When I hide an xterm apparently the Awesome WM transforms the title to simply "xterm" instead of showing the actual window's name.
For example if I have this (querying with xwininfo):
xwininfo: Window id: 0x5c0000d "xterm:john:$ top"
Map State: IsViewable
...
But then if I click on the taskbar to "hide" this xterm, xwininfo says this:
xwininfo: Window id: 0x5c0000d "xterm:john:$ top"
Map State: isUnmapped
...
So my xterm which is not viewable anymore is seen, by xwininfo, as "isUnmapped" (as opposed to isViewable). But its title didn't change: it is still "xterm:john:$ top".
So far so good. Except that Awesome is now displaying, in the taskbar, only "xterm" instead of the actual xterm's title.
So I have the behavior I want when the xterm is visible, but I don't have the behavior I want when the xterm is hidden.
How can I get Awesome to display the actual xterm's title instead of simply "xterm" in both cases?
Bonus point if I can get Awesome to show "[HIDDEN]: xterm:john:$ top", so I know immediately if the xterm is currently viewable or not.
P.S: I've got a pretty custom xterm title, updating at each command, indicating whether a command is currently running or not etc. and as far as I know my customization always set the xterm's window title correctly (as can be seen by xwininfo).
It's probably displaying the icon title. You can see that information using xprop, e.g., as the WM_ICON_NAME and _NET_WM_ICON_NAME properties. xwininfo shows only information for the selected window (an icon is actually a different window).
The escape sequence used to set the title string has a 2 parameter, to denote just the window title. Changing that to 0 tells xterm to set both icon and window titles.