// ==UserScript== (Plurk Paste)

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// ==UserScript==
//
// @name HSTextadder
// @description Adds the html for hs characters to text boxes
// @author SimplerUser
// @version 1.4
// @include *dreamwidth.org*
//
// ==/UserScript==

//only run if there is a commentbox
var txtbx = document.getElementById("body");
if (txtbx == null) txtbx = document.getElementById("commenttext");
if (txtbx != null){

//get the currentusername
var length = document.getElementsByClassName("ljuser").length;
var user = document.getElementsByClassName("ljuser")[length-1].getAttribute("lj:user");

var usermap = new Array('lisping'); //list of usernames
var charactermap = new Array('Sollux'); //characters they match to
var character = "";

for (var i = 0 ; i < usermap.length; i++){ //set character to username
if (usermap[i] == user) {
character = charactermap[i];
}

}

//hs characters and their codes
var htmlcharmap = new Array('plain', 'black', 'John', 'Rose', 'Dave', 'Jade', 'Aradia', 'Tavros', 'Sollux', 'Karkat', 'Nepeta', 'Kanaya', 'Terezi', 'Vriska', 'Equius', 'Gamzee', 'Eridan', 'Feferi', 'Jane', 'Roxy', 'Jake', 'Dirk', 'UU', 'uu', 'Jaspersprite');
var htmlmap = new Array('', //plain
'', //black
'', //john
'', //rose
'', //dave
'', //jade
'', //aa
'', //tav
'', //sol
'', //kar
' AC: :33 <',
'',
'',
' AG:',
'CT: D -->',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'');

var list = document.createElement('select');
list.setAttribute('id', 'charList');
for (var i = 0; i < htmlcharmap.length; i++){
var nameEl = document.createElement('option');
nameEl.setAttribute('value', htmlmap[i]);
nameEl.innerHTML = htmlcharmap[i];
if (htmlcharmap[i] == character) {
nameEl.setAttribute('selected', 'selected');
}
list.appendChild(nameEl);
}

function insertAfter(newElement,targetElement) {

var parent = targetElement.parentNode;

if(parent.lastchild == targetElement) {
parent.appendChild(newElement);
} else {
parent.insertBefore(newElement, targetElement.nextSibling);
}
}

//make the button
var zNode = document.createElement ('button');
zNode.setAttribute ('id', 'myButton');
zNode.setAttribute ('type', 'button');
zNode.innerHTML = 'Add Code';

//make the button
var end = document.createElement ('button');
end.setAttribute ('id', 'endButton');
end.setAttribute ('type', 'button');
end.innerHTML = 'close tags';

//make the button
var act = document.createElement ('button');
act.setAttribute ('id', 'actButton');
act.setAttribute ('type', 'button');
act.innerHTML = 'small tags';

insertAfter(list, document.getElementById("subject"));
insertAfter(zNode, document.getElementById("charList"));
insertAfter(end, document.getElementById("myButton"));
insertAfter(act, document.getElementById("endButton"));

function doGetCaretPosition (ctrl) {
var CaretPos = 0; // IE Support
if (document.selection) {
ctrl.focus ();
var Sel = document.selection.createRange ();
Sel.moveStart ('character', -ctrl.value.length);
CaretPos = Sel.text.length;
}
// Firefox support
else if (ctrl.selectionStart || ctrl.selectionStart == '0')
CaretPos = ctrl.selectionStart;
return (CaretPos);
}
function setCaretPosition(ctrl, pos){
if(ctrl.setSelectionRange)
{
ctrl.focus();
ctrl.setSelectionRange(pos,pos);
}
else if (ctrl.createTextRange) {
var range = ctrl.createTextRange();
range.collapse(true);
range.moveEnd('character', pos);
range.moveStart('character', pos);
range.select();
}
}
function ButtonClickAction (zEvent)
{
html = document.getElementById('charList').value
var curPos = doGetCaretPosition(txtbx);
var curVal = txtbx.value;
txtbx.value = curVal.substring(0, curPos) + html + curVal.substring(curPos); //adds the stuff
setCaretPosition(txtbx, curPos + html.length);
}
function EndButtonClickAction (zEvent)
{
var toAdd = '';

var curPos = doGetCaretPosition(txtbx);
var curVal = txtbx.value;

txtbx.value = curVal.substring(0, curPos) + toAdd + curVal.substring(curPos); //adds the stuff
setCaretPosition(txtbx, curPos + toAdd.length);
}

function ActButtonClickAction (zEvent)
{

var toAdd = '[]';

var curPos = doGetCaretPosition(txtbx);
var curVal = txtbx.value;

txtbx.value = curVal.substring(0, curPos) + toAdd + curVal.substring(curPos); //adds the stuff
setCaretPosition(txtbx, curPos + 8);
}

//--- Activate the newly added button.
document.getElementById ("myButton").addEventListener ("click", ButtonClickAction, false);

document.getElementById ("endButton").addEventListener ("click", EndButtonClickAction, false);
document.getElementById ("actButton").addEventListener ("click", ActButtonClickAction, false);

}

Direct link: https://paste.plurk.com/show/HdkOftBmANM0cgIPUOCQ

Plurk paste