public State Reduce(State state, StateAction action)
{
if (!(action.Reducer is PageInitReducer))
{
return(state);
}
var definitionKey = PageConst.StateDefinitionKey;
var stackKey = PageConst.StateStackKey;
var definition = action.GetValue <PageDefinition>();
if (state.Get(stackKey).IsNull() || state.Get(definitionKey).IsNull())
{
var pageStack = new PageStack();
pageStack.Push(new Page {
Name = definition.RootPageName, Data = null
});
state.Set(definitionKey, new Any(definition));
state.Set(stackKey, new Any(pageStack));
// load permanent scenes
PageReducerUtility.ChangeScenes(state, definition.PermanentScenes, true);
state.NotifyValue(SceneConst.StateKey);
}
return(state);
}
public State Reduce(State state, StateAction action)
{
if (!(action.Reducer is PagePushReducer))
{
return(state);
}
if (!action.IsValueOf <Page>())
{
throw new ArgumentException($"StateAction.Value ({action.Value.Type}) is not type of Page");
}
var definition = state.GetValue <PageDefinition>(PageConst.StateDefinitionKey);
var stack = state.GetValue <PageStack>(PageConst.StateStackKey);
var nextPage = action.GetValue <Page>();
var nextPageScene = definition.GetPageScene(nextPage?.Name);
var previousPage = stack.Peek();
var previousPageScene = definition.GetPageScene(previousPage?.Name);
stack.Push(nextPage);
if (previousPageScene != null)
{
PageReducerUtility.ChangeScenes(state, previousPageScene.Scenes, false);
}
else
{
var scenes =
PageReducerUtility.GetCleanUpScenes(state, nextPageScene.Scenes, definition.PermanentScenes);
PageReducerUtility.ChangeScenes(state, scenes, false);
}
if (nextPageScene != null)
{
PageReducerUtility.ChangeScenes(state, nextPageScene.Scenes, true);
}
state.NotifyValue(SceneConst.StateKey);
state.NotifyValue(PageConst.StateStackKey);
return(state);
}
