| 1 |
<?php |
| 2 |
|
| 3 |
namespace Templately\Core\Importer\Utils; |
| 4 |
|
| 5 |
/** |
| 6 |
* Merges Essential Blocks global styles (colors & typography) |
| 7 |
* into Gutenberg block content, resolving CSS variable references |
| 8 |
* and global font source references. |
| 9 |
* |
| 10 |
* Ported from templately-exporter GutenbergExporter::merge_settings(), |
| 11 |
* replace_colors(), and replace_fonts(). |
| 12 |
* |
| 13 |
* @since 3.x |
| 14 |
*/ |
| 15 |
class GutenbergSettingsMerger { |
| 16 |
|
| 17 |
/** |
| 18 |
* Global color entries: each has 'var' and 'color' keys. |
| 19 |
* @var array |
| 20 |
*/ |
| 21 |
private $colors = []; |
| 22 |
|
| 23 |
/** |
| 24 |
* Global font entries keyed by font ID / tag name. |
| 25 |
* @var array |
| 26 |
*/ |
| 27 |
private $fonts = []; |
| 28 |
|
| 29 |
/** |
| 30 |
* Font attribute names to copy when resolving a global font. |
| 31 |
* @var string[] |
| 32 |
*/ |
| 33 |
private $font_attrs = [ |
| 34 |
'fontFamily', |
| 35 |
'fontWeight', |
| 36 |
'textTransform', |
| 37 |
'textDecoration', |
| 38 |
'fontSize', |
| 39 |
'fontSizeUnit', |
| 40 |
'lineHeight', |
| 41 |
'lineHeightUnit', |
| 42 |
'letterSpacing', |
| 43 |
'letterSpacingUnit', |
| 44 |
]; |
| 45 |
|
| 46 |
/** |
| 47 |
* Responsive font attr names (also need TAB/MOB prefixes). |
| 48 |
* @var string[] |
| 49 |
*/ |
| 50 |
private $responsive_font_attrs = [ |
| 51 |
'fontSize', |
| 52 |
'fontSizeUnit', |
| 53 |
'lineHeight', |
| 54 |
'lineHeightUnit', |
| 55 |
'letterSpacing', |
| 56 |
'letterSpacingUnit', |
| 57 |
]; |
| 58 |
|
| 59 |
/** |
| 60 |
* Merge EB global styles into serialized Gutenberg block content. |
| 61 |
* |
| 62 |
* @param string $block_content Serialized block content (post_content format). |
| 63 |
* @param array $settings The EB global styles (keyed by setting type, |
| 64 |
* values are already decoded arrays matching |
| 65 |
* what GutenbergExporter::export() writes). |
| 66 |
* |
| 67 |
* @return string Modified block content with globals resolved. |
| 68 |
*/ |
| 69 |
public static function merge( string $block_content, array $settings ): string { |
| 70 |
$instance = new self(); |
| 71 |
$instance->collect_globals( $settings ); |
| 72 |
|
| 73 |
// 1. Replace CSS color variables in the serialized content |
| 74 |
$block_content = $instance->replace_colors( $block_content ); |
| 75 |
|
| 76 |
// 2. Resolve global font sources in block attrs |
| 77 |
if ( function_exists( 'parse_blocks' ) && function_exists( 'serialize_blocks' ) ) { |
| 78 |
$blocks = parse_blocks( $block_content ); |
| 79 |
$instance->replace_fonts( $blocks ); |
| 80 |
$block_content = serialize_blocks( $blocks ); |
| 81 |
} |
| 82 |
|
| 83 |
return $block_content; |
| 84 |
} |
| 85 |
|
| 86 |
/** |
| 87 |
* Build $colors and $fonts from the settings array. |
| 88 |
*/ |
| 89 |
private function collect_globals( array $settings ): void { |
| 90 |
$color_keys = [ 'gradient_colors', 'custom_gradient_colors', 'custom_colors', 'global_colors' ]; |
| 91 |
|
| 92 |
foreach ( $color_keys as $key ) { |
| 93 |
if ( ! empty( $settings[ $key ] ) ) { |
| 94 |
$this->colors = array_merge( $this->colors, $settings[ $key ] ); |
| 95 |
} |
| 96 |
} |
| 97 |
|
| 98 |
if ( ! empty( $settings['global_typography'] ) ) { |
| 99 |
foreach ( $settings['global_typography'] as $k => $v ) { |
| 100 |
if ( $k === 'custom' ) { |
| 101 |
// Custom entries are keyed by their ID |
| 102 |
foreach ( $v as $k2 => $v2 ) { |
| 103 |
$this->fonts[ $k2 ] = $v2; |
| 104 |
} |
| 105 |
} else { |
| 106 |
$this->fonts[ $k ] = $v; |
| 107 |
} |
| 108 |
} |
| 109 |
} |
| 110 |
} |
| 111 |
|
| 112 |
/** |
| 113 |
* Replace CSS variable references (e.g. var(--eb-global-...)) with |
| 114 |
* their actual color values. |
| 115 |
*/ |
| 116 |
private function replace_colors( string $content ): string { |
| 117 |
foreach ( $this->colors as $color ) { |
| 118 |
if ( ! empty( $color['var'] ) && ! empty( $color['color'] ) ) { |
| 119 |
$content = str_replace( 'var(' . $color['var'] . ')', $color['color'], $content ); |
| 120 |
} |
| 121 |
} |
| 122 |
|
| 123 |
return $content; |
| 124 |
} |
| 125 |
|
| 126 |
/** |
| 127 |
* Walk parsed blocks recursively and resolve global font sources. |
| 128 |
*/ |
| 129 |
private function replace_fonts( array &$blocks ): void { |
| 130 |
foreach ( $blocks as &$block ) { |
| 131 |
if ( ! empty( $block['attrs'] ) ) { |
| 132 |
foreach ( $block['attrs'] as $attr => $value ) { |
| 133 |
if ( $this->has_global_fonts( $attr, $value ) ) { |
| 134 |
$font_id = str_replace( 'global:', '', $block['attrs'][ $attr ] ); |
| 135 |
$tag_name = $block['attrs']['tagName'] ?? ''; |
| 136 |
$block['attrs'] = array_merge( |
| 137 |
$block['attrs'], |
| 138 |
$this->prepare_font_attrs( $font_id, $attr, $tag_name ) |
| 139 |
); |
| 140 |
$block['attrs'][ $attr ] = 'custom'; |
| 141 |
} |
| 142 |
} |
| 143 |
} |
| 144 |
|
| 145 |
if ( ! empty( $block['innerBlocks'] ) ) { |
| 146 |
$this->replace_fonts( $block['innerBlocks'] ); |
| 147 |
} |
| 148 |
} |
| 149 |
} |
| 150 |
|
| 151 |
/** |
| 152 |
* Determine if an attribute is a global font source reference. |
| 153 |
*/ |
| 154 |
private function has_global_fonts( string $attr, $value ): bool { |
| 155 |
return str_contains( $attr, 'FontSource' ) && is_string( $value ) && str_contains( $value, 'global:' ); |
| 156 |
} |
| 157 |
|
| 158 |
/** |
| 159 |
* Build the concrete font attribute array for a given global font ID. |
| 160 |
*/ |
| 161 |
private function prepare_font_attrs( string $font_id, string $attr, string $tag_name ): array { |
| 162 |
$styles = []; |
| 163 |
$prefix = str_replace( 'FontSource', '', $attr ); |
| 164 |
|
| 165 |
if ( $font_id === 'global' ) { |
| 166 |
if ( ! empty( $tag_name ) && isset( $this->fonts[ $tag_name ] ) ) { |
| 167 |
$styles = $this->fonts[ $tag_name ]; |
| 168 |
// If the font family is "Default", fall back to allHeadings |
| 169 |
if ( isset( $styles['fontFamily'] ) && trim( strtolower( $styles['fontFamily'] ) ) === 'default' ) { |
| 170 |
$styles['fontFamily'] = $this->fonts['allHeadings']['fontFamily'] ?? $styles['fontFamily']; |
| 171 |
} |
| 172 |
} elseif ( isset( $this->fonts['body'] ) ) { |
| 173 |
$styles = $this->fonts['body']; |
| 174 |
} |
| 175 |
} elseif ( isset( $this->fonts[ $font_id ] ) ) { |
| 176 |
$styles = $this->fonts[ $font_id ]; |
| 177 |
} |
| 178 |
|
| 179 |
if ( empty( $styles ) ) { |
| 180 |
return []; |
| 181 |
} |
| 182 |
|
| 183 |
$prepared = []; |
| 184 |
|
| 185 |
foreach ( $this->font_attrs as $font_attr ) { |
| 186 |
if ( ! empty( $styles[ $font_attr ] ) ) { |
| 187 |
$prepared[ $prefix . ucfirst( $font_attr ) ] = $styles[ $font_attr ]; |
| 188 |
} |
| 189 |
} |
| 190 |
|
| 191 |
foreach ( $this->responsive_font_attrs as $font_attr ) { |
| 192 |
if ( ! empty( $styles[ 'TAB' . $font_attr ] ) ) { |
| 193 |
$prepared[ 'TAB' . $prefix . ucfirst( $font_attr ) ] = $styles[ 'TAB' . $font_attr ]; |
| 194 |
} |
| 195 |
if ( ! empty( $styles[ 'MOB' . $font_attr ] ) ) { |
| 196 |
$prepared[ 'MOB' . $prefix . ucfirst( $font_attr ) ] = $styles[ 'MOB' . $font_attr ]; |
| 197 |
} |
| 198 |
} |
| 199 |
|
| 200 |
return $prepared; |
| 201 |
} |
| 202 |
} |
| 203 |
|
