This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The activeElement property of the DocumentOrShadowRoot interface returns the element within the shadow tree which has focus.
var element = DocumentOrShadowRoot.activeElement
A element.
// Know the focused element inside shadow DOM:
this.addEventListener('focus', function(e) {
console.log('Active element (inside shadow dom):',
this.shadowRoot.activeElement);
});
| Specification | Status | Comment |
|---|---|---|
| Shadow DOM | Editor's Draft | Initial definition. |
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 53.0 | ? | ? | ? | 10.0 |
| Feature | Android | Android Webview | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|
| Basic support | No support | 53.0 | ? | ? | ? | ? | 10.0 | 53.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/DocumentOrShadowRoot/activeElement