/**
* Returns parameters values from the example, or posted or the default values
*
* @param string $algorithm
* @param string $source_code
* @param array $posted_params
* @param array $examples
* @param string $filename
* @return array
*/
function get_param_values($algorithm, $source_code, $posted_params, $examples, $filename)
{
$params = get_params($algorithm, $source_code);
if (empty($params)) {
$values = array();
} else {
if (isset($posted_params['example']) and isset($examples[$posted_params['example']])) {
$values = combine_params_and_values($params, $examples[$posted_params['example']]['values']);
} else {
if (!($values = filter_params($params, $posted_params))) {
$values = get_defaults($params, $filename);
}
}
}
return fill_missing_params($params, $values);
}
/**
* Update the additional meta for a post ID.
*
* @since 1.1
* @param int $post_id Post ID
* @param [type] $new_meta New additional meta to update
* @return void
*/
function update_additional_meta($post_id, $new_meta)
{
$old_meta = get_post_meta($post_id, '_ac_additional_content', true);
if (!(!empty($new_meta) && is_array($new_meta))) {
if ($old_meta) {
// Delete old meta if new meta is empty.
delete_post_meta($post_id, '_ac_additional_content');
}
return;
}
$defaults = get_defaults();
// Validate the new settings
foreach ($new_meta as $key => $setting) {
if (!is_array($setting)) {
unset($new_meta[$key]);
continue;
}
$setting = array_merge($defaults, $setting);
// Filter content for users without the unfiltered_html capability.
$filter_content = current_user_can('unfiltered_html') ? false : true;
/**
* Filter html in additional content before it is saved to the database.
*
* @since 1.0
* @param bool $filter_content Filter content. True for users without the unfiltered_html capability.
*/
$filter_content = apply_filters('ac_additional_content_filter_html', $filter_content, $setting, $post_id);
if ($filter_content) {
$setting['additional_content'] = wp_filter_post_kses($setting['additional_content']);
}
if (is_empty_string($setting['additional_content'])) {
unset($new_meta[$key]);
continue;
}
foreach (array('prepend', 'append') as $addition) {
if ('on' !== $setting[$addition]) {
$setting[$addition] = $defaults[$addition];
}
}
$setting['priority'] = absint($setting['priority']) ? absint($setting['priority']) : 10;
$new_meta[$key] = $setting;
}
$new_meta = array_values($new_meta);
if (!empty($new_meta)) {
$_new_meta = array();
$priorities = sort_by_priority($new_meta);
foreach ($priorities as $priority) {
foreach ($priority as $option) {
$_new_meta[] = $option;
}
}
if ($_new_meta != $old_meta) {
update_post_meta($post_id, '_ac_additional_content', $_new_meta);
}
} elseif (empty($new_meta) && $old_meta) {
delete_post_meta($post_id, '_ac_additional_content');
}
}
/**
* Display the additional content metabox.
*
* @since 1.0
* @return void
*/
function meta_box()
{
global $post;
$additional = get_post_meta($post->ID, '_ac_additional_content', true);
$defaults = get_defaults();
$metabox_defaults = metabox_defaults();
$text = metabox_text();
$class = metabox_classes();
$visible = ' js-visually-hidden';
$i = 0;
// Start the output of the metabox
echo "<style type='text/css'>\n\t\t\t#additional-content-container > div {\n\t\t\t\tbackground-color: #F9F9F9;\n\t\t\t\tborder: 1px solid #DFDFDF;\n\t\t\t\tpadding: 8px;\n\t\t\t\tmargin: 1em 0;\n\t\t\t}\n\t\t\t#additional-content-container > .sortable-placeholder {\n\t\t\t\tbackground-color: #fff;\n\t\t\t\tborder: 1px dashed #b4b9be;\n\t\t }\n\t\t\t.ac-option {\n\t\t\t\tdisplay: block;\n\t\t\t}\n\t\t\t.ac-option-content {\n\t\t\t\tmargin-top: 0;\n\t\t\t\tmargin-bottom: .5em;\n\t\t\t}\n\t\t\t.ac-option-hide {\n\t\t\t\tdisplay: none;\n\t\t\t}\n\t\t\t.js .js-visually-hidden {\n\t\t\t\tborder: 0;\n\t\t\t\tclip: rect(0 0 0 0);\n\t\t\t\theight: 1px;\n\t\t\t\tmargin: -1px;\n\t\t\t\toverflow: hidden;\n\t\t\t\tpadding: 0;\n\t\t\t\tposition: absolute;\n\t\t\t\twidth: 1px;\n\t\t\t}\n\t\t\t</style>";
$header = !empty($text['header_info']) ? "<p id='ac_info'>" . $text['header_info'] . '</p>' : '';
$describedby = !empty($header) ? ' aria-describedby="ac_info"' : '';
echo $header;
wp_nonce_field('ac_additional_content_nonce', 'ac_additional_content_nonce');
echo '<div id="additional-content-container" role="region" aria-live="polite" aria-relevant="additions removals">';
if (!empty($additional)) {
// Saved meta boxes.
foreach ($additional as $fields) {
$fields = array_merge($defaults, $fields);
$label = label_text($fields);
include 'partials/repeatable-fields.php';
$i++;
}
} else {
// New meta box.
$fields = $metabox_defaults;
$visible = ' js-no-toggle';
$label = label_text($fields);
include 'partials/repeatable-fields.php';
}
$add_row = get_transient('additional_content_add_empty_row');
if ($add_row) {
// Javascript is disabled. Let's add an empty metabox
delete_transient('additional_content_add_empty_row');
$i++;
$fields = $metabox_defaults;
$visible = '';
$label = label_text($fields);
include 'partials/repeatable-fields.php';
}
echo '</div>';
echo '<p><input id="ac-add-row" class="button" type="submit" value="' . $text['add_more_row'] . '" name="ac-add_more"></p>';
}
/**
* Returns validated additional content options.
*
* @since 1.0
* @param array $options Additional content options.
* @return array Sanitized options.
*/
private function validate_options($options = array())
{
$sanitized_options = array();
$defaults = get_defaults();
// Sanitize and validate the options.
foreach ($options as $option) {
if (!is_array($option)) {
continue;
}
$option = array_merge($defaults, $option);
// Continue if both prepend and append are empty.
if (empty($option['prepend']) && empty($option['append'])) {
continue;
}
// Continue if additional_content is empty.
if (is_empty_string($option['additional_content'])) {
continue;
}
// Use the same filters as the filters applied to the_content.
// This prevents filter recursion.
$option['additional_content'] = apply_filters('the_additional_content', $option['additional_content']);
// Add the option after validation.
$sanitized_options[] = $option;
}
return $sanitized_options;
}
