/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt WebKit module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of The Qt Company Ltd nor the names of its
**     contributors may be used to endorse or promote products derived
**     from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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****************************************************************************/
window.onload = function() {

    initDT();
    document.querySelector('body').addEventListener('click', function(event){
        var dl = document.querySelector('#accordion');
        var ct = event.currentTarget;
        var t = event.target;
        var dt;
        if (t.id == 'accordion' && t.className == 'collapsed') {
             dl.className = 'expanded';
        }
        else if (t.tagName == 'DT' && t.parentNode.id == 'accordion') {
             if ( t.className == 'collapsed' ) {
                 t.className = 'expanded';
             }
             else {
                 t.className = 'collapsed';
             }
        }
        else {
             dl.className = 'collapsed';
             initDT();
        }
    });
};

function initDT() {
    var el = nlToAr(document.querySelectorAll('#accordion > dt'));
    el.forEach( function(l){ l.className = 'collapsed'; });
}

function nlToAr(nl) {
    var a = new Array();
    var l = nl.length;
    var i = l - 1;
    a[i] = true;
    for ( i = 0; i < l ; i++ ) { a[i] = nl[i]; }
    return(a);
}
