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• 句法
• 范例
• 规范
• 浏览器兼容性
• 相关话题

这是 实验性技术
检查 浏览器兼容性表格 要小心谨慎在生产中使用这之前。

lock() 方法在 键盘 interface returns a Promise after enabling the capture of keypresses for any or all of the keys on the physical keyboard. This method can only capture keys that are granted access by the underlying operating system.

句法

var promise = Keyboard.lock([keyCodes[]])
					

参数

keyCodes 可选

数组 of one or more key codes to lock. If no keycodes are provided all keys will be locked. A list of valid code values is found in the UI Events KeyboardEvent code Values spec.

返回值

A Promise .

范例

Capturing all keys

The following example captures all keypresses.

navigator.keyboard.lock();
					

Capturing specific keys

The following example captures the "W", "A", "S", and "D" keys. It captures these keys regardless of which modifiers are used with the key press. Assuming a standard US QWERTY layout, registering "KeyW" ensures that "W", Shift+"W", Control+"W", Control+Shift+"W", and all other key modifier combinations with "W" are sent to the app. The same applies to for "KeyA" , "KeyS" and "KeyD" .

navigator.keyboard.lock(["KeyW", "KeyA", "KeyS", "KeyD"]);
					

规范

规范	状态	注释
Keyboard Lock The definition of 'lock()' in that specification.	编者草案	初始定义。

浏览器兼容性

The compatibility table in 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
lock	Chrome 68	Edge 79	Firefox No	IE No	Opera 55	Safari No	WebView Android No	Chrome Android No	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android No

图例

完整支持

完整支持

不支持

不支持

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

元数据

• 最后修改： Apr 27, 2020

相关话题

1. 键盘
2. 方法

   1. getLayoutMap()
   2. lock()
   3. unlock()