Prestashop: display "Choose language" inline in admin - prestashop

Question

I wanna simplify my life and display language flags inline next to input fields in admin panel.
Example:
Turn this:
into this:
I tried override
abstract class ModuleCore { public function displayFlags() }
but no effect.
Then I modify admin\themes\default\template\helpers\options\options.tpl to:
<div class="displayed_flag">
{foreach $languages as $language}
<img src="../img/l/{$language.id_lang}.jpg"
class="pointer"
alt="{$language.name}"
title="{$language.name}"
onclick="changeLanguage('{$key}', '{if isset($custom_key)}{$custom_key}{else}{$key}{/if}', {$language.id_lang}, '{$language.iso_code}');" />
{/foreach}
</div>
But still nothing.
Of course I deleted class_index.php, clear cache etc...
I am using Prestashop 1.5.5 and default theme.

Answer 1

You're searching for the displayFlags function inside /js/admin.js file.
Here it works on my installation with this changes:
function displayFlags(languages, defaultLanguageID, employee_cookie)
{
if ($('.translatable'))
{
$('.translatable').each(function() {
if (!$(this).find('.displayed_flag').length > 0) {
$.each(languages, function(key, language) {
if (language['id_lang'] == defaultLanguageID)
{
defaultLanguage = language;
return false;
}
});
var displayFlags = $('<div></div>')
.addClass('displayed_flag');
$.each(languages, function(key, language) {
var img = $('<img>')
.addClass('pointer')
.css('margin', '0 2px')
.attr('src', '../img/l/' + language['id_lang'] + '.jpg')
.attr('alt', language['name'])
.click(function() {
changeFormLanguage(language['id_lang'], language['iso_code'], employee_cookie);
});
displayFlags.append(img);
});
if ($(this).find('p:last-child').hasClass('clear'))
$(this).find('p:last-child').before(displayFlags);
else
$(this).append(displayFlags);
}
});
}
}