This changes the root object from RemoteBrowser to Playwright,
similar to local driver connection. This way, any remote connection
gets a Playwright object.
This also starts reusing PlaywrightServer class, and introduces
`cli run-server` hidden command that runs ws server on the
specified port.
Previous structure:
```
RemoteBrowser
- browser (using ConnectedBrowser for remote-specific behavior)
- selectors (special instance for this remote connection)
```
New structure:
```
Playwright
- ...
- selectors (special instance for this remote connection)
- preLaunchedBrowser (using ConnectedBrowser for remote-specific behavior)
```
This patch adds support for `technology preview` webkit channel, which
we will keep close to the actual Safari Technology Preview releases.
This channel does not install by default. It is supposed to be installed
with the following CLI command:
```sh
$ npx playwright install webkit-technology-preview
```
Once the channel is installed, it can be used the following way:
```js
const browser = await playwright.webkit.launch({
channel: 'technology-preview',
});
```
**NOTE:** if clients attempt using the channel without installing it,
it'll throw an error with a copyable instructions to install via CLI.
References #5884
This makes dialogs disappear and prevents stalling.
Pros:
- No need to worry about dialogs for most users.
- Those that wait for a specific dialog still get to control it.
Cons:
- Those who use Playwright to show interactive browser will have
to add an empty 'dialog' handler to prevent auto-dismiss.
We do this in cli.
- Instead of capturing snapshots on demand, we now stream them
from each frame every 100ms.
- Certain actions can also force snapshots at particular moment using
"checkpoints".
- Trace viewer is able to show the page snapshot at a particular
timestamp, or using a "checkpoint" snapshot.
- Small optimization to not process stylesheets if CSSOM was not used.
There still is a lot of room for improvement.
- Allow specifying which browsers to install. This comes handy in playwright-cli.
- Print "npx playwright" as a tool name in help messages, instead of "cli".
