User:Fæ/QRcode.js

Code that you insert on this page could contain malicious content capable of compromising your account. If you import a script from another page with "importScript", "mw.loader.load", "iusc", or "lusc", take note that this causes you to dynamically load a remote script, which could be changed by others. Editors are responsible for all edits and actions they perform, including by scripts. User scripts are not centrally supported and may malfunction or become inoperable due to software changes. A guide to help you find broken scripts is available. If you are unsure whether code you are adding to this page is safe, you can ask at the appropriate village pump.
This code will be executed when previewing this page.

Documentation for this user script can be added at User:Fæ/QRcode.

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/**************************************************************************/
/* Userscript to add a QR code display option to toolbar
/*
/* Generates a QR code image using the current Wikipedia page URL.
/* Demo version so use at your own risk!
/*
/* Initial failure to display in the Toolbox may be due to:
/* . needing to purge the page cache
/* . or you may be on a page without "What links here"
/* . the order of javascript changes might stop the link being added. If you 
/*   have 'addOnloadHook', it may need to run there rather than earlier.
/*
/* Link: http://enwp.org/User:Fæ/QRcode.js
/* More info on QR codes: http://enwp.org/QR_code
/* Created: 2 Feb 2011 
/**************************************************************************/

// Set up toolbox basics
var tid="t-qrcode",
 ttxt="QR code",
 thref='http://qrcode.kaywa.com/img.php?s=' 5 '&d=' location.href; /* parameters: s=size, d=url */

// Create link
var tul=document.getElementById("t-whatlinkshere"),ta=document.createElement("a"),tli=document.createElement("li");
ta.appendChild(document.createTextNode(ttxt));
ta.href=thref;
tli.appendChild(ta);
tli.id=tid;
if(tul)tul.parentNode.appendChild(tli);