I have a div that has background:transparent, along with border. Underneath this div, I have more elements.
Currently, I'm able to click the underlying elements when I click outside of the overlay div. However, I'm unable to click the underlying elements when clicking directly on the overlay div.
I want to be able to click through this div so that I can click on the underlying elements.
Yes, you CAN do this.
Using pointer-events: none along with CSS conditional statements for IE11 (does not work in IE10 or below), you can get a cross browser compatible solution for this problem.
Using AlphaImageLoader, you can even put transparent .PNG/.GIFs in the overlay div and have clicks flow through to elements underneath.
CSS:
pointer-events: none;
background: url('your_transparent.png');
IE11 conditional:
filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='your_transparent.png', sizingMethod='scale');
background: none !important;
Here is a basic example page with all the code.
Yes, you CAN force overlapping layers to pass through (ignore) click events.
PLUS you CAN have specific children excluded from this behavior...
You can do this, using pointer-events
pointer-events influences the reaction to click-, tap-, scroll- und hover events.
In a layer that should ignore / pass-through mentioned events you set
pointer-events: none;
Children of that unresponsive layer that need to react mouse / tap events again need:
pointer-events: auto;
That second part is very helpful if you work with multiple overlapping div layers (probably some parents being transparent), where you need to be able to click on child elements and only that child elements.
Example usage:
.parent {
pointer-events:none;
}
.child {
pointer-events:auto;
}
<div class="parent">
I'm unresponsive
I'm clickable again, wohoo !
</div>
Allowing the user to click through a div to the underlying element depends on the browser. All modern browsers, including Firefox, Chrome, Safari, and Opera, understand pointer-events:none.
For IE, it depends on the background. If the background is transparent, clickthrough works without you needing to do anything. On the other hand, for something like background:white; opacity:0; filter:Alpha(opacity=0);, IE needs manual event forwarding.
See a JSFiddle test and CanIUse pointer events.
I'm adding this answer because I didn’t see it here in full. I was able to do this using elementFromPoint. So basically:
attach a click to the div you want to be clicked through
hide it
determine what element the pointer is on
fire the click on the element there.
var range-selector= $("")
.css("position", "absolute").addClass("range-selector")
.appendTo("")
.click(function(e) {
_range-selector.hide();
$(document.elementFromPoint(e.clientX,e.clientY)).trigger("click");
});
In my case the overlaying div is absolutely positioned—I am not sure if this makes a difference. This works on IE8/9, Safari Chrome and Firefox at least.
Hide overlaying the element
Determine cursor coordinates
Get element on those coordinates
Trigger click on element
Show overlaying element again
$('#elementontop').click(e => {
$('#elementontop').hide();
$(document.elementFromPoint(e.clientX, e.clientY)).trigger("click");
$('#elementontop').show();
});
I needed to do this and decided to take this route:
$('.overlay').click(function(e){
var left = $(window).scrollLeft();
var top = $(window).scrollTop();
//hide the overlay for now so the document can find the underlying elements
$(this).css('display','none');
//use the current scroll position to deduct from the click position
$(document.elementFromPoint(e.pageX-left, e.pageY-top)).click();
//show the overlay again
$(this).css('display','block');
});
I currently work with canvas speech balloons. But because the balloon with the pointer is wrapped in a div, some links under it aren't click able anymore. I cant use extjs in this case.
See basic example for my speech balloon tutorial requires HTML5
So I decided to collect all link coordinates from inside the balloons in an array.
var clickarray=[];
function getcoo(thatdiv){
thatdiv.find(".link").each(function(){
var offset=$(this).offset();
clickarray.unshift([(offset.left),
(offset.top),
(offset.left+$(this).width()),
(offset.top+$(this).height()),
($(this).attr('name')),
1]);
});
}
I call this function on each (new) balloon. It grabs the coordinates of the left/top and right/down corners of a link.class - additionally the name attribute for what to do if someone clicks in that coordinates and I loved to set a 1 which means that it wasn't clicked jet. And unshift this array to the clickarray. You could use push too.
To work with that array:
$("body").click(function(event){
event.preventDefault();//if it is a a-tag
var x=event.pageX;
var y=event.pageY;
var job="";
for(var i in clickarray){
if(x>=clickarray[i][0] && x<=clickarray[i][2] && y>=clickarray[i][1] && y<=clickarray[i][3] && clickarray[i][5]==1){
job=clickarray[i][4];
clickarray[i][5]=0;//set to allready clicked
break;
}
}
if(job.length>0){
// --do some thing with the job --
}
});
This function proofs the coordinates of a body click event or whether it was already clicked and returns the name attribute. I think it is not necessary to go deeper, but you see it is not that complicate.
Hope in was enlish...
Another idea to try (situationally) would be to:
Put the content you want in a div;
Put the non-clicking overlay over the entire page with a z-index higher,
make another cropped copy of the original div
overlay and abs position the copy div in the same place as the original content you want to be clickable with an even higher z-index?
Any thoughts?
I think the event.stopPropagation(); should be mentioned here as well. Add this to the Click function of your button.
Prevents the event from bubbling up the DOM tree, preventing any parent handlers from being notified of the event.
Just wrap a tag around all the HTML extract, for example
<a href="/categories/1">
<img alt="test1" class="img-responsive" src="/assets/photo.jpg" />
<div class="caption bg-orange">
<h2>
test1
</h2>
</div>
</a>
in my example my caption class has hover effects, that with pointer-events:none; you just will lose
wrapping the content will keep your hover effects and you can click in all the picture, div included, regards!
An easier way would be to inline the transparent background image using Data URIs as follows:
.click-through {
pointer-events: none;
background: url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7);
}
I think that you can consider changing your markup. If I am not wrong, you'd like to put an invisible layer above the document and your invisible markup may be preceding your document image (is this correct?).
Instead, I propose that you put the invisible right after the document image but changing the position to absolute.
Notice that you need a parent element to have position: relative and then you will be able to use this idea. Otherwise your absolute layer will be placed just in the top left corner.
An absolute position element is positioned relative to the first parent
element that has a position other than static.
If no such element is found, the containing block is html
Hope this helps. See here for more information about CSS positioning.
You can place an AP overlay like...
#overlay {
position: absolute;
top: -79px;
left: -60px;
height: 80px;
width: 380px;
z-index: 2;
background: url(fake.gif);
}
<div id="overlay"></div>
just put it over where you dont want ie cliked. Works in all.
This is not a precise answer for the question but may help in finding a workaround for it.
I had an image I was hiding on page load and displaying when waiting on an AJAX call then hiding again however...
I found the only way to display my image when loading the page then make it disappear and be able to click things where the image was located before hiding it was to put the image into a DIV, make the size of the DIV 10x10 pixels or small enough to prevent it causing an issue then hiding the containing div. This allowed the image to overflow the div while visible and when the div was hidden, only the divs area was affected by inability to click objects beneath and not the whole size of the image the DIV contained and was displaying.
I tried all the methods to hide the image including CSS display=none/block, opacity=0, hiding the image with hidden=true. All of them resulted in my image being hidden but the area where it was displayed to act like there was a cover over the stuff underneath so clicks and so on wouldn't act on the underlying objects. Once the image was inside a tiny DIV and I hid the tiny DIV, the entire area occupied by the image was clear and only the tiny area under the DIV I hid was affected but as I made it small enough (10x10 pixels), the issue was fixed (sort of).
I found this to be a dirty workaround for what should be a simple issue but I was not able to find any way to hide the object in its native format without a container. My object was in the form of etc. If anyone has a better way, please let me know.
I couldn't always use pointer-events: none in my scenario, because I wanted both the overlay and the underlying element(s) to be clickable / selectable.
The DOM structure looked like this:
<div id="outerElement">
<div id="canvas-wrapper">
<canvas id="overlay"></canvas>
</div>
<!-- Omitted: element(s) behind canvas that should still be selectable -->
</div>
(The outerElement, canvas-wrapper and canvas elements have the same size.)
To make the elements behind the canvas act normally (e.g. selectable, editable), I used the following code:
canvasWrapper.style.pointerEvents = 'none';
outerElement.addEventListener('mousedown', event => {
const clickedOnElementInCanvas = yourCheck // TODO: check if the event *would* click a canvas element.
if (!clickedOnElementInCanvas) {
// if necessary, add logic to deselect your canvas elements ...
wrapper.style.pointerEvents = 'none';
return true;
}
// Check if we emitted the event ourselves (avoid endless loop)
if (event.isTrusted) {
// Manually forward element to the canvas
const mouseEvent = new MouseEvent(event.type, event);
canvas.dispatchEvent(mouseEvent);
mouseEvent.stopPropagation();
}
return true;
});
Some canvas objects also came with input fields, so I had to allow keyboard events, too.
To do this, I had to update the pointerEvents property based on whether a canvas input field was currently focused or not:
onCanvasModified(canvas, () => {
const inputFieldInCanvasActive = // TODO: Check if an input field of the canvas is active.
wrapper.style.pointerEvents = inputFieldInCanvasActive ? 'auto' : 'none';
});
it doesn't work that way. the work around is to manually check the coordinates of the mouse click against the area occupied by each element.
area occupied by an element can found found by 1. getting the location of the element with respect to the top left of the page, and 2. the width and the height. a library like jQuery makes this pretty simple, although it can be done in plain js. adding an event handler for mousemove on the document object will provide continuous updates of the mouse position from the top and left of the page. deciding if the mouse is over any given object consists of checking if the mouse position is between the left, right, top and bottom edges of an element.
Nope, you can't click ‘through’ an element. You can get the co-ordinates of the click and try to work out what element was underneath the clicked element, but this is really tedious for browsers that don't have document.elementFromPoint. Then you still have to emulate the default action of clicking, which isn't necessarily trivial depending on what elements you have under there.
Since you've got a fully-transparent window area, you'll probably be better off implementing it as separate border elements around the outside, leaving the centre area free of obstruction so you can really just click straight through.
I have a navigation option. One of the option will always be active by default and will have a background color like this:
When I click on any other option, the background color should animate smoothly and move from previous option to the newly clicked option. I tried to search it but couldn't figure out the correct name of this effect. It should act like a switch but I want to build it for custom use with text written on the handlebar, which isn't possible in switch.
How do I achieve it using Vanilla JS.
Here is my JS fiddle link for what I have done: https://jsfiddle.net/1ex3y94g/1/
Code I use to toggle the background color:
function change(id1,id2) {
document.getElementById(id2).style.background="lightgreen";
document.getElementById(id1).style.background="red";
}
<div class="wrapper">
<div class="bar1" id="bar1" onclick="change('bar1','bar2')">
Option1
</div>
<div class="bar2" id="bar2" onclick="change('bar2','bar1')">
Option2
</div>
</div>
Like this: https://jsfiddle.net/72c5k4ub/19/
The two options are not animated at all. Create a "handle" div which translates from left to right depending on which side has been pressed. This handle just has the background color and no content. It lays behind the actual options (which do not have a background color). The handle does not impact layout (since it is display absolute). For the animation use transforms (for best performance. Not margin) with css animations (transform: translateX(100%)). 100% referes to the width of this element.
I have to do something like pexeso. When you hover element, it will flip front to back side (they have different texts) and when your mouse is out, it will fade from back to front side. This is example HTML, how it looks like:
<div class="pexeso">
<div class="pad">
<div class="front">1</div>
<div class="back">ONE</div>
</div>
etc...
There is some CSS, to look it well (it is in the jsFiddle source, attached bellow). Then Handling mouse enter and leave with jQuery:
$('.pexeso .pad').each(function() {
var el = $(this);
var back = el.find('.back');
el.on('mouseenter', function() {
back.removeAttr('style');
el.removeClass('before-fade').addClass('do-flip');
});
el.on('mouseleave', function() {
el.removeClass('do-flip').addClass('before-fade');
back.stop(true, true).fadeOut(250, function() {
el.removeClass('before-fade');
});
});
});
Here is full example in jsFiddle: DEMO
Try to hover any element from left or right side of your screen, it will works great. But now try to hover from top or bottom, it will do weird things to graphic and also, sometimes it stucks and remains invisible.
Probably know the problem: When you hover from top or bottom, it will start flipping, and when you are too slow, it also fires event mouseleave, because flipping is in progress and you are actually at empty space. Then it calls 1st function, then second, a lot of time and it got stuck. But I don't know how to fix it, can you help me?
Ok guys, don't try anymore, I already found a solution. Whoever is interested, how I fixed it, here is solution:
In CSS, make .back element always visible, so find this line &.do-flip { and add this style .back { display: block !important; }
In jQuery, there is no need to have back.removeAttr('style');, also this did mess with opacity style (fading effect)
Now wrap every "pad" with parent, for example .pad-container and give him exact sizes as .pads, now we will manipulate with him
Each function will take these wrappers, not "pads", so in jQuery $('.pexeso .pad-container').each(function() {...
Bind events mouseenter and mouseleave on this wrapper, but changing classes remain on "pads" and fadeOut effect on back element. Also, add function .show() to this back element before fadeOut.
That's all. Here is updated version: UPDATED DEMO
Is there any way to hover over an element that's already hidden. I am trying to mimic what Steam does with their arrow navigation on their home page. You'll notice that when you first get to the page, there are no arrows showing:
Then when you hover over the area where there should be an arrow, it shows itself:
I've tried setting my divs that contain the arrow images to display: none and have also tried visibility: hidden but neither seems to work with the hover or mouseover methods in jQuery. I would have thought visibility: hidden would make it work, but that doesn't seem to be the case. Is there any other way I can hide these divs from the start but still be able to have hover events work on them?
Set it to zero opacity instead:
$('#blah').hover(function() {
$(this).fadeTo(1,1);
},function() {
$(this).fadeTo(1,0);
});
http://jsfiddle.net/mblase75/bzaax/
You cannot hover over an invisible element or an undisplayed element. You can hover over a visible element and then use that to show a different previously hidden element. Or you can hover over a transparent element and make it opaque.
Here is an example of the opacity technique using just CSS, it would also work with jQuery's hover.
CSS:
#it {
opacity: 0;
width: 500px;
height:500px;
}
#it:hover {
opacity: 1;
}
Here is an example of showing one element when another is hovered over:
HTML:
<div id="me">Hover over me to display something else</div>
<div id="else">Something else</div>
jQuery:
$("#me").hover(function(){
$("#else").show();
},function(){
$("#else").hide();
});
Use the .fadeTo jQuery method to change the opacity of the element on hover state.
The jQuery site contains an example but something like this should suffice
$("element").hover(//On Hover Callback
function() {$(this).fadeOut(100);} ,
//Off Hover Callback
function() {$(this).fadeIn(500);})
From the jQuery Hover page.
You could set it to opacity: 0.
In order to make it cross-browser you probably would like to do it with jQuery tho.
One way to do this is by using an alternate hit-test div, such that it has no content, but when hovered over it shows the "arrow" div. When the "arrow" div (or the hit-test div) is exited, then the "arrow" div would be hidden once again.
Alternatively, you could use the same div for the hit-test and the "arrow", such that a background image is used for the visual elements of the div. When hovered, you could instruct the image's offset to be set to a position which would show the "arrow". When exited, you would set the offset of the background to a position where the arrow image would not longer be shown.
And, finally, if the content will always be in the same position as the hit-test area, you could set the opacity of the div to zero, and toggle accordingly.
You could set the opacity of the elements to 0. That would allow them to receive the hover events (actually mouseenter and mouseleave), but as a practical matter, make them invisible to users.
I have a bunch of images in a gallery on a new website im building and Im wanting to have content displayed when a user hovers over an image.
For example if a user hovered over a picture of a car in my gallery then a low opacity content div would fade over the entire image to show text and maybe a link.
I presume this effect could be done with a bit of JS or even CSS Transitions to give the fade.
I just need to know how to make a content box appear over the image on hover, possibly at 80% opacity.
Heres an example of what I have in mind:
Thanks for the help, if anyone could point me in the right direction it would be appreciated.
I can post more information if needed.
This is somewhat simple way of implementing a hover show and hide with jquery.
Working example: http://jsfiddle.net/va2B8/2/
jQuery ( http://jquery.com/ ):
$(document).ready(function() {
$("#Invisible").hide()
$("#hoverElement").hover(
function () {
$('#Invisible').stop().fadeTo("slow", 0.33);
},
function () {
$('#Invisible').stop().fadeOut("slow");
}
);
});
html:
<p id="hoverElement">This little piggy will show the invisible div.</p>
<div id="Invisible">This is the content of invisible div.</div>
css:
#Invisible { background: #222; color: #fff; }
Edit: I changed url for the working example cause i forgot to fade out on mouse out.
Edit2: Changed url again and changed the code cause i had some extra code there.. plus i thought that i might as well add those two .stop() in there so that it stops the animation If the mouse over or mouse out occurs while animation is going on.
( Without the stops one could hover in and out several times and then when he would stop, the animation would still keep going till it has done each animation as many times as he triggered it. You can test that in here http://jsfiddle.net/va2B8/1/ )
You can start using this fiddle :
http://jsfiddle.net/Christophe/2RN6E/3/
1 div containing image and span like :
<div class="image-hover">
<img src="" />
<span class="desc">text to be displayed when imae hover</span>
</div>
Update
All can be done with CSS...
http://jsfiddle.net/Christophe/2RN6E/4/
Here's an easy jQuery plugin you can implement: http://file.urin.take-uma.net/jquery.balloon.js-Demo.html
It works like this:
$(function() {
$('img').balloon(options);
});
This jQuery applied the balloon function to all images on the page. Here's your HTML:
<img src="example.png" alt="Here's your caption." />
The text in the balloon is going to be whatever is in the alt attribute for images and whatever is in the title attribute for other tags.
I've just done this:
http://twostepmedia.co.uk
It uses hoverintent jquery plugin so there is a delay of 250ms after the user hovers over to avoid erratic hover behaviour.