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Theme JSON: remove unused vars in layout class #59938

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merged 2 commits into from
Mar 18, 2024
Merged

Theme JSON: remove unused vars in layout class #59938

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91ec616
$block_gap_value is immediately overwritten in the if block
ramonjd Mar 18, 2024
80dabe7
Update comment on isset if condition about blockGap
ramonjd Mar 18, 2024
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6 changes: 2 additions & 4 deletions lib/class-wp-theme-json-gutenberg.php
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Original file line number Diff line number Diff line change
Expand Up @@ -2728,10 +2728,8 @@ public function get_root_layout_rules( $selector, $block_metadata ) {
$css .= '.wp-site-blocks > .alignleft { float: left; margin-right: 2em; }';
$css .= '.wp-site-blocks > .alignright { float: right; margin-left: 2em; }';
$css .= '.wp-site-blocks > .aligncenter { justify-content: center; margin-left: auto; margin-right: auto; }';

$block_gap_value = $this->theme_json['styles']['spacing']['blockGap'] ?? '0.5em';
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I'm still seeing a fallback in the JS

https://github.com/WordPress/gutenberg/blob/trunk/packages/block-editor/src/components/global-styles/use-global-styles-output.js#L479-480

Should the fallback of '0.5em' be used in the if statement if static::get_property_value returns empty?

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Good question! A couple of considerations:

  • Core's lib/theme.json includes a styles.spacing.blockGap value of 24px, so in practice, was the 0.5em value ever being output? I'm curious if the 0.5em default spacing was ever being displayed visually for anyone 🤔
  • I think the 0.5em fallback was originally intended for flex layouts so that on classic themes where there might not be any blockGap value, things like Buttons spacing would still get a visually pleasing default value. In the case of root layout rules, that might not be necessary?

$has_block_gap_support = isset( $this->theme_json['settings']['spacing']['blockGap'] );
if ( $has_block_gap_support ) {
// Block gap styles will be output unless explicitly set to `null`. See static::PROTECTED_PROPERTIES.
if ( isset( $this->theme_json['settings']['spacing']['blockGap'] ) ) {
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$block_gap_value = static::get_property_value( $this->theme_json, array( 'styles', 'spacing', 'blockGap' ) );
$css .= ":where(.wp-site-blocks) > * { margin-block-start: $block_gap_value; margin-block-end: 0; }";
$css .= ':where(.wp-site-blocks) > :first-child:first-child { margin-block-start: 0; }';
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