I'm trying to manually trigger a mousemove event with jQuery. Demo in this fiddle http://jsfiddle.net/qJJQW/
From other similar posts on Stack Overflow it seems that this should work. Why isn't it?
Use jQuery to bind the mousemove event:
$(function () {
$("#test").on("mousemove", youCantHandleTheFunc);
$('#button').click(function () {
$('#test').trigger('mousemove', {type:'custom mouse move'});
});
});
function youCantHandleTheFunc (e,customE) {
if (customE != undefined) {
e = customE;
}
$('#result').html(e.type);
}
Your updated fiddle.
jQuery's trigger() only triggers event handlers set with jQuery ?
$(function(){
$('#test').on('mousemove', youCantHandleTheFunc);
$('#button').click(function(){
$('#test').trigger('mousemove',{type:'custom mouse move'});
});
});
function youCantHandleTheFunc(e,customE){
if (customE!=undefined){
e=customE;
}
$('#result').html(e.type);
}
FIDDLE
Related
I'm having troubles with the .bind() and .unbind() features. When the button is clicked, it's supposed to change the color of the box. During this time, the button is disabled by unbinding the click function. However, I'm having issues rebinding the click when the css transition completes.
What I have so far is:
$('button').on('click', function(){
$('button').unbind('click');
$('.box').toggleClass('color');
$('.box').one('webkitTransitionEnd transitionend', function(e){
console.log('transition ended')
$('button').bind('click')
});
});
http://jsfiddle.net/t6xEf/
You need to pass the click handler when binding it. So create a function reference then use it while binding the handler.
function click() {
$('button').off('click.transition');
$('.box').toggleClass('color');
}
$('.box').on('webkitTransitionEnd transitionend', function (e) {
console.log('transition ended')
$('button').on('click.transition', click)
});
$('button').on('click.transition', click);
Demo: Fiddle
Also look at the usage of namespaces while registering/removing the handler because if there if some other click handler added to the button we don't want to disturb it
Also do not add a event handler inside another one
Also have a look at .one()
function click() {
$('.box').toggleClass('color');
}
$('.box').on('webkitTransitionEnd transitionend', function (e) {
console.log('transition ended')
$('button').one('click.transition', click)
});
$('button').one('click.transition', click);
Demo: Fiddle
I would use a flag instead of binding/rebinding the event handler:
var animating = false;
$('button').on('click', function() {
if (animating) return;
animating = true;
$('.box').toggleClass('color')
.on('webkitTransitionEnd transitionend', function(e) {
animating = false;
});
});
http://jsfiddle.net/t6xEf/1/
Do not unbind. Use a boolean:
var onTrans = false;
$('button').on('click', toggle);
function toggle() {
if (!onTrans){
$('.box').toggleClass('color');
onTrans = true;
$('.box').on('webkitTransitionEnd transitionend', function (e) {
onTrans = false;
});
}
}
http://jsfiddle.net/jp8Vy/
This is surely not what you want to do. It seems overly complex, and I can't imagine a good use case scenario.
That being said, you need to reattach the functionality to be performed in the final bind statement. You call the function to bind to the click event, but don't tell the function what to attach.
You need something like this:
$('button').bind('click', function() { ... });
However, that probably isn't what you really want. It sounds like you just want to set the button's "disabled" attribute to false, then to true after the animation.
I have this situation: http://jsfiddle.net/Lm7ac/4/
$(".more").hide();
$(document).on("click", ".btn",function() {
alert("hello");
});
$(document).on("click", "div.post",function() {
var morediv = $(this).find(".more");
morediv.slideToggle('fast');
});
I need to keep ".more" closed(or open) when click in ".btn".
How can i do that?
Thanks
Use event.stopPropagation():
$(document).on("click", ".btn",function(event) {
event.stopPropagation();
alert("hello");
});
...note the event argument to the callback, make sure to include it as above.
http://jsfiddle.net/KJ5Uv/
Cheers
Just return false at the end of the .btn click event handler.
$(document).on("click", ".btn",function() {
alert("hello");
return false;
});
When you return false in a jQuery event handler it's like calling event.preventDefault() as well as event.stopPropagation() at the same time.
Here is a demo: http://jsfiddle.net/Lm7ac/5/
Docs for event.preventDefault(): http://api.jquery.com/event.preventDefault/
Docs for event.stopPropagation(): http://api.jquery.com/event.stopPropagation/
I have the following function to open an overlay menu:
$('.context-switch').click(function() {
$(".context-switch-menu").toggle();
});
To hide the menu, I would like the user to be able to click on any area outside ".context-switch-menu"
I am trying with :not() but with no success..
$('body').click(function(e) {
if ($(e.target).hasClass('context-switch')) {
return;
}
$(".context-switch-menu").hide();
});
$('.context-switch').click(function() {
$(".context-switch-menu").toggle();
return false;
});
The reason this can be difficult is because of event bubbling.
You can try something like this:
$('.context-switch').click(function(e) {
e.stopPropagation();
$(".context-switch-menu").toggle();
});
$(".context-switch-menu").click(function(e){
e.stopPropagation();
});
$("body").click(function(e){
$(".context-switch-menu").hide();
});
The e.stopPropagation() prevents the click event from bubbling to the body handlers. Without it, any click to .context-switch or .context-switch-menu would also trigger the body event handler, which you don't want, as it would nullify the effect of the .context-switch click half the time. (ie, if the state is hidden, and then you click to show, the event would bubble and trigger the body handler that would then hide the .context-switch-menu again.)
Without testing, would something like this work?:
$('.context-switch').click(function() {
$(".context-switch-menu").show();
});
$(document).click(function() {
$(".context-switch-menu").hide();
});
Instead of using document, 'html' or 'body' may work as well.
$(document).on('click', function(e) {
if (e.target.className !='context-switch-menu') {
$(".context-switch-menu").hide();
}
});
Just an idea here, based on what what others have suggested in the past:
$(document).click(function(e){
//this should give you the clicked element's id attribute
var elem = $(e.target).attr('classname');
if(elem !== 'context-switch-menu'){
$('.context-switch-menu').slideUp('slow');
//or however you want to hide it
}
});
try this, we don't want to call a function when you clicked on the element itself, and not when we click inside the element. That's why we need 2 checks.
You want to use e.target which is the element you clicked.
$("html").click(function(e){
if( !$(e.target).is(".context-switch-menu") &&
$(e.target).closest(".context-switch-menu").length == 0
)
{
alert("CLICKED OUTSIDE");
}
});
Live fiddle: http://jsfiddle.net/Xc25K/1/
I want to show a menu after a click, drag, and release action.
How do I trigger that with jQuery?
Listen for a mousedown event on whatever should be clicked on.
Add a mousemove and mouseup event handler to the window
In the mouseup event handler call trigger('yourcustomeventhere') on whatever element you please. Also, remove the mouseup and mousemove event handlers from window
...?
profit.
jQuery is the library that will do this for you. I thought I explained the code well enough, but apparantly not:
$(anElement).mousedown(foodown);
function foodown(){
$(window).mousemove(foomove).mouseup(fooup);
//stuff
}
function foomove(){
//stuff
}
function fooup(){
$(someElement).trigger('yourcustomevent');
$(window).unbind('mousemove', foomove).unbind('mouseup', fooup);
}
/**
* Dragondrop jQuery plugin by zzzzBov
*/
(function ($) {
"use strict";
var $window;
function begin(e) {
var event;
$window.mousemove(drag).mouseup(end);
event = $.Event('beginDragon');
$(e.target).trigger(event);
if (event.isDefaultPrevented()) {
e.preventDefault();
}
}
function drag(e) {
var event;
event = $.Event('dragDragon');
$(e.target).trigger(event);
if (event.isDefaultPrevented()) {
e.preventDefault();
}
}
function end(e) {
var event;
event = $.Event('endDragon');
$(e.target).trigger(event);
$window.unbind('mousemove', drag).unbind('mouseup', end);
if (event.isDefaultPrevented()) {
e.preventDefault();
}
}
$.each('beginDragon dragDragon endDragon'.split(' '), function (i, name) {
$.fn[name] = function(data,fn) {
if (fn == null) {
fn = data;
data = null;
}
return arguments.length > 0 ?
this.bind(name, data, fn) :
this.trigger(name);
};
});
$window = $(window);
$window.mousedown(begin);
}(jQuery));
You could use the jQueryUI and let it do a lot for you. It also comes with a create UI (of course, because it's jQuery UI)
Take a look at this: http://jqueryui.com/demos/droppable/
edit:
Or take a look here: http://jqueryui.com/demos/draggable/
Take a close look to the events used here.
jQuery UI has a drag and drop implementation. If that doesn't do what you do, you'll have to roll your own implementation by tracking the mouseup and mousedown events on the element yourself. (And possibly mouseleave to detect if the mouse left the area you want to track the gesture in.)
Is there another in jquery to run a function at page load and at a keyup event instead of the way I'm doing it?
$(function() {
totalQty();
$("#main input").keyup(function() {
totalQty();
});
});
Disregarding live or delegate optimizations, you can trigger an event like this:
$(function() {
$("#main input").keyup(function() {
totalQty();
}).filter(":first").keyup(); //Run it once
});
No need for the filter if it's not on multiple elements, just leave it out in that case.
You can use $(document).ready event to run functions on load:
$(document).ready(function(){
/* your code here */
});
Here's what I would do (jQuery 1.4+ )
$(document).ready(function() {
totalQty();
$("#main").delegate("input","keyup",function() {
totalQty();
});
});
You could use $.live(), which does event delegation, which is MUCH more efficient than created an event listener for every single input tag...and then missing any dynamically created ones. Try the following:
$(document).ready(function() {
totalQty();
$('#main input').live('keyup', function() {
totalQty();
});
});