/*

 * AJAX applets

 */

function ajaxGet(uri, f) {

  if (window.XMLHttpRequest) {

    ajax = new XMLHttpRequest();

  } else {

    if (window.ActiveXObject) {           

      ajax = new ActiveXObject("Microsoft.XMLHTTP");

    } else {

      alert('Enano client-side runtime error: No AJAX support, unable to continue');

      return;

    }

  }

  ajax.onreadystatechange = f;

  ajax.open('GET', uri, true);

  ajax.setRequestHeader( "If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT" );

  ajax.send(null);

}

function ajaxPost(uri, parms, f) {

  if (window.XMLHttpRequest) {

    ajax = new XMLHttpRequest();

  } else {

    if (window.ActiveXObject) {           

      ajax = new ActiveXObject("Microsoft.XMLHTTP");

    } else {

      alert('Enano client-side runtime error: No AJAX support, unable to continue');

      return;

    }

  }

  ajax.onreadystatechange = f;

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

  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.setRequestHeader("Connection", "close");

  ajax.send(parms);

}

function ajaxEscape(text)

{

  /*

  text = escape(text);

  text = text.replace(/\+/g, '%2B', text);

  */

  text = window.encodeURIComponent(text);

  return text;

}

function ajaxAltEscape(text)

{

  text = escape(text);

  text = text.replace(/\+/g, '%2B', text);

  return text;

}

// Page editor

function ajaxEditor()

{

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  setAjaxLoading();

  ajaxGet(stdAjaxPrefix+'&_mode=getsource', function() {

      if(ajax.readyState == 4) {

        unsetAjaxLoading();

        if(edit_open) {

          c=confirm('Do you really want to revert your changes?');

          if(!c) return;

        }

        edit_open = true;

        selectButtonMajor('article');

        selectButtonMinor('edit');

        if(in_array('ajaxEditArea', grippied_textareas))

        {

          // Allow the textarea grippifier to re-create the resizer control on the textarea

          grippied_textareas.pop(in_array('ajaxEditArea', grippied_textareas));

        }

        disableUnload('If you do, any changes that you have made to this page will be lost.');

        var switcher = ( readCookie('enano_editor_mode') == 'tinymce' ) ?

                        '<a href="#" onclick="setEditorText(); return false;">wikitext editor</a>  |  graphical editor' :

                        'wikitext editor  |  <a href="#" onclick="setEditorMCE(); return false;">graphical editor</a>' ;

        document.getElementById('ajaxEditContainer').innerHTML = '\

        <div id="mdgPreviewContainer"></div> \

        <span id="switcher">' + switcher + '</span><br />\

        <form name="mdgAjaxEditor" method="get" action="#" onsubmit="ajaxSavePage(); return false;">\

        <textarea id="ajaxEditArea" rows="20" cols="60" style="display: block; margin: 1em 0 1em 1em; width: 96.5%;">'+ajax.responseText+'</textarea><br />\

          Edit summary: <input id="ajaxEditSummary" size="40" /><br />\

          <input id="ajaxEditMinor" name="minor" type="checkbox" /> <label for="ajaxEditMinor">This is a minor edit</label><br />\

          <a href="#" onclick="void(ajaxSavePage()); return false;">save changes</a>  |  <a href="#" onclick="void(ajaxShowPreview()); return false;">preview changes</a>  |  <a href="#" onclick="void(ajaxEditor()); return false;">revert changes</a>  |  <a href="#" onclick="void(ajaxDiscard()); return false;">discard changes</a>\

          <br />\

          '+editNotice+'\

        </form>';

        // initTextareas();

        if(readCookie('enano_editor_mode') == 'tinymce')

        {

          $('ajaxEditArea').switchToMCE();

        }

      }

  });

}

function setEditorMCE()

{

  $('ajaxEditArea').switchToMCE();

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

  $('switcher').object.innerHTML = '<a href="#" onclick="setEditorText(); return false;">wikitext editor</a>  |  graphical editor';

}

function setEditorText()

{

  $('ajaxEditArea').destroyMCE();

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

  $('switcher').object.innerHTML = 'wikitext editor  |  <a href="#" onclick="setEditorMCE(); return false;">graphical editor</a>';

}

function ajaxViewSource()

{

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  setAjaxLoading();

  ajaxGet(stdAjaxPrefix+'&_mode=getsource', function() {

      if(ajax.readyState == 4) {

        unsetAjaxLoading();

        if(edit_open) {

          c=confirm('Do you really want to revert your changes?');

          if(!c) return;

        }

        edit_open = true;

        selectButtonMajor('article');

        selectButtonMinor('edit');

        if(in_array('ajaxEditArea', grippied_textareas))

        {

          // Allow the textarea grippifier to re-create the resizer control on the textarea

          grippied_textareas.pop(in_array('ajaxEditArea', grippied_textareas));

        }

        document.getElementById('ajaxEditContainer').innerHTML = '\

          <form method="get" action="#" onsubmit="ajaxSavePage(); return false;">\

            <textarea readonly="readonly" id="ajaxEditArea" rows="20" cols="60" style="display: block; margin: 1em 0 1em 1em; width: 96.5%;">'+ajax.responseText+'</textarea><br />\

            <a href="#" onclick="void(ajaxReset()); return false;">close viewer</a>\

          </form>';

        initTextareas();

      }

  });

}

function ajaxShowPreview()

{

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  goBusy('Loading preview...');

  var text = ajaxEscape($('ajaxEditArea').getContent());

  if(document.mdgAjaxEditor.minor.checked) minor='&minor';

  else minor='';

  ajaxPost(stdAjaxPrefix+'&_mode=preview', 'summary='+document.getElementById('ajaxEditSummary').value+minor+'&text='+text, function() {

    if(ajax.readyState == 4) {

      unBusy();

      edit_open = false;

      document.getElementById('mdgPreviewContainer').innerHTML = ajax.responseText;

    }

  });

}

function ajaxSavePage()

{

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  //goBusy('Saving page...');

  var text = ajaxEscape($('ajaxEditArea').getContent());

  if(document.mdgAjaxEditor.minor.checked) minor='&minor';

  else minor='';

  ajaxPost(stdAjaxPrefix+'&_mode=savepage', 'summary='+document.getElementById('ajaxEditSummary').value+minor+'&text='+text, function() {

    if(ajax.readyState == 4) {

      unBusy();

      edit_open = false;

      document.getElementById('ajaxEditContainer').innerHTML = ajax.responseText;

      enableUnload();

      unselectAllButtonsMinor();

    }

  });

}

function ajaxDiscard()

{

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  c = confirm('Do you really want to discard your changes?');

  if(!c) return;

  ajaxReset();

}

function ajaxReset()

{

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  enableUnload();

  setAjaxLoading();

  ajaxGet(stdAjaxPrefix+'&_mode=getpage&noheaders', function() {

    if(ajax.readyState == 4) {

      unsetAjaxLoading();

      edit_open = false;

      document.getElementById('ajaxEditContainer').innerHTML = ajax.responseText;

      selectButtonMajor('article');

      unselectAllButtonsMinor();

    }

  });

}

// Miscellaneous AJAX applets

function ajaxProtect(l) {

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  if(shift) {

    r = 'NO_REASON';

  } else {

    r = prompt('Reason for (un)protecting:');

    if(!r || r=='') return;

  }

  setAjaxLoading();

  document.getElementById('protbtn_0').style.textDecoration = 'none';

  document.getElementById('protbtn_1').style.textDecoration = 'none';

  document.getElementById('protbtn_2').style.textDecoration = 'none';

  document.getElementById('protbtn_'+l).style.textDecoration = 'underline';

  ajaxPost(stdAjaxPrefix+'&_mode=protect', 'reason='+ajaxEscape(r)+'&level='+l, function() {

    if(ajax.readyState == 4) {

      unsetAjaxLoading();

      if(ajax.responseText != 'good')

        alert(ajax.responseText);

    }

  });

}

function ajaxRename()

{

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  r = prompt('What title should this page be renamed to?\nNote: This does not and will never change the URL of this page, that must be done from the admin panel.');

  if(!r || r=='') return;

  setAjaxLoading();

  ajaxPost(stdAjaxPrefix+'&_mode=rename', 'newtitle='+ajaxEscape(r), function() {

    if(ajax.readyState == 4) {

      unsetAjaxLoading();

      alert(ajax.responseText);

    }

  });

}

function ajaxMakePage()

{

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  setAjaxLoading();

  ajaxPost(ENANO_SPECIAL_CREATEPAGE, ENANO_CREATEPAGE_PARAMS, function() {

    if(ajax.readyState == 4) {

      unsetAjaxLoading();

      window.location.reload();

    }

  });

}

function ajaxDeletePage()

{

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  var reason = prompt('Please enter your reason for deleting this page.');

  if ( !reason || reason == '' )

  {

    return false;

  }

  c = confirm('You are about to REVERSIBLY delete this page. Do you REALLY want to do this?\n\n(Comments and categorization data, as well as any attached files, will be permanently lost)');

  if(!c)

  {

    return;

  }

  setAjaxLoading();

  ajaxPost(stdAjaxPrefix+'&_mode=deletepage', 'reason=' + ajaxEscape(reason), function() {

    if(ajax.readyState == 4) {

      unsetAjaxLoading();

      alert(ajax.responseText);

      window.location.reload();                                                                           

    }

  });

}

function ajaxDelVote()

{

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  c = confirm('Are you sure that you want to vote that this page be deleted?');

  if(!c) return;

  setAjaxLoading();

  ajaxGet(stdAjaxPrefix+'&_mode=delvote', function() {

    if(ajax.readyState == 4) {

      unsetAjaxLoading();

      alert(ajax.responseText);

    }

  });

}

function ajaxResetDelVotes()

{

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  c = confirm('This will reset the number of votes against this page to zero. Do you really want to do this?');

  if(!c) return;

  setAjaxLoading();

  ajaxGet(stdAjaxPrefix+'&_mode=resetdelvotes', function() {

    if(ajax.readyState == 4) {

      unsetAjaxLoading();

      alert(ajax.responseText);

      item = document.getElementById('mdgDeleteVoteNoticeBox');

      if(item)

      {

        opacity('mdgDeleteVoteNoticeBox', 100, 0, 1000);

        setTimeout("document.getElementById('mdgDeleteVoteNoticeBox').style.display = 'none';", 1000);

      }

    }

  });

}

function ajaxSetWikiMode(val) {

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  setAjaxLoading();

  document.getElementById('wikibtn_0').style.textDecoration = 'none';

  document.getElementById('wikibtn_1').style.textDecoration = 'none';

  document.getElementById('wikibtn_2').style.textDecoration = 'none';

  document.getElementById('wikibtn_'+val).style.textDecoration = 'underline';

  ajaxGet(stdAjaxPrefix+'&_mode=setwikimode&mode='+val, function() {

    if(ajax.readyState == 4) {

      unsetAjaxLoading();

      if(ajax.responseText!='GOOD')

      {

        alert(ajax.responseText);

      }

    }

  });

}

// Editing/saving category information

// This was not easy to write, I hope enjoy it, and dang I swear I'm gonna

// find someone to work on just the Javascript part of Enano...

function ajaxCatEdit()

{

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  setAjaxLoading();

  ajaxGet(stdAjaxPrefix+'&_mode=catedit', function() {

    if(ajax.readyState == 4) {

      unsetAjaxLoading();

      edit_open = false;

      eval(ajax.responseText);

    }

  });

}

function ajaxCatSave()

{

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  if(!catlist)

  {

    alert('Var catlist has no properties');

    return;

  }

  query='';

  for(i=0;i<catlist.length;i++)

  {

    l = 'if(document.forms.mdgCatForm.mdgCat_'+catlist[i]+'.checked) s = true; else s = false;';

    eval(l);

    if(s) query = query + '&' + catlist[i] + '=true';

  }

  setAjaxLoading();

  query = query.substring(1, query.length);

  ajaxPost(stdAjaxPrefix+'&_mode=catsave', query, function() {

    if(ajax.readyState == 4) {

      unsetAjaxLoading();

      edit_open = false;

      if(ajax.responseText != 'GOOD') alert(ajax.responseText);

      ajaxReset();

    }

  });

}

// History stuff

function ajaxHistory()

{

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  setAjaxLoading();

  ajaxGet(stdAjaxPrefix+'&_mode=histlist', function() {

    if(ajax.readyState == 4) {

      unsetAjaxLoading();

      edit_open = false;

      selectButtonMajor('article');

      selectButtonMinor('history');

      document.getElementById('ajaxEditContainer').innerHTML = ajax.responseText;

      buildDiffList();

    }

  });

}

function ajaxHistView(oldid, tit) {

  // IE <6 pseudo-compatibility

  if ( KILL_SWITCH )

    return true;

  if(!tit) tit=title;

  setAjaxLoading();

  ajaxGet(append_sid(scriptPath+'/ajax.php?title='+tit+'&_mode=getpage&oldid='+oldid), function() {

    if(ajax.readyState == 4) {

      unsetAjaxLoading();

      edit_open = false;

      document.getElementById('ajaxEditContainer').innerHTML = ajax.responseText;

    }