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<?php |
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/** |
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* Generate Dynamic Style |
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* @package GutSliderBlocks |
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*/ |
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|
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if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly. |
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|
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if( ! class_exists( 'GutSlider_Dynamic_Style' ) ) { |
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|
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class GutSlider_Dynamic_Style { |
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private $styles = []; |
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private $upload_dir; |
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private $upload_url; |
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|
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/** |
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* Constructor |
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*/ |
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public function __construct() { |
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add_filter( 'render_block', [ $this, 'collect_block_styles' ], 10, 2 ); |
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|
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if( wp_is_block_theme( ) ) { |
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add_action( 'wp_enqueue_scripts', [ $this, 'generate_and_enqueue_combined_css' ] ); |
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} else { |
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add_action( 'wp_footer', [ $this, 'generate_and_enqueue_combined_css' ] ); |
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} |
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|
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// Set upload directory and URL |
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$upload_dir = wp_upload_dir(); |
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$this->upload_dir = $upload_dir['basedir'] . '/gutslider-styles/'; |
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$this->upload_url = $upload_dir['baseurl'] . '/gutslider-styles/'; |
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|
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// Create directory if it doesn't exist |
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if ( ! file_exists( $this->upload_dir ) ) { |
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wp_mkdir_p( $this->upload_dir ); |
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} |
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} |
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|
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/** |
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* Collect styles from individual blocks |
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*/ |
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public function collect_block_styles($block_content, $block) { |
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if (isset($block['blockName']) && str_contains($block['blockName'], 'gutsliders/')) { |
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do_action( 'gutsliders_render_block', $block ); |
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|
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if (isset($block['attrs']['blockStyle'])) { |
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$style = $block['attrs']['blockStyle']; |
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|
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if ( is_array( $style ) && !empty( $style ) ) { |
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$style = implode(' ', $style); |
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} |
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|
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$this->styles[] = $style; |
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} |
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} |
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return $block_content; |
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} |
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|
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/** |
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* Generate and enqueue combined CSS |
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*/ |
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public function generate_and_enqueue_combined_css() { |
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if (empty($this->styles)) { |
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return; |
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} |
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|
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$combined_css = implode("\n", $this->styles); |
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$minified_css = $this->minify_css($combined_css); |
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|
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$css_file_name = 'gutslider-styles-' . get_the_ID() . '.min.css'; |
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$css_file_path = $this->upload_dir . $css_file_name; |
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$css_file_url = $this->upload_url . $css_file_name; |
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|
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// Initialize the WP_Filesystem |
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global $wp_filesystem; |
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if (empty($wp_filesystem)) { |
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require_once ABSPATH . 'wp-admin/includes/file.php'; |
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WP_Filesystem(); |
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} |
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|
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// Only create a new file if it doesn't exist or the content has changed |
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$existing_content = $wp_filesystem->exists($css_file_path) ? $wp_filesystem->get_contents($css_file_path) : ''; |
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if ($existing_content !== $minified_css) { |
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$wp_filesystem->put_contents($css_file_path, $minified_css, FS_CHMOD_FILE); |
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} |
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|
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// Check if file exists and is readable before enqueuing |
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if (file_exists($css_file_path) && is_readable($css_file_path)) { |
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$version = filemtime($css_file_path); |
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} else { |
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$version = time(); // Fallback version number |
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} |
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|
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// Enqueue the combined CSS file |
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if( file_exists( $css_file_path ) ) { |
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wp_enqueue_style( |
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'gutslider-combined-styles', |
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$css_file_url, |
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[], |
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$version |
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); |
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} |
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|
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} |
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|
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/** |
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* Minify CSS |
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*/ |
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private function minify_css($css) { |
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// Remove comments |
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$css = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $css); |
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// Remove space after colons |
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$css = str_replace(': ', ':', $css); |
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// Remove whitespace |
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$css = str_replace(array("\r\n", "\r", "\n", "\t", ' ', ' ', ' '), '', $css); |
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return $css; |
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} |
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} |
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} |
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|
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new GutSlider_Dynamic_Style(); // Initialize the class |
