using System;
using System.Diagnostics;

namespace UnityEngine.Experimental.UIElements
{
	// Token: 0x0200030C RID: 780
	internal class ClampedDragger : Clickable
	{
		// Token: 0x060031F4 RID: 12788 RVA: 0x0004A178 File Offset: 0x00048378
		public ClampedDragger(Slider slider, Action clickHandler, Action dragHandler)
			: base(clickHandler, 250L, 30L)
		{
			this.dragDirection = ClampedDragger.DragDirection.None;
			this.slider = slider;
			this.dragging += dragHandler;
		}

		// Token: 0x14000025 RID: 37
		// (add) Token: 0x060031F5 RID: 12789 RVA: 0x0004A1A0 File Offset: 0x000483A0
		// (remove) Token: 0x060031F6 RID: 12790 RVA: 0x0004A1D8 File Offset: 0x000483D8
		[field: DebuggerBrowsable(DebuggerBrowsableState.Never)]
		public event Action dragging;

		// Token: 0x17000B52 RID: 2898
		// (get) Token: 0x060031F7 RID: 12791 RVA: 0x0004A210 File Offset: 0x00048410
		// (set) Token: 0x060031F8 RID: 12792 RVA: 0x0004A22C File Offset: 0x0004842C
		public ClampedDragger.DragDirection dragDirection { get; set; }

		// Token: 0x17000B53 RID: 2899
		// (get) Token: 0x060031F9 RID: 12793 RVA: 0x0004A238 File Offset: 0x00048438
		// (set) Token: 0x060031FA RID: 12794 RVA: 0x0004A254 File Offset: 0x00048454
		private Slider slider { get; set; }

		// Token: 0x17000B54 RID: 2900
		// (get) Token: 0x060031FB RID: 12795 RVA: 0x0004A260 File Offset: 0x00048460
		// (set) Token: 0x060031FC RID: 12796 RVA: 0x0004A27C File Offset: 0x0004847C
		public Vector2 startMousePosition { get; private set; }

		// Token: 0x17000B55 RID: 2901
		// (get) Token: 0x060031FD RID: 12797 RVA: 0x0004A288 File Offset: 0x00048488
		public Vector2 delta
		{
			get
			{
				return base.lastMousePosition - this.startMousePosition;
			}
		}

		// Token: 0x060031FE RID: 12798 RVA: 0x0004A2B0 File Offset: 0x000484B0
		public override EventPropagation HandleEvent(Event evt, VisualElement finalTarget)
		{
			EventType type = evt.type;
			if (type != EventType.MouseDown)
			{
				if (type != EventType.MouseDrag)
				{
					if (type == EventType.MouseUp)
					{
						if (base.CanStopManipulation(evt))
						{
							return base.HandleEvent(evt, finalTarget);
						}
					}
				}
				else if (this.HasCapture())
				{
					base.HandleEvent(evt, finalTarget);
					if (this.dragDirection == ClampedDragger.DragDirection.None)
					{
						this.dragDirection = ClampedDragger.DragDirection.Free;
					}
					if (this.dragDirection == ClampedDragger.DragDirection.Free)
					{
						if (this.dragging != null)
						{
							this.dragging();
						}
					}
					return EventPropagation.Stop;
				}
			}
			else if (base.CanStartManipulation(evt))
			{
				this.startMousePosition = evt.mousePosition;
				this.dragDirection = ClampedDragger.DragDirection.None;
				base.HandleEvent(evt, finalTarget);
				return EventPropagation.Stop;
			}
			return EventPropagation.Continue;
		}

		// Token: 0x0200030D RID: 781
		[Flags]
		public enum DragDirection
		{
			// Token: 0x04000A0F RID: 2575
			None = 0,
			// Token: 0x04000A10 RID: 2576
			LowToHigh = 1,
			// Token: 0x04000A11 RID: 2577
			HighToLow = 2,
			// Token: 0x04000A12 RID: 2578
			Free = 4
		}
	}
}