// $Id: functions.js,v 1.1.6.2 2008/12/05 11:25:00 wwalc Exp $

function preinit() {

  // Initialize

  tinyMCE.setWindowArg('mce_windowresize', false);

}

function init() {

  window.focus();

  loadCategories(null);

}

/**

 * loadCategories()

 * @param obj parent Object

 **/

function loadCategories(obj) {

  var params = '';

  var vid = '-1';

  var top = 75;

  var objTop;

  if (obj != null) {

    var fSel = $('#browse_sel_0_sel');

    if (fSel !== null) {

      vid = $(fSel).get(0).value;

    }

    if ($(obj).attr('id') != 'browse_sel_0_sel') {

      params = '&ltc-term-id=' + $(obj).get(0).value;

    }

    try

    {

      objTop = $(obj).attr('id').match(/_(\d+)_sel/);

      top += (objTop[1] * 17);

    }

    catch (e) {

      top += 0;

    }

  }

  params = 'ltc-type=linktocontent_node&ltc-vocab-id=' + vid + params;

  $('#statusImg').css({top: top + 'px'}).show();

  $.ajax({

    type: "POST",

    url: _getBaseHref() + 'index.php?q=linktocontent',

    data: params,

    error: function(xml, msg, exc) {

      $('#statusImg').hide();

      alert('Error: ' + msg + '\n' + xml.responseText);

    },

    success: function(data){

      try {

        var results = eval('(' + data + ');');

        _clearNodeList();

        if ((obj == null) || ($(obj).get(0).value > -1)) {

          if (_fillDropdown(obj, results)) {

            window.resizeBy(0, 17);

          }

        }

        _fillNodelist(results);

      }

      catch (e) {

        alert('Error on retrieving data from module.\n' + e.name + '\n' + e.message);

      } 

      finally {

        $('#statusImg').hide();

      }

    }});

}

function insertAction() {

  if (selectedNode == null) {

    return;

  }

  var inst = tinyMCE.getInstanceById(tinyMCE.getWindowArg('editor_id'));

  var elm = inst.getFocusElement();

  elm = tinyMCE.getParentElement(elm, "a");

  tinyMCEPopup.execCommand("mceBeginUndoLevel");

  // Create new anchor elements

  if (elm == null) {

    var nid = selectedNode.cells[0].firstChild.nodeValue;

    var insertText = selectedNode.cells[1].firstChild.nodeValue;

    if (inst.selection.getSelectedText().length == 0) {

      tinyMCEPopup.execCommand("mceInsertContent", false,

        '<a href="' + nid + '">' + insertText + '</a>');

    }

    else {

       tinyMCEPopup.execCommand("mceInsertContent", false,

        '<a href="' + nid + '">' + inst.selection.getSelectedHTML() + '</a>');

    } // end (getSelectedText == 0)

  }

  else {

    elm.setAttribute("mce_href", selectedNode.cells[0].firstChild.nodeValue);

    // Refresh in old MSIE

    if (tinyMCE.isMSIE5)

      elm.outerHTML = elm.outerHTML;

  }

  tinyMCE._setEventsEnabled(inst.getBody(), false);

  tinyMCEPopup.execCommand("mceEndUndoLevel");

  tinyMCEPopup.close();

}

function loadScript(url) {

  $('head', document).append('<script type="text/javascript" src="' + url + '"></script>');

}

/**

 * returns the base drupal path

 * @access public

 **/

function _getBaseHref() {

  var url = baseUrl.substring(0, baseUrl.indexOf('modules/'));

  if (url.indexOf('sites/') > -1)

    url = url.substring(0, url.indexOf('sites/'));

  return url;

}

// dropdown functions

/**

 *

 * @access public

 * @return void

 **/

function _createDropdown(obj){

  var dropdown;

  var elemname = '';

  if (obj == null) {

    elemname = 'browse_sel_-1';

  }

  else {

    elemname = $(obj).parent().attr('id');

    _removeDescendant($(obj));

  }

  var level = parseInt(elemname.substring(elemname.lastIndexOf("_") + 1, elemname.length)) + 1;

  var elemBase = elemname.substring(0, elemname.lastIndexOf("_") + 1);

  // create surrounding <div>

  var sel_div = $('<div></div>');

  $(sel_div).attr('name', elemBase + level);

  $(sel_div).attr('id', elemBase + level);

  $(sel_div).attr('style', 'display: block; margin: 1px 0; padding: 0; border: 0;');

  // create <select>

  var select = $('<select></select>');

  $(select).attr('size', 1);

  $(select).attr('name', elemBase + level + '_sel');

  $(select).attr('id', elemBase + level + '_sel');

  // add event handler

  $(select).change(function() {

    _removeDescendant($(this).parent());

    _clearNodeList();

    loadCategories($(this));

  });

  // create image (only if level > 0)

  if (level > 0) {

    var img = $('<img />');

    $(img).attr('id', elemname.substring(0, elemname.lastIndexOf('_') + 1) + level + '_img');

    $(img).attr('alt', '');

    $(img).attr('src', 'images/descendant.gif');

    // extra margin for IE

    $(img).css({margin: '0px 2px', border: 0});

    $(img).css({marginLeft: String((parseInt(level) - 1) * 14) + 'px', marginRight: '2px'});

    $(sel_div).append($(img));

  }

  $(sel_div).append($(select));

  $(sel_div).hide();

  $('#form_browse').append($(sel_div));

  $(sel_div).show('slow');

  return select;

}

/**

 * _fillDropdown

 * @return true if a dropdown was inserted

 **/

function _fillDropdown(obj, results){

  if (results.categories != false) {

    var select = _createDropdown(obj);

    //<!-- linktonode START -->

    $(select).addOption(-1, FCKLang.DlgDrupalChooseCategory);

    //<!-- linktonode END -->

    for (key in results.categories)

      $(select).addOption(results.categories[key].tid, results.categories[key].title);

    return true;

  }

  return false;

}

/**

* remove "child" elements

**/

function _removeDescendant(elem) {

  if (elem == null)

    return;

  $(elem).next().each(

    function() {

      _removeDescendant($(this));

      window.resizeBy(0, -17);

      $(this).hide('slow').remove();

    }

  );

}

// nodelist functions

var selectedNode = null;

function _fillNodelist(results) {

  if ((results == null) || (results.nodes == null) || (results.nodes == false))

    return;

  for (key in results.nodes) {

    _addNodeToList(results.nodes[key]);

  }

}

function _clearNodeList() {

  $('#nodelist tbody tr').each(

    function() {

      $(this).remove();

    }

  );

}

function selectRow(row) {

  if (!row) {

    return;

  }

  $('#nodelist tbody tr').each(function() { 

    $(this).css({background: '#ffffff'}); 

    selectedNode = null; 

  });

  selectedNode = row;

  $(row).css({background: '#dadfe9'});

}

function _addNodeToList(node){

  var tr = $('<tr></tr>').appendTo('#nodelist tbody');

  tr.hover(

    function() {

      if (selectedNode != this) {

        $(this).css({background: '#cecece'});

      }

    },

    function() {

      if (selectedNode != this) {

        $(this).css({background: '#ffffff'});

      }

    }

  );

  tr.click(function() {

    selectRow(this);

  });

  $('<td class="nid">' + node.href + '</td>').appendTo(tr);

  $('<td>' + node.title + '</td>').appendTo(tr);

  $('<td>' + node.date + '</td>').appendTo(tr);

  $('<td>' + node.author + '</td>').appendTo(tr);

  $('<td class="nid">' + node.orig_href + '</td>').appendTo(tr);

}

/**

 * make the nodelist accessible by keyboard

 **/

$('.accessible').keypress(function(e) {

  switch (e.keyCode) {

    case 39:

    case 40: // move selection down

      if (selectedNode == null)

        selectedNode = $('#nodelist tbody tr').get(0);

      else

        selectedNode = $(selectedNode).next('tr').get(0);

      selectRow(selectedNode);

      break;

    case 37:

    case 38: // move selection up

      if (selectedNode == null)

        selectedNode = $('#nodelist tbody tr').get($('#nodelist tbody tr').length - 1);

      else

        selectedNode = $(selectedNode).prev('tr').get(0);

      selectRow(selectedNode);

    break;

  }

});

// options

$.fn.addOption = function()

{

  if(arguments.length == 0)

    return this;

  // select option when added? default is false

  var selectOption = false;

  // multiple items

  var multiple = false;

  if(typeof arguments[0] == "object")

  {

    multiple = true;

    var items = arguments[0];

  }

  if(arguments.length >= 2)

  {

    if(typeof arguments[1] == "boolean")

      selectOption = arguments[1];

    else if(typeof arguments[2] == "boolean")

      selectOption = arguments[2];

    if(!multiple)

    {

      var value = arguments[0];

      var text = arguments[1];

    }

  }

  this.each(

    function()

    {

      if(this.nodeName.toLowerCase() != "select")

        return;

      if(multiple)

      {

        for(v in items)

        {

          $(this).addOption(v, items[v], selectOption);

        }

      }

      else

      {

        var option = document.createElement("option");

        option.value = value;

        option.text = text;

        this.options.add(option);

      }

      if(selectOption)

      {

        this.options[this.options.length-1].selected = true;

      }

    }

  )

  return this;

}

$.fn.removeOption = function()

{

  if(arguments.length == 0)

    return this;

  if(typeof arguments[0] == "string")

    var value = arguments[0];

  else if(typeof arguments[0] == "number")

    var index = arguments[0];

  else

    return this;

  this.each(

    function()

    {