--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/block-supports/typography.php Wed Sep 21 18:19:35 2022 +0200
@@ -0,0 +1,212 @@
+<?php
+/**
+ * Typography block support flag.
+ *
+ * @package WordPress
+ * @since 5.6.0
+ */
+
+/**
+ * Registers the style and typography block attributes for block types that support it.
+ *
+ * @since 5.6.0
+ * @access private
+ *
+ * @param WP_Block_Type $block_type Block Type.
+ */
+function wp_register_typography_support( $block_type ) {
+ if ( ! property_exists( $block_type, 'supports' ) ) {
+ return;
+ }
+
+ $typography_supports = _wp_array_get( $block_type->supports, array( 'typography' ), false );
+ if ( ! $typography_supports ) {
+ return;
+ }
+
+ $has_font_family_support = _wp_array_get( $typography_supports, array( '__experimentalFontFamily' ), false );
+ $has_font_size_support = _wp_array_get( $typography_supports, array( 'fontSize' ), false );
+ $has_font_style_support = _wp_array_get( $typography_supports, array( '__experimentalFontStyle' ), false );
+ $has_font_weight_support = _wp_array_get( $typography_supports, array( '__experimentalFontWeight' ), false );
+ $has_line_height_support = _wp_array_get( $typography_supports, array( 'lineHeight' ), false );
+ $has_text_decoration_support = _wp_array_get( $typography_supports, array( '__experimentalTextDecoration' ), false );
+ $has_text_transform_support = _wp_array_get( $typography_supports, array( '__experimentalTextTransform' ), false );
+
+ $has_typography_support = $has_font_family_support
+ || $has_font_size_support
+ || $has_font_style_support
+ || $has_font_weight_support
+ || $has_line_height_support
+ || $has_text_decoration_support
+ || $has_text_transform_support;
+
+ if ( ! $block_type->attributes ) {
+ $block_type->attributes = array();
+ }
+
+ if ( $has_typography_support && ! array_key_exists( 'style', $block_type->attributes ) ) {
+ $block_type->attributes['style'] = array(
+ 'type' => 'object',
+ );
+ }
+
+ if ( $has_font_size_support && ! array_key_exists( 'fontSize', $block_type->attributes ) ) {
+ $block_type->attributes['fontSize'] = array(
+ 'type' => 'string',
+ );
+ }
+}
+
+/**
+ * Add CSS classes and inline styles for typography features such as font sizes
+ * to the incoming attributes array. This will be applied to the block markup in
+ * the front-end.
+ *
+ * @since 5.6.0
+ * @access private
+ *
+ * @param WP_Block_Type $block_type Block type.
+ * @param array $block_attributes Block attributes.
+ *
+ * @return array Typography CSS classes and inline styles.
+ */
+function wp_apply_typography_support( $block_type, $block_attributes ) {
+ if ( ! property_exists( $block_type, 'supports' ) ) {
+ return array();
+ }
+
+ $typography_supports = _wp_array_get( $block_type->supports, array( 'typography' ), false );
+ if ( ! $typography_supports ) {
+ return array();
+ }
+
+ $skip_typography_serialization = _wp_array_get( $typography_supports, array( '__experimentalSkipSerialization' ), false );
+ if ( $skip_typography_serialization ) {
+ return array();
+ }
+
+ $attributes = array();
+ $classes = array();
+ $styles = array();
+
+ $has_font_family_support = _wp_array_get( $typography_supports, array( '__experimentalFontFamily' ), false );
+ $has_font_size_support = _wp_array_get( $typography_supports, array( 'fontSize' ), false );
+ $has_font_style_support = _wp_array_get( $typography_supports, array( '__experimentalFontStyle' ), false );
+ $has_font_weight_support = _wp_array_get( $typography_supports, array( '__experimentalFontWeight' ), false );
+ $has_line_height_support = _wp_array_get( $typography_supports, array( 'lineHeight' ), false );
+ $has_text_decoration_support = _wp_array_get( $typography_supports, array( '__experimentalTextDecoration' ), false );
+ $has_text_transform_support = _wp_array_get( $typography_supports, array( '__experimentalTextTransform' ), false );
+
+ if ( $has_font_size_support ) {
+ $has_named_font_size = array_key_exists( 'fontSize', $block_attributes );
+ $has_custom_font_size = isset( $block_attributes['style']['typography']['fontSize'] );
+
+ if ( $has_named_font_size ) {
+ $classes[] = sprintf( 'has-%s-font-size', $block_attributes['fontSize'] );
+ } elseif ( $has_custom_font_size ) {
+ $styles[] = sprintf( 'font-size: %s;', $block_attributes['style']['typography']['fontSize'] );
+ }
+ }
+
+ if ( $has_font_family_support ) {
+ $has_font_family = isset( $block_attributes['style']['typography']['fontFamily'] );
+ if ( $has_font_family ) {
+ $font_family = $block_attributes['style']['typography']['fontFamily'];
+ if ( strpos( $font_family, 'var:preset|font-family' ) !== false ) {
+ // Get the name from the string and add proper styles.
+ $index_to_splice = strrpos( $font_family, '|' ) + 1;
+ $font_family_name = substr( $font_family, $index_to_splice );
+ $styles[] = sprintf( 'font-family: var(--wp--preset--font-family--%s);', $font_family_name );
+ } else {
+ $styles[] = sprintf( 'font-family: %s;', $block_attributes['style']['typography']['fontFamily'] );
+ }
+ }
+ }
+
+ if ( $has_font_style_support ) {
+ $font_style = wp_typography_get_css_variable_inline_style( $block_attributes, 'fontStyle', 'font-style' );
+ if ( $font_style ) {
+ $styles[] = $font_style;
+ }
+ }
+
+ if ( $has_font_weight_support ) {
+ $font_weight = wp_typography_get_css_variable_inline_style( $block_attributes, 'fontWeight', 'font-weight' );
+ if ( $font_weight ) {
+ $styles[] = $font_weight;
+ }
+ }
+
+ if ( $has_line_height_support ) {
+ $has_line_height = isset( $block_attributes['style']['typography']['lineHeight'] );
+ if ( $has_line_height ) {
+ $styles[] = sprintf( 'line-height: %s;', $block_attributes['style']['typography']['lineHeight'] );
+ }
+ }
+
+ if ( $has_text_decoration_support ) {
+ $text_decoration_style = wp_typography_get_css_variable_inline_style( $block_attributes, 'textDecoration', 'text-decoration' );
+ if ( $text_decoration_style ) {
+ $styles[] = $text_decoration_style;
+ }
+ }
+
+ if ( $has_text_transform_support ) {
+ $text_transform_style = wp_typography_get_css_variable_inline_style( $block_attributes, 'textTransform', 'text-transform' );
+ if ( $text_transform_style ) {
+ $styles[] = $text_transform_style;
+ }
+ }
+
+ if ( ! empty( $classes ) ) {
+ $attributes['class'] = implode( ' ', $classes );
+ }
+ if ( ! empty( $styles ) ) {
+ $attributes['style'] = implode( ' ', $styles );
+ }
+
+ return $attributes;
+}
+
+/**
+ * Generates an inline style for a typography feature e.g. text decoration,
+ * text transform, and font style.
+ *
+ * @since 5.8.0
+ * @access private
+ *
+ * @param array $attributes Block's attributes.
+ * @param string $feature Key for the feature within the typography styles.
+ * @param string $css_property Slug for the CSS property the inline style sets.
+ *
+ * @return string CSS inline style.
+ */
+function wp_typography_get_css_variable_inline_style( $attributes, $feature, $css_property ) {
+ // Retrieve current attribute value or skip if not found.
+ $style_value = _wp_array_get( $attributes, array( 'style', 'typography', $feature ), false );
+ if ( ! $style_value ) {
+ return;
+ }
+
+ // If we don't have a preset CSS variable, we'll assume it's a regular CSS value.
+ if ( strpos( $style_value, "var:preset|{$css_property}|" ) === false ) {
+ return sprintf( '%s:%s;', $css_property, $style_value );
+ }
+
+ // We have a preset CSS variable as the style.
+ // Get the style value from the string and return CSS style.
+ $index_to_splice = strrpos( $style_value, '|' ) + 1;
+ $slug = substr( $style_value, $index_to_splice );
+
+ // Return the actual CSS inline style e.g. `text-decoration:var(--wp--preset--text-decoration--underline);`.
+ return sprintf( '%s:var(--wp--preset--%s--%s);', $css_property, $css_property, $slug );
+}
+
+// Register the block support.
+WP_Block_Supports::get_instance()->register(
+ 'typography',
+ array(
+ 'register_attribute' => 'wp_register_typography_support',
+ 'apply' => 'wp_apply_typography_support',
+ )
+);