[slideshow] shortcode shared with slideshow-gallery-pro

You don’t need to change the plugins. You can just register your own shortcodes:

add_action( 'init', 'my_register_shortcodes' );

function my_register_shortcodes() {

	add_shortcode( 'ngslideshow', 'ng_slideshow_function_name_here' );
	add_shortcode( 'gpslideshow', 'gp_slideshow_function_name_here' );
}

The reasons I didn’t register the shortcodes in my own routines were multi-fold.

1. I wanted to make people aware of the problem
2. I didn’t really want to develop a workaround as that could end up being more effort than it’s worth
3. I didn’t know how to code the second parameter given that both of the plugins were written as classes

But now I have persevered.
For the NextGen slideshow I wrote one line of code
add_shortcode( 'ngslideshow', 'NextGEN_shortcodes::show_slideshow' );

For slideshow gallery pro, I didn’t know what name to use for the ’embed’ function which is defined in class Gallery extends GalleryPlugin

So I wrote the following

add_shortcode( 'gpslideshow', 'bw_gp_slideshow' );

function bw_gp_slideshow( $atts ) {
  $Gallery = new Gallery();
  $content = $Gallery->embed( $atts );
  return $content;
}

As you can see I haven’t tested to see if the method exists and the plugins are enabled. But at least I have got them working without the hacks. So thanks for that.

gpslideshow is an official shortcode from now on ??

Thanks. I had a bit more fun with slideshow-gallery-pro last weekend – a combination of user error AND poor coding.
You can read about it at
https://www.bobbingwidewebdesign.com/2011/07/17/help-needed-with-oik-at-wordcampuk/

I have subsequently changed my oik plugin so that I can I avoid the problem in the future.

add_shortcode( 'gpslides', 'bw_gp_slideshow' );

function bw_gp_slideshow( $atts, $hmm=NULL, $tag=NULL ) {
  if ( 'the_content' == current_filter() )
  {
    $Gallery = new Gallery();
    $content = $Gallery->embed( $atts );
  }
  else
    $content = '[' . $tag . ']';
  return $content;
}

The reason I did this was to prevent the shortcode from being expanded when do_shortcodes is invoked for ‘the_title’

PS. IMHO I think there could be some improvements in WordPress’s shortcode handling.