WebKit doubles Keystrokes

[N1k145]

Describe the bug
When having the Focus in a WebKit Browser, keybindings are triggered twice.

I did a bit of Debugging and notices that there are coming two Events from the Display Que, but I was not able to determine how the second event ended up on the Que.

To Reproduce
A standalone SWT snippet to reproduce the behavior (preferable):

import javax.annotation.PostConstruct;

import org.eclipse.swt.SWT;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;

public class BrowserPart {

   @PostConstruct
   public void build(final Composite parent) {
      Browser browser = new Browser(parent, SWT.NONE);
      browser.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, true));

      browser.setUrl("https://google.com");
   }
}

Steps to reproduce the behavior:
Alternatively, open the "Internal Browser" View in Eclipse

Click Ctrl + H, the Search Dialog opens
Click Esc or Cancle
The Dialog closes
The Dialog opens again

Expected behavior
The Dialog opens once

Screenshots

2024-04-30.08-29-46.mp4

Environment:

1. Select the platform(s) on which the behavior is seen:

• • All OS
• • Windows
• • Linux
• • macOS

2. Additional OS info (e.g. OS version, Linux Desktop, etc)
   Ubuntu 22.4 X11

3. JRE/JDK version
   Java 17 Coretto

Version since
At least 23-09 (4.29)

Workaround (or) Additional context
Add any other context about the problem here.
Any known workarounds for the problem?

No

[jukzi]

@N1k145 if you need a fix please provide a PR as there is currently nobody fixing such errors.

[N1k145]

@jukzi thank you for the hint. But I have to say that I have no idea how to tackle this. As this probably involves the native SWT/GTK parts from what I have seen during my initial investigation.