We Keep Coding

Set class to selected <li> tag dynamically

I was having some troubles when trying to set the on click listerner for <li> dynamically. Here is my code to populate the list:
for(var i = 0; i < chatlist.length; i++){
$('<li class="contact"><div class="wrap"><div class="meta"><p class="name">' + contact + '</p><p class="preview">' + preview + '</p></div></div></li>').appendTo($('#contacts ul'));
}
On click listener for selected row:
$('#contacts').on('click', 'li', function() {
var index = $(this).index();
console.log(index);
});
I am using this template. Upon selecting row, I wanted to set the selected <li> tag to
<li class = 'contact active'></li>
I managed to get the selected row index but I not sure how to set the HTML class for selected <li>. Any idea?

I managed to get the selected row index but I not sure how to set the
HTML class for selected <li>. Any idea?
You can just addClass on the click event itself
$('#contacts').on('click', 'li', function() {
$( "#contacts li" ).removeClass( "active" ); //assuming that it has to be removed from other li's, else remove this line
$( this ).addClass( "active" );
});

try this code which add active class and also i add css to check different
$(document).ready(function(){
$('.list li').click(function() {
$( '.list li' ).removeClass( "active" ); // remove active class from all li
$(this).addClass('active'); // add active class for click li
});
});
.active {
color:red;
}
li {
cursor: pointer;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul class="list">
<li>Test 1</li>
<li>Test 2</li>
<li>Test 3</li>
<li>Test 4</li>
<li>Test 5</li>
<li>Test 6 </li>
<li>Test 7</li>
</ul>

In the click event handler, $(this) will point to the li element which was clicked. So you should be able to assign a class to it like this:
$('#contacts').on('click', 'li', function() {
$(this).addClass("selected"); // Assign the class here
var index = $(this).index();
console.log(index);
});

You can add your jquery logic in such a way that will remove the active class from all li inside contacts id and then add the active class to the li that has been clicked which you can get from the index of the li like:
var clickedLi = $('#contacts ul li')[index];
or use $(this) instead. Please check the attached snippet.
var chatlist = new Array(3);
var contact = 'contact';
var preview = 'preview';
for(var i = 0; i < chatlist.length; i++){
$('<li class="contact"><div class="wrap"><div class="meta"><p class="name">' + contact + '</p><p class="preview">' + preview + '</p></div></div></li>').appendTo($('#contacts ul'));
}
$('#contacts').on('click', 'li', function() {
var index = $(this).index();
$('#contacts ul li').each(function(){
$(this).removeClass('active');
});
$(this).addClass('active');
});
.active{
color: green;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="contacts">
<ul>
</ul>
</div>

You can add active class like this :
$(this).addClass('active');

jQuery save sortable list

I've used this jQuery example: http://jqueryui.com/sortable/#connect-lists-through-tabs
<script>
$(document).ready(function() {
$(function() {
$( ".connectedSortable" ).sortable().disableSelection();
var $tabs = $( "#tabs" ).tabs();
var $tab_items = $( "ul:first li", $tabs ).droppable({
accept: ".connectedSortable li",
hoverClass: "ui-state-hover",
drop: function( event, ui ) {
var $item = $( this );
var $list = $( $item.find( "a" ).attr( "href" ) )
.find( ".connectedSortable" );
ui.draggable.hide( "slow", function() {
$tabs.tabs( "option", "active", $tab_items.index( $item ) );
$( this ).appendTo( $list ).show( "slow" );
});
}
});
});
});
</script>
The html:
<div id="tabs">
<ul>
<li>Category1</li>
<li>Category2</li>
</ul>
<div id="Category1">
<ul id="sortable-Category1" class="connectedSortable ui-helper-reset">
<li class="ui-state-default">Forum 1</li>
<li class="ui-state-default">Forum 2</li>
</ul>
</div>
<div id="Category2">
<ul id="sortable-Category2" class="connectedSortable ui-helper-reset">
<li class="ui-state-default">Forum 3</li>
<li class="ui-state-default">Forum 4</li>
</ul>
</div
But now I'd like that when I change something in the list when I reordered an item.
I know how to write the changes to the database via AJAX etc, but what method is called when something in the list is dragdropped + how do I implement this in the existing javascript above?
And is there a way that I can get the order of the list in the format '[id-of-the-li-item]-[number in the list]' so that I can use a field in the database named 'order' where the order of the items is specified?
What I want to achieve with this is: I've a forum with Categories & forums. I want to use the code above to order the forums / categories (order of forums in a category and moving forums to other categories)

$( ".connectedSortable" ).sortable({
update: function (event, ui) {
var newSeq = [], p = ui.item.parent(), parentId = p.parent().prop('nodeName') === "LI" ? p.parent().attr('id') : 0;
ui.item.parent().children().each(function () {
newSeq.push(this.id);
});
// here you have newSeq... now update it via ajax
}
});
This relies on element's ID. There will be ids in newSeq[]

how to set active class to nav menu from twitter bootstrap

I'm new to the twitter bootstrap. Using there navigation menus . I'm trying to set active class to selected menu.
my menu is -
<div class="nav-collapse">
<ul class="nav">
<li id="home" class="active">Home</li>
<li>Project</li>
<li>Customer</li>
<li>Staff</li>
<li id="broker">Broker</li>
<li>Sale</li>
</ul>
</div>
I tried following thing after googling on this that i have to set active class on each page from menu like as--
<script>
$(document).ready(function () {
$('#home').addClass('active');
});
</script>
but problem for above is that i set home menu selected by default. Then it always get selected. Is there any other way to do this ? , or which i can generalize and keep my js in layout file itself?
After executing application my menu looks -
after clicking on other menu item i get following result-
And i added following scripts on Index view and Broker view ---
<script>
$(document).ready(function () {
$('#home').addClass('active');
});
</script>
<script>
$(document).ready(function () {
$('#broker').addClass('active');
});
</script>
respectively.

You can use this JavaScript\jQuery code:
// Sets active link in Bootstrap menu
// Add this code in a central place used\shared by all pages
// like your _Layout.cshtml in ASP.NET MVC for example
$('a[href="' + this.location.pathname + '"]').parents('li,ul').addClass('active');
It'll set the <a>'s parent <li> and the <li>'s parent <ul> as active.
A simple solution that works!
Original source:
Bootstrap add active class to li

it is a workaround. try
<div class="nav-collapse">
<ul class="nav">
<li id="home" class="active">Home</li>
<li>Project</li>
<li>Customer</li>
<li>Staff</li>
<li id="demo">Broker</li>
<li id='sale'>Sale</li>
</ul>
</div>
and on each page js add
$(document).ready(function () {
$(".nav li").removeClass("active");//this will remove the active class from
//previously active menu item
$('#home').addClass('active');
//for demo
//$('#demo').addClass('active');
//for sale
//$('#sale').addClass('active');
});

I had the same problem... solved it by adding the code shown below to the Into "$(document).ready" part of my "functions.js" file which is included in every page footer. It's pretty simple. It gets the full current URL of the displayed page and compares it to the full anchor href URL. If they are the same, set anchor (li) parent as active. And do this only if anchor href value is not "#", then the bootstrap will solve it.
$(document).ready(function () {
$(function(){
var current_page_URL = location.href;
$( "a" ).each(function() {
if ($(this).attr("href") !== "#") {
var target_URL = $(this).prop("href");
if (target_URL == current_page_URL) {
$('nav a').parents('li, ul').removeClass('active');
$(this).parent('li').addClass('active');
return false;
}
}
}); }); });

For single-page sites where the menu items simply jump down to other sections of the page, this simple solution works for me:
$('.nav li').on('click', function(){
$('.nav li').removeClass('active');
$(this).addClass('active');
});

You could add a diffrent class onto the BODY tag on each page e.g. on the homepage you could have this:
<body class="nav-1-on">
Then this css:
.nav-1-on .nav-1 a, .nav-2-on .nav-2 a, .nav-3-on .nav-3 a, .nav-4-on .nav-4 a {
// set your styles here
}
The NAV element:
<ul>
<li class="nav-1">Home</li>
<li class="nav-2">Services</li>
<li class="nav-3">About</li>
<li class="nav-4">Contact</li>
</ul>
#
Alternatively you could place a class on the BODY on each page and then grab that via jQuery and add the .active class to the correct nav item based on that tag.

<div class="nav-collapse">
<ul class="nav">
<li class="home">Home</li>
<li class="Project">Project</li>
<li class="Customer">Customer</li>
<li class="Staff">Staff</li>
<li class="Broker">Broker</li>
<li class="Sale">Sale</li>
</ul>
</div>
then for each page you add this:
//home
$(document).ready(function () {
$('.home').addClass('active');
});
//Project page
$(document).ready(function () {
$('.Project').addClass('active');
});
//Customer page
$(document).ready(function () {
$('.Customer').addClass('active');
});
//staff page
$(document).ready(function () {
$('.Staff').addClass('active');
});

<div class="nav-collapse">
<ul class="nav">
<li class="home">Home</li>
<li class="Project">Project</li>
<li class="Customer">Customer</li>
<li class="Staff">Staff</li>
<li class="Broker">Broker</li>
<li class="Sale">Sale</li>
</ul>
</div>
$('ul.nav>li.home>a').click(); // first. same to all the other options changing the li class name

For single page sites, the following is what I used. It not only sets the active element based on what's been clicked but it also checks for a hash value within the URL location on initial page load.
$(document).ready(function () {
var removeActive = function() {
$( "nav a" ).parents( "li, ul" ).removeClass("active");
};
$( ".nav li" ).click(function() {
removeActive();
$(this).addClass( "active" );
});
removeActive();
$( "a[href='" + location.hash + "']" ).parent( "li" ).addClass( "active" );
});

For those using Codeigniter, add this below your sidebar menu,
<script>
$(document).ready(function () {
$(".nav li").removeClass("active");
var currentUrl = "<?php echo current_url(); ?>";
$('a[href="' + currentUrl + '"]').parents('li,ul').addClass('active');
});
</script>

(function (window) {
bs3Utils = {}
bs3Utils.nav = {
activeTab: function (tabId) {
/// <summary>
/// 设置需要展现的tab
/// </summary>
/// <param name="tabId"></param>
$('.nav-tabs a[href="#' + tabId + '"]').tab('show');
}
}
window.bs3Utils = bs3Utils;
})(window);
example:
var _actvieTab = _type == '0' ? 'portlet_tab2_1' : 'portlet_tab2_2';
bs3Utils.nav.activeTab(_actvieTab);
<ul class="nav nav-tabs">
<li class="active">
箱-单灯节点
</li>
<li>
箱-灯组节点
</li>
</ul>

$( ".nav li" ).click(function() {
$('.nav li').removeClass('active');
$(this).addClass('active');
});
check this out.

I am using Flask Bootstrap.
My solution is a little bit simpler because my template already receives the option or choice as a parameter from Flask.
var choice = document.getElementById("{{ item_kind }}");
choice.className += "active";
First line, js code gets the element. So, you should identify each of the elements with a id. I'll show an example below.
Second line, you add the class active.
You can see html ids below.
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li>
<a id="speed" href="{{ url_for('list_gold_per_item',item_kind='speed',level='2') }}">
<h2>Speed</h2>
</a>
</li>
<li>
<a id="life" href="{{ url_for('list_gold_per_item',item_kind='life',level='3') }}">
<h2>Life</h2>
</a>
</li>
</ul>
</div>

I just added a custom class to the ul section named target-active
<ul class="nav navbar-nav target-active">
<li>HOME</li>
<li>FIND A TRUCK</li>
<li>OUR SERVICES</li>
<li>ABOUT US</li>
</ul>
If each li tags click get a new page from different place or same place, no need to add jquery removeClass function.
Add simple one line jquery code to each page to get your desired result
1st link page
$(function(){
$(".target-active").find("[href='/']").parent().addClass("active");
});
2nd link page
$(function(){
$(".target-active").find("[href=find-truck]").parent().addClass("active");
});
3rd link page
$(function(){
$(".target-active").find("[href=our-service]").parent().addClass("active");
});
4th link page
$(function(){
$(".target-active").find("[href=about-us]").parent().addClass("active");
});

jQuery - Non-nested / non-descendant sibling navigation shown on hover event

I have 2 navigation areas. The second should appear when an element in the first is hovered over and it should disappear if the mouse does not move over it.
Very basically i have:
HTML
<ul class="main">
<li class="1">item 1</li>
<li class="2">item 2</li>
</ul>
<div class="sub">
<ul class="1">
<li>1 sub item 1</li>
<li>1 sub item 2</li>
</ul>
<ul class="2">
<li>2 sub item 1</li>
<li>2 sub item 2</li>
</ul>
</div>
I want ul.1 to appear when I hover over li.1 and ul.2 to appear when I hover over li.2, and I want them both to disappear only when I am not hovering over the sub uls.
I've got it working part way:
JAVASCRIPT
var sections = new Array('1', '2');
$.each(sections, function(i, section) {
$('ul.main li.' + section).hover(
function() {
$('div.sub ul').hide();
$('div.sub ul.' + section).show();
}
);
});
This will show the correct section and hide the others, but I can't figure out how what I need so that, when the mouse moves off a ul.main li, the .sub ul disappears if it's not being hovered over.
Update: Fiddle here: http://jsfiddle.net/alluvialplains/XY4mH/

You're part of the way there #EpF. The problem is that your semantic example given above (which is possible to adhere to) is trying to capture a mouseleave event and while it's possible to use jQuery's .not() function to achieve this, it would be expensive. Really, the smartest way to do this is to have an outer wrapper for your whole navigation (wrapping all div's you've got in your existing fiddle) and then bind your show() event to mouseenter, while separately binding your .hide() event (the one for ALL .subz) to an event triggered on mouseleave for the wrapper div.
Given the following HTML:
<div id="nav-wrap">
<ul class="mainz">
<li class="1">item 1</li>
<li class="2">item 2</li>
</ul>
<div class="subz">
<ul class="1">
<li>1 sub item 1</li>
<li>1 sub item 2</li>
</ul>
<ul class="2">
<li>2 sub item 1</li>
<li>2 sub item 2</li>
</ul>
</div>
</div><!-- /END #nav-wrap -->
You can achieve the effect with the following javascript
$( document ).ready( function () {
var $ul = $( '.subz ul' ).hide();
$( '.mainz li' ).on( 'mouseenter', function(event){
$ul.hide().eq( $( this ).index() ).show();
});
$( '#nav-wrap' ).on( 'mouseleave', function(event){
$ul.hide();
});
});
Here is a JSFiddle of it in action: http://jsfiddle.net/XY4mH/4/
Also, I should note that the .hover() function is deprecated in jQuery for quite a while now and could disappear sometime soon. Note that I used the .on() function, which is the correct way to bind these kinds of events in jQuery.

$( document ).ready( function () {
$( '.main li' ).on( 'click', function () {
$( '.sub ul' )
.hide()
.eq( $( this ).index() )
.show();
});
});
That should do the trick. But as #Mottie said, nesting menus would work better / more symantecly
Edit: Sorry this is working on click. Just a sec and I'll have it updated
$( document ).ready( function () {
var $ul = $( '.sub ul' ).hide();
$( '.main li' ).hover(
function () {
$ul
.hide()
.eq( $( this ).index() )
.show();
},
function () {
$ul.hide()
}
);
});

onclick open sub menu, on click close sub menu?

On this page http://kimcolemanprojects.com/ I need to have a drop down menu that opens on click and closes again on click of same anchor. Like it works on this site http://angela-moore.co.uk/
This is my html for the menu so far:
<div class="left" id="nav">
<ul id="menu">
<li id="light">
Lighting + Video
<ul style="display: none;">
<li>Django Django</li>
<li>Suntrap</li>
</ul>
</li>
<li id="photo">
Photograms
</li>
<li id="about">
<a class="active" href="about.html">About</a>
</li></ul>
</div><!--end nav-->
As you can see I only need it to work within one list item. I need help writing the Javascript for this.
So when on index page the user can see three links lighting + video, Photograms, About. When user clicks on lighting + video a sub menu opens beneath with more links. Then it will close again if the user clicks again on lighting + video. The same can happen with each of the initial three links on the index page.

Quite Simple..
<script src="jquery.js"></script>
<div id="navigation">
<p>Menu</p>
<ul id="menu">
<li>Menu 1<ul>
<li>lol</li><li>lol2</li><li>lol</li><li>lol2</li>
</ul></li>
<li>Menu 2<ul>
<li>lol</li><li>lol2</li><li>lol</li><li>lol2</li>
</ul></li>
<li>Menu 3<ul>
<li>lol</li><li>lol2</li><li>lol</li><li>lol2</li>
</ul></li>
<li>Menu 4<ul>
<li>lol</li><li>lol2</li><li>lol</li><li>lol2</li>
</ul></li>
This will be your HTML container etc, under this you will need your javascript to control that hiding and changing!! You can add some styling also if you feel artistic!
<script>
var showMenuText = $('#toggle').text();
var hideMenuText = 'Close';
$('#navigation ul').hide();
$('#navigation ul a.active+ul').show();
hideMenu = function() {
$('#navigation ul#menu').hide();
$('#navigation').removeClass('open');
$('#toggle').text(showMenuText);
}
$('#toggle').click(function(event){
event.stopPropagation(); event.preventDefault();
$('#navigation ul#menu').toggle();
$('#navigation').toggleClass('open');
var toggleText = $('#toggle').text();
(toggleText == showMenuText) ? $(this).text(hideMenuText) : $(this).text(showMenuText);
});
$('ul#menu > li > a').click(function(event){
$this = $(this);
if( $this.hasClass('page') ) parent.location = $this.attr('href');
if( $this.hasClass('home') ) { parent.location = '/'; }
event.preventDefault(); event.stopPropagation();
if( $this.hasClass('active') ) var justclosed = true;
$('a.active').removeClass('active').next('ul').hide();
if(!justclosed) $this.addClass('active').next('ul').show();
});
</script>
This is a simple HTML Example and you can execute it how you like.