public static async Task <IEvent> Paste(EventPanelViewmodelBase destination, PasteLocation location)
{
return(await Task.Run(() =>
{
var dest = destination.Event;
if (CanPaste(destination, location))
{
var operation = _operation;
using (var enumerator = Clipboard.GetEnumerator())
{
if (!enumerator.MoveNext())
{
return null;
}
dest = _paste(enumerator.Current, dest, location, operation);
while (enumerator.MoveNext())
{
dest = _paste(enumerator.Current, dest, PasteLocation.After, operation);
}
}
}
if (_operation == ClipboardOperation.Cut)
{
Clipboard.Clear();
}
return dest;
}));
}
public static bool CanPaste(EventPanelViewmodelBase destEventVm, PasteLocation location)
{
if (destEventVm?.Event == null)
{
return(false);
}
IEventProperties dest = destEventVm.Event;
var operation = _operation;
var destStartType = dest.StartType;
if (location != PasteLocation.Under &&
(destStartType == TStartType.Manual || destStartType == TStartType.OnFixedTime) &&
Clipboard.Any(e => e.EventType != TEventType.Rundown))
{
return(false);
}
using (var enumerator = Clipboard.GetEnumerator())
{
if (!enumerator.MoveNext())
{
return(false);
}
if (!_canPaste(enumerator.Current, dest, location, operation))
{
return(false);
}
dest = enumerator.Current;
while (enumerator.MoveNext())
{
if (!_canPaste(enumerator.Current, dest, PasteLocation.After, operation))
{
return(false);
}
dest = enumerator.Current;
}
}
return(true);
}
private static bool _canPaste(IEventProperties source, IEventProperties dest, PasteLocation location, ClipboardOperation operation)
{
var sourceEvent = source as IEvent;
var destEvent = dest as IEvent;
if (source == null ||
(operation == ClipboardOperation.Cut && (destEvent == null || sourceEvent?.Engine != destEvent.Engine)) ||
(destEvent != null && !destEvent.HaveRight(EventRight.Create)))
{
return(false);
}
if (location == PasteLocation.Under)
{
if (dest.EventType == TEventType.StillImage)
{
return(false);
}
if ((dest.EventType == TEventType.Movie || dest.EventType == TEventType.Live) && source.EventType != TEventType.StillImage)
{
return(false);
}
if (dest.EventType == TEventType.Rundown && (source.EventType == TEventType.StillImage || destEvent?.SubEventsCount > 0))
{
return(false);
}
if (dest.EventType == TEventType.Container && source.EventType != TEventType.Rundown)
{
return(false);
}
}
if (location == PasteLocation.After || location == PasteLocation.Before)
{
if (!(source.EventType == TEventType.Rundown ||
source.EventType == TEventType.Movie ||
source.EventType == TEventType.Live)
||
!(dest.EventType == TEventType.Rundown ||
dest.EventType == TEventType.Movie ||
dest.EventType == TEventType.Live)
)
{
return(false);
}
}
if (operation == ClipboardOperation.Cut && destEvent.IsContainedIn(sourceEvent))
{
return(false);
}
return(true);
}
static IEvent _paste(IEventProperties source, IEvent dest, PasteLocation location, ClipboardOperation operation)
{
if (operation == ClipboardOperation.Cut)
{
if (source is IEvent sourceEvent)
{
if (sourceEvent.Engine == dest.Engine)
{
sourceEvent.Remove();
switch (location)
{
case PasteLocation.After:
dest.InsertAfter(sourceEvent);
break;
case PasteLocation.Before:
dest.InsertBefore(sourceEvent);
break;
case PasteLocation.Under:
dest.InsertUnder(sourceEvent, false);
break;
}
return(sourceEvent);
}
else
{
//TODO: paste from another engine
throw new NotImplementedException("Event engines are different");
}
}
else
{
throw new InvalidOperationException($"Cannot paste from type: {source?.GetType().Name}");
}
}
else //(operation == ClipboardOperation.Copy)
{
if (source is EventProxy sourceProxy)
{
var mediaFiles = (dest.Engine.MediaManager.MediaDirectoryPRI ?? dest.Engine.MediaManager.MediaDirectorySEC)?.GetAllFiles();
var animationFiles = (dest.Engine.MediaManager.AnimationDirectoryPRI ?? dest.Engine.MediaManager.AnimationDirectorySEC)?.GetAllFiles();
switch (location)
{
case PasteLocation.After:
return(sourceProxy.InsertAfter(dest, mediaFiles, animationFiles));
case PasteLocation.Before:
return(sourceProxy.InsertBefore(dest, mediaFiles, animationFiles));
case PasteLocation.Under:
var newEvent = sourceProxy.InsertUnder(dest, false, mediaFiles, animationFiles);
if (dest.EventType == TEventType.Container)
{
newEvent.ScheduledTime = EventExtensions.DefaultScheduledTime;
}
return(newEvent);
}
throw new InvalidOperationException("Invalid paste location");
}
else
{
throw new InvalidOperationException($"Cannot paste from type: {source?.GetType().Name}");
}
}
}
