Checkout Printcart

Hi,
what is the proper way to add a css in the view Checkout/Printcart.php ?

My template custom.css is not loaded.
Could you add a specific .css to avoid personnal overrides [just for styling] (it can't be updated with upgrades) ?

Thanks a lot

I found a YOO popups.css far from the other "stylesheet"
Usually their templates are overloaded by a custom.css not invoked here.
I prefer to avoid modify your frontend_default.css

But I don't know how to expect the display of this page ?
On my browser, it is displayed as a very basic white full page (not a popup). The rest of my template is with a black background.

I have no problem with this (for printing), but for a nicer effect, I'm wondering if it's possible to have a white popup (which can be printed) as the one in Customer profile edition of the frontend ?
Regards

1) In Firefox 11, I have no particular message on Error Console, except some Warnings in frontend_default.css
If I click on Print icon
I get Warnings for .css and :
Warning: Use of getAttributeNode() is deprecated. Use getAttribute() instead.
Source File: xxx.com/component/hikashop/checkout/printcart/tmpl-component
Line: 0
and an Error :
Error: window.top.SqueezeBox is undefined
Source File: xxx.com/component/hikashop/checkout/printcart/tmpl-component
Line: 51

On IE9, the behaviour is the same and I get :
- on loading : SEC7115: Les styles de liens visibles et consultés peuvent avoir une couleur différente. Certains styles n’ont pas été appliqués au lien consulté. checkout
- on click on print icon :
SCRIPT5007: Impossible d’obtenir la valeur de la propriété « close » : objet null ou non défini
tmpl-component, Ligne 51 Caractère 170

but it seems that SqueezeBox is for popups.

I don't understand printcart.php code. Is it intended for sending the cart content to a popup ?

It would be fine if it was working, with the site name on top !

Checkout/cart.php has the following code to invoke Printing :

<a title="<?php echo JText::_('HIKA_PRINT');?>" class="modal" rel="{handler: 'iframe', size: {x: 760, y: 480}}" href="<?php echo hikashop_completeLink('checkout&task=printcart',true); ?>">
  <img src="/images/Site/Icones/printer.png" alt="<?php echo JText::_('HIKA_PRINT');?>"/>
</a>

Sorry to be perseverant, I compared the generated code for the adress profile edition popup and the print cart expected popup.
Headers are begining the same, but in printcart, there is missing :
1) <link rel="stylesheet" href="/media/system/css/modal.css" type="text/css" />
2) <script src="/media/system/js/modal.js" type="text/javascript"></script>
3) a javascript begining that way :
<script type="text/javascript">
do_nothing( function() {
SqueezeBox.initialize({});
SqueezeBox.assign($$('a.modal'), {
parse: 'rel'
});
});
Obviously, SqueezeBox code is not loaded.

I do not understand how these codes are generating full pages and how their headers are build.
Do you have any clue ?

Thanks Nicolas

Nicolas,
I activated the "Allow users to print invoices in the frontend" option and I have a printer icon for commands.
If I click on it it works perfectly like you describe for the checkout !

Yes for the Invoice printing in Commands history in the frontend. The behaviour is perfect and is working.

But my problem is that I would like to have the same behaviour during checkout : Print a simplified Command page.
But instead of having a quick popup self-printed, the browser switchs to a full new white page.
I just want to obtain something like History, but on Views basis, I do not understand how the page are generated,
integrating the Joomla templates elements which are differents in each situations.

PS : my template has a black background, so the white popup is perfect for printing.

I paste the print icon code from address/listing.php in checkout/cart.php
the behaviour working in address/listing.php is displaying a new white page calling Win printing.
I just see that in the non working view, the generated code in the header doesn't include Joomla /media/system/js/modal.js and SqueezeBox initialisation.

What can differ in the way those 2 views are transformed in a Joomla page ???
or how could I modify their headers ?

N.B. : I pasted the print code from checkout/cart.php in address/listing.php and it works perfectly in a popup !!!

Thanks for help !

Nicolas,
sorry to insist, but I edited my previous post with additional tests.
Thanks