I got irritated enough with some focus issues to dump a few hours into tracing them down tonite, and I've got a possible solution.
For me, the immediate trigger for this was that the result of setting Firefox's ui.context_menus.after_mouseup pref to true (making the context menu come up on mouseup, rather than mousedown) is that it momentarily popped up, then disappeared. It turns out that the fix for that _also_ fixes the case several of us have seen where the urlbar dropdown flickers in and out of existence depending on where your mouse is. And it may also do something on some of the other weird focus cases people have seen. It turned out in investigation I could hack around it by f.focus'ing the window (and I think SloppyFocus would happen to make it work too). So if you still have odd bugs with focus or the like (after the input and EWMH fixes last year) that f.focus hacks around, it's possible these changes will fix that too. After an impressive amount of tracing, this turns out to be the result of several things all conspiring, but one of the more non-obvious is that the context menu _is_ a separate X window, but is _not_ a _child_ of the main firefox window. Rather, it's a totally different window which is a child of the root, and has the override_redirect flag on it to make sure the WM ignores it. And then FF does a bunch of its own weird focus handling to move stuff over there. But, because we're told to ignore it, we never Enter it and so move ourselves over to it; we only Leave the main window, so the upshot is that while FF tries to move the focus over, we "win" and move the focus to the root. Which FF then sees and decides "oh, you must want to get rid of the menu". So it turns in my best understanding that we actually need to be a little smarter about how we interpret the Leave events and shift the focus up to the root. I've got a change up in a branch at <https://code.launchpad.net/~fullermd/ctwm/focus> which fixes things for me. Some broader testing would be good; especially from people running with multiple Screen's (:0.0, :0.1, etc; not Xinerama-ish mode), since that has its own case with Leave's. This seems to be a "bug" (at least very bad interaction) that goes all the way back to twm :) -- Matthew Fuller (MF4839) | fulle...@over-yonder.net Systems/Network Administrator | http://www.over-yonder.net/~fullermd/ On the Internet, nobody can hear you scream.
