WebView.canExecuteEditingCommand

void canExecuteEditingCommand(string command,  gio.cancellable.Cancellable cancellable =  null,  gio.types.AsyncReadyCallback callback =  null)

Asynchronously check if it is possible to execute the given editing command.

When the operation is finished, callback will be called. You can then call [webkit.web_view.WebView.canExecuteEditingCommandFinish] to get the result of the operation.

Parameters

`command`	the command to check
`cancellable`	a #GCancellable or null to ignore
`callback`	a #GAsyncReadyCallback to call when the request is satisfied