Waiting For Element Changes

Sometimes you already have a reference to an element, but you want to perform an action that might change the element in some way. One way to do this would be to call WebDriver::query() and poll for the element with its new attributes. But it might be challenging to get the right query, and the query might return a different element that already has the attribute you specified.

If you already have a reference to the element, why not use that to poll for the changes you expect?

The thirtyfour crate provides a way to wait for virtually any desired change on an existing element. It’s called ElementWaiter.

ElementWaiter

The WebElement::wait_until() method returns an ElementWaiter struct.

Using ElementWaiter you can do things like this:

#![allow(unused)]
fn main() {
elem.wait_until().displayed().await?;
// You can optionally provide a nicer error message like this.
elem.wait_until().error("Timed out waiting for element to disappear").not_displayed().await?;

elem.wait_until().enabled().await?;
elem.wait_until().clickable().await?;
}

And so on. See the ElementWaiter docs for more details.