Develop Reference

jQuery show hide sliding panel from left side

I want a panel to slide from left edge of browser when clicking a button and hide the panel when clicking the same button (toggle).
Html
<div class="panel">
</div>
»
CSS
.panel {
width:300px;
float:left;
height:550px;
background:#d9dada;
position:relative;
left:-300px;
}
.slider-arrow {
padding:5px;
width:10px;
float:left;
background:#d9dada;
font:400 12px Arial, Helvetica, sans-serif;
color:#000;
text-decoration:none;
position:relative;
left:-300px;
}
jquery
$(function(){
$('.slider-arrow.show').click(function(){
$( ".slider-arrow, .panel" ).animate({
left: "+=300"
}, 700, function() {
// Animation complete.
});
$(this).html('«').removeClass('show').addClass('hide');
});
$('.slider-arrow.hide').click(function(){
$( ".slider-arrow, .panel" ).animate({
left: "-=300"
}, 700, function() {
// Animation complete.
});
$(this).html('»').removeClass('hide').addClass('show');
});
});
It is showing the panel but not hiding the panel. Any problem with the selectors used?
http://jsfiddle.net/Paramasivan/eHded/1/

As others have said with jQuery once the document is initialized its only looking for elements that initially existed. For that reason your .show function was being run every time.
Instead of looking for a click event on .slider-arrow.show you can just look at .slider-arrow and then check for the classes once it has been clicked like in this example.
$(function(){
$('.slider-arrow').click(function(){
if($(this).hasClass('show')){
$( ".slider-arrow, .panel" ).animate({
left: "+=300"
}, 700, function() {
// Animation complete.
});
$(this).html('«').removeClass('show').addClass('hide');
}
else {
$( ".slider-arrow, .panel" ).animate({
left: "-=300"
}, 700, function() {
// Animation complete.
});
$(this).html('»').removeClass('hide').addClass('show');
}
});
});
http://jsfiddle.net/eHded/4/

Since you are using jQuery to manipulate the "show" and "hide" after the DOM has loaded, jQuery doesn't know those elements exist.
Event handlers are bound only to the currently selected elements; they must exist on the page at the time your code makes the call...
I suggest using jQuery's on() in order to delegate events and select dynamically generated classes, like so:
$(document).on('click','.slider-arrow.show',function(){
....
});
$(document).on('click','.slider-arrow.hide',function(){
....
});
http://jsfiddle.net/eHded/2/

I think you can manage the action choosing from the active anchor class like this:
$(function(){
$('.slider-arrow').click(function(){
var anchor = this;
var removeClass = "show";
var addClass = "hide";
var diff = "+=300";
var arrows = "«";
if($(anchor).hasClass("hide")){
diff = "-=300";
removeClass = "hide";
addClass="show";
arrows = '»';
}
$( ".slider-arrow, .panel" ).animate({
left: diff
}, 700, function() {
// Animation complete.
$(anchor).html(arrows).removeClass(removeClass).addClass(addClass);
});
});
});
So you've got only one animation function.
Here is the updated fiddle: http://jsfiddle.net/eHded/5/

You should try using .slideToggle(), put inside a .click(function(){/*in here*/}).

When you write $('.slider-arrow.hide').click(func....., that binds the click event at the time that code is first ran (probably when the document is ready). If you change the DOM later on (ie. add the .hide class) you need to re-bind the click event.
You need to use jQuery's .on() method instead (http://api.jquery.com/on/).
$(document).on('click', '.slider-arrow.show', function() { /*.......*/ });
$(document).on('click', '.slider-arrow.hide', function() { /*.......*/ });
A better alternative altogether however would be to use CSS3 transitions and jQuery's .toggleClass()
.panel {
left: -300px;
transition: left 1s;
/* other styles... */
}
.panel.expand {
left: 0;
}
$('.slider-arrow').click(function() {
$('.panel').toggleClass('expand');
}

For this task I use SlideReveal jQuery plugin.
After you include the library the setup is as easy as:
<div id='slider'>Hello World!!</div>
<button id='trigger'>Trigger</button>
<script>
$('#slider').slideReveal({
trigger: $("#trigger")
});
</script>
Please refer to documentation for more details and live samples.

JQuery mouseenter() and mouseleave()

So I have got this demo navigation, which has a small button on the side and when you hover the button, it slides the menu into the window. though I have got the hover working, but now when the mouse leaves, it's still open. how to fix this? I'm pretty new to jQuery by the way
here's the html:
<div id="demoNav">
<button class="open"></button>
<ul>
<li>Home Pagina</li>
<li>Product Pagina</li>
<li>Bestel Pagina</li>
</ul>
</div>
And my jQuery:
$("#demoNav").mouseenter(function(){
$("#demoNav").animate({marginLeft:'0px'}, 500)
});
If you need more info, just tell me, I'll provide more codes.

Try this:
$("#demoNav").hover(
function () {
$(this).animate({
marginLeft: '0px'
}, 500)
},
function () {
$(this).animate({
marginLeft: '50px'
}, 500)
});

You haven't actually told it to hide again.
That said, I'd like to suggest this CSS alternative:
#demoNav {
transition:margin-left 0.5s ease;
-webkit-transition:margin-left 0.5s ease;
}
#demoNav:hover {
margin-left:0;
}

Add a mouseleave event -
$('#demoNav').mouseleave(function(){
$("#demoNav").animate({marginLeft:'50px'}, 500)
});

Use jQuery:
$("#demoNav").hover(function(){
// do something when mouse hover
},function(){
//do some thing when mouseout
});

you coded for mouseenter but forgot to code for mouseleave event
add these lines in jQuery
$("#demoNav").mouseleave(function(){
$("#demoNav").animate({'marginLeft':'50px'}, 500)
});
working example here:
http://jsfiddle.net/EP6wR/
but i will suggest use hover method which is cleaner
syntax: $(selector).hover(handlerIn, handlerOut)

might be this solution works
$('#demoNav .open').on("mouseenter", function(){ $(this).parent().animate({marginLeft:'0px'}, 500); });
$('#demoNav').on("mouseleave", function(){ $(this).animate({marginLeft:'50px'}, 500); });
this will activate the pane on hover of button, but when you leave the div, it'll act again making a left move

Toggle CSS style on click

Scratching my head over this for a while now I will lose hair soon.
I have a site here:
http://ve.jago-staging.com/ I am trying to figure out how I can alter the code below so that when I click on featured posts the transition occurs same way, instead of just the round click links.
I've seen examples where I click on the element itself and it change style but not externally controlled.
round click still need to work
Thanks for the help
(function($) {
$(document).ready( function() {
$('.feature-slider a').click(function(e) {
$('.featured-posts section.featured-post').css({
opacity: 0,
visibility: 'hidden'
});
$(this.hash).css({
opacity: 1,
visibility: 'visible'
});
$('.feature-slider a').removeClass('active');
$(this).addClass('active');
e.preventDefault();
});
});
})(jQuery);

Do this:
$(document).ready( function() {
$('.feature-slider a').click(function(e) {
$('.featured-posts section.featured-post').toggleClass('your-extra-css');
});
});
And add the css stuff in your css:
.your-extra-css {
visibility:visible;
}

Javascript Div rollovers

I am using Jquery - is there a simple way to change the background color on a div when a user rolls over it?

You can do this with CSS:
#myDiv:hover { background-color: red; }
//or...
div:hover { background-color: red; }
If you need IE6 support and such and have to use jQuery, toggle a class, like this:
.hover { background-color: red; }
Then use .hover() and .toggleClass(), like this:
$(".myDivs").hover(function() {
$(this).toggleClass('hover');
});

You could use the .hover() event:
$('#divid').hover(function() {
// mouse enter
$(this).css('background-color', 'red');
}, function() {
// mouse leave
$(this).css('background-color', 'blue');
});

I think mouseenter & mouseleave is better than hover. Why? Bubbling reason ;)
if($.browser.msie && $.browser.version < 7) {
$('element').bind({
mouseenter:function(){ $(this).addClass('over'); },
mouseleave:function(){ $(this).removeClass('over');}
});
}
After this, you can simply add some CSS magic:
#element.over,
#element:hover {
/* do something */
}

I've got a problem with a toggling sidebar using jQuery

I'm trying to create a simple toggling sidebar using jquery, where it expands and contracts when a button is pressed. The button also changes to another type of button when pressed. The sidebar will expand, but for some reason, it will not move back to it's original position.
You can see a copy of the javascript and html at http://www.jqueryhelp.com/viewtopic.php?p=4241#4241
Here is the working code, thanks Bendeway! :D
$(".btn-slide").live('click', function(e){
e.preventDefault();
$("#sidebar").animate({opacity: "show", left: 250}, "slow");
$(this).toggleClass("btn-slide").toggleClass("active");
});
$(".active").live('click', function(e){
e.preventDefault();
$("#sidebar").animate({opacity: "hide", left: 100}, "slow");
$(this).toggleClass("btn-slide").toggleClass("active");
});

try instead of right use left with a negative number. in addition I would recommend using preventDefault instead of returning false.
$(".active").click(function(e){
e.preventDefault();
$("#sidebar").animate({opacity: "hide", left: -250}, "slow");
$(this).toggleClass("btn-slide");
});
Update
Another piece i just noticed is that your attaching a click event to the .active button, when the document is ready, but there is no .active button when the document is ready that comes in after you change it. There are a couple options here.
First is to use the new live feature of jquery 1.3
$(".btn-slide").live('click', function(e){
e.preventDefault();
$("#sidebar").animate({opacity: "hide", left: 250}, "slow");
$(this).toggleClass("btn-slide").toggleClass("active");
});
$(".active").live('click', function(e){
e.preventDefault();
$("#sidebar").animate({opacity: "hide", left: -250}, "slow");
$(this).toggleClass("btn-slide").toggleClass("active");
});
The other option would be to have set the click event on a different modifier (eg. on the id, maybe).
<span>News <img src="img/overlay.png" id="sliderButton" class="btn-slide" alt="" /></span>
then use this to handle the click
$("#sliderButton").click(function(e){
e.preventDefault();
$(this).is('.btn-slide').each(function() {
$("#sidebar").animate({opacity: "show", left: 250}, "slow");
});
$(this).is('.active').each(function() {
$("#sidebar").animate({opacity: "hide", left: -250}, "slow");
});
$(this).toggleClass("active").toggleClass('btn-slide');
});
or even more concise
$("#sliderButton").click(function(e){
e.preventDefault();
var animationSettings = {opacity: "show", left: 250};
if ($(this).hasClass('active') )
{
animationSettings = {opacity: "hide", left: -250};
}
$("#sidebar").animate(animationSettings , "slow");
$(this).toggleClass("active").toggleClass('btn-slide');
});
The final option that I can think of would be to set the click events after you change them, but I wouldn't do that so I'm not going to supply a sample.
Lastly, I would put in alert into your active callback and make sure that your active button event is actually firing.

The way your logic is written, I think you need to do a 'toggleClass' on both classes inside your click handlers which will add one and remove the other. For example, when your "active" item is clicked you toggle (add) the btn-slide class, but this will leave the "active" class in place too.
Of course instead of using "toggleClass" you could also use "addClass" and "removeClass" to be more explicit.
I recommend using a tool like Firebug to watch what's happening inside your DOM.
$(document).ready(function(){
$(".btn-slide").click(function(){
$("#sidebar").animate({opacity: "show", left: "250"}, "slow");
$(this).toggleClass("active"); // add class
$(this).toggleClass("btn-slide"); // remove class
return false;
});
});
$(document).ready(function(){
$(".active").click(function(){
$("#sidebar").animate({opacity: "hide", right: "250"}, "slow");
$(this).toggleClass("active"); // remove class
$(this).toggleClass("btn-slide"); // add class
return false;
});
});

This works.
$(document).ready(function(){
$(".btn-slide").click(function(){
$("#sidebar").slideToggle("slow");
$(this).toggleClass("active"); return false;
});
});

$(function() {
var ecswitch = 1;
/* prevent the annoying scroll back up thing */
$("#ec").click(function(e) {
e.preventDefault();
var x = $("#main").width(); // get element width
var y = $("#main").height(); // get element height
if (ecswitch == 1) {
$("#main").animate({
opacity: 0,
hieght: "0",
width: "0"
}, 1300);
ecswitch = 0;
} else {
$("#main").animate({
opacity: 1,
hieght: y,
width: x
}, 1300);
ecswitch = 1;
}
});
});
#main {
height: 200px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="content">
Expand / Contract
<div id="main">
Watch Me Shrink Or Grow
</div>
</div>
I chose to do this a little differently. this initializes with the height of our experiment being 200px and the width is automatic. When you click the hyperlink the experiment is hidden in 1.3 seconds and a switch is set to 0. when you click again it comes back over a period of 1.3 seconds and the switch gets set back to 1. like a light switch. I used the animate here because a simple fade or hide got me bored...
The reason why I got the widths and heights of the element before zero-ing them was if said width:100%" and height: "100%" in my animate it would set it to 100% of the page's width and height...we don't want that.
NOTE: I am also using the opacity over a time period. quite nice for fading as well :)