HeavenStudioPlus/Assets/Plugins/com.unity.uiextensions/Runtime/Scripts/Utilities/UISelectableExtension.cs

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2022-01-06 00:11:33 +00:00
/// Credit AriathTheWise, Sfyne
/// Sourced from - http://forum.unity3d.com/threads/scripts-useful-4-6-scripts-collection.264161/page-2#post-1796783
/// Additional disabled - https://bitbucket.org/SimonDarksideJ/unity-ui-extensions/issues/47/uiselectableextension-_pressed-bug
/// Extended to include a HELD state that continually fires while the button is held down.
/// Refactored so it can be added to any button and expose the events in the editor.
using UnityEngine.Events;
using UnityEngine.EventSystems;
namespace UnityEngine.UI.Extensions
{
/// <summary>
/// UIButton
/// </summary>
[AddComponentMenu("UI/Extensions/UI Selectable Extension")]
[RequireComponent(typeof(Selectable))]
public class UISelectableExtension : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
{
#region Sub-Classes
[System.Serializable]
public class UIButtonEvent : UnityEvent<PointerEventData.InputButton> { }
#endregion
#region Events
[Tooltip("Event that fires when a button is initially pressed down")]
public UIButtonEvent OnButtonPress;
[Tooltip("Event that fires when a button is released")]
public UIButtonEvent OnButtonRelease;
[Tooltip("Event that continually fires while a button is held down")]
public UIButtonEvent OnButtonHeld;
#endregion
private bool _pressed;
private PointerEventData _heldEventData;
void IPointerDownHandler.OnPointerDown(PointerEventData eventData)
{
//Can't set the state as it's too locked down.
//DoStateTransition(SelectionState.Pressed, false);
if (OnButtonPress != null)
{
OnButtonPress.Invoke(eventData.button);
}
_pressed = true;
_heldEventData = eventData;
}
void IPointerUpHandler.OnPointerUp(PointerEventData eventData)
{
//DoStateTransition(SelectionState.Normal, false);
if (OnButtonRelease != null)
{
OnButtonRelease.Invoke(eventData.button);
}
_pressed = false;
_heldEventData = null;
}
void Update()
{
if (!_pressed)
return;
if (OnButtonHeld != null)
{
OnButtonHeld.Invoke(_heldEventData.button);
}
}
/// <summary>
/// Test method to verify a control has been clicked
/// </summary>
public void TestClicked()
{
#if DEBUG || UNITY_EDITOR
Debug.Log("Control Clicked");
#endif
}
/// <summary>
/// Test method to verify a control is pressed
/// </summary>
public void TestPressed()
{
#if DEBUG || UNITY_EDITOR
Debug.Log("Control Pressed");
#endif
}
/// <summary>
/// est method to verify if a control is released
/// </summary>
public void TestReleased()
{
#if DEBUG || UNITY_EDITOR
Debug.Log("Control Released");
#endif
}
/// <summary>
/// est method to verify if a control is being held
/// </summary>
public void TestHold()
{
#if DEBUG || UNITY_EDITOR
Debug.Log("Control Held");
#endif
}
//Fixed UISelectableExtension inactive bug (if gameObject becomes inactive while button is held down it never goes back to _pressed = false)
void OnDisable()
{
_pressed = false;
}
}
}