diff options
Diffstat (limited to 'wp-includes/block-supports/colors.php')
| -rw-r--r-- | wp-includes/block-supports/colors.php | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/wp-includes/block-supports/colors.php b/wp-includes/block-supports/colors.php new file mode 100644 index 0000000..f14b718 --- /dev/null +++ b/wp-includes/block-supports/colors.php @@ -0,0 +1,144 @@ +<?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 = isset( $block_type->supports['color'] ) ? $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 = isset( $color_support['gradients'] ) ? $color_support['gradients'] : false; + $has_link_colors_support = isset( $color_support['link'] ) ? $color_support['link'] : false; + $has_button_colors_support = isset( $color_support['button'] ) ? $color_support['button'] : false; + $has_heading_colors_support = isset( $color_support['heading'] ) ? $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. + * @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 = isset( $block_type->supports['color'] ) ? $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 = isset( $color_support['gradients'] ) ? $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 = isset( $block_attributes['style']['color']['text'] ) ? $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 = isset( $block_attributes['style']['color']['background'] ) ? $block_attributes['style']['color']['background'] : null; + $color_block_styles['background'] = $preset_background_color ? $preset_background_color : $custom_background_color; + } + + // Gradients. + if ( $has_gradients_support && ! wp_should_skip_block_supports_serialization( $block_type, 'color', 'gradients' ) ) { + $preset_gradient_color = array_key_exists( 'gradient', $block_attributes ) ? "var:preset|gradient|{$block_attributes['gradient']}" : null; + $custom_gradient_color = isset( $block_attributes['style']['color']['gradient'] ) ? $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', + ) +); |