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Click outside menu to close it

Here's my function,
$(document).ready(function () {
$('.a').click(function () {
var here = $(this).next('.b');
if (here.is(":visible")) {
here.hide();
} else {
here.show();
}
return false;
});
});
So, whenever I click the button it opens a small tab on same webpage & whenever I click it again it closes it. But once I open the tab I can't close it by just clicking somewhere on webpage apart from tab. I have to click the button again to close it.
How can I close tab just by clicking somewhere on webpage also by on the button?

I end up searching for this on almost every project, so I made this plugin:
jQuery.fn.clickOutside = function(callback){
var $me = this;
$(document).mouseup(function(e) {
if ( !$me.is(e.target) && $me.has(e.target).length === 0 ) {
callback.apply($me);
}
});
};
It takes a callback function and passes your original selector, so you can do this:
$('[selector]').clickOutside(function(){
$(this).removeClass('active'); // or `$(this).hide()`, if you must
});
Nice, chainable, elegant code.

On document click, the closest helps to check whether the tab has been clicked or not:
$(document).click(function (e) {
if($('.b').is(':visible')&&!$(e.target).closest('.b').length){
$('.b').hide();
}
});

You want to check for a click on the body :
$("body").click(function(e) {
if(e.target.id !== 'menu'){
$("#menu").hide();
}
});
menu would be the id of the menu.
If the body is clicked and the id of the div clicked doesn't equal that of the menu, then it closes.

Check this implementation
jQuery(document).ready(function() {
$(document).on('click','body, #btn',function(ev){
ev.stopPropagation()
if(ev.target.id== "btn"){
if($('#modal').is(':visible')) {
$('#modal').fadeOut();
} else{
$('#modal').fadeIn();
}
} else {
$('#modal').fadeOut();
}
});
});
html, body {
height: 100%;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button id="btn">
Click Me!
</button>
<div id="modal" style="background-color:red;display:none;">
BLA BLA BLA
</div>

To check if the clicked element is outside of a given container, i.e. a menu, we can simply check if the event target is a child of the container. Using JQuery -
$('body').click(function(e) {
if ( 0 === $(e.target).parents('#container-id').length ) {
/// clicked outside -> do action
}
})

you have to add a click listener to the parent element, like here:
$('.parent-div').click(function() {
//Hide the menus if visible
});
Also because click events bubbled up from child to the parent,
you can exclude the click on the child element to get bubbled up and count as the parent click too. you can achieve this like below:
//disable click event on child element
$('.child-div').click(function(event){
event.stopPropagation();
});

Chaining multiple Jquery events with OR operator

I'm creating a panel that slides down when the user focuses the search box.
I'm terrible at Jquery but still learning, I've managed to create the basic functionality:
$(document).ready(function() {
$(".search-panel").hide();
$("#search_form [type='text']")
.focus(function() {
$(".search-panel").slideDown("fast");
})
.focusout(function() {
$(".search-panel").slideUp("fast");
});
});
with this basic functionality clicking outside the text box will fold up the panel I'm trying to implement a complex set of conditions whereby:
IF (textbox.focus) { show search panel}
IF (texbox.losefocus) && ( NOT search-panel.mouseover)
&& ( NOT (anything-in-search-panel-is-focused) )
basically I need to make sure that the user is not hovering over or interacting with the panel in some way and that the textbox is not focused before I slide it up.
JsFiddle of current situation:
http://jsfiddle.net/b9g9d6gf/

Instead of using the .focusout() function, you should bind a click function on the document.
$(document).ready(function () {
$(".search-panel").hide();
$("#search_form [type='text']")
.focus(function () {
$(".search-panel").slideDown("fast");
});
$(document).click(function(e) {
if( !( $(e.target).is('#search_form *')) ){
$(".search-panel").slideUp("fast");
}
});
});
If the document is clicked, anywhere, it looks if the target isn't a element inside #search_form. If not, it will slide up the .search-panel.
Note:
I removed the label and changed the span to labels. Clicking a label will also (un)check the checkbox inside it. Having three checkboxes making it act wrong. So either make three separate labels (instead of span) or remove it.
Updated Fiddle

Try this Working Demo
<script>
$(document).mouseup(function (e)
{
var container = $("#search_form");
if (!container.is(e.target) // if the target of the click isn't the container...
&& container.has(e.target).length === 0) // ... nor a descendant of the container
{
$(".search-panel").slideUp("fast");
}
else
{
$(".search-panel").slideDown("fast");
$("#search_form [type='text']").focus();
}
});
</script>

Hide div when user clicks outside unless closing lightbox

I'm currently using the following code to allow a user to show/hide a div on click.
When clicking anywhere outside of the div, it closes the div.
However, there is a link within the div which can open a lightbox. When a user goes to close that lightbox, it also closes the div that the link was contained. Is there anything I can add into the script to stop that from happening?
$(document).ready(function(){
$("a.dropdown-link").click(function(evt) {
evt.preventDefault();
var $div = $(this).next('.info-container');
$(".info-container").not($div).slideUp();
if ($div.is(":visible")) {
$div.slideUp()
} else {
$div.slideDown();
}
});
$(document).click(function(e){
var p = $(e.target).closest('.dropdown').length
if (!p) {
$(".info-container").slideUp();
}
});
$('.movie-link').magnificPopup({type:'iframe'});
});
<a class="dropdown-link" href="#"><div class="dropdown dropdown-processed">More info</div></a>
<div class="info-container" style="display: none;">Video preview: <a class="movie-link" href="videourl"></a></div>
I'm using Magnific Popup for the lightbox: http://dimsemenov.com/plugins/magnific-popup/
My JavaScript knowledge is pretty basic so any help is appreciated.

In the "click to close div function, you can check if the lightbox is on or not. A simple if ($("#lightbox").css("display") == "none") should be able to do the trick
EDIT: put this line after the $(document).ready line
var state = 0; // default state
$('.movie-link').click(function() { state = 1; }); // state = 1, lightbox on
in the source code, on line 384, insert this code
state = 2; //state = 2, lightbox close button clicked
the idea is not firing the "close div" function when the state is 1 (lightbox is on and clicking random stuffs inside, or outside the lightbox) or 2 (lightbox's close button got clicked), and return state to 0 when it was 2
so instead of the if I provided in the comment use this
if (state == 2) {
state = 0;
} else if (state == 0) {
//rest of the code
}
this is just something I put together and haven't tested yet, so I don't actually know if it works or not so just back up your js files just in case.
EDIT 2:
remove all the changes in edit 1 and use this on instead of the if (state == 2) {
if (e.target != $('.mfp-bg')[0] and e.target != $('.mfp-wrap')[0]) {
EDIT 3
var e_class = $(e.target).attr('class');
if (e_class != 'mfp-close' && e_class != 'mfp-container') {
working example: http://imgcrash.comeze.com/test.html

I'm not 100% without actually testing this out but you may be running into issues with $(document).click(...); since clicking anywhere on the document would trigger this event.
When you close the popup you're probably triggering this event and sliding up the info-container div.
It seems that you're looking for clicks on the divs with the class .dropdown. Why not use something like:
$('.dropdown').click(function(e) { ... });

Try this:
$("a.dropdown-link").click(function(evt) {
evt.preventDefault();
evt.stopPropagation(); //We stop the propagation of the event
//Changed it to slideToggle and added stop to prevent weird animation
//on multiple clicks
$(this).next('.info-container').stop().slideToggle()
});
$(document).click(function(e){
//Check if it has the class info-container
if (!$(e.target).hasClass("info-container")) {
$(".info-container").slideUp();
}
});
$('.movie-link').magnificPopup({type:'iframe'});
Fiddle

Using jquery to determine if any elements within a div was clicked

How can I tell using jQuery if an any element within a div (panel1) was clicked? I have this piece of code that I use to show/hide a popup:
$('body').click(function (e) {
if ($(e.target).attr('id') == 'link1') {
$('#panel1').show();
} else {
$('#panel1').hide();
}
});
The problem is that the popup (panel1) gets dismissed if I click on any control/element within panel1. I'd like to keep panel1 open unless an area outside panel1 is clicked (or if link1 is clicked again). How can I revise this code to achieve this? Thanks...

Try this
$('#panel1').click(function (e) {
e.stopPropagation();
//Other code if you want to execute anything on panel click.
});
$('body').click(function (e) {
if($("#panel1").is(":visible"))
$('#panel1').hide();
});

Make a following html markup:
<body>
<div id="div1">
... all the body content here
</div>
<div id="panel1">
</div>
I suppose the popup #panel1 is positioned out of normal flow anyway, so it is no problem.
Then in jquery use div1 instead of body and that's it :-)

$('body').click(function (e) {
if ($(e.target).attr('id') == 'link1') {
$('#panel1').show();
} else if($(e.target).attr('id') != 'panel1') {
$('#panel1').hide();
}
});

How to close a javascript menu

I'm creating pulldown menus that must be clicked on to open. This code lets the user opening menus just fine. The only problem is I haven't figured out how to close the menus yet by clicking outside the menus. I tried adding the "document.onclick" shown, but it takes effect even in the menus.
I think I need to prevent document.onclick from being captured by other elements, but am not sure how to do this cross-platform. Can someone please show me how?
<script type="text/javascript">
var lastOpenedMenuId = null;
function showMenu(menuId) {
if (lastOpenedMenuId != null && lastOpenedMenuId != menuId) {
hideLastOpenedMenu();
}
setMenuVisibility(menuId, 'visible');
lastOpenedMenuId = menuId;
}
function hideMenu(menuId) {
setMenuVisibility(menuId, 'hidden');
}
function hideLastOpenedMenu() {
if (lastOpenedMenuId != null) {
hideMenu(lastOpenedMenuId);
}
}
function setMenuVisibility(menuId, visibleOrHidden) {
var menuElement = document.getElementById(menuId);
menuElement.style.visibility = visibleOrHidden;
}
document.onclick = hideLastOpenedMenu;
</script>
<div onmousedown="showMenu('foodmenu')"><a>FOOD</a></div>
<div id="foodmenu" onmouseup="hideMenu('foodmenu');">
Meat
Tofu
</div>
Thanks in advance.
I have made some progress and have reformulated the question here:
How to stop onclick event in div from propagating to the document?

Depending on whether you have a page layout like this:
<body>
<div id="menu"><!--Menu Stuff--></div>
<div id="main"><!--Main page stuff--></div>
</body>
you could put the onClick handler to close the menu on the div with the id "main" which should work

Someone pointed me to a solution that uses addEventListener. Say, the div is the menu. This code allows the user to click on the document outside the div to do something, such as close the menu. Clicking on the div (say, on a link) will not propagate to the document.
<head>
<script>
function menuHandler(event) {
alert("div clicked");
// Don't propogate the event to the document
if (event.stopPropagation) {
event.stopPropagation(); // W3C model
} else {
event.cancelBubble = true; // IE model
}
}
document.onclick = function() {
alert('document clicked');
};
function addListener() {
var foodMenuElement = document.getElementById('foodmenu');
if (foodMenuElement.addEventListener) {
foodMenuElement.addEventListener('click', menuHandler, false);
} else {
foodMenuElement.attachEvent('onclick', menuHandler);
}
}
</script>
</head>
<body onload="addListener()">
<div id="foodmenu" style="border: 1px solid red;">Click inside this div</div>
or click outside the div.
</body>
Note that the third argument "false" to addEventListener means "fire the event during the capturing phase", but the value doesn't matter because the event propagation is canceled in menuHandler.
This solution works, but I'd like to do the same thing more simply, without addEventListener, so have posted a question at How to stop onclick event in div from propagating to the document?