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path: root/data/empathy-log-window.html
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<html>
  <head>
    <style type="text/css">
html, body, div, p {
  /* FIXME: how do we set the application font? */
  padding: 0;
  margin: 0;
}

div.row {
  margin-left: 1em;
}

div.row p {
  display: inline;
  white-space: pre-wrap;
}

span.open:after {
  content: "\25BE";
  margin-right: 2px;
}

span.closed:after {
  content: "\25B8";
  margin-right: 2px;
}
    </style>
    <script type="text/javascript">
function filterNodes (node, tagName)
{
  var out = new Array();

  for (var i = 0; i < node.childNodes.length; i++)
    {
      var elem = node.childNodes[i];

      if (elem.tagName == tagName)
        out.push(elem);
    }

  return out;
}

function getNodes(node)
{
  return filterNodes(node, 'DIV');
}

function getContent(node)
{
  return filterNodes(node, 'P')[0];
}

function getToggle(node)
{
  return filterNodes(node, 'SPAN')[0];
}

function toggleExpander(node, open)
{
  var toggle = getToggle(node);
  var display;
  var nodes;

  if (open)
    {
      toggle.setAttribute('class', 'open');
      display = 'block';
    }
  else
    {
      toggle.setAttribute('class', 'closed');
      display = 'none';
    }

  nodes = getNodes(node);

  for (var i = 0; i < nodes.length; i++)
    nodes[i].style.display = display;
}

function insertRow (path, text)
{
  var treeview = document.getElementById('treeview');
  var parentnode = treeview;
  var i;

  // walk the tree
  for (i = 0; i < path.length - 1; i++)
    parentnode = getNodes(parentnode)[path[i]];

  // create a new node
  var newnode = document.createElement('div');
  newnode.setAttribute('class', 'row');

  // insert the new node into the tree
  var nodes = getNodes(parentnode);

  // console.log("path = " + path);
  // console.log("i = " + i + ", path[i] = " + path[i] + ", nodes.length = " +
  //    nodes.length);

  if (path[i] >= nodes.length)
    parentnode.appendChild(newnode);
  else
    parentnode.insertBefore(newnode, nodes[path[i]]);

  // add an expander
  var toggle = document.createElement('span');
  newnode.appendChild(toggle);
  toggle.setAttribute('class', 'closed');
  toggle.style.display = 'none';

  toggle.onclick = function (e)
    {
      if (toggle.getAttribute('class') == 'closed')
        toggleExpander(newnode, true);
      else
        toggleExpander(newnode, false);
    };
  
  var contents = document.createElement('p');
  newnode.appendChild(contents);
  contents.innerHTML = text;

  // if the node is not a top-level node, hide it
  if (parentnode != treeview)
    newnode.style.display = 'none';
}

function changeRow (path, text)
{
  var treeview = document.getElementById('treeview');
  var node = treeview;

  // console.log("path = " + path + ", text = '" + text + "'");

  // walk the tree
  for (var i = 0; i < path.length; i++)
    node = getNodes(node)[path[i]];

  // set the contents
  var contents = getContent(node);
  contents.innerHTML = text;
}

function deleteRow (path)
{
  var treeview = document.getElementById('treeview');
  var node = treeview;

  // walk the tree
  for (var i = 0; i < path.length; i++)
    node = getNodes(node)[path[i]];

  node.parentNode.removeChild(node);
}

function reorderRows (path, new_order)
{
  var treeview = document.getElementById('treeview');
  var node = treeview;

  // walk the tree
  for (var i = 0; i < path.length; i++)
    node = getNodes(node)[path[i]];

  var nodes = getNodes(node);

  // remove all the nodes from the DOM
  for (var i = 0; i < nodes.length; i++)
    node.removeChild(nodes[i]);

  // put them back in the new order
  // For reference: new_order[new_pos] = old_pos
  for (var i = 0; i < nodes.length; i++)
    node.appendChild(nodes[new_order[i]]);
}

function hasChildRows (path, has_children)
{
  var treeview = document.getElementById('treeview');
  var node = treeview;

  // walk the tree
  for (var i = 0; i < path.length; i++)
    node = getNodes(node)[path[i]];

  var toggle = getToggle(node);

  if (has_children)
    toggle.style.display = 'inline';
  else
    toggle.style.display = 'none';
}
    </script>
  </head>

  <body>
    <div id="treeview">
    </div>
  </body>
</html>