Displaying a block on mouseover inline - javascript

I want to display a <div> block when mouse enters an element
My code so far:
<div class="dropdown">
MEN
<div class="dropdowncontent" id="ddmen" style="margin-left:100px;">
TOPWEAR <br/>
BOTTOMWEAR </br>
FOOTWEAR
</div>
</div>
JavaScript Code:
var ddm=document.getElementById("ddmen")
function ddmenin()
{
ddm.style.display="block";
}
function ddmenout()
{
ddm.style.display="none";
}
But when i hover over <a href="#men"> I cannot click on the links in the <div> with class="dropdowncontent" as the block disappears when i leave the <a href="#men">
I don't understand why this is happening since i have used onmouseover, which is valid even for child elements.
I have tried doing it using css but for some reason the following does not work (Style.css is used in above html)
STYLE.CSS
.dropdowncontent{
display:none;
}
.dropdown:hover .dropdowncontent{display:block;}
Can someone please correct my code to satisfy my needs or has any other simple alternative?

Well, your div link container is not part of a link, so when you move cursor to dropdown menu you leave the link and onmouseout listener does its job.
What you want is to hide the menu when it's not needed anymore. E.g. you clicked on the menu item or you left the menu and didn't return for some time.
To achieve this you can do the following:
Add hiding the menu to click listener on menu items
Add a function that starts some timer as soon as you leave the dropdown button or the menu (so that makes two onmouseout listeners). If you return there, you can reset the timer in onmouseover. When timer is done you can hide the menu.
It can look like this:
const $ = document.querySelector;
let menuTimeoutId;
const menu = $('#ddmen');
function stopMenuTimeoutAndShowMenu() {
if (menuTimeoutId) {
clearTimeout(menuTimeoutId);
menuTimeoutId = null;
}
menu.style.display = 'block';
}
function startMenuTimeout() {
window.menuTimeoutId = setTimeout(() => {
menu.style.display = 'none';
}, 2000); // possible timeout value
}
$('#men, #ddmen').addEventListener('onmouseover', stopMenuTimeoutAndShowMenu);
$('#men, #ddmen').addEventListener('onmouseout', startMenuTimeout);

I think you should use the onmouseover and onmouseout in your <div class="dropdown"> instead. Because, when you go to the div.dropdowncontent you probably invokes the onmouseout event. So the code will be like this:
<div class="dropdown" onmouseover="ddmenin()" onmouseout="ddmenout()">
MEN
<div class="dropdowncontent" id="ddmen" style="margin-left:100px;">
TOPWEAR <br/>
BOTTOMWEAR </br>
FOOTWEAR
</div>
</div>
See if it works ;D

You can try simple CSS changes, that can even help you :
In your Style.css file:
.dropdown .dropdowncontent {
visibility: hidden;
}
.dropdown:hover .dropdowncontent {
visibility: visible;
}

Related

onmouseover function working, but onmouseout function is not?

right now I'm trying to make an overlay div appear when another element is hovered over, and I'm doing this with the onmouseout and onmouseover properties. In the element that is originally displayed, I have an h1 with a unique item code, and an image of the item. I also have another div that is set to display: none by default, with an id that is the code corresponding to the item. I want this div to show up on hover, and disappear when the mouse is moved away.
In the HTML code, I'm specifying functions to run on mouseover and mouseout, then in the Javascript for those functions, I'm first getting the h1 and its unique item code, then selecting the hidden div with the id as the item code to show or hide. The only difference between my show and hide functions is style.display since it is either 'block' or 'none'. The show function works perfectly, and the hidden div shows up. However, when I move my mouse out, the div isn't disappearing like its supposed to. Can someone help me figure out as to why?
function showstatus(object) {
code = object.querySelector('h1').innerHTML;
document.querySelector(`#${code}`).style.display = "block";
}
function normalize(object) {
code = object.querySelector('h1').innerHTML;
document.querySelector(`#${code}`).style.display = "none";
}
{% for listing, specs in a_dict %}
<div class="list-item" onmouseover="showstatus(this)" onmouseout="normalize(this)">
<h1 class="hidden">{{listing}}</h1>
<img src="image link that I didn't include" class="item-thumbnail">
</div>
{% endfor %}
Use onmouseleave instead of onmouseover as you are using it on a div.
function showstatus(object) {
code = object.querySelector('h1').innerHTML
document.querySelector(`#${code}`).style.display="block";
}
function normalize(object) {
code = object.querySelector('h1').innerHTML
document.querySelector(`#${code}`).style.display="none";
}
<div class="list-item" onmouseover="showstatus(this)" onmouseleave="normalize(this)">
<h1 class="hidden">{{listing}}</h1>
<img src="image link that I didn't include" class="item-thumbnail">
</div>
This is an alternate method of doing so:
document.getElementById('div').onmouseover = showstatus(document.getElementById('div'))
document.getElementById('div').onmouseout = normalize(document.getElementById('div'))
function showstatus(object) {
code = object.querySelector('h1').innerHTML
document.querySelector(`#${code}`).style.display="block";
}
function normalize(object) {
code = object.querySelector('h1').innerHTML
document.querySelector(`#${code}`).style.display="none";
}
<div id="div" class="list-item">
<h1 class="hidden">{{listing}}</h1>
<img src="image link that I didn't include" class="item-thumbnail">
</div>

Use jQuery to click anywhere and remove 'active' class

I'm having some trouble figuring out how to close a div by clicking anywhere on the screen.
I'm currently toggling an 'active' class in order to display a drop down div, then attempting to remove that class by clicking on the body:
$(document).ready(function () {
$('.navbar a').click(function () {
$(this).next('.navbar-dropdown').toggleClass('active');
});
$(body).click(function() {
if($('.navbar-dropdown').hasClass('active')){
$('.navbar-dropdown').removeClass('active');
}
});
});
<ul class="navbar">
<li>
Link
<div class="navbar-dropdown">
Dropdown Content
</div>
</li>
</ul>
However they are conflicting with each other, so as soon as the class is toggled on, the 'body' click toggles it off at the same time. Have spent some time looking on here and came across this method a few times:
$(document.body).click( function() {
closeMenu();
});
$(".dialog").click( function(e) {
e.stopPropagation();
});
However any attempts to configure this to work correctly seemed to fall on deaf ears!
The click event from the navbar is bubbling up to the body, so both events fire. stopPropagation() is one way to prevent that, but you need to do it in the navbar link's event handler, so it stops that particular event; not in a separate event handler as you had it.
Another change you might consider making is to only assign the body click handler when you need it, instead of firing all the time -- create that handler inside the navbar's click handler, and deactivate it again when it's used:
$(document).ready(function() {
$('.navbar a').click(function(e) {
var myDropdown = $(this).next('.navbar-dropdown');
$('.navbar-dropdown.active').not(myDropdown).removeClass('active'); // close any other open dropdowns
myDropdown.toggleClass('active'); // open this one
$('body').click(function() {
// no need for an if statement here, just use a selector that matches the active elements:
$('.navbar-dropdown.active').removeClass('active');
$('body').off('click'); // cancel the body's click handler when it's used
});
e.stopPropagation(); // prevent the navbar event from bubbling up to the body
});
});
.active {
color: red
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<ul class="navbar">
<li>
Link
<div class="navbar-dropdown">
Dropdown Content
</div>
</li>
<li>
Link 2
<div class="navbar-dropdown">
Dropdown Content 2
</div>
</li>
<li>
Link 3
<div class="navbar-dropdown">
Dropdown Content 3
</div>
</li>
</ul>
(If there's a chance you might need more than one separate click event handler on the body, you can namespace the event so you can control which one you're turning off:
$('body').on("click.myNamespace", function() {
// do other stuff
$('body').off("click.myNamespace")
})
I did the exact thing as you and it works for me. Are you sure you don't have any other event listeners attached? Or maybe a z-index on the menu bringing it underneath other elements?
$(document).click(function(e) {
$(".dialog").text('closed')
});
$(".dialog").click(function(e) {
e.target.innerText = 'open';
e.stopPropagation();
});
.dialog {
width: 200px;
height: 200px;
background: antiquewhite;
text-align: center;
}
<html>
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
</head>
<body>
<div class="dialog">open</div>
</body>
</html>

Pop-up Div to appear on hover of button

I am creating a website where i want to display a div on hover of a button. Currently i am able to do this but it's not the desired effect. I have created a DEMO in jsfiddle to show what i have achieved and i will paste my HTML, jQuery and only the CSS which is pertaining to this question.
HTML
<div class="cart-btn" >CART
</div>
<div class="minicart" >
Items : 5
Total : $250
VIEW CART
</div>
jQuery
$(document).ready(function () {
$(".cart-btn").hover(
function () {
$(".minicart").show(100);
}, function () {
$(".minicart").hide(2000);
});
});
CSS
.minicart {
width:164px;
display: none;
background-color:#0A3151;
opacity:0.8;
position:absolute;
z-index:9999;
margin-left:450px;
margin-top:30px;
}
ISSUE: The desired effect i want is, "The div should slide from under the button" and dissapear in the same manner".
However my main concern is that the div should remain focused even when i hover over it. Currently it disappears as soon as i take my mouse away from the button. The div once displayed should remain displayed unless the user takes the mouse away either from the div or button.
A few things to note, when using absolute positioning use top instead of margin-top and so on.
Second to avoid the popup folding up when you leave the button use the following selector:
$(".cart-btn, .minicart").hover(
function () {
$(".minicart").slideDown(100);
}, function () {
$(".minicart").slideUp(2000);
});
Use slideDown and slideUp as BeNdErR sugested, here's an updated version of his fiddle
Wrap both button and div in another div. The use this div for hover-event.
<div id="cbutt">
<div class="cart-btn" >CART
</div>
<div class="minicart">Items : 5 Total : $250 VIEW CART
</div>
</div>
$(document).ready(function () {
$("#cbutt").hover(
function () {
$(".minicart").show(100);
}, function () {
$(".minicart").hide(2000);
});
})
Here is a fiddle:
http://jsfiddle.net/Ncj2E/
Hope this is what you wanted.

Jquery show/hide divs - fix overlapping animations

I am using JS to show/hide divs via clicking on the side nav with jquery functions fadeIn() and fadeOut(). The problem I run into is as one div fades out, the next is fading in simultaneously. Also, if I click the link for the div that is already shown, it fades out and fades in again. I'm not sure if an IF statement would be the best approach to do two fixes:
1. Let shown div fully fadeOut before next starts to fadeIn.
2. Currently shown div will not fadeOut/In if same link is clicked.
Here is what I have thus far (without my broken attempt at an IF statement):
http://jsfiddle.net/k55Cw/1/
HTML:
<div class="container">
<header>
<ul class="sidenav">
<li><h2><a data-region="nav-1" href="#">About</a></h2></li>
<li><h2><a data-region="nav-2" href="#">Services</a></h2></li>
<li><h2><a data-region="nav-3" href="#">Team</a></h2></li>
<li><h2><a data-region="nav-4" href="#">News</a></h2></li>
<li><h2><a data-region="nav-5" href="#">Contact</a></h2></li>
</ul>
</header>
<div id="nav-1" class="infozone"><p>Hello I'm box 1.</p></div>
<div id="nav-2" class="infozone"><p>Hello I'm box 2.</p></div>
<div id="nav-3" class="infozone"><p>Hello I'm box 3.</p></div>
<div id="nav-4" class="infozone"><p>Hello I'm box 4.</p></div>
<div id="nav-5" class="infozone"><p>Hello I'm box 5.</p></div>
</div>
CSS:
.infozone{
float:left;
height:400px;
width:800px;
background-color: #000;
display:none;
}
JS:
$(document).ready(function() {
$('.sidenav a').click(function(){
$('.infozone').fadeOut(850);
var region = $(this).attr('data-region');
$('#' + region).fadeIn(850);
});
});
to chain the animations put the fadeIn inside the callback for fadeOut, and to cancel the function if it's currently shown, check if the div is already visible.
I've also had to add a check to see if the current .infozone div is visible - or else the fadeOut applies to hidden elements too, and the callback fires multiple times:
$(document).ready(function() {
$('.sidenav a').click(function(){
var region = $(this).attr('data-region');
var $region = $('#' + region);
if ($region.is(':visible')) return;
var $infozone = $('.infozone:visible');
if ($infozone.length === 0) {
$region.fadeIn(850);
} else {
$infozone.fadeOut(850, function() {
$region.fadeIn(850);
});
}
});
});
You could something like that:
html
This make you page works when javascript is disabled:
<header>
<ul class="sidenav">
<li><h2>About</h2></li>
<li><h2>Services</h2></li>
<li><h2>Team</h2></li>
<li><h2>News</h2></li>
<li><h2>Contact</h2></li>
</ul>
</header>
note that the href point to the id you want to show. This will works also for screen reader if you want to make your page accessible.
javascript. I have not tested it, you might have to fix few things, but the idea is there
$(document).ready(function() {
$('.sidenav a').click(function(e){
var href = $(this).attr('href');
// prevent default
e.preventDefault();
// prevent clicked twice
if(!$(this).hasClass('active'){
$('.sidenav a').removeClass('active');
$(this).addClass('active'){
$('.infozone').fadeOut(850);
$(href.substring(1)).fadeIn(850);
}
});
You should also consider adding some ARIA attributes and roles attributes.

Hiding a dropdown menu without it flashing with prototype

I have a number of dropdowns and divs that are hidden when the page loads and can be toggled with a click or mouseover, but some of them flash b/c the JavaScript does not run in time. I have their display initially set to block and then I use JavaScript/prototype to find the element and hide it. I have tried loading these "hider" functions using dom:loaded but there is still flashing. This is an example of a dropdown prototype initialization function. From
http://www.makesites.cc/programming/by-makis/simple-drop-down-menu-with-prototype/:
var DropDownMenu = Class.create();
DropDownMenu.prototype = {
initialize: function(menuElement) {
menuElement.childElements().each(function(node){
// if there is a submenu
var submenu = $A(node.getElementsByTagName("ul")).first();
if(submenu != null){
// make sub-menu invisible
Element.extend(submenu).setStyle({display: 'none'});
// toggle the visibility of the submenu
node.onmouseover = node.onmouseout = function(){
Element.toggle(submenu);
}
}
});
}
};
Is there a better way to hide div's or dropdowns to avoid this flashing?
You always run the risk of flicker when you try to hide elements after page load.
I suggest you give the elements in question an inline style like display:none; or a css class with the same setting.
From the class creation syntax used, I take it that you are using something like Prototype version 1.5.x. Here's my take on how I'd do it with that version (it would be nicer to step up to the latest version, of course):
<script type="text/javascript">
var DropDownMenu = Class.create();
DropDownMenu.prototype = {
initialize: function(menuElement) {
// Instead of using 2 listeners for every menu, listen for
// mouse-ing on the menu-container itself.
// Then, find the actual menu to toggle when handling the event.
$(menuElement).observe('mouseout', DropDownMenu.menuToggle);
$(menuElement).observe('mouseover', DropDownMenu.menuToggle);
}
};
DropDownMenu.menuToggle = function (event) {
var menu = DropDownMenu._findMenuElement(event);
if (menu) {Element.toggle(menu);}
};
DropDownMenu._findMenuElement = function (event) {
var element = Event.element(event);
return Element.down(element, 'ul');
}
var toggler = new DropDownMenu('menus');
</script>
And here is some markup to test it with (it may not match yours perfectly, but I think it is similar enough):
<html>
<head>
<title>menu stuff</title>
<style type="text/css ">
/* minimal css */
#menus ul, .menu-type {float: left;width: 10em;}
</style>
</head>
<body>
<h1>Menus</h1>
<div id="menus">
<div class="menu-type">
Numeric
<ul style="display: none;">
<li>1</li><li>2</li><li>3</li><li>4</li>
</ul>
</div>
<div class="menu-type">
Alpha
<ul style="display: none;">
<li>a</li><li>b</li><li>c</li><li>d</li>
</ul>
</div>
<div class="menu-type">
Roman
<ul style="display: none;">
<li>I</li><li>II</li><li>III</li><li>IV</li>
</ul>
</div>
</div>
</body>
</html>
Yoda voice: "Include the prototype.js, I forgot."
Should you want to get rid of inline styling (like I do), give the uls a class like
.hidden {display:none;}
instead, and make the DropDownMenu.menuToggle function do this
if (menu) {Element.toggleClassName(menu, 'hidden');}
instead of toggling the display property directly.
Hope this helps.
Set the display initially to none, then show them as needed. That will get rid of the flashing.

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