Develop Reference

jQuery on scroll listener after click event

What is the proper way to activate an on scroll listener after a click event?
I'm currently using:
$('.button').click(function (event) {
$(window).on("scroll", someFunction);
}
someFunction = function() {
//do stuff
$(window).off("scroll"); //disable scroll listener
}
On a click event I enable the scroll listener which runs someFunction. The function does stuff and disables the scroll listener when finished. The scroll listener is enabled again on click.
My concern is that I'm not doing it right. Please advise!
Note: The scroll listener cannot run indefinitely. It starts on click and must finish at the end of myFunction.
Note: I'm not trying to detect when user stops scrolling..

You could use jQuery .one():
$('.button').on('click', function() {
$(window).one('scroll', someFunction);
});

Every single click adds an additional scroll event listener. I would encapsulate the binding with an additional variable:
var isScrollBindingActive = false;
$('.button').click(function (event) {
if (!isScrollBindingActive) {
isScrollBindingActive = true;
$(window).on("scroll", someFunction);
}
}
someFunction = function() {
//do stuff
$(window).off("scroll"); //disable scroll listener
isScrollBindingActive = false; // allow binding again if wished
}

You can do it the following way:
$('.button').click(function (event) {
$(window).bind("scroll", someFunction);
}
someFunction = function() {
//do stuff
$(window).unbind("scroll"); // remove scroll listener
}

Using :not() to ignore clicks on children links?

In a script I'm writing with JQuery I'm trying to add a click handler to a div, but ignoring clicks on the children a tags inside it.
You can see a JSFiddle of how I'm currently trying (and failing) to make it happen here: http://jsfiddle.net/q15s25Lx/1/
$(document).ready(function() {
$(document).on('click', '.post:not(a)', function(e) {
alert($(this).text());
});
});
<div class="post">This is some text in a div. Click me please.</div>
In my real page, the a tags all have their own click handlers, so I need to be able to listen for those concurrently.
So, ideally I'd like to use something like the :not() selector to ignore clicks on this particular handler.
Is something like this possible?

You'll need to add another handler that acts on the anchor and stops the event from propagating:
$(document).on('click', '.post a', function (e) {
e.stopPropagation();
e.preventDefault();
});
Without this, when you click the a the event bubbles up to the parent .post, and the handler fires on that anyway.

You need to stop event propagation to child elements using .stopPropagation():
$(document).on('click', '.post a', function(e) {
e.stopPropagation();
});
Working Demo

Just return false; in the end of event handler.
$(document).on('click', '.post', function (e) {
alert($(this).text());//will show entire text
});
$(document).on('click', '.post a', function (e) {
alert($(this).text());//will show 'text'
return false;
});
working fiddle: http://jsfiddle.net/q15s25Lx/2/
return false will server as both e.preventDefault() &
e.stopPropagation()

Try to stop the event from bubbling up the DOM tree using stopPropogation()
$(document).ready(function() {
$(document).on('click', '.post a', function(e) {
e.stopPropagation();
alert($(this).text());
});
});
Fiddle Demo

All of the other posts did not explain why your code failed. Your selector is saying : Find an element that has the class post and is not an anchor. It is NOT saying if a child was clicked and was an achor do not process.
Now there are two ways to solve it. One is to prevent the click from bubbling up from the anchors. You would add another listener on the anchors.
$(document).on('click', '.post a', function (evt) {
evt.stopPropagation(); //event will not travel up to the parent
});
$(document).on('click', '.post', function (evt) {
console.log("Click click");
});
Or the other option is not to add a second event, but check what was clicked.
$(document).on('click', '.post', function (evt) {
var target = $(evt.target); //get what was clicked on
if (target.is("a")) { //check to see if it is an anchor
return; // I am an anchor so I am exiting early
}
console.log("Click click");
});

Or jsut let jquery handle it all for you. return false
$(document).on('click', '.post:not(a)', function() {
alert($(this).text());
return false;
});

Custom Context Menu on everything except "input" in jQuery

I want to add custom context menu with jQuery for the whole body of the page, except the textfields. How can I do that?
I have tried that code:
$('body:not(input)').bind('contextmenu', function(){
/*code*/
});

Check the srcElement before plugin executions. If it's not an input element, do trigger the contextmenu plugin:
$(document).on("contextmenu", function(e) {
if (!$(e.srcElement).is(":input")) { // if it's not an input element...
$(this).triggerTheContextMenuPlugin();
}
});

Use an event listener on the document and check if it was initiated by an input element.
$(document).on("contextmenu", function (e) {
if (e.target.tagName.toUpperCase() === "INPUT") {
console.log("context menu triggered");
}
});
Demo here

Inspired by Salman's solution.
You can stop the event propagation in all input elements, with the e.stopPropagation() function. In doing so, you keep the default behavior of the inputs elements:
$(function() {
$(document).on("contextmenu", function(e) {
alert("Context menu triggered, preventing default");
e.preventDefault();
});
$("input").on("contextmenu", function(e) {
e.stopPropagation();
});
});
JSFiddle Demo

jQuery event contextmenu triggers underlaying div

looking at this event (being bind on 2 divs overlapping each other, look at the jsfiddle)
.on('contextmenu', function() { ... });
Why do both divs being triggered?
How can I detect this and or stop the underlaying div from triggering?
DEMO: jsfiddle
Thanks for any information!

On nested element, you need to stop event bubbling:
$('#div2').on('contextmenu', function(e) {
e.stopPropagation();
$('#log').append('<p>div2 triggered contextmenu!</p>');
});
DEMO

DEMO
$('#div1,#div2').on('contextmenu', function (e) {
e.stopPropagation();
$('#log').append('<p>' + e.target.id + ' triggered contextmenu!</p>');
});
event.target
event.stopPropagation/

You need to prevent event from propogating, try this code:
$('#div1').on('contextmenu', function(e) {
if(!e.isDefaultPrevented()){
$('#log').append('<p>div1 triggered contextmenu!</p>');
e.preventDefault();
}
});
$('#div2').on('contextmenu', function(e) {
if(!e.isDefaultPrevented()){
$('#log').append('<p>div2 triggered contextmenu!</p>');
e.preventDefault();
}
});

How to bind click events to a different class?

So I have two click events for "button-open" and "button-close". I have one button that switches from "button-open" to "button-close" on click. So when i click it again, it should fire the event for "button-close" but instead it fires the event for "button-open" again.
Demo : jsFidde
Here's my code:
Button​
<script>
$(document).ready(function() {
$(".button-open").click(function() {
$(this).removeClass("button-open").addClass("button-close");
alert("Open Was Clicked");
});
$(".button-close").click(function() {
$(this).removeClass("button-close").addClass("button-open");
alert("Close Was Clicked");
});
});
</script>

Use on() instead of click(), since you need to bind to an element that doesn't yet exist when you initially bind it.
$(document).on('click', '.button-open', function() {
$(this).removeClass("button-open").addClass("button-close");
alert("Open Was Clicked");
});
$(document).on('click', '.button-close', function() {
$(this).removeClass("button-close").addClass("button-open");
alert("Close Was Clicked");
});
DEMO.