Simple jquery slide element - javascript

I'm totally new in js and jq. I'am trying force my #cont div to change height on hover with animation and back to previous height without hover, but I dont know how to achieve that. In my test it should make an alert (or make other function), right?
http://jsfiddle.net/JJh9z/1773/
<div id='cont'>
<ul>
<li>an item</li>
<li>an item</li>
<li>an item</li>
<li>an item</li>
<li>an item</li>
</ul>
<div id='ruch'>HOVER</div>
</div>
#cont {
border: 1px solid #000;
height: 200px;
overflow:hidden;
position:relative;
}
#ruch {
position:absolute;
bottom:0px;
}
var result = $("#cont").height();
$('#ruch').hover(function(){
$('#cont').animate({height:'300px'}, 500);
});
if (result == 300) {
alert(result)
}

Your if statement only runs once when the script is first loaded, so no it won't alert each time someone hovers. it is not an event listener.
You need to add another event listener for when the mouse leaves the element (mouseout). See this modified code:
$('#ruch').hover(function(){
$('#cont').animate({height:'300px'}, 500);
});
$('#ruch').mouseout(function(){
$('#cont').animate({height:'200px'}, 500);
});
http://jsfiddle.net/JJh9z/1775/

http://api.jquery.com/hover/
You can specify a handleout event handler, in which you'd restore the element to its previous height.
You also should select not the 'HOVER' div (it's small) but a bigger element (like cont):
$('#cont').hover(
function () {
$('#cont').animate({
height: '300px'
}, 500);
},
function () {
$('#cont').animate({
height: '200px'
}, 500);
});
Here, I've specified a hover-out handler, and focused on 'cont' instead of 'ruch'
http://jsfiddle.net/JJh9z/1773/

There are several ways of doing this. One is to call the 'after animation completes function'. which takes another function as option.. the below example alerts 'Hii' after animating the height to 300px.
$( "#ruch").hover(function() {
$( "#cont" ).animate({
height: "300px"
}, {
duration: 500,
complete: function() {
alert('Hii');
}
});
});

To prevent multiple animations for one hover event since #ruch moves from under the mouse pointer during hover animation, use the following and a current version of jQuery:
var result = $("#cont").height();
$('#ruch').on( 'mouseenter', function(){
$('#cont').animate({height:'300px'}, 500, function() {
alert( result );
});
});
$('#cont').on( 'mouseleave', function(){
if( $(this).height() != result ) {
$(this).animate({height:result}, 500);
}
});
Once the #cont expands the mouse is no longer over #ruch and any slight movement would fire mouseleave and the #cont collapses. To prevent that, attach the mouseleave event to #cont as above.

You could play around with some webkit transitions as well, which is pretty easy.
The problem with adding an event listener for when the mouse leaves the even and queuing up an animation is that you can end up with a queue of many animations if you move your mouse crazily over the div, while this method will only do one animation.
#cont {
border: 1px solid #000;
height: 200px;
overflow:hidden;
position:relative;
-webkit-transition: 0.5s;
}
#ruch {
position:absolute;
bottom:0px;
}
$(document).on('mouseover', '#cont', function() {
document.getElementById('cont').style.height = 300;
});
$(document).on('mouseleave', '#cont', function() {
document.getElementById('cont').style.height = 200;
});

Related

How to select element thats between ranges?

I have side bullets that are menu scrolling to section of onepage, i did a scroll animation but i would like to change class="active" between bullets when scrolling. I know it can be easly achieved by jQuery(body,window).scroll() with $('#scrollspymenu li').each() but its really bad way. I can break out of each() function but this way i still need to get from first li element to (for example) 5th li. I thought about getting all data-target elements to some array with save offsetTop and offsetTop+height and in scroll event i will check which element is on middle of the screen. ( i mean window scroll top position + 1/2 window height)
I have no idea how to make like some kind of timeline with sections with calculated range AND what function can select (based on input) element that is attached to 2 range values.
I'm also using scrollMagic, maybe it does it better? Still would like to use pure js or jquery for future use.
I'm sorry i couldnt form a good specific question but i tried my best.
my comment
(..) I want fastest possible way to get from scrolll event to proper element. Best possible performance of the page. It's stupid when u scroll, 1 scroll tick is 100x on scroll function, and every function goes every element. For 4 elements its checks elements 400 times...
JS
var page = $("html, body");
$('#scrollspymenu a, .go-to, .go-to2').click(function(event) {
event.preventDefault();
var target = $(this).attr('data-target');
if(target){
page.on("scroll mousedown wheel DOMMouseScroll mousewheel keyup touchmove", function(){
page.stop();
});
page.animate({ scrollTop: $(target).offset().top-50 }, 700, function(){
page.off("scroll mousedown wheel DOMMouseScroll mousewheel keyup touchmove");
});
}
})
Html Side menu
<nav id="scrollspymenu">
<ul>
<li class="active"><span>Knauf Group</span></li>
<li><span>History</span></li>
<li><span>Values</span></li>
()...)
<li><span>Automobile industry</span></li>
<li><span>Solutions</span></li>
</ul>
First off, I am not 100% sure this resolves your issue, as the intent is not totally clear to me.
What THIS does is if you click on a menu, it scrolls to that associated target.
Also if you tab, shift-tab it scrolls to that associated target.
If you mouse over a menu, then scroll, it scrolls the target. I think you get the idea and if not a 100% solution perhaps you can build from this.
The console.logstuff should be removed eventually but will illustrate what is firing at what point for you.
var page = $("html,body");
$('#scrollspymenu').on('click scroll mousedown wheel DOMMouseScroll mousewheel keyup touchmove', 'a', function(event) {
// event.preventDefault();
event.stopImmediatePropagation();
var elem = $(this);
var target = elem.data('target');
$('.active').removeClass('active');
if (!!target) {
$(target).addClass('active');
elem.addClass('active');
console.log('in here');
page.off("scroll mousedown wheel DOMMouseScroll mousewheel keyup touchmove", function() {
console.log('in stop');
page.stop(); // stop any animation
});
page.animate({
scrollTop: ($(target).offset().top - 50)
}, {duration:700, start:function() {
console.log('in callback', $(target).offset().top - 50);
page.on("scroll mousedown wheel DOMMouseScroll mousewheel keyup touchmove");
}});
}
})
#pagethings {
margin-left: 200px;
}
#contentbody {
float: right;
width: 100%;
background-color: #F0F0F0;
}
#scrollspymenu {
float: left;
width: 200px;
margin-left: -200px;
background-color: #CCCCCC;
/* fix to top */
position: fixed;
/* force scroll bars */
overflow: scroll;
}
.section {
margin: 1em;
padding-bottom: 4em;
}
#clearingdiv {
clear: both;
}
.active{ background-color: #EECCAA;}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="pagethings">
<nav id="scrollspymenu">
<ul>
<li class="active"><span>Knauf Group</span></li>
<li><span>History</span></li>
<li><span>Values</span></li>
<li><span>Automobile industry</span></li>
<li><span>Solutions</span></li>
</ul>
</nav>
<div id="contentbody">
<div class="section sec-company-home sec-home-knaufgroup">My Home of my grand thing</div>
<div class="section sec-company-history">History of my grand thing</div>
<div class="section sec-company-values">Values of my grand thing</div>
<div class="section sec-company-automobile">My great car of my grand thing. I might put something bigger in here, pictures etc so I fake this with some text to make it bigger. The brown cow jumped over the crazy blue moon but why is that moon blue and how can that cow breathe when jumping over
a moon and why is it "over" the moon not "around" the moon for a literal quotation?</div>
<div class="section sec-company-solutions">Solution of my grand thing, drive my great car fast</div>
</div>
</div>

Having trouble toggling an animation when clicked on

I am trying to make a div that expands in height when clicked on, and then goes back to its original size when clicked on again. I have tried to use .toggle but whenever I do every div (with the related class) completely vanishes. I posted a code pen below so you can easily view the codes effects.
http://codepen.io/JoshuaHurlburt/pen/JKqAPr
<div>
<div class='box' id='emailVer'>
<h2 id='payText'>PAYMENT</h2>
</div>
<div class='box' id='accCust'>
<h2 id='acText'>ACCOUNT CUSTOMIZATION</h2>
</div>
<div class='box' id='pay'>
<h2 id='evText'>EMAIL VERIFICATION</h2>
</div>
</div>
JS:
var main = function(){
$('.box').click(function() {
$(this).animate({
height: "300px"
},200 );
}
)}
$(document).ready(main);
I decided to leave out the CSS, but I will edit it in if anyone thinks it is important to the solution
There's probably a better solution than this but here is one-
Replace your script file with this
var main = function(){
$('.box').click(function() {
var el = $(this);
if (!el.hasClass('selected')) {
el.animate({
"height": "300px"
}, 200)
el.addClass("selected");
} else {
el.animate({
"height": "75px"
}, 200);
el.removeClass("selected");
}
}
)}
$(document).ready(main);
What you need is a way to track what has already been selected (and animated) and what has not. I chose to add a class (selected) and check to see if the element has that class. If it has not yet been selected, animate to 300px and add the class, else animate back to 75px and remove it.
Try .slideToggle
$( "#clickme" ).click(function() {
$( "#book" ).slideToggle( "slow", function() {
// Animation complete.
});
});
The toggle functions in jQuery toggle the visibility of an element which is why they disappear.
I believe what you are looking for is .toggleClass. See http://api.jquery.com/toggleclass/. You can then create another class with the expanded height properties. Which will be toggled on and off on click.
Adding height to your existing transition property on box will handle the animation.
CSS
.box {
width:300px;
height:75px;
margin:0 auto;
-webkit-transition:box-shadow 1s, height 1s;
transition: box-shadow 1s, height 1s;
}
.expanded {
height: 300px;
}
JS
var main = function(){
$('.box').click(function() {
$(this).toggleClass('expanded');
}
)};
$(document).ready(main);

How do I animate moving a list item to the top?

I have a list and would like to move the item to the top when it's clicked on. Simultaneously, all other items should move down to make space.
That's what I have so far:
<ul id="list">
<li id="one">item-1</li>
<li id="two">item-2</li>
<li id="three">item-3</li>
<li id="four">item-4</li>
</ul>
//
$('li').on('click', function () {
$(this).css({ position : 'absolute', top : $(this).position().top });
var height = $(this).parent().children().first().height();
var list = $(this).parent();
$(this).animate({top: '0px'}, { duration: 500, queue: false });
list.children().each(function( index, element) {
var $liElement = $(element);
if($liElement != $(this))
{
$liElement.animate({top: height + 'px'}, { duration: 500, queue: false });
}
});
});
Here is the link: http://jsfiddle.net/5qgnjvdp/
I see the item moving on top but all others don't move at all. What is wrong here?
Should I use prepend() to insert the list item on top when the animation is finished?
While not really an "animation", I was working on something some time ago along similar lines. What I ended up using was a slideUp, then a slideDown to give a sense of animation without actual animation connected to the move.
$('li').click(function() {
$(this).slideToggle(500, function() {
$(this).prependTo('#list').slideToggle(500); });
});
li { list-style: none; background: #ddd;padding: 5px 10px; border: 1px solid #aaa; margin: 10px; text-transform: uppercase; font-weight: bold;color:#fff; }
#list { margin:20px; padding:0; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<ul id="list" data-role="listview">
<li id="one">item-1</li>
<li id="two">item-2</li>
<li id="three">item-3</li>
<li id="four">item-4</li>
</ul>
$('li').click(function() {
$(this).slideToggle(500, function() {
$(this).prependTo('#list').slideToggle(500); });
});
fiddle update
Again, I realize this isn't really an animation beyond the slide toggles, but it conveys a sense of interactivity similar to an animation.
There are a couple of problems with your script.
When comparing $liElement != $(this) you are in the scope of the each function where this refers to the current list child, which is the same as element. Store the clicked li in a variable outside of the looping function and compare with that. Also no need to compare the $(...) objects. element != clickedLi would suffice.
When you animate the other li elements they don't have position: absolute (or relative) so you won't see their movement.
If you assign the other li elements an absolute position you move all of them to the same position, the second row in the list. You could use position relative to move them down. You should just make sure to exclude the elements that come after the original position of the clicked li.
After the animation is complete you should insert the list item as the first child of the list and then remove the absolute/relative positioning, including the top style to make sure it works a second time (and to ensure that the visible representation is in line with the elements' structure.

Making a div change size with animate, addClass and RemoveClass

This is my first question here, feel free to tell me if I am not specific enough or whatever I do wrong!
I want a jquery method which change all divs with the class "passive" to height 500 px and passive-->active, so there would be another method which changes the height back to 100px. The first half is working, I got the class changed, but the second animation won't happen. All I have in html is one div with the class of passive.
$("document").ready(function(){
$(function() {
$(".passive").click(function(){
$(this).animate({height:'500px'});
$(this).addClass("active");
$(this).removeClass("passive");
});
$(".active").click(function(){
$(this).animate({height:'100px'});
$(this).addClass("passive");
$(this).removeClass("active");
});
});
});`
jQuery.animate() is costly and choppy. You will get a smoother transition by just toggling the class and using CSS to transition
.passive {
height:100px;
transition:height 1s;
}
.active {
height:300px;
}
Array
.from(document.querySelectorAll('.passive'))
.forEach(
e => e.addEventListener(
'click',
evnt => e.classList.toggle('active')
)
)
.container { display:flex; }
.container>div {
flex:1 auto;
}
.passive {
background-color:red;
margin:5px;
height:100px;
width:20px;
transition:height 1s;
}
.active {
height:300px;
}
<div class="container">
<div class="passive" tabindex=1></div>
<div class="passive" tabindex=2></div>
<div class="passive" tabindex=3></div>
</div>
You are trying to interact with a class added after the DOM loaded. By default, click functions will only work with elements that exist on load. You can either use event delegation or add a base class to the element. If you add a base class, you can simplify the click function.
You can do an if/else to check if the element has a certain class using hasClass. Also, you can chain together the $(this) methods inside the if/else blocks.
$("document").ready(function() {
$(function() {
$("baseclassname").click(function() {
if ($(this).hasClass('passive')) {
$(this).animate({ height: '500px' });
$(this).addClass("active");
$(this).removeClass("passive");
// $(this).animate({ height: '500px' }).addClass('active').removeClass('passive');
} else {
$(this).animate({ height: '100px' });
$(this).addClass("passive");
$(this).removeClass("active");
// $(this).animate({ height: '100px' }).addClass('passive').removeClass('active');
}
});
});
});

How to slide a div by hovering over another div with jquery?

I have some code here and cannot find out how to make this work because I am still really new to javascript and jquery. I will have a demo below so you can see what I have going on. In the demo there is div positioned left:-60px so it is hidden, this div also has class of 'show' which positions the div to left:0 There is also the long black box which is another div. I want to make it so when you hover over the long black box, it will activate the 'show' property of the other div. Here is my code:
var $showSidemenu = $('#sidemenu');
var $sidemenuShowButton = $('#sidemenuShowButton');
function(showSidemenu){
$showSidemenu.onmouseover($sidemenuShowButton).addclass('show');
}
#sidemenuShowButton {
width:60px;
height:100%;
background:#000000;
top:0;
left:0;
position:fixed;
}
#sidemenu {
width: 60px;
height:100%;
background-color: #383D3F;
position: fixed;
top: 0;
left:-60px;
float: left;
z-index:0;
}
#sidemenu.show {
left: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="sidemenuShowButton"></div>
<div id="sidemenu"></div>
try this jQuery:
var $showSidemenu = $('#sidemenu');
var $sidemenuShowButton = $('#sidemenuShowButton');
$(document).ready(function(){
$sidemenuShowButton.on('mouseover',function(){
$('#sidemenu').addClass("show");
});
$sidemenuShowButton.on('mouseout',function(){
$('#sidemenu').removeClass("show");
});
// to make the showed div stay while the mouse is still over it
$('#sidemenu').on('mouseover',function(){
$(this).addClass("show");
});
$('#sidemenu').on('mouseout',function(){
$(this).removeClass("show");
});
});
if you want a little animation, you can use CSS3 Transition for that, like this one:
#sidemenu {
transition: 1s;
}
HERE'S A WORKING DEMO
Use JQuery's show and hide functions. If you set your #sidemenu to display: none;. And then use this this function it will work:
$('#sidemenu').mouseenter(function(){
$("#sidemenuShowButton").show();
}).mouseleave(function(){
$("#sidemenuShowButton").hide();
});
No classes are needed in this way.
Your JS should looks like this:
var $showSidemenu = $('#sidemenu');
var $sidemenuShowButton = $('#sidemenuShowButton');
$sidemenuShowButton.on('mouseover', function(){
$showSidemenu.addClass('show')
});
First of all you are using function which never used and cannot be used since it have no name. Second, there is no onmouseover method in jQuery (read the manual ;-). Third you have to pass there a callback function which will be involved when 'mouseover' event occurs.
And if you wanna hide your div when mouse leaves add
$showSidemenu.on('mouseleave', function(){
$showSidemenu.removeClass('show')
});
You should use $showSidemenu in this case instead of $sidemenuShowButton because when $showSidemenu apears mouse leaves $sidemenuShowButton and enters $showSidemenu. But if you wanna use css3 animation - it's better to make appearing div nested to control div and use event bobbling.
And jsfiddle
Solution:Use mouseover and mouseout events to add and remove class "show"
I have intentionally added mouseout event on showSidemenu as when it slides in it goes over sidemenuShowButton div and comes on top of it, so attaching mouseout to sidemenuShowButton will cause flickering effect.
http://api.jquery.com/category/events/mouse-events/
$sidemenuShowButton.mouseover(function(){
$showSidemenu.addClass("show");
}
);
$showSidemenu.mouseout(function(){
$showSidemenu.removeClass("show");
}
);
Working JS Fiddle Example: http://jsfiddle.net/2cjjdm7j/1/

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