docs/v1.9.1/navtree_hack.js

// navtree functions created by doxygen have been overloaded in this file and
// should be loaded after the navtree.js file is loaded in header.html
// The changes below are borrowed primarily from the Eigen documentation page
// (https://github.com/bravegag/eigen-magma/blob/master/doc/eigen_navtree_hacks.js)

// Overloaded to save the root node into global_navtree_object
var global_navtree_object;
function initNavTree(toroot,relpath)
{
  var o = new Object();
  global_navtree_object = o; // <- we added this line
  o.toroot = toroot;
  o.node = new Object();
  o.node.li = document.getElementById("nav-tree-contents");
  o.node.childrenData = NAVTREE;
  o.node.children = new Array();
  o.node.childrenUL = document.createElement("ul");
  o.node.getChildrenUL = function() { return o.node.childrenUL; };
  o.node.li.appendChild(o.node.childrenUL);
  o.node.depth = 0;
  o.node.relpath = relpath;
  o.node.expanded = false;
  o.node.isLast = true;
  o.node.plus_img = document.createElement("img");
  o.node.plus_img.src = relpath+"ftv2pnode.png";
  o.node.plus_img.width = 16;
  o.node.plus_img.height = 22;

  if (localStorageSupported()) {
    var navSync = $('#nav-sync');
    if (cachedLink()) {
      showSyncOff(navSync,relpath);
      navSync.removeClass('sync');
    } else {
      showSyncOn(navSync,relpath);
    }
    navSync.click(function(){ toggleSyncButton(relpath); });
  }

  navTo(o,toroot,window.location.hash,relpath);

  $(window).bind('hashchange', function(){
     if (window.location.hash && window.location.hash.length>1){
       var a;
       if ($(location).attr('hash')){
         var clslink=stripPath($(location).attr('pathname'))+':'+
                               $(location).attr('hash').substring(1);
         a=$('.item a[class$="'+clslink+'"]');
       }
       if (a==null || !$(a).parent().parent().hasClass('selected')){
         $('.item').removeClass('selected');
         $('.item').removeAttr('id');
       }
       var link=stripPath2($(location).attr('pathname'));
       navTo(o,link,$(location).attr('hash'),relpath);
     } else if (!animationInProgress) {
       $('#doc-content').scrollTop(0);
       $('.item').removeClass('selected');
       $('.item').removeAttr('id');
       navTo(o,toroot,window.location.hash,relpath);
     }
  })

  $(window).load(showRoot);
}

// Overloaded to automatically expand the selected node
function selectAndHighlight(hash,n)
{
  var a;
  if (hash) {
    var link=stripPath($(location).attr('pathname'))+':'+hash.substring(1);
    a=$('.item a[class$="'+link+'"]');
  }
  if (a && a.length) {
    a.parent().parent().addClass('selected');
    a.parent().parent().attr('id','selected');
    highlightAnchor();
  } else if (n) {
    $(n.itemDiv).addClass('selected');
    $(n.itemDiv).attr('id','selected');
  }
  if ($('#nav-tree-contents .item:first').hasClass('selected')) {
    $('#nav-sync').css('top','30px');
  } else {
    $('#nav-sync').css('top','5px');
  }
  expandNode(global_navtree_object, n, true, true); // <- we added this line
  showRoot();
}

// Modified to remove the root node
function createIndent(o,domNode,node,level)
{
  var level=-2;        // <- this line was updated from -1 to -2
  var n = node;
  while (n.parentNode) { level++; n=n.parentNode; }
  if (node.childrenData) {
    var imgNode = document.createElement("img");
    imgNode.style.paddingLeft=(16*level).toString()+'px';
    imgNode.width  = 16;
    imgNode.height = 22;
    imgNode.border = 0;
    node.plus_img = imgNode;
    node.expandToggle = document.createElement("a");
    node.expandToggle.href = "javascript:void(0)";
    node.expandToggle.onclick = function() {
      if (node.expanded) {
        $(node.getChildrenUL()).slideUp("fast");
        node.plus_img.src = node.relpath+"arrowright.png";
        node.expanded = false;
      } else {
        expandNode(o, node, false, false);
      }
    }
    node.expandToggle.appendChild(imgNode);
    domNode.appendChild(node.expandToggle);
    imgNode.src = node.relpath+"arrowright.png";
  } else {
    var span = document.createElement("span");
    span.style.display = 'inline-block';
    span.style.width   = 16*(level+1)+'px';
    span.style.height  = '22px';
    span.innerHTML = '&#160;';
    domNode.appendChild(span);
  }
}

$(document).ready(function() {

  (function (){ // wait until the first "selected" element has been created
    try {

      // this line will triger an exception if there is no #selected element, i.e., before the tree structure is complete.
      document.getElementById("selected").className = "item selected";

      // ok, the default tree has been created, we can keep going...
      // we want to expand the function list by default
      expandNode(global_navtree_object, global_navtree_object.node.children[0].children[0], true, true);

      // Hide the "modules" node
      $(document.getElementsByClassName('modules.html')[0]).parent().parent().css({display:"none"});

    } catch (err) {
      setTimeout(arguments.callee, 10);
    }
  })();
});