Window: vrdisplayfocus event

在此页

vrdisplayfocus event of the WebVR API is fired when presentation to a VR display has resumed after being blurred.

可以使用 vrdisplayfocus event in an addEventListener 方法：

window.addEventListener('vrdisplayfocus', function() {
  info.textContent = 'Display focused.';
  reportDisplays();
});

或使用 onvrdisplayfocus 事件处理程序特性：

window.onvrdisplayfocus = function() {
  info.textContent = 'Display focused.';
  reportDisplays();
};

规范	状态	注释
WebVR 1.1 The definition of 'vrdisplayfocus' in that specification.	草案	初始定义

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