Bug 559044

Summary:

Wrong armListener is called for menuItem when its menu is attached to multiple MenuItems

Product:

[Eclipse Project] Platform

Reporter:

Dieter Mai <maidieter>

Component:

SWT

Assignee:

Platform-SWT-Inbox <platform-swt-inbox>

Status:

NEW ---

QA Contact:

Severity:

normal

Priority:

CC:

maidieter

Version:

4.15

Target Milestone:

---

Hardware:

OS:

Windows 10

Whiteboard:

Attachments:

Description	Flags
Example Snippet	none

Description Dieter Mai

2020-01-10 13:05:02 EST

Created attachment 281448 [details]
Example Snippet

This issue happens on Windows 10 but not on Linux (Ubuntu 18). did not test other OS.
Teste with SWT 12, 14 and 15. All of which had this issue.

How to reproduce
1. Create a Menu with MenuItems A, B and C of the style CASCADE.
2. Create a Menu with with at least one MenuItem.
3. Set the Menu from step 2 as Menu for MenuItem A, B and C.
4. Create an ArmListener for each MenuItem A, B and C.

On Linux: The ArmListener assigned to a MenuItem is called when this MenuItem is armed
On Windows: The ArmListener that was assigned to MenuItem C is called for every MenuItem

Example Code Snippet: see attachment

Comment 1 Dieter Mai

2021-03-24 16:47:05 EDT

Retested with SWT 4.19. The issue still occurs.