public static function shortcode($atts, $content = '', $tag = 'cn_thumbr')
{
// Grab an instance of the Connections object.
$instance = Connections_Directory();
$log = array();
$srcset = array();
$permitted = array('attachment', 'featured', 'path', 'url', 'logo', 'photo');
$defaults = array('type' => 'url', 'source' => NULL, 'negate' => FALSE, 'grayscale' => FALSE, 'brightness' => 0, 'colorize' => NULL, 'contrast' => 0, 'detect_edges' => FALSE, 'emboss' => FALSE, 'gaussian_blur' => FALSE, 'blur' => FALSE, 'sketchy' => FALSE, 'sharpen' => FALSE, 'smooth' => NULL, 'opacity' => 100, 'crop_mode' => 1, 'crop_focus' => array(0.5, 0.5), 'crop_only' => FALSE, 'canvas_color' => '#FFFFFF', 'quality' => 90, 'sizes' => '1024|640|320');
$defaults = apply_filters('cn_thumbr_shortcode_atts', $defaults);
$atts = shortcode_atts($defaults, $atts, $tag);
if (!in_array($atts['type'], $permitted)) {
return __('Valid image source type not supplied.', 'connections');
}
/*
* Convert some of the $atts values in the array to boolean because the Shortcode API passes all values as strings.
*/
cnFormatting::toBoolean($atts['negate']);
cnFormatting::toBoolean($atts['grayscale']);
cnFormatting::toBoolean($atts['detect_edges']);
cnFormatting::toBoolean($atts['emboss']);
cnFormatting::toBoolean($atts['gaussian_blur']);
cnFormatting::toBoolean($atts['blur']);
cnFormatting::toBoolean($atts['sketchy']);
cnFormatting::toBoolean($atts['sharpen']);
// cnFormatting::toBoolean( $atts['crop'] );
cnFormatting::toBoolean($atts['crop_only']);
$atts['sizes'] = explode('|', $atts['sizes']);
array_map('trim', $atts['sizes']);
array_map('absint', $atts['sizes']);
if (empty($atts['sizes'])) {
return __('No image sizes were supplied or supplied values were invalid.', 'connections');
}
switch ($atts['type']) {
case 'attachment':
$source = wp_get_attachment_url(absint($atts['source']));
break;
case 'featured':
$source = wp_get_attachment_url(get_post_thumbnail_id());
break;
case 'path':
$source = $atts['source'];
break;
case 'url':
$source = esc_url($atts['source']);
break;
case 'logo':
$result = $instance->retrieve->entry(absint($atts['source']));
$entry = new cnEntry($result);
$meta = $entry->getImageMeta(array('type' => 'logo'));
if (is_wp_error($meta)) {
// Display the error messages.
return implode(PHP_EOL, $meta->get_error_messages());
}
$source = $meta['url'];
break;
case 'photo':
$result = $instance->retrieve->entry(absint($atts['source']));
$entry = new cnEntry($result);
$meta = $entry->getImageMeta(array('type' => 'photo'));
if (is_wp_error($meta)) {
// Display the error messages.
return implode(PHP_EOL, $meta->get_error_messages());
}
$source = $meta['url'];
break;
}
// Unset $atts['source'] because passing that $atts to cnImage::get() extracts and overwrite the $source var.
unset($atts['source']);
foreach ($atts['sizes'] as $width) {
$atts['width'] = $width;
$image = cnImage::get($source, $atts, 'data');
if (is_wp_error($image)) {
// Display the error messages.
return implode(PHP_EOL, $image->get_error_messages());
} elseif ($image === FALSE) {
return __('An error has occured while creating the thumbnail.', 'connections');
}
if (defined('WP_DEBUG') && WP_DEBUG === TRUE) {
$log[] = '<pre>' . $image['log'] . '</pre>';
}
$srcset[] = $image['url'] . ' ' . $width . 'w';
}
$out = sprintf('<img class="cn-image" srcset="%1$s" sizes="100vw"%2$s />', implode(',', $srcset), empty($content) ? '' : ' alt="' . esc_attr($content) . '"');
if (defined('WP_DEBUG') && WP_DEBUG === TRUE) {
$out .= implode('', $log);
}
return $out;
}