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Edit File: colors.php

<?php /** * Colors block support flag. * * @package WordPress * @since 5.6.0 */ /** * Registers the style and colors block attributes for block types that support it. * * @since 5.6.0 * @since 6.1.0 Improved $color_support assignment optimization. * @access private * * @param WP_Block_Type $block_type Block Type. */ function wp_register_colors_support( $block_type ) { $color_support = false; if ( $block_type instanceof WP_Block_Type ) { $color_support = $block_type->supports['color'] ?? false; } $has_text_colors_support = true === $color_support || ( isset( $color_support['text'] ) && $color_support['text'] ) || ( is_array( $color_support ) && ! isset( $color_support['text'] ) ); $has_background_colors_support = true === $color_support || ( isset( $color_support['background'] ) && $color_support['background'] ) || ( is_array( $color_support ) && ! isset( $color_support['background'] ) ); $has_gradients_support = $color_support['gradients'] ?? false; $has_link_colors_support = $color_support['link'] ?? false; $has_button_colors_support = $color_support['button'] ?? false; $has_heading_colors_support = $color_support['heading'] ?? false; $has_color_support = $has_text_colors_support || $has_background_colors_support || $has_gradients_support || $has_link_colors_support || $has_button_colors_support || $has_heading_colors_support; if ( ! $block_type->attributes ) { $block_type->attributes = array(); } if ( $has_color_support && ! array_key_exists( 'style', $block_type->attributes ) ) { $block_type->attributes['style'] = array( 'type' => 'object', ); } if ( $has_background_colors_support && ! array_key_exists( 'backgroundColor', $block_type->attributes ) ) { $block_type->attributes['backgroundColor'] = array( 'type' => 'string', ); } if ( $has_text_colors_support && ! array_key_exists( 'textColor', $block_type->attributes ) ) { $block_type->attributes['textColor'] = array( 'type' => 'string', ); } if ( $has_gradients_support && ! array_key_exists( 'gradient', $block_type->attributes ) ) { $block_type->attributes['gradient'] = array( 'type' => 'string', ); } } /** * Adds CSS classes and inline styles for colors to the incoming attributes array. * This will be applied to the block markup in the front-end. * * @since 5.6.0 * @since 6.1.0 Implemented the style engine to generate CSS and classnames. * @since 7.1.0 Suppresses color.gradient when background.gradient is supported and set. * @access private * * @param WP_Block_Type $block_type Block type. * @param array $block_attributes Block attributes. * * @return array Colors CSS classes and inline styles. */ function wp_apply_colors_support( $block_type, $block_attributes ) { $color_support = $block_type->supports['color'] ?? false; if ( is_array( $color_support ) && wp_should_skip_block_supports_serialization( $block_type, 'color' ) ) { return array(); } $has_text_colors_support = true === $color_support || ( isset( $color_support['text'] ) && $color_support['text'] ) || ( is_array( $color_support ) && ! isset( $color_support['text'] ) ); $has_background_colors_support = true === $color_support || ( isset( $color_support['background'] ) && $color_support['background'] ) || ( is_array( $color_support ) && ! isset( $color_support['background'] ) ); $has_gradients_support = $color_support['gradients'] ?? false; $color_block_styles = array(); // Text colors. if ( $has_text_colors_support && ! wp_should_skip_block_supports_serialization( $block_type, 'color', 'text' ) ) { $preset_text_color = array_key_exists( 'textColor', $block_attributes ) ? "var:preset|color|{$block_attributes['textColor']}" : null; $custom_text_color = $block_attributes['style']['color']['text'] ?? null; $color_block_styles['text'] = $preset_text_color ? $preset_text_color : $custom_text_color; } // Background colors. if ( $has_background_colors_support && ! wp_should_skip_block_supports_serialization( $block_type, 'color', 'background' ) ) { $preset_background_color = array_key_exists( 'backgroundColor', $block_attributes ) ? "var:preset|color|{$block_attributes['backgroundColor']}" : null; $custom_background_color = $block_attributes['style']['color']['background'] ?? null; $color_block_styles['background'] = $preset_background_color ? $preset_background_color : $custom_background_color; } // Gradients. // Suppress color.gradient CSS when background.gradient is supported and // explicitly set. background.php owns CSS generation in that case, and // emitting the background shorthand here would conflict with it. $has_background_gradient_support = block_has_support( $block_type, array( 'background', 'gradient' ), false ); $has_background_gradient_value = ! empty( $block_attributes['style']['background']['gradient'] ); if ( $has_gradients_support && ! wp_should_skip_block_supports_serialization( $block_type, 'color', 'gradients' ) && ! ( $has_background_gradient_support && $has_background_gradient_value ) ) { $preset_gradient_color = array_key_exists( 'gradient', $block_attributes ) ? "var:preset|gradient|{$block_attributes['gradient']}" : null; $custom_gradient_color = $block_attributes['style']['color']['gradient'] ?? null; $color_block_styles['gradient'] = $preset_gradient_color ? $preset_gradient_color : $custom_gradient_color; } $attributes = array(); $styles = wp_style_engine_get_styles( array( 'color' => $color_block_styles ), array( 'convert_vars_to_classnames' => true ) ); if ( ! empty( $styles['classnames'] ) ) { $attributes['class'] = $styles['classnames']; } if ( ! empty( $styles['css'] ) ) { $attributes['style'] = $styles['css']; } return $attributes; } // Register the block support. WP_Block_Supports::get_instance()->register( 'colors', array( 'register_attribute' => 'wp_register_colors_support', 'apply' => 'wp_apply_colors_support', ) );
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