/**
 * Script to add a wordcounter on the edit form
 * https://www.dokuwiki.org/tips:wordcounter
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 * @author Lars Flintzak
 * @license GPL 2
 */

var wordcounter_timeout;

function wordcounter(text){
    var list = text.split(/[^\w\-_]+/);
    var len  = list.length;
    if(list[len-1] == '') len--;
    if(list[0] == '') len--;
    if(len < 0) len=0;
    return len;
}

function charcounter(text){
    var list = text.split(/[^\w\-_]+/);
    var len  = text.length;
    if(list[len-1] == '') len--;
    if(list[0] == '') len--;
    if(len < 0) len=0;
    return len;
}

// replaced next line as per https://www.dokuwiki.org/devel:jqueryfaq [Rik, 2013-10-20]
// addInitEvent(function(){
jQuery(function(){
    // replaced next line as per https://www.dokuwiki.org/devel:jqueryfaq [Rik, 2013-10-20]
    // var form = $('dw__editform');
    var $form = jQuery('#dw__editform'); 
    var form = $form[0];
    if(!form) return;
    var div = document.createElement('div');
    div.id = 'word__counter__output';
    div.style.position = 'absolute';
    div.style.width    = '80px';
    div.style.right = '50px';
    div.style.top   = (findPosY(form.elements.wikitext)+10)+'px';
    div.style.color = '#0a0';

    form.appendChild(div);
    var all = wordcounter(form.elements.prefix.value);
        all += wordcounter(form.elements.suffix.value);

    var zei_all = charcounter(form.elements.prefix.value);
        zei_all += charcounter(form.elements.suffix.value);

    // replaced next line as per https://www.dokuwiki.org/devel:jqueryfaq [Rik, 2013-10-20] 
    // addEvent(form.elements.wikitext,'keyup',function(){
    jQuery(form.elements.wikitext).keyup(function(){
        if(wordcounter_timeout) window.clearTimeout(wordcounter_timeout);
        wordcounter_timeout = window.setTimeout(function(){
            var len = wordcounter(form.elements.wikitext.value);
            var zei = charcounter(form.elements.wikitext.value);
            div.innerHTML =
                'Section: <br />'+
                '&nbsp;&nbsp;'+zei+' chars<br />'+
                '&nbsp;&nbsp;'+len+' words<br />'+
                'Total: <br />'+
                '&nbsp;&nbsp;'+(zei_all+zei)+' chars<br />'+
                '&nbsp;&nbsp;'+(all+len)+' words';
        },1000);
        return true;
    });
});