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Automatically generate required preset classes #25768

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merged 2 commits into from
Oct 12, 2020
Merged

Automatically generate required preset classes #25768

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f0829fd
Automatically generate required preset classes
jorgefilipecosta Oct 1, 2020
e8c9af4
Update lib/global-styles.php
jorgefilipecosta Oct 7, 2020
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76 changes: 73 additions & 3 deletions lib/global-styles.php
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Original file line number Diff line number Diff line change
Expand Up @@ -500,9 +500,6 @@ function gutenberg_experimental_global_styles_get_block_data() {
}

$supports = gutenberg_experimental_global_styles_get_supported_styles( $block_type->supports );
if ( empty( $supports ) ) {
continue;
}

/*
* Assign the selector for the block.
Expand Down Expand Up @@ -577,6 +574,77 @@ function gutenberg_experimental_global_styles_flatten_styles_tree( $styles ) {

}

/**
* Given a selector for a block, and the settings of the block, returns a string
* with the stylesheet of the preset classes required for that block.
*
* @param string $selector String with the CSS selector for the block.
* @param array $settings Array containing the settings of the block.
*
* @return string Stylesheet with the preset classes.
*/
function gutenberg_experimental_global_styles_get_preset_classes( $selector, $settings ) {
if ( empty( $settings ) || empty( $selector ) ) {
return '';
}

$stylesheet = '';
$class_prefix = 'has';
$classes_structure = array(
'color' => array(
'path' => array( 'color', 'palette' ),
'key' => 'color',
'property' => 'color',
),
'background-color' => array(
'path' => array( 'color', 'palette' ),
'key' => 'color',
'property' => 'background-color',
),
'gradient-background' => array(
'path' => array( 'color', 'gradients' ),
'key' => 'gradient',
'property' => 'background',
),
'font-size' => array(
'path' => array( 'typography', 'fontSizes' ),
'key' => 'size',
'property' => 'font-size',
),
);

foreach ( $classes_structure as $class_suffix => $preset_structure ) {
$path = $preset_structure['path'];
$presets = gutenberg_experimental_get( $settings, $path );

if ( empty( $presets ) ) {
continue;
}

$key = $preset_structure['key'];
$property = $preset_structure['property'];

foreach ( $presets as $preset ) {
$slug = $preset['slug'];
$value = $preset[ $key ];

$class_to_use = ".$class_prefix-$slug-$class_suffix";
$selector_to_use = '';
if ( ':root' === $selector ) {
$selector_to_use = $class_to_use;
} else {
$selector_to_use = "$selector$class_to_use";
}
if ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) {
$stylesheet .= "$selector_to_use {\n\t$property: $value;\n}\n";
} else {
$stylesheet .= $selector_to_use . '{' . "$property:$value;}\n";
}
}
}
return $stylesheet;
}

/**
* Takes a tree adhering to the theme.json schema and generates
* the corresponding stylesheet.
Expand Down Expand Up @@ -633,6 +701,8 @@ function gutenberg_experimental_global_styles_get_stylesheet( $tree ) {
$theme_variables
)
);

$stylesheet .= gutenberg_experimental_global_styles_get_preset_classes( $block_data[ $block_name ]['selector'], $tree[ $block_name ]['settings'] );
}

if ( gutenberg_experimental_global_styles_has_theme_json_support() ) {
Expand Down
3 changes: 2 additions & 1 deletion packages/block-library/src/button/block.json
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Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,7 @@
"anchor": true,
"align": true,
"alignWide": false,
"reusable": false
"reusable": false,
"__experimentalSelector": ".wp-block-button > a"
}
}
3 changes: 2 additions & 1 deletion packages/block-library/src/table/block.json
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Original file line number Diff line number Diff line change
Expand Up @@ -123,6 +123,7 @@
},
"supports": {
"anchor": true,
"align": true
"align": true,
"__experimentalSelector": ".wp-block-button > table"
}
}