I have a set of links :
<div id="links">
<a>A</a>
<a>B</a>
<a>C</a>
…
</div>
And in the same page also I have a set of tabs:
<ul id="target">
<li>#1</li>
<li>#2</li>
<li>#3</li>
….
</ul>
how can I make the first < a>(A) scroll to the first < li>(#1) and the second < a>(B) scroll to the second < li>(#2) and the third < a>(C) scroll to the third < li>(#3) and so on …….
Note:
The number of links and its targets not fixed It's dynamic, so I can't add id's to every item.
Add IDs to your list elements, and link them up.
<div id="links">
A
B
C
<ul id="target">
<li id="link_1">#1</li>
<li id="link_2">#2</li>
<li id="link_3">#3</li>
</ul>
Granted, this solution does not animate the scrolling, so you jump to the location in the document. Adding a jQuery plugin that adds scrolling animation should work without changing the code, though.
With jQuery, you could do something like this:
$('#links a').on('click', function () {
//get the index of clicked a
var index = $(this).index();
//scroll to the li of equal index
$('html, body').animate({
scrollTop: $($("#target li").eq(index)).offset().top
}, 500);
});
Here's a working example:
https://jsbin.com/ruwacejifi/edit?html,js,output
Related
I have a page with a list of menu items consisting of internal anchors. I'm trying to add an .active class to the selected item. It seems to work on load but when clicking a new item in that same page it doesn't.
When clicking a new menu item, I would like to remove all other active classes and add this class to the clicked item.
Sounds pretty simple, but I can't make it work.
I created this Fiddle, but it doesn't show the issue correctly, since I can't add hashes to the url.
However, maybe someone can point me in the right direction.
JS:
function setActiveLinks() {
var current = location.pathname;
$('.bs-docs-sidenav li a').each(function() {
var $this = $(this);
// Get hash value
var $hash = location.href.substr(location.href.indexOf('#') + 1);
if ($this.attr('href') == '#' + $hash) {
$this.parent().addClass('active');
}
})
}
setActiveLinks();
$('#leftmenu li a').click(function() {
$('#leftmenu li').removeClass('active');
setActiveLinks();
});
HTML:
<ul class="nav bs-docs-sidenav">
<li>
Download
</li>
<li class="active">
What's included
<ul class="nav">
<li class="active">Precompiled</li>
<li>Source code</li>
</ul>
</li>
<li>
Compiling CSS and JavaScript
<ul class="nav">
<li>Installing Grunt</li>
<li>Available Grunt commands</li>
<li>Troubleshooting</li>
</ul>
</li>
</ul>
Thanks. :-)
You have wrong selector to bind click event on anchor element. also you don't need to call setActiveLinks() function(which sets class based on href) here.
You can use context of clicked anchor element to traverse to parent li and add class active in it:
var $navLIs = $('.nav li')
$navLIs.find('a').click(function() {
$navLIs.removeClass('active');
$(this).parent().addClass('active');
});
Working Demo
In my horizontal menu / submenu I'm coding I have a class="hidden" on the subMenuBarWrapper ul that I'd like to remove on the active ul on mouseenter.
Currently I have .toggle which is okay but I'd prefer the "class" way instead. Could someone help me with a possible solution? Thanks.
HTML
<div class="subMenuBarWrapper">
<ul data-parentid="1" class="hidden">
<li class="">
<a href="etc....</a>
</li>
</ul>
</div>
JS
$('.nav_options li a').on('mouseenter', function () {
var targetmatch = $(this).attr('data-submenunum');
$('.subMenuBarWrapper ul').each(function () {
$(this).toggle(targetmatch.length < 1 || $(this).attr('data-parentid').indexOf(targetmatch) > -1);
});
});
You can use your exact same logic and use toggleClass():
$(this).toggleClass('hidden', targetmatch.length < 1 || $(this).data('parentid').indexOf(targetmatch) > -1);
The first argument is the class name to use, and the second is a boolean to determine whether this should be added to or removed from the element in question. Also, note the use of .data() over .attr('data-...')
I'm appending a new list item and trying to scroll it into view.
Here is my HTML:
<div class="slim-scrollbar">
<ul class="chats">
<li class="out">dynamic text with variable lengths</li>
<li class="in">dynamic text with variable lengths</li>
<li class="in">dynamic text with variable lengths</li>
</ul>
</div>
My current jquery to append an item to the list:
var direction='out';
$('.chats').append('<li class="'+direction+'">'+textVar+'</li>');
My jquery attempt:
$(".chats").animate({
scrollTop: ???
}, 1000);
How do I scroll the new list element into view?
To use your code, this should work:
$('body,html').animate({
scrollTop: $('.chats li:last-child').offset().top + 'px'
}, 1000);
Step 1: make sure you've got the scrollTo() plugin installed.
Step 2: Save the appended object in a temporary variable, then scroll the body (or parent div, if in a scrollable div).
var newelem = $('<li class="'+direction+'">'+textVar+'</li>');
$('.chats').append(newelem);
$('body').scrollTo(newelem);
This may not be an option for you if you really need to use the jQuery animation, but, you could also give your list an id and then use native functionality to get the user to the newly added content.
<ul id="new-stuff" class="chats">
//Append the element and all that good stuff.
location.hash = '#new-stuff';
I would suggest a cleaner solution:
var direction = 'out',
lastLi = $("<li/>", {
class: direction,
text: textVar
}).appendTo('.cheats');
$(document).animate({
scrollTop: lastLi.offset().top + 'px'
}, 1000);
Assuming your list is inside a wrapper div with some height.
<div id="chatsWrapper" style="height: 200px; overflow:auto;">
<ul class="chats">
<li class="out">dynamic text with variable lengths</li>
<li class="in">dynamic text with variable lengths</li>
<li class="in">dynamic text with variable lengths</li>
</ul>
</div>
$('.chats').append('<li class="'+direction+'">'+textVar+'</li>');
Just animate the wrapper div to an arbitrarily high pixel value:
$('#chatsWrapper').animate({ scrollTop: 10000 }, 'normal');
I have built a dropdown menu that works fine. It goes like this:
Main menu items are in horizontal bar, then
When hover on any item, big dropdown box (with submenu links) is shown.
And here is my code for this:
HTML:
<!-- Based on Bootstrap -->
<div class="navbar navbar-inverse">
<div class="nav-collapse collapse">
<ul class="nav">
<li>First item
<div id="about-horizontal-submenu" class="horizontal-submenu">
<div class="submenu-container span3">
<ul>
<li>Links</li>
<li>Links</li>
</ul>
</div>
<!-- and 4x similar div (to have 12 cols) -->
</div>
</li>
<li>Dropdown
<div id="about-horizontal-submenu" class="horizontal-submenu">
<!-- 3x similar div (like above) and then: -->
<div class="submenu-container span3">
<ul>
<li>I want to go here</li>
<li>Links</li>
</ul>
</div>
</div>
</li>
<!-- And then goes another main menu item... -->
</ul>
</div>
</div>
</div>
JS:
jQuery(document).ready(function($) {
'use strict';
$('.navbar .nav > li').hover(function() {
var $el = $(this);
$el.addClass('hover');
var $submenu = $el.find('.horizontal-submenu');
if ($submenu.is(':hidden')) {
$submenu.slideDown(200);
}
}, function() {
var $el = $(this);
$el.removeClass('hover');
var $submenu = $el.find('.horizontal-submenu');
if ($submenu.is(':visible')) {
$submenu.hide();
}
});
});
Problem
I think I need to add a little delay before both - sliding Down submenu on very first hover and - changing submenu content (when switching/hovering to another menu item).
Why?
When you hover on "Dropdown" and want to choose "I want to move here":
You have to go down from "Dropdown" item and then to the right - which is ok (but not very usable).
Problem is, when you go like the image is showing (from the "Dropdown" straight to the "I want to move here" - you catch "Third item" on your way and immidiatelly see the content that belongs to "Third item". And that's not very good.
If you could show me how to delay/ignore hover on my menu items for very short time, I would be grateful. (I found great example behavior of menu on: http://FEI.com)
Ben Kamens from Khan Academy wrote an article regarding this exact problem, outlining how Amazon.com solved it. It is a great read!
http://bjk5.com/post/44698559168/breaking-down-amazons-mega-dropdown
He also put together a jQuery plugin to solve this problem with a working demo. You can find it on GitHub here:
https://github.com/kamens/jQuery-menu-aim
http://htmlpreview.github.io/?https://github.com/kamens/jQuery-menu-aim/blob/master/example/example.html
$(function($) {
var m;
var timer="";
var wait=200;
active=function(){
$('.navbar .nav > li').mouseover(function() {
m = $(this);
if(timer==""){
test();
unb();
timer = setTimeout(reb,wait);
}
});
}
test = function(){
$(".horizontal-submenu").stop().hide(300);
m.find(".horizontal-submenu").stop().show(300);
};
unb = function(){
$('.navbar .nav > li').unbind('mouseover');
};
reb = function(){
timer="";
active();
};
$(".horizontal-submenu").hide(300);
active();
});
Adjust 'wait' for your best timing; You can just copy and try on your script.
This might be what you are looking for:-
http://cherne.net/brian/resources/jquery.hoverIntent.html
From this you need 2 lines on your web page to activate the hover to working properly
1) Loading script hoverIntent
2) Change from hover to hoverIntent in your jQuery
please try setTimeout. It always does the trick.
My 1st question on here so I'll try to be as concise as possible.
I have a series of nav elements, some of which have nav sub-elements. My basic structure is:
<nav role="navigation" class="primary-nav main-nav">
<ul>
<li>home</li>
<li class="about-item">about</li>
<li class="study-item">study</li>
<li class="apply-item">apply</li>
<li>people</li>
<li>shows</li>
<li>contact</li>
</ul>
</nav>
<!-- secondary navs -->
<!-- about -->
<nav role="navigation" class="sec-nav sec-nav-about">
<ul>
<li>history</li>
<li>facility</li>
<li>alumni</li>
<li>friends</li>
<li>patrons</li>
<li>singers</li>
</ul>
</nav>
<!-- study -->
<nav role="navigation" class="sec-nav sec-nav-study">
<ul>
<li>foundation</li>
<li class="study-undergrad-item">undergrad</li>
<li class="study-postgrad-item">postgrad</li>
<li>part time</li>
<li>exams</li>
<li>saturday school</li>
<li>sunday school</li>
<li>summer school</li>
</ul>
</nav>
<!-- apply -->
<nav role="navigation" class="sec-nav sec-nav-apply">
<ul>
<li>loans</li>
<li>auditions</li>
<li>fees</li>
<li>exams</li>
<li>saturday school</li>
<li>sunday school</li>
<li>summer school</li>
</ul>
</nav>
(I know these lists could - and should - be nested but this is code I've inherited rather than written myself and I don't want to screw with anything else that might be in the styles).
So - what I want is when the 3rd, 4th and 5th main-nav items are clicked, their corresponding submenu animates using margin-left.
I'm currently using jQuery .toggle() to try and achieve this effect. Here is my jQuery:
$(document).ready(function(){
$('.main-nav .about-item a').toggle (
function(){
$('.sec-nav-about').animate({marginLeft: "480"}, 500);
},
function(){
$('.sec-nav-about').animate({marginLeft: "-250"}, 500);
});
$('.main-nav .study-item a').toggle (
function(){
$('.sec-nav-study').animate({marginLeft: "480"}, 500);
},
function(){
$('.sec-nav-study').animate({marginLeft: "-250"}, 500);
});
$('.main-nav .apply-item a').toggle (
function(){
$('.sec-nav-apply').animate({marginLeft: "480"}, 500);
},
function(){
$('.sec-nav-apply').animate({marginLeft: "-250"}, 500);
});
});
Up to this point, its fine. However, I cannot get beyond this point. I have no idea how to re-work the code to achieve the following:
1) When each main menu item is clicked, if it has a sub-menu and if its not already showing, then the sub-menu animates out (this is working fine).
2) If a sub-menu is already showing, then when its main menu item is clicked then the sub menu animates back in until its not showing (this is also working).
3) If a sub menu is showing and another sub menu item is clicked, the first sub-menu animates back in until its not showing and the new sub-menu animates out. This not working.
I have attempted to add/remove an .active class to each sub-menu like so (just one here for illustrative purposes but all three sub-menus have this applied to them):
$('.main-nav .about-item a').toggle (
function(){
$('.active').animate({marginLeft: "-250"}, 500).removeClass('active');
$('.sec-nav-about').animate({marginLeft: "480"}, 500).addClass('active');
},
function(){
$('.sec-nav-about').animate({marginLeft: "-250"}, 500).removeClass('active');
});
});
Then what happens is that, it seems to work and then after awhile, it stops removing/adding the .active class. I double checked in Chrome's Element Inspector and can see it (not) happening. I need to click the links twice to get the toggle() to work and drive the animation.
Any ideas/suggestions/solutions would be very gratefully appreciated.
(edited for spelling errors).
Thanks,
Will Moore's answer explains why your current method doesn't work. The following should fix your problem. Using the regex on the className property means that we can apply this to all items in your list without having to set each one up individually.
Also, note that we query the 'sub menus to hide' before adding the .active class to the currently selected sub-menu; this avoids hiding it as soon as we show it.
$('.main-nav li').click(function() {
var itemType = this.className.match(/(^| )([^ ]+)-item( |$)/);
if(itemType != null) {
itemType = itemType[2];
}
$secNavItem = $('.sec-nav-' + itemType);
$subMenusToHide = $('.active');
if(!$secNavItem.hasClass('active')) {
$secNavItem
.addClass('active')
.animate({marginLeft: "480"}, 500);
}
$subMenusToHide
.animate({marginLeft: "-250"}, 500)
.removeClass('active');
});
You can see it working in this fiddle: http://jsfiddle.net/ET475/23/
When you click 'Study' it SHOWS the study submenu.
Then you click the 'About' and it HIDES the study menu (shows the about menu).
Now you click 'Study' again. This is only the second click on the study button, so it's going to do the opposite of the last time you clicked it: ie it's going to HIDE the study submenu when you want it to show the study menu.
This works for me:
$('.main-nav .about-item a').click (function(){
var $submenu = $('.sec-nav-about');
// if the submenu you want isn't showing...
if (!$submenu.hasClass('active')) {
// if any other submenu is showing, hide it...
if ($('.active').length > 0){
$('.active').animate({marginLeft: "-250"}, 500, function(){
// ...show submenu AFTER previous submenu is hidden
$submenu.animate({marginLeft: "480"}, 500).addClass('active');
}).removeClass('active');
} else {
// no submenus showing: simply display
$submenu.animate({marginLeft: "480"}, 500).addClass('active');
}
}
});