public static bool CanLock(Authentication authentication, ILockableDescriptor descriptor)
{
if (descriptor.LockInfo.IsLocked == true && descriptor.LockInfo.IsInherited == false)
{
return(false);
}
return(authentication.Authority == Authority.Admin || authentication.Authority == Authority.Member);
}
public static bool CanUnlock(Authentication authentication, ILockableDescriptor descriptor)
{
if (descriptor.LockInfo.IsLocked == false || descriptor.LockInfo.IsInherited == true)
{
return(false);
}
return(descriptor.LockInfo.IsOwner(authentication.ID) == true);
}
public static async Task <bool> UnlockAsync(Authentication authentication, ILockableDescriptor descriptor)
{
if (descriptor.Target is ILockable lockable)
{
var dispatcher = lockable is IDispatcherObject dispatcherObject ? dispatcherObject.Dispatcher : Application.Current.Dispatcher;
try
{
await dispatcher.InvokeAsync(() => lockable.Unlock(authentication));
return(true);
}
catch (Exception e)
{
AppMessageBox.ShowError(e);
return(false);
}
}
else
{
throw new NotImplementedException();
}
}
public static async Task <bool> UnlockAsync(Authentication authentication, ILockableDescriptor descriptor)
{
if (descriptor.Target is ILockable lockable)
{
try
{
await lockable.UnlockAsync(authentication);
return(true);
}
catch (Exception e)
{
await AppMessageBox.ShowErrorAsync(e);
return(false);
}
}
else
{
throw new NotImplementedException();
}
}
public override void SelectObject(object obj)
{
this.Detach();
this.descriptor = obj as ILockableDescriptor;
this.Attach();
}
public static async Task <bool> LockAsync(Authentication authentication, ILockableDescriptor descriptor)
{
var dialog = await LockLockableViewModel.CreateInstanceAsync(authentication, descriptor);
return(dialog?.ShowDialog() == true);
}
public static bool IsLockInherited(Authentication authentication, ILockableDescriptor descriptor)
{
return(descriptor.LockInfo.IsInherited);
}
public static bool IsLockOwner(Authentication authentication, ILockableDescriptor descriptor)
{
return(descriptor.LockInfo.IsOwner(authentication.ID));
}
public static async Task <LockLockableViewModel> CreateInstanceAsync(Authentication authentication, ILockableDescriptor descriptor)
{
if (authentication == null)
{
throw new ArgumentNullException(nameof(authentication));
}
if (descriptor == null)
{
throw new ArgumentNullException(nameof(descriptor));
}
if (descriptor.Target is ILockable lockable)
{
var dispatcher = lockable is IDispatcherObject dispatcherObject ? dispatcherObject.Dispatcher : Application.Current.Dispatcher;
return(await dispatcher.InvokeAsync(() =>
{
return new LockLockableViewModel(authentication, lockable);
}));
}
else
{
throw new ArgumentException("Invalid Target of Descriptor", nameof(descriptor));
}
}
public static async Task <LockLockableViewModel> CreateInstanceAsync(Authentication authentication, ILockableDescriptor descriptor)
{
if (authentication == null)
{
throw new ArgumentNullException(nameof(authentication));
}
if (descriptor == null)
{
throw new ArgumentNullException(nameof(descriptor));
}
if (descriptor.Target is ILockable lockable && lockable is IDispatcherObject dispatcherObject)
{
return(await dispatcherObject.Dispatcher.InvokeAsync(() =>
{
return new LockLockableViewModel(authentication, lockable);
}));
}