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