/**
* Filter the_content, possibly adding Tweet button(s)
*
* @since 1.0.0
*
* @param string $content content of the current post
*
* @return string $content content of the current post, possibly with Tweet button markup added
*/
public static function contentFilter($content)
{
// do not include Tweet button(s) in an autogenerated excerpt
// get_the_excerpt filter calls wp_trim_excerpt() at priority 10 which triggers the_content filter on an empty excerpt string
if (doing_filter('get_the_excerpt')) {
return $content;
}
$options = static::getOption();
if (isset($options['position'])) {
$position = $options['position'];
unset($options['position']);
$tweet_button = \Twitter\WordPress\Shortcodes\Share::shortcodeHandler($options);
if ($tweet_button) {
// wrap in newlines to preserve content scanners looking for adjacent content on its own line
$tweet_button = "\n" . $tweet_button . "\n";
if ('before' === $position) {
return $tweet_button . $content;
} else {
if ('after' === $position) {
return $content . $tweet_button;
} else {
if ('both' === $position) {
return $tweet_button . $content . $tweet_button;
}
}
}
}
}
return $content;
}
