?<h3>D¨ızenle: border.php</h3>
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/**
 * Border block support flag.
 *
 * @package WordPress
 * @since 5.8.0
 */

/**
 * Registers the style attribute used by the border feature if needed for block
 * types that support borders.
 *
 * @since 5.8.0
 * @since 6.1.0 Improved conditional blocks optimization.
 * @access private
 *
 * @param WP_Block_Type $block_type Block Type.
 */
function wp_register_border_support( $block_type ) {
	// Setup attributes and styles within that if needed.
	if ( ! $block_type-&gt;attributes ) {
		$block_type-&gt;attributes = array();
	}

	if ( block_has_support( $block_type, &#039;__experimentalBorder&#039; ) &amp;&amp; ! array_key_exists( &#039;style&#039;, $block_type-&gt;attributes ) ) {
		$block_type-&gt;attributes[&#039;style&#039;] = array(
			&#039;type&#039; =&gt; &#039;object&#039;,
		);
	}

	if ( wp_has_border_feature_support( $block_type, &#039;color&#039; ) &amp;&amp; ! array_key_exists( &#039;borderColor&#039;, $block_type-&gt;attributes ) ) {
		$block_type-&gt;attributes[&#039;borderColor&#039;] = array(
			&#039;type&#039; =&gt; &#039;string&#039;,
		);
	}
}

/**
 * Adds CSS classes and inline styles for border styles to the incoming
 * attributes array. This will be applied to the block markup in the front-end.
 *
 * @since 5.8.0
 * @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 Border CSS classes and inline styles.
 */
function wp_apply_border_support( $block_type, $block_attributes ) {
	if ( wp_should_skip_block_supports_serialization( $block_type, &#039;border&#039; ) ) {
		return array();
	}

	$border_block_styles      = array();
	$has_border_color_support = wp_has_border_feature_support( $block_type, &#039;color&#039; );
	$has_border_width_support = wp_has_border_feature_support( $block_type, &#039;width&#039; );

	// Border radius.
	if (
		wp_has_border_feature_support( $block_type, &#039;radius&#039; ) &amp;&amp;
		isset( $block_attributes[&#039;style&#039;][&#039;border&#039;][&#039;radius&#039;] ) &amp;&amp;
		! wp_should_skip_block_supports_serialization( $block_type, &#039;__experimentalBorder&#039;, &#039;radius&#039; )
	) {
		$border_radius = $block_attributes[&#039;style&#039;][&#039;border&#039;][&#039;radius&#039;];

		if ( is_numeric( $border_radius ) ) {
			$border_radius .= &#039;px&#039;;
		}

		$border_block_styles[&#039;radius&#039;] = $border_radius;
	}

	// Border style.
	if (
		wp_has_border_feature_support( $block_type, &#039;style&#039; ) &amp;&amp;
		isset( $block_attributes[&#039;style&#039;][&#039;border&#039;][&#039;style&#039;] ) &amp;&amp;
		! wp_should_skip_block_supports_serialization( $block_type, &#039;__experimentalBorder&#039;, &#039;style&#039; )
	) {
		$border_block_styles[&#039;style&#039;] = $block_attributes[&#039;style&#039;][&#039;border&#039;][&#039;style&#039;];
	}

	// Border width.
	if (
		$has_border_width_support &amp;&amp;
		isset( $block_attributes[&#039;style&#039;][&#039;border&#039;][&#039;width&#039;] ) &amp;&amp;
		! wp_should_skip_block_supports_serialization( $block_type, &#039;__experimentalBorder&#039;, &#039;width&#039; )
	) {
		$border_width = $block_attributes[&#039;style&#039;][&#039;border&#039;][&#039;width&#039;];

		// This check handles original unitless implementation.
		if ( is_numeric( $border_width ) ) {
			$border_width .= &#039;px&#039;;
		}

		$border_block_styles[&#039;width&#039;] = $border_width;
	}

	// Border color.
	if (
		$has_border_color_support &amp;&amp;
		! wp_should_skip_block_supports_serialization( $block_type, &#039;__experimentalBorder&#039;, &#039;color&#039; )
	) {
		$preset_border_color          = array_key_exists( &#039;borderColor&#039;, $block_attributes ) ? &quot;var:preset|color|{$block_attributes[&#039;borderColor&#039;]}&quot; : null;
		$custom_border_color          = isset( $block_attributes[&#039;style&#039;][&#039;border&#039;][&#039;color&#039;] ) ? $block_attributes[&#039;style&#039;][&#039;border&#039;][&#039;color&#039;] : null;
		$border_block_styles[&#039;color&#039;] = $preset_border_color ? $preset_border_color : $custom_border_color;
	}

	// Generates styles for individual border sides.
	if ( $has_border_color_support || $has_border_width_support ) {
		foreach ( array( &#039;top&#039;, &#039;right&#039;, &#039;bottom&#039;, &#039;left&#039; ) as $side ) {
			$border                       = isset( $block_attributes[&#039;style&#039;][&#039;border&#039;][ $side ] ) ? $block_attributes[&#039;style&#039;][&#039;border&#039;][ $side ] : null;
			$border_side_values           = array(
				&#039;width&#039; =&gt; isset( $border[&#039;width&#039;] ) &amp;&amp; ! wp_should_skip_block_supports_serialization( $block_type, &#039;__experimentalBorder&#039;, &#039;width&#039; ) ? $border[&#039;width&#039;] : null,
				&#039;color&#039; =&gt; isset( $border[&#039;color&#039;] ) &amp;&amp; ! wp_should_skip_block_supports_serialization( $block_type, &#039;__experimentalBorder&#039;, &#039;color&#039; ) ? $border[&#039;color&#039;] : null,
				&#039;style&#039; =&gt; isset( $border[&#039;style&#039;] ) &amp;&amp; ! wp_should_skip_block_supports_serialization( $block_type, &#039;__experimentalBorder&#039;, &#039;style&#039; ) ? $border[&#039;style&#039;] : null,
			);
			$border_block_styles[ $side ] = $border_side_values;
		}
	}

	// Collect classes and styles.
	$attributes = array();
	$styles     = wp_style_engine_get_styles( array( &#039;border&#039; =&gt; $border_block_styles ) );

	if ( ! empty( $styles[&#039;classnames&#039;] ) ) {
		$attributes[&#039;class&#039;] = $styles[&#039;classnames&#039;];
	}

	if ( ! empty( $styles[&#039;css&#039;] ) ) {
		$attributes[&#039;style&#039;] = $styles[&#039;css&#039;];
	}

	return $attributes;
}

/**
 * Checks whether the current block type supports the border feature requested.
 *
 * If the `__experimentalBorder` support flag is a boolean `true` all border
 * support features are available. Otherwise, the specific feature&#039;s support
 * flag nested under `experimentalBorder` must be enabled for the feature
 * to be opted into.
 *
 * @since 5.8.0
 * @access private
 *
 * @param WP_Block_Type $block_type    Block type to check for support.
 * @param string        $feature       Name of the feature to check support for.
 * @param mixed         $default_value Fallback value for feature support, defaults to false.
 * @return bool Whether the feature is supported.
 */
function wp_has_border_feature_support( $block_type, $feature, $default_value = false ) {
	// Check if all border support features have been opted into via `&quot;__experimentalBorder&quot;: true`.
	if ( $block_type instanceof WP_Block_Type ) {
		$block_type_supports_border = isset( $block_type-&gt;supports[&#039;__experimentalBorder&#039;] )
			? $block_type-&gt;supports[&#039;__experimentalBorder&#039;]
			: $default_value;
		if ( true === $block_type_supports_border ) {
			return true;
		}
	}

	// Check if the specific feature has been opted into individually
	// via nested flag under `__experimentalBorder`.
	return block_has_support( $block_type, array( &#039;__experimentalBorder&#039;, $feature ), $default_value );
}

// Register the block support.
WP_Block_Supports::get_instance()-&gt;register(
	&#039;border&#039;,
	array(
		&#039;register_attribute&#039; =&gt; &#039;wp_register_border_support&#039;,
		&#039;apply&#039;              =&gt; &#039;wp_apply_border_support&#039;,
	)
);
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