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Hovering Option in Select-field not working [duplicate]

I am trying to show a description when hovering over an option in a select list, however, I am having trouble getting the code to recognize when hovering.
Relevant code:
Select chunk of form:
<select name="optionList" id="optionList" onclick="rankFeatures(false)" size="5"></select>
<select name="ranks" id="ranks" size="5"></select>
Manipulating selects (arrays defined earlier):
function rankFeatures(create) {
var $optionList = $("#optionList");
var $ranks = $("#ranks");
if(create == true) {
for(i=0; i<5; i++){
$optionList.append(features[i]);
};
}
else {
var index = $optionList.val();
$('#optionList option:selected').remove();
$ranks.append(features[index]);
};
}
This all works. It all falls apart when I try to deal with hovering over options:
$(document).ready(
function (event) {
$('select').hover(function(e) {
var $target = $(e.target);
if($target.is('option')) {
alert('yeah!');
};
})
})
I found that code while searching through Stack Exchange, yet I am having no luck getting it to work. The alert occurs when I click on an option. If I don't move the mouse and close the alert by hitting enter, it goes away. If I close out with the mouse a second alert window pops up. Just moving the mouse around the select occasionally results in an alert box popping up.
I have tried targeting the options directly, but have had little success with that. How do I get the alert to pop up if I hover over an option?

You can use the mouseenter event.
And you do not have to use all this code to check if the element is an option.
Just use the .on() syntax to delegate to the select element.
$(document).ready(function(event) {
$('select').on('mouseenter','option',function(e) {
alert('yeah');
// this refers to the option so you can do this.value if you need..
});
});
Demo at http://jsfiddle.net/AjfE8/

try with mouseover. Its working for me. Hover also working only when the focus comes out from the optionlist(like mouseout).
function (event) {
$('select').mouseover(function(e) {
var $target = $(e.target);
if($target.is('option')) {
alert('yeah!');
};
})
})

You don't need to rap in in a function, I could never get it to work this way. When taking it out works perfect. Also used mouseover because hover is ran when leaving the target.
$('option').mouseover(function(e) {
var $target = $(e.target);
if($target.is('option')) {
console.log('yeah!');
};
})​
Fiddle to see it working. Changed it to console so you don't get spammed with alerts. http://jsfiddle.net/HMDqb/

That you want is to detect hover event on option element, not on select:
$(document).ready(
function (event) {
$('#optionList option').hover(function(e) {
console.log(e.target);
});
})​

I have the same issue, but none of the solutions are working.
$("select").on('mouseenter','option',function(e) {
$("#show-me").show();
});
$("select").on('mouseleave','option',function(e) {
$("#show-me").hide();
});
$("option").mouseover(function(e) {
var $target = $(e.target);
if($target.is('option')) {
alert('yeah!');
};
});
Here my jsfiddle https://jsfiddle.net/ajg99wsm/

I would recommend to go for a customized variant if you like to ease
capture hover events
change hover color
same behavior for "drop down" and "all items" view
plus you can have
resizeable list
individual switching between single selection and multiple selection mode
more individual css-ing
multiple lines for option items
Just have a look to the sample attached.
$(document).ready(function() {
$('.custopt').addClass('liunsel');
$(".custopt, .custcont").on("mouseover", function(e) {
if ($(this).attr("id") == "crnk") {
$("#ranks").css("display", "block")
} else {
$(this).addClass("lihover");
}
})
$(".custopt, .custcont").on("mouseout", function(e) {
if ($(this).attr("id") == "crnk") {
$("#ranks").css("display", "none")
} else {
$(this).removeClass("lihover");
}
})
$(".custopt").on("click", function(e) {
$(".custopt").removeClass("lihover");
if ($("#btsm").val() == "ssm") {
//single select mode
$(".custopt").removeClass("lisel");
$(".custopt").addClass("liunsel");
$(this).removeClass("liunsel");
$(this).addClass("lisel");
} else if ($("#btsm").val() == "msm") {
//multiple select mode
if ($(this).is(".lisel")) {
$(this).addClass("liunsel");
$(this).removeClass("lisel");
} else {
$(this).addClass("lisel");
$(this).removeClass("liunsel");
}
}
updCustHead();
});
$(".custbtn").on("click", function() {
if ($(this).val() == "ssm") {
$(this).val("msm");
$(this).text("switch to single-select mode")
} else {
$(this).val("ssm");
$(this).text("switch to multi-select mode")
$(".custopt").removeClass("lisel");
$(".custopt").addClass("liunsel");
}
updCustHead();
});
function updCustHead() {
if ($("#btsm").val() == "ssm") {
if ($(".lisel").length <= 0) {
$("#hrnk").text("current selected option");
} else {
$("#hrnk").text($(".lisel").text());
}
} else {
var numopt = +$(".lisel").length,
allopt = $(".custopt").length;
$("#hrnk").text(numopt + " of " + allopt + " selected option" + (allopt > 1 || numopt === 0 ? 's' : ''));
}
}
});
body {
text-align: center;
}
.lisel {
background-color: yellow;
}
.liunsel {
background-color: lightgray;
}
.lihover {
background-color: coral;
}
.custopt {
margin: .2em 0 .2em 0;
padding: .1em .3em .1em .3em;
text-align: left;
font-size: .7em;
border-radius: .4em;
}
.custlist,
.custhead {
width: 100%;
text-align: left;
padding: .1em;
border: LightSeaGreen solid .2em;
border-radius: .4em;
height: 4em;
overflow-y: auto;
resize: vertical;
user-select: none;
}
.custlist {
display: none;
cursor: pointer;
}
.custhead {
resize: none;
height: 2.2em;
font-size: .7em;
padding: .1em .4em .1em .4em;
margin-bottom: -.2em;
width: 95%;
}
.custcont {
width: 7em;
padding: .5em 1em .6em .5em;
/* border: blue solid .2em; */
margin: 1em auto 1em auto;
}
.custbtn {
font-size: .7em;
width: 105%;
}
h3 {
margin: 1em 0 .5em .3em;
font-weight: bold;
font-size: 1em;
}
ul {
margin: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<h3>
customized selectable, hoverable resizeable dropdown with multi-line, single-selection and multiple-selection support
</h3>
<div id="crnk" class="custcont">
<div>
<button id="btsm" class="custbtn" value="ssm">switch to multi-select mode</button>
</div>
<div id="hrnk" class="custhead">
current selected option
</div>
<ul id="ranks" class="custlist">
<li class="custopt">option one</li>
<li class="custopt">option two</li>
<li class="custopt">another third long option</li>
<li class="custopt">another fourth long option</li>
</ul>
</div>

how to target pseudo element with java script

so i have a menu and i add a font awesome icon on each parent menu.
and if they click the icon it will show slide down animation to show their child menu.
currently my code is like this
on css
li {
a {
border-bottom: solid thin $color-green;
#include font-size(1.2);
padding: 5px 0px;
}
.sub-menu {
display: none;
list-style: none;
padding: 0;
a {
padding: 5px 20px;
display: block;
}
}
&.menu-item-has-children {
a {
&::after {
content: '\f055';
font-family: FontAwesome;
font-weight: normal;
font-style: normal;
float: right;
}
&::before{
content: '\f056;';
font-family: FontAwesome;
font-weight: normal;
font-style: normal;
float: right;
}
}
}
}
on my php file( im using wp)
<div id="navbar-main-menu" class="collapse navbar-collapse">
<?php
if (has_nav_menu('primary_navigation')) :
wp_nav_menu(['theme_location' => 'primary_navigation', 'menu_class' => 'nav top-menu ']);
endif;
?>
</div>
<!--/.nav-collapse -->
i want to jquery active only on max resolution 767, so my script is like this.
but i dont know how to target the after and make specifict code so when i click 1 parent link it didnt trigger the other parent link to show their child menu.
var resizeTimer;
$(window).resize(function(e) {
clearTimeout(resizeTimer);
resizeTimer = setTimeout(function() {
if ($(window).width() <= 767) {
$('.menu-item-has-children a::after').click(function() {
$('a').slideToggle();
});
} else {
}
});
});
this is my progress now
please help

Use this keyword instead of targeting a element.
var resizeTimer;
$(window).resize(function(e) {
clearTimeout(resizeTimer);
resizeTimer = setTimeout(function() {
if ($(window).width() <= 767) {
$('.menu-item-has-children a').click(function() {
$(this).slideToggle();
});
} else {
}
});
});
On a separate note why are you using a timer to check the width. I am not sure if this is hindering with your code or not. If the above code doesn't work, please create a JSfiddle and share the link so that I can have a better look.
Update
Pseudo element doesn't work with jquery selector. Updated the code for the same. But this may not be complete solution OP is looking for.

Is it possible to list multiple ID's in a function, that will not trigger a .hide function?

Got a problem with my slide in menu. Check the my JSfiddle here.
At the moment the slide-in menu closes, whenever clicked on everything else than the menu itself. The problem is, that the menu closes, when i click the text. I would like to perhaps list more ID's inside the same function, something like this;
if(isOpened && e.target.id!='slide-in,text')
My script:
var isOpened = false;
$(document).click(function(e) {
if(isOpened && e.target.id!='slide-in') {
$("#slide-in").removeClass("active");
isOpened = false;
$("#button").show();
} else if(!isOpened && e.target.id=='button'){
$("#slide-in").addClass("active");
isOpened = true;
$("#button").hide;
}
});
Thank you!

You can use an array and indexOf
['slide-in', 'text'].indexOf(e.target.id) === -1
Might I suggest that you add a class to the elements you don't want it to apply to?
!$(this).is('.someClass')

instead of checking for all the ids, check for existence of parent with id as slide-in
if(isOpened && e.target.id!='slide-in') {
if(!$(e.target).parents('#slide-in').length) {
$("#slide-in").removeClass("active");
isOpened = false;
$("#button").show();
}
}
check this fiddle

#slide-in {
position: fixed;
z-index: 10;
top: 0;
width: 300px;
height: 100%;
background-color: #eee;
border-right: 10px solid #ccc;
display:none;
}
and add this inside the .js
$(document).ready(function(){
$("#button").click(function(){
$("#slide-in").show(300);
})
$("#slide-in").click(function(){
$(this).hide(300);
});
});
and if you want more real use this.
in your css change this class like this
#slide-in {
position: fixed;
z-index: 10;
top: 0;
width: 0px;
height: 100%;
background-color: #eee;
border-right: 10px solid #ccc;
display:none;
}
for your js
$(document).ready(function(){
$("#button").click(function(){
$("#slide-in").animate({width: "300px"});
});
$("#slide-in").click(function(){
$(this).animate({width: "0px"});
});
});

Attaching an image to an overlay using javascript

I have searched several posts but cannot find something similar to what I need to do, or what I have found I cannot get to work - pretty sure that is just me though!
So, there are 3 links on a page. When a link is clicked it should display the photo (on the same page) with an overlay applied to it. I can get the image to open but for the life of me cannot figure out how to get the overlays to attach. When the image opens it should stay on the same page (with the links visible through the overlay). The user should be able to click a close button or the image itself to go back to the links display.
I know the code is a mess as I've been trying anything I can think of to try and get this to work, since I'm currently stuck on getting everything to display properly and have not even gotten to the close function yet if someone can give me a hint I would really appreciate it.
Thanks!
HTML
<!doctype html>
<html>
<head>
<title> Image preview </title>
<meta charset="utf-8">
<link rel="stylesheet" href="preview.css">
<script src="preview.js"></script>
<script>
window.onload = function() {
Preview.init();
};
</script>
</head>
<body>
<ul>
<li><a href="https://courses.oreillyschool.com/advancedjavascript
/homework/images/image1.jpg" data-preview="image1">Mt. Rainier,
1</a></li>
<li><a href="https://courses.oreillyschool.com/advancedjavascript
/homework/images/image2.jpg" data-preview="image2">Mt. Rainier,
2</a></li>
<li><a href="https://courses.oreillyschool.com/advancedjavascript
/homework/images/image3.jpg" data-preview="image3">Mt. Rainier,
3</a></li>
</ul>
</body>
</html>
CSS
.previewOverlay {
position: absolute;
display: none;
top: 0px;
left: 0px;
background-color: rgba(0, 0, 0, 0.7);
width: 100%;
height: 100%;
}
.previewOverlay img {
position: relative;
border: 20px solid white;
border-radius: 10px;
top: 50px;
left: 50px;
}
.close {
position: absolute;
top: 0px;
left: 0px;
color: #fdfdfd;
font-size: 50px;
text-shadow: 0px 0px 5px black;
}
.close:after {
content: "\2717";
}
.close:hover {
color: orange;
}
JavaScript
function Preview () {
var mtnPics = document.querySelectorAll("a");
console.log(mtnPics);
mtnPics.addEventListener("click", function(event) {
event.preventDefault()
});
for (var i = 0; i < mtnPics.length; i++) {
mtnPics[i].onclick = showPicture;
}
function showPicture (pictureURL) {
var picPicked = document.getElementById("a").value;
console.log(picPicked);
//Create Div's for image display.
var ul = document.getElementById("ul");
var picDiv = document.createElement("div");
picDiv.setAttribute("class", "previewOverlay");
var imgDiv = document.createElement("div");
imgDiv.setAttribute("class", "previewOverlay img");
var imgSelected = document.getElementById("a").value;
console.log(imgSelected);
imgDiv.src = imgSelected;
var buttonClose = document.createElement("button");
//Assign divs and buttons
buttonClose = document.setAttribute("class", "close");
ul.appendChild(imgDiv);
imgDiv.appendChild(pictureURL);
imgDiv.appendChild(buttonClose);
picDiv.appendChild(imgDiv);
picDiv.insertBefore(ul, picDiv.firstChild);
//document.body.appendChild(picDiv);
buttonClose.onclick = closePicture;
}
function closePicture(targetURL) {
document.removeElement('picDiv');
}
}

Hovering over an <option> in a select list

I am trying to show a description when hovering over an option in a select list, however, I am having trouble getting the code to recognize when hovering.
Relevant code:
Select chunk of form:
<select name="optionList" id="optionList" onclick="rankFeatures(false)" size="5"></select>
<select name="ranks" id="ranks" size="5"></select>
Manipulating selects (arrays defined earlier):
function rankFeatures(create) {
var $optionList = $("#optionList");
var $ranks = $("#ranks");
if(create == true) {
for(i=0; i<5; i++){
$optionList.append(features[i]);
};
}
else {
var index = $optionList.val();
$('#optionList option:selected').remove();
$ranks.append(features[index]);
};
}
This all works. It all falls apart when I try to deal with hovering over options:
$(document).ready(
function (event) {
$('select').hover(function(e) {
var $target = $(e.target);
if($target.is('option')) {
alert('yeah!');
};
})
})
I found that code while searching through Stack Exchange, yet I am having no luck getting it to work. The alert occurs when I click on an option. If I don't move the mouse and close the alert by hitting enter, it goes away. If I close out with the mouse a second alert window pops up. Just moving the mouse around the select occasionally results in an alert box popping up.
I have tried targeting the options directly, but have had little success with that. How do I get the alert to pop up if I hover over an option?

You can use the mouseenter event.
And you do not have to use all this code to check if the element is an option.
Just use the .on() syntax to delegate to the select element.
$(document).ready(function(event) {
$('select').on('mouseenter','option',function(e) {
alert('yeah');
// this refers to the option so you can do this.value if you need..
});
});
Demo at http://jsfiddle.net/AjfE8/

try with mouseover. Its working for me. Hover also working only when the focus comes out from the optionlist(like mouseout).
function (event) {
$('select').mouseover(function(e) {
var $target = $(e.target);
if($target.is('option')) {
alert('yeah!');
};
})
})

You don't need to rap in in a function, I could never get it to work this way. When taking it out works perfect. Also used mouseover because hover is ran when leaving the target.
$('option').mouseover(function(e) {
var $target = $(e.target);
if($target.is('option')) {
console.log('yeah!');
};
})​
Fiddle to see it working. Changed it to console so you don't get spammed with alerts. http://jsfiddle.net/HMDqb/

That you want is to detect hover event on option element, not on select:
$(document).ready(
function (event) {
$('#optionList option').hover(function(e) {
console.log(e.target);
});
})​

I have the same issue, but none of the solutions are working.
$("select").on('mouseenter','option',function(e) {
$("#show-me").show();
});
$("select").on('mouseleave','option',function(e) {
$("#show-me").hide();
});
$("option").mouseover(function(e) {
var $target = $(e.target);
if($target.is('option')) {
alert('yeah!');
};
});
Here my jsfiddle https://jsfiddle.net/ajg99wsm/

I would recommend to go for a customized variant if you like to ease
capture hover events
change hover color
same behavior for "drop down" and "all items" view
plus you can have
resizeable list
individual switching between single selection and multiple selection mode
more individual css-ing
multiple lines for option items
Just have a look to the sample attached.
$(document).ready(function() {
$('.custopt').addClass('liunsel');
$(".custopt, .custcont").on("mouseover", function(e) {
if ($(this).attr("id") == "crnk") {
$("#ranks").css("display", "block")
} else {
$(this).addClass("lihover");
}
})
$(".custopt, .custcont").on("mouseout", function(e) {
if ($(this).attr("id") == "crnk") {
$("#ranks").css("display", "none")
} else {
$(this).removeClass("lihover");
}
})
$(".custopt").on("click", function(e) {
$(".custopt").removeClass("lihover");
if ($("#btsm").val() == "ssm") {
//single select mode
$(".custopt").removeClass("lisel");
$(".custopt").addClass("liunsel");
$(this).removeClass("liunsel");
$(this).addClass("lisel");
} else if ($("#btsm").val() == "msm") {
//multiple select mode
if ($(this).is(".lisel")) {
$(this).addClass("liunsel");
$(this).removeClass("lisel");
} else {
$(this).addClass("lisel");
$(this).removeClass("liunsel");
}
}
updCustHead();
});
$(".custbtn").on("click", function() {
if ($(this).val() == "ssm") {
$(this).val("msm");
$(this).text("switch to single-select mode")
} else {
$(this).val("ssm");
$(this).text("switch to multi-select mode")
$(".custopt").removeClass("lisel");
$(".custopt").addClass("liunsel");
}
updCustHead();
});
function updCustHead() {
if ($("#btsm").val() == "ssm") {
if ($(".lisel").length <= 0) {
$("#hrnk").text("current selected option");
} else {
$("#hrnk").text($(".lisel").text());
}
} else {
var numopt = +$(".lisel").length,
allopt = $(".custopt").length;
$("#hrnk").text(numopt + " of " + allopt + " selected option" + (allopt > 1 || numopt === 0 ? 's' : ''));
}
}
});
body {
text-align: center;
}
.lisel {
background-color: yellow;
}
.liunsel {
background-color: lightgray;
}
.lihover {
background-color: coral;
}
.custopt {
margin: .2em 0 .2em 0;
padding: .1em .3em .1em .3em;
text-align: left;
font-size: .7em;
border-radius: .4em;
}
.custlist,
.custhead {
width: 100%;
text-align: left;
padding: .1em;
border: LightSeaGreen solid .2em;
border-radius: .4em;
height: 4em;
overflow-y: auto;
resize: vertical;
user-select: none;
}
.custlist {
display: none;
cursor: pointer;
}
.custhead {
resize: none;
height: 2.2em;
font-size: .7em;
padding: .1em .4em .1em .4em;
margin-bottom: -.2em;
width: 95%;
}
.custcont {
width: 7em;
padding: .5em 1em .6em .5em;
/* border: blue solid .2em; */
margin: 1em auto 1em auto;
}
.custbtn {
font-size: .7em;
width: 105%;
}
h3 {
margin: 1em 0 .5em .3em;
font-weight: bold;
font-size: 1em;
}
ul {
margin: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<h3>
customized selectable, hoverable resizeable dropdown with multi-line, single-selection and multiple-selection support
</h3>
<div id="crnk" class="custcont">
<div>
<button id="btsm" class="custbtn" value="ssm">switch to multi-select mode</button>
</div>
<div id="hrnk" class="custhead">
current selected option
</div>
<ul id="ranks" class="custlist">
<li class="custopt">option one</li>
<li class="custopt">option two</li>
<li class="custopt">another third long option</li>
<li class="custopt">another fourth long option</li>
</ul>
</div>