[TYPO3-core] RFC #16007: Allow skins to register sprites through addIconSprite

[Ernesto Baschny [cron IT]]

Hi,

This is a SVN patch request.

Type: Feature / API finetuning

BT reference: http://bugs.typo3.org/view.php?id=16007

Branches: trunk

Problem:
Currently, extensions can register sprites using 
t3lib_spriteManager::addIconSprite(). This requires an array of icons 
(which will be added to 
$TBE_STYLES['spritemanager']['spriteIconsAvailable']) and the CSS 
filename which contains the generated sprite.css.

A skin might also want to provide a different sprite, but the skin's CSS 
files are already loaded automatically from the registered directory. 
See #15229 where t3skin wants to add a sprite for flags. After this fix, 
we will use the API to do so in t3skin, simply not passing the CSS 
filename, but just the array of images.


How to test:
Not possible yet, but see patch #15229 patch -v3, where it will be used.

Cheers,
Ernesto
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