Popup script for Unity3D (using EzGUI, iTween)

UIPopup.cs

using UnityEngine;
using System.Collections;

// delegates
public enum UIPopupState {
	SUBMIT,
	CANCEL
}
public delegate void ClickDelegate(UIPopupState state);

/// <summary>
/// 	Common Popup Framework
///		by koki ibukuro
/// </summary>
public class UIPopup : MonoBehaviour {

	public bool enableCoverCancel = true;
	public UIButton submitButton;
	public UIButton cancelButton;
	public UIButton coverButton;
	
	private ClickDelegate _popupDelegate = null;
	
	void Start () {
		if(submitButton) {
			submitButton.SetValueChangedDelegate(onSubmitClicked);
		}
		if(cancelButton) {
			cancelButton.SetValueChangedDelegate(onCancelClicked);
		}
		if(coverButton) {
			coverButton.SetValueChangedDelegate(onCoverClicked);
		}
	}
	
	void OnDestroy() {
		submitButton = null;
		cancelButton = null;
		coverButton = null;
	}
	
	/// <summary>
	/// 	Set Click Delegate
	/// </summary>
	public void SetClickDelegate(ClickDelegate del) {
		_popupDelegate = del;
	}
		
	void onSubmitClicked(IUIObject obj) {
		animateDestroy();
		callDelegte(UIPopupState.SUBMIT);
	}
	
	void onCancelClicked(IUIObject obj) {
		animateDestroy();
		callDelegte(UIPopupState.CANCEL);
	}
	
	void onCoverClicked(IUIObject obj) {
		if(enableCoverCancel) {
			animateDestroy();
			if(cancelButton != null) {
				callDelegte(UIPopupState.CANCEL);
			}
			else {
			    callDelegte(UIPopupState.SUBMIT);
			}
		}
	}
	
	
	void animateDestroy() {
		float outScale = 0.5f;
		// do fade out
		iTween.FadeTo(gameObject, iTween.Hash(
			"alpha", 0f,
			"time",0.3f,
			"easetype","easeInQuad",
			"oncompletetarget", gameObject,
			"oncomplete", "OnAnimateDestroyFinished"
		));
	}
	
	void OnAnimateDestroyFinished() {
		Destroy(gameObject);
	}
	
	void callDelegte(UIPopupState state) {
		if(_popupDelegate != null) {
			_popupDelegate(state);
		}
		else {
			Debug.LogWarning("you need set Delegate");
		}
	}
	
}

1. Make the Prefab

• Popup:UIPopup
  • Window:Sprite
    • SubmitButton:UIButton
    • CancelButton (optional) : UIButton
  • CoverButton:UIButton

2. Set Properties

• SubmitButton to UIPopup.submitButton
• CancelButton to UIPopup.cancelButton
• CoverButton to UIPopup.coverButton

Example

var popupPrefab;

function Start() {
    var popup:UIPopup = Instantiate(popupPrefab, Vector3.zero, Quaternion.identity) as UIPopup;
    popup.SetClickDelegate(onPopupClick);
}

function onPopupClick(UIPopupState state) {
    if(state.SUBMIT) {
        // DO 
    }
    else if(state.CANCEL) {
        // DO
    }
}