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| 1 | <?php |
| 2 | /** |
| 3 | * Podcast Player block render implementation. |
| 4 | * |
| 5 | * Loaded lazily from podcast-player.php only when the block is rendered, to keep |
| 6 | * the render body out of the eager front-end PHP/opcache footprint. |
| 7 | * |
| 8 | * @package automattic/jetpack |
| 9 | */ |
| 10 | |
| 11 | namespace Automattic\Jetpack\Extensions\Podcast_Player; |
| 12 | |
| 13 | use Automattic\Jetpack\Blocks; |
| 14 | use Automattic\Jetpack\Status\Request; |
| 15 | use Jetpack_Gutenberg; |
| 16 | use Jetpack_Podcast_Helper; |
| 17 | |
| 18 | if ( ! defined( 'ABSPATH' ) ) { |
| 19 | exit( 0 ); |
| 20 | } |
| 21 | |
| 22 | if ( ! class_exists( 'Jetpack_Podcast_Helper' ) ) { |
| 23 | require_once JETPACK__PLUGIN_DIR . '/_inc/lib/class-jetpack-podcast-helper.php'; |
| 24 | } |
| 25 | |
| 26 | /** |
| 27 | * Returns the error message wrapped in HTML if current user |
| 28 | * has the capability to edit the post. Public visitors will |
| 29 | * never see errors. |
| 30 | * |
| 31 | * @param string $message The error message to display. |
| 32 | * @return string |
| 33 | */ |
| 34 | function render_error( $message ) { |
| 35 | // Suppress errors for users unable to address them. |
| 36 | if ( ! current_user_can( 'edit_posts' ) ) { |
| 37 | return ''; |
| 38 | } |
| 39 | return '<p>' . esc_html( $message ) . '</p>'; |
| 40 | } |
| 41 | |
| 42 | /** |
| 43 | * Podcast Player block registration/dependency declaration. |
| 44 | * |
| 45 | * @param array $attributes Array containing the Podcast Player block attributes. |
| 46 | * @param string $content Fallback content - a direct link to RSS, as rendered by save.js. |
| 47 | * @return string |
| 48 | */ |
| 49 | function render_block_implementation( $attributes, $content ) { |
| 50 | // Don't render an interactive version of the block outside the frontend context. |
| 51 | if ( ! Request::is_frontend() ) { |
| 52 | return $content; |
| 53 | } |
| 54 | |
| 55 | // Test for empty URLS. |
| 56 | if ( empty( $attributes['url'] ) ) { |
| 57 | return render_error( __( 'No Podcast URL provided. Please enter a valid Podcast RSS feed URL.', 'jetpack' ) ); |
| 58 | } |
| 59 | |
| 60 | // Test for invalid URLs. |
| 61 | if ( ! wp_http_validate_url( $attributes['url'] ) ) { |
| 62 | return render_error( __( 'Your podcast URL is invalid and couldn\'t be embedded. Please double check your URL.', 'jetpack' ) ); |
| 63 | } |
| 64 | |
| 65 | if ( ! empty( $attributes['selectedEpisodes'] ) ) { |
| 66 | $guids = array_map( |
| 67 | function ( $episode ) { |
| 68 | return $episode['guid']; |
| 69 | }, |
| 70 | $attributes['selectedEpisodes'] |
| 71 | ); |
| 72 | $player_args = array( 'guids' => $guids ); |
| 73 | } else { |
| 74 | $player_args = array(); |
| 75 | } |
| 76 | |
| 77 | // Sanitize the URL. |
| 78 | $attributes['url'] = esc_url_raw( $attributes['url'] ); |
| 79 | $player_data = ( new Jetpack_Podcast_Helper( $attributes['url'] ) )->get_player_data( $player_args ); |
| 80 | |
| 81 | if ( is_wp_error( $player_data ) ) { |
| 82 | return render_error( $player_data->get_error_message() ); |
| 83 | } |
| 84 | |
| 85 | return render_player( $player_data, $attributes ); |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * Renders the HTML for the Podcast player and tracklist. |
| 90 | * |
| 91 | * @param array $player_data The player data details. |
| 92 | * @param array $attributes Array containing the Podcast Player block attributes. |
| 93 | * @return string The HTML for the podcast player. |
| 94 | */ |
| 95 | function render_player( $player_data, $attributes ) { |
| 96 | // If there are no tracks (it is possible) then display appropriate user facing error message. |
| 97 | if ( empty( $player_data['tracks'] ) ) { |
| 98 | return render_error( __( 'No tracks available to play.', 'jetpack' ) ); |
| 99 | } |
| 100 | |
| 101 | if ( is_wp_error( $player_data['tracks'] ) ) { |
| 102 | return render_error( $player_data['tracks']->get_error_message() ); |
| 103 | } |
| 104 | |
| 105 | // Only use the amount of tracks requested. |
| 106 | $player_data['tracks'] = array_slice( |
| 107 | $player_data['tracks'], |
| 108 | 0, |
| 109 | absint( $attributes['itemsToShow'] ) |
| 110 | ); |
| 111 | |
| 112 | // Generate a unique id for the block instance. |
| 113 | $instance_id = wp_unique_id( 'jetpack-podcast-player-block-' . get_the_ID() . '-' ); |
| 114 | $player_data['playerId'] = $instance_id; |
| 115 | |
| 116 | // Generate object to be used as props for PodcastPlayer. |
| 117 | $player_props = array_merge( |
| 118 | // Add all attributes. |
| 119 | array( 'attributes' => $attributes ), |
| 120 | // Add all player data. |
| 121 | $player_data |
| 122 | ); |
| 123 | |
| 124 | $primary_colors = get_colors( 'primary', $attributes, 'color' ); |
| 125 | $secondary_colors = get_colors( 'secondary', $attributes, 'color' ); |
| 126 | $background_colors = get_colors( 'background', $attributes, 'background-color' ); |
| 127 | |
| 128 | $player_classes_name = trim( "{$secondary_colors['class']} {$background_colors['class']}" ); |
| 129 | $player_inline_style = trim( "{$secondary_colors['style']} {$background_colors['style']}" ); |
| 130 | $player_inline_style .= get_css_vars( $attributes ); |
| 131 | $wrapper_attributes = \WP_Block_Supports::get_instance()->apply_block_supports(); |
| 132 | $block_classname = Blocks::classes( Blocks::get_block_feature( __DIR__ ), $attributes, array( 'is-default' ) ); |
| 133 | $is_amp = Blocks::is_amp_request(); |
| 134 | |
| 135 | ob_start(); |
| 136 | ?> |
| 137 | <div class="<?php echo esc_attr( $block_classname ); ?>"<?php echo ! empty( $wrapper_attributes['style'] ) ? ' style="' . esc_attr( $wrapper_attributes['style'] ) . '"' : ''; ?> id="<?php echo esc_attr( $instance_id ); ?>"> |
| 138 | <section |
| 139 | class="jetpack-podcast-player <?php echo esc_attr( $player_classes_name ); ?>" |
| 140 | style="<?php echo esc_attr( $player_inline_style ); ?>" |
| 141 | > |
| 142 | <?php |
| 143 | render( |
| 144 | 'podcast-header', |
| 145 | array_merge( |
| 146 | $player_props, |
| 147 | array( |
| 148 | 'primary_colors' => $primary_colors, |
| 149 | 'player_id' => $player_data['playerId'], |
| 150 | ) |
| 151 | ) |
| 152 | ); |
| 153 | ?> |
| 154 | <?php if ( count( $player_data['tracks'] ) > 1 ) : ?> |
| 155 | <ol class="jetpack-podcast-player__tracks"> |
| 156 | <?php foreach ( $player_data['tracks'] as $track_index => $attachment ) : ?> |
| 157 | <?php |
| 158 | render( |
| 159 | 'playlist-track', |
| 160 | array( |
| 161 | 'is_active' => 0 === $track_index, |
| 162 | 'attachment' => $attachment, |
| 163 | 'primary_colors' => $primary_colors, |
| 164 | 'secondary_colors' => $secondary_colors, |
| 165 | ) |
| 166 | ); |
| 167 | ?> |
| 168 | <?php endforeach; ?> |
| 169 | </ol> |
| 170 | <?php endif; ?> |
| 171 | </section> |
| 172 | <?php if ( ! $is_amp ) : ?> |
| 173 | <script type="application/json"><?php echo wp_json_encode( $player_props, JSON_UNESCAPED_SLASHES | JSON_HEX_TAG | JSON_HEX_AMP ); ?></script> |
| 174 | <?php endif; ?> |
| 175 | </div> |
| 176 | <?php |
| 177 | /** |
| 178 | * Enqueue necessary scripts and styles. |
| 179 | */ |
| 180 | if ( ! $is_amp ) { |
| 181 | wp_enqueue_style( 'wp-mediaelement' ); |
| 182 | } |
| 183 | Jetpack_Gutenberg::load_assets_as_required( __DIR__, array( 'mediaelement' ) ); |
| 184 | |
| 185 | return ob_get_clean(); |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * Given the color name, block attributes and the CSS property, |
| 190 | * the function will return an array with the `class` and `style` |
| 191 | * HTML attributes to be used straight in the markup. |
| 192 | * |
| 193 | * @example |
| 194 | * $color = get_colors( 'secondary', $attributes, 'border-color' |
| 195 | * => array( 'class' => 'has-secondary', 'style' => 'border-color: #333' ) |
| 196 | * |
| 197 | * @param string $name Color attribute name, for instance `primary`, `secondary`, ... |
| 198 | * @param array $attrs Block attributes. |
| 199 | * @param string $property Color CSS property, fo instance `color`, `background-color`, ... |
| 200 | * @return array Colors array. |
| 201 | */ |
| 202 | function get_colors( $name, $attrs, $property ) { |
| 203 | $attr_color = "{$name}Color"; |
| 204 | $attr_custom = 'custom' . ucfirst( $attr_color ); |
| 205 | |
| 206 | $color = $attrs[ $attr_color ] ?? null; |
| 207 | $custom_color = $attrs[ $attr_custom ] ?? null; |
| 208 | |
| 209 | $colors = array( |
| 210 | 'class' => '', |
| 211 | 'style' => '', |
| 212 | ); |
| 213 | |
| 214 | if ( $color || $custom_color ) { |
| 215 | $colors['class'] .= "has-{$name}"; |
| 216 | |
| 217 | if ( $color ) { |
| 218 | $colors['class'] .= " has-{$color}-{$property}"; |
| 219 | } elseif ( $custom_color ) { |
| 220 | $colors['style'] .= "{$property}: {$custom_color};"; |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | return $colors; |
| 225 | } |
| 226 | |
| 227 | /** |
| 228 | * It generates a string with CSS variables according to the |
| 229 | * block colors, prefixing each one with `--jetpack-podcast-player'. |
| 230 | * |
| 231 | * @param array $attrs Podcast Block attributes object. |
| 232 | * @return string CSS variables depending on block colors. |
| 233 | */ |
| 234 | function get_css_vars( $attrs ) { |
| 235 | $colors_name = array( 'primary', 'secondary', 'background' ); |
| 236 | |
| 237 | $inline_style = ''; |
| 238 | foreach ( $colors_name as $color ) { |
| 239 | $hex_color = 'hex' . ucfirst( $color ) . 'Color'; |
| 240 | if ( ! empty( $attrs[ $hex_color ] ) ) { |
| 241 | $inline_style .= " --jetpack-podcast-player-{$color}: {$attrs[ $hex_color ]};"; |
| 242 | } |
| 243 | } |
| 244 | return $inline_style; |
| 245 | } |
| 246 | |
| 247 | /** |
| 248 | * Render the given template in server-side. |
| 249 | * Important note: |
| 250 | * The $template_props array will be extracted. |
| 251 | * This means it will create a var for each array item. |
| 252 | * Keep it mind when using this param to pass |
| 253 | * properties to the template. |
| 254 | * |
| 255 | * @html-template-var array $template_props |
| 256 | * |
| 257 | * @param string $name Template name, available in `./templates` folder. |
| 258 | * @param array $template_props Template properties. Optional. |
| 259 | * @param bool $print Render template. True as default. |
| 260 | * @return string|null HTML markup or null. |
| 261 | */ |
| 262 | function render( $name, $template_props = array(), $print = true ) { |
| 263 | if ( ! strpos( $name, '.php' ) ) { |
| 264 | $name .= '.php'; |
| 265 | } |
| 266 | |
| 267 | $template_path = __DIR__ . '/templates/' . $name; |
| 268 | |
| 269 | if ( ! file_exists( $template_path ) ) { |
| 270 | return ''; |
| 271 | } |
| 272 | |
| 273 | if ( $print ) { |
| 274 | include $template_path; |
| 275 | } else { |
| 276 | ob_start(); |
| 277 | include $template_path; |
| 278 | $markup = ob_get_contents(); |
| 279 | ob_end_clean(); |
| 280 | |
| 281 | return $markup; |
| 282 | } |
| 283 | } |
| 284 | |
| 285 | /** |
| 286 | * Render podcast player block for email. |
| 287 | * |
| 288 | * @param string $block_content The original block HTML content. |
| 289 | * @param array $parsed_block The parsed block data including attributes. |
| 290 | * @param object $rendering_context Email rendering context. |
| 291 | * |
| 292 | * @return string |
| 293 | */ |
| 294 | function render_email_implementation( $block_content, array $parsed_block, $rendering_context ) { |
| 295 | // Validate input parameters and required dependencies |
| 296 | if ( ! isset( $parsed_block['attrs'] ) || ! is_array( $parsed_block['attrs'] ) || |
| 297 | ! class_exists( '\Automattic\WooCommerce\EmailEditor\Integrations\Core\Renderer\Blocks\Audio' ) ) { |
| 298 | return ''; |
| 299 | } |
| 300 | |
| 301 | $attr = $parsed_block['attrs']; |
| 302 | |
| 303 | // Check if we have a valid podcast URL |
| 304 | if ( empty( $attr['url'] ) || ! wp_http_validate_url( $attr['url'] ) ) { |
| 305 | return ''; |
| 306 | } |
| 307 | |
| 308 | /* |
| 309 | * Link to the post containing the podcast player for better UX |
| 310 | * Users can see the full context and interact with the full player on the site |
| 311 | */ |
| 312 | $post_url = get_the_permalink(); |
| 313 | |
| 314 | if ( empty( $post_url ) ) { |
| 315 | return ''; |
| 316 | } |
| 317 | |
| 318 | /* |
| 319 | * Build block content HTML with audio tag that the audio renderer expects |
| 320 | * Note: The audio renderer extracts the URL from the src attribute and uses it as a link, |
| 321 | * not as an actual audio source. While semantically incorrect to use a post URL in an |
| 322 | * audio src attribute, this is the expected format for the WooCommerce audio renderer. |
| 323 | * The renderer will create a clickable link to the post, not attempt to play audio. |
| 324 | */ |
| 325 | $escaped_post_url = esc_url( $post_url ); |
| 326 | $block_content_html = sprintf( '<audio src="%s"></audio>', $escaped_post_url ); |
| 327 | |
| 328 | // Create a mock parsed block that WooCommerce's audio renderer can handle |
| 329 | $mock_parsed_block = array( |
| 330 | 'attrs' => array( |
| 331 | 'src' => $escaped_post_url, |
| 332 | 'label' => __( 'Listen to the podcast', 'jetpack' ), |
| 333 | ), |
| 334 | ); |
| 335 | |
| 336 | // Preserve email_attrs if present (used for spacing) |
| 337 | if ( ! empty( $parsed_block['email_attrs'] ) ) { |
| 338 | $mock_parsed_block['email_attrs'] = $parsed_block['email_attrs']; |
| 339 | } |
| 340 | |
| 341 | // Use WooCommerce's core audio renderer |
| 342 | $woo_audio_renderer = new \Automattic\WooCommerce\EmailEditor\Integrations\Core\Renderer\Blocks\Audio(); |
| 343 | |
| 344 | return $woo_audio_renderer->render( $block_content_html, $mock_parsed_block, $rendering_context ); |
| 345 | } |