javascript - Slide animation using jQuery only works in one direction -


http://jsfiddle.net/webk2/1/

i have group of block elements , i'm attaching slide animation on click. goal elements continue slide , forth smoothly.

<section class="stretch">     <div class="block blue"></div><div class="block red"></div><div class="block green"></div><div class="block orange"></div><div class="block silver"></div><div class="block teal"></div><div class="block salmon"></div> </section> <button class="button-left">left</button> <button class="button-right">right</button>

and jquery:

function moveright() {         var lastblock = $(".stretch .block:last-child");         lastblock.remove();         $(".stretch .block:first-child").before(lastblock);         $(".stretch .block").each(function(){             $(this).css("left","0").css("right","0");             $(this).animate({"left": "+=250px"}, "5000");         });     };      function moveleft() {         var firstblock = $(".stretch .block:first-child");         firstblock.remove();         $(".stretch .block:last-child").after(firstblock);         $(".stretch .block").each(function(){             $(this).css("right","0").css("left","0");             $(this).animate({"right": "+=250px"}, "5000");         });     }; $(".button-right").click(function(){         moveleft();     });      $(".button-left").click(function(){         moveright();     });

the result i'm getting 1 of move functions sliding animate (moveright). can't see why won't animate moveleft function.

fiddle

change moveright() to

function moveright() {     if ($('.stretch .block:animated').length == 0) {         var lastblock = $(".stretch .block:last-child");         var cloned = lastblock.clone()         cloned.width(1);         $(".stretch .block:first-child").before(cloned);         cloned.animate({             'width': "250"         }, "5000", function () {             lastblock.remove()         });     } };

and moveleft() to

function moveleft() {     if ($('.stretch .block:animated').length == 0) {         var firstblock = $(".stretch .block:first-child");         var cloned = firstblock.clone()         cloned.width(250);         $(".stretch .block:last-child").after(cloned);         firstblock.animate({             'width': "0"         }, "5000", function () {             firstblock.remove()         });     } };

this achieves visual outcome @ least. clone necessary if don't have enough elements fill container 1 missing right hand side.

the check if of elements animated prevent multiple clones being made of same element.


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