ContentVisibilityAutoStateChangeEvent：ContentVisibilityAutoStateChangeEvent() 构造函数
Baseline
2024
Newly available
Since September 2024, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
构造函数 ContentVisibilityAutoStateChangeEvent() 创建新的 ContentVisibilityAutoStateChangeEvent 对象实例。
语法
js
new ContentVisibilityAutoStateChangeEvent(type, options)
参数
type-
表示事件类型的字符串。对于
ContentVisibilityAutoStateChangeEvent，此参数恒为event。 options可选-
包含下列属性的对象：
示例
开发者不会手动使用此构造函数。当触发 contentvisibilityautostatechange 事件导致调用事件处理器时将构造新的 ContentVisibilityAutoStateChangeEvent 对象。
js
canvasElem.addEventListener("contentvisibilityautostatechange", (event) => {
// …
});
规范
| Specification |
|---|
| CSS Containment Module Level 2 # dom-contentvisibilityautostatechangeevent-contentvisibilityautostatechangeevent |