MediaWiki:CharCount.js
Note: After publishing, you may have to bypass your browser's cache to see the changes.
- Firefox / Safari: Hold Shift while clicking Reload, or press either Ctrl-F5 or Ctrl-R (⌘-R on a Mac)
- Google Chrome: Press Ctrl-Shift-R (⌘-Shift-R on a Mac)
- Internet Explorer / Edge: Hold Ctrl while clicking Refresh, or press Ctrl-F5
- Opera: Press Ctrl-F5.
$(function () {
var myPlace = document.getElementById('CharCount');
myPlace.innerHTML = ' <!DOCTYPE HTML>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<title>Char Count</title>
<style>
body {
font-family: sans-serif;
}
</style>
<script src='CharCount.js'></script>
</head>
<body onload='setup()'>
<h1>Character Count</h1>
<p>This form is useful for planning text and links for a text input area that has a character limit.
<form id='textForm' oninput='updateOutput()'>
<table border=0>
<tr>
<td colspan=2>
Maximum Characters Allowed:
<select id="chars" name='chars' size="1">
</select>
<br>Abbreviates Links? <input type='checkbox' id='linkAbbreviate' value='Short Links'>
Characters/Link: <select id="linkChars" size="1">
</select>
</td>
</tr>
<tr>
<td colspan=2>
<textarea id='text' rows=10 cols=80>
</textarea>
</td>
</tr>
<tr>
<td id='warningLevel' style='border: solid 1px black; color: green; width: 20px; height: 20px'>
</td>
<td>
<output id="outputCount" value='0 of ?'>0 of ?</output>
</td>
</tr>
</table>
</form>
<h2>Notes</h2>
<table border=1>
<tr>
<th>Platform</th>
<th>User Type</th>
<th>Char Limit</th>
<th>Link Chars</th>
<th>Use these options</th>
</tr>
<tr>
<td>𝕏 (Twitter)</td>
<td>CN Unverified</td>
<td>280</td>
<td>-</td>
<td>
<a href='?c=280'>Setup</a>
</td>
</tr>
<tr>
<td>𝕏 (Twitter)</td>
<td>CN Verified</td>
<td>580?</td>
<td>-</td>
<td>
<a href='?c=580'>Setup</a>
</td>
</tr>
<tr>
<td>𝕏 (Twitter)</td>
<td>Unverified</td>
<td>280</td>
<td>13</td>
<td>
<a href='?c=280&l=13'>Setup</a>
</td>
</tr>
<tr>
<td>𝕏 (Twitter)</td>
<td>Verified</td>
<td>580</td>
<td>13</td>
<td>
<a href='?c=580&l=13'>Setup</a>
</td>
</tr>
</table>
</body>
</html>';
$(function getID(id) {
return document.getElementById(id);
}
);
$(function addNumericOptions(id, min, max, defIndex) {
var s = getID(id);
for (ii=min; ii<=max; ii++) {
var option = document.createElement("option");
option.text = ii;
option.value = ii;
s.add(option);
}
s.value = defIndex;
});
$(function getMaxChars() {
var maxChar = getID('chars');
return maxChar.value;
}
);
$(function getLinkDiscount() {
checkDiscount = getID('linkAbbreviate');
if (!checkDiscount.checked) return 0;
input = getID('text');
sub = getID('linkChars');
let text = "" + input.value.length;
text = text.replaceAll('\\n', ' ');
text = text.replaceAll('\\t', ' ');
var subLength = sub.value;
var discount = 0;
const parts = input.value.split(" ");
for (ii=0; ii<parts.length; ii++) {
part = parts[ii];
l1 = part.length;
l2 = part.replaceAll('http','').length;
if (l1>l2) {
l1 = part.length;
discount+= l1-subLength;
}
}
return discount;
}
);
$(function updateParamValues() {
var c = getParamValue('c');
lengthChoice = getID('chars');
lengthChoice.value = c;
var l = getParamValue('l');
la = getID('linkAbbreviate');
if (l!=null) {
linkChoice = getID('linkChars');
linkChoice.value = l;
la.checked = true;
} else {
la.checked = false;
}
var text = getID('text');
text.rows = c/25;
}
);
$(function getParamValue(name) {
var url = window.location.href;
l1 = url.length;
l2 = url.replaceAll('?','').length;
if (l1==l2) {
return null;
}
const params = url.split('?')[1]; // the params, hopefully
const paramValues = params.split('&');
for (ii=0; ii<paramValues.length; ii++) {
paramValue = paramValues[ii];
//alert(paramValue);
paramName = paramValue.split('=')[0];
if (paramName==name) {
return paramValue.split('=')[1];
}
}
return null;
}
);
$(function updateOutput() {
ld = getLinkDiscount();
cc = getCharacterCount();
ccd = cc-ld;
max = getMaxChars();
rmn = max-ccd;
var warningLevel = getID('warningLevel');
warningLevel.style.background = "rgb(0,255,0)";
if (rmn<10) {
warningLevel.style.background = "rgb(255,255,0)";
}
if (rmn<0) {
warningLevel.style.background = "rgb(255,0,0)";
}
var v = "This content uses " + ccd + " characters of " +
getMaxChars() + " allowed. " +
rmn + " characters to spare.";
var o = getID('outputCount');
o.value = v;
}
);
$(function getCharacterCount() {
input = getID('text');
return input.value.length;
}
);
$(function setup() {
addNumericOptions('chars', 40, 1000, 280);
addNumericOptions('linkChars', 0, 100, 13);
updateParamValues();
updateOutput();
}
);
}());