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How to restrict scrolling to the div that mouse is currently hovering?

I have a div name scrollable and whenever I hover mouse over it I want scrolling limited to this div only so that after reaching top/bottom of the div, scrolling will be stuck to the div. I've used the following code:
<div class="scrollable" style="overflow-y: scroll; height: 2px;"
onmouseover="document.body.style.overflow='hidden'"
onmouseout="document.body.style.overflow='auto'" >
Some text<br>sometext<br>sometext
</div>
Doing this gets the job done, but only problem as main scrollbar is hidden the webpage looks weird everytime I hover over '.scrollable'
Also using window.onwheel=function(){return false;} doesnt help as it prevents scrolling of anyelement.
Is there a way to enable scrolling only on hovered div and not on others while keeping main page scrollbar visible?
Thank you

You can disable scrolling without hiding the scrollbar, check this post.
Using jQuery, this would lead to:
$(".scroll").hover(function() {
var oldScrollPos = $(window).scrollTop();
$(window).on('scroll.scrolldisabler', function(event) {
$(window).scrollTop(oldScrollPos);
event.preventDefault();
});
}, function() {
$(window).off('scroll.scrolldisabler');
});
Check it out.

For me, hopefully can work
$('body').on('mousewheel', '.someDIVClass', (e: any) => {
if (e.originalEvent.wheelDelta / 120 > 0) {
// You can get scroll value here to do other things
}
else {
// You can get scroll value here to do other things
}
// This will prevent window to scroll
e.preventDefault();
e.stopPropagation();
});

Prevent parent page from scrolling when mouse is over embedded iframe in Firefox

...without limiting the scroll inside the iframe or the need to specifically name/tag all scrollable elements.
Imagine google maps widget embedded in parent page. When you zoom in the widget you don't want the parent page to scroll, obviously.
I thought an answer to my previous question solved the problem:
While scrolling inside an iframe, the body doesn't know anything about
what happens there. But when iframe scroller reach the bottom or the
top, it pass scrolling to body.
Cancel the event that propagates from the iframe.
But the solution does not work in Firefox because Firefox will not - by design - propagate events captured by iframe to the parent page, yet strangely it will scroll the parent page. See jsfiddle here.
$('body').bind('mousewheel DOMMouseScroll', onWheel);
function onWheel (e){
if (e.target === iframe)
e.preventDefault();
console.log(e);
}
So, how do I prevent page from scrolling when user zooms content in embedded iframe, in Firefox?

Since it is a bug in Firefox, the workaround is to work directly with the scroll event, instead of the mousewheel / DOMMouseScroll ones.
The way I did: When user enters the mouse over the iframe, I set a flag to true, and when he leaves the mouse out there, I set it back to false.
Then, when user tries to scroll, but the mouse arrow is inside the iframe, I prevent the parent window scrolling. But, unfortunately, you can't prevent the window scrolling with the usual e.preventDefault() method, so we still need another workaround here, forcing the window to scroll exactly to the X and Y positions it was already before.
The full code:
(function(w) {
var s = { insideIframe: false }
$(iframe).mouseenter(function() {
s.insideIframe = true;
s.scrollX = w.scrollX;
s.scrollY = w.scrollY;
}).mouseleave(function() {
s.insideIframe = false;
});
$(document).scroll(function() {
if (s.insideIframe)
w.scrollTo(s.scrollX, s.scrollY);
});
})(window);
I've created an immediately executed function to prevent defining the s variable in the global scope.
Fiddle working: http://jsfiddle.net/qznujqjs/16/
Edit
Since your question was not tagged with jQuery (although inside it, you've showed a code using the library), the solution with vanilla JS is as simple as the above one:
(function(w) {
var s = { insideIframe: false }
iframe.addEventListener('mouseenter', function() {
s.insideIframe = true;
s.scrollX = w.scrollX;
s.scrollY = w.scrollY;
});
iframe.addEventListener('mouseleave', function() {
s.insideIframe = false;
});
document.addEventListener('scroll', function() {
if (s.insideIframe)
w.scrollTo(s.scrollX, s.scrollY);
});
})(window);

Given all the prerequisites, I think the following is the sanest way to make this work in Firefox.
Wrap your iframe with a div which is a little bit shorter to enable vertical scrolling in it:
<div id="wrapper" style="height:190px; width:200px; overflow-y: auto; overflow-x: hidden;">
<iframe id="iframeid" height="200px" width="200px" src="about:blank">
</iframe>
</div>
Now you can center the iframe vertically and re-position it every time
the wrapper receives a scroll event (it will occur when a user tries to scroll away at frame edges):
var topOffset = 3;
wrapper.scrollTop(topOffset);
wrapper.on("scroll", function(e) {
wrapper.scrollTop(topOffset);
});
Combine this with your previous fix for Chrome, and it should cover all major browsers. Here is a working example - http://jsfiddle.net/o2tk05ab/5/
The only outstanding issue will be the visible vertical scrollbar on a wrapper div. There are several ways to go about it, for instance - Hide scroll bar, but still being able to scroll

I think that will solve your problem
it solved mine
var myElem=function(event){
return $(event.toElement).closest('.slimScrollDiv')
}
$(document).mouseover(function(e){
window.isOnSub=myElem(e).length>0
})
$(document).on('mousewheel',function(e){
if(window.isOnSub){
console.log(e.originalEvent.wheelDelta);
if( myElem(e).prop('scrollHeight')-myElem(e).scrollTop()<=myElem(e).height()&&(e.originalEvent.wheelDelta<0)){
e.preventDefault()
}
}
})
replace '.slimScrollDiv' with the element selector you want to
prevent parent scroll while your mouse is on it
http://jsbin.com/cutube/1/edit?html,js,output

Switch tabs based on mouse scroll

I would like to have a widget on a webpage containing a number of tabs. When the user scrolls the page and the widget comes in to view and he keeps scrolling down, the tabs should be activated one by one (without the page scrolling further down). Once the last tab is showing, the page should resume scrolling as usual. Is this doable using JS/jQuery?
UPDATE:
Since this seems too broad a question:
The problem is, I don't know how to use the scroll offset and prevent the page from scrolling down until I decide it can resume its normal behavior
UPDATE 2
I created This fiddle,
$(document).ready(function(){
$('#tabbed').mouseover(function(){
$(this).focus();
}).scroll(function(){
console.log("scrolling tabs");
});
$(window).scroll(function(evt){
var scrollPos = $(this).scrollTop()
console.log(scrollPos);
// BULLETPROOF WAY TO DETECT IF THE MOUSE IS OVER THE
// SCROLLABLE DIV AND GIVE IT FOCUS HERE?
});
});
it contains a long page and a scrollable div among its contents. The only problem is that the div starts catching scroll events only if I move my mouse. If I could find a bulletproof way to activate the scrolling div whenever the mouse is over it I'm there. Any ideas?

You can't prevent scrolling with javascript. Using iframes and divs with scroll will only work if the mouse is over them.
You can cancel the mouse wheel and keys events related to the scrolling, however the user will be able to scroll using the scrollbar (more here).
Another approach is leaving an empty area and fixing your widget inside this area, like in this working example
$(window).bind('scroll', function()
{
var scroll = $(window).scrollTop(),
innerHeight = window.innerHeight || $(window).height(),
fooScroll = $('#fooScroll'),
emptyArea = $('#emptyArea'),
offset = emptyArea.offset(),
fixedClass = 'fixed';
if(scroll > offset.top)
{
if(scroll < offset.top + emptyArea.height() - fooScroll.height())
{
fooScroll.addClass(fixedClass);
fooScroll.css("top", 0);
}
else
{
fooScroll.removeClass(fixedClass);
fooScroll.css("top", emptyArea.height() - fooScroll.height());
}
}
else
{
fooScroll.removeClass(fixedClass);
fooScroll.css("top", 0);
}
});
Then you can change the tabs while the page is scrolling.

You should be able to do this. You can use the jQuery scroll event to run your own code whenever the user scrolls up or down. Also, so long as you call e.preventDefault() whenever the scroll event is fired, you can prevent the whole window from scrolling up or down.

Stop page from scrolling if hovering div [duplicate]

This question already has answers here:
Prevent scrolling of parent element when inner element scroll position reaches top/bottom?
(32 answers)
Closed 9 years ago.
I have a div that is scrollable, but whenever you reach the bottom/top of it, it begins to scroll the entire page. That could be annoying for users who scroll fast, and then the entire page starts scrolling unexpectedly.
I need something where if you are hovering over the div, the page is not scrollable.
I have tried this by adding CSS when I hover the div...
body {
overflow:hidden;
}
...It works but there is one problem. The scrollbar disappears and that looks kind of stupid to have it disappearing/reappearing. Any way to achieve the same effect but keep the scrollbar visible? I have seen it done with Facebook chat.

Here is a very simple way to stop the propagation with no plugins, just jQuery.
Update: The code has been updated to work correctly in IE9+. Have not tested in previous versions.
First, create a class on your <div> to mark it as having this behavior. In my example, I use the class .Scrollable.
<div class="Scrollable">
<!-- A bunch of HTML here which will create scrolling -->
</div>
The jQuery to disable is:
$('.Scrollable').on('DOMMouseScroll mousewheel', function(ev) {
var $this = $(this),
scrollTop = this.scrollTop,
scrollHeight = this.scrollHeight,
height = $this.height(),
delta = (ev.type == 'DOMMouseScroll' ?
ev.originalEvent.detail * -40 :
ev.originalEvent.wheelDelta),
up = delta > 0;
var prevent = function() {
ev.stopPropagation();
ev.preventDefault();
ev.returnValue = false;
return false;
}
if (!up && -delta > scrollHeight - height - scrollTop) {
// Scrolling down, but this will take us past the bottom.
$this.scrollTop(scrollHeight);
return prevent();
} else if (up && delta > scrollTop) {
// Scrolling up, but this will take us past the top.
$this.scrollTop(0);
return prevent();
}
});
In essence, what this does is to detect which direction the scrolling is being requested in (based on the originalEvent.wheelDelta: positive = up, negative = down). If the requested delta of the mousewheel event would move scrolling past the top or bottom of the <div>, cancel the event.
In IE, especially, scrolling events which go past a child element's scrollable area then roll up to parent elements, and the scrolling continues regardless of the event being canceled. Because we cancel the event in any case, and then control the scrolling on the child through jQuery, this is prevented.
This is loosely based on the way that this question solves the problem, but does not require the plugin, and is cross-browser compliant with IE9+.
Here is a working jsFiddle demonstrating the code in-action.
Here is a working jsFiddle demonstrating the code in-action, and updated to work with IE.
Here is a working jsFiddle demonstrating the code in-action, and updated to work with IE and FireFox. See this post for more details about the necessity of the changes.

maybe have a look to
How to disable scrolling temporarily?
This is a sample to stop and activate scroll

prevent window for scrolling after div box scrolling

I have a small div box that has a vertical scroll bar and sits within an html page that also has a vertical scroll bar.
My problem is when the user reaches the end of the small DIV box scrolling, the ENTIRE html page that contains the div box then begins to scroll (assuming the user is scrolling via the mouse scroll and NOT by actually clicking the DIV box scroll buttons themselves)
is there a way to prevent the entire html page from scrolling once a user reaches in end of my small DIV box scroll? Any help would be much appreciated! Thank you!
I have tried this (but it cancels scrolling for even the div box):
if (window.addEventListener)
/** DOMMouseScroll is for mozilla. */
window.addEventListener('DOMMouseScroll', handleWheelEvent, false);
/** IE/Opera. */
window.onmousewheel = document.onmousewheel = handleWheelEvent;
function handleWheelEvent(e){
e.preventDefault();
}

I didn't look too much into your code and the problem, but I wanted to throw out a suggestion before I move on :P.
window.addEventListener
and
document.onmousewheel = handleWheelEvent;
are normally good ways to apply what you want to do the ENTIRE document, whereas if you want to apply a specific value (in this case scroll = false) to a specific element, then you need to set the reference to that specific reference (i.e. getElementById() and then it applies only to the element of the document).
Idk - maybe that helps, maybe it doesn't :P good luck.
-J

You would need to modify the handleWheelEvent function and check the srcElement property of the e event and call preventDefault() when it's not scrolling the DIV box. Here's a link with some code examples:
http://www.webdeveloper.com/forum/archive/index.php/t-158824.html

I had a similar problem. Google led me here. Over 1700 views, in 4 years, of an incomplete answer. I figured once I had coded a solution, I'd pop it in a JSFiddle and share it. Better late than never.
Tested on MacOSX / Chrome.
http://jsfiddle.net/mF8Pr/
My problem involved being able to scroll inside a textarea, within a lightbox, and disabling scrolling on the rest of the page beneath the overlay.
bind mouse wheel event to document
when event fires (optional: test to make sure overlay is visible)
check target is obj we want to have scrolling enabled
make sure 0 < obj.scrollTop < (obj.scrollHeight - obj.clientHeight)
check direction of attempted scroll event.originalEvent.deltaY
UP == negative
DOWN == positive
event.preventDefault()
$(document).bind('mousewheel', function(e){
//if($overlay.is(':visible'))
{
if(e.target != null && e.target.type != 'textarea')
{
e.preventDefault();
}
else
{
if(e.originalEvent.deltaY < 0 && e.target.scrollTop == 0)
{
e.preventDefault(); // already at top
}
else if(e.originalEvent.deltaY > 0 && e.target.scrollTop >=
(e.target.scrollHeight - e.target.clientHeight))
{
// must use greater than because sometimes
// the math is wrong by 1px
e.preventDefault(); // already at bottom
}
}
}
});
-Amanda