class-do-css.php
5 years ago
class-enqueue-css.php
4 years ago
class-plugin-update.php
5 years ago
class-render-blocks.php
5 years ago
class-rest.php
5 years ago
class-settings.php
5 years ago
dashboard.php
5 years ago
defaults.php
5 years ago
functions.php
4 years ago
general.php
4 years ago
generate-css.php
5 years ago
class-enqueue-css.php
453 lines
| 1 | <?php |
| 2 | /** |
| 3 | * Handles the CSS Output. |
| 4 | * |
| 5 | * @package GenerateBlocks |
| 6 | */ |
| 7 | |
| 8 | if ( ! defined( 'ABSPATH' ) ) { |
| 9 | exit; // Exit if accessed directly. |
| 10 | } |
| 11 | |
| 12 | /** |
| 13 | * Enqueue our block CSS to the current page. |
| 14 | */ |
| 15 | class GenerateBlocks_Enqueue_CSS { |
| 16 | /** |
| 17 | * Instance. |
| 18 | * |
| 19 | * @access private |
| 20 | * @var object Instance |
| 21 | * @since 0.1 |
| 22 | */ |
| 23 | private static $instance; |
| 24 | |
| 25 | /** |
| 26 | * Initiator. |
| 27 | * |
| 28 | * @since 0.1 |
| 29 | * @return object initialized object of class. |
| 30 | */ |
| 31 | public static function get_instance() { |
| 32 | if ( ! isset( self::$instance ) ) { |
| 33 | self::$instance = new self(); |
| 34 | } |
| 35 | |
| 36 | return self::$instance; |
| 37 | } |
| 38 | |
| 39 | /** |
| 40 | * Constructor. |
| 41 | */ |
| 42 | public function __construct() { |
| 43 | $this->add_options(); |
| 44 | |
| 45 | add_action( 'save_post', array( $this, 'post_update_option' ), 10, 2 ); |
| 46 | add_action( 'save_post_wp_block', array( $this, 'wp_block_update' ), 10, 2 ); |
| 47 | add_action( 'init', array( $this, 'enqueue_assets' ) ); |
| 48 | add_filter( 'widget_update_callback', array( $this, 'force_file_regen_on_widget_save' ) ); |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * Enqueue our front-end assets. |
| 53 | */ |
| 54 | public function enqueue_assets() { |
| 55 | $dynamic_css_priority = apply_filters( 'generateblocks_dynamic_css_priority', 10 ); |
| 56 | |
| 57 | add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_dynamic_css' ), $dynamic_css_priority ); |
| 58 | add_action( 'wp_head', array( $this, 'print_inline_css' ), $dynamic_css_priority ); |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * Get the current page ID. |
| 63 | */ |
| 64 | public function page_id() { |
| 65 | global $post; |
| 66 | |
| 67 | $id = isset( $post ) ? $post->ID : false; |
| 68 | $id = ( ! is_singular() ) ? false : $id; |
| 69 | $id = ( function_exists( 'is_shop' ) && is_shop() ) ? get_option( 'woocommerce_shop_page_id' ) : $id; |
| 70 | $id = ( is_home() ) ? get_option( 'page_for_posts' ) : $id; |
| 71 | |
| 72 | return $id; |
| 73 | } |
| 74 | |
| 75 | /** |
| 76 | * Determine if we're using file mode or inline mode. |
| 77 | */ |
| 78 | public function mode() { |
| 79 | // Check if we're using file mode or inline mode. |
| 80 | // Default to file mode and fallback to inline if file mode is not possible. |
| 81 | $mode = apply_filters( 'generateblocks_css_print_method', 'file' ); |
| 82 | |
| 83 | if ( |
| 84 | ( function_exists( 'is_customize_preview' ) && is_customize_preview() ) |
| 85 | || |
| 86 | is_preview() |
| 87 | || |
| 88 | // AMP inlines all CSS, so inlining from the start improves CSS processing performance. |
| 89 | ( function_exists( 'is_amp_endpoint' ) && is_amp_endpoint() ) |
| 90 | ) { |
| 91 | return 'inline'; |
| 92 | } |
| 93 | |
| 94 | // Additional checks for file mode. |
| 95 | if ( 'file' === $mode && $this->needs_update() ) { |
| 96 | // Only allow processing 1 file every 5 seconds. |
| 97 | $current_time = (int) time(); |
| 98 | $last_time = (int) get_option( 'generateblocks_dynamic_css_time' ); |
| 99 | |
| 100 | if ( 5 <= ( $current_time - $last_time ) ) { |
| 101 | // Attempt to write to the file. |
| 102 | $mode = ( $this->can_write() && $this->make_css() ) ? 'file' : 'inline'; |
| 103 | |
| 104 | // Does again if the file exists. |
| 105 | if ( 'file' === $mode ) { |
| 106 | $mode = ( file_exists( $this->file( 'path' ) ) ) ? 'file' : 'inline'; |
| 107 | } |
| 108 | } |
| 109 | } |
| 110 | |
| 111 | return $mode; |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * Enqueue the dynamic CSS. |
| 116 | */ |
| 117 | public function enqueue_dynamic_css() { |
| 118 | $page_id = $this->page_id(); |
| 119 | |
| 120 | if ( ! $page_id ) { |
| 121 | return; |
| 122 | } |
| 123 | |
| 124 | $has_generateblocks = get_post_meta( $page_id, '_generateblocks_dynamic_css_version', true ); |
| 125 | |
| 126 | if ( empty( $has_generateblocks ) ) { |
| 127 | return; |
| 128 | } |
| 129 | |
| 130 | if ( 'file' === $this->mode() ) { |
| 131 | wp_enqueue_style( 'generateblocks', esc_url( $this->file( 'uri' ) ), array(), null ); // phpcs:ignore WordPress.WP.EnqueuedResourceParameters.MissingVersion |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | /** |
| 136 | * Print our inline CSS. |
| 137 | */ |
| 138 | public function print_inline_css() { |
| 139 | if ( 'inline' === $this->mode() || ! wp_style_is( 'generateblocks', 'enqueued' ) ) { |
| 140 | $css = generateblocks_get_frontend_block_css(); |
| 141 | |
| 142 | if ( empty( $css ) ) { |
| 143 | return; |
| 144 | } |
| 145 | |
| 146 | printf( |
| 147 | '<style id="generateblocks-css">%s</style>', |
| 148 | wp_strip_all_tags( $css ) // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped |
| 149 | ); |
| 150 | } |
| 151 | } |
| 152 | |
| 153 | /** |
| 154 | * Make our CSS. |
| 155 | */ |
| 156 | public function make_css() { |
| 157 | $page_id = $this->page_id(); |
| 158 | |
| 159 | if ( ! $page_id ) { |
| 160 | return false; |
| 161 | } |
| 162 | |
| 163 | $has_generateblocks = get_post_meta( $page_id, '_generateblocks_dynamic_css_version', true ); |
| 164 | |
| 165 | if ( empty( $has_generateblocks ) ) { |
| 166 | return false; |
| 167 | } |
| 168 | |
| 169 | $content = generateblocks_get_frontend_block_css(); |
| 170 | |
| 171 | if ( ! $content ) { |
| 172 | return false; |
| 173 | } |
| 174 | |
| 175 | // If we only have a little CSS, we should inline it. |
| 176 | $css_size = strlen( $content ); |
| 177 | |
| 178 | if ( $css_size < (int) apply_filters( 'generateblocks_css_inline_length', 500 ) ) { |
| 179 | return false; |
| 180 | } |
| 181 | |
| 182 | global $wp_filesystem; |
| 183 | |
| 184 | // Initialize the WordPress filesystem. |
| 185 | if ( empty( $wp_filesystem ) ) { |
| 186 | require_once ABSPATH . '/wp-admin/includes/file.php'; |
| 187 | WP_Filesystem(); |
| 188 | } |
| 189 | |
| 190 | // Take care of domain mapping. |
| 191 | if ( defined( 'DOMAIN_MAPPING' ) && DOMAIN_MAPPING ) { |
| 192 | if ( function_exists( 'domain_mapping_siteurl' ) && function_exists( 'get_original_url' ) ) { |
| 193 | $mapped_domain = domain_mapping_siteurl( false ); |
| 194 | $original_domain = get_original_url( 'siteurl' ); |
| 195 | |
| 196 | $content = str_replace( $original_domain, $mapped_domain, $content ); |
| 197 | } |
| 198 | } |
| 199 | |
| 200 | if ( is_writable( $this->file( 'path' ) ) || ( ! file_exists( $this->file( 'path' ) ) && is_writable( dirname( $this->file( 'path' ) ) ) ) ) { |
| 201 | |
| 202 | if ( ! $wp_filesystem->put_contents( $this->file( 'path' ), wp_strip_all_tags( $content ), FS_CHMOD_FILE ) ) { |
| 203 | |
| 204 | // Fail! |
| 205 | return false; |
| 206 | |
| 207 | } else { |
| 208 | |
| 209 | $option = get_option( 'generateblocks_dynamic_css_posts', array() ); |
| 210 | $option[ $page_id ] = true; |
| 211 | update_option( 'generateblocks_dynamic_css_posts', $option ); |
| 212 | |
| 213 | // Update the 'generateblocks_dynamic_css_time' option. |
| 214 | $this->update_saved_time(); |
| 215 | |
| 216 | // Success! |
| 217 | return true; |
| 218 | |
| 219 | } |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | /** |
| 224 | * Determines if the CSS file is writable. |
| 225 | */ |
| 226 | public function can_write() { |
| 227 | global $blog_id; |
| 228 | |
| 229 | // Get the upload directory for this site. |
| 230 | $upload_dir = wp_get_upload_dir(); |
| 231 | |
| 232 | // If this is a multisite installation, append the blogid to the filename. |
| 233 | $css_blog_id = ( is_multisite() && $blog_id > 1 ) ? '_blog-' . $blog_id : null; |
| 234 | $page_id = $this->page_id(); |
| 235 | |
| 236 | if ( ! $page_id ) { |
| 237 | return false; |
| 238 | } |
| 239 | |
| 240 | $file_name = '/style' . $css_blog_id . '-' . $page_id . '.css'; |
| 241 | $folder_path = $upload_dir['basedir'] . DIRECTORY_SEPARATOR . 'generateblocks'; |
| 242 | |
| 243 | // Does the folder exist? |
| 244 | if ( file_exists( $folder_path ) ) { |
| 245 | // Folder exists, but is the folder writable? |
| 246 | if ( ! is_writable( $folder_path ) ) { |
| 247 | // Folder is not writable. |
| 248 | // Does the file exist? |
| 249 | if ( ! file_exists( $folder_path . $file_name ) ) { |
| 250 | // File does not exist, therefore it can't be created |
| 251 | // since the parent folder is not writable. |
| 252 | return false; |
| 253 | } else { |
| 254 | // File exists, but is it writable? |
| 255 | if ( ! is_writable( $folder_path . $file_name ) ) { |
| 256 | // Nope, it's not writable. |
| 257 | return false; |
| 258 | } |
| 259 | } |
| 260 | } else { |
| 261 | // The folder is writable. |
| 262 | // Does the file exist? |
| 263 | if ( file_exists( $folder_path . $file_name ) ) { |
| 264 | // File exists. |
| 265 | // Is it writable? |
| 266 | if ( ! is_writable( $folder_path . $file_name ) ) { |
| 267 | // Nope, it's not writable. |
| 268 | return false; |
| 269 | } |
| 270 | } |
| 271 | } |
| 272 | } else { |
| 273 | // Can we create the folder? |
| 274 | // returns true if yes and false if not. |
| 275 | return wp_mkdir_p( $folder_path ); |
| 276 | } |
| 277 | |
| 278 | // all is well! |
| 279 | return true; |
| 280 | } |
| 281 | |
| 282 | /** |
| 283 | * Gets the css path or url to the stylesheet |
| 284 | * |
| 285 | * @param string $target path/url. |
| 286 | */ |
| 287 | public function file( $target = 'path' ) { |
| 288 | global $blog_id; |
| 289 | |
| 290 | // Get the upload directory for this site. |
| 291 | $upload_dir = wp_get_upload_dir(); |
| 292 | |
| 293 | // If this is a multisite installation, append the blogid to the filename. |
| 294 | $css_blog_id = ( is_multisite() && $blog_id > 1 ) ? '_blog-' . $blog_id : null; |
| 295 | $page_id = $this->page_id(); |
| 296 | |
| 297 | $file_name = 'style' . $css_blog_id . '-' . $page_id . '.css'; |
| 298 | $folder_path = $upload_dir['basedir'] . DIRECTORY_SEPARATOR . 'generateblocks'; |
| 299 | |
| 300 | // The complete path to the file. |
| 301 | $file_path = $folder_path . DIRECTORY_SEPARATOR . $file_name; |
| 302 | |
| 303 | // Get the URL directory of the stylesheet. |
| 304 | $css_uri_folder = $upload_dir['baseurl']; |
| 305 | |
| 306 | $css_uri = trailingslashit( $css_uri_folder ) . 'generateblocks/' . $file_name; |
| 307 | |
| 308 | // Take care of domain mapping. |
| 309 | if ( defined( 'DOMAIN_MAPPING' ) && DOMAIN_MAPPING ) { |
| 310 | if ( function_exists( 'domain_mapping_siteurl' ) && function_exists( 'get_original_url' ) ) { |
| 311 | $mapped_domain = domain_mapping_siteurl( false ); |
| 312 | $original_domain = get_original_url( 'siteurl' ); |
| 313 | $css_uri = str_replace( $original_domain, $mapped_domain, $css_uri ); |
| 314 | } |
| 315 | } |
| 316 | |
| 317 | $css_uri = set_url_scheme( $css_uri ); |
| 318 | |
| 319 | if ( 'path' === $target ) { |
| 320 | return $file_path; |
| 321 | } elseif ( 'url' === $target || 'uri' === $target ) { |
| 322 | $timestamp = ( file_exists( $file_path ) ) ? '?ver=' . filemtime( $file_path ) : ''; |
| 323 | return $css_uri . $timestamp; |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | /** |
| 328 | * Create settings. |
| 329 | */ |
| 330 | public function add_options() { |
| 331 | /** |
| 332 | * The 'generateblocks_dynamic_css_posts' option will hold an array of posts that have had their css generated. |
| 333 | * We can use that to keep track of which pages need their CSS to be recreated and which don't. |
| 334 | */ |
| 335 | add_option( 'generateblocks_dynamic_css_posts', array(), '', 'yes' ); |
| 336 | |
| 337 | /** |
| 338 | * The 'generateblocks_dynamic_css_time' option holds the time the file writer was last used. |
| 339 | */ |
| 340 | add_option( 'generateblocks_dynamic_css_time', time(), '', 'yes' ); |
| 341 | } |
| 342 | |
| 343 | /** |
| 344 | * Update the generateblocks_dynamic_css_posts option when a post is saved. |
| 345 | * |
| 346 | * @param int $post_id The current post ID. |
| 347 | * @param object $post The current post. |
| 348 | */ |
| 349 | public function post_update_option( $post_id, $post ) { |
| 350 | $is_autosave = wp_is_post_autosave( $post_id ); |
| 351 | $is_revision = wp_is_post_revision( $post_id ); |
| 352 | |
| 353 | if ( $is_autosave || $is_revision || ! current_user_can( 'edit_post', $post_id ) ) { |
| 354 | return $post_id; |
| 355 | } |
| 356 | |
| 357 | if ( isset( $post->post_content ) ) { |
| 358 | if ( strpos( $post->post_content, 'wp:generateblocks' ) !== false ) { |
| 359 | update_post_meta( $post_id, '_generateblocks_dynamic_css_version', sanitize_text_field( GENERATEBLOCKS_VERSION ) ); |
| 360 | } else { |
| 361 | delete_post_meta( $post_id, '_generateblocks_dynamic_css_version' ); |
| 362 | } |
| 363 | |
| 364 | // Store any re-usable block IDs on the page. We need this to regenerate CSS files later if the re-usable block is changed. |
| 365 | $reusable_blocks = preg_match_all( '/wp:block {"ref":([^}]*)}/', $post->post_content, $matches ); |
| 366 | $stored_reusable_blocks = array(); |
| 367 | |
| 368 | foreach ( $matches[1] as $match ) { |
| 369 | $stored_reusable_blocks[] = $match; |
| 370 | } |
| 371 | |
| 372 | if ( ! empty( $stored_reusable_blocks ) ) { |
| 373 | $stored_reusable_blocks = array_map( 'intval', $stored_reusable_blocks ); |
| 374 | update_post_meta( $post_id, '_generateblocks_reusable_blocks', $stored_reusable_blocks ); |
| 375 | } else { |
| 376 | delete_post_meta( $post_id, '_generateblocks_reusable_blocks' ); |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | // Make a new CSS file for this post on next load. |
| 381 | $option = get_option( 'generateblocks_dynamic_css_posts', array() ); |
| 382 | unset( $option[ $post_id ] ); |
| 383 | |
| 384 | update_option( 'generateblocks_dynamic_css_posts', $option ); |
| 385 | } |
| 386 | |
| 387 | /** |
| 388 | * Force regeneration of CSS files attached to pages with this re-usable block. |
| 389 | * |
| 390 | * @param int $post_id The current post ID. |
| 391 | * @param object $post The current post. |
| 392 | */ |
| 393 | public function wp_block_update( $post_id, $post ) { |
| 394 | $is_autosave = wp_is_post_autosave( $post_id ); |
| 395 | $is_revision = wp_is_post_revision( $post_id ); |
| 396 | |
| 397 | if ( $is_autosave || $is_revision || ! current_user_can( 'edit_post', $post_id ) ) { |
| 398 | return $post_id; |
| 399 | } |
| 400 | |
| 401 | if ( isset( $post->post_content ) ) { |
| 402 | if ( strpos( $post->post_content, 'wp:generateblocks' ) !== false ) { |
| 403 | global $wpdb; |
| 404 | |
| 405 | $option = get_option( 'generateblocks_dynamic_css_posts', array() ); |
| 406 | |
| 407 | $posts = $wpdb->get_col( "SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_generateblocks_reusable_blocks'" ); |
| 408 | |
| 409 | foreach ( (array) $posts as $id ) { |
| 410 | unset( $option[ $id ] ); |
| 411 | } |
| 412 | |
| 413 | update_option( 'generateblocks_dynamic_css_posts', $option ); |
| 414 | } |
| 415 | } |
| 416 | } |
| 417 | |
| 418 | /** |
| 419 | * Do we need to update the CSS file? |
| 420 | */ |
| 421 | public function needs_update() { |
| 422 | $option = get_option( 'generateblocks_dynamic_css_posts', array() ); |
| 423 | $page_id = $this->page_id(); |
| 424 | |
| 425 | // If the CSS file does not exist then we definitely need to regenerate the CSS. |
| 426 | if ( ! file_exists( $this->file( 'path' ) ) ) { |
| 427 | return true; |
| 428 | } |
| 429 | |
| 430 | return ( ! isset( $option[ $page_id ] ) || ! $option[ $page_id ] ) ? true : false; |
| 431 | } |
| 432 | |
| 433 | /** |
| 434 | * Update the 'generateblocks_dynamic_css_time' option. |
| 435 | */ |
| 436 | public function update_saved_time() { |
| 437 | update_option( 'generateblocks_dynamic_css_time', time() ); |
| 438 | } |
| 439 | |
| 440 | /** |
| 441 | * Force CSS files to regenerate after a widget has been saved. |
| 442 | * |
| 443 | * @param array $instance The current widget instance's settings. |
| 444 | */ |
| 445 | public function force_file_regen_on_widget_save( $instance ) { |
| 446 | update_option( 'generateblocks_dynamic_css_posts', array() ); |
| 447 | |
| 448 | return $instance; |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | GenerateBlocks_Enqueue_CSS::get_instance(); |
| 453 |