event-handling

I am using this code for logging out user when closes the page, but the user will logout also when clicking on other links (same website): $( window ).unload(function() { $.ajax({url:"?logout&leave=yes", async:false}) }); Is there any way to distinguish between link navigation and real page close? EDIT: I am currently implemented this solution, but it lacks to detect page reload $('a').click(function(){ var url = $(this).attr("href"); window.onbeforeunload = null; $(window).unbind('beforeunload'); window.location = url; }); Try the following solutions, hope this helps <script> $(window).bind(

I know php and nodejs too,in javascript we have asynchronize programming ,so I understand meaning of event in it.but I saw Event in Yii and Zend 2 and use them too,but I can't understand the meaning of it,how it works in php and what exactly does in it? First of all, there are no events in PHP An event is an abstraction for callback functions with their name. Typically, we'd define them as $eventName => $listener , where $listener is a callback function for the $eventName What is the difference between events and regular callback functions? Again - the core point to remember, is that events

Does anyone know of an event loop library (or bindings) available for Python 3? It's okay if it only does UNIX systems, though I would prefer something that does Windows as well. ETA : I realize that it is not terribly difficult to write an event loop system. However, I don't want to reinvent the wheel (we are still encouraging not doing so these days, right? ;-)) This is planned for a server application, so obviously I'd want something that isn't tied to a GUI widget toolkit or something. If the answer is "Nope, there isn't one" (probably; I sure as heck can't find one) then I will most

I'm using Bootstrap4 alpha in my project, and for some investigations purposes, i'm trying to catch a JQuery event using DOM addEventListener() . The event is fired using the JQuery $("#mypanel").trigger("shown.bs.collapse") function by bootstrap in it's collapse component. If i try to catch it using the JQuery $("#mypanel").on("shown.bs.collapse", ... ) function, everything works just fine. But if i use $("#mypanel").get(0).addEventListener("shown.bs.collapse", ... ) on the corresponding DOM elements, the event is not "catched" Are JQuery event system and standard DOM event system are NOT

I am wondering how to set an area as a semi-complex shape (circle) defined in the canvas so when the user mouse overs the shape, a function will be called. I do not wish to use libraries at all such as KineticJS etc. Currently I have added an event listener to the canvas element so that on mouse move I call multiple functions; one of which works out the mouse x/y coordinates relative to the canvas. As such, any rectangular shape is easy to 'listen' for using a basic if statement (as the canvas is interactive and redrawn each mouse move). For circular objects, as well as say triangular objects,

I know this is not recommended, but I need it because I have an iframe inside the page who has the actual content and I want that when the users hits refresh button, iframe reloads not entire page. I know I have to call onunload / onbeforeunload event, but I don't want to ask me if I want to leave the window, just don't. Is that possible? I've got handled the F5 key, but I like to prevent refreshing from button too. UPDATE: I wrote this 5 years ago, browsers do different stuff now, you can still use this for testing your browser set, but your experience may vary from my old research.

Is there any way that I could detect in the following code that either user clicked "leave page" or "stay on page" button ? $(window).on('beforeunload', function (){ return "You save some unsaved data, Do you want to leave?"; }); With a few hacks you can at least determine if the user stayed. If the user left the page, there's not much you can do about that : var timeout; $(window).on('beforeunload', function (){ timeout = setTimeout(function() { // user stayed, do stuff here }, 1000); return "You save some unsaved data, Do you want to leave?"; }); FIDDLE iirc, the unload event is not