DialogExampleLaunchButton.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 HoloToolkit.Unity.Buttons;
using HoloToolkit.UX.Dialog;
using System.Collections;
using UnityEngine;

namespace HoloToolkit.Examples.UX
{
    public class DialogExampleLaunchButton : MonoBehaviour
    {
        [SerializeField]
        private Dialog dialogPrefab = null;

        [SerializeField]
        private bool isDialogLaunched;

        [SerializeField]
        private GameObject resultText;
        public GameObject ResultText
        {
            get
            {
                return resultText;
            }

            set
            {
                resultText = value;
            }
        }

        [SerializeField]
        [Range(0,2)]
        private int numButtons = 1;

        private TextMesh resultTextMesh;
        private Button button;

        protected IEnumerator LaunchDialog(DialogButtonType buttons, string title, string message)
        {
            isDialogLaunched = true;

            //Open Dialog by sending in prefab
            Dialog dialog = Dialog.Open(dialogPrefab.gameObject, buttons, title, message);

            if(dialog != null)
            {
                //listen for OnClosed Event
                dialog.OnClosed += OnClosed;
            }

            // Wait for dialog to close
            while (dialog.State < DialogState.InputReceived)
            {
                yield return null;
            }

            //only let one dialog be created at a time
            isDialogLaunched = false;

            yield break;
        }

        private void OnEnable()
        {
            resultTextMesh = ResultText.GetComponent<TextMesh>();
            button = GetComponent<Button>();
            if(button != null)
            {
                button.OnButtonClicked += OnButtonClicked;
            }
        }

        private void OnButtonClicked(GameObject obj)
        {
            if (isDialogLaunched == false)
            {
                if (numButtons == 1)
                {
                    // Launch Dialog with single button
                    StartCoroutine(LaunchDialog(DialogButtonType.OK, "Single Button Dialog", "Dialogs and flyouts are transient UI elements that appear when something happens that requires notification, approval, or additional information from the user."));
                }
                else if (numButtons == 2)
                {
                    // Launch Dialog with two buttons
                    StartCoroutine(LaunchDialog(DialogButtonType.Yes | DialogButtonType.No, "Two Buttons Dialog", "Dialogs and flyouts are transient UI elements that appear when something happens that requires notification, approval, or additional information from the user."));
                }
            }
        }

        protected void OnClosed(DialogResult result)
        {
            // Get the result text from the Dialog
            resultTextMesh.text = result.Result.ToString();
        }
    }
}