Fade out / fade in effect with CSS3 - javascript

I'm trying to create a fade out / fade in effect with CSS3 animations. Here is my CSS :
#buttonright, #buttonleft{
-webkit-transition:opacity 0.5s linear;
-moz-transition:opacity 0.5s linear;
-o-transition:opacity 0.5s linear;
-ms-transition:opacity 0.5s linear;
transition:opacity 0.5s linear;
}
And the Javascript (i'm using jquery) :
$('#buttonleft').css("opacity","0");
$('#buttonright').css("opacity","0");
$('#buttonleft').css("opacity","1");
$('#buttonright').css("opacity","1");
It looks like the browser think it's stupid to set the opacity to 0 then to set it back to 1. Does someone has a possible solution ?
Thank you.

Edit: Regard yaki's answer for a pure CSS3 solution.
You're not giving the browser enough time to complete the transition. If you add a setTimeout to the latter statements, it should work.
Something like this:
$('#buttonleft').css("opacity","0");
$('#buttonright').css("opacity","0");
setTimeout(function(){$('#buttonleft').css("opacity","1");}, 5000);
setTimeout(function(){$('#buttonright').css("opacity","1");}, 5000);

Actually accepted solution is not CSS3 solution (it's still requires some javascript code). Please check the code below.
html:
<a id='buttonleft'>Button left</a>
<a id='buttonright'>Button right</a>
css:
#buttonleft, #buttonright {
text-align: left;
background: rgb(180,180,255);
opacity:0.5;
/* property duration timing-function delay */
-webkit-transition: opacity 500ms linear 100ms;
-moz-transition: opacity 500ms linear 100ms;
-o-transition: opacity 500ms linear 100ms;
transition: opacity 500ms linear 100ms;
}
#buttonleft:hover, #buttonright:hover {
opacity: 1.0;
}

something like this?
$('#button').hover(
function() {
$(this).animate({opacity: 0}, 500);
},
function() {
$(this).animate({opacity: 1}, 500);
}
);

You can use CSS3 animations now that it is more supported than when you asked the original question. I've created a jsFiddle showing how to do this on hover.
#keyframes demo {
from {
animation-timing-function: ease;
opacity: 1;
}
50% {
animation-timing-function: ease-in;
opacity: 0;
}
to {
animation-timing-function: ease-inout;
opacity: 1;
}
}
img:hover
{
animation-delay: 0s;
animation-duration: 2s;
animation-iteration-count: 1;
animation-name: demo;
}

Related

Setting and element's opacity and then animating it - all with JS

I am working on a new site that is using page transitions. The old content fades away and the new content fades in - at least that's what should happen.
When the new content is loaded, I use JS to set it's opacity: 0
this.newContainer.style.opacity = 0;
Then, I add a new class so I can use CSS transitions
this.newContainer.classList.add("animate-in");
This is the CSS for the .animate-in
.wrapper.animate-in {
opacity: 1;
visibility: visible;
-webkit-transition: all 1000ms ease-in-out;
-moz-transition: all 1000ms ease-in-out;
-ms-transition: all 1000ms ease-in-out;
-o-transition: all 1000ms ease-in-out;
transition: all 1000ms ease-in-out;
}
However, this doesn't work. The code doesn't animate the opacity from 0 to 1. Instead, it is animating backwards, from 1 to 0. It seems like the classList.add doesn't hear the previous line of code.
Anyone know how to fix this?
EDIT
OK, so I learned that using the JS style.opacity will completely override any opacity CSS rules. This is my problem. How do I get around this?
Try to use css animation and remove code--> this.newContainer.style.opacity = 0;
.wrapper.animate-in {
opacity: 1;
transition: all 1000ms ease-in-out;
animation: animate-in01 1s;
animation-iteration-count: 1;
}
#keyframes animate-in01{
0% {
opacity: 0;
}
100% {
opacity: 1;
}
}

Rails, JS, CSS - can't get transition effect working

I have bar charts in my application that work fine but i'd like them to transition left to right on load across the screen. So I have tried the following:
CSS:
.progress-meter-interest{
background-color: #FFD733;
width: 250px;
}
.progress-meter-interest.horizTranslate {
animation-direction:normal;
-webkit-transition: 3s;
-moz-transition: 3s;
-ms-transition: 3s;
-o-transition: 3s;
transition: 3s;
}
In view:
<div class="progress-meter-interest horizTranslate" style ="width: <%= homework.average_interest * 100 / 5 %>%"><%= homework.average_interest %></div>
JS:
<script>
$(document).ready(function() {
$( ".progress-meter-interest" ).each(function() {
var length = $( this ).data("bar-length");
$( this ).css('width', length);
});
});
</script>
Clearly I am not defining data-bar-length as a set value in the div as the graphs are dynamic. When I do define it the transition effect works.
How do I get it to work with the dynamic data?
Thanks. Appreciate any help.
The transition shorthand property needs to know which property to transition. At the very least you will need to change transition: 3s to transition: width 3s so your CSS should look like:
.progress-meter-interest{
background-color: #FFD733;
width: 250px;
}
.progress-meter-interest.horizTranslate {
animation-direction:normal;
-webkit-transition: width 3s;
-moz-transition: width 3s;
-ms-transition: width 3s;
-o-transition: width 3s;
transition: width 3s;
}
See https://developer.mozilla.org/en-US/docs/Web/CSS/transition for more details on the transition property.

Javascript native implementation div display/hide with animate

I am looking for a native JS solution to toggle div display using display:'none' and display:'block' properties. I have the first part done. I only need the part to do a simple fadeIn and fadeOut animation.
I need to use native JS and display:block,none.
var e = document.getElementById('calendarPickerContainer');
if (e.className == 'visible') {
e.className = 'hidden';
} else {
e.className = 'visible';
}
need to adapt to this css
.visible{
display:block;
}
.hidden {
display:none;
}
If you wanna use a pure JavaScript fadeIn and fadeOut, try this:
transition: opacity 1s linear;
This is a pure CSS method.
#cont {-webkit-transition: opacity 1s linear; -o-transition: opacity 1s linear; transition: opacity 1s linear;}
#cont.hidden {opacity: 0;}
<button onclick="cont.classList.add('hidden'); setTimeout('cont.style.display=\'none\'', 1000);">Click</button>
<div id="cont">
Hello
</div>
Working Snippet (includes toggle):
#cont {-webkit-transition: opacity 1s linear; -o-transition: opacity 1s linear; transition: opacity 1s linear; opacity: 1;}
#cont.hidden {opacity: 0; -webkit-transition: opacity 1s linear; -o-transition: opacity 1s linear; transition: opacity 1s linear;}
<button onclick="if (cont.style.display != 'none') { cont.classList.add('hidden'); setTimeout('cont.style.display=\'none\'', 1000); } else {cont.style.display='block'; setTimeout('cont.classList.remove(\'hidden\')', 10);}">Click</button>
<div id="cont">
Hello
</div>
You can achieve this easily with CSS3
.visible {
visibility: visible;
opacity: 1;
transition: opacity 2s linear;
}
.hidden {
visibility: hidden;
opacity: 0;
transition: visibility 0s 2s, opacity 2s linear;
}
Native JS fade function:
var s = document.getElementById('calendarPickerContainer').style;
s.opacity = 1;
(function fade(){(s.opacity-=.1)<0?s.display="none":setTimeout(fade,40)})();
You can simplfy this with classList
document.querySelector('.toggle').addEventListener('click',function(e) {
e.target.classList.toggle('hide');
})
Css:
div {
transition:all 0.3s ease-in;
}
.hide {
opacity: 0;
}
We're using opacity since display cannot be animated.
Example

jQuery Rotate with slideToggle

I have a div that when you click on it opens up the the content within, at the top of the bar I have an arrow image that if the content is closed (default position) the arrow is pointing to the right and when the content is open I want the arrow image to rotate to pointing down.
I am using jQueryRotate to rotate the image and I have all the elements working, but what I can't get it to work when toggling, I can only get the image to rotate once when opening the content, I have where I have got to here
$("#ProductHeaderWrap1").click(function () {
$("#ProductDetailsToggle1").stop().slideToggle("slow");
});
$("#ProductHeaderWrap1").click(function () {
$("#ProductHeaderWrap1").find(".arrow").rotate({
animateTo: 90
}, {
duration: 500
});
});
http://jsfiddle.net/cgF4a/ along with some worked on jQuery attempts, I just need the image to rotate to 0 when clicked to close the div.
Thanks for any help,
J.
It's easier to do this with CSS, take a look:
img.open {
-webkit-transform:rotate(90deg);
-moz-transform:rotate(90deg);
transform:rotate(90deg);
-webkit-transition: -webkit-transform 1s linear;
-moz-transition: -moz-transform 1s linear;
-o-transition: -o-transform 1s linear;
transition: transform 1s linear;
}
img {
-webkit-transition: -webkit-transform 1s linear;
-moz-transition: -moz-transform 1s linear;
-o-transition: -o-transform 1s linear;
transition: transform 1s linear;
}
$(document).ready(function () {
$("#ProductHeaderWrap1").click(function () {
$("#ProductDetailsToggle1").stop().slideToggle("slow");
$(this).find("#Image1").toggleClass("open");
});
});
Updated JSFiddle

jQuery on hover opacity

I have tried and failed to get this working. Basically I am trying to get it so that when you hover over one div, it should change the sibling's opacity to 0.5 that has class="receiver".
If you see this jsFiddle, there are 2 divs with class="outerwrapper", and both contain 2 divs of classes hover and receiver. When you hover over the div with class hover, the receiver's opacity should be set to 0.5, but only the one inside the same div (outerwrapper).
Any help would be much appreciated. Thanks in advance.
You don't need to use jQuery, or JavaScript, for this (though you can1), CSS is quite capable in most browsers of achieving the same end-result:
.hover:hover + .receiver {
opacity: 0.5;
}
JS Fiddle demo.
And also, even with 'only' CSS, in modern/compliant browsers, it's possible to use fade transitions (or, strictly speaking, to transition the opacity):
.receiver {
width: 50px;
height: 50px;
background-color: blue;
opacity: 1;
-webkit-transition: opacity 1s linear;
-o-transition: opacity 1s linear;
-ms-transition: opacity 1s linear;
-moz-transition: opacity 1s linear;
transition: opacity 1s linear;
}
.hover:hover + .receiver {
opacity: 0.5;
-webkit-transition: opacity 1s linear;
-o-transition: opacity 1s linear;
-ms-transition: opacity 1s linear;
-moz-transition: opacity 1s linear;
transition: opacity 1s linear;
}
​
JS Fiddle demo.
I was going to provide a JavaScript/jQuery solution as well, but there are several others already posted, now, and I'd rather not repeat other people's answers in my own (it just feels like plagiarism/copying).
Something like this would do it: http://jsfiddle.net/UzxPJ/3/
$(function(){
$(".hover").hover(
function(){
$(this).siblings(".receiver").css("opacity", 0.5);
},
function(){
$(this).siblings(".receiver").css("opacity", 1);
}
);
});​
References
.siblings() - Get the siblings of an element - http://api.jquery.com/siblings/
.hover() - Catch the mouseover/mouseout events - http://api.jquery.com/hover/
$('.hover').hover(function() {
$(this).next('.receiver').css('opacity', 0.5);
}, function() {
$(this).next('.receiver').css('opacity', 1.0);
});
http://jsfiddle.net/2K8B2/
(use .siblings or .nextAll if the .receiver is not necessarily the next element)
This works:
​$(document).ready(function() {
$('.hover').hover(function() {
var $parent = $(this).parent('.outerwrapper');
$parent.find('.receiver').css({ opacity : 0.5 });
}, function() {
var $parent = $(this).parent('.outerwrapper');
$parent.find('.receiver').css({ opacity : 1 });
});
});​

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