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Block Style Variations: Fix complex variation selectors when using selectors API #67061

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Nov 20, 2024
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Block Style Variations: Fix complex variation selectors when using selectors API #67061

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f3b3fff
Add unit test to cover selector issue
aaronrobertshaw Nov 18, 2024
7b2d197
Fix variation selectors using selectors API
aaronrobertshaw Nov 18, 2024
9d0147e
Add backport log
aaronrobertshaw Nov 19, 2024
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3 changes: 3 additions & 0 deletions backport-changelog/6.8/7825.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
https://github.com/WordPress/wordpress-develop/pull/7825

* https://github.com/WordPress/gutenberg/pull/67061
10 changes: 8 additions & 2 deletions lib/class-wp-theme-json-gutenberg.php
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Original file line number Diff line number Diff line change
Expand Up @@ -2874,8 +2874,14 @@ public function get_styles_for_block( $block_metadata ) {

// Combine selectors with style variation's selector and add to overall style variation declarations.
foreach ( $variation_declarations as $current_selector => $new_declarations ) {
// If current selector includes block classname, remove it but leave the whitespace in.
$shortened_selector = str_replace( $block_metadata['selector'] . ' ', ' ', $current_selector );
/*
* Clean up any whitespace between comma separated selectors.
* This prevents these spaces breaking compound selectors such as:
* - `.wp-block-list:not(.wp-block-list .wp-block-list)`
* - `.wp-block-image img, .wp-block-image.my-class img`
*/
$clean_current_selector = preg_replace( '/,\s+/', ',', $current_selector );
$shortened_selector = str_replace( $block_metadata['selector'], '', $clean_current_selector );

// Prepend the variation selector to the current selector.
$split_selectors = explode( ',', $shortened_selector );
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68 changes: 68 additions & 0 deletions phpunit/class-wp-theme-json-test.php
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Expand Up @@ -4308,6 +4308,74 @@ public function data_get_styles_for_block_with_style_variations() {
);
}

public function test_get_styles_for_block_with_style_variations_and_custom_selectors() {
register_block_type(
'test/milk',
array(
'api_version' => 3,
'selectors' => array(
'root' => '.milk',
'color' => '.wp-block-test-milk .liquid, .wp-block-test-milk:not(.spoiled), .wp-block-test-milk.in-bottle',
),
)
);

register_block_style(
'test/milk',
array(
'name' => 'chocolate',
'label' => 'Chocolate',
)
);

$theme_json = new WP_Theme_JSON_Gutenberg(
array(
'version' => WP_Theme_JSON_Gutenberg::LATEST_SCHEMA,
'styles' => array(
'blocks' => array(
'test/milk' => array(
'color' => array(
'background' => 'white',
),
'variations' => array(
'chocolate' => array(
'color' => array(
'background' => '#35281E',
),
),
),
),
),
),
)
);

$metadata = array(
'name' => 'test/milk',
'path' => array( 'styles', 'blocks', 'test/milk' ),
'selector' => '.wp-block-test-milk',
'selectors' => array(
'color' => '.wp-block-test-milk .liquid, .wp-block-test-milk:not(.spoiled), .wp-block-test-milk.in-bottle',
),
'variations' => array(
'chocolate' => array(
'path' => array( 'styles', 'blocks', 'test/milk', 'variations', 'chocolate' ),
'selector' => '.is-style-chocolate.wp-block-test-milk',
),
),
);

$actual_styles = $theme_json->get_styles_for_block( $metadata );
$default_styles = ':root :where(.wp-block-test-milk .liquid, .wp-block-test-milk:not(.spoiled), .wp-block-test-milk.in-bottle){background-color: white;}';
$variation_styles = ':root :where(.is-style-chocolate.wp-block-test-milk .liquid,.is-style-chocolate.wp-block-test-milk:not(.spoiled),.is-style-chocolate.wp-block-test-milk.in-bottle){background-color: #35281E;}';
$expected = $default_styles . $variation_styles;

unregister_block_style( 'test/milk', 'chocolate' );
unregister_block_type( 'test/milk' );

$this->assertSame( $expected, $actual_styles );
}

public function test_block_style_variations() {
wp_set_current_user( static::$administrator_id );

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