/**
 * These script were taken from wikipedia.org and modified for DokuWiki
 */

var clientPC = navigator.userAgent.toLowerCase(); // Get client info
var is_gecko = ((clientPC.indexOf('gecko')!=-1) && (clientPC.indexOf('spoofer')==-1)
                && (clientPC.indexOf('khtml') == -1) && (clientPC.indexOf('netscape/7.0')==-1));
var is_safari = ((clientPC.indexOf('AppleWebKit')!=-1) && (clientPC.indexOf('spoofer')==-1));
var is_khtml = (navigator.vendor == 'KDE' || ( document.childNodes && !document.all && !navigator.taintEnabled ));
if (clientPC.indexOf('opera')!=-1) {
    var is_opera = true;
    var is_opera_preseven = (window.opera && !document.childNodes);
    var is_opera_seven = (window.opera && document.childNodes);
}

function escapeQuotes(text) {
  var re=new RegExp("'","g");
  text=text.replace(re,"\\'");
  re=new RegExp('"',"g");
  text=text.replace(re,'"');
  re=new RegExp("\\n","g");
  text=text.replace(re,"\\n");
  return text;
}

// this function generates the actual toolbar buttons with localized text
// we use it to avoid creating the toolbar where javascript is not enabled
function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText, accessKey) {

  speedTip=escapeQuotes(speedTip);
  tagOpen=escapeQuotes(tagOpen);
  tagClose=escapeQuotes(tagClose);
  sampleText=escapeQuotes(sampleText);
  var mouseOver="";

  // we can't change the selection, so we show example texts
  // when moving the mouse instead, until the first button is clicked
  if(!document.selection && !is_gecko) {
    // filter backslashes so it can be shown in the infobox
    var re=new RegExp("\\\\n","g");
    tagOpen=tagOpen.replace(re,"");
    tagClose=tagClose.replace(re,"");
    mouseOver = "onMouseover=\"if(!noOverwrite){document.infoform.infobox.value='"+tagOpen+sampleText+tagClose+"'};\"";
  }

  document.write("<a ");
  if(accessKey){
    document.write("accesskey=\""+accessKey+"\" ");
    speedTip = speedTip+' [ALT+'+accessKey.toUpperCase()+']';
  }
  document.write("href=\"javascript:insertTags");
  document.write("('"+tagOpen+"','"+tagClose+"','"+sampleText+"');\">");

        document.write("<img width=\"24\" height=\"24\" src=\""+imageFile+"\" border=\"0\" ALT=\""+speedTip+"\" TITLE=\""+speedTip+"\""+mouseOver+">");
  document.write("</a>");
  return;
}

function addMediaSelect(imageFile, speedTip, accessKey) {

  speedTip=escapeQuotes(speedTip);
  var mouseOver="";

  // we can't change the selection, so we show example texts
  // when moving the mouse instead, until the first button is clicked
  if(!document.selection && !is_gecko) {
    // filter backslashes so it can be shown in the infobox
    mouseOver = "onMouseover=\"if(!noOverwrite){document.infoform.infobox.value='{{image.jpg}}'};\"";
  }

  document.write("<a ");
  if(accessKey){
    document.write("accesskey=\""+accessKey+"\" ");
  }
  document.write("href=\"javascript:void(window.open('media.php','mediaselect','width=310,height=400,left=320,top=50'));\">");
  document.write("<img width=\"24\" height=\"24\" src=\""+imageFile+"\" border=\"0\" ALT=\""+speedTip+"\" TITLE=\""+speedTip+"\""+mouseOver+">");
  document.write("</a>");
  return;
}



function addInfobox(infoText,text_alert) {
  alertText=text_alert;
  var clientPC = navigator.userAgent.toLowerCase(); // Get client info

  var re=new RegExp("\\\\n","g");
  alertText=alertText.replace(re,"\n");

  // if no support for changing selection, add a small copy & paste field
  // document.selection is an IE-only property. The full toolbar works in IE and
  // Gecko-based browsers.
  if(!document.selection && !is_gecko) {
     infoText=escapeQuotesHTML(infoText);
     document.write("<form name='infoform' id='infoform'>"+
      "<input size=80 id='infobox' name='infobox' value=\""+
      infoText+"\" READONLY></form>");
   }

}

// apply tagOpen/tagClose to selection in textarea,
// use sampleText instead of selection if there is none
// copied and adapted from phpBB
function insertTags(tagOpen, tagClose, sampleText) {

  var txtarea = document.editform.wikitext;
  // IE
  if(document.selection  && !is_gecko) {
    var theSelection = document.selection.createRange().text;
    if(!theSelection) { theSelection=sampleText;}
    txtarea.focus();
    if(theSelection.charAt(theSelection.length - 1) == " "){// exclude ending space char, if any
      theSelection = theSelection.substring(0, theSelection.length - 1);
      document.selection.createRange().text = tagOpen + theSelection + tagClose + " ";
    } else {
      document.selection.createRange().text = tagOpen + theSelection + tagClose;
    }

  // Mozilla
  } else if(txtarea.selectionStart || txtarea.selectionStart == '0') {
     var startPos = txtarea.selectionStart;
    var endPos = txtarea.selectionEnd;
    var scrollTop=txtarea.scrollTop;
    var myText = (txtarea.value).substring(startPos, endPos);
    if(!myText) { myText=sampleText;}
    if(myText.charAt(myText.length - 1) == " "){ // exclude ending space char, if any
      subst = tagOpen + myText.substring(0, (myText.length - 1)) + tagClose + " ";
    } else {
      subst = tagOpen + myText + tagClose;
    }
    txtarea.value = txtarea.value.substring(0, startPos) + subst +
      txtarea.value.substring(endPos, txtarea.value.length);
    txtarea.focus();

    var cPos=startPos+(tagOpen.length+myText.length+tagClose.length);
    txtarea.selectionStart=cPos;
    txtarea.selectionEnd=cPos;
    txtarea.scrollTop=scrollTop;

  // All others
  } else {
    var copy_alertText=alertText;
    var re1=new RegExp("\\$1","g");
    var re2=new RegExp("\\$2","g");
    copy_alertText=copy_alertText.replace(re1,sampleText);
    copy_alertText=copy_alertText.replace(re2,tagOpen+sampleText+tagClose);
    var text;
    if (sampleText) {
      text=prompt(copy_alertText);
    } else {
      text="";
    }
    if(!text) { text=sampleText;}
    text=tagOpen+text+tagClose;
    document.infoform.infobox.value=text;
    // in Safari this causes scrolling
    if(!is_safari) {
      txtarea.focus();
    }
    noOverwrite=true;
  }
  // reposition cursor if possible
  if (txtarea.createTextRange) txtarea.caretPos = document.selection.createRange().duplicate();
}


// http://www.alexking.org/index.php?content=software/javascript/content.php
function mediaSelect(file){
  var myField = opener.document.editform.wikitext;
  var myValue = '{{'+file+'}}';

    //IE support
  if (document.selection) {
    myField.focus();
    sel = document.selection.createRange();
    sel.text = myValue;
  }
  //MOZILLA/NETSCAPE support
  else if (myField.selectionStart || myField.selectionStart == '0') {
    var startPos = myField.selectionStart;
    var endPos = myField.selectionEnd;
    myField.value = myField.value.substring(0, startPos)
                  + myValue 
                  + myField.value.substring(endPos, myField.value.length);
  } else {
    myField.value += myValue;
  }

  window.close(); 
}

function showTocToggle(show,hide) {
  if(document.getElementById) {
    document.writeln('<span class=\'toctoggle\'><a href="javascript:toggleToc()" class="toc">' +
    '<span id="showlink" style="display:none;">' + show + '</span>' +
    '<span id="hidelink">' + hide + '</span>'
    + '</a></span>');
  }
}

function toggleToc() {
  var toc = document.getElementById('tocinside');
  var showlink=document.getElementById('showlink');
  var hidelink=document.getElementById('hidelink');
  if(toc.style.display == 'none') {
    toc.style.display = tocWas;
    hidelink.style.display='';
    showlink.style.display='none';
  } else {
    tocWas = toc.style.display;
    toc.style.display = 'none';
    hidelink.style.display='none';
    showlink.style.display='';

  }
}

function showSizeCtl(){
  if(document.getElementById) {
    var textarea = document.getElementById('wikitext');
    textarea.style.height = '300px';
    document.writeln('<a href="javascript:sizeCtl(100)"><img src="images/larger.png" width="20" height="20" border="0"></a>');
    document.writeln('<a href="javascript:sizeCtl(-100)"><img src="images/smaller.png" width="20" height="20" border="0"></a>');
  }
}

function sizeCtl(val){
  var textarea = document.getElementById('wikitext');
  var height = parseInt(textarea.style.height.substr(0,textarea.style.height.length-2));
  height += val;
  textarea.style.height = height+'px';
}