Message window goes blank
- From: Peter Bloomfield <PeterBloomfield MindSpring com>
- To: Balsa list <balsa-list gnome org>
- Subject: Message window goes blank
- Date: Thu, 1 Aug 2002 19:17:29 -0400
Double-click on a message in the mailbox index, and it's opened in a
new message window. Close the mailbox using the notebook tab or the
menu item, and the message window goes blank. That's good, because the
message, while still readable, is essentially inaccessible with the
mailbox closed. In particular, the LibBalsaMessage object representing
the message is destroyed.
However, the message window's controls (menu items and toolbar buttons)
remain sensitive, and if you activate one you get an instant crash,
basically because of the destruction of the LibBalsaMessage object.
That's bad. Here are some alternatives:
1. Desensitize the controls.
2. A window with no content and broken (or insensitive)
controls is useless: destroy it.
3. The LibBalsaMailbox object representing the mailbox,
and the LibBalsaMessage objects representing its messages,
don't have to be closed just because you `closed' the
mailbox using the notebook tab or the menu item.
The message window could keep the mailbox open and the message
it's showing valid, by ref'ing them (and opening
the mailbox itself).
Personally, I don't use the message window often--the preview pane does
it for me. So my preference, which is for Alternative 3, doesn't mean a
lot. How do you feel about them? And does anyone know of a reason* why
Alternative 3 wouldn't work?
Peter
* Well, I know of one: if the part of the mailbox tree containing the
current mailbox is rescanned while the message window is holding the
mailbox open, we would wind up with two LibBalsaMailbox objects
representing the same real mailbox, which sounds *really* bad for your
health. But that's already an issue when composing a reply, as the
compose window holds on to the mailbox containing the message to which
you're replying, so it can mark the message as replied-to. We need to
fix that anyway, perhaps by adding a
"close-this-mailbox-now-or-I'll-kick-your-*ss" signal to the mailbox
object.
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