webkit translateX animation is rolling back to initial position - webkit

Question

I am trying to do a images gallery for mobile webkit,
The only way it is actually fast enough is using the hardware accelerated translateX .
My problem is that the div take back its initial position at the end of the animation. I add the slideGalLeft class cliking on the left button. to the animated div
You can see an example here, in the callback events section:
http://position-absolute.com/jqtouch/demos/main/#home
.slideGalLeft {
-webkit-animation-name: slideColis;
}
#-webkit-keyframes slideColis {
from { -webkit-transform: translateX(0%); }
to { -webkit-transform: translateX(-100%); }
}

Answer 1

Do not use webkit animation for this as it comes back to the default values once played.
Instead define
.slideGalleft{
-webkit-transition: -webkit-transform 1s linear;
-webkit-transform: translateX(0%);
}
and using Javascript, either set -webkit-transform: translateX(100%); or add a CSS class to your element which set the final transform value and webkit will animate it properly

Answer 2

Guillaume's answer is great. However, if you are looking for hardware acceleration, you must let the webkit engine know you want 3D rendering (what makes hardware acceleration active).
According to http://www.html5rocks.com/tutorials/speed/html5/#toc-hardware-accell, this is done by adding translateZ(0) to your rule, like so:
.slideGalleft{
-webkit-transition: -webkit-transform 1s linear;
-webkit-transform: translateX(0%) translateZ(0);
}
Follow Guillaume's advice beyond that.

Answer 3

Use:
-webkit-animation-fill-mode: none/backwards/forwards/both;
This allows you to define at what end of your animation the element remains when the animation is finished.

Answer 4

I was able to make it work by adding a "display:none" style on the finish of the animation. Use the following CSS:
.paused {
-webkit-animation-play-state: paused;
}
.hiddendiv {
display:none;
}
Then in your jQuery code:
$('div.sideimage').click(
function () {
$(this).removeClass("paused").delay(2000).queue(
function(next) {
$(this).addClass("hiddendiv");
next();
}
);
}
);
Should work!