/*
  jQuery Coda-Slider v1.1 - http://www.ndoherty.com/coda-slider

  Copyright (c) 2007 Niall Doherty

  Inspired by the clever folks at http://www.panic.com/coda
  Many thanks to Gian Carlo Mingati. Coda-Slider is a heavily modified version of his slideViewer, which can be found at  http://www.gcmingati.net/wordpress/wp-content/lab/jquery/imagestrip/imageslide-plugin.html

  Requirements:
  -  jQuery 1.2 ... available via  http://www.jquery.com
  -  jQuery easing plugin (1.2) ... available via  http://gsgd.co.uk/sandbox/jquery/easing/
  - jQuery easing compatability plugin ... available via  http://gsgd.co.uk/sandbox/jquery/easing/
  - CSS included in index.html
*/

jQuery(function(){
  jQuery("div.csw").prepend("<p class='loading'>Loading...<br /><img src='images/ajax-loader.gif' alt='loading...'/ ></p>");
});
var j = 0;
jQuery.fn.codaSlider = function(settings) {
   settings = jQuery.extend({
     easeFunc: "expoinout",
     easeTime: 750,
     toolTip: false
  }, settings);
  return this.each(function(){
    var container = jQuery(this);
    // Remove the preloader gif...
    container.find("p.loading").remove();
    // Self-explanatory...
    container.removeClass("csw").addClass("stripViewer");
    // Get the width of a panel, set from CSS...
    var panelWidth = container.find("div.panel").width();
    // panelCount gives us a count of the panels in the container...
    var panelCount = container.find("div.panel").size();
    // Calculate the width of all the panels when lined up end-to-end...
    var stripViewerWidth = panelWidth*panelCount;
    // Use the above width to specify the CSS width for the panelContainer element...
    container.find("div.panelContainer").css("width" , stripViewerWidth);
    // Set the navWidth as a multiple of panelCount to account for margin-right on each li
    var navWidth = panelCount*2;

    // Specify the current panel.
    // If the loaded URL has a hash (cross-linking), we're going to use that hash to give the slider a specific starting position...
    if (location.hash && parseInt(location.hash.slice(1)) <= panelCount) {
      var cPanel = parseInt(location.hash.slice(1));
      var cnt = - (panelWidth*(cPanel - 1));
      jQuery(this).find("div.panelContainer").css({ left: cnt });
    // Otherwise, we'll just set the current panel to 1...
    } else {
      var cPanel = 1;
    };

    // Create appropriate nav
    container.each(function(i) {

      // Create the Left and Right arrows
      jQuery(this).before("<div class='stripNavL' id='stripNavL" + j + "'><a href='#'>Left</a><\/div>");
      jQuery(this).after("<div class='stripNavR' id='stripNavR" + j + "'><a href='#'>Right</a><\/div>");

      // Create the Tabs
      jQuery(this).before("<div class='stripNav' id='stripNav" + j + "'><ul><\/ul><\/div>");
      jQuery(this).find("div.panel").each(function(n) {
            jQuery("div#stripNav" + j + " ul").append("<li class='tab" + (n+1) + "'><a href='#" + (n+1) + "'>" + jQuery(this).attr("title") + "<\/a><\/li>");
      });

      // Tab nav
      jQuery("div#stripNav" + j + " a").each(function(z) {
        // Figure out the navWidth by adding up the width of each li
        navWidth += jQuery(this).parent().width();
        // What happens when a nav link is clicked
        jQuery(this).bind("click", function() {
          jQuery(this).addClass("current").parent().parent().find("a").not(jQuery(this)).removeClass("current"); // wow!
          var cnt = - (panelWidth*z);
          cPanel = z + 1;
          jQuery(this).parent().parent().parent().next().find("div.panelContainer").animate({ left: cnt}, settings.easeTime, settings.easeFunc);
        });
      });

      // Left nav
      jQuery("div#stripNavL" + j + " a").click(function(){
        if (cPanel == 1) {
          var cnt = - (panelWidth*(panelCount - 1));
          cPanel = panelCount;
          jQuery(this).parent().parent().find("div.stripNav a.current").removeClass("current").parent().parent().find("li:last a").addClass("current");
        } else {
          cPanel -= 1;
          var cnt = - (panelWidth*(cPanel - 1));
          jQuery(this).parent().parent().find("div.stripNav a.current").removeClass("current").parent().prev().find("a").addClass("current");
        };
        jQuery(this).parent().parent().find("div.panelContainer").animate({ left: cnt}, settings.easeTime, settings.easeFunc);
        // Change the URL hash (cross-linking)...
        location.hash = cPanel;
        return false;
      });

      // Right nav
      jQuery("div#stripNavR" + j + " a").click(function(){
        if (cPanel == panelCount) {
          var cnt = 0;
          cPanel = 1;
          jQuery(this).parent().parent().find("div.stripNav a.current").removeClass("current").parent().parent().find("a:eq(0)").addClass("current");
        } else {
          var cnt = - (panelWidth*cPanel);
          cPanel += 1;
          jQuery(this).parent().parent().find("div.stripNav a.current").removeClass("current").parent().next().find("a").addClass("current");
        };
        jQuery(this).parent().parent().find("div.panelContainer").animate({ left: cnt}, settings.easeTime, settings.easeFunc);
        // Change the URL hash (cross-linking)...
        location.hash = cPanel;
        return false;
      });

      // Same-page cross-linking
      jQuery("a.cross-link").click(function(){
        jQuery(this).parents().find(".stripNav ul li a:eq(" + (parseInt(jQuery(this).attr("href").slice(1)) - 1) + ")").trigger('click');
      });

      // Set the width of the nav using the navWidth figure we calculated earlier. This is so the nav can be centred above the slider
      jQuery("div#stripNav" + j).css("width" , navWidth);

      // Specify which tab is initially set to "current". Depends on if the loaded URL had a hash or not (cross-linking).
      if (location.hash && parseInt(location.hash.slice(1)) <= panelCount) {
        jQuery("div#stripNav" + j + " a:eq(" + (location.hash.slice(1) - 1) + ")").addClass("current");
      } else {
        jQuery("div#stripNav" + j + " a:eq(0)").addClass("current");
      }

    });

    j++;
  });
};