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feat: add webContents.fromDevToolsTargetId() (#29399)

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* feat: add webContents.fromDevToolsTargetId()

* refactor: avoid using FromOrCreate
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Samuel Maddock 2021-08-27 17:01:24 -04:00 • committed by GitHub
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docs/api/web-contents.md
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@ -45,6 +45,26 @@ returns `null`.
Returns `WebContents` | undefined - A WebContents instance with the given ID, or
`undefined` if there is no WebContents associated with the given ID.
### `webContents.fromDevToolsTargetId(targetId)`
* `targetId` String - The Chrome DevTools Protocol [TargetID](https://chromedevtools.github.io/devtools-protocol/tot/Target/#type-TargetID) associated with the WebContents instance.
Returns `WebContents` | undefined - A WebContents instance with the given TargetID, or
`undefined` if there is no WebContents associated with the given TargetID.
When communicating with the [Chrome DevTools Protocol](https://chromedevtools.github.io/devtools-protocol/),
it can be useful to lookup a WebContents instance based on its assigned TargetID.
```js
async function lookupTargetId (browserWindow) {
const wc = browserWindow.webContents
await wc.debugger.attach('1.3')
const { targetInfo } = await wc.debugger.sendCommand('Target.getTargetInfo')
const { targetId } = targetInfo
const targetWebContents = await webContents.fromDevToolsTargetId(targetId)
}
```
## Class: WebContents
> Render and control the contents of a BrowserWindow instance.