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 this problem in Safari and Chrome but not in IE.
When I click a button the mousedown event triggers some kind of CSS rule which makes it slightly wider.
Because of this it drops down onto the next row and the click event is not triggered.
It stays on the next row until the mouse button is released.
I'm working on a large existing site and it's difficult to isolate all the CSS, but I think this could be due to an effect inherent in the browser(s).
Is there a CSS way to stop any effects occuring when the button is clicked?
Thanks for your help.
This is the CSS I have found for :active / :hover.
I don't think this could cause it!
a:hover, a:active
{
text-decoration: none;
}
(The button is an image inside an anchor)
Open your page with Chrome. Right click on the element and select inspect element. On the right handside corner of the inspect element handler, you will see few icons.
Click on the middle one(Which is having a arrow. When you hover it a label will display as "Toggle element State").
Change the element state to active (and to focus if it didn't change anything), and now you will be able to see what css rules are used to apply those changes to your button(It can be a padding or width).
Since now you know what the rule is, you can undo it using another rule (Or using javascript). It's hard to say how to remove the effects without knowing what the effects are.
you can declare a class in css name it for exemple abortmousedowncss :
.abortmousedowncss{
width:yourwidth; !important /* this dont allow any css to overide it ;)*/
}
and you can apply it after with jquery like this :
$('#yourbutton').addClass("abortmousedowncss");
I have an interactive background that uses css to change opacity on hover. On top of this (absolute positioned) is a text layer. In order to allow for the background to react even with the text on top I have added css pointer-event:none to the div containing text.
This works well, but it would be better if I could still keep the ability to highlight the text.
Does anyone know away to limit which pointer-events are suppressed?
Actually you can't do what you want. If you disable pointer-event, text can't be selected. But you can do this functional by some jquery magic.
first you put background hover effects into some class:
.hov{background: black !important;} //just example
then assign it to hover effect:
$('#wrap').hover(function() {
$('#wrap').toggleClass("hov");
});
and translate hover event from you block into you background:
$('#block').hover(function(e) {
$('#wrap').trigger(e.type);
});
So look into fiddle and you'll understand
EXAMPLE
I have created this CSS drop down menu. The menu works flawless as it should, my only question
is how can I get the sub menus to stay open and not instantly disappear when the mouse is removed off of them?
My code is at this link,
http://fiddle.jshell.net/NJ4UP/
I have tried several things but nothing is seeming to do what I want. I would prefer not to use J-Query or JavaScript, as I'm not that familiar them, but any help will be greatly appreciated!!
All I want and need is for the sub-menus to not instantly disappear if the mouse is not hovering over them. I was thinking a timeout option or something that sets it to close after a predetermined amount of time (ie 5 seconds) or another menu or link is clicked.
Thanks in advanced.
In CSS you may expand area that covers <li> when hovered with a pseudo element : DEMO.
li:hover:before {
content:'';
position:absolute;
width:100px;
height:200px;
background:rgba(0,0,0,0.01);/* not 100% transparent, so it gets the mouse over */
}
In CSS you may delay transition to close your menu DEMO.
do not use display to hide/show the submenu
Use a rule that handles number value.
#menu ul > li ul {
position:absolute;
margin-left:-9999px;
transition:0s 0.5s;/* stay open 0.5sec before to hide again */
}
#menu ul > li:hover > ul {
margin:0;
transition:0s 0s;/* show ! don't wait */
}
You could check this out, maybe it helps:
http://www.w3schools.com/css/css3_transitions.asp
In CSS you may use the experimental rule pointer-events and HTML tabindex attribute .
pointer-events to control mouse events hover <a> in <li> first level.
tabindex for <li> first level , so it can be focused via click & tab.
The idea is:
to shortcut the click events on so <li tabindex="0"> can take the :focus and apply
same rule as :hover.
then once <li> has focus , to give back to ability to receive mouse events.
DEMO - CSS click open/close menu
it alows to open close menu via the key tab
At the moment i believe it is better to set a class instead tabindex and use javasript to toggle class on click , or at least to keep the :hover rule effective.
It can be done somehow for a two level menu too
I'm trying to create a rather unique effect. It's actually not that complicated, what I'm trying to do is build an experimental site, which I have already done. I just can't seem to figure out how to go about doing the final step.
So this is my site I'm tinkering with http://www.dig.ital.me/sandbox/about-me/
And what I'm trying to do is collapse the left-side bar that has the text in it : "Made in blah blah blah, etc." By clicking on the : " Click this to hide this " .
And I've tried going about doing an anchor link associated with a name link and calling the display:none when that link is clicked. However, it isn't working. So I thought I would try stackoverflow, on how I could about achieving this kind of effect where it collapses, and re-opens again.
#hide-option { color:#FFF; width:500px; height:500px; padding-left:170px;}
#hide-option:hover .fixedfooter {
display:none;
cursor:pointer; }
Here's a snippet of the hide-option div id. I've exhausted a lot of routes to try and achieve this effect but I cannot seem how to figure it out. I've tried the :onClick class, and nth-child classes, but nothing seems to work.
// Store the footer as a variable, so we don't have to keep calling jQuery's selector engine
// It's slower than a tortoise stuck in a traffic jam.
var target = $('.fixedfooter');
// Every time the hide-option link is clicked
$('#hide-option a').click(function() {
// If the left position of the target is 0
if(parseInt(target.css('left')) == 0) {
// Check the target is not animated and, if it is, animate off screen
!target.is(':animated') && target.animate({left: -751}, 250);
} else {
// Assume it's hidden, and put it back to the start
!target.is(':animated') && target.animate({left: 0}, 250);
}
// Stop the link being followed
return false;
});
JQuery, the JavaScript library, will solve it all for you.
$("el").bind("onclick",function(){$("el").toggle('slow');});
If you only want CSS3 (if you don't care about IE6-8), here's something you could try: http://jsbin.com/isunoz/6/edit
I've commented it as much as possible, I hope it helps :)
What I've done is to use a checkbox input to decide if the sidebar should be shown or not.
By putting the checkbox input element right before the sidebar element (div.fixedfooter) and changing your anchor (the arrow) into a label for that checkbox, I'm able to use the :checked pseudo class and the + selector to target the sibling element (in this case, the sidebar div.fixedfooter). If the checkbox is checked, the sidebar is moved out of the screen and if it's not checked, the sidebar is shown (left: 0).
For the animation I've used some css3 transition (transition: left .4s ease) :)