I want to automatically scroll a div based on mouse position using jQuery.
If you see this fiddle here, you can see a number of images that are horizontally ordered in a div that is scrollable:
<div id="parent">
<div id="propertyThumbnails">
<img src=".jpg" />
<img src=".jpg" />
<img src=".jpg" />
<img src=".jpg" />
<img src=".jpg" />
</div>
</div>
CSS:
#parent {
height: 300px;
width: 100%;
background: #ddd;
}
#propertyThumbnails {
background: #666;
height: 80px;
white-space: nowrap;
overflow: scroll;
}
#propertyThumbnails img {
width: 125px;
height: 80px;
display: inline-block;
margin: 3px;
margin-right: 0;
opacity: 0.6;
}
I found out that you can use $("#container").scrollLeft(position) to set the position of the scroller but I want to do it based on the mouse position of the parent. So that when the mouse is fully to the right hand side, the right most image displays, and when the mouse is fully left, the left most image displays.
How can I do this?
I want to automatically scroll a div based on mouse position using jQuery.
If you see this fiddle here, you can see a number of images that are horizontally ordered in a div that is scrollable:
<div id="parent">
<div id="propertyThumbnails">
<img src="http://www.millport/wp-content/uploads/2013/05/Flower-festival.jpg" />
<img src="http://www.millport/wp-content/uploads/2013/05/Flower-festival.jpg" />
<img src="http://www.millport/wp-content/uploads/2013/05/Flower-festival.jpg" />
<img src="http://www.millport/wp-content/uploads/2013/05/Flower-festival.jpg" />
<img src="http://www.millport/wp-content/uploads/2013/05/Flower-festival.jpg" />
</div>
</div>
CSS:
#parent {
height: 300px;
width: 100%;
background: #ddd;
}
#propertyThumbnails {
background: #666;
height: 80px;
white-space: nowrap;
overflow: scroll;
}
#propertyThumbnails img {
width: 125px;
height: 80px;
display: inline-block;
margin: 3px;
margin-right: 0;
opacity: 0.6;
}
I found out that you can use $("#container").scrollLeft(position) to set the position of the scroller but I want to do it based on the mouse position of the parent. So that when the mouse is fully to the right hand side, the right most image displays, and when the mouse is fully left, the left most image displays.
How can I do this?
Share Improve this question edited Jun 25, 2013 at 21:56 Roko C. Buljan 206k41 gold badges327 silver badges336 bronze badges asked Jun 25, 2013 at 21:45 ChrisChris 27.4k49 gold badges206 silver badges357 bronze badges 1- possible duplicate of How to properly scroll an overflowing div based on mouse position within its container – Rob W Commented Jun 25, 2013 at 21:47
2 Answers
Reset to default 10A slightly different way to achieve what you need:
jQuery(function($) {
$(window).load(function() {
var $gal = $("#propertyThumbnails"),
galW = $gal.outerWidth(true),
galSW = $gal[0].scrollWidth,
wDiff = (galSW / galW) - 1, // widths difference ratio
mPadd = 60, // Mousemove Padding
damp = 20, // Mousemove response softness
mX = 0, // Real mouse position
mX2 = 0, // Modified mouse position
posX = 0,
mmAA = galW - (mPadd * 2), // The mousemove available area
mmAAr = (galW / mmAA); // get available mousemove fidderence ratio
$gal.mousemove(function(e) {
mX = e.pageX - $(this).offset().left;
mX2 = Math.min(Math.max(0, mX - mPadd), mmAA) * mmAAr;
});
setInterval(function() {
posX += (mX2 - posX) / damp; // zeno's paradox equation "catching delay"
$gal.scrollLeft(posX * wDiff);
}, 10);
});
});#parent {
position: relative;
margin: 0 auto;
width: 60%;
height: 260px;
}
#propertyThumbnails {
position: relative;
overflow: hidden;
background: #444;
width: 100%;
height: 262px;
white-space: nowrap;
}
#propertyThumbnails img {
vertical-align: middle;
height: 100%;
display: inline;
margin-left: -4px;
}<div id="parent">
<div id="propertyThumbnails">
<img src="//placehold.it/600x400/0bf" />
<img src="//placehold.it/600x400/f0b" />
<img src="//placehold.it/600x400/0fb" />
<img src="//placehold.it/600x400/b0f" />
<img src="//placehold.it/600x400/bf0" />
</div>
</div>
<script src="//ajax.googleapis./ajax/libs/jquery/2.1.1/jquery.min.js"></script>where mPadd is the area (in PX, at the left and right border zone) without any sensitivity to prevent user frustrations :)
this should at least get you headed in the right direction.
var parent = $('#parent');
var img = $('img:first-child');
parent.on('mousemove', function(e) {
mouseX = e.pageX
img.css('margin-left',-mouseX/parent.width()*100);
});
http://jsfiddle/xWcXt/4/