Develop Reference

Javascript button appear animation

I have the back to top button that appears when you reach a point on the page, which is working fine, however, when it appears the text is on two lines until the box has finished the animation to appear. So, is there anyway to prevent this? What I mean by the animation is: btt.show('slow');
Code:
$(document).ready(function () {
var btt = $('.back-to-top');
btt.on('click' , function(e) {
$('html, body').animate({
scrollTop: 0
}, 500);
btt.hide('slow');
e.preventDefault();
});
$(window).on('scroll', function () {
var self = $(this),
height = self.height(),
top = self.scrollTop();
if (top > 500) {
btt.show('slow');
} else {
btt.hide('slow');
}
});
});
Example: http://codepen.io/Riggster/pen/WvNvQm

The problem is caused by animating the width of a box, I think it might be better to animate the position of it instead, but - even better - lets use CSS animations!
$(window).on('scroll', function () {
if ($(window).scrollTop() >= 500) {
$(".button").addClass('show');
} else {
$(".button").removeClass('show');
}
});
#wrapper {
width: 100%;
height: 2000px;
}
.button {
position: fixed;
bottom: 50px;
right: -100px;
/* You might still need prefixes here. Use as preferred. */
transition: right 500ms;
}
.button.show {
right: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
<div id="wrapper">
<div class="button">Here's my button!</div>
</div>
I've defined your button as hidden by default, by giving it a position of right: -100px. When we hit the correct scroll position, we add the class show and that triggers the animation performed by CSS and not javascript, as we have the transition property for the property right defined - that way the browser does the heavy lifting.

Toggling show/hide alters your elements width. You either have to put it in a container with display: inline
Or more ideally you might want to change show/hide to jQuery fadeIn() / fadeOut() which is more appropriate for "Back to Top" indicators.
Here is your codepen example modified with inline container:
http://codepen.io/anon/pen/MwWweY

jQuery slide animation on existing divs after prependTo

I have this semi-slider-style UI where new terms are added in from the left: http://jsfiddle.net/v4v5cvkz/. I'm using the jQuery prependTo function to do this. My issue is that I want the terms that are already displayed to perform an animated slide to the right when a new term gets added, rather than suddenly "appear" in the correct position. I did try adding a "displayed" class to terms that had successfully shown up, and tried adding a slide-to-right animation after that, but that didn't quite achieve the effect I was going for (the "displayed" objects were moved much further to the right than I expected).
Here is the problematic code (you'll probably want to view the fiddle to see it in context though):
function addToStream(term, delay) {
setTimeout(function(){
$("<div />")
.addClass("stream_term")
.html(term)
.css({
opacity: 0
})
.prependTo("#stream_terms")
.animate({opacity:1},
{ duration: 1000,
complete: function() {
$(this).addClass("displayed");
}
});
}, delay);
}
Any help here would be greatly appreciated. Thank-you!
*Note: I have access to jQuery UI in my code, though it isn't linked in the fiddle. Also, if anyone knows of a plugin that can do this sort of thing better than I can, please let me know. The closest one I was able to find was Fraction Slider, but I didn't find it obvious how to create a similar UI with it (it might also be overkill for my purposes).

Here's a way to do it:
function addToStream(term, delay) {
setTimeout(function(){
var newDiv = $("<div />");
newDiv.addClass("stream_term")
.html(term)
.css({
opacity: 0,
display: 'none'
}).prependTo("#stream_terms");
var width = newDiv.width();
var height = newDiv.height();
newDiv.css({
width: 0,
height: height,
display: 'inline-block'
})
.animate({
width: width,
margin: '0 10px',
padding: '5px 10px'
}, 1000)
.animate({opacity: 1}, 1000, function(){
$(this).addClass("displayed");
});
}, delay);
}
It also needs the following CSS changes:
.stream_term {
padding: 0;
margin: 0;
overflow: hidden;
}
DEMO: http://jsfiddle.net/StathisG/hqg29p6r/1/

Jquery, slideup() but do not remove element

I've got an app that looks like a Windows desktop. There are icons that open draggable windows (divs) which display the content.
When I close a window, this happens:
$('#element'+boxId).animate({height: 0, opacity: 0}, 'fast');
When I open a window, this happens
$('#element'+boxId).slideDown();
Problem is, once a window is closed, I cannot reopen it. If I want to see that window again I have to refresh the page and then open it.
Is there some way to do a cool fade out that does not completely remove the element?
I have also tried regular old slideUp() but that does the same thing.
This works fine, just not as cool looking.
document.getElementById('element'+boxId).style.display = "none";

The problem is that you are hiding it by affecting the height and opacity, and those aren't being reset by the slideDown. Here's one option:
http://jsfiddle.net/uggVb/
$('#hide').click(function (e) {
e.preventDefault();
var $div = $('#theDiv');
$div.data('originalHeight', $div.css('height'));
$('#theDiv').animate({
height: 0,
opacity: 0
}, 'fast');
//$('#theDiv').slideUp('fast');
});
$('#show').click(function (e) {
e.preventDefault();
$('#theDiv').animate({
height: $('#theDiv').data('originalHeight'),
opacity: 1
}, 'fast');
//$('#theDiv').slideDown('fast');
});
You could use the slide functions instead of the animate functions, either work.

How about only using jQuery to add and remove a hide class and use CSS transitions for the properties you want to animate?
jQuery:
$('#whatever').click(function(ev) {
var $el = $('#element' + boxId);
$el.toggleClass('hide');
});
CSS:
#element { /* or #element{{boxId}} or some class added to those elements */
opacity: 1;
overflow: hidden;
width: 100px; height: 100px;
transition: height 300ms, opacity 300ms;
}
#element.hide {
opacity: 0;
height: 0;
}
See demo

Not sure if it is what you want but you can look into jQuery hide/show functions
$('#element'+boxId).hide();
if you want slower/faster animation you can give hide parameter which represents animation speed(in miliseconds)
$('#element'+boxId).hide(1000);

Possible to toggle/animate between two sizes using jQuery?

Basically I have a small div that is initially styled to 60x60. I have created click event that animates the expansion of the div:
$("#myDiv").click(function () {
$(this).animate(
{
width: "350px",
height: "300px"
}, 500);
}
I would like to reverse this animation if someone clicks the div again. Is there anyway to toggle between the original size and the expanded size (still using the animate function) with each click?
I found the toggleClass function but I don't think this will work with animiate.
You can see a basic fiddle here: http://jsfiddle.net/NS9Qp/

$("#myDiv").toggle(function() {
$(this).stop().animate({
width: "350px",
height: "300px"
}, 500);
}, function() {
$(this).stop().animate({
width: "60px",
height: "60px"
}, 500);
});
Example.
The jQuery toggle() function allows you to define two or more functions to cycle through on each mouse click. In this case, the first one (triggered on the first click) expands the div and the second one (triggered on the second click) resets it. On the third click, it starts back at the first one, and so on.
More about toggle() here.

just to be different :
var size=[];
$("#cornerBox").click(function(){
$(this).width() >= 350 ? size=[60, 60] : size=[350, 300];
$(this).stop().animate({ width: size[0], height: size[1] },500);
});
Fiddle: http://jsfiddle.net/NS9Qp/1/

I ended up using jQuery UI's animated toggleClass effect: http://jqueryui.com/demos/toggleClass/
super simple code:
$('h2').click(function() {
$(this).next().toggleClass("hidden", 1000);
});

Do not hardcode css styles (in my example I used inline css for myDiv element, put this in css files).
<div id="myDiv" style="background:red; width: 60px; height: 60px;"></div>
<script type="text/javascript">
var div = $('#myDiv');
div
.attr('defWidth', div.width())
.attr('defHeight', div.height())
.toggle(function() {
$(this).stop().animate({width: "350px", height: "300px"}, 500);
}, function() {
$(this).stop().animate({width: $(this).attr('defWidth'), height: $(this).attr('defHeight')}, 500);
}
);
</script>

What I do for cases like this, is store a transformation array.
var transforms = { 'height0': 60, 'width0': 60, 'height1': 300, 'width1': 350};
Then, store a toggle between 0 or 1, and use the corresponding values for the animation.
EDIT: combine this with the previous example of toggle, and you've got yourself a solid working solution!

jQuery rebind function

I want to have a div that animates the currently active image out of the view and instead animates in another image. There are several of these divs, and each one should have the same basic functionality but linked to different images. The problem I'm having is that you can click many of the divs before the animation is complete, which fires the other animations at the same time. My goal is to only be able to fire one animation at a time, and when the animation finishes you're able to fire the next animation. I've tried using unbind which works OK but then I'd have to rebind it later and I don't know how to do this. I'm really a jQuery noob so I would greatly apreciate an answer. Thanks!
My code:
$('.div1').click(function clickevent() {
$('.img2, .img3').animate({
opacity: 0.1,
left: 600
}, 1000, function() {
$('.img1').animate({
opacity: 1,
left: 0
}, 500, function() {
$('.div2, .div3').bind('click', clickevent); /* Here I want to rebind the function */
});
});
$(this).addClass("active");
$('.div2, div3').removeClass("active");
$('div2, .div3').unbind('click', clickevent);
});
I have two other codeblocks for .div2 and .div3 which look the same but with different classes in different places. Is there any way to make the images finish their animation before being able to animate again? Thanks.

Is this what you need:
var canAnimate = true;
$('.div1').click(function clickevent() {
// these 4 lines have to be in all code blocks (ie. for .div2 and .div3)
if (! canAnimate) {
return;
}
canAnimate = false;
$('.img2, .img3').animate({
opacity: 0.1,
left: 600
}, 1000, function() {
$('.img1').animate({
opacity: 1,
left: 0
}, 500, function() {
canAnimate = true; // this should also be included for .div2 and .div3 code blocks
});
});
$(this).addClass("active");
$('.div2, div3').removeClass("active");
});

I think queue() will append the animations but not stop them, so if you click 10 times on the images, the click handler will animate it 10 times but one after another. I guess you want only animate the images when no image is currenty animated so you can use:
$('.div1').click(function clickevent() {
// When no image is currently animated then perform the animation
if($j('.img1, .img2, .img3').is(':animated') == false)
{
$('.img2, .img3').animate({
opacity: 0.1,
left: 600
}, 1000, function() {
$('.img1').animate({
opacity: 1,
left: 0
}, 500);
});
$(this).addClass("active");
$('.div2, div3').removeClass("active");
} else {
// There is currently an animation runnig, do nothing
}
});
See this for more information: http://api.jquery.com/animated-selector/
You should also get some information about caching of selection results.