GTK2: SpeedButton freezes (need extra click) after close popup menu without choosing any popup menu item (Fix 2).

Original Reporter info from Mantis: and3md @and3md

• Reporter name: Andrzej Kilijanski

Description:

This is the second part of the popup menu problem - https://bugs.freepascal.org/view.php?id=38401 (closing the menu freezes some controls (eg SpeedButton)) - this solves the problem with the system/default menus.

I divided the whole solution into two parts because, perhaps it should be fixed in a different way. This part solves the problem with the system/default popup menus by using the populate-popup signal to access the system popup menu.

This fixes:
- Edit
- Memo
- Combobox
- MAskEdit
- SpinEdit
- LabeledEdit

In the example program this part (fix 2) will fix the controls with no PopupMenu added in Lazarus.

Steps to reproduce:

The easiest way to cause the controls to freeze is:

1. Add SpeedButton to the Form
   
2. Add Edit
   
3. After run click right on Edit and then click on the form to hide the popup menu
   
4. At this point, the SpeedButton will be frozen (need extra click to start working)

Mantis conversion info:

• Mantis ID: 38402
• OS: Linux Mint
• OS Build: 20.1
• Platform: amd64
• Version: 2.1 (SVN)
• Fixed in revision: r64431 (#e7986013), r64473 (#bef5ada2)
• Monitored by: » Petr-K (Petr-K), » AntonK (Anton Kavalenka)