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Global Styles: Add CSS vars for root level settings #29714

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Global Styles: Add CSS vars for root level settings #29714

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b6997f4
Global Styles: Add CSS vars for root level settings
scruffian Mar 10, 2021
d10d6d8
Remove calendar styles
scruffian Apr 30, 2021
a5bf5cc
Check that styles is defined
scruffian Apr 30, 2021
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28 changes: 28 additions & 0 deletions lib/class-wp-theme-json.php
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Original file line number Diff line number Diff line change
Expand Up @@ -693,6 +693,30 @@ private static function compute_preset_vars( $declarations, $settings ) {
return $declarations;
}

/**
* Takes the root level settings from theme JSON and creates variables for them.
*
* @param array $declarations Holds the existing declarations.
* @param array $settings Settings to process.
*
* @return array Returns the modified $declarations.
*/
private static function compute_root_vars( $declarations, $settings ) {
if ( empty( $settings['styles'] ) ) {
return;
}

$root_values = gutenberg_experimental_get( $settings, array( 'root' ) );
$css_vars = self::flatten_tree( $root_values );
foreach ( $css_vars as $key => $value ) {
$declarations[] = array(
'name' => '--wp--style--' . $key,
'value' => $value,
);
}
return $declarations;
}

/**
* Given an array of settings, it extracts the CSS Custom Properties
* for the custom values and adds them to the $declarations
Expand Down Expand Up @@ -797,6 +821,10 @@ private function get_css_variables( $nodes ) {
$stylesheet .= self::to_ruleset( $selector, $declarations );
}

// Create variables for root level settings
$declarations = self::compute_root_vars( array(), $this->theme_json );
$stylesheet .= self::to_ruleset( ':root', $declarations );

return $stylesheet;
}

Expand Down