shadowbox.tpl.php file

you mean a tpl to use for iframed shadowbox content? So that one could have a modal version of the content for viewing within the shadowbox window?

you can add as many tpl's as you like to your theme, you just need to add a template suggestion. Example:

function MYTHEME_preprocess_page(&$vars) {
  // a global to allow for setting modal display via php
  global $shadowbox_load_modal;
  // check for alternate page-node-XX-shadowbox.tpl.php files, allowing override of page tpl for modal windows
  if ($vars['node']->nid != "" && module_exists('shadowbox')) {
    $vars['template_files'][] = "page-node-" . $vars['node']->nid . "-shadowbox";
  }
  // check for a query string of ?load_mode=modal and use the page-shadowbox-modal.tpl.php file for rendering
  //   EX: <a href="/node/22?load_mode=modal"... would open with this tpl.php
  // we also check for our global $shadowbox_load_modal to see if it has been set somewhere.
  else if ($_GET['load_mode'] == 'modal' || $shadowbox_load_modal == TRUE) {
    $vars['template_files'][] = 'page-shadowbox-modal';
  }
}

Let me know if that solves your issue.

--
Los Angeles Web Design and development for Drupal.

I am not too sure of a way to really do what you are asking. What I suggest is creating content type called say, "Shadowbox Page" (namespace "shadowbox_page") and you can apply a custom theme to those pages.

function MYTHEME_preprocess_page(&$vars) {
  // allow template files for page-node-[node_type_namespace].tpl.php
  if ($vars['node']->type != "") {
    $vars['template_files'][] = "page-node-" . $vars['node']->type;
  }
}

Then just create a page-node-shadowbox_page.tpl.php and all of these pages will show in a shadowbox. Unfortunately I don't know of any way for javascript to essentially tell PHP which template to use, which is what you are kind of asking for.

--
Los Angeles Web Design and development for Drupal.

Actually the more I think about it, I bet we could just use some jQuery to tack on the variable in the $_GET whenever the links is set to open in a shadowbox. That would keep you from having to alter your links via hard code. Let me know if that seems like an adequate solution for you.

--
Los Angeles Web Design and development for Drupal.

Some variation of the code I used in #770990: Possible to exclude certain elements? (views galleriffic compatibility problem) should work:

$(document).ready(function() {
  $(".MYSELECTOR, .MYOTHERSELECTOR, #ANOTHERCOOLSELECTOR").each(function() {
    this.href += "?load_mode=modal";
  });
});

--
Los Angeles Web Design and development for Drupal.

$(".button").each(function() {
  $(this).click(function(){
    // put something here
  });
});

Now I am not completely sure what it is your button is programmed to do, so I don't know what to put in the middle of that code. Hopefully this should give you some headway on usage however.

--
Los Angeles Web Design and development for Drupal.