using UnityEngine;
using UnityEngine.EventSystems;

namespace TMPro.Examples
{
	public class TMP_TextSelector_A : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler, IEventSystemHandler
	{
		private TextMeshPro m_TextMeshPro;

		private Camera m_Camera;

		private bool m_isHoveringObject;

		private int m_selectedLink = -1;

		private int m_lastCharIndex = -1;

		private int m_lastWordIndex = -1;

		private void Awake()
		{
			m_TextMeshPro = base.gameObject.GetComponent<TextMeshPro>();
			m_Camera = Camera.main;
			m_TextMeshPro.ForceMeshUpdate();
		}

		private void LateUpdate()
		{
			m_isHoveringObject = false;
			if (TMP_TextUtilities.IsIntersectingRectTransform(m_TextMeshPro.rectTransform, Input.mousePosition, Camera.main))
			{
				m_isHoveringObject = true;
			}
			if (!m_isHoveringObject)
			{
				return;
			}
			int num = TMP_TextUtilities.FindIntersectingCharacter(m_TextMeshPro, Input.mousePosition, Camera.main, true);
			if (num != -1 && num != m_lastCharIndex && (Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift)))
			{
				m_lastCharIndex = num;
				int materialReferenceIndex = m_TextMeshPro.textInfo.characterInfo[num].materialReferenceIndex;
				int vertexIndex = m_TextMeshPro.textInfo.characterInfo[num].vertexIndex;
				Color32 color = new Color32((byte)Random.Range(0, 255), (byte)Random.Range(0, 255), (byte)Random.Range(0, 255), byte.MaxValue);
				Color32[] colors = m_TextMeshPro.textInfo.meshInfo[materialReferenceIndex].colors32;
				colors[vertexIndex] = color;
				colors[vertexIndex + 1] = color;
				colors[vertexIndex + 2] = color;
				colors[vertexIndex + 3] = color;
				m_TextMeshPro.textInfo.meshInfo[materialReferenceIndex].mesh.colors32 = colors;
			}
			int num2 = TMP_TextUtilities.FindIntersectingLink(m_TextMeshPro, Input.mousePosition, m_Camera);
			if ((num2 == -1 && m_selectedLink != -1) || num2 != m_selectedLink)
			{
				m_selectedLink = -1;
			}
			if (num2 != -1 && num2 != m_selectedLink)
			{
				m_selectedLink = num2;
				TMP_LinkInfo tMP_LinkInfo = m_TextMeshPro.textInfo.linkInfo[num2];
				Debug.Log("Link ID: \"" + tMP_LinkInfo.GetLinkID() + "\"   Link Text: \"" + tMP_LinkInfo.GetLinkText() + "\"");
				Vector3 worldPoint = Vector3.zero;
				RectTransformUtility.ScreenPointToWorldPointInRectangle(m_TextMeshPro.rectTransform, Input.mousePosition, m_Camera, out worldPoint);
				switch (tMP_LinkInfo.GetLinkID())
				{
				}
			}
			int num3 = TMP_TextUtilities.FindIntersectingWord(m_TextMeshPro, Input.mousePosition, Camera.main);
			if (num3 != -1 && num3 != m_lastWordIndex)
			{
				m_lastWordIndex = num3;
				TMP_WordInfo tMP_WordInfo = m_TextMeshPro.textInfo.wordInfo[num3];
				Vector3 position = m_TextMeshPro.transform.TransformPoint(m_TextMeshPro.textInfo.characterInfo[tMP_WordInfo.firstCharacterIndex].bottomLeft);
				position = Camera.main.WorldToScreenPoint(position);
				Color32[] colors2 = m_TextMeshPro.textInfo.meshInfo[0].colors32;
				Color32 color2 = new Color32((byte)Random.Range(0, 255), (byte)Random.Range(0, 255), (byte)Random.Range(0, 255), byte.MaxValue);
				for (int i = 0; i < tMP_WordInfo.characterCount; i++)
				{
					int vertexIndex2 = m_TextMeshPro.textInfo.characterInfo[tMP_WordInfo.firstCharacterIndex + i].vertexIndex;
					colors2[vertexIndex2] = color2;
					colors2[vertexIndex2 + 1] = color2;
					colors2[vertexIndex2 + 2] = color2;
					colors2[vertexIndex2 + 3] = color2;
				}
				m_TextMeshPro.mesh.colors32 = colors2;
			}
		}

		public void OnPointerEnter(PointerEventData eventData)
		{
			Debug.Log("OnPointerEnter()");
			m_isHoveringObject = true;
		}

		public void OnPointerExit(PointerEventData eventData)
		{
			Debug.Log("OnPointerExit()");
			m_isHoveringObject = false;
		}
	}
}