$link_obj = new blcLink($url);
//Creates or loads the link
$instance->set_link($link_obj);
$instances[] = $instance;
return $instances;
}
/**
* Change one URL to another (just returns the new URL).
*
* @param string $content The old URL.
* @param string $new_url The new URL.
* @param string $old_url Ignored.
* @param string $old_raw_url Ignored.
*
* @return array|WP_Error
*/
function edit($content, $new_url, $old_url, $old_raw_url)
{
return array('content' => $new_url, 'raw_url' => $new_url);
}
/**
* For URL fields, "unlinking" simply means blanking the field.
* (However, invididual link containers may implement a different logic for those fields.)
*/
function unlink($content, $url, $raw_url)
{
return '';
}
}
blc_register_parser('url_field', 'blcUrlField');
/**
* Change the URL in a metadata field to another one.
*
* This is tricky because there can be multiple metadata fields with the same name
* but different values. So we ignore $content (which might be an array of multiple
* metadata values) and use the old raw_url that we stored when parsing the field(s)
* instead.
*
* @see blcMetadataParser::parse()
*
* @param string $content Ignored.
* @param string $new_url The new URL.
* @param string $old_url Ignored.
* @param string $old_raw_url The current meta value.
*
* @return array|WP_Error
*/
function edit($content, $new_url, $old_url, $old_raw_url)
{
//For multiline fields (like 'enclosure') we only want to change the first line.
$lines = explode("\n", $old_raw_url);
array_shift($lines);
//Discard the old first line
array_unshift($lines, $new_url);
//Insert the new URL in its place.
$content = implode("\n", $lines);
return array('content' => $content, 'raw_url' => $new_url);
}
}
blc_register_parser('metadata', 'blcMetadataParser');
{
$url = $matches[3];
//Does the URL match?
if ($url == $this->old_url) {
return '';
//Completely remove the IMG tag
} else {
return $matches[0];
//return the image unchanged
}
}
/**
* Get the link text for printing in the "Broken Links" table.
* Sub-classes should override this method and display the link text in a way appropriate for the link type.
*
* @param blcLinkInstance $instance
* @param string $context
* @return string HTML
*/
function ui_get_link_text($instance, $context = 'display')
{
$text = __('Image', 'broken-link-checker');
$image = sprintf('<img src="%s/broken-link-checker/images/image.png" class="blc-small-image" alt="%2$s" title="%2$s"> ', WP_PLUGIN_URL, esc_attr($text));
if ($context != 'email') {
$text = $image . $text;
}
return $text;
}
}
blc_register_parser('image', 'blcHTMLImage');
* Helper function for blcHtmlLink::multi_edit()
* Applies the specified callback function to each link and merges
* the result with the current link attributes. If the callback returns
* a replacement HTML tag instead, it will be stored in the '#new_raw'
* key of the return array.
*
* @access protected
*
* @param array $link
* @param array $info The callback function and the extra argument to pass to that function (if any).
* @return array
*/
function execute_edit_callback($link, $info)
{
list($callback, $extra) = $info;
//Prepare arguments for the callback
$params = array($link);
if (isset($extra)) {
$params[] = $extra;
}
$new_link = call_user_func_array($callback, $params);
if (is_array($new_link)) {
$link = array_merge($link, $new_link);
} elseif (is_string($new_link)) {
$link['#new_raw'] = $new_link;
}
return $link;
}
}
blc_register_parser('link', 'blcHTMLLink');
