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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 ( property_exists( $block_type, 'supports' ) ) { |
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$color_support = gutenberg_experimental_get( $block_type->supports, array( 'color' ), false ); |
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} |
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$has_text_colors_support = true === $color_support || ( is_array( $color_support ) && gutenberg_experimental_get( $color_support, array( 'text' ), true ) ); |
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$has_background_colors_support = true === $color_support || ( is_array( $color_support ) && gutenberg_experimental_get( $color_support, array( 'background' ), true ) ); |
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$has_gradients_support = gutenberg_experimental_get( $color_support, array( 'gradients' ), false ); |
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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_text_colors_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 = gutenberg_experimental_get( $block_type->supports, array( 'color' ), false ); |
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$has_text_colors_support = true === $color_support || ( is_array( $color_support ) && gutenberg_experimental_get( $color_support, array( 'text' ), true ) ); |
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$has_background_colors_support = true === $color_support || ( is_array( $color_support ) && gutenberg_experimental_get( $color_support, array( 'background' ), true ) ); |
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$has_link_colors_support = gutenberg_experimental_get( $color_support, array( 'link' ), false ); |
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$has_gradients_support = gutenberg_experimental_get( $color_support, array( 'gradients' ), false ); |
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$classes = array(); |
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$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 ( $has_text_colors_support ) { |
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$has_named_text_color = array_key_exists( 'textColor', $block_attributes ); |
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$has_custom_text_color = isset( $block_attributes['style']['color']['text'] ); |
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|
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// Apply required generic class. |
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if ( $has_custom_text_color || $has_named_text_color ) { |
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$classes[] = 'has-text-color'; |
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} |
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// Apply color class or inline style. |
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if ( $has_named_text_color ) { |
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$classes[] = sprintf( 'has-%s-color', $block_attributes['textColor'] ); |
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} elseif ( $has_custom_text_color ) { |
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$styles[] = sprintf( 'color: %s;', $block_attributes['style']['color']['text'] ); |
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} |
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} |
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|
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// Link Colors. |
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if ( $has_link_colors_support ) { |
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$has_link_color = isset( $block_attributes['style']['color']['link'] ); |
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// Apply required class and style. |
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if ( $has_link_color ) { |
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$classes[] = 'has-link-color'; |
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// If link is a named color. |
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if ( strpos( $block_attributes['style']['color']['link'], 'var:preset|color|' ) !== false ) { |
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// Get the name from the string and add proper styles. |
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$index_to_splice = strrpos( $block_attributes['style']['color']['link'], '|' ) + 1; |
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$link_color_name = substr( $block_attributes['style']['color']['link'], $index_to_splice ); |
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$styles[] = sprintf( '--wp--style--color--link: var(--wp--preset--color--%s);', $link_color_name ); |
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} else { |
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$styles[] = sprintf( '--wp--style--color--link: %s;', $block_attributes['style']['color']['link'] ); |
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} |
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} |
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} |
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|
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// Background Colors. |
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if ( $has_background_colors_support ) { |
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$has_named_background_color = array_key_exists( 'backgroundColor', $block_attributes ); |
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$has_custom_background_color = isset( $block_attributes['style']['color']['background'] ); |
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|
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// Apply required background class. |
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if ( $has_custom_background_color || $has_named_background_color ) { |
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$classes[] = 'has-background'; |
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} |
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// Apply background color classes or styles. |
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if ( $has_named_background_color ) { |
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$classes[] = sprintf( 'has-%s-background-color', $block_attributes['backgroundColor'] ); |
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} elseif ( $has_custom_background_color ) { |
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$styles[] = sprintf( 'background-color: %s;', $block_attributes['style']['color']['background'] ); |
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} |
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} |
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|
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// Gradients. |
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if ( $has_gradients_support ) { |
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$has_named_gradient = array_key_exists( 'gradient', $block_attributes ); |
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$has_custom_gradient = isset( $block_attributes['style']['color']['gradient'] ); |
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|
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if ( $has_named_gradient || $has_custom_gradient ) { |
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$classes[] = 'has-background'; |
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} |
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// Apply required background class. |
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if ( $has_named_gradient ) { |
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$classes[] = sprintf( 'has-%s-gradient-background', $block_attributes['gradient'] ); |
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} elseif ( $has_custom_gradient ) { |
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$styles[] = sprintf( 'background: %s;', $block_attributes['style']['color']['gradient'] ); |
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} |
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} |
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|
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$attributes = array(); |
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if ( ! empty( $classes ) ) { |
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$attributes['class'] = implode( ' ', $classes ); |
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} |
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if ( ! empty( $styles ) ) { |
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$attributes['style'] = implode( ' ', $styles ); |
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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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|
