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Revert "Revert "Block Settings/Support: Use Tag Processor to inject class name on wrapper."" #47552

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merged 1 commit into from
Jan 30, 2023
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Revert "Revert "Block Settings/Support: Use Tag Processor to inject class name on wrapper."" #47552

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25 changes: 5 additions & 20 deletions lib/block-supports/elements.php
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Original file line number Diff line number Diff line change
Expand Up @@ -49,29 +49,14 @@ function gutenberg_render_elements_support( $block_content, $block ) {
return $block_content;
}

$class_name = gutenberg_get_elements_class_name( $block );

// Like the layout hook this assumes the hook only applies to blocks with a single wrapper.
// Retrieve the opening tag of the first HTML element.
$html_element_matches = array();
preg_match( '/<[^>]+>/', $block_content, $html_element_matches, PREG_OFFSET_CAPTURE );
$first_element = $html_element_matches[0][0];
// If the first HTML element has a class attribute just add the new class
// as we do on layout and duotone.
if ( str_contains( $first_element, 'class="' ) ) {
$content = preg_replace(
'/' . preg_quote( 'class="', '/' ) . '/',
'class="' . $class_name . ' ',
$block_content,
1
);
} else {
// If the first HTML element has no class attribute we should inject the attribute before the attribute at the end.
$first_element_offset = $html_element_matches[0][1];
$content = substr_replace( $block_content, ' class="' . $class_name . '"', $first_element_offset + strlen( $first_element ) - 1, 0 );
// Add the class name to the first element, presuming it's the wrapper, if it exists.
$tags = new WP_HTML_Tag_Processor( $block_content );
if ( $tags->next_tag() ) {
$tags->add_class( gutenberg_get_elements_class_name( $block ) );
}

return $content;
return $tags->get_updated_html();
}

/**
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25 changes: 5 additions & 20 deletions lib/block-supports/settings.php
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Original file line number Diff line number Diff line change
Expand Up @@ -43,29 +43,14 @@ function _gutenberg_add_block_level_presets_class( $block_content, $block ) {
return $block_content;
}

$class_name = _gutenberg_get_presets_class_name( $block );

// Like the layout hook this assumes the hook only applies to blocks with a single wrapper.
// Retrieve the opening tag of the first HTML element.
$html_element_matches = array();
preg_match( '/<[^>]+>/', $block_content, $html_element_matches, PREG_OFFSET_CAPTURE );
$first_element = $html_element_matches[0][0];
// If the first HTML element has a class attribute just add the new class
// as we do on layout and duotone.
if ( strpos( $first_element, 'class="' ) !== false ) {
$content = preg_replace(
'/' . preg_quote( 'class="', '/' ) . '/',
'class="' . $class_name . ' ',
$block_content,
1
);
} else {
// If the first HTML element has no class attribute we should inject the attribute before the attribute at the end.
$first_element_offset = $html_element_matches[0][1];
$content = substr_replace( $block_content, ' class="' . $class_name . '"', $first_element_offset + strlen( $first_element ) - 1, 0 );
// Add the class name to the first element, presuming it's the wrapper, if it exists.
$tags = new WP_HTML_Tag_Processor( $block_content );
if ( $tags->next_tag() ) {
$tags->add_class( _gutenberg_get_presets_class_name( $block ) );
}

return $content;
return $tags->get_updated_html();
}

/**
Expand Down