public static StorageHub <TToken, TValue> CreateXmlDatacontractFileStorageHub(
Func <TToken, string> fileNameFactory,
string folder = null,
Func <Task <TToken[]> > storageTokensSelector = null)
{
var hub = new XmlDataContractStreamStorageHub <TToken, TValue>(
async(tp, tk) =>
{
folder = folder ?? Environment.CurrentDirectory;
var filepath = Path.Combine(folder, fileNameFactory(tk));
switch (tp)
{
case StreamOpenType.Read:
return(await TaskExHelper.FromResult(new FileStream(filepath, FileMode.OpenOrCreate, FileAccess.Read, FileShare.Read)));
case StreamOpenType.Write:
return(await TaskExHelper.FromResult(new FileStream(filepath, FileMode.Create, FileAccess.Write, FileShare.ReadWrite)));
default:
return(null);
}
},
storageTokensSelector
);
return(hub);
}
public async Task <ShowAwaitableResult <TTarget> > ShowAndGetViewModelImmediately <TTarget>(TTarget targetViewModel = null, string viewMappingKey = null) where TTarget : class, IViewModel
{
var vm = targetViewModel ?? ServiceLocator.Instance.Resolve <TTarget>(viewMappingKey);
var vmt = InternalTestShow(vm, viewMappingKey);
return(await TaskExHelper.FromResult(new ShowAwaitableResult <TTarget>() { Closing = vm.WaitForClose(), ViewModel = vm }));
}
public async Task <ShowAwaitableResult <TTarget> > ShowAndGetViewModel <TTarget>(TTarget targetViewModel = null, string viewMappingKey = null)
where TTarget : class, IViewModel
{
IView view = null;
view = InternalLocateViewIfNotSet <TTarget>(targetViewModel, viewMappingKey, view);
targetViewModel = targetViewModel ?? view.ViewModel as TTarget;
InternalShowView(view, Target, _navigator.CurrentBindingView.ViewModel);
return(await TaskExHelper.FromResult(new ShowAwaitableResult <TTarget> {
Closing = targetViewModel.WaitForClose(), ViewModel = targetViewModel
}));
}
public async Task <TService> ResolveAsync <TService>(string name = null, object paremeter = null)
{
name = name ?? "";
var subdic = ServiceTypedCache <TService> .dic;
ServiceLocatorEntryStruct <TService> entry = null;
if (subdic.TryGetValue(name, out entry))
{
return(await entry.GetServiceAsync());
}
else
{
//#if SILVERLIGHT_5||WINDOWS_PHONE_7
// return await T.askEx.FromResult(default(TService));
//#else
// return await T.ask.FromResult(default(TService));
//#endif
return(await TaskExHelper.FromResult(default(TService)));
}
}
/// <summary>
/// Show a view model and return the view model after leave view.
/// </summary>
/// <typeparam name="TTarget">view model type</typeparam>
/// <param name="targetViewModel">view model instance</param>
/// <param name="viewMappingKey">mapping key</param>
/// <returns></returns>
public async Task <ShowAwaitableResult <TTarget> > ShowAndGetViewModelImmediately <TTarget>(TTarget targetViewModel = null, string viewMappingKey = null)
where TTarget : class, IViewModel
{
IView view = null;
view = InternalLocateViewIfNotSet <TTarget>(targetViewModel, viewMappingKey, view);
targetViewModel = targetViewModel ?? view.ViewModel as TTarget;
if (view.ViewType == ViewType.Page)
{
var mvpg = view as MVVMPage;
mvpg.Frame = Frame;
}
SetVMAfterLoad(targetViewModel, view);
InternalShowView(view, Target, _navigator.CurrentBindingView.ViewModel);
return(await TaskExHelper.FromResult(new ShowAwaitableResult <TTarget> {
Closing = targetViewModel.WaitForClose(), ViewModel = targetViewModel
}));
}
private async Task <bool> FileExists(string fileAName)
{
var p = Path.Combine(Environment.CurrentDirectory, fileAName);
return(await TaskExHelper.FromResult(File.Exists(p)));
}