晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : /home/rainic/www/wp-contentTZh/plugins/elementor/modules/atomic-widgets/styles/styles-renderer.php
<?php

namespace Elementor\Modules\AtomicWidgets\Styles;

use Elementor\Core\Utils\Collection;
use Elementor\Modules\AtomicWidgets\Module;
use Elementor\Plugin;
use Elementor\Utils;
use Elementor\Modules\AtomicWidgets\PropsResolver\Render_Props_Resolver;

class Styles_Renderer {
	const DEFAULT_SELECTOR_PREFIX = '.elementor';

	/**
	 * @var array<string, array{direction: 'min' | 'max', value: int, is_enabled: boolean}>
	 */
	private array $breakpoints;

	private $on_prop_transform;

	private string $selector_prefix;

	/**
	 * @param array<string, array{direction: 'min' | 'max', value: int, is_enabled: boolean}> $breakpoints
	 * @param string                                                                          $selector_prefix
	 */
	private function __construct( array $breakpoints, string $selector_prefix = self::DEFAULT_SELECTOR_PREFIX ) {
		$this->breakpoints = $breakpoints;
		$this->selector_prefix = $selector_prefix;
	}

	public static function make( array $breakpoints, string $selector_prefix = self::DEFAULT_SELECTOR_PREFIX ): self {
		return new self( $breakpoints, $selector_prefix );
	}

	/**
	 * Render the styles to a CSS string.
	 *
	 * Styles format:
	 *   array<int, array{
	 *     id: string,
	 *     type: string,
	 *     cssName: string | null,
	 *     variants: array<int, array{
	 *         props: array<string, mixed>,
	 *         meta: array<string, mixed>
	 *     }>
	 *   }>
	 *
	 * @param array $styles Array of style definitions.
	 *
	 * @return string Rendered CSS string.
	 */
	public function render( array $styles ): string {
		$css_style = [];

		foreach ( $styles as $style_def ) {
			$style = $this->style_definition_to_css_string( $style_def );
			$css_style[] = $style;
		}

		return implode( '', $css_style );
	}

	public function on_prop_transform( callable $callback ): self {
		$this->on_prop_transform = $callback;

		return $this;
	}

	private function style_definition_to_css_string( array $style ): string {
		$base_selector = $this->get_base_selector( $style );

		if ( ! $base_selector ) {
			return '';
		}

		$stylesheet = [];

		foreach ( $style['variants'] as $variant ) {
			$style_declaration = $this->variant_to_css_string( $base_selector, $variant );

			if ( $style_declaration ) {
				$stylesheet[] = $style_declaration;
			}
		}

		return implode( '', $stylesheet );
	}

	private function get_base_selector( array $style_def ): ?string {
		$map = [
			'class' => '.',
		];

		if (
			isset( $style_def['type'] ) &&
			isset( $style_def['id'] ) &&
			isset( $map[ $style_def['type'] ] ) &&
			$style_def['id']
		) {
			$type = $map[ $style_def['type'] ];
			$name = $style_def['cssName'] ?? $style_def['id'];

			$selector_parts = array_filter( [
				$this->selector_prefix,
				"{$type}{$name}",
			] );

			return implode( ' ', $selector_parts );
		}

		return null;
	}

	private function variant_to_css_string( string $base_selector, array $variant ): string {
		$css = $this->props_to_css_string( $variant['props'] ) ?? '';
		$custom_css = $this->custom_css_to_css_string( $variant['custom_css'] ?? null );

		if ( ! $css && ! $custom_css ) {
			return '';
		}

		$state = isset( $variant['meta']['state'] ) ? ':' . $variant['meta']['state'] : '';
		$selector = $base_selector . $state;

		$style_declaration = $selector . '{' . $css . $custom_css . '}';

		if ( isset( $variant['meta']['breakpoint'] ) ) {
			$style_declaration = $this->wrap_with_media_query( $variant['meta']['breakpoint'], $style_declaration );
		}

		return $style_declaration;
	}

	private function props_to_css_string( array $props ): string {
		$schema = Style_Schema::get();

		return Collection::make( Render_Props_Resolver::for_styles()->resolve( $schema, $props ) )
			->filter()
			->map( function ( $value, $prop ) {
				if ( $this->on_prop_transform ) {
					call_user_func( $this->on_prop_transform, $prop, $value );
				}

				return $prop . ':' . $value . ';';
			} )
			->implode( '' );
	}

	private function custom_css_to_css_string( ?array $custom_css ): string {
		return ! empty( $custom_css['raw'] )
			? Utils::decode_string( $custom_css['raw'], '' ) . '\n'
			: '';
	}

	private function wrap_with_media_query( string $breakpoint_id, string $css ): string {
		if ( ! isset( $this->breakpoints[ $breakpoint_id ] ) ) {
			return $css;
		}

		$breakpoint = $this->breakpoints[ $breakpoint_id ];
		if ( isset( $breakpoint['is_enabled'] ) && ! $breakpoint['is_enabled'] ) {
			return '';
		}

		$query = $this->get_media_query( $this->breakpoints[ $breakpoint_id ] );

		return $query ? $query . '{' . $css . '}' : $css;
	}

	public static function get_media_query( $breakpoint ): ?string {
		if ( isset( $breakpoint['is_enabled'] ) && ! $breakpoint['is_enabled'] ) {
			return null;
		}

		$size = self::get_breakpoint_size( $breakpoint );

		return $size ? '@media(' . $size . ')' : null;
	}

	private static function get_breakpoint_size( array $breakpoint ): ?string {
		$bound = 'min' === $breakpoint['direction'] ? 'min-width' : 'max-width';
		$width = $breakpoint['value'] . 'px';

		return "{$bound}:{$width}";
	}
}

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