WindowEventHandlers

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WindowEventHandlers mixin describes the event handlers common to several interfaces like Window ，或 HTMLBodyElement and HTMLFrameSetElement . Each of these interfaces can implement additional specific event handlers.

注意 : WindowEventHandlers is a mixin and not an interface; you can't actually create an object of type WindowEventHandlers .

特性

The events properties, of the form onXYZ , are defined on the WindowEventHandlers , and implemented by Window ，和 WorkerGlobalScope for Web Workers.

WindowEventHandlers.onafterprint: 是 EventHandler 表示要调用的代码当 afterprint 事件被引发。
WindowEventHandlers.onbeforeprint: 是 EventHandler 表示要调用的代码当 beforeprint 事件被引发。
WindowEventHandlers.onbeforeunload: 是 EventHandler 表示要调用的代码当 beforeunload 事件被引发。
WindowEventHandlers.onhashchange: 是 EventHandler 表示要调用的代码当 hashchange 事件被引发。
WindowEventHandlers.onlanguagechange: 是 EventHandler 表示要调用的代码当 languagechange 事件被引发。
WindowEventHandlers.onmessage: 是 EventHandler 表示要调用的代码当 message 事件被引发。
WindowEventHandlers.onmessageerror: 是 EventHandler 表示要调用的代码当 MessageError 事件被引发。
WindowEventHandlers.onoffline: 是 EventHandler 表示要调用的代码当 offline 事件被引发。
WindowEventHandlers.ononline: 是 EventHandler 表示要调用的代码当 online 事件被引发。
WindowEventHandlers.onpagehide: 是 EventHandler 表示要调用的代码当 pagehide 事件被引发。
WindowEventHandlers.onpageshow: 是 EventHandler 表示要调用的代码当 pageshow 事件被引发。
WindowEventHandlers.onpopstate: 是 EventHandler 表示要调用的代码当 popstate 事件被引发。
WindowEventHandlers.onrejectionhandled: 是 EventHandler 表示要调用的代码当 rejectionhandled event is raised, indicating that a Promise was rejected and the rejection has been handled.
WindowEventHandlers.onstorage: 是 EventHandler 表示要调用的代码当 storage 事件被引发。
WindowEventHandlers.onunhandledrejection: 是 EventHandler 表示要调用的代码当 unhandledrejection event is raised, indicating that a Promise was rejected but the rejection was not handled.
WindowEventHandlers.onunload: 是 EventHandler 表示要调用的代码当 unload 事件被引发。

方法

此接口未定义方法。

规范

规范	状态	注释
HTML 实时标准在该规范中的 WindowEventHandlers 定义。	实时标准	无变化从最新快照起， HTML 5.1 .
HTML 5.1 在该规范中的 WindowEventHandlers 定义。	推荐	快照 HTML 实时标准。添加 `onlanguage` 从 HTML5 快照。
HTML5 在该规范中的 WindowEventHandlers 定义。	推荐	快照 HTML 实时标准。创建 `WindowEventHandlers` (properties where on the target before it).

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`WindowEventHandlers`	Chrome Yes	Edge 12	Firefox Yes	IE Yes	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes
`onafterprint`	Chrome 63	Edge 12	Firefox 6	IE Yes	Opera 50	Safari 13	WebView Android 63	Chrome Android 63	Firefox Android ?	Opera Android 46	Safari iOS 13	Samsung Internet Android 8.0
`onbeforeprint`	Chrome 63	Edge 12	Firefox 6	IE Yes	Opera 50	Safari 13	WebView Android 63	Chrome Android 63	Firefox Android ?	Opera Android 46	Safari iOS 13	Samsung Internet Android 8.0
`onbeforeunload`	Chrome 1	Edge 12	Firefox 1	IE 4	Opera 12	Safari 3	WebView Android 1	Chrome Android 18	Firefox Android 4	Opera Android 12	Safari iOS 1	Samsung Internet Android 1.0
`onhashchange`	Chrome 5	Edge 12	Firefox 3.6	IE 8	Opera 10	Safari 5	WebView Android ≤37	Chrome Android 18	Firefox Android 4	Opera Android 10.1	Safari iOS 5	Samsung Internet Android 1.0
`onlanguagechange`	Chrome 37	Edge ≤79	Firefox 32	IE No	Opera 24	Safari ?	WebView Android 37	Chrome Android 37	Firefox Android 4	Opera Android 24	Safari iOS ?	Samsung Internet Android 4.0
`onmessage`	Chrome 60	Edge ≤79	Firefox ?	IE ?	Opera 47	Safari ?	WebView Android 60	Chrome Android 60	Firefox Android ?	Opera Android 44	Safari iOS ?	Samsung Internet Android 8.0
`onmessageerror`	Chrome 60	Edge ≤79	Firefox 57	IE ?	Opera 47	Safari ?	WebView Android 60	Chrome Android 60	Firefox Android 57	Opera Android 44	Safari iOS ?	Samsung Internet Android 8.0
`onpopstate`	Chrome 5	Edge 12	Firefox 4	IE 10	Opera 11.5	Safari 6	WebView Android 37	Chrome Android 18	Firefox Android 4	Opera Android 11.5	Safari iOS 5.1	Samsung Internet Android 1.0
`onrejectionhandled`	Chrome 49	Edge ≤79	Firefox 69 69 68 Disabled Disabled From version 68: this feature is behind the `dom.promise_rejection_events.enabled` preference (needs to be set to `true` ). To change preferences in Firefox, visit about:config. 部分支持 55 Disabled This event handler was added in Firefox 55 but was disabled since it wasn't fully implemented. It was fully implemented in Firefox 68 and enabled by default in Firefox 69. Disabled ). To change preferences in Firefox, visit about:config.	IE No	Opera 36	Safari 11	WebView Android 49	Chrome Android 49	Firefox Android 68 Disabled 68 Disabled Disabled From version 68: this feature is behind the `dom.promise_rejection_events.enabled` preference (needs to be set to `true` ). To change preferences in Firefox, visit about:config. 部分支持 55 Disabled This event handler was added in Firefox 55 but was disabled since it wasn't fully implemented. It was fully implemented in Firefox 68 but not enabled by default. Disabled ). To change preferences in Firefox, visit about:config.	Opera Android No	Safari iOS 11.3	Samsung Internet Android 5.0
`onstorage`	Chrome 1	Edge ≤18	Firefox 45	IE ?	Opera 15	Safari ?	WebView Android ≤37	Chrome Android 18	Firefox Android 45	Opera Android 14	Safari iOS ?	Samsung Internet Android 1.0
`onunhandledrejection`	Chrome 49	Edge ≤79	Firefox 69 69 68 Disabled Disabled From version 68: this feature is behind the `dom.promise_rejection_events.enabled` preference (needs to be set to `true` ). To change preferences in Firefox, visit about:config. 部分支持 55 Disabled This event handler was added in Firefox 55 but was disabled since it wasn't fully implemented. It was fully implemented in Firefox 68 and enabled by default in Firefox 69. Disabled ). To change preferences in Firefox, visit about:config.	IE No	Opera 36	Safari 11	WebView Android 49	Chrome Android 49	Firefox Android 68 Disabled 68 Disabled Disabled From version 68: this feature is behind the `dom.promise_rejection_events.enabled` preference (needs to be set to `true` ). To change preferences in Firefox, visit about:config. 部分支持 55 Disabled This event handler was added in Firefox 55 but was disabled since it wasn't fully implemented. It was fully implemented in Firefox 68 but not enabled by default. Disabled ). To change preferences in Firefox, visit about:config.	Opera Android No	Safari iOS 11.3	Samsung Internet Android 5.0
`onunload`	Chrome Yes	Edge 12	Firefox Yes	IE Yes	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes

图例

完整支持
不支持
兼容性未知 ?
实验。期望将来行为有所改变。

用户必须明确启用此特征。

另请参阅

Window and WorkerGlobalScope

元数据

最后修改： Oct 4, 2019

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特性

方法

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