resetView method
Implementation
Future<void> resetView() async {
final String promiseId = DateTime.now().millisecondsSinceEpoch.toString();
final Completer<void> completer = Completer<void>();
_pendingPromises[promiseId] = completer;
await _controller.evaluateJavascript("""
chart.resetView()
.then(() => window.resetViewJsChannel.postMessage(JSON.stringify({ "id": "$promiseId", "status": "resolved" })))
.catch(error => window.resetViewJsChannel.postMessage(JSON.stringify({ "id": "$promiseId", "status": "error", "message": error })));
""");
return completer.future;
}