I am using zepto library for my mobile web site. I have recently learnt that zepto does not have slideDown() plugin like jquery. I would like to implement the same for zepto.
I have tried one on jsfiddle (http://jsfiddle.net/goje87/keHMp/1/). Here it does not animate while showing the element. It just flashes down. How do I bring in the animation?
PS: I cannot provide a fixed height because I would be applying this plugin to the elements whose height property would not be known.
Thanks in advace!!
Demo: http://jsfiddle.net/6zkSX/5
JavaScript:
(function ($) {
$.fn.slideDown = function (duration) {
// get old position to restore it then
var position = this.css('position');
// show element if it is hidden (it is needed if display is none)
this.show();
// place it so it displays as usually but hidden
this.css({
position: 'absolute',
visibility: 'hidden'
});
// get naturally height
var height = this.height();
// set initial css for animation
this.css({
position: position,
visibility: 'visible',
overflow: 'hidden',
height: 0
});
// animate to gotten height
this.animate({
height: height
}, duration);
};
})(Zepto);
$(function () {
$('.slide-trigger').on('click', function () {
$('.slide').slideDown(2000);
});
});
This worked for me:
https://github.com/Ilycite/zepto-slide-transition
The Zepto Slide Transition plugin add to Zepto.js the functions bellow :
slideDown();
slideUp();
slideToggle();
Speransky's answer was helpful, and I'm offering a simplified alternative for a common drop-down navigation list, and separated into slideUp and slideDown on jsfiddle: http://jsfiddle.net/kUG3U/1/
$.fn.slideDown = function (duration) {
// show element if it is hidden (it is needed if display is none)
this.show();
// get naturally height
var height = this.height();
// set initial css for animation
this.css({
height: 0
});
// animate to gotten height
this.animate({
height: height
}, duration);
};
This would work for what you need:
https://github.com/NinjaBCN/zepto-slide-transition
Related
I am trying to have a div change its properties on a click function. Some of the properties I am changing with a call to toggleClass() which is fine and works great. However I also want to resize the div based on the size of the viewport. In order to have access to those numbers I am changing the width and height with jQuery. This command looks like this:
$('.box').click( function() {
$(this).toggleClass('box--grow', 0);
$(this).css('width', w * .9);
$(this).css('height', h * .9);
});
EDIT I want the height and width to go back to 100%.
I tried using the toggle class but that caused the entire div to disappear, and this solution doesn't work because when I click the div again the class is removed but the height is the same.
I am looking for a way to toggle this or to get the viewport width within the css. I tried both approaches but couldn't get anything to what I am looking for.
why not using CSS VH and VW values?
CSS:
.my90Class{
width: 90vw;
height: 90vh;
}
JS:
$('.box').click( function() {
$(this).toggleClass("my90Class");
});
You need to get the window size first, and then put everything into combined .ready() and .resize() functions, to make it responsive.
function myfunction() {
var w = $(window).width();
var h = $(window).height();
$('.box').click(function () {
if ($(this).hasClass('box--grow')) {
$(this).removeClass('box--grow');
$(this).css({
'width': '',
'height': ''
});
} else {
$(this).addClass('box--grow');
$(this).css({
'width': w * .9,
'height': h * .9
});
}
});
}
$(document).ready(myfunction);
$(window).on('resize', myfunction);
jsfiddle
You can check for the class with:
$(this).hasClass('box--grow')
Then to remove the class:
$(this).removeClass('box--grow');
And to add it back again:
$(this).addClass('box--grow');
The end would look like this save the original width and height before the event so you can add it back again:
var oldwidth = $('.box').css('width');
var oldheight = $('.box').css('height');
$('.box').click( function() {
if($(this).hasClass('box--grow')) {
$(this).removeClass('box--grow');
$('.box').css('width', oldwidth);
$('.box').css('height', oldheight);
} else {
$(this).addClass('box--grow');
}
});
untested but it would probably work
I am using parallax.js to animate a series of elements on a homepage. I searched for code that would allow me to add a simple "slider" effect to the elements as well.
Everything seems to be working properly, except that after the first li, the parallax effect only works horizontally. On li #1, the element hovers as expected, following the mouse in every direction.
Here's a link to jsfiddle: http://jsfiddle.net/sdeviva/t6uwq/1/
Here's a link to the revised jsfiddle: http://jsfiddle.net/sdeviva/t6uwq/5/
var scene = document.getElementById('scene');
var parallax = new Parallax(scene);
var scene = document.getElementById('scene2');
var parallax = new Parallax(scene2);
(function($) {
$.fn.ezslide = function ( options ) {
var defaults = {
fadeIn : 1000,
fadeOut : 1000,
delay : 500
},
settings = $.extend( defaults, options ),
$this = this,
cur = 0,
fadeIt = function( which ) {
var li = $this.find('li');
cur = which = (which >= li.length) ? 0 : which;
li.fadeOut( settings.fadeOut );
li.eq( which )
.delay( settings.fadeOut )
.fadeIn( settings.fadeIn, function(){
setTimeout(function() {
cur++;
fadeIt( cur );
}, settings.delay);
});
};
fadeIt( cur );
};
$('ul.scene').ezslide({
fadeIn : 600,
fadeOut : 600,
delay : 3000
});
})(jQuery);
EDIT: I sort of fixed this. I don't really know what I'm doing, so there's probably a cleaner way. But, I realized that the parallax effect was only being applied once to the first list item. The script that makes each item fade in wasn't getting the benefit of the parallax.js script.
SO - I put each fading element into its own ul, with a unique id, and a shared class. By some miracle, this actually works. But let me know if there's a better way.
This is an interesting one. The issue is that the parallax code sets the very first layer to position: relative and all others to position: absolute. This has the effect of making the parent ul have the dimensions of only the first layer. This is normally fine, except that when you display any element other than the first, the first is hidden. This causes the ul to have 0 height. The parallax depends on the height of the scene, as a result no height means no vertical movement.
You can fix the issue by applying a fixed height to your ul:
#scene{
height: 128px;
}
http://jsfiddle.net/t6uwq/7/
You can find greater detail on the motion calculation in the documentation on github.
I have three divs and i am trying to show/hide div2 when we click on any div. So far i have succeeded in it but now i want to implement some animation while show.hide the div.
I tried a lot and read many solution but due to i am new to jQuery i cant do it. Here is my code that i tried before animation
http://jsfiddle.net/9Lw6T/119/
$(".more , .expander,.headingopen").click(function() {
var expanderDiv = $(this).parents(".content_item").find(".textContent");
if ($(expanderDiv).length > 0 && $(expanderDiv).hasClass("expander") ) {
$(expanderDiv).removeClass("expander");
var MoreDiv = $(this).parents(".content_item").find(".more");
$(MoreDiv).html("Mindre");
}
else {
console.log("addclass");
$(expanderDiv).addClass("expander new");
var MoreDiv = $(this).parents(".content_item").find(".more");
$(MoreDiv).html("More");
}
});
jQuery(document).ready(function() {
jQuery(".more , .expander,.headingopen").click(function() {
jQuery('.expander').slideToggle("slow");
});
});
After Animation or slidetoggle
http://jsfiddle.net/9Lw6T/123/
Is there any way to animate the divs and stop at certain height while slideup as before animation i have done it in my first try without animate. Slidedown needs auto hide and its working with this code.
Thanks
There is an issue when using jQuery animate going to auto so you have to do a little work around (see: JavaScript jQuery Animate to Auto Height)
// get the current height
var curHeight = $textArea.height();
// set set the css to auto height and get how tall it is
var autoHeight = $textArea.css('height', 'auto').height();
// set the css back to the original height, then animate to the new height
$textArea.height(curHeight).animate({height: autoHeight}, 1000);
Here it is all together
http://jsfiddle.net/9Lw6T/127/
I've create an affect that runs when a row of icons are visible on screen.
The animation is essentially changing the padding of a div, giving the effect of a pulse from the icons.
It works perfectly in every browser except Chrome (surprisingly!). Chrome for some reason wobbles the text under each icon while it animates. I used padding in the hopes that it would only affect the content within the div (using the box-sizing: border-box model).
I did write a fix for it which works in Chrome but then breaks the layout in Safari.
So I'm not sure if I can fix the wobble in Chrome or if I can alter my fix to help Safari out.
Here's the link to the page as it is at the moment, without the jQuery fix. It's in the JS file but commented out.
Here's the code that runs the animation, the fix is in here, just commented out:
$('.wrapper').scroll(function(e) {
var tTop = target.offset().top;
var tTopOffset = tTop+target.height();
if( tTop < height ) {
if (flag) {
targetDiv.animate({
opacity: 1
}, 500);
targetDiv.each(function(i){
// FIX breaks on safari, but fixes issue in Chrome...
// targetDiv.css('height', targetDivHeight);
$(this).delay((i++) * 900).animate({
padding: '0em'
}, 400);
$(this).animate({
padding: '0.5em'
}, 400);
});
flag = false
}
} else {
targetDiv.css('opacity', '0');
flag = true;
}
});
I think it is because you didn't specified the width and height of the element you are trying to animate. border-box doesn't just ignore padding value, it needs width and height value that includes padding and border. Using transform:scale could be nice either as commented above, but IMHO it is a bit tricky to achieve with .animate() and has less browser support.
Try this in console and try modify your code. I tried and it works well in the latest Safari and Chrome. (should use .outerHeight() to get correct value, since you use padding value to animate)
$ = jQuery;
var targetDiv = $('.icon-img-div');
var targetDivHeight = $('.icon-img-div').outerHeight();
var targetDivWidth = $('.icon-img-div').outerWidth();
targetDiv.each(function (i) {
// this breaks on safari, but fixes issue in Chrome...
targetDiv.css({
height: targetDivHeight,
width: targetDivWidth
});
$(this).delay((i++) * 900).animate({
padding: '0em'
}, 400);
$(this).animate({
padding: '0.5em'
}, 400);
});
i have a little issue animeting a div that is overflowed, the scroll blink during animation.
i made a fast example:
$(".div-animate").on("click", function(e){
var toTop = 100,
toHeight = $(this).outerWidth(true) + toTop;
$(this).animate({
top: toTop,
height: toHeight
});
});
live example
how can i prevent this little 'scroll blink' ?
jQuery adds an overflow:hidden rule when use animate function.
There are two hacks you can do:
1) Modify the line of the jQuery source where overflow is setted to hidden (you can do this only if you import jquery from your site)
2) Force the property in your css doing something like this
.div-animate {
overflow: auto !important;
}
Well this can be done this way too:
$(this).animate({
top: toTop,
height: toHeight
}).css({"overflow":"auto"});