/**
* Fields
*/
function keel_photoswipe_settings_field_activate()
{
$options = keel_photoswipe_get_theme_options();
?>
<label for="activate">
<input type="checkbox" name="keel_photoswipe_theme_options[activate]" id="activate" <?php
checked('on', $options['activate']);
?>
/>
<?php
_e('Activate PhotoSwipe image galleries', 'keel_photoswipe');
?>
</label>
<?php
}
/**
* Override default [gallery] shortcode
* @link http://robido.com/wordpress/wordpress-gallery-filter-to-modify-the-html-output-of-the-default-gallery-shortcode-and-style/address>]>
* @param String $output Default [gallery] output
* @param Array $attr Settings and options
* @return String New markup
*/
function keel_photoswipe_gallery($output, $attr)
{
// Check that feature is activated
$dev_options = keel_developer_options();
if (!$dev_options['gallery']) {
return;
}
// Initialize
global $post;
// Only run if PhotoSwipe galleries are activated
$options = keel_photoswipe_get_theme_options();
if ($options['activate'] === 'off') {
return;
}
// Gallery instance counter
static $instance = 0;
$instance++;
// Validate the author's orderby attribute
if (isset($attr['orderby'])) {
$attr['orderby'] = sanitize_sql_orderby($attr['orderby']);
if (!$attr['orderby']) {
unset($attr['orderby']);
}
}
// Get attributes from shortcode
extract(shortcode_atts(array('order' => 'ASC', 'orderby' => 'menu_order ID', 'id' => $post->ID, 'include' => '', 'exclude' => ''), $attr));
// Initialize
$id = intval($id);
$attachments = array();
if ($order == 'RAND') {
$orderby = 'none';
}
if (!empty($include)) {
// Include attribute is present
$include = preg_replace('/[^0-9,]+/', '', $include);
$_attachments = get_posts(array('include' => $include, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby));
// Setup attachments array
foreach ($_attachments as $key => $val) {
$attachments[$val->ID] = $_attachments[$key];
}
} else {
if (!empty($exclude)) {
// Exclude attribute is present
$exclude = preg_replace('/[^0-9,]+/', '', $exclude);
// Setup attachments array
$attachments = get_children(array('post_parent' => $id, 'exclude' => $exclude, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby));
} else {
// Setup attachments array
$attachments = get_children(array('post_parent' => $id, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby));
}
}
if (empty($attachments)) {
return '';
}
// Filter gallery differently for feeds
if (is_feed()) {
$output = "\n";
foreach ($attachments as $att_id => $attachment) {
$output .= wp_get_attachment_link($att_id, 'medium', true) . "\n";
}
return $output;
}
// Set grid width based on number of images
$count = count($attachments);
if ($count === 1) {
$grid = 'full';
} elseif ($count === 2) {
$grid = 'half';
} else {
$grid = 'dynamic';
}
// Generate gallery
$gallery = '<div data-photoswipe data-pswp-uid="' . $instance . '" class="row" data-masonry>';
foreach ($attachments as $id => $attachment) {
// Image data
$img_full = wp_get_attachment_image_src($id, 'full');
$img_medium = wp_get_attachment_image_src($id, 'medium');
$img = wp_get_attachment_image($id, 'medium', 0, array('class' => 'img-photo'));
$caption = $attachment->post_excerpt;
$figure = empty($caption) ? '' : '<figure hidden>' . $caption . '</figure>';
$gallery .= '<a data-size="' . $img_full[1] . 'x' . $img_full[2] . '" data-med="' . $img_medium[0] . '" data-med-size="' . $img_medium[1] . 'x' . $img_medium[2] . '" href="' . $img_full[0] . '" class="grid-' . $grid . '" data-masonry-content>' . $img . $figure . '</a>';
}
$gallery .= '</div>';
$ps_framework = '<div class="pswp" tabindex="-1" role="dialog" aria-hidden="true">' . '<div class="pswp__bg"></div>' . '<div class="pswp__scroll-wrap">' . '<div class="pswp__container">' . '<div class="pswp__item"></div>' . '<div class="pswp__item"></div>' . '<div class="pswp__item"></div>' . '</div>' . '<div class="pswp__ui pswp__ui--hidden">' . '<div class="pswp__top-bar">' . '<div class="pswp__counter"></div>' . '<button class="pswp__button pswp__button--close" title="Close (Esc)"></button>' . '<button class="pswp__button pswp__button--share" title="Share"></button>' . '<button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button>' . '<button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>' . '<div class="pswp__preloader">' . '<div class="pswp__preloader__icn">' . '<div class="pswp__preloader__cut">' . '<div class="pswp__preloader__donut"></div>' . '</div>' . '</div>' . '</div>' . '</div>' . '<div class="pswp__share-modal pswp__share-modal--hidden pswp__single-tap">' . '<div class="pswp__share-tooltip"></div>' . '</div>' . '<button class="pswp__button pswp__button--arrow--left" title="Previous (arrow left)"></button>' . '<button class="pswp__button pswp__button--arrow--right" title="Next (arrow right)"></button>' . '<div class="pswp__caption">' . '<div class="pswp__caption__center"></div>' . '</div>' . '</div>' . '</div>' . '</div>';
return $gallery . $ps_framework;
}
