WindowEventHandlers mixin describes the event handlers common to several interfaces like Window, or HTMLBodyElement and HTMLFrameSetElement. Each of these interfaces can implement additional specific event handlers.
Note: WindowEventHandlers is a mixin and not an interface; you can't actually create an object of type WindowEventHandlers.
The events properties, of the form onXYZ, are defined on the WindowEventHandlers, and implemented by Window, and WorkerGlobalScope for Web Workers.
WindowEventHandlers.onafterprintEventHandler representing the code to be called when the afterprint event is raised.WindowEventHandlers.onbeforeprintEventHandler representing the code to be called when the beforeprint event is raised.WindowEventHandlers.onbeforeunloadEventHandler representing the code to be called when the beforeunload event is raised.WindowEventHandlers.onhashchangeEventHandler representing the code to be called when the hashchange event is raised.WindowEventHandlers.onlanguagechange
EventHandler representing the code to be called when the languagechange event is raised.WindowEventHandlers.onmessageEventHandler representing the code to be called when the message event is raised.WindowEventHandlers.onmessageerrorEventHandler representing the code to be called when the MessageError event is raised.WindowEventHandlers.onofflineEventHandler representing the code to be called when the offline event is raised.WindowEventHandlers.ononlineEventHandler representing the code to be called when the online event is raised.WindowEventHandlers.onpagehideEventHandler representing the code to be called when the pagehide event is raised.WindowEventHandlers.onpageshowEventHandler representing the code to be called when the pageshow event is raised.WindowEventHandlers.onpopstateEventHandler representing the code to be called when the popstate event is raised.WindowEventHandlers.onstorageEventHandler representing the code to be called when the storage event is raised.WindowEventHandlers.onunhandledrejection
Promise rejection events.WindowEventHandlers.onunloadEventHandler representing the code to be called when the unload event is raised.This interface defines no method.
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'GlobalEventHandlers' in that specification. | Living Standard | No change since the latest snapshot, HTML 5.1. |
| HTML 5.1 The definition of 'GlobalEventHandlers' in that specification. | Recommendation | Snapshot of HTML Living Standard. Added onlanguage since the HTML5 snapshot. |
| HTML5 The definition of 'GlobalEventHandlers' in that specification. | Recommendation | Snapshot of HTML Living Standard. Creation of WindowEventHandlers (properties where on the target before it). |
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | ? | (Yes) | ? |
onbeforeunload | (Yes) | ? | ? | ? | ? |
onhashchange | (Yes) | 3.6 (1.9.2) | ? | (Yes) | ? |
onlanguage
| (Yes) | 32 (32) | ? | (Yes) | ? |
onlanguagechange | (Yes) | ? | ? | (Yes) | ? |
onmessage | (Yes) | ? | ? | (Yes) | ? |
onmessageerror | 60 | ? | ? | 47 | ? |
onoffline | (Yes) | ? | ? | (Yes) | ? |
ononline | (Yes) | ? | ? | (Yes) | ? |
onpagehide | (Yes) | ? | ? | (Yes) | ? |
onpageshow | (Yes) | ? | ? | (Yes) | ? |
onpopstate | (Yes) | ? | ? | (Yes) | ? |
onrejectionhandled | (Yes) | ? | ? | (Yes) | ? |
onstorage | (Yes) | 45 (45) | ? | (Yes) | ? |
onunhandledrejection | (Yes) | ? | ? | (Yes) | ? |
onmessageerror | 60 | 57 (57) | No support | 47 | ? |
| Feature | Android Webview | Chrome for Android | Firefox Mobile (Gecko) | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | (Yes) | ? |
onbeforeunload | (Yes) | (Yes) | ? | (Yes) | ? |
onhashchange | (Yes) | (Yes) | 1.0 (1.9.2) | (Yes) | ? |
onlanguage
| (Yes) | (Yes) | 32.0 (32) | (Yes) | ? |
onlanguagechange | (Yes) | (Yes) | ? | (Yes) | ? |
onmessage | (Yes) | (Yes) | ? | (Yes) | ? |
onmessageerror | 60 | 60 | ? | (Yes) | ? |
onoffline | (Yes) | (Yes) | ? | (Yes) | ? |
ononline | (Yes) | (Yes) | ? | (Yes) | ? |
onpagehide | (Yes) | (Yes) | ? | (Yes) | ? |
onpageshow | (Yes) | (Yes) | ? | (Yes) | ? |
onpopstate | (Yes) | (Yes) | ? | (Yes) | ? |
onrejectionhandled | (Yes) | (Yes) | ? | (Yes) | ? |
onstorage | (Yes) | (Yes) | 45.0 (45) | (Yes) | ? |
onunhandledrejection | (Yes) | (Yes) | ? | (Yes) | ? |
onunload | (Yes) | (Yes) | ? | (Yes) | ? |
onmessageerror | 60 | 60 | 57.0 (57) | 47 | ? |
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https://developer.mozilla.org/en-US/docs/Web/API/WindowEventHandlers