// ==UserScript==
// @name        HTLAL PostBox
// @description Makes writing posts easier
// @match       *://*.how-to-learn-any-language.com/forum/*
// @exclude     *://*.how-to-learn-any-language.com/forum/login_user.asp*
// @grant       none
// ==/UserScript==
function addBBCode_delegate(open,close) {
    return function(){
        addBBCode(open,close)
    }
}

var CSS = ' style="display: inline-block;'+
                  'background-color: white;'+
                  'border: 1px solid;'+
                  'color: black;'+
                  'height: 15px;'+
                  'padding: 3px;'+
                  'margin-left: 4px;'+
    'text-decoration:none;vertical-align:bottom;font-weight:bold;box-shadow: 1px 1px 1px #888888;"';

var buttons = ["B","I","U","URL","EMAIL","CENTER","LIST","INDENT","IMG","QUOTE","COLOR","FONT","CODE"];
var style = ["bold","italic","underline","url","email","center","list","indent","image","quote","color","font","code"];

var links = document.querySelectorAll("form a");
for(var i = buttons.length-1; i >= links.length; i--) {
    links[links.length-1].insertAdjacentHTML('afterend','<a'+CSS+'>'+buttons[i]+'</a>');
}

td = links[1].parentElement;
td.setAttribute("width","100%");


// update links now that we've added QUOTE
links = document.querySelectorAll("form a");
for(var i = 0; i < links.length; i++) {
    links[i].href = "JavaScript:addBBCode()";
    links[i].id = style[i];
}

for (var i = 0; i < buttons.length; i++) {
    var open = '[' + buttons[i] + ']';
    var close = '[/' + buttons[i] + ']';
    document.getElementById(style[i]).addEventListener('click', addBBCode_delegate(open,close), false);
}

function addBBCode(open, close)
{
    var textareas = document.getElementsByTagName('textarea');  // grab the textarea element
    var textarea = textareas[0];
    textarea.focus();                           // put cursor into textarea
    var start = textarea.selectionStart;        // find the start and end of the selection (if available) in textarea
    var end = textarea.selectionEnd;
    var length = textarea.textLength;           // we need these 3 values to split up the text
    var before = textarea.value.substring(0,start);
    var between = textarea.value.substring(start, end);
    var after = textarea.value.substring(end, length);
    textarea.value = before + open + between + close + after;
    var position = end + open.length + close.length;
    if(start-end == 0)
        position = start+open.length;
    textarea.setSelectionRange(position,position);  // put cursor just after the last added tag
    return;
}