Generate the current URL with css file

Question

Hello everybody,
I just added a QRCode App on my Custom List page and I'm trying to create a css file that
it can generate the current URL where the QRCode App is opening.  The QRCode App allows to add css file which Indicates
if I want to specify a custom CSS file URL. The QRCode opens with each List item. 
Below is the code that I've been trying to use:
<ul >
    <a href="">Link </a>
</ul> 
*This code shows the current URL. However instead showing the the URL, it shows a Link to the current page. Can someone help me with that? 
Link for the QRCode App:
http://office.microsoft.com/en-us/store/qrcode-app-for-sharepoint-WA103699711.aspx
Thanks!
App Part properties
When you're editing the app part properties, you can change the following custom properties:
Name
Category
Type
Description
QR Code Text
QRCode Settings
String
QR code
associated text or url. By default, this value is the host web url.
QR Code Width
QRCode
Settings
Integer
QR
code width. Default value is 200 px.
QR Code Height
QRCode
Settings
Integer
QR
code height. Default value is 200 px.
Render Mode
QRCode
Settings
Enum
QR
code render html method. The value could be canvas or html table. Default value is Cancas.
Custom CSS File Url
QRCode Settings
String
Indicates
if you want to specify a custom CSS file URL.
flavio

Answer 1

hi
what do you mean by current url? If url of current page is not what you are looking for, then is it url of current site?
As you use app, I guess you are working with Sharepoint Online and can't use server side code? If this is the case, then check the following post:
How to get URL of current site collection and other server side properties on client site in Sharepoint. Briefly you need to use OTB _spPageContextInfo object and set href attribute of your link in javascript:
<ul>
<a id="foo">Link</a>
</ul>
<script type="text/javascript">
document.getElementById("foo").setAttribute("href", _spPageContextInfo.siteAbsoluteUrl);
</script>
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