Unity Issue Tracker - IPointerExitHandler.OnPointerExit is called incorrectly when running via Script

By Design

Votes

1

Found in

2021.2.0a21

2021.2.19f1

2021.3

2022.1

2022.2

Issue ID

1419953

Regression

Yes

IPointerExitHandler.OnPointerExit is called incorrectly when running via Script

uGUI

-

Apr 13, 2022

How to reproduce:
1. Open the attached "1419953.zip" project
2. Open the "Scene" Scene
3. Enter Play Mode
4. Move the mouse pointer onto the colored Canvas GameObjects
5. Open the Console Window

Expected result: "Exit Parent" is only printed when you leave the whole canvas
Actual result: Once you enter the "Child" Canvas GameObject, "Exit Parent" is printed

Reproducible with: 2021.2.0a21, 2021.3.1f1, 2022.1.0f1, 2022.2.0a11
Not reproducible with: 2019.4.38f1, 2020.3.34f1, 2021.2.0a20

Note:
- Reproducible on a new project

Resolution Note:

We use "fully exited" flag to indicate pointer position. when "fully exited" =false, it indicates enter child elements even though it's still in the parent. when pointer is completely out, "fully exited" flag will be true. and therefore the additional call. We are planning to make a doc update though, for this change.

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Comments (3)

SnooksV3

Jul 26, 2022 10:03

Absolutely maddening change. Poor decision.
Tanky

May 10, 2022 15:32

It took a little detective work but in case it helps anyone else, here is basically what the "resolution note" means. PointerEventData has been updated to contain a new boolean property called "fullyExited", which you can use like this:

public void OnPointerExit (PointerEventData eventData)
{
if (eventData.fullyExited)
; // execute previous behavior here
}
Tanky

May 09, 2022 22:24

Could you explain that in more detail? What flags are you referring to? PointerEventData does not seem to have any flags.

I am not familiar with "ono" nor can I access the link you posted.

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