(
70	new RecursiveDirectoryIterator($base_directory),
71	RecursiveIteratorIterator::SELF_FIRST
72	);
73
74	foreach ($iterator as $file) {
75	// Check for '.' and '..' and skip them.
76	if ($file->getFilename() === '.' \|\| $file->getFilename() === '..') {
77	continue;
78	}
79
80	if ($file->isFile() && preg_match('/\.handlebars\.html$/', $file->getFilename())) {
81	// Get relative path from base directory
82	$relative_path = str_replace($base_directory, '', $file->getPathname());
83
84	// Remove extension
85	$relative_path = preg_replace('/\.handlebars\.html$/', '', $relative_path);
86
87	// Replace directory separators with hyphens
88	$key = str_replace(DIRECTORY_SEPARATOR, '-', $relative_path);
89
90	// Store file contents
91	$templates_array[$key] = file_get_contents($file->getPathname());
92	}
93	}
94
95	return $templates_array;
96	}
97
98	/**
99	* Load CSS.
100	*/
101	public function load_css() {
102	$enqueue_version = $this->get_enqueue_version();
103
104	// Global critical styles.
105	wp_enqueue_style('tu-global-theme', TU_THEME_URL.'theme.css', array(), $enqueue_version);
106
107	// Allow projects to opt-out from theme colors and enqueue there own colors.
108	if (apply_filters('tu_theme_load_colors', true)) {
109	wp_enqueue_style('tu-theme-colors', TU_THEME_URL.'theme-colors.css', array(), $enqueue_version);
110	}
111	}
112
113	/**
114	* Load JS.
115	*/
116	public function load_js() {
117	$enqueue_version = $this->get_enqueue_version();
118
119	wp_enqueue_script('tu-theme-handlebars-library', TU_THEME_URL . 'handlebar-library/handlebars.min.js', array(), $enqueue_version, false);
120	wp_enqueue_script('tu-theme', TU_THEME_URL . 'theme.js', array('tu-theme-handlebars-library'), $enqueue_version, false);
121	wp_localize_script(
122	'tu-theme',
123	'TU_Theme',
124	array(
125	'handlebar_templates' => $this->get_handlebar_templates(),
126	)
127	);
128	}
129	}