SessionListButton.cs

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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See LICENSE in the project root for license information.

using UnityEngine;
using HoloToolkit.Unity.InputModule;

namespace HoloToolkit.Unity.SharingWithUNET
{
    public class SessionListButton : MonoBehaviour, IInputClickHandler
    {
        private NetworkDiscoveryWithAnchors.SessionInfo SessionInfo;

        private int textColorId;

        private TextMesh textMesh;

        private Material textMaterial;

        private ScrollingSessionListUIController scrollingUIController;

        private void Awake()
        {
            textMesh = gameObject.GetComponentInChildren<TextMesh>();
            textMaterial = textMesh.GetComponent<MeshRenderer>().material;
            textColorId = Shader.PropertyToID("_Color");
            scrollingUIController = ScrollingSessionListUIController.Instance;
            if (scrollingUIController == null)
            {
                Debug.Log("without a scrolling UI control, this button can't work");
                Destroy(this);
            }
        }

        private void OnDestroy()
        {
            if (textMaterial != null)
            {
                Destroy(textMaterial);
                textMaterial = null;
            }
        }

        public void SetSessionInfo(NetworkDiscoveryWithAnchors.SessionInfo sessionInfo)
        {
            SessionInfo = sessionInfo;
            if (SessionInfo != null)
            {
                textMesh.text = string.Format("{0}\n{1}", SessionInfo.SessionName, SessionInfo.SessionIp);
                if (SessionInfo == scrollingUIController.SelectedSession)
                {
                    textMaterial.SetColor(textColorId, Color.blue);

                    textMesh.color = Color.blue;
                }
                else
                {
                    textMaterial.SetColor(textColorId, Color.yellow);
                    textMesh.color = Color.yellow;
                }
            }
        }

        public void OnInputClicked(InputClickedEventData eventData)
        {
            scrollingUIController.SetSelectedSession(SessionInfo);
            eventData.Use();
        }
    }
}