map->polyline ) ) {
$polyline = $activity->map->polyline;
} elseif ( ! empty( $activity->map->summary_polyline ) ) {
$polyline = $activity->map->summary_polyline;
}
if ( empty( $polyline ) ) {
// No polyline provided.
return '';
}
if ( ! $height || ! $width ) {
$height = 320;
$width = 480;
}
$url = $this->build_url( $polyline, $height, $width, $markers );
$url_len = strlen( $url );
if ( $url_len > self::$max_chars ) {
// Need to reduce the polyline b/c it's too big.
$polyline = $this->reduce_polyline( $url_len - $this->polyline_length( $polyline ), $polyline );
$url = $this->build_url( $polyline, $height, $width, $markers );
}
$title_attr = $title ? " title='" . esc_attr( $title ) . "'" : '';
return "
";
}
/**
* Build a Mapbox Static Map URL.
*
* @param string $polyline Polyline string to overlay.
* @param int $height Height of map in pixels.
* @param int $width Width of map in pixels.
* @param bool $markers Display start and finish markers.
* @return string Image URL.
* @author Justin Foell
* @since 2.11
*/
private function build_url( $polyline, $height = 320, $width = 480, $markers = false ) {
$url = 'https://api.mapbox.com/styles/v1/mapbox/outdoors-v11/static/';
$size = "auto/{$width}x{$height}@2x";
$token = WPStrava::get_instance()->settings->mapbox_token;
$path = array();
if ( $markers ) {
$points = $this->decode_start_finish( $polyline );
$path[] = "pin-s+008000({$points['start'][1]},{$points['start'][0]})";
$path[] = "pin-s+ff0000({$points['finish'][1]},{$points['finish'][0]})";
}
// polyline must be URL encoded https://stackoverflow.com/a/65523379/2146022
$url_polyline = rawurlencode( $polyline );
$path[] = "path-2+ff0000({$url_polyline})";
$url .= implode( ',', $path ) . "/{$size}?access_token={$token}";
return $url;
}
/**
* Get the length of a polyline after encoding.
*
* @param mixed $polyline Polyline string.
* @return int Encoded polyline string length.
* @author Justin Foell
* @since 2.11
*/
protected function polyline_length( $polyline ) {
return strlen( rawurlencode( $polyline ) );
}
}