event-bubbling

Event bubbling/capturing - where does it start/end?

旧时模样 提交于 2019-12-05 07:55:39
I understand that an event has two modes -- bubbling and capturing. When an event is set to bubble, does Javascript checks up to "document" ? When an event is set to capture, does Javascript always starts from "document"? How does Javascript know where to stop/start ? Update: Let's say I have the following code in my body tag. <div id='outer'> <div id='inner'></div> </div> When I set an event to #inner to bubble, does Javascript check up to document or does it stop at #outer? Event bubbling JavaScript checks all the way up to document. If you add a listener on document and a listener on inner,

jQuery - Click on LI, show/hide UL - Click on LI:a href, continue to show UL and open in Blank Window

穿精又带淫゛_ 提交于 2019-12-05 04:58:41
问题 Thanks to the wonderful contributors here at SO! jQuery is much cooler when you begin to understand it. :) So I have an LI that when clicked shows/hides a child UL. What I would like to do is have the ability to click on an link inside the LI that opens a blank window, but also doesn't close the child UL. The blank window opening is done a[href^="http://"]').attr("target", "_blank"); however, I am not sure how to "return: false" on the LI so it doesn't close the UL when the blank window opens

When are tunneling and bubbling events useful in WPF?

笑着哭i 提交于 2019-12-05 01:03:53
I understand how bubbling and tunneling works. However, i'm confused about using them. Here is why: I want to handle a mouse click event. To bubble it, there is MouseDown and, to tunnel it, there is PreviewMouseDown . However, MouseDown doesn't necessarily mean the user clicked the control. May be the user pressed the button and moved away from it to cancel the click. I wouldn't want to change anything if the button is not being clicked. So my question is, how are the Bubbling/Tunneling strategies useful? If the event is listed RoutedEventArgs , then it's routed event. Routed events support a

Does stopPropgation stop the event from propagating in the capture phase?

吃可爱长大的小学妹 提交于 2019-12-04 17:29:34
问题 I was looking at http://www.quirksmode.org/js/events_order.html and it is ambiguous in this part: In the Microsoft model you must set the event’s cancelBubble property to true . window.event.cancelBubble = true In the W3C model you must call the event’s stopPropagation() method. e.stopPropagation() This stops all propagation of the event in the bubbling phase. So my question is: When an event listener is set to listen in the capture phase, does it automatically not continue propagating to the

Attaching properties to bubbled event object in Javascript

不想你离开。 提交于 2019-12-04 12:44:39
In Chrome/Firefox I can attach my custom properties to an event object in one handler and read them in a different handler for the same event even if the event handling is bubbled up. I cannot do the same in IE. My custom property is lost while event is bubbled up. Do you know if there's any solution or workaround to this? The following is an example of that problem: <div id="div1"> <input type="button" value="Foo" id="button1"> </div> <script> function attach(el, event, fn) { if (el.addEventListener) { el.addEventListener(event, fn); } else if (el.attachEvent) { el.attachEvent('on'+event, fn)

Event Handling order

我怕爱的太早我们不能终老 提交于 2019-12-04 11:51:32
javascript jquery event handling if on event (for example 'click') binded one function for parent element and another handler function for child DOM element, which of them are called? If all of them will be call in which order? Thank you! Events bubble "up" the DOM tree, so if you've got handlers for an element and its parent, the child element handler will be called first. If you register more than one handler for an event on a single DOM element (like, more than one "click" handler for a single button), then the handlers are called in the order that they were attached to the element. Your

Android - Two onClick listeners and one button

杀马特。学长 韩版系。学妹 提交于 2019-12-04 07:46:26
I have a custom TextView which is clickable. It defines its own onClick handler in order to change its appearance based on clicks. However if I then define a second onClick handler in my activity in order to do something based on the button being clicked, only one of the onClick functions is called. onClick is a void function - is there any way to say I didn't process this click, please pass it on to other onClick handlers? To be more clear here is the code: Inside MyCheckButton which extends TextView I have: setOnClickListener( mClickListener ); private OnClickListener mClickListener = new

Trying to prevent jQueryMobile swipe gesture from bubbling, but it's not working

跟風遠走 提交于 2019-12-04 05:21:59
I'm using jQuery Mobile and created something that somewhat resembles Android Holo Tabs: http://note.io/18RNMRk In order to get the swipe gesture to work for switching between tabs, this is the code I've added: $("#myPage #pageTabs").on('swipeleft swiperight', function(e){ e.stopPropagation(); e.preventDefault(); }); $("#myPage").on('swipeleft', function(){ ui.activities.swipe(1); }).on('swiperight', function(){ ui.activities.swipe(-1); }); With the tabs' HTML resembling: <div id="pageTabs"> <div class="tab"> <a href="#" data-dayOfMonth="26">Thu</a> </div> <div class="tab"> <a href="#" data

Why firing a defined event with dispatchEvent doesn't obey the bubbling behavior of events?

泪湿孤枕 提交于 2019-12-04 00:29:45
I'm confused with the script below: var event = new Event('shazam'); document.body.addEventListener('shazam',function(){ alert('body'); }); document.addEventListener('shazam',function(){ alert('document'); }); window.addEventListener('shazam',function(){ alert('window'); }); document.body.dispatchEvent(event); When I run this script on my browser, I just get the alert('body'); event. but if i set the capturing parameter of addEventListener (the third optional parameter) to true, all the alerts captured in order they should. Why the shazam event doesn't bubble up ? Patrick Evans You need to set

jQuery - Click on LI, show/hide UL - Click on LI:a href, continue to show UL and open in Blank Window

亡梦爱人 提交于 2019-12-03 22:16:08
Thanks to the wonderful contributors here at SO! jQuery is much cooler when you begin to understand it. :) So I have an LI that when clicked shows/hides a child UL. What I would like to do is have the ability to click on an link inside the LI that opens a blank window, but also doesn't close the child UL. The blank window opening is done a[href^="http://"]').attr("target", "_blank"); however, I am not sure how to "return: false" on the LI so it doesn't close the UL when the blank window opens. I want the user to be able to see the child UL they were on when they close the blank window. If this