public override async void CanExecuteCommand(params IJavascriptObject[] e)
{
var parameter = _JavascriptToCSharpConverter.GetFirstArgumentOrNull(e);
var res = await UiDispatcher.EvaluateAsync(() => _Command.CanExecute(parameter));
UpdateCanExecuteValue(res);
}
private async void ComputeCanExecute()
{
var res = await UiDispatcher.EvaluateAsync(() => _Command.CanExecute);
if (res == _CanExecute)
{
return;
}
_CanExecute = res;
UpdateCanExecuteValue(res);
}
public override async void CanExecuteCommand(params IJavascriptObject[] e)
{
var parameter = _JavascriptToCSharpConverter.GetFirstArgument <T>(e);
if (!parameter.Success)
{
Logger.Error($"Impossible to call CanExecuteCommand on command<{typeof(T)}>, no matching argument found, received:{parameter.TentativeValue} of type:{parameter.TentativeValue?.GetType()} expectedType: {typeof(T)}");
return;
}
var res = await UiDispatcher.EvaluateAsync(() => _Command.CanExecute(parameter.Value));
UpdateCanExecuteValue(res);
}
public async void Execute(IJavascriptObject[] arguments)
{
var promise = GetPromise(arguments);
var argument = GetArgumentValueOnJsContext(arguments);
if (!argument.Success)
{
return;
}
try
{
await await UiDispatcher.EvaluateAsync(async() =>
{
var res = await ExecuteOnUiThread(argument.Value);
_CSharpUnrootedObjectManager.RegisterInSession(res, bridge => SetResult(promise, bridge));
});
}
catch (Exception exception)
{
SetError(promise, exception).DoNotWait();
}
}
public Task <T> EvaluateOnUiContextAsync <T>(Func <T> act)
{
return(UiDispatcher.EvaluateAsync(act));
}