src/vs/workbench/api/browser/mainThreadWebviewPanels.ts/MainThreadWebviewPanels/$reveal
class MainThreadWebviewPanels:	public $reveal(handle: extHostProtocol.WebviewHandle, showOptions: extHostProtocol.WebviewPanelShowOptions): void {
		const webview = this.getWebviewInput(handle);
		if (webview.isDisposed()) {
			return;
		}

		const targetGroup = this._editorGroupService.getGroup(viewColumnToEditorGroup(this._editorGroupService, showOptions.viewColumn)) || this._editorGroupService.getGroup(webview.group || 0);
		if (targetGroup) {
			this._webviewWorkbenchService.revealWebview(webview, targetGroup, !!showOptions.preserveFocus);
		}
	}