// The "Dynano" Javascript framework. Similar in syntax to JQuery but highly Enano-specific (TinyMCE, etc).

var $ = function(id)

{

  return new DNobj(id);

}

var $dynano = $;

function DNobj(id)

{

  if ( id == undefined )

  {

    return {};

  }

  this.object = ( typeof(id) == 'object' ) ? id : document.getElementById(id);

  if ( !this.object )

  {

    console.warn('Dynano: requested object is bad. id parameter follows.');

    console.debug(id);

    this.object = false;

    return this;

  }

  if ( this.object.Dynano )

  {

    return this.object.Dynano;

  }

  this.object.Dynano = this;

  this.height = __DNObjGetHeight(this.object);

  this.width = __DNObjGetWidth(this.object);

  if ( this.object.tagName == 'TEXTAREA' && ( typeof(tinyMCE) == 'object' || typeof(tinyMCE_GZ) == 'object' ) )

  {

    this.object.dnIsMCE = 'no';

    this.switchToMCE = DN_switchToMCE;

    this.destroyMCE = DN_destroyMCE;

    this.getContent = DN_mceFetchContent;

    this.setContent = DN_mceSetContent;

    this.makeSwitchable = DN_makeSwitchableTA;

    this.isMCE = DN_isMCE;

  }

}

function __DNObjGetHeight(o) {

  return o.offsetHeight;

}

function __DNObjGetWidth(o) {

  return o.offsetWidth;

}

function addClass(obj, clsname)

{

  var cnt = obj.className;

  var space = ( (cnt + '').length > 0 ) ? ' ' : '';

  var cls = cnt + space + clsname;

  obj.className = cls;

}

function rmClass(obj, clsname)

{

  var cnt = obj.className;

  if ( cnt == clsname )

  {

    obj.className = '';

  }

  else

  {

    cnt = cnt.replace(clsname, '');

    cnt = trim(cnt);

    obj.className = cnt;

  }

}

function hasClass(obj, clsname)

{

  var cnt = obj.className;

  if ( !cnt )

    return false;

  if ( cnt == clsname )

    return true;

  cnt = cnt.split(' ');

  for ( var i in cnt )

    if ( cnt[i] == clsname )

      return true;

  return false;

}

function __DNObjGetLeft(obj) {

  var left_offset = obj.offsetLeft;

  while ((obj = obj.offsetParent) != null) {

    left_offset += obj.offsetLeft;

  }

  return left_offset;

}

function __DNObjGetTop(obj) {

  var left_offset = obj.offsetTop;

  while ((obj = obj.offsetParent) != null) {

    left_offset += obj.offsetTop;

  }

  return left_offset;

}

function DN_switchToMCE(performWikiTransform)

{

  if ( !this.object.id )

    this.object.id = 'textarea_' + Math.floor(Math.random() * 1000000);

  if ( !this.object.name )

    this.object.name = 'textarea_' + Math.floor(Math.random() * 1000000);

  // Updated for TinyMCE 3.x

  if ( performWikiTransform )

  {

    this.object.value = DN_WikitextToXHTML(this.object.value);

  }

  // If tinyMCE init hasn't been called yet, do it now.

  if ( !tinymce_initted )

  {

    console.info('$dynano().switchToMCE(): doing "exact"-type MCE init');

    enano_tinymce_options.mode = 'exact';

    enano_tinymce_options.elements = this.object.id;

    initTinyMCE();

    this.object.dnIsMCE = 'yes';

    return true;

  }

  else

  {

    console.info('$dynano().switchToMCE(): tinyMCE already loaded, calling mceAddControl');

    tinymce.EditorManager.execCommand("mceAddControl", true, this.object.id);

    this.object.dnIsMCE = 'yes';

  }

  return this;

}

function DN_destroyMCE(performWikiTransform)

{

  //if ( !this.object.dn_is_mce )

  //  return this;

  if ( this.object.id )

  {

    // TinyMCE 2.x

    // tinymce.EditorManager.removeMCEControl(this.object.name);

    // TinyMCE 3.x

    var ed = tinymce.EditorManager.getInstanceById(this.object.id);

    if ( ed )

    {

      if ( !tinymce.EditorManager.execCommand("mceRemoveEditor", false, this.object.id) )

        alert('could not destroy editor');

      if ( performWikiTransform )

      {

        this.object.value = DN_XHTMLToWikitext(this.object.value);

      }

    }

  }

  this.object.dnIsMCE = 'no';

  return this;

}

function DN_isMCE()

{

  return ( this.object.dnIsMCE == 'yes' );

}

function DN_mceFetchContent()

{

  if ( this.object.name )

  {

    var text = this.object.value;

    if ( tinymce.EditorManager.get(this.object.id) )

    {

      var editor = tinymce.EditorManager.get(this.object.id);

      text = editor.getContent();

    }

    return text;

  }

  else

  {

    return this.object.value;

  }

}

function DN_mceSetContent(text)

{

  if ( this.object.name )

  {

    this.object.value = text;

    if ( tinymce.EditorManager.get(this.object.id) )

    {

      var editor = tinymce.EditorManager.get(this.object.id);

      editor.setContent(text);

    }

  }

  else

  {

    this.object.value = text;

  }

}

var P_BOTTOM = 1;

var P_TOP = 2;

function DN_makeSwitchableTA(pos)

{

  if ( this.toggler )

    return false;

  if ( !pos )

    pos = P_BOTTOM;

  load_component('l10n');

  var cookiename = 'enano_editor_mode';

  var toggler = document.createElement('div');

  toggler.dynano = this;

  this.toggler = toggler;

  if ( !this.object.id )

    this.object.id = 'dynano_auto_' + Math.floor(Math.random() * 1000000);

  toggler.s_mode_text = $lang.get('editor_btn_wikitext');

  toggler.s_mode_graphical = $lang.get('editor_btn_graphical');

  toggler.set_text = function()

  {

    if ( this.dynano.object.dnIsMCE == 'yes' )

      this.dynano.destroyMCE();

    this.innerHTML = '';

    this.appendChild(document.createTextNode(this.s_mode_text + ' | '));

    var link = document.createElement('a');

    link.href = '#';

    link.onclick = function()

    {

      this.parentNode.set_graphical();

      return false;

    }

    link.appendChild(document.createTextNode(this.s_mode_graphical));

    this.appendChild(link);

    createCookie('enano_editor_mode', 'text', 365);

  }

  toggler.set_graphical = function()

  {

    this.dynano.switchToMCE();

    this.innerHTML = '';

    var link = document.createElement('a');

    link.href = '#';

    link.onclick = function()

    {

      this.parentNode.set_text();

      return false;

    }

    link.appendChild(document.createTextNode(this.s_mode_text));

    this.appendChild(link);

    this.appendChild(document.createTextNode(' | ' + this.s_mode_graphical));

    createCookie('enano_editor_mode', 'tinymce', 365);

  }

  toggler.style.styleFloat = 'right';

  toggler.style.cssFloat = 'right';

  if ( pos == P_BOTTOM )

  {

    insertAfter(this.object.parentNode, toggler, this.object);

  }

  else

  {

    this.object.parentNode.insertBefore(toggler, this.object);

  }

  if ( readCookie(cookiename) == 'tinymce' )

  {

    toggler.set_graphical();

  }

  else

  {

    toggler.set_text();

  }

}

function DN_WikitextToXHTML(text)

{

  return DN_AjaxGetTransformedText(text, 'xhtml');

}

function DN_XHTMLToWikitext(text)

{

  return DN_AjaxGetTransformedText(text, 'wikitext');

}

// AJAX to the server to transform text

function DN_AjaxGetTransformedText(text, to)

{

  // get an XHR instance

  var ajax = ajaxMakeXHR();

  var uri = stdAjaxPrefix + '&_mode=transform&to=' + to;

  var parms = 'text=' + ajaxEscape(text);

  try

  {

    ajax.open('POST', uri, false);

    ajax.setRequestHeader("Content-type", "application/x-www-form-urlencoded");

    // Setting Content-length in Safari triggers a warning

    if ( !is_Safari )

    {

      ajax.setRequestHeader("Content-length", parms.length);

    }

    ajax.send(parms);

    // async request, so if status != 200 at this point then we're screwed

    if ( ajax.readyState == 4 && ajax.status == 200 )

    {

      var response = String(ajax.responseText + '');

      if ( !check_json_response(response) )

      {

        handle_invalid_json(response);

        return text;

      }

      response = parseJSON(response);

      if ( response.mode == 'error' )

      {

        alert(response.error);

        return text;

      }

      return response.text;

    }

  }

  catch(e)

  {

    console.warn('DN_AjaxGetTransformedText: XHR failed');

  }

  return text;

}

DNobj.prototype.addClass = function(clsname) { addClass(this.object, clsname); return this; };

DNobj.prototype.rmClass  = function(clsname) { rmClass( this.object, clsname); return this; };

DNobj.prototype.hasClass = function(clsname) { return hasClass(this.object, clsname); };

DNobj.prototype.Height   = function()        { return __DNObjGetHeight(this.object); }

DNobj.prototype.Width    = function()        { return __DNObjGetWidth( this.object); }

DNobj.prototype.Left     = function()        { /* return this.object.offsetLeft; */ return __DNObjGetLeft(this.object); }

DNobj.prototype.Top      = function()        { /* return this.object.offsetTop;  */ return __DNObjGetTop( this.object); }