Develop Reference

Javascript keypress

Try to do something hide alert window by pressing spacebar or any key in keyboard.
existing only able to do using click listener.
$('.alertWindow1').click(function (event) {
s.hide();
});
Trying this code but not able function
$('.alertWindow1').keypress(function (event) {
if (event.keyCode == 27) {
s.hide();
}
});
This is full existing code, try to add hide the alert window using keypress
<script type="text/javascript">
jQuery.extend({
alertWindow: function (e, n) {
var e = e, r; n === undefined ? r = "#00a8b7" : r = n;
if ($("body").find(".alertWindow1").length === 0) {
var i = '<div class="alertWindow1" style="width: 100%;height: 100%; background:rgba(0,0,0,0.5);position: fixed; left:0px; top: 0px; z-index: 9999;"><div id="successImg" style="margin-top:200px;margin-left:20px;text- align:center;" >' + "</div>" + "</div>";
$("body").append(i);
var s = $(".alertWindow1");
var ddbarcode = $('#hidbarcode').val();
if (ddbarcode != "") {
displayCard(ddbarcode);
}
$('.alertWindow1').click(function (event) {
s.hide();
});
}
else {
$(".alertWindowContent").text(e), $(".alertWindow1").show(), setTimeout(function () {
$(".alertWindow1").hide();
}, 1000);
}
}
})
</script>

You need to think about where the event is firing, and where it will bubble to.
Key events start wherever the focus is.
The div you are adding to the document isn’t focusable. It has no descendants that are focusable. Even if it did, you haven’t done anything to move the focus from where it is now to such an element.
So the key event will start where the focus is now and bubble up until it hits the document object without even passing through that div. This means it never passes anywhere that you listen for it.
You can listen on the document object instead.

How to catch clicks on multiple images?

I have an iOS uiwebview with multiple imagemaps that I need to catch clicks on, so I can handle scaling on different iOS devices. The click handler I install works on the first image, but not on subsequent images. How do I make the click handler work on multiple images? The relevant code is below:
$.fn.imageMapSetup2 = function () {
$('img').each(function () {
if (typeof ($(this).attr('usemap')) == 'undefined') {
return;
}
var img = $(this);
// add click handler
img.on('click', function (event) {
img.imgClick(event);
});
});
};
$.fn.imgClick = function (mouseDown) {
mouseDown.preventDefault();
var $img = this;
var map = $img.attr('usemap').replace('#', '');
$('map[name="' + map + '"]').find('area').each(function () {
var $this = $(this),
coords = $this.attr('coords').split(',');
// lots of scaling code omitted
if (mouseX >= left && mouseX <= right &&
mouseY >= top && mouseY <= bottom) {
window.location = $this.attr('href');
}
});
};
FYI I have debugged the code in Safari and function imgClick() is not getting called for the second and subsequent images.

Add a click event listener to the parent element of the images. This could be the body element. Pass the event as an argument. Then, check the event, and use that variable to make changes to your image.
document.addEventListener("click", function (event) {
if (!event.target.tagName === "img") return;
if (typeof event.target.getAttribute("usemap") == "undefined") {
return;
}
imgClick(event);
});

Close all Angular JS Bootstrap popovers with click anywhere on screen?

I am using the Angular directives for bootstrap.
I have a popover as in their example:
<button popover="Hello, World!" popover-title="Title" class="btn btn-default ng-scope">Dynamic Popover</button>
It closes when you click on the button again. I'd like to close it -- and any other open popovers -- when the user clicks anywhere.
I don't see a built-in way to do this.

angular.element(document.body).bind('click', function (e) {
var popups = document.querySelectorAll('.popover');
if(popups) {
for(var i=0; i<popups.length; i++) {
var popup = popups[i];
var popupElement = angular.element(popup);
if(popupElement[0].previousSibling!=e.target){
popupElement.scope().$parent.isOpen=false;
popupElement.remove();
}
}
}
});

This feature request is being tracked (https://github.com/angular-ui/bootstrap/issues/618). Similar to aet's answer, you can do what is recommended in the feature request as a work-around:
$('body').on('click', function (e) {
$('*[popover]').each(function () {
//Only do this for all popovers other than the current one that cause this event
if (!($(this).is(e.target) || $(this).has(e.target).length > 0)
&& $(this).siblings('.popover').length !== 0
&& $(this).siblings('.popover').has(e.target).length === 0)
{
//Remove the popover element from the DOM
$(this).siblings('.popover').remove();
//Set the state of the popover in the scope to reflect this
angular.element(this).scope().tt_isOpen = false;
}
});
});
(source: vchatterji's comment in feature request mentioned above)
The feature request also has a non-jQuery solution as well as this plnkr: http://plnkr.co/edit/fhsy4V

angular.element(document.body).bind('click', function (e) {
var popups = document.querySelectorAll('.popover');
if (popups) {
for (var i = 0; i < popups.length; i++) {
var popup = popups[i];
var popupElement = angular.element(popup);
console.log(2);
if (popupElement[0].previousSibling != e.target) {
popupElement.scope().$parent.isOpen = false;
popupElement.scope().$parent.$apply();
}
}
}
});

What you say it's a default settings of the popover, but you can control it with the triggers function, by putting blur in the second argument of the trigger like this popover-trigger="{mouseenter:blur}"

One idea is you can change the trigger to use mouse enter and exit, which would ensure that only one popover shows at once. The following is an example of that:
<button popover="I appeared on mouse enter!"
popover-trigger="mouseenter" class="btn btn-default"
popover-placement="bottom" >Hello World</button>
You can see this working in this plunker. You can find the entire list of tooltip triggers on the angular bootstrap site (tooltips and popovers have the same trigger options). Best of luck!

Had the same requirement, and this is how we did it:
First, we modified bootstrap, in the link function of the tooltip:
if (prefix === "popover") {
element.addClass('popover-link');
}
Then, we run a click handler on the body like so:
$('body').on('click', function(e) {
var clickedOutside = true;
// popover-link comes from our modified ui-bootstrap-tpls
$('.popover-link').each(function() {
if ($(this).is(e.target) || $(this).has(e.target).length) {
clickedOutside = false;
return false;
}
});
if ($('.popover').has(e.target).length) {
clickedOutside = false;
}
if (clickedOutside) {
$('.popover').prev().click();
}
});

I am using below code for same
angular.element(document.body).popover({
selector: '[rel=popover]',
trigger: "click"
}).on("show.bs.popover", function(e){
angular.element("[rel=popover]").not(e.target).popover("destroy");
angular.element(".popover").remove();
});

Thank you Lauren Campregher, this is worked.
Your code is the only one that also runs the state change on the scope.
Only configured so that if you click on the popover, the latter closes.
I've mixed your code, and now also it works if you click inside the popover.
Whether the system, whether done through popover-template,
To make it recognizable pop up done with popover-template, I used classes popover- body and popover-title, corresponding to the header and the body of the popover made with the template, and making sure it is pointing directly at them place in the code:
angular.element(document.body).bind('click', function (e) {
var popups = document.querySelectorAll('.popover');
if(popups) {
for(var i=0; i<popups.length; i++) {
var popup = popups[i];
var popupElement = angular.element(popup);
var content;
var arrow;
if(popupElement.next()) {
//The following is the content child in the popovers first sibling
// For the classic popover with Angularjs Ui Bootstrap
content = popupElement[0].querySelector('.popover-content');
// For the templating popover (popover-template attrib) with Angularjs Ui Bootstrap
bodytempl = popupElement[0].querySelector('.popover-body');
headertempl= popupElement[0].querySelector('.popover-title');
//The following is the arrow child in the popovers first sibling
// For both cases.
arrow = popupElement[0].querySelector('.arrow');
}
if(popupElement[0].previousSibling!=e.target && e.target != content && e.target != arrow && e.target != bodytempl && e.target != headertempl){
popupElement.scope().$parent.isOpen=false;
popupElement.remove();
}
}
}
});
Have ever a good day, thank you Lauren, thank you AngularJS, Thank You So Much Stack Family!
Updated:
I updated all adding extra control.
The elements within the popover were excluded from the control (for example, a picture inserted into the body of the popover.). Then clicking on the same closed.
I used to solve the command of API Node.contains, integrated in a function that returns true or false.
Now with any element placed inside, run the control, and keeps the popover open if you click inside :
// function for checkparent with Node.contains
function check(parentNode, childNode) { if('contains' in parentNode) { return parentNode.contains(childNode); } else { return parentNode.compareDocumentPosition(childNode) % 16; }}
angular.element(document.body).bind('click', function (e) {
var popups = document.querySelectorAll('.popover');
if(popups) {
for(var i=0; i<popups.length; i++) {
var popup = popups[i];
var popupElement = angular.element(popup);
var content;
var arrow;
if(popupElement.next()) {
//The following is the content child in the popovers first sibling
// For the classic popover with Angularjs Ui Bootstrap
content = popupElement[0].querySelector('.popover-content');
// For the templating popover (popover-template attrib) with Angularjs Ui Bootstrap
bodytempl = popupElement[0].querySelector('.popover-body');
headertempl= popupElement[0].querySelector('.popover-title');
//The following is the arrow child in the popovers first sibling
// For both cases.
arrow = popupElement[0].querySelector('.arrow');
}
var checkel= check(content,e.target);
if(popupElement[0].previousSibling!=e.target && e.target != content && e.target != arrow && e.target != bodytempl && e.target != headertempl&& checkel == false){
popupElement.scope().$parent.isOpen=false;
popupElement.remove();
}
}
}
});

Noob on JS -- why is document.onclick not working properly?

I'm trying to make a gallery of pictures appear when a link is clicked, and disappear when anywhere in the browser window is clicked following that. I can change the function associated with clicking on the "galleryshow" element so that if I click it the gallery is shown and if I click it again the gallery disappears; but if I try to make it so that if the window (or document) is clicked the gallery closes, nothing happens.
This is my code:
function gallerymake() {
document.onclick = function () {gallerytake();};
// document.getElementById("hoverage").onclick = function() {gallerytake();};
document.getElementById("galleryhold").style.visibility="visible";
}
function gallerytake(){
document.getElementById("hoverage").onclick = function () {gallerymake();};
document.getElementById("galleryhold").style.visibility="hidden";
}
Thanks

freejosh's answer works. However, calling e.stopPropagation() may have undesired side effects if there are other handlers using event delegation, since those handlers may not get called.
One of the basics of event handling is that they should not affect or depend on other handlers as much as possible, say if you had two buttons needing to show two different divs. By calling e.stopPropagation(), clicking on one of the popups would not hide the other popup. See document.click keep toggling the menu for an example of where it didn't work since it collided with lightbox event handlers. Therefore, a solution that doesn't affect any other code is to install a document click handler that only does its work if the click didn't come from the button or within your popup.
http://jsfiddle.net/b4PXG/2/
HTML
Here is my web page <button id="show-btn"> show popup</button>
<div id="modal" > I will show over everything Google</div>​
JS
var modal = document.getElementById('modal');
var btn = document.getElementById('show-btn');
btn.onclick = function() {
modal.style.display = "block";
};
document.onclick = function (e) {
e = e || window.event;
var target = e.target || e.srcElement;
if (target !== btn && (!target.contains(modal) || target !== modal)) {
modal.style.display = 'none';
}
}
You can abstract this pattern into a function that creates the doc click handlers
/**
* Creates a handler that only gets called if the click is not within any
* of the given nodes
* #param {Function} handler The function to call (with the event object as
* as its parameter)
* #param {HTMLElement} exclude... If the click happens within any of these
* nodes, the handler won't be called
* #return {function} A function that is suitable to be
* bound to the document click handler
*/
function createDocClickHandler(handler /* [,exclude, exclude, ...] */) {
var outerArgs = arguments;
return function (e) {
e = e || window.event;
var target = e.target || e.srcElement;
// Only call the original handler if the click was outside all the excluded nodes
var isWithinExcluded = false;
for (var i=1; i < outerArgs.length; i++) {
var excluded = outerArgs[i];
if (target === excluded || excluded.contains(target)) {
isWithinExcluded = true;
break;
}
}
if (!isWithinExcluded) {
handler.call(this, e);
}
}
}
var modal = document.getElementById('modal');
var btn = document.getElementById('show-btn');
btn.onclick = function() {
modal.style.display = "block";
};
// Assign the handler that will hide the popup if the clicked
// happened outside of modal and btn
document.onclick = createDocClickHandler(function (e) {
modal.style.display = 'none';
}, modal, btn);

Your click event bubbles up to the document every time you click the hoverage element, so gallerymake() and gallerytake() are being called. See this page for an explanation of events.
To prevent this use e.stopPropagation(). See this fiddle for a working example.

How to write custom event which gets fired when user click three times

i am trying to write a custom event which should get fire when user click three times on any html node.
i know that i can create even using
var evt = document.createEvent("Event");
evt.initEvent("myEvent",true,true);
but i am not getting how i will capture that three times click event.
I will be appreciated if some one can suggest me the write approach for this.
Thanks!!!

You can create a special event
Code and example - here is your problem solvation :)

Just create a variable that stores the number of clicks.
var clickTimes = 0;
element.addEventListener('click', function(event) {
clickTimes++;
if(clickTimes==3) {
clickTimes = 0;
/* do something like dispatch my custom event */
}
});

This will count the clicks for any specific element and trigger Event on every third click.
$('selector').on('click',function(e){
Event_threshold = 500;
var clicked_times = $(this).data('Event-clicked-times');
if(clicked_times == '')
clicked_times = 0;
if(clicked_times == 0)
$(this).data('Event-first-click-timestamp',e.timeStamp);
clicked_times++;
if(e.timeStamp-$(this).data('Event-first-click-timestamp')<Event_threshold)
{
if(clicked_times == 3)
{
$(this).data('Event-clicked-times',0);
$(this).trigger('Event');
}
else
$(this).data('Event-clicked-times',clicked_times);
}
else
$(this).data('Event-clicked-times',0);
});
EDIT:
Fixed and added threshold control.

You can create iteration variable and check if element was three times clicked.
For example:
var clickTimer = 0;
document.body.addEventListener('click', function() {
clickTimer++;
if(clickTimer == 3) {
clickTimer = 0;
// fire your event
}
}, true);
To make this behavior like dbclick you can compare timestamp with first click.
For example:
var clickTimes = 0;
var fisrtClickTime = 0;
element.addEventListener('click', function(event) {
clickTimes++;
if(clickTimes == 1) {
fisrtClickTime = +new Date();
}
if(clickTimes == 3) {
clickTimes = 0;
firstClickTime = 0;
if((+new Date() - fisrtClickTime) < 1000) {
/* do something like dispatch my custom event */
}
}
});

This works without using external variables, using the HTML5 "data-" attribute for storage, so you will work on multiple elements.
$('#yourLink').click(function() {
window.setTimeout(function() {$(this).data("count",1)},300)
if(typeof $(this).data("count")=='undefined') {
$(this).data("count",1)
}
else {
var myCount = parseInt($(this).data("count"))
myCount++
if(myCount==3) {
alert("3!")
$(this).data("count",0)
}
else {
$(this).data("count",myCount)
}
}
})