Closes https://github.com/microsoft/playwright/issues/32159. I
originally set out to enable Strict Mode for our React UI, but found a
way better thing: Enabling the lint rules we had already installed!
`eslint-plugin-react` is already in of our `package.json`, and this PR
enables it and fixes some of the reported issues. Most of them are
around the `key` prop which is mostly about performance, but there's
also fixes for misspelled `data-testid` props.
Pulled out from https://github.com/microsoft/playwright/pull/31900
I stumbled over `React.Children`, because it's the first time I saw that
used. https://react.dev/reference/react/Children lists `React.Children`
it as "Legacy" and mentions it's uncommon. Also, the fact that SplitView
only displays its first two children, and all others are silently
discarded, can be a surprise to some.
By separating things out into `sidebar` and `main`, not only do we give
the two elements names (otherwise one needs to remember that sidebar is
always the first child), but we also prevent any "third children" from
being dropped.
Addresses https://github.com/microsoft/playwright/issues/31863. This PR
is chonky, but the individual commits should be easy to review. If
they're not, i'm happy to break them out into individual PRs.
There's two main things this does:
1. Remove some unused imports
2. Add a `clsx`-inspired helper function for classname templating
I wasn't able to replace `ReactDOM.render` with `ReactDOM.createRoot`.
This is the new recommended way starting with React 18, and the existing
one is going to be deprecated at some point. But it somehow breaks our
tests, i'll have to investigate that separately.
**Description**
When a language port was using Inspector with the "Locator Picker"
feature, it only recognised JavaScript as a language by default. As a
workaround the user was able to click record, interact with the page and
then the language would be correctly used -> csharp e.g. would work in
the "Locator Picker".
**Why?**
Our language bindings are setting `PW_LANG_NAME=<sdkLanguage>` env var
-> good. Our recorder harness also uses this along its internal state
here:
b9b289b641/packages/playwright-core/src/server/recorder.ts (L369)
and it gets used here (no parameter means: we use the first language
aka. primary language):
b9b289b641/packages/playwright-core/src/server/recorder.ts (L95)
The only issue is that the Inspector frontend in the beginning does not
know which language it should use and pass over to the server side, it
then falls back to JavaScript.
**Proposed fix**
Instead of passing it over from the frontend to the server side, we just
always use it from the server side, aka. "currentLanguage". When the
user switches languages in the frontend, "currentLanguage" already gets
updated properly via the "fileChanged" event.
https://github.com/microsoft/playwright-dotnet/issues/2718
---------
Signed-off-by: Max Schmitt <max@schmitt.mx>
