elementor / core / responsive / files / frontend.php

frontend.php in Elementor Website Builder – more than just a page builder 3.5.0-beta1, at core/responsive/files/frontend.php

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1	<?php
2
3	namespace Elementor\Core\Responsive\Files;
4
5	use Elementor\Core\Breakpoints\Breakpoint;
6	use Elementor\Core\Files\Base;
7	use Elementor\Core\Responsive\Responsive;
8	use Elementor\Plugin;
9
10	if ( ! defined( 'ABSPATH' ) ) {
11	exit; // Exit if accessed directly
12	}
13
14	class Frontend extends Base {
15
16	const META_KEY = 'elementor-custom-breakpoints-files';
17
18	private $template_file;
19
20	/**
21	* @since 2.1.0
22	* @access public
23	*/
24	public function __construct( $file_name, $template_file = null ) {
25	$this->template_file = $template_file;
26
27	parent::__construct( $file_name );
28	}
29
30	/**
31	* @since 2.1.0
32	* @access public
33	*/
34	public function parse_content() {
35	$breakpoints = Plugin::$instance->breakpoints->get_active_breakpoints();
36
37	$breakpoints_keys = array_keys( $breakpoints );
38
39	$file_content = file_get_contents( $this->template_file );
40
41	// The regex pattern parses placeholders located in the frontend _templates.scss file.
42	$file_content = preg_replace_callback( '/ELEMENTOR_SCREEN_([A-Z_]+)(?:_(MIN\|MAX\|NEXT))/', function ( $placeholder_data ) use ( $breakpoints_keys, $breakpoints ) {
43	// Handle BC for legacy template files and Elementor Pro builds.
44	$placeholder_data = $this->maybe_convert_placeholder_data( $placeholder_data );
45
46	$breakpoint_index = array_search( strtolower( $placeholder_data[1] ), $breakpoints_keys, true );
47
48	if ( 'DESKTOP' === $placeholder_data[1] ) {
49	if ( 'MIN' === $placeholder_data[2] ) {
50	$value = Plugin::$instance->breakpoints->get_desktop_min_point();
51	} elseif ( isset( $breakpoints['widescreen'] ) ) {
52	// If the 'widescreen' breakpoint is active, the Desktop's max value is the Widescreen breakpoint - 1px.
53	$value = $breakpoints['widescreen']->get_value() - 1;
54	} else {
55	// If the 'widescreen' breakpoint is not active, the Desktop device should not have a max value.
56	$value = 99999;
57	}
58	} elseif ( false === $breakpoint_index ) {
59	// If the breakpoint in the placeholder is not active - use a -1 value for the media query, to make
60	// sure the setting is printed (to avoid a PHP error) but doesn't apply.
61	$value = -1;
62	} elseif ( 'WIDESCREEN' === $placeholder_data[1] ) {
63	$value = $breakpoints['widescreen']->get_value();
64	} else {
65	$breakpoint_index = array_search( strtolower( $placeholder_data[1] ), $breakpoints_keys, true );
66
67	$is_max_point = 'MAX' === $placeholder_data[2];
68
69	// If the placeholder capture is `MOBILE_NEXT` or `TABLET_NEXT`, the original breakpoint value is used.
70	if ( ! $is_max_point && 'NEXT' !== $placeholder_data[2] ) {
71	$breakpoint_index--;
72	}
73
74	$value = $breakpoints[ $breakpoints_keys[ $breakpoint_index ] ]->get_value();
75
76	if ( ! $is_max_point ) {
77	$value++;
78	}
79	}
80
81	return $value . 'px';
82	}, $file_content );
83
84	return $file_content;
85	}
86
87	/**
88	* Load meta.
89	*
90	* Retrieve the file meta data.
91	*
92	* @since 2.1.0
93	* @access protected
94	*/
95	protected function load_meta() {
96	$option = $this->load_meta_option();
97
98	$file_meta_key = $this->get_file_meta_key();
99
100	if ( empty( $option[ $file_meta_key ] ) ) {
101	return [];
102	}
103
104	return $option[ $file_meta_key ];
105	}
106
107	/**
108	* Update meta.
109	*
110	* Update the file meta data.
111	*
112	* @since 2.1.0
113	* @access protected
114	*
115	* @param array $meta New meta data.
116	*/
117	protected function update_meta( $meta ) {
118	$option = $this->load_meta_option();
119
120	$option[ $this->get_file_meta_key() ] = $meta;
121
122	update_option( static::META_KEY, $option );
123	}
124
125	/**
126	* Delete meta.
127	*
128	* Delete the file meta data.
129	*
130	* @since 2.1.0
131	* @access protected
132	*/
133	protected function delete_meta() {
134	$option = $this->load_meta_option();
135
136	$file_meta_key = $this->get_file_meta_key();
137
138	if ( isset( $option[ $file_meta_key ] ) ) {
139	unset( $option[ $file_meta_key ] );
140	}
141
142	if ( $option ) {
143	update_option( static::META_KEY, $option );
144	} else {
145	delete_option( static::META_KEY );
146	}
147	}
148
149	/**
150	* @since 2.1.0
151	* @access private
152	*/
153	private function get_file_meta_key() {
154	return pathinfo( $this->get_file_name(), PATHINFO_FILENAME );
155	}
156
157	/**
158	* @since 2.1.0
159	* @access private
160	*/
161	private function load_meta_option() {
162	$option = get_option( static::META_KEY );
163
164	if ( ! $option ) {
165	$option = [];
166	}
167
168	return $option;
169	}
170
171	/**
172	* Maybe Convert Placeholder Data
173	*
174	* Converts responsive placeholders in Elementor CSS template files from the legacy format into the new format.
175	* Used for backwards compatibility for old Pro versions that were built with an Elementor Core version <3.2.0.
176	*
177	* @since 3.2.3
178	*
179	* @param $placeholder_data
180	* @return mixed
181	*/
182	private function maybe_convert_placeholder_data( $placeholder_data ) {
183	switch ( $placeholder_data[1] ) {
184	case 'SM':
185	$placeholder_data[1] = 'MOBILE';
186	break;
187	case 'MD':
188	$placeholder_data[1] = 'TABLET';
189	break;
190	case 'LG':
191	$placeholder_data[1] = 'DESKTOP';
192	}
193
194	return $placeholder_data;
195	}
196	}
197