using CPF.Mac.CoreGraphics;
using CPF.Mac.Foundation;
using CPF.Mac.ObjCRuntime;
using System;
using System.ComponentModel;

namespace CPF.Mac.AppKit
{
	[Register("NSDragDestination", true)]
	public class NSDraggingInfo : NSObject
	{
		private static readonly IntPtr selDraggingDestinationWindowHandle = Selector.GetHandle("draggingDestinationWindow");

		private static readonly IntPtr selDraggingSourceOperationMaskHandle = Selector.GetHandle("draggingSourceOperationMask");

		private static readonly IntPtr selDraggingLocationHandle = Selector.GetHandle("draggingLocation");

		private static readonly IntPtr selDraggedImageLocationHandle = Selector.GetHandle("draggedImageLocation");

		private static readonly IntPtr selDraggedImageHandle = Selector.GetHandle("draggedImage");

		private static readonly IntPtr selDraggingPasteboardHandle = Selector.GetHandle("draggingPasteboard");

		private static readonly IntPtr selDraggingSourceHandle = Selector.GetHandle("draggingSource");

		private static readonly IntPtr selDraggingSequenceNumberHandle = Selector.GetHandle("draggingSequenceNumber");

		private static readonly IntPtr selAnimatesToDestinationHandle = Selector.GetHandle("animatesToDestination");

		private static readonly IntPtr selSetAnimatesToDestination_Handle = Selector.GetHandle("setAnimatesToDestination:");

		private static readonly IntPtr selNumberOfValidItemsForDropHandle = Selector.GetHandle("numberOfValidItemsForDrop");

		private static readonly IntPtr selSetNumberOfValidItemsForDrop_Handle = Selector.GetHandle("setNumberOfValidItemsForDrop:");

		private static readonly IntPtr selDraggingFormationHandle = Selector.GetHandle("draggingFormation");

		private static readonly IntPtr selSetDraggingFormation_Handle = Selector.GetHandle("setDraggingFormation:");

		private static readonly IntPtr selSlideDraggedImageTo_Handle = Selector.GetHandle("slideDraggedImageTo:");

		private static readonly IntPtr selNamesOfPromisedFilesDroppedAtDestination_Handle = Selector.GetHandle("namesOfPromisedFilesDroppedAtDestination:");

		private static readonly IntPtr selEnumerateDraggingItemsWithOptionsForViewClassesSearchOptionsUsingBlock_Handle = Selector.GetHandle("enumerateDraggingItemsWithOptions:forView:classes:searchOptions:usingBlock:");

		private static readonly IntPtr class_ptr = Class.GetHandle("NSDragDestination");

		private object __mt_DraggingDestinationWindow_var;

		private object __mt_DraggedImage_var;

		private object __mt_DraggingPasteboard_var;

		private object __mt_DraggingSource_var;

		public override IntPtr ClassHandle => class_ptr;

		public virtual NSWindow DraggingDestinationWindow
		{
			[Export("draggingDestinationWindow")]
			get
			{
				NSApplication.EnsureUIThread();
				return (NSWindow)(__mt_DraggingDestinationWindow_var = ((!IsDirectBinding) ? ((NSWindow)Runtime.GetNSObject(Messaging.IntPtr_objc_msgSendSuper(base.SuperHandle, selDraggingDestinationWindowHandle))) : ((NSWindow)Runtime.GetNSObject(Messaging.IntPtr_objc_msgSend(base.Handle, selDraggingDestinationWindowHandle)))));
			}
		}

		public virtual NSDragOperation DraggingSourceOperationMask
		{
			[Export("draggingSourceOperationMask")]
			get
			{
				NSApplication.EnsureUIThread();
				if (IsDirectBinding)
				{
					return (NSDragOperation)Messaging.UInt64_objc_msgSend(base.Handle, selDraggingSourceOperationMaskHandle);
				}
				return (NSDragOperation)Messaging.UInt64_objc_msgSendSuper(base.SuperHandle, selDraggingSourceOperationMaskHandle);
			}
		}

		public virtual CGPoint DraggingLocation
		{
			[Export("draggingLocation")]
			get
			{
				NSApplication.EnsureUIThread();
				if (IsDirectBinding)
				{
					return Messaging.CGPoint_objc_msgSend(base.Handle, selDraggingLocationHandle);
				}
				return Messaging.CGPoint_objc_msgSendSuper(base.SuperHandle, selDraggingLocationHandle);
			}
		}

		public virtual CGPoint DraggedImageLocation
		{
			[Export("draggedImageLocation")]
			get
			{
				NSApplication.EnsureUIThread();
				if (IsDirectBinding)
				{
					return Messaging.CGPoint_objc_msgSend(base.Handle, selDraggedImageLocationHandle);
				}
				return Messaging.CGPoint_objc_msgSendSuper(base.SuperHandle, selDraggedImageLocationHandle);
			}
		}

		public virtual NSImage DraggedImage
		{
			[Export("draggedImage")]
			get
			{
				NSApplication.EnsureUIThread();
				return (NSImage)(__mt_DraggedImage_var = ((!IsDirectBinding) ? ((NSImage)Runtime.GetNSObject(Messaging.IntPtr_objc_msgSendSuper(base.SuperHandle, selDraggedImageHandle))) : ((NSImage)Runtime.GetNSObject(Messaging.IntPtr_objc_msgSend(base.Handle, selDraggedImageHandle)))));
			}
		}

		public virtual NSPasteboard DraggingPasteboard
		{
			[Export("draggingPasteboard")]
			get
			{
				NSApplication.EnsureUIThread();
				return (NSPasteboard)(__mt_DraggingPasteboard_var = ((!IsDirectBinding) ? ((NSPasteboard)Runtime.GetNSObject(Messaging.IntPtr_objc_msgSendSuper(base.SuperHandle, selDraggingPasteboardHandle))) : ((NSPasteboard)Runtime.GetNSObject(Messaging.IntPtr_objc_msgSend(base.Handle, selDraggingPasteboardHandle)))));
			}
		}

		public virtual NSObject DraggingSource
		{
			[Export("draggingSource")]
			get
			{
				NSApplication.EnsureUIThread();
				return (NSObject)(__mt_DraggingSource_var = ((!IsDirectBinding) ? Runtime.GetNSObject(Messaging.IntPtr_objc_msgSendSuper(base.SuperHandle, selDraggingSourceHandle)) : Runtime.GetNSObject(Messaging.IntPtr_objc_msgSend(base.Handle, selDraggingSourceHandle))));
			}
		}

		public virtual long DraggingSequenceNumber
		{
			[Export("draggingSequenceNumber")]
			get
			{
				NSApplication.EnsureUIThread();
				if (IsDirectBinding)
				{
					return Messaging.Int64_objc_msgSend(base.Handle, selDraggingSequenceNumberHandle);
				}
				return Messaging.Int64_objc_msgSendSuper(base.SuperHandle, selDraggingSequenceNumberHandle);
			}
		}

		public virtual bool AnimatesToDestination
		{
			[Export("animatesToDestination")]
			get
			{
				NSApplication.EnsureUIThread();
				if (IsDirectBinding)
				{
					return Messaging.bool_objc_msgSend(base.Handle, selAnimatesToDestinationHandle);
				}
				return Messaging.bool_objc_msgSendSuper(base.SuperHandle, selAnimatesToDestinationHandle);
			}
			[Export("setAnimatesToDestination:")]
			set
			{
				NSApplication.EnsureUIThread();
				if (IsDirectBinding)
				{
					Messaging.void_objc_msgSend_bool(base.Handle, selSetAnimatesToDestination_Handle, value);
				}
				else
				{
					Messaging.void_objc_msgSendSuper_bool(base.SuperHandle, selSetAnimatesToDestination_Handle, value);
				}
			}
		}

		public virtual long NumberOfValidItemsForDrop
		{
			[Export("numberOfValidItemsForDrop")]
			get
			{
				NSApplication.EnsureUIThread();
				if (IsDirectBinding)
				{
					return Messaging.Int64_objc_msgSend(base.Handle, selNumberOfValidItemsForDropHandle);
				}
				return Messaging.Int64_objc_msgSendSuper(base.SuperHandle, selNumberOfValidItemsForDropHandle);
			}
			[Export("setNumberOfValidItemsForDrop:")]
			set
			{
				NSApplication.EnsureUIThread();
				if (IsDirectBinding)
				{
					Messaging.void_objc_msgSend_Int64(base.Handle, selSetNumberOfValidItemsForDrop_Handle, value);
				}
				else
				{
					Messaging.void_objc_msgSendSuper_Int64(base.SuperHandle, selSetNumberOfValidItemsForDrop_Handle, value);
				}
			}
		}

		public virtual NSDraggingFormation DraggingFormation
		{
			[Export("draggingFormation")]
			get
			{
				NSApplication.EnsureUIThread();
				if (IsDirectBinding)
				{
					return (NSDraggingFormation)Messaging.Int64_objc_msgSend(base.Handle, selDraggingFormationHandle);
				}
				return (NSDraggingFormation)Messaging.Int64_objc_msgSendSuper(base.SuperHandle, selDraggingFormationHandle);
			}
			[Export("setDraggingFormation:")]
			set
			{
				NSApplication.EnsureUIThread();
				if (IsDirectBinding)
				{
					Messaging.void_objc_msgSend_Int64(base.Handle, selSetDraggingFormation_Handle, (long)value);
				}
				else
				{
					Messaging.void_objc_msgSendSuper_Int64(base.SuperHandle, selSetDraggingFormation_Handle, (long)value);
				}
			}
		}

		[EditorBrowsable(EditorBrowsableState.Advanced)]
		[Export("init")]
		public NSDraggingInfo()
			: base(NSObjectFlag.Empty)
		{
			if (IsDirectBinding)
			{
				base.Handle = Messaging.IntPtr_objc_msgSend(base.Handle, Selector.Init);
			}
			else
			{
				base.Handle = Messaging.IntPtr_objc_msgSendSuper(base.SuperHandle, Selector.Init);
			}
		}

		[EditorBrowsable(EditorBrowsableState.Advanced)]
		[Export("initWithCoder:")]
		public NSDraggingInfo(NSCoder coder)
			: base(NSObjectFlag.Empty)
		{
			if (IsDirectBinding)
			{
				base.Handle = Messaging.IntPtr_objc_msgSend_IntPtr(base.Handle, Selector.InitWithCoder, coder.Handle);
			}
			else
			{
				base.Handle = Messaging.IntPtr_objc_msgSendSuper_IntPtr(base.SuperHandle, Selector.InitWithCoder, coder.Handle);
			}
		}

		[EditorBrowsable(EditorBrowsableState.Advanced)]
		public NSDraggingInfo(NSObjectFlag t)
			: base(t)
		{
		}

		[EditorBrowsable(EditorBrowsableState.Advanced)]
		public NSDraggingInfo(IntPtr handle)
			: base(handle)
		{
		}

		[Export("slideDraggedImageTo:")]
		public virtual void SlideDraggedImageTo(CGPoint screenPoint)
		{
			NSApplication.EnsureUIThread();
			if (IsDirectBinding)
			{
				Messaging.void_objc_msgSend_CGPoint(base.Handle, selSlideDraggedImageTo_Handle, screenPoint);
			}
			else
			{
				Messaging.void_objc_msgSendSuper_CGPoint(base.SuperHandle, selSlideDraggedImageTo_Handle, screenPoint);
			}
		}

		[Export("namesOfPromisedFilesDroppedAtDestination:")]
		public virtual string[] PromisedFilesDroppedAtDestination(NSUrl dropDestination)
		{
			NSApplication.EnsureUIThread();
			if (dropDestination == null)
			{
				throw new ArgumentNullException("dropDestination");
			}
			if (IsDirectBinding)
			{
				return NSArray.StringArrayFromHandle(Messaging.IntPtr_objc_msgSend_IntPtr(base.Handle, selNamesOfPromisedFilesDroppedAtDestination_Handle, dropDestination.Handle));
			}
			return NSArray.StringArrayFromHandle(Messaging.IntPtr_objc_msgSendSuper_IntPtr(base.SuperHandle, selNamesOfPromisedFilesDroppedAtDestination_Handle, dropDestination.Handle));
		}

		[Export("enumerateDraggingItemsWithOptions:forView:classes:searchOptions:usingBlock:")]
		public unsafe virtual void EnumerateDraggingItems(NSDraggingItemEnumerationOptions enumOpts, NSView view, NSPasteboardReading[] classArray, NSDictionary searchOptions, NSDraggingEnumerator enumerator)
		{
			NSApplication.EnsureUIThread();
			if (view == null)
			{
				throw new ArgumentNullException("view");
			}
			if (classArray == null)
			{
				throw new ArgumentNullException("classArray");
			}
			if (searchOptions == null)
			{
				throw new ArgumentNullException("searchOptions");
			}
			if (enumerator == null)
			{
				throw new ArgumentNullException("enumerator");
			}
			NSArray nSArray = NSArray.FromNSObjects(classArray);
			BlockLiteral blockLiteral = default(BlockLiteral);
			BlockLiteral* ptr = &blockLiteral;
			blockLiteral.SetupBlock(Trampolines.SDNSDraggingEnumerator.Handler, enumerator);
			if (IsDirectBinding)
			{
				Messaging.void_objc_msgSend_UInt64_IntPtr_IntPtr_IntPtr_IntPtr(base.Handle, selEnumerateDraggingItemsWithOptionsForViewClassesSearchOptionsUsingBlock_Handle, (ulong)enumOpts, view.Handle, nSArray.Handle, searchOptions.Handle, (IntPtr)(void*)ptr);
			}
			else
			{
				Messaging.void_objc_msgSendSuper_UInt64_IntPtr_IntPtr_IntPtr_IntPtr(base.SuperHandle, selEnumerateDraggingItemsWithOptionsForViewClassesSearchOptionsUsingBlock_Handle, (ulong)enumOpts, view.Handle, nSArray.Handle, searchOptions.Handle, (IntPtr)(void*)ptr);
			}
			nSArray.Dispose();
			ptr->CleanupBlock();
		}

		protected override void Dispose(bool disposing)
		{
			base.Dispose(disposing);
			if (base.Handle == IntPtr.Zero)
			{
				__mt_DraggingDestinationWindow_var = null;
				__mt_DraggedImage_var = null;
				__mt_DraggingPasteboard_var = null;
				__mt_DraggingSource_var = null;
			}
		}
	}
}
