require_once get_template_directory() . '/includes/gallery-utils.php';
function custom_gallery_shortcode($atts, $content = null) {
// Extract HTML content
$content = do_shortcode($content);
// Initialize variables
$images = array();
$dom = new DOMDocument();
// Configure DOM
libxml_use_internal_errors(true);
$dom->loadHTML(mb_convert_encoding($content, 'HTML-ENTITIES', 'UTF-8'), LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
libxml_clear_errors();
// Get main container
$container = $dom->getElementsByTagName('div')->item(0);
if (!$container) {
$container = $dom->createElement('div');
$dom->appendChild($container);
}
// Get current post ID and slug
$post_id = get_the_ID();
if (!$post_id) {
return $content;
}
// Check if valid cache exists
$cache_key = 'gallery_images_' . $post_id;
$valid_images = get_transient($cache_key);
if ($valid_images === false) {
// No cache or expired, process images
ini_set('memory_limit', '4096M');
set_time_limit(600);
libxml_use_internal_errors(true);
$dom->loadHTML(mb_convert_encoding($content, 'HTML-ENTITIES', 'UTF-8'), LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
libxml_clear_errors();
$container = $dom->getElementsByTagName('div')->item(0);
$links = $dom->getElementsByTagName('a');
$valid_images = array();
foreach ($links as $index => $link) {
$img = $link->getElementsByTagName('img')->item(0);
if ($img) {
$image_url = $link->getAttribute('href');
if ($image_url === '#' || empty($image_url)) {
$thumb_url = $img->getAttribute('src');
$image_url = str_replace('thumb-', '', $thumb_url);
}
if (!empty($image_url) && $image_url !== '#') {
$thumb_url = $img->getAttribute('src');
$thumb_path = str_replace(home_url('/'), ABSPATH, $thumb_url);
$thumb_dimensions = @getimagesize($thumb_path);
$full_dimensions = get_image_dimensions($image_url);
$valid_images[] = array(
'thumb' => $thumb_url,
'alt' => $img->getAttribute('alt') ?: '',
'width' => $thumb_dimensions ? $thumb_dimensions[0] : '',
'height' => $thumb_dimensions ? $thumb_dimensions[1] : '',
'url' => $image_url,
'full' => $image_url,
'full_width' => $full_dimensions['width'],
'full_height' => $full_dimensions['height'],
'index' => $index + 1
);
}
}
}
set_transient($cache_key, $valid_images, 31536000);
}
$total_valid = count($valid_images);
if ($total_valid === 0) {
return $content;
}
// Set interactive attributes
$container->setAttribute('data-post-id', $post_id);
$container->setAttribute('data-total', $total_valid);
$container->setAttribute('id', 'gallery-container-' . $post_id);
// Initial 8 images
$images_to_show = array_slice($valid_images, 0, 8);
// Clear original container
while ($container->hasChildNodes()) {
$container->removeChild($container->firstChild);
}
// Build Grid
$grid_container = $dom->createElement('div');
$grid_container->setAttribute('class', 'gallery-grid');
$grid_container->setAttribute('style', 'display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 0 -5px;');
$style = $dom->createElement('style');
$style->textContent = '
.gallery-grid, .additional-images {
grid-template-columns: repeat(4, 1fr);
gap: 10px;
margin: 0 -5px;
}
.gallery-item img {
width: 180px !important;
height: 180px !important;
object-fit: cover !important;
display: block !important;
margin: 0 auto !important;
border-radius: 10px !important;
}
@media (max-width: 768px) {
.gallery-grid, .additional-images {
grid-template-columns: repeat(2, 1fr) !important;
}
}
@media (max-width: 480px) {
.gallery-item img {
width: 100% !important;
max-width: 180px !important;
}
}
#gallery-cascade {
margin-top: 30px;
display: flex;
flex-direction: column;
align-items: center;
gap: 20px;
}
#gallery-cascade img {
max-width: 100%;
height: auto;
border-radius: 10px;
box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
';
$container->appendChild($style);
foreach ($images_to_show as $image) {
$div = $dom->createElement('div');
$div->setAttribute('class', 'gallery-item');
$div->setAttribute('style', 'margin: 5px; box-sizing: border-box; text-align: center;');
$img = $dom->createElement('img');
$img->setAttribute('src', $image['thumb']);
$img->setAttribute('alt', $image['alt']);
$img->setAttribute('loading', 'lazy');
$img->setAttribute('style', 'width: 180px; height: 180px; display: block; margin: 0 auto; border: 1px solid #ddd; border-radius: 10px; padding: 3px; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,0.1); object-fit: cover;');
$link = $dom->createElement('a');
$link->setAttribute('href', '#');
$link->setAttribute('class', 'link-like fullscreen-viewer');
$link->setAttribute('onclick', "if(window.openGalleryViewer) { openGalleryViewer($post_id, " . $image['index'] . "); return false; }");
$link->setAttribute('data-index', $image['index']);
$link->setAttribute('style', 'display: block; width: 100%; height: 100%; border: none; background: none; padding: 0; cursor: pointer; text-decoration: none;');
$link->appendChild($img);
$div->appendChild($link);
$grid_container->appendChild($div);
}
$container->appendChild($grid_container);
// "Load More" button
if ($total_valid > 8) {
$load_more_button = $dom->createElement('div');
$load_more_button->setAttribute('class', 'load-more-images');
$load_more_button->setAttribute('data-post-id', $post_id);
$load_more_button->setAttribute('style', 'text-align: center; margin: 20px 0;');
$button = $dom->createElement('button');
$button->setAttribute('class', 'load-all-button');
$button->setAttribute('style', 'background-color: #f70094; color: black; padding: 10px 20px; border: none; border-radius: 5px; cursor: pointer; font-size: 16px; font-weight: bold;');
$button->textContent = 'Load More';
$load_more_button->appendChild($button);
$container->appendChild($load_more_button);
$additional = $dom->createElement('div');
$additional->setAttribute('class', 'additional-images');
$additional->setAttribute('style', 'display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 0 -5px;');
$container->appendChild($additional);
}
// Cascade target
$cascade_target = $dom->createElement('div');
$cascade_target->setAttribute('id', 'gallery-cascade');
$container->appendChild($cascade_target);
// SEO: JSON-LD
$schema_images = array();
foreach ($valid_images as $img) {
$schema_images[] = array(
"@type" => "ImageObject",
"contentUrl" => $img['full'],
"width" => $img['full_width'],
"height" => $img['full_height'],
"description" => $img['alt']
);
}
$schema = array(
"@context" => "https://schema.org",
"@type" => "ImageGallery",
"name" => get_the_title($post_id),
"description" => get_the_excerpt($post_id),
"image" => $schema_images
);
$json_ld = $dom->createElement('script');
$json_ld->setAttribute('type', 'application/ld+json');
$json_ld->textContent = json_encode($schema, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
$container->appendChild($json_ld);
// SEO: NoScript
$noscript = $dom->createElement('noscript');
$ns_div = $dom->createElement('div');
foreach ($valid_images as $img) {
$ns_img = $dom->createElement('img');
$ns_img->setAttribute('src', $img['full']);
$ns_img->setAttribute('alt', $img['alt']);
$ns_div->appendChild($ns_img);
}
$noscript->appendChild($ns_div);
$container->appendChild($noscript);
return $dom->saveHTML($container);
}
return $dom->saveHTML($container);
}
// Remover el shortcode existente si existe
remove_shortcode('gallery');
// Agregar nuestro shortcode personalizado
add_shortcode('gallery', 'custom_gallery_shortcode');
/**
* Shortcode para botones de lectura
* Uso: [gallery_buttons]
*/
function gallery_buttons_shortcode($atts) {
$post_id = get_the_ID();
if (!$post_id) {
return '';
}
$post_slug = get_post_field('post_name', $post_id);
if (empty($post_slug)) {
return '';
}
$base_url = home_url('media/viewer/' . $post_slug);
$image_url = $base_url . '/image-1.php';
$cascade_url = $base_url . '/cascade.php';
// Verificar si existe el div uapv2-downloads en el contenido
$content = get_post_field('post_content', $post_id);
$has_downloads = strpos($content, 'uapv2-downloads') !== false;
$output = '
';
return $output;
}
add_shortcode('gallery_buttons', 'gallery_buttons_shortcode');
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