/* $Id: auto_image_handling.js,v 1.1.2.3 2008/04/24 18:31:16 snpower Exp $ */

// Image Node Auto-Format with Auto Image Grouping.
// Original version by Steve McKenzie.
// Altered by Stella Power for jQuery version.

if (Drupal.jsEnabled) {
  $(document).ready(function lightbox2_image_nodes() {

    var settings = Drupal.settings.lightbox2;

    // Don't do it on the image assist popup selection screen.
    var img_assist = document.getElementById("img_assist_thumbs");
    if (!img_assist) {

      // Select the enabled image types.
      lightbox2_init_triggers(settings.trigger_lightbox_classes, "lightbox_ungrouped");
      lightbox2_init_triggers(settings.custom_trigger_classes, "lightbox_ungrouped", true);
      lightbox2_init_triggers(settings.trigger_lightbox_group_classes, "lightbox");
      lightbox2_init_triggers(settings.trigger_slideshow_classes, "lightshow");

    }
  });

  function lightbox2_init_triggers(classes, rel_type, custom_class) {
    var settings = Drupal.settings.lightbox2;

    $("a["+classes+"]").each(function(i) {

      if ((!settings.disable_for_gallery_lists && !settings.disable_for_acidfree_gallery_lists) || (!$(this).parents(".galleries").length && !$(this).parents(".acidfree-folder").length && !$(this).parents(".acidfree-list").length) || ($(this).parents(".galleries").length && !settings.disable_for_gallery_lists) || (($(this).parents(".acidfree-folder").length || $(this).parents(".acidfree-list").length) && !settings.disable_for_acidfree_gallery_lists)) {

        var child = $(this).children();

        // Ensure the child has a class attribute we can work with.
        if ($(child).attr("class").length) {

          // Set the alt text.
          var alt = $(child).attr("alt");
          if (!alt) {
            alt = "";
          }

          // Set the image node link text.
          var link_text = settings.node_link_text;
          var link_target  = "";
          if (settings.node_link_target != 0) {
            link_target = 'target="'+ settings.node_link_target +'"';
          }

          // Set the rel attribute.
          var rel = "lightbox";
          if (rel_type != "lightbox_ungrouped") {
            rel = rel_type + "[" + $(child).attr("class") + "]";
          }

          // Set the basic href attribute - need to ensure there's no language
          // string (e.g. /en) prepended to the URL.
          var href = $(child).attr("src");
          var orig_href = $(this).attr("href");
          var pattern = new RegExp(settings.file_path);
          if (orig_href.match(pattern)) {
            var lang_pattern = new RegExp(settings.base_path + "\\w\\w\\/");
            orig_href = orig_href.replace(lang_pattern, settings.base_path);
          }

          // Handle flickr images.
          if ($(child).attr("class").match("flickr-photo-img")
            || $(child).attr("class").match("flickr-photoset-img")) {
            href = $(child).attr("src").replace("_s", "").replace("_t", "").replace("_m", "").replace("_b", "");
            if (rel_type != "lightbox_ungrouped") {
              rel = rel_type + "[flickr]";
              if ($(child).parents("div.block-flickr").attr("class")) {
                var id = $(child).parents("div.block-flickr").attr("id");
                rel = rel_type + "["+ id +"]";
              }
            }
          }

          // Handle "image-img_assist_custom" images.
          else if ($(child).attr("class").match("image-img_assist_custom")) {
            // Image assist uses "+" signs for spaces which doesn't work for
            // normal links.
            orig_href = orig_href.replace(/\+/, " ");
            href = orig_href;
          }

          // Handle "inline" images.
          else if ($(child).attr("class").match("inline")) {
            href = orig_href;
          }

          // Handle gallery2 block images.
          else if ($(child).attr("class").match("ImageFrame_image")) {
            var thumb_id = parse_url(href, "g2_itemId");
            var new_id = parse_url(orig_href, "g2_itemId");
            if (new_id && thumb_id) {
              var pattern = new RegExp("g2_itemId="+thumb_id);
              var replacement = "g2_itemId="+ new_id;
              var href = href.replace(pattern, replacement);
            }
          }


          // Set the href attribute.
          else if (settings.image_node_sizes != '()') {
            href = $(child).attr("src").replace(new RegExp(settings.image_node_sizes), ((settings.display_image_size == "")?settings.display_image_size:"."+ settings.display_image_size)).replace(/(image\/view\/\d+)(\/\w*)/, ((settings.display_image_size == "")?"$1/_original":"$1/"+ settings.display_image_size));
            if (rel_type != "lightbox_ungrouped") {
              rel = rel_type + "[node_images]";
              if ($(child).parents("div.block-image").attr("class")) {
                var id = $(child).parents("div.block-image").attr("id");
                rel = rel_type + "["+ id +"]";
              }
            }
          }

          // Modify the image url.
          var img_title = $(child).attr("title");
          if (!img_title) {
            img_title = $(this).attr("title");
            $(child).attr({title: img_title});
          }
          if (!custom_class) {
            $(this).attr({
              rel: rel,
              title: alt + "<br /><a href=\"" + orig_href + "\" id=\"node_link_text\" "+ link_target +" >"+ link_text + "</a>",
              href: href
            });
          }
          else {
            $(this).attr({
              rel: rel,
              title: alt,
              href: orig_href
            });
          }
        }
      }

    });

  }

  function parse_url(url, param) {
    param = param.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
    url = url.replace(/&amp;/, "&");
    var regexS = "[\\?&]"+param+"=([^&#]*)";
    var regex = new RegExp(regexS);
    var results = regex.exec(url);
    if (results == null) {
      return "";
    }
    else {
      return results[1];
    }
  }
}