https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4487
--- Comment #9 from Bill Meier <wmeier@xxxxxxxxxxx> 2010-02-15 08:59:29 PST ---
OK: I've done some testing of how mouse clicks seem to work in gtk_combo_box
and in gtk_option_menu for:
1. Gtk2.16 vs Gtk 2.18;
2. Windows 7 vs Fedora 12 Linux; (See below addt'l for environment info)
(In the fix described above the I/O Graph code was changed to use gtk_combo_box
instead of gtk_option_menu for the "dropdown boxes").
On my systems, mouse clicks for these widgets are handled in basically two
different ways depending upon the widget and/or the Gtk Version and/or the O/S.
The two behaviors:
1. Clicking on the widget opens the drop-down; a second click is needed to
close the dropdown.
2. The dropdown remains visible only as long as the mouse button is held down.
Based upon the tests:
1. Windows Wireshark: behavior for gtk_options_menu seems to have changed going
from Gtk 2.16 to 2.18 (as reported by Keith) while gtk_combo_box behavior
did not change. Behavior #1 is seen for all but gtk_option_menu on Gtk 2.18.
2. Fedora Wireshark: behaviour #2 is (mostly) seen for both Gtk 2.16 and 2.18
(See below for details)
My comments:
1. It would be interesting to know if the behaviors are similar in
other Windows and Linux environments ?
2. Is one of the above behaviors the expected behavior and thus the other
might be considered a bug ?
(I could imagine that the actual behavior is dependent upon the details
of the underlying implementation of windows, button events & etc and
thus might change on different systems).
3. Changing Wireshark use of gtk_option_menu to gtk_combo_box is
appropriate since gtk_option_menu is deprecated. However this
may not lead to consistent behavior between O/S's.
-----
For the I/O Graph dropdowns on my Windows 7 envoronment:
Wireshark 1.2.5: Behavior #1 [Gtk-2.16; gtk_option_menu]
Wireshark 1.2.6: Behavior #2 [Gtk-2-18; gtk_option_menu]
Wireshark 1.3.3: Behavior #1 [Gtk-2.18; gtk_combo_box]
The strange part:
For the I/O Graph dropdowns on my Fedora 12 Linux:
Wireshark 1.3.3: Behavior #2 (*mostly) [Gtk 2.18; gtk_combo_box]
Wireshark 1.3.3: Behavior #2 (*mostly) [Gtk 2.18; gtk_option_menu]
(used in 'decode-as")
*repeated clicking of a dropdown sometimes shows behavior #1
---
I did some further testing (via a test program which displayed both
a gtk_option_menu dropdown and a gtk_combo_box dropdown) and found that:
My Windows 7: Most cases exhibited behavior #1
Gtk 2.16 Gtk 2.18
gtk_option_menu #1 #2
gtk_combo_box #1 #1
My Fedora Linux: All cases mostly exhibited behavior #2.
Gtk 2.16 Gtk 2.18
gtk_option_menu #2* #2*
gtk_combo_box #2* #2*
*mostly: I got a sense that the behavior is somehow timing dependent.
-----
My Fedora 12 environment: Fedora 12 running in a VirtualBox VM under Windows
7.
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