Scroll the carousel more than one slide at a time

[daltonrooney]

I have a carousel that's set to show four slides, and I'd like it to advance four slides at a time to the next group. Is there any way to do that?

[DannyJasper]

Have exactly the same issue/question. Maybe it's possible with some nifty callback on the next button, but I can not get it to work.

[mpettitt]

Instead of showing four slides, show one slide with 4 elements in. Then the cycle just happily displays the outer groups, and you get the same visual effect.

Something like (this won't work without adjustment!):

<div class="cycle">
  <div class="group">
    <img src="img1.png" />
    <img src="img2.png" />
  </div>
  <div class="group">
    <img src="img3.png" />
    <img src="img4.png" />
  </div>
</div>

[daltonrooney]

@mpettitt That's what I ended up doing, but if you have an odd number of items in your carousel, then it won't be continuous. http://cl.ly/1l2k1D133t2U

I'd like the ability to create a continuous carousel but advance the entire row in one shot.

[malsup]

This is a feature I plan to add, just haven't had time. I have a lot of work to do on the carousel implementation.

[gabrielfin]

I've been playing around a bit and came up with the following solution, while we wait for something more official. You can choose the number of slides it "hops" with the setting data-cycle-carousel-hops

@@ -6,6 +6,10 @@
     if ( opts.fx !== 'carousel' )
         return;

+    function _modulo(m,n) {
+        return ((m%n)+n)%n;
+    }
+    
     API.getSlideIndex = function( el ) {
         var slides = this.opts()._carouselWrap.children();
         var i = slides.index( el );
@@ -17,10 +21,47 @@
         var count = opts.reverse ? -1 : 1;
         if ( opts.allowWrap === false && ( opts.currSlide + count ) > opts.slideCount - opts.carouselVisible )
             return;
-        opts.API.advanceSlide( count );
+        opts.API.advanceSlide( count * opts.carouselHops );
         opts.API.trigger('cycle-next', [ opts ]).log('cycle-next');
     };
-
+    
+    API.prev = function() {
+        var opts = this.opts();
+        if ( opts.busy && ! opts.manualTrump )
+            return;
+        var count = opts.reverse ? 1 : -1;
+        if ( opts.allowWrap === false && ( opts.currSlide + count ) < 0 )
+            return;
+
+        opts.API.advanceSlide( count * opts.carouselHops );
+        opts.API.trigger('cycle-prev', [ opts ]).log('cycle-prev');
+    };
+    
+    API.calcFirstSlide = function() {
+        var opts = this.opts();
+        var firstSlideIndex;
+        firstSlideIndex = parseInt( opts.startingSlide || 0, 10 );
+        if (firstSlideIndex >= opts.slides.length || firstSlideIndex < 0)
+            firstSlideIndex = 0;
+
+        opts.currSlide = firstSlideIndex;
+        opts.nextSlide = _modulo(firstSlideIndex + opts.carouselHops * (opts.reverse ? -1 : 1), opts.slideCount);
+    };
+    
+    API.calcNextSlide = function(){
+        opts.currSlide = opts.nextSlide;
+        opts.nextSlide = _modulo(opts.currSlide + opts.carouselHops * (opts.reverse ? -1 : 1), opts.slideCount);
+    }
+
+    API.advanceSlide = function( val ) {
+        var opts = this.opts();
+        clearTimeout(opts.timeoutId);
+        opts.timeoutId = 0;
+        opts.nextSlide = _modulo(opts.currSlide + val, opts.slides.length);
+
+        opts.API.prepareTx( true,  val >= 0 );
+        return false;
+    };
 });


@@ -46,6 +87,12 @@
         if (opts.carouselVisible && opts.carouselVisible > opts.slideCount)
             opts.carouselVisible = opts.slideCount - 1;
         var visCount = opts.carouselVisible || opts.slides.length;
+        
+        if( opts.carouselVisible )
+            opts.carouselHops = Math.min(opts.carouselHops || 1, opts.slideCount - opts.carouselVisible + 1);
+        else
+            opts.carouselHops = Math.min(opts.carouselHops || 1, opts.slideCount - 1);
+
         var slideCSS = { display: vert ? 'block' : 'inline-block', position: 'static' };

         // required styles
@@ -194,14 +237,16 @@
             opts.API.opts()._currSlide = opts.nextSlide > maxCurr ? maxCurr : opts.nextSlide;
         }
         else {
-            if ( fwd && opts.nextSlide === 0 ) {
-                // moving from last slide to first
-                moveBy = this.getDim( opts, opts.currSlide, vert );
+            if ( fwd && opts.nextSlide < opts.currSlide ) {
+                // wrap around on the right
+                moveBy = this.getScroll( opts, vert, opts.currSlide, opts.slideCount-opts.currSlide );
+                moveBy += this.getScroll( opts, vert, 0, opts.nextSlide );
                 callback = this.genCallback( opts, fwd, vert, callback );
             }
-            else if ( !fwd && opts.nextSlide == opts.slideCount - 1 ) {
-                // moving from first slide to last
-                moveBy = this.getDim( opts, opts.currSlide, vert );
+            else if ( !fwd && opts.nextSlide > opts.currSlide ) {
+                // wrap around on the left
+                moveBy = this.getScroll( opts, vert, opts.nextSlide, opts.slideCount-opts.nextSlide );
+                moveBy += this.getScroll( opts, vert, 0, opts.currSlide );
                 callback = this.genCallback( opts, fwd, vert, callback );
             }
             else {

[poisonkitty]

@gabrielfin do you have a working example of your "hops" working? i'd love to see it in action, as i desperately need to find a way to step through multiple images at a time. thanks!

[poisonkitty]

@gabrielfin never mind, got it going. works great! thanks!!!

[ninedoors]

@gabrielfin or @poisonkitty can one of you post the working code? I can't seem to get this to work properly. Thanks

[ninedoors]

@gabrielfin or @poisonkitty I got it working, forgot was missing a ; from the copy paste. Thanks for the code @gabrielfin

[davorpeic]

+1 for official solution,

the code pasted here works 50-50, going forward works ok, but going back shows empty slides (visibility:hidden)

[flyarrowplane]

+1 here, too.

[phenaproxima]

+1 from me too.

[wmitchellUK]

+1

@gabrielfin I'm using your soln as well. I have noticed tho as the above people have said that circular/wrap doesn't work properly ie (allowWrap=true) also the disabledClass functionality for your prev/next buttons doesn't work correctly when doing allowWrap=false

I am seeing my issues when you proceed to the end of your list of hops.

[asdat]

or you can just hide some pagers, for example, you need to slide elements every 3rd, then you just need only #pager span:nth-child(3n+2),#pager span:nth-child(3n+3){display:none;}

[visutech]

@asdat your CSS solution was easiest to implement +1

[asdat]

yes, but it works only for pagers, next/prev slides only next or prev, for prev/next navigation better overwrite prev/next sliding without using prev/next from cycle2, later i'll make an example and show it

[amityweb]

Just curious if an official version is going to be implemented? The only reason we dont use Carousel is because it moves 1 at a time which quite frankly is very annoying and dont understand why one anyone would do that. The user has already seen ALL images in the row, he wants to see the next row without clicking x number of times. Thanks!

[visutech]

@amityweb - it would be good if this could be added to the cycle carousel plugin, as I think it should reside with that. If you need a quick fix though, the css workaround does work (probably only on browsers that support the nth child).

[BenRacicot]

+1 - follow me on Twitter for chat about this @BenRacicot

I +1'ed this yesterday but was handcuffed to the project: I've built this (for a carousel type implementation), with some help, which works to move 3 slides at a time.

$('.slides').on('cycle-update-view', function (e, optionHash, slideOptionsHash, currSlideEl) {
    // +1 brings us current from the zero index
    currSlide = optionHash.currSlide + 1;
    fullCount = optionHash.slideCount;
});

$('.next').on( 'click', function() {
    $(this).prev('.slides').cycle('goto', currSlide + 2);
});

$('.prev').on( 'click', function() {
    var minus = currSlide - 4;
    $(this).next('.slides').cycle('goto', minus);
});

[jnz31]

@BenRacicot thanks for your work. this works somehow but is not "perfect". mine isn't eather, but lets call it improved.. currSlide + 2 could also make an invalid result, lets say your slideshow is 7 slides long and the current slide is 7, then next would be 9, but since 9 does not exist, the slideshow will do nothing. with this solution it jumps to slide 0 (zero-indexed).

plus i made it variable:

1. if the current slide has class skip, then skip the next slide. if not proceed as normal (+1).

var cycle_all, cycle_next;

$(".slideshow").on("cycle-update-view", function (e, optionHash, slideOptionsHash, currSlideEl) {
    cycle_all = optionHash.slideCount;
    if ( $( currSlideEl ).is(".skip") ) {
        cycle_next = optionHash.currSlide + 2;
    } else {
        cycle_next = optionHash.currSlide + 1;
    }
    if ( cycle_next >= cycle_all ) {
        cycle_next = 0;
    }
});

$(".next").on( "click", function() {
    $(".slideshow").cycle( "goto", cycle_next );
});

(this only includes next since i don't needed prev..)

[che-wf]

+1

This worked perfectly! Thank you!

[asdat]

why don't you think about nested slideshows? for example n=3 you have HTML

<div class="cycle-slideshow" 
    data-cycle-fx=scrollHorz
    data-cycle-timeout=0
    data-cycle-slides="> div.slide"
    >
    <div class="cycle-prev"></div>
    <div class="cycle-next"></div>
    <div class="slide">
       <img src="http://malsup.github.io/images/p1.jpg">
       <img src="http://malsup.github.io/images/p2.jpg">
       <img src="http://malsup.github.io/images/p3.jpg">
    </div>
    <div class="slide">
       <img src="http://malsup.github.io/images/p4.jpg">
       <img src="http://malsup.github.io/images/p1.jpg">
       <img src="http://malsup.github.io/images/p2.jpg">
    </div>
</div>

then even pagers would work fine

the easiest decition fo sliding any n element is to slide n times next/prev HTML

<div class="prev"></div>
<div class="next"></div>
<div class="cycle-slideshow" 
    data-cycle-fx=scrollHorz
    data-cycle-timeout=0
    data-slides-perclick="3"
    >
    <img src="http://malsup.github.io/images/p1.jpg">
    <img src="http://malsup.github.io/images/p2.jpg">
    <img src="http://malsup.github.io/images/p3.jpg">
    <img src="http://malsup.github.io/images/p4.jpg">
    <img src="http://malsup.github.io/images/p1.jpg">
    <img src="http://malsup.github.io/images/p2.jpg">
</div>

JS

jQuery('div.next').click(function(){
  e.preventDefault();
  var count=jQuery('.cycle-slideshow').date('slides-perclick');
  for (i = 0; i < count; i++) { 
       jQuery('.cycle-slideshow').cycle('next');
  }
});
jQuery('div.prev').click(function(){
  e.preventDefault();
  var count=jQuery('.cycle-slideshow').date('slides-perclick');
  for (i = 0; i < count; i++) { 
       jQuery('.cycle-slideshow').cycle('prev');
  }
});

code not best, but easier to understand

[mledwards]

Did this ever get added to the official plugin?

[MariuszDabrowski]

Same question, need to skip multiple images at once - is there an official way to do this?

[shawnholt]

+1 for multple (like a slider) and if you do a web search there are a billion other people wanting to do this :+1:

[Seb33300]

+1 waiting for this feature for a long time!

[tangst]

Is this feature implemented in the carousel plugin? The demo page still shows the carousel moving only one slide at a time. http://jquery.malsup.com/cycle2/demo/carousel.php

[gabrielfin]

Hi there! I just applied my patch to a fork so it's easier if anyone else wants to use it. I also fixed the issue with allowWrap=false and disabling the "next" button (@wmitchellUK). https://github.com/gabrielfin/cycle2/blob/issue-%23106/src/jquery.cycle2.carousel.js

[mledwards]

You little darling! :+1:

[KZNcode]

@gabrielfin doesn't work with allow-wrap: false