focus method
This method fetches an element with selector
and focuses it.
If there's no element matching selector
, the method throws an error.
Shortcut for page.mainFrame.focus
.
Parameters:
- A
selector
of an element to focus. If there are multiple elements satisfying the selector, the first will be focused. - Promise which resolves when the element matching
selector
is successfully focused. The promise will be rejected if there is no element matchingselector
.
Implementation
Future<void> focus(String selector) {
return mainFrame.focus(selector);
}