| 1 |
<?php //phpcs:ignore WordPress.Files.FileName.InvalidClassFileName |
| 2 |
|
| 3 |
use Automattic\Jetpack\Assets; |
| 4 |
use Automattic\Jetpack\Extensions\Slideshow; |
| 5 |
|
| 6 |
/** |
| 7 |
* Slideshow shortcode. |
| 8 |
* Adds a new "slideshow" gallery type when adding a gallery using the classic editor. |
| 9 |
* |
| 10 |
* @package automattic/jetpack |
| 11 |
*/ |
| 12 |
|
| 13 |
/** |
| 14 |
* Slideshow shortcode usage: [gallery type="slideshow"] or the older [slideshow] |
| 15 |
*/ |
| 16 |
class Jetpack_Slideshow_Shortcode { |
| 17 |
/** |
| 18 |
* Number of slideshows on a page. |
| 19 |
* |
| 20 |
* @var int |
| 21 |
*/ |
| 22 |
public $instance_count = 0; |
| 23 |
|
| 24 |
/** |
| 25 |
* Constructor |
| 26 |
*/ |
| 27 |
public function __construct() { |
| 28 |
global $shortcode_tags; |
| 29 |
|
| 30 |
// Only if the slideshow shortcode has not already been defined. |
| 31 |
if ( ! array_key_exists( 'slideshow', $shortcode_tags ) ) { |
| 32 |
add_shortcode( 'slideshow', array( $this, 'shortcode_callback' ) ); |
| 33 |
} |
| 34 |
|
| 35 |
// Only if the gallery shortcode has not been redefined. |
| 36 |
if ( isset( $shortcode_tags['gallery'] ) && 'gallery_shortcode' === $shortcode_tags['gallery'] ) { |
| 37 |
add_filter( 'post_gallery', array( $this, 'post_gallery' ), 1002, 2 ); |
| 38 |
add_filter( 'jetpack_gallery_types', array( $this, 'add_gallery_type' ), 10 ); |
| 39 |
} |
| 40 |
} |
| 41 |
|
| 42 |
/** |
| 43 |
* Responds to the [gallery] shortcode, but not an actual shortcode callback. |
| 44 |
* |
| 45 |
* @param string $value An empty string if nothing has modified the gallery output, the output html otherwise. |
| 46 |
* @param array $attr The shortcode attributes array. |
| 47 |
* |
| 48 |
* @return string The (un)modified $value |
| 49 |
*/ |
| 50 |
public function post_gallery( $value, $attr ) { |
| 51 |
// Bail if somebody else has done something. |
| 52 |
if ( ! empty( $value ) ) { |
| 53 |
return $value; |
| 54 |
} |
| 55 |
|
| 56 |
// If [gallery type="slideshow"] have it behave just like [slideshow]. |
| 57 |
if ( ! empty( $attr['type'] ) && 'slideshow' === $attr['type'] ) { |
| 58 |
return $this->shortcode_callback( $attr ); |
| 59 |
} |
| 60 |
|
| 61 |
return $value; |
| 62 |
} |
| 63 |
|
| 64 |
/** |
| 65 |
* Add the Slideshow type to gallery settings |
| 66 |
* |
| 67 |
* @see Jetpack_Tiled_Gallery::media_ui_print_templates |
| 68 |
* |
| 69 |
* @param array $types An array of types where the key is the value, and the value is the caption. |
| 70 |
* |
| 71 |
* @return array |
| 72 |
*/ |
| 73 |
public function add_gallery_type( $types = array() ) { |
| 74 |
$types['slideshow'] = esc_html__( 'Slideshow', 'jetpack' ); |
| 75 |
|
| 76 |
return $types; |
| 77 |
} |
| 78 |
|
| 79 |
/** |
| 80 |
* Display shortcode. |
| 81 |
* |
| 82 |
* @param array $attr Shortcode attributes. |
| 83 |
*/ |
| 84 |
public function shortcode_callback( $attr ) { |
| 85 |
$post_id = get_the_ID(); |
| 86 |
|
| 87 |
$attr = shortcode_atts( |
| 88 |
array( |
| 89 |
'trans' => 'fade', |
| 90 |
'order' => 'ASC', |
| 91 |
'orderby' => 'menu_order ID', |
| 92 |
'id' => $post_id, |
| 93 |
'include' => '', |
| 94 |
'exclude' => '', |
| 95 |
'autostart' => true, |
| 96 |
'size' => '', |
| 97 |
), |
| 98 |
$attr, |
| 99 |
'slideshow' |
| 100 |
); |
| 101 |
|
| 102 |
if ( 'rand' === strtolower( $attr['order'] ) ) { |
| 103 |
$attr['orderby'] = 'none'; |
| 104 |
} |
| 105 |
|
| 106 |
$attr['orderby'] = sanitize_sql_orderby( $attr['orderby'] ); |
| 107 |
if ( ! $attr['orderby'] ) { |
| 108 |
$attr['orderby'] = 'menu_order ID'; |
| 109 |
} |
| 110 |
|
| 111 |
if ( ! $attr['size'] ) { |
| 112 |
$attr['size'] = 'full'; |
| 113 |
} |
| 114 |
|
| 115 |
// Don't restrict to the current post if include. |
| 116 |
$post_parent = ( empty( $attr['include'] ) ) ? (int) $attr['id'] : null; |
| 117 |
|
| 118 |
$attachments = get_posts( |
| 119 |
array( |
| 120 |
'post_status' => 'inherit', |
| 121 |
'post_type' => 'attachment', |
| 122 |
'post_mime_type' => 'image', |
| 123 |
'posts_per_page' => - 1, |
| 124 |
'post_parent' => $post_parent, |
| 125 |
'order' => $attr['order'], |
| 126 |
'orderby' => $attr['orderby'], |
| 127 |
'include' => $attr['include'], |
| 128 |
'exclude' => $attr['exclude'], |
| 129 |
'suppress_filters' => false, |
| 130 |
) |
| 131 |
); |
| 132 |
|
| 133 |
if ( count( $attachments ) < 1 ) { |
| 134 |
return false; |
| 135 |
} |
| 136 |
|
| 137 |
$gallery_instance = sprintf( 'gallery-%d-%d', $attr['id'], ++$this->instance_count ); |
| 138 |
|
| 139 |
$gallery = array(); |
| 140 |
foreach ( $attachments as $attachment ) { |
| 141 |
$attachment_image_src = wp_get_attachment_image_src( $attachment->ID, $attr['size'] ); |
| 142 |
$attachment_image_src = $attachment_image_src[0]; // [url, width, height]. |
| 143 |
$attachment_image_title = get_the_title( $attachment->ID ); |
| 144 |
$attachment_image_alt = get_post_meta( $attachment->ID, '_wp_attachment_image_alt', true ); |
| 145 |
/** |
| 146 |
* Filters the Slideshow slide caption. |
| 147 |
* |
| 148 |
* @module shortcodes |
| 149 |
* |
| 150 |
* @since 2.3.0 |
| 151 |
* |
| 152 |
* @param string wptexturize( strip_tags( $attachment->post_excerpt ) ) Post excerpt. |
| 153 |
* @param string $attachment ->ID Attachment ID. |
| 154 |
*/ |
| 155 |
$caption = apply_filters( 'jetpack_slideshow_slide_caption', wptexturize( wp_strip_all_tags( $attachment->post_excerpt ) ), $attachment->ID ); |
| 156 |
|
| 157 |
$gallery[] = (object) array( |
| 158 |
'src' => (string) esc_url_raw( $attachment_image_src ), |
| 159 |
'id' => (string) $attachment->ID, |
| 160 |
'title' => (string) esc_attr( $attachment_image_title ), |
| 161 |
'alt' => (string) esc_attr( $attachment_image_alt ), |
| 162 |
'caption' => (string) $caption, |
| 163 |
'itemprop' => 'image', |
| 164 |
); |
| 165 |
} |
| 166 |
|
| 167 |
$color = Jetpack_Options::get_option( 'slideshow_background_color', 'black' ); |
| 168 |
$autostart = $attr['autostart'] ? $attr['autostart'] : 'true'; |
| 169 |
$js_attr = array( |
| 170 |
'gallery' => $gallery, |
| 171 |
'selector' => $gallery_instance, |
| 172 |
'trans' => $attr['trans'] ? $attr['trans'] : 'fade', |
| 173 |
'autostart' => $autostart, |
| 174 |
'color' => $color, |
| 175 |
); |
| 176 |
|
| 177 |
// Show a link to the gallery in feeds. |
| 178 |
if ( is_feed() ) { |
| 179 |
return sprintf( |
| 180 |
'<a href="%s">%s</a>', |
| 181 |
esc_url( get_permalink( $post_id ) . '#' . $gallery_instance . '-slideshow' ), |
| 182 |
esc_html__( 'Click to view slideshow.', 'jetpack' ) |
| 183 |
); |
| 184 |
} |
| 185 |
|
| 186 |
if ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request() ) { |
| 187 |
// Load the styles and use the rendering method from the Slideshow block. |
| 188 |
Jetpack_Gutenberg::load_styles_as_required( 'slideshow' ); |
| 189 |
|
| 190 |
$amp_args = array( |
| 191 |
'ids' => wp_list_pluck( $gallery, 'id' ), |
| 192 |
); |
| 193 |
|
| 194 |
if ( 'true' == $autostart ) { // phpcs:ignore Universal.Operators.StrictComparisons.LooseEqual -- attribute can be stored as boolean or string. |
| 195 |
$amp_args['autoplay'] = true; |
| 196 |
} |
| 197 |
|
| 198 |
return Slideshow\render_amp( $amp_args ); |
| 199 |
} |
| 200 |
|
| 201 |
return $this->slideshow_js( $js_attr ); |
| 202 |
} |
| 203 |
|
| 204 |
/** |
| 205 |
* Render the slideshow js |
| 206 |
* |
| 207 |
* Returns the necessary markup and js to fire a slideshow. |
| 208 |
* |
| 209 |
* @param array $attr Attributes for the slideshow. |
| 210 |
* |
| 211 |
* @uses $this->enqueue_scripts() |
| 212 |
* |
| 213 |
* @return string HTML output. |
| 214 |
*/ |
| 215 |
public function slideshow_js( $attr ) { |
| 216 |
// Enqueue scripts. |
| 217 |
$this->enqueue_scripts(); |
| 218 |
|
| 219 |
$output = '<p class="jetpack-slideshow-noscript robots-nocontent">' . esc_html__( 'This slideshow requires JavaScript.', 'jetpack' ) . '</p>'; |
| 220 |
|
| 221 |
/* |
| 222 |
* Checking for JSON_HEX_AMP and friends here allows us to get rid of |
| 223 |
* '"', that can sometimes be included in the JSON input in some languages like French. |
| 224 |
*/ |
| 225 |
$gallery_attributes = _wp_specialchars( |
| 226 |
wp_check_invalid_utf8( |
| 227 |
wp_json_encode( $attr['gallery'], JSON_HEX_TAG | JSON_HEX_AMP | JSON_HEX_APOS | JSON_HEX_QUOT ) |
| 228 |
), |
| 229 |
ENT_QUOTES, |
| 230 |
false, |
| 231 |
true |
| 232 |
); |
| 233 |
|
| 234 |
$output .= sprintf( |
| 235 |
'<div id="%s" class="jetpack-slideshow-window jetpack-slideshow jetpack-slideshow-%s" data-trans="%s" data-autostart="%s" data-gallery="%s" itemscope itemtype="https://schema.org/ImageGallery"></div>', |
| 236 |
esc_attr( $attr['selector'] . '-slideshow' ), |
| 237 |
esc_attr( $attr['color'] ), |
| 238 |
esc_attr( $attr['trans'] ), |
| 239 |
esc_attr( $attr['autostart'] ), |
| 240 |
$gallery_attributes |
| 241 |
); |
| 242 |
|
| 243 |
return $output; |
| 244 |
} |
| 245 |
|
| 246 |
/** |
| 247 |
* Actually enqueues the scripts and styles. |
| 248 |
*/ |
| 249 |
public function enqueue_scripts() { |
| 250 |
|
| 251 |
wp_enqueue_script( 'jquery-cycle', plugins_url( '/js/jquery.cycle.min.js', __FILE__ ), array( 'jquery' ), '20161231', true ); |
| 252 |
wp_enqueue_script( |
| 253 |
'jetpack-slideshow', |
| 254 |
Assets::get_file_url_for_environment( '_inc/build/shortcodes/js/slideshow-shortcode.min.js', 'modules/shortcodes/js/slideshow-shortcode.js' ), |
| 255 |
array( 'jquery-cycle' ), |
| 256 |
'20160119.1', |
| 257 |
true |
| 258 |
); |
| 259 |
wp_enqueue_style( |
| 260 |
'jetpack-slideshow', |
| 261 |
plugins_url( '/css/slideshow-shortcode.css', __FILE__ ), |
| 262 |
array(), |
| 263 |
JETPACK__VERSION |
| 264 |
); |
| 265 |
wp_style_add_data( 'jetpack-slideshow', 'rtl', 'replace' ); |
| 266 |
|
| 267 |
wp_localize_script( |
| 268 |
'jetpack-slideshow', |
| 269 |
'jetpackSlideshowSettings', |
| 270 |
/** |
| 271 |
* Filters the slideshow JavaScript spinner. |
| 272 |
* |
| 273 |
* @module shortcodes |
| 274 |
* |
| 275 |
* @since 2.1.0 |
| 276 |
* @since 4.7.0 Added the `speed` option to the array of options. |
| 277 |
* |
| 278 |
* @param array $args |
| 279 |
* - string - spinner - URL of the spinner image. |
| 280 |
* - string - speed - Speed of the slideshow. Defaults to 4000. |
| 281 |
* - string - label_prev - Aria label for slideshow's previous button |
| 282 |
* - string - label_stop - Aria label for slideshow's pause button |
| 283 |
* - string - label_next - Aria label for slideshow's next button |
| 284 |
*/ |
| 285 |
apply_filters( |
| 286 |
'jetpack_js_slideshow_settings', |
| 287 |
array( |
| 288 |
'spinner' => plugins_url( '/img/slideshow-loader.gif', __FILE__ ), |
| 289 |
'speed' => '4000', |
| 290 |
'label_prev' => __( 'Previous Slide', 'jetpack' ), |
| 291 |
'label_stop' => __( 'Pause Slideshow', 'jetpack' ), |
| 292 |
'label_next' => __( 'Next Slide', 'jetpack' ), |
| 293 |
) |
| 294 |
) |
| 295 |
); |
| 296 |
} |
| 297 |
|
| 298 |
/** |
| 299 |
* Instantiate shortcode. |
| 300 |
*/ |
| 301 |
public static function init() { |
| 302 |
new Jetpack_Slideshow_Shortcode(); |
| 303 |
} |
| 304 |
} |
| 305 |
|
| 306 |
Jetpack_Slideshow_Shortcode::init(); |
| 307 |
|
