private void OnJumpToState(object sender, JumpToStateCallback e)
{
SequenceNumberOfCurrentState = e.payload.actionId;
using (Store.BeginInternalMiddlewareChange())
{
Dictionary <string, IFeature> featuresByName = Store.Features.ToDictionary(x => x.GetName());
var newFeatureStates = (IDictionary <string, object>)JsonUtil.Deserialize <object>(e.state);
foreach (KeyValuePair <string, object> newFeatureState in newFeatureStates)
{
// Get the feature with the given name
if (!featuresByName.TryGetValue(newFeatureState.Key, out IFeature feature))
{
continue;
}
// Get the generic method of JsonUtil.Deserialize<> so we have the correct object type for the state
string deserializeMethodName = nameof(JsonUtil.Deserialize);
MethodInfo deserializeMethodInfo = typeof(JsonUtil)
.GetMethod(deserializeMethodName)
.GetGenericMethodDefinition()
.MakeGenericMethod(new Type[] { feature.GetStateType() });
// Get the state we were given as a json string
string serializedFeatureState = newFeatureState.Value?.ToString();
// Deserialize that json using the generic method, so we get an object of the correct type
object stronglyTypedFeatureState =
string.IsNullOrEmpty(serializedFeatureState)
? null
: deserializeMethodInfo.Invoke(null, new object[] { serializedFeatureState });
// Now set the feature's state to the deserialized object
feature.RestoreState(stronglyTypedFeatureState);
}
}
FluxorComponent.AllStateHasChanged();
}
public async Task DispatchAsync(IAction action)
{
if (action == null)
{
throw new ArgumentNullException(nameof(action));
}
// Do not allow task dispatching inside a middleware-change.
// These change cycles are for things like "jump to state" in Redux Dev Tools
// and should be short lived.
// We avoid dispatching inside a middleware change because we don't want UI events (like component Init)
// that trigger actions (such as fetching data from a server) to execute
if (IsInsideMiddlewareChange)
{
return;
}
if (!HasActivatedStore)
{
throw new InvalidOperationException("Store has not been initialized. Add `@Store.Initialize()` to your layout page");
}
var actionsToDispatch = new Queue <IAction>();
actionsToDispatch.Enqueue(action);
while (actionsToDispatch.Any())
{
IAction currentActionToDispatch = actionsToDispatch.Dequeue();
// Allow middlewares to veto the dispatching of an action
if (Middlewares.Any(x => !x.MayDispatchAction(currentActionToDispatch)))
{
break;
}
ExecuteMiddlewareBeforeDispatch(currentActionToDispatch);
// Notify all features of this action
foreach (var featureInstance in FeaturesByName.Values)
{
NotifyFeatureOfDispatch(featureInstance, currentActionToDispatch);
}
;
FluxorComponent.AllStateHasChanged();
IEnumerable <IAction> actionsCreatedByMiddlewares =
ExecuteMiddlewareAfterDispatch(currentActionToDispatch)
?? new IAction[0];
// Get any actions generated by side-effects
IEnumerable <IAction> actionsCreatedBySideEffects =
await TriggerEffects(currentActionToDispatch);
// Now execute any new actions
IEnumerable <IAction> allNewActionsToDispatch =
actionsCreatedByMiddlewares.Union(actionsCreatedBySideEffects);
foreach (IAction newActionToDispatch in allNewActionsToDispatch)
{
actionsToDispatch.Enqueue(newActionToDispatch);
}
}
}
