slideshow.php
446 lines
| 1 | <?php |
| 2 | /** |
| 3 | * Slideshow Block. |
| 4 | * |
| 5 | * @since 7.1.0 |
| 6 | * |
| 7 | * @package automattic/jetpack |
| 8 | */ |
| 9 | |
| 10 | namespace Automattic\Jetpack\Extensions\Slideshow; |
| 11 | |
| 12 | use Automattic\Jetpack\Blocks; |
| 13 | use Jetpack_Gutenberg; |
| 14 | |
| 15 | if ( ! defined( 'ABSPATH' ) ) { |
| 16 | exit( 0 ); |
| 17 | } |
| 18 | |
| 19 | /** |
| 20 | * Registers the block for use in Gutenberg |
| 21 | * This is done via an action so that we can disable |
| 22 | * registration if we need to. |
| 23 | */ |
| 24 | function register_block() { |
| 25 | Blocks::jetpack_register_block( |
| 26 | __DIR__, |
| 27 | array( |
| 28 | 'render_callback' => __NAMESPACE__ . '\load_assets', |
| 29 | 'render_email_callback' => __NAMESPACE__ . '\render_email', |
| 30 | ) |
| 31 | ); |
| 32 | } |
| 33 | add_action( 'init', __NAMESPACE__ . '\register_block' ); |
| 34 | |
| 35 | /** |
| 36 | * Slideshow block registration/dependency declaration. |
| 37 | * |
| 38 | * @param array $attr Array containing the slideshow block attributes. |
| 39 | * @param string $content String containing the slideshow block content. |
| 40 | * |
| 41 | * @return string |
| 42 | */ |
| 43 | function load_assets( $attr, $content ) { |
| 44 | Jetpack_Gutenberg::load_assets_as_required( __DIR__ ); |
| 45 | if ( Blocks::is_amp_request() ) { |
| 46 | return render_amp( $attr ); |
| 47 | } |
| 48 | |
| 49 | // Enqueue Swiper bundle for dynamic loading |
| 50 | if ( ! is_admin() && ! Blocks::is_amp_request() ) { |
| 51 | enqueue_swiper_library(); |
| 52 | } |
| 53 | |
| 54 | // Fix for lazy loading conflict with slideshow images. |
| 55 | if ( ! is_admin() ) { |
| 56 | add_filter( |
| 57 | 'wp_content_img_tag', |
| 58 | function ( $image ) { |
| 59 | if ( str_contains( $image, 'loading="lazy"' ) && str_contains( $image, 'wp-block-jetpack-slideshow_image' ) ) { |
| 60 | $image = str_replace( 'sizes="auto, ', 'sizes="', $image ); |
| 61 | } |
| 62 | return $image; |
| 63 | } |
| 64 | ); |
| 65 | } |
| 66 | |
| 67 | return $content; |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * Render slideshow block for email. |
| 72 | * |
| 73 | * @since 15.0 |
| 74 | * |
| 75 | * @param string $block_content The original block HTML content. |
| 76 | * @param array $parsed_block The parsed block data including attributes. |
| 77 | * @param object $rendering_context Email rendering context. |
| 78 | * |
| 79 | * @return string |
| 80 | */ |
| 81 | function render_email( $block_content, array $parsed_block, $rendering_context ) { |
| 82 | // Validate input parameters and required dependencies |
| 83 | if ( ! isset( $parsed_block['attrs'] ) || ! is_array( $parsed_block['attrs'] ) || |
| 84 | ! class_exists( '\Automattic\WooCommerce\EmailEditor\Integrations\Core\Renderer\Blocks\Gallery' ) ) { |
| 85 | return ''; |
| 86 | } |
| 87 | |
| 88 | $attributes = $parsed_block['attrs']; |
| 89 | |
| 90 | // Process images for email rendering |
| 91 | $images = process_slideshow_images_for_email( $attributes ); |
| 92 | |
| 93 | if ( empty( $images ) ) { |
| 94 | return ''; |
| 95 | } |
| 96 | |
| 97 | // Build innerBlocks that WooCommerce's gallery renderer expects |
| 98 | // The renderer looks for innerBlocks with blockName 'core/image' and innerHTML |
| 99 | $inner_blocks = array(); |
| 100 | foreach ( $images as $image ) { |
| 101 | // Build image HTML in the format that extract_image_from_html() can parse |
| 102 | $img_html = sprintf( |
| 103 | '<img src="%s" alt="%s"', |
| 104 | esc_url( $image['url'] ), |
| 105 | esc_attr( $image['alt'] ) |
| 106 | ); |
| 107 | |
| 108 | if ( ! empty( $image['id'] ) ) { |
| 109 | $img_html .= sprintf( ' class="wp-image-%d"', absint( $image['id'] ) ); |
| 110 | } |
| 111 | |
| 112 | $img_html .= ' />'; |
| 113 | |
| 114 | // Add caption if available (extract_image_from_html looks for figcaption) |
| 115 | // Preserve HTML in captions - the gallery renderer will sanitize it |
| 116 | if ( ! empty( $image['caption'] ) ) { |
| 117 | $img_html .= sprintf( |
| 118 | '<figcaption>%s</figcaption>', |
| 119 | wp_kses_post( $image['caption'] ) |
| 120 | ); |
| 121 | } |
| 122 | |
| 123 | // Create inner block structure that the gallery renderer expects |
| 124 | // The renderer only uses innerHTML, not attrs |
| 125 | $inner_blocks[] = array( |
| 126 | 'blockName' => 'core/image', |
| 127 | 'innerHTML' => $img_html, |
| 128 | ); |
| 129 | } |
| 130 | |
| 131 | // Build block content HTML for gallery caption extraction (if needed) |
| 132 | // The renderer uses $block_content parameter to extract gallery-level captions |
| 133 | $block_content_html = '<figure class="wp-block-gallery has-nested-images columns-default is-cropped"><ul class="blocks-gallery-grid"></ul></figure>'; |
| 134 | |
| 135 | // Create a mock parsed block that WooCommerce's gallery renderer can handle |
| 136 | // The renderer uses columns from attrs (defaults to 3, but 2 works better for email) |
| 137 | $mock_parsed_block = array( |
| 138 | 'innerBlocks' => $inner_blocks, |
| 139 | 'attrs' => array( |
| 140 | 'columns' => 2, |
| 141 | ), |
| 142 | ); |
| 143 | |
| 144 | // Preserve email_attrs if present (used for width calculation) |
| 145 | if ( ! empty( $parsed_block['email_attrs'] ) ) { |
| 146 | $mock_parsed_block['email_attrs'] = $parsed_block['email_attrs']; |
| 147 | } |
| 148 | |
| 149 | // Use WooCommerce's core gallery renderer |
| 150 | $woo_gallery_renderer = new \Automattic\WooCommerce\EmailEditor\Integrations\Core\Renderer\Blocks\Gallery(); |
| 151 | |
| 152 | return $woo_gallery_renderer->render( $block_content_html, $mock_parsed_block, $rendering_context ); |
| 153 | } |
| 154 | |
| 155 | /** |
| 156 | * Render slideshow block for AMP |
| 157 | * |
| 158 | * @param array $attr Array containing the slideshow block attributes. |
| 159 | * |
| 160 | * @return string |
| 161 | */ |
| 162 | function render_amp( $attr ) { |
| 163 | if ( empty( $attr['ids'] ) ) { |
| 164 | return ''; |
| 165 | } |
| 166 | |
| 167 | static $wp_block_jetpack_slideshow_id = 0; |
| 168 | ++$wp_block_jetpack_slideshow_id; |
| 169 | |
| 170 | $ids = $attr['ids']; |
| 171 | $autoplay = empty( $attr['autoplay'] ) ? false : true; |
| 172 | $extras = array( |
| 173 | 'wp-amp-block', |
| 174 | $autoplay ? 'wp-block-jetpack-slideshow__autoplay' : null, |
| 175 | $autoplay ? 'wp-block-jetpack-slideshow__autoplay-playing' : null, |
| 176 | ); |
| 177 | $classes = Blocks::classes( Blocks::get_block_feature( __DIR__ ), $attr, $extras ); |
| 178 | |
| 179 | return sprintf( |
| 180 | '<div class="%1$s" id="wp-block-jetpack-slideshow__%2$d"><div class="wp-block-jetpack-slideshow_container swiper">%3$s%4$s%5$s</div></div>', |
| 181 | esc_attr( $classes ), |
| 182 | absint( $wp_block_jetpack_slideshow_id ), |
| 183 | amp_carousel( $attr, $wp_block_jetpack_slideshow_id ), |
| 184 | $autoplay ? autoplay_ui( $wp_block_jetpack_slideshow_id ) : '', |
| 185 | render_paginator( $ids, $wp_block_jetpack_slideshow_id ) |
| 186 | ); |
| 187 | } |
| 188 | |
| 189 | /** |
| 190 | * Generate amp-carousel markup |
| 191 | * |
| 192 | * @param array $attr Array of block attributes. |
| 193 | * @param int $block_ordinal The ordinal number of the block, used in unique ID. |
| 194 | * |
| 195 | * @return string amp-carousel markup. |
| 196 | */ |
| 197 | function amp_carousel( $attr, $block_ordinal ) { |
| 198 | $ids = empty( $attr['ids'] ) ? array() : $attr['ids']; |
| 199 | $first_image = wp_get_attachment_metadata( $ids[0] ); |
| 200 | $delay = empty( $attr['delay'] ) ? 3 : absint( $attr['delay'] ); |
| 201 | $autoplay = empty( $attr['autoplay'] ) ? false : $attr['autoplay']; |
| 202 | $width = empty( $first_image['width'] ) ? 800 : $first_image['width']; |
| 203 | $height = empty( $first_image['height'] ) ? 600 : $first_image['height']; |
| 204 | return sprintf( |
| 205 | '<amp-carousel width="%1$d" height="%2$d" layout="responsive" type="slides" data-next-button-aria-label="%3$s" data-prev-button-aria-label="%4$s" controls loop %5$s id="wp-block-jetpack-slideshow__amp-carousel__%6$s" on="slideChange:wp-block-jetpack-slideshow__amp-pagination__%6$s.toggle(index=event.index, value=true)">%7$s</amp-carousel>', |
| 206 | esc_attr( $width ), |
| 207 | esc_attr( $height ), |
| 208 | esc_attr__( 'Next Slide', 'jetpack' ), |
| 209 | esc_attr__( 'Previous Slide', 'jetpack' ), |
| 210 | $autoplay ? 'autoplay delay=' . esc_attr( $delay * 1000 ) : '', |
| 211 | absint( $block_ordinal ), |
| 212 | implode( '', slides( $ids, $width, $height ) ) |
| 213 | ); |
| 214 | } |
| 215 | |
| 216 | /** |
| 217 | * Generate array of slides markup |
| 218 | * |
| 219 | * @param array $ids Array of image ids. |
| 220 | * @param int $width Width of the container. |
| 221 | * @param int $height Height of the container. |
| 222 | * |
| 223 | * @return array Array of slides markup. |
| 224 | */ |
| 225 | function slides( $ids = array(), $width = 400, $height = 300 ) { |
| 226 | return array_map( |
| 227 | function ( $id ) use ( $width, $height ) { |
| 228 | $caption = wp_get_attachment_caption( $id ); |
| 229 | $figcaption = $caption ? sprintf( |
| 230 | '<figcaption class="wp-block-jetpack-slideshow_caption gallery-caption">%s</figcaption>', |
| 231 | wp_kses_post( $caption ) |
| 232 | ) : ''; |
| 233 | $image = wp_get_attachment_image( |
| 234 | $id, |
| 235 | array( $width, $height ), |
| 236 | false, |
| 237 | array( |
| 238 | 'class' => 'wp-block-jetpack-slideshow_image', |
| 239 | 'object-fit' => 'contain', |
| 240 | ) |
| 241 | ); |
| 242 | return sprintf( |
| 243 | '<div class="wp-block-jetpack-slideshow_slide"><figure>%s%s</figure></div>', |
| 244 | $image, |
| 245 | $figcaption |
| 246 | ); |
| 247 | }, |
| 248 | $ids |
| 249 | ); |
| 250 | } |
| 251 | |
| 252 | /** |
| 253 | * Render blocks paginator section |
| 254 | * |
| 255 | * @param array $ids Array of image ids. |
| 256 | * @param int $block_ordinal The ordinal number of the block, used in unique ID. |
| 257 | * |
| 258 | * @return array Array of bullets markup. |
| 259 | */ |
| 260 | function render_paginator( $ids = array(), $block_ordinal = 0 ) { |
| 261 | $total = count( $ids ); |
| 262 | |
| 263 | if ( $total < 6 ) { |
| 264 | return bullets( $ids, $block_ordinal ); |
| 265 | } |
| 266 | |
| 267 | return sprintf( |
| 268 | '<div class="swiper-pagination-simple">%s / %s</div>', |
| 269 | absint( $block_ordinal ), |
| 270 | absint( $total ) |
| 271 | ); |
| 272 | } |
| 273 | |
| 274 | /** |
| 275 | * Generate array of bullets markup |
| 276 | * |
| 277 | * @param array $ids Array of image ids. |
| 278 | * @param int $block_ordinal The ordinal number of the block, used in unique ID. |
| 279 | * |
| 280 | * @return array Array of bullets markup. |
| 281 | */ |
| 282 | function bullets( $ids = array(), $block_ordinal = 0 ) { |
| 283 | $buttons = array_map( |
| 284 | function ( $index ) { |
| 285 | $aria_label = sprintf( |
| 286 | /* translators: %d: Slide number. */ |
| 287 | __( 'Go to slide %d', 'jetpack' ), |
| 288 | absint( $index + 1 ) |
| 289 | ); |
| 290 | return sprintf( |
| 291 | '<button option="%d" class="swiper-pagination-bullet" tabindex="0" role="button" aria-label="%s" %s></button>', |
| 292 | absint( $index ), |
| 293 | esc_attr( $aria_label ), |
| 294 | 0 === $index ? 'selected' : '' |
| 295 | ); |
| 296 | }, |
| 297 | array_keys( $ids ) |
| 298 | ); |
| 299 | |
| 300 | return sprintf( |
| 301 | '<amp-selector id="wp-block-jetpack-slideshow__amp-pagination__%1$d" class="wp-block-jetpack-slideshow_pagination swiper-pagination swiper-pagination-custom amp-pagination" on="select:wp-block-jetpack-slideshow__amp-carousel__%1$d.goToSlide(index=event.targetOption)" layout="container">%2$s</amp-selector>', |
| 302 | absint( $block_ordinal ), |
| 303 | implode( '', $buttons ) |
| 304 | ); |
| 305 | } |
| 306 | |
| 307 | /** |
| 308 | * Generate autoplay play/pause UI. |
| 309 | * |
| 310 | * @param int $block_ordinal The ordinal number of the block, used in unique ID. |
| 311 | * |
| 312 | * @return string Autoplay UI markup. |
| 313 | */ |
| 314 | function autoplay_ui( $block_ordinal = 0 ) { |
| 315 | $block_id = sprintf( |
| 316 | 'wp-block-jetpack-slideshow__%d', |
| 317 | absint( $block_ordinal ) |
| 318 | ); |
| 319 | $amp_carousel_id = sprintf( |
| 320 | 'wp-block-jetpack-slideshow__amp-carousel__%d', |
| 321 | absint( $block_ordinal ) |
| 322 | ); |
| 323 | $autoplay_pause = sprintf( |
| 324 | '<a aria-label="%s" class="wp-block-jetpack-slideshow_button-pause" role="button" on="tap:%s.toggleAutoplay(toggleOn=false),%s.toggleClass(class=wp-block-jetpack-slideshow__autoplay-playing,force=false)"></a>', |
| 325 | esc_attr__( 'Pause Slideshow', 'jetpack' ), |
| 326 | esc_attr( $amp_carousel_id ), |
| 327 | esc_attr( $block_id ) |
| 328 | ); |
| 329 | $autoplay_play = sprintf( |
| 330 | '<a aria-label="%s" class="wp-block-jetpack-slideshow_button-play" role="button" on="tap:%s.toggleAutoplay(toggleOn=true),%s.toggleClass(class=wp-block-jetpack-slideshow__autoplay-playing,force=true)"></a>', |
| 331 | esc_attr__( 'Play Slideshow', 'jetpack' ), |
| 332 | esc_attr( $amp_carousel_id ), |
| 333 | esc_attr( $block_id ) |
| 334 | ); |
| 335 | return $autoplay_pause . $autoplay_play; |
| 336 | } |
| 337 | |
| 338 | /** |
| 339 | * Enqueue Swiper library assets for dynamic loading. |
| 340 | * |
| 341 | * @return void |
| 342 | */ |
| 343 | function enqueue_swiper_library() { |
| 344 | $swiper_js_path = Jetpack_Gutenberg::get_blocks_directory() . 'swiper.js'; |
| 345 | $swiper_css_path = Jetpack_Gutenberg::get_blocks_directory() . 'swiper' . ( is_rtl() ? '.rtl' : '' ) . '.css'; |
| 346 | |
| 347 | if ( Jetpack_Gutenberg::block_has_asset( $swiper_js_path ) ) { |
| 348 | wp_enqueue_script( |
| 349 | 'jetpack-swiper-library', |
| 350 | plugins_url( $swiper_js_path, JETPACK__PLUGIN_FILE ), |
| 351 | array(), |
| 352 | JETPACK__VERSION, |
| 353 | true |
| 354 | ); |
| 355 | } |
| 356 | |
| 357 | if ( Jetpack_Gutenberg::block_has_asset( $swiper_css_path ) ) { |
| 358 | wp_enqueue_style( |
| 359 | 'jetpack-swiper-library', |
| 360 | plugins_url( $swiper_css_path, JETPACK__PLUGIN_FILE ), |
| 361 | array(), |
| 362 | JETPACK__VERSION |
| 363 | ); |
| 364 | } |
| 365 | } |
| 366 | |
| 367 | /** |
| 368 | * Process slideshow images for email rendering. |
| 369 | * |
| 370 | * @param array $attr Block attributes containing image data. |
| 371 | * @return array Processed image data for email rendering. |
| 372 | */ |
| 373 | function process_slideshow_images_for_email( $attr ) { |
| 374 | $images = array(); |
| 375 | |
| 376 | // Get images from IDs (primary data source) |
| 377 | if ( ! empty( $attr['ids'] ) && is_array( $attr['ids'] ) ) { |
| 378 | foreach ( $attr['ids'] as $index => $id ) { |
| 379 | // Validate ID is a positive integer |
| 380 | $id = absint( $id ); |
| 381 | if ( ! $id ) { |
| 382 | continue; |
| 383 | } |
| 384 | |
| 385 | $image_url = wp_get_attachment_image_url( $id, 'medium' ); |
| 386 | |
| 387 | // Sanitize alt text from post meta |
| 388 | $alt_text = get_post_meta( $id, '_wp_attachment_image_alt', true ); |
| 389 | $alt_text = sanitize_text_field( $alt_text ); |
| 390 | |
| 391 | // Get caption from attachment post (stored in post_excerpt) |
| 392 | $attachment_post = get_post( $id ); |
| 393 | $caption = ''; |
| 394 | |
| 395 | // First try to get caption from images array if available (with validation) |
| 396 | // Preserve HTML in captions - the gallery renderer will sanitize it |
| 397 | if ( ! empty( $attr['images'] ) && is_array( $attr['images'] ) && isset( $attr['images'][ $index ]['caption'] ) ) { |
| 398 | $caption = wp_kses_post( $attr['images'][ $index ]['caption'] ); |
| 399 | } |
| 400 | |
| 401 | // If no caption in images array, get it from attachment post |
| 402 | if ( empty( $caption ) && $attachment_post && ! empty( $attachment_post->post_excerpt ) ) { |
| 403 | $caption = wp_kses_post( $attachment_post->post_excerpt ); |
| 404 | } |
| 405 | |
| 406 | if ( $image_url ) { |
| 407 | $images[] = array( |
| 408 | 'url' => $image_url, |
| 409 | 'alt' => $alt_text, |
| 410 | 'caption' => $caption, |
| 411 | 'id' => $id, |
| 412 | ); |
| 413 | } |
| 414 | } |
| 415 | } elseif ( ! empty( $attr['images'] ) && is_array( $attr['images'] ) ) { |
| 416 | // Fall back to images array if IDs aren't available (for edge cases/testing) |
| 417 | foreach ( $attr['images'] as $image_data ) { |
| 418 | if ( ! empty( $image_data['url'] ) ) { |
| 419 | // Sanitize URL - esc_url_raw returns empty string for invalid URLs |
| 420 | $url = esc_url_raw( $image_data['url'] ); |
| 421 | if ( ! $url ) { |
| 422 | continue; |
| 423 | } |
| 424 | |
| 425 | // Sanitize alt text |
| 426 | $alt_text = ! empty( $image_data['alt'] ) ? sanitize_text_field( $image_data['alt'] ) : ''; |
| 427 | |
| 428 | // Preserve HTML in captions - the gallery renderer will sanitize it |
| 429 | $caption = ! empty( $image_data['caption'] ) ? wp_kses_post( $image_data['caption'] ) : ''; |
| 430 | |
| 431 | // Validate ID if present |
| 432 | $id = ! empty( $image_data['id'] ) ? absint( $image_data['id'] ) : 0; |
| 433 | |
| 434 | $images[] = array( |
| 435 | 'url' => $url, |
| 436 | 'alt' => $alt_text, |
| 437 | 'caption' => $caption, |
| 438 | 'id' => $id, |
| 439 | ); |
| 440 | } |
| 441 | } |
| 442 | } |
| 443 | |
| 444 | return $images; |
| 445 | } |
| 446 |