Develop Reference

Scroll both divs on mousewheel scroll on one another

I am using this code http://jsbin.com/uhozam/1/edit?html,output for scrolling divs but when i change in code, scroll both divs on mouse wheel of one another, then issue is that mousewheel working too slow.

Try this:
var subCatContainer = $(".sub-category-container");
subCatContainer.scroll(function() {
subCatContainer.scrollLeft($(this).scrollLeft());
});
DEMO

implementing horizontal scrolling with two finger gesture

I am trying to implement horizontal scrolling using a two finger gesture on laptops. I am trying to find a solution that works in IE, chrome and safari. Currently I have tried to using the mouse wheel event to simply capture the scrolling Event. I thought I could use the deltaX and deltaY to determine if it is scrolling vertically and horizontally.
$('#ryan').on('mousewheel', function (event) {
if (event.originalEvent.deltaX > 0) {
console.log(event.originalEvent.deltaX);
console.log("horizontally");
console.log(event.deltaX);
}
Here is a fiddle which is not working. I am also not sure if there is another event I am missing.

I have never done it but jquery has a well documented element handler for scroll
I would try
$('#ryan').scroll(function(event) {
if (event.originalEvent.deltaX > 0) {
console.log(event.originalEvent.deltaX);
console.log("horizontally");
console.log(event.deltaX);
});
http://api.jquery.com/scroll/

Detect scrolling attempts in overflow:hidden page?

I want to detect when the user is trying to scroll up or down on my page, but since I don't want to allow the actual scrolling I have set an overflow:hidden body. The code is something like this:
$('html,body').css('overflow','hidden');
$(window).scroll(function(event){
console.log("scroll");
});
The problem is that since there is no actual scrolling I cannot fire the event, I have thought about removing the overflow style and somehow preventing scrolls but I cannot figure out how to do it.
Anyway is there a way to fix the scrolling while detecting scrolling attempts? Thanks

Try using jQuery mousewheel https://github.com/brandonaaron/jquery-mousewheel. You can detect the mousewheel movement. The other option is to not set the overflow to hidden but instead catch the scroll attempt and scroll them yourself. There are also a bunch of libraries for JS scrolling, I like http://manos.malihu.gr/jquery-custom-content-scroller/.

Here's a jQuery-solution.
$(document).bind('mousewheel', function(e) {
var delta = e.originalEvent.wheelDelta;
console.log('The mouse delta is : ' + delta);
});
jQuery Doc - .bind()

With javascript / query, is there a way to just "nudge" or "flick" the scroll so it's interruptible by the user (better description within)

I want some js to automatically scroll just a slight bit down the page, however I also want this scroll to be interruptible by the user.
When using jquery to auto scroll, when you animate the scroll with .animate and then the user starts scrolling while the animation scroll is still going they interact with each other and create a strange jumping effect.
Is there a way to make so when the user scroll during a javascript scroll it just stop the javascript scroll?

It can't be done since you can't know if the end-user scrolled or you scrolled the page via javascript.
A scroll event is sent whenever the element's scroll position changes, regardless of the cause. A mouse click or drag on the scroll bar, dragging inside the element, pressing the arrow keys, or using the mouse's scroll wheel could cause this event.
Docs
What I tried to do but failed because the above:
// callback for the scroll event
$(document.body).scroll(function(){
// Stop the scrolling!
$('html, body').stop();
});
A not working demo...

The other users answer is actually incorrect, it is possible and has been answered before:
How can I differentiate a manual scroll (via mousewheel/scrollbar) from a Javascript/jQuery scroll?
Check the answer
"$('body,html').bind('scroll mousedown wheel DOMMouseScroll mousewheel keyup', function(e){
if ( e.which > 0 || e.type == "mousedown" || e.type == "mousewheel"){
$("html,body").stop();
}
})"
I've updated the previous users JS Fiddle to work with the proposed solution and it works perfectly.
http://jsfiddle.net/Lwvba/7/

JQuery scroll on hover or mousedown

I have a gallery with thumbnails inside a container with overflow:hidden which I need to scroll. I already have it scrolling in steps on click, using .scrollLeft(). How to make it scroll smoothly on mouseover, or preferably on mousedown to the end of list? I'm looking for a way without plugins.
This is what I got for scroll on click.
$("#slider").scrollLeft($("#slider").scrollLeft() + 200);

do you mean something like:
$("#someEle").hover(function(){
$("#slider").scrollLeft($("#slider").scrollLeft() + 200);
},function(){
$("#slider").stop();
});