using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine.CSSLayout;
using UnityEngine.Experimental.UIElements.StyleEnums;
using UnityEngine.Experimental.UIElements.StyleSheets;
using UnityEngine.StyleSheets;

namespace UnityEngine.Experimental.UIElements
{
	// Token: 0x02000356 RID: 854
	public class VisualContainer : VisualElement, IEnumerable<VisualElement>, IEnumerable
	{
		// Token: 0x0600342D RID: 13357 RVA: 0x00053A4C File Offset: 0x00051C4C
		public VisualContainer()
		{
			this.clipChildren = true;
			base.cssNode.SetMeasureFunction(null);
		}

		// Token: 0x17000BEA RID: 3050
		// (get) Token: 0x0600342E RID: 13358 RVA: 0x00053A74 File Offset: 0x00051C74
		internal IEnumerable<StyleSheet> styleSheets
		{
			get
			{
				if (this.m_StyleSheets == null)
				{
					this.LoadStyleSheetsFromPaths();
					if (this.m_StyleSheets == null)
					{
						this.m_StyleSheets = new List<StyleSheet>();
					}
				}
				return this.m_StyleSheets;
			}
		}

		// Token: 0x17000BEB RID: 3051
		// (get) Token: 0x0600342F RID: 13359 RVA: 0x00053ABC File Offset: 0x00051CBC
		// (set) Token: 0x06003430 RID: 13360 RVA: 0x00053AD8 File Offset: 0x00051CD8
		public bool clipChildren { get; set; }

		// Token: 0x17000BEC RID: 3052
		// (get) Token: 0x06003431 RID: 13361 RVA: 0x00053AE4 File Offset: 0x00051CE4
		public int childrenCount
		{
			get
			{
				return this.m_Children.Count;
			}
		}

		// Token: 0x17000BED RID: 3053
		// (get) Token: 0x06003432 RID: 13362 RVA: 0x00053B04 File Offset: 0x00051D04
		// (set) Token: 0x06003433 RID: 13363 RVA: 0x00053B2C File Offset: 0x00051D2C
		public FlexDirection flexDirection
		{
			get
			{
				return (FlexDirection)this.m_Styles.flexDirection.value;
			}
			set
			{
				base.EnsureInlineStyles();
				this.m_Styles.flexDirection = Style<int>.Create((int)value);
				base.cssNode.FlexDirection = (CSSFlexDirection)value;
			}
		}

		// Token: 0x17000BEE RID: 3054
		// (get) Token: 0x06003434 RID: 13364 RVA: 0x00053B54 File Offset: 0x00051D54
		// (set) Token: 0x06003435 RID: 13365 RVA: 0x00053B7C File Offset: 0x00051D7C
		public Align alignItems
		{
			get
			{
				return (Align)this.m_Styles.alignItems.value;
			}
			set
			{
				base.EnsureInlineStyles();
				this.m_Styles.alignItems = Style<int>.Create((int)value);
				base.cssNode.AlignItems = (CSSAlign)value;
			}
		}

		// Token: 0x17000BEF RID: 3055
		// (get) Token: 0x06003436 RID: 13366 RVA: 0x00053BA4 File Offset: 0x00051DA4
		// (set) Token: 0x06003437 RID: 13367 RVA: 0x00053BCC File Offset: 0x00051DCC
		public Align alignContent
		{
			get
			{
				return (Align)this.m_Styles.alignContent.value;
			}
			set
			{
				base.EnsureInlineStyles();
				this.m_Styles.alignContent = Style<int>.Create((int)value);
				base.cssNode.AlignContent = (CSSAlign)value;
			}
		}

		// Token: 0x17000BF0 RID: 3056
		// (get) Token: 0x06003438 RID: 13368 RVA: 0x00053BF4 File Offset: 0x00051DF4
		// (set) Token: 0x06003439 RID: 13369 RVA: 0x00053C1C File Offset: 0x00051E1C
		public Justify justifyContent
		{
			get
			{
				return (Justify)this.m_Styles.justifyContent.value;
			}
			set
			{
				base.EnsureInlineStyles();
				this.m_Styles.justifyContent = Style<int>.Create((int)value);
				base.cssNode.JustifyContent = (CSSJustify)value;
			}
		}

		// Token: 0x17000BF1 RID: 3057
		// (get) Token: 0x0600343A RID: 13370 RVA: 0x00053C44 File Offset: 0x00051E44
		// (set) Token: 0x0600343B RID: 13371 RVA: 0x00053C6C File Offset: 0x00051E6C
		public Wrap flexWrap
		{
			get
			{
				return (Wrap)this.m_Styles.flexWrap.value;
			}
			set
			{
				base.EnsureInlineStyles();
				this.m_Styles.flexWrap = Style<int>.Create((int)value);
				base.cssNode.Wrap = (CSSWrap)value;
			}
		}

		// Token: 0x0600343C RID: 13372 RVA: 0x00053C94 File Offset: 0x00051E94
		public VisualContainer.Enumerator GetEnumerator()
		{
			return new VisualContainer.Enumerator(ref this.m_Children);
		}

		// Token: 0x0600343D RID: 13373 RVA: 0x00053CB4 File Offset: 0x00051EB4
		IEnumerator<VisualElement> IEnumerable<VisualElement>.GetEnumerator()
		{
			return this.GetEnumerator();
		}

		// Token: 0x0600343E RID: 13374 RVA: 0x00053CD4 File Offset: 0x00051ED4
		IEnumerator IEnumerable.GetEnumerator()
		{
			return this.GetEnumerator();
		}

		// Token: 0x0600343F RID: 13375 RVA: 0x00053CF4 File Offset: 0x00051EF4
		internal override void ChangePanel(BaseVisualElementPanel p)
		{
			if (p != base.panel)
			{
				base.ChangePanel(p);
				this.m_StyleSheets = null;
				base.Dirty(ChangeType.Styles);
				for (int i = 0; i < this.m_Children.Count; i++)
				{
					this.m_Children[i].ChangePanel(p);
				}
			}
		}

		// Token: 0x06003440 RID: 13376 RVA: 0x00053D58 File Offset: 0x00051F58
		public void AddChild(VisualElement child)
		{
			if (child == null)
			{
				throw new ArgumentException("Cannot add null child");
			}
			if (child.parent != null)
			{
				child.parent.RemoveChild(child);
			}
			child.parent = this;
			this.m_Children.Add(child);
			base.cssNode.Insert(base.cssNode.Count, child.cssNode);
			child.Dirty(ChangeType.Styles);
			child.PropagateChangesToParents();
		}

		// Token: 0x06003441 RID: 13377 RVA: 0x00053DCC File Offset: 0x00051FCC
		public void InsertChild(int index, VisualElement child)
		{
			if (child == null)
			{
				throw new ArgumentException("Cannot insert null child");
			}
			if (index > this.m_Children.Count)
			{
				throw new IndexOutOfRangeException("Index out of range: " + index);
			}
			if (child.parent != null)
			{
				child.parent.RemoveChild(child);
			}
			child.parent = this;
			this.m_Children.Insert(index, child);
			base.cssNode.Insert(index, child.cssNode);
			child.Dirty(ChangeType.Styles);
			child.PropagateChangesToParents();
		}

		// Token: 0x06003442 RID: 13378 RVA: 0x00053E60 File Offset: 0x00052060
		public void RemoveChild(VisualElement child)
		{
			if (child == null)
			{
				throw new ArgumentException("Cannot add null child");
			}
			if (child.parent != this)
			{
				throw new ArgumentException("This visualElement is not my child");
			}
			child.parent = null;
			this.m_Children.Remove(child);
			base.cssNode.RemoveAt(base.cssNode.IndexOf(child.cssNode));
		}

		// Token: 0x06003443 RID: 13379 RVA: 0x00053EC8 File Offset: 0x000520C8
		public void RemoveChildAt(int index)
		{
			if (index < 0 || index >= this.m_Children.Count)
			{
				throw new IndexOutOfRangeException("Index out of range: " + index);
			}
			VisualElement visualElement = this.m_Children[index];
			visualElement.parent = null;
			this.m_Children.RemoveAt(index);
			base.cssNode.RemoveAt(index);
		}

		// Token: 0x06003444 RID: 13380 RVA: 0x00053F30 File Offset: 0x00052130
		public void ClearChildren()
		{
			for (int i = 0; i < this.m_Children.Count; i++)
			{
				this.m_Children[i].parent = null;
			}
			this.m_Children.Clear();
			base.cssNode.Clear();
		}

		// Token: 0x06003445 RID: 13381 RVA: 0x00053F84 File Offset: 0x00052184
		public VisualElement GetChildAt(int index)
		{
			return this.m_Children[index];
		}

		// Token: 0x06003446 RID: 13382 RVA: 0x00053FA8 File Offset: 0x000521A8
		public bool ContainsChild(VisualElement elem)
		{
			for (int i = 0; i < this.m_Children.Count; i++)
			{
				if (this.m_Children[i] == elem)
				{
					return true;
				}
			}
			return false;
		}

		// Token: 0x06003447 RID: 13383 RVA: 0x00053FF8 File Offset: 0x000521F8
		public void AddStyleSheetPath(string sheetPath)
		{
			if (this.m_StyleSheetPaths == null)
			{
				this.m_StyleSheetPaths = new List<string>();
			}
			this.m_StyleSheetPaths.Add(sheetPath);
			this.m_StyleSheets = null;
			base.Dirty(ChangeType.Styles);
		}

		// Token: 0x06003448 RID: 13384 RVA: 0x00054030 File Offset: 0x00052230
		public void RemoveStyleSheetPath(string sheetPath)
		{
			if (this.m_StyleSheetPaths == null)
			{
				Debug.LogWarning("Attempting to remove from null style sheet path list");
			}
			else
			{
				this.m_StyleSheetPaths.Remove(sheetPath);
				this.m_StyleSheets = null;
				base.Dirty(ChangeType.Styles);
			}
		}

		// Token: 0x06003449 RID: 13385 RVA: 0x0005406C File Offset: 0x0005226C
		public bool HasStyleSheetPath(string sheetPath)
		{
			return this.m_StyleSheetPaths != null && this.m_StyleSheetPaths.Contains(sheetPath);
		}

		// Token: 0x0600344A RID: 13386 RVA: 0x0005409C File Offset: 0x0005229C
		internal void LoadStyleSheetsFromPaths()
		{
			if (this.m_StyleSheetPaths != null && base.elementPanel != null)
			{
				this.m_StyleSheets = new List<StyleSheet>();
				foreach (string text in this.m_StyleSheetPaths)
				{
					StyleSheet styleSheet = base.elementPanel.loadResourceFunc(text, typeof(StyleSheet)) as StyleSheet;
					if (styleSheet != null)
					{
						int i = 0;
						int num = styleSheet.complexSelectors.Length;
						while (i < num)
						{
							styleSheet.complexSelectors[i].CachePseudoStateMasks();
							i++;
						}
						this.m_StyleSheets.Add(styleSheet);
					}
					else
					{
						Debug.LogWarning(string.Format("Style sheet not found for path \"{0}\"", text));
					}
				}
			}
		}

		// Token: 0x04000B07 RID: 2823
		private List<VisualElement> m_Children = new List<VisualElement>();

		// Token: 0x04000B08 RID: 2824
		private List<StyleSheet> m_StyleSheets;

		// Token: 0x04000B09 RID: 2825
		private List<string> m_StyleSheetPaths;

		// Token: 0x02000357 RID: 855
		public struct Enumerator : IEnumerator<VisualElement>, IDisposable, IEnumerator
		{
			// Token: 0x0600344B RID: 13387 RVA: 0x0005419C File Offset: 0x0005239C
			public Enumerator(ref List<VisualElement> list)
			{
				this.m_Enumerator = list.GetEnumerator();
			}

			// Token: 0x0600344C RID: 13388 RVA: 0x000541AC File Offset: 0x000523AC
			public void Dispose()
			{
				this.m_Enumerator.Dispose();
			}

			// Token: 0x0600344D RID: 13389 RVA: 0x000541BC File Offset: 0x000523BC
			public void Reset()
			{
				((IEnumerator)this.m_Enumerator).Reset();
			}

			// Token: 0x0600344E RID: 13390 RVA: 0x000541D0 File Offset: 0x000523D0
			public bool MoveNext()
			{
				return this.m_Enumerator.MoveNext();
			}

			// Token: 0x17000BF3 RID: 3059
			// (get) Token: 0x0600344F RID: 13391 RVA: 0x000541F0 File Offset: 0x000523F0
			public VisualElement Current
			{
				get
				{
					return this.m_Enumerator.Current;
				}
			}

			// Token: 0x17000BF2 RID: 3058
			// (get) Token: 0x06003450 RID: 13392 RVA: 0x00054210 File Offset: 0x00052410
			object IEnumerator.Current
			{
				get
				{
					return this.Current;
				}
			}

			// Token: 0x04000B0B RID: 2827
			private List<VisualElement>.Enumerator m_Enumerator;
		}
	}
}