Develop Reference

Anime.js how to reverse this animation?

I've recently started working with Anime.js to animate my designs and I´ve been stuck in this for a while now, bet for many this is very simple!
I have a button that enlarges my div and would like to have the div in its initial state if the icon is clicked again.
My HTML:
var boxGetsLarger = anime({
targets: '.agent-button',
width: {
value: '+=300',
duration: 200,
easing: 'linear'
},
borderRadius: {
value: 83
},
duration: 200,
height: {
value: '+=20'
},
easing: 'linear',
autoplay: false
});
document.querySelector('.agent-button').onclick = boxGetsLarger.play;
.agent-button {
display: flex;
justify-content: space-between;
border-radius: 100px;
background: #ffffff;
box-shadow: 0pt 2pt 10pt #0000001f;
height: 91px;
width: 91px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/animejs/2.2.0/anime.min.js"></script>
<div class="agent-button close">
<img src="img/audio-bars.svg">
</div>

It is shame there is no built-in toggle function but there is a reverse function what this does is toggle the internal attribute reversed which, in turn, controls what the play function does.
In theory, you can just call reverse after play like so
var boxGetsLarger = anime({
targets: '.agent-button',
width: {
value: '+=300',
duration: 200,
easing: 'linear'
},
borderRadius: {
value: 83
},
duration: 200,
height: {
value: '+=20'
},
easing: 'linear',
autoplay: false
});
document.querySelector('.agent-button').onclick = function() {
boxGetsLarger.play();
boxGetsLarger.reverse();
}
.agent-button {
display: flex;
justify-content: space-between;
border-radius: 100px;
background: #ffffff;
box-shadow: 0pt 2pt 10pt #0000001f;
height: 91px;
width: 91px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/animejs/2.2.0/anime.min.js"></script>
<div class="agent-button close">
<img src="img/audio-bars.svg">
</div>
Only I found reverse was running before play was finished leading to some strange behaviour, I'd recommend taking advantage of the 'finished' promise built-in like so
var boxGetsLarger = anime({
targets: '.agent-button',
width: {
value: '+=300',
duration: 200,
easing: 'linear'
},
borderRadius: {
value: 83
},
duration: 200,
height: {
value: '+=20'
},
easing: 'linear',
autoplay: false
});
document.querySelector('.agent-button').onclick = function() {
boxGetsLarger.play();
boxGetsLarger.finished.then(() => {
boxGetsLarger.reverse();
})
}
.agent-button {
display: flex;
justify-content: space-between;
border-radius: 100px;
background: #ffffff;
box-shadow: 0pt 2pt 10pt #0000001f;
height: 91px;
width: 91px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/animejs/2.2.0/anime.min.js"></script>
<div class="agent-button close">
<img src="img/audio-bars.svg">
</div>
This will now only reverse the direction when play is finished.
I hope you find this helpful.

I use this to toggle anime.js animations on a single button.
To initiate reverse() the animation must have run once. You can check this by evaluating the property: 'began'. The first time your animation runs this property will be set 'true'.
console.log(boxGetsLarger); // began: false
document.querySelector('.agent-button').onclick = function() {
boxGetsLarger.play();
if (boxGetsLarger.began) {
boxGetsLarger.reverse();
}
console.log(boxGetsLarger); // began: true
}

What fixed it for me was juliangarnier/anime#577 (comment):
I encountered this issue today, here is my solution as a pen.
I think the confusion arises from when animations are paused, and how the reverse() method works:
Non-looped animations are automatically paused when they reach the end (or beginning when reversed).
The reverse() method only changes the playback direction, and doesn't unpause a paused animation.
Doing reverse() on an animation while it is in progress means it will continue to play in the opposite direction, but if the animation is at the beginning/end (i.e. paused), you will also need to do play() to get it started again.
From his linked CodePen:
function toggle() {
if (anim.began) {
anim.reverse()
if (anim.progress === 100 && anim.direction === 'reverse') {
anim.completed = false
}
}
if (anim.paused) {
anim.play()
}
}

Give this a try: (from docs)
boxGetsLarger.reverse();

I used this to toggle back and forth between an "open" state and a "closed" state.
const toggle = (animation, open) => {
if (open) {
animation.play();
if (animation.reversed) {
animation.reverse();
}
} else {
animation.play();
if (!animation.reversed) {
animation.reverse();
}
}
}

Toggling divs to slide at certain times

Please see this fiddle http://jsfiddle.net/rabelais/6bt70uhj/9/
$('#name-a').click(function() {
$('#bio-line-1').animate({width: 'toggle'});
window.setTimeout(function (){$('#bio-line-2').slideToggle( "slow" ); }, 300);
When clicking the link the first lines slides in from the left, and then when that is finished the second line slides in from the top. When it slides back to be hidden, the first line slides aways before the second line does.
How can I change it so the second line slides away before the first line slides away?

$('#name-a').click(function () {
if ($('#bio-line-1').css('display') == 'none') {
$('#bio-line-1').animate({ width: 'toggle' });
window.setTimeout(function () {
$('#bio-line-2').slideToggle("slow");
}, 300);
}
else {
$('#bio-line-2').slideToggle("slow");
window.setTimeout(function () {
$('#bio-line-1').animate({ width: 'toggle' });
}, 300);
}
});
DEMO

I think this is what you want:
$('#name-a').click(function () {
window.setTimeout(function () {
$('#bio-line-2').slideToggle("slow", function () {
$('#bio-line-1').animate({
width: 'toggle'
});
});
}, 300);
});
Demo: https://jsfiddle.net/tusharj/6bt70uhj/11/

I think you can do
var $l2 = $('#bio-line-2'),
$l1 = $('#bio-line-1');
var $a = $('#name-a').click(function() {
$a.toggleClass('visible');
var visible = $a.hasClass('visible'),
$f = visible ? $l1 : $l2,
$s = visible ? $l2 : $l1;
$f.animate({
width: 'toggle'
});
window.setTimeout(function() {
$s.slideToggle("slow");
}, 300);
});
#name-a {
left: 38px;
position: fixed;
top: 38px;
z-index: 1;
}
#bio-line-1 {
left: 150px;
position: fixed;
top: 35px;
width: 633px;
z-index: 1;
}
#bio-line-1 p {
color: #333333;
display: block;
float: right;
font-size: 16px;
line-height: 21px;
width: 552px;
}
#bio-line-2 {
left: 150px;
margin-top: 20px;
position: fixed;
top: 38px;
width: 633px;
z-index: 1;
}
#bio-line-2 p {
color: #333333;
display: block;
float: right;
font-size: 16px;
line-height: 21px;
width: 552px;
}
.hidden {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="name-a">
John Love
</div>
<div id="bio-line-1" class="hidden">
<p>holds a Master's Degree from the University of the Arts</p>
</div>
<div id="bio-line-2" class="hidden">
<p>London and currently works in London.</p>
</div>

$('#name-a').click(function() {
if($("#bio-line-2").is(":visible")){
window.setTimeout(function (){
$('#bio-line-1').animate({width: 'toggle'});
}, 300);
$('#bio-line-2').slideToggle( "slow" );
}
else{
window.setTimeout(function (){
$('#bio-line-2').slideToggle( "slow" );
}, 300);
$('#bio-line-1').animate({width: 'toggle'});
}
});

i have made some condition that while showing the lines, line number 1 will appear first and then line number 2 will appear. and while hiding lines, line number 2 will hide first and then line number 1 will hide... i think this is what you trying
Here is fiddle link
Thank You

I'd do something like this. I would also not use a setTimeout as it is not a reliable way to trigger consecutive animations. The timer can trigger at different times depending on what is happening in the UI thread and therefore ruining the effect you are trying to create. You should use the animate success callback of each animation in order to trigger the next one at the exact right time.
http://jsfiddle.net/6bt70uhj/23/
var $line1 = $('#bio-line-1'),
$line2 = $('#bio-line-2');
$('#name-a').click(function() {
if (!$line1.is(":visible")) {
$line1.animate({
width: 'toggle'
}, 300, function () {
$line2.slideToggle("slow");
});
} else {
$line2.slideToggle("slow", function() {
$line1.animate({
width: 'toggle'
});
});
}
});

get the progress with animate() JQUERY

Here is the spinet:
$('#processing .progress-bar').animate({'width':'60%'},4000);
Is it possible to display how the milliseconds are being countdown by the function?
for instance I want to be able to display:
4000
3000
2000
1000
0000
then the function stops

You can add a step function to the jquery animate, and inside calcualte how much time is left for the animation to finish:
$(function () {
var Now = 0;
var animationDuration = 4000;
var DesiredWidth = "200";
$(".test").animate({
width: DesiredWidth
}, {
easing:"linear",
duration: animationDuration,
//the argument in the step call back function will hold the
// current position of the animated property - width in this case.
step: function (currentWidth,fx) {
Now = Math.round((100/DesiredWidth)*currentWidth);
$(".ms_span").text(Now+"%");
}
});
});
div {
width: 0;
height: 100px;
display: block;
background: purple;
position: relative;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="test"></div>
<br/>Percent: <span class="ms_span">

var duration = 4000,
interval = 1000,
pbar = $('#processing .progress-bar');
pbar.text( duration );
var cd = setInterval(function() {
duration -= interval;
pbar.text( duration );
}, interval);
pbar.animate({'width':'60%'}, duration, function() {
clearInterval(cd);
pbar.text( '0000' );
});
.progress-bar {
background-color: black;
color: white;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="processing">
<div class="progress-bar">pBar</div>
</div>

After looking at #Banana's solution, I realized that I had completely forgotten about the step function and the new(ish) progress function, both of which can be passed to .animate. My updated solution is below, and I have removed the other to avoid confusion.
var $steps = $("#steps");
$('#processing .progress-bar').animate({
'width': '60%'
}, {
duration: 4000,
progress: function(prom, prog, rem) {
$steps.html("Prog: " + prog + "<br/>Rem: " + rem);
}
});
#processing {
width: 80%;
margin: 5%;
border: 2px solid black;
height: 25px;
}
#processing .progress-bar {
height: 100%;
background: lime;
width: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div>
<div id="processing">
<div class="progress-bar"></div> <span id="steps"></span>
</div>
</div>
As a side-note, depending on what you are planning to use this for, the other thing that you might want to look into is jQuery's .progress method, which handles progress notifications. Note that I am fairly certain that calling .progress on animations themselves won't have any effect unless you use a solution like the above to make progress notifications at each step of the animation. This is done with calls to .notify or .notifyWith but doing this in an animation is a little extreme. Regardless, this can be useful for situations in which you have an asynchronous call running for an indeterminate amount of time.
Docs for deferred.promise.
Docs for deferred.notify.
Docs for deferred.notifyWith.

check the pointer position on an element in jquery

I have this simple reveal caption on hover animation using jquery, I am using hover and animate in jquery. Everything is working fine except in one case - when the hovering on image animation is done and the caption is revealed, if the mouse pointer was on the revealed caption the hovering out animation starts, assuming I hovered out of the image ... so i want to check if the mouse pointer is on the image itself or on the caption before applying the hovering out handler.
edited here is the markup
$( ".img-1" ).hover(function() {
$( ".cap-1" )
.animate({ "opacity": "1" }, 100 )
.animate({ "top": "-=50%" }, 200 )
.animate({ "top": "+=10%" }, 200 );
}, function() {
$( ".cap-1" )
.animate({ "top": "+=40%" }, 300 )
.animate({ "opacity": "0" }, 100 );
});
.img-1 {
width: 100%;
height: 400px;
background-color: rgba(0,0,0,0.4);
}
.friends-caption {
position: absolute;
width: 79.5%;
height: 37%;
top: 99%;
bottom: 0px;
left: 20px;
right: 0px;
background-color: rgba(102, 102, 102, 0.7);
border: none;
font-size: 16px;
font-family: inherit;
text-align: center;
color: #fff;
padding-top: 8%;
opacity: 0;
cursor: default;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<div class="col-sm-2 col-sm-offset-1">
<img src="images/awn1.jpg" class="img-thumbnail img-1">
<p class="friends-caption cap-1">Costa Cafe</p>
</div>

http://liveweave.com/C8NNC6
http://jsfiddle.net/zwzoresL/
Why not just apply the hover on the container instead of the image?
$('.col-sm-2').hover(function () {
$( ".cap-1" )
.animate({
"opacity": "1",
"top": "-=75%"
}, 300 )
.animate({
"top": "+=25%"
}, 200 );
}, function () {
$( ".cap-1" )
.animate({
"top": "+=50%",
"opacity": "0"
}, 300 );
});
.img-1 {
width: 100%;
height: 50%;
background: rgb(0,0,0);
background: rgba(0,0,0,0.4);
}
.friends-caption {
position: absolute;
height: 25%;
top: 384px;
left: 10%;
right: 10%;
background: rgb(102, 102, 102);
background: rgba(102, 102, 102, 0.7);
border: none;
font: 16px inherit;
text-align: center;
color: #fff;
padding-top: 16px;
cursor: default;
opacity: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="col-sm-2 col-sm-offset-1">
<img src="images/awn1.jpg" class="img-thumbnail img-1">
<p class="friends-caption cap-1">Costa Cafe</p>
</div>

The simplest solution to your problem would be to add a pointer-events property to your .friends-caption css rule:
.friends-caption {
/* existing rules */
pointer-events: none;
}
This will prevent mouse events from triggering from the caption element (https://developer.mozilla.org/en-US/docs/Web/CSS/pointer-events).
However, this solution might not have the cross-browser compatibility that you desire. In that case, I think we can do the following to achieve a solution in JavaScript / jQuery:
First, for better organization, let's move the animate steps into their own functions:
var animateIn = function () {
$('.cap-1' )
.animate({ "opacity": "1" }, 100 )
.animate({ "top": "-=50%" }, 200 )
.animate({ "top": "+=10%" }, 200 );
};
var animateOut = function () {
$('.cap-1')
.animate({ "top": "+=40%" }, 300 )
.animate({ "opacity": "0" }, 100 );
};
We can attach the hover event to the .cap-1 element as well as the .img-1 because we want to know when the mouse has entered either element. Next, we need to use a setTimeout in our unhover handler because we want time to track if the mouse has moved from one of our targeted elements to the other -- if it has, we can clear our timeout, cancelling our animateOut call. Lastly, we will need to track whether our caption is in the "in" state so that we don't allow it to animate in when it is aleady in, or out when it is already out (which would cause the caption to repeatedly jump up or down our page):
var hover_timeout;
var caption_is_in;
$('.img-1,.cap-1').hover(function () {
if ('number' === typeof hover_timeout) {
clearTimeout(hover_timeout);
}
if (!caption_is_in) {
caption_is_in = true;
animateIn();
}
}, function () {
hover_timeout = setTimeout(function () {
if (caption_is_in) {
caption_is_in = false;
animateOut();
}
}, 50);
});
I have created a fiddle which can be found at: http://jsfiddle.net/76484/sqyc0b61/.
EDIT:
I have realized that my solution is incomplete because the caption can still trigger the hover event when it is in its "out" state. To fix this, we could add a 'container' class to the element that contains the image and caption and add the following css rule:
.container {
position:relative;
overflow:hidden;
}
Updated fiddle: http://jsfiddle.net/76484/sqyc0b61/1/

Animating multiple divs by switching their classes

i am having a hard time trying to animate this box, so the changes go smooth, but i just cannot figure out how to keep everything together. Help would be really appreciated. (already tried with 'switchClass') Here is the whole code:
<script src="jquery.js"></script>
<script src="http://code.jquery.com/ui/1.10.0/jquery-ui.js"></script>
<style>
#box {
position: relative;
margin: auto;
padding: auto;
display: block;
width: 167px;
height: 167px;
}
#box .item {
position: relative;
margin: 0;
display: block;
width: 100%;
height: 33%;
cursor: pointer;
}
#box .over {
height: 84%;
}
#box .other {
height: 8%;
}
#top {
background: red;
}
#mid {
background: green;
}
#bot {
background: blue;
}
</style>
<script>
function anim(item) {
$('.item').attr('class', 'item other');
$('#' + item.id).attr('class', 'item over');
}
function clean() {
$('.item').attr('class', 'item');
}
</script>
<div id='box' onmouseout="clean()">
<div id='top' class='item' onmouseover='anim(this)'></div>
<div id='mid' class='item' onmouseover='anim(this)'></div>
<div id='bot' class='item' onmouseover='anim(this)'></div>
</div>
edit: this code is running just fine, but its just an example of final output (just some animations needed)

Maybe this is not super cool, but seems to do job:
var $items = $('.item').on({
mouseover: function () {
$items.removeClass('over other');
$items.stop().filter(this).animate({height: '84%'}, function () {
$(this).addClass('over');
})
.end().not(this).animate({height: '8%'}, function () {
$(this).addClass('other');
});
},
reset: function() {
$items.removeClass('over other').stop().animate({height: '33%'});
}
});
$('#box').mouseout(function() {
$items.trigger('reset');
});
http://jsfiddle.net/dfsq/4vnkh/1/

If you want to animate the change, please take a look at jQuery animate
Something like this:
$('.item').mouseenter(function() {
$('.item').animate({
height: 80%
}, 500, function() {
// Animation complete.
});
});
$('.item').mouseleave(function() {
$('.item').animate({
height: 33%
}, 500, function() {
// Animation complete.
});
});
in this case you don't need onmouseout or onmouseover

If your animation is based solely on CSS class attributes why not use CSS3 hover pseudo-selector?
Example:
.box {
width: 200px;
}
.box:hover {
width: 400px;
}
<div class="box">Hover over me!</div>
Additional: Response to comments
If you are looking for custom animation duration you can use a callback function with a duration for the initial function call. Here's an example:
$('#div').animate({
width: '200px',
color: 'blue'
}, 5000, function() {
// Animation finished after 5 seconds.
alert("Animation complete!");
});
Addition #2
Your problem child is this little guy:
$('.item').attr('class', 'item other');
This sets each box to 8% height and THEN expands the primary animating box. Remove this and your #box will remain the same height throughout all animations!