Re: latest theme changes make Thematic crash

[Riccardo Mottola]

Hi,

at first, I thought a reliable way of reproducing it. I was able to get 
it crash also withhout saving or applying changes, just by openin a 
theme and opening the inspector (without, with just the main document 
window it would work). But then it proved that it wasn't always the case.

On linux, the stacktrace I got was:

#0  0xb76b10d5 in objc_msg_lookup ()
   from /usr/lib/gcc/i686-pc-linux-gnu/4.7.2/libobjc.so.4
#1  0xb7c287eb in -[NSApplication(Private) _targetForAction:window:] (
    self=0x814d76c, _cmd=0xb7eef2a0 <_OBJC_SELECTOR_TABLE+3360>,
    aSelector=0x8171338, window=0x84b0fe4) at NSApplication.m:3891
#2  0xb7c28997 in -[NSApplication(Private) 
_targetForAction:keyWindow:mainWindow:] (self=0x814d76c, _cmd=0xb7eeef48 
<_OBJC_SELECTOR_TABLE+2504>,
    aSelector=0x8171338, keyWindow=0x843a9a4, mainWindow=0x84b0fe4)
    at NSApplication.m:3936
#3  0xb7c2669f in -[NSApplication targetForAction:] (self=0x814d76c,
    _cmd=0xb7eeef50 <_OBJC_SELECTOR_TABLE+2512>, aSelector=0x8171338)
    at NSApplication.m:2297
#4  0xb7c265fb in -[NSApplication targetForAction:to:from:] (
    self=self@entry=0x814d76c,
    _cmd=_cmd@entry=0xb7f40490 <_OBJC_SELECTOR_TABLE+1168>,
    theAction=theAction@entry=0x8171338, theTarget=0x0,
    sender=sender@entry=0x819e01c) at NSApplication.m:2273
#5  0xb7cf7792 in -[NSMenu update] (self=0x819dfb4,
    _cmd=0xb7f403d0 <_OBJC_SELECTOR_TABLE+976>) at NSMenu.m:1156
#6  0xb7cf7918 in -[NSMenu update] (self=0x81b2d2c,
    _cmd=0xb7eeee30 <_OBJC_SELECTOR_TABLE+2224>) at NSMenu.m:1151
#7  0xb7c2b8b1 in -[NSApplication(Private) _windowDidBecomeKey:] (
    self=0x814d76c, _cmd=0xb7eeecd0 <_OBJC_SELECTOR_TABLE+1872>,

in #1: window is:
<NSWindow: 0x84b0fe4>Number: 681 Title: Sleek.theme
This would be the main window.
checking at #2 we see:
<NSPanel: 0x843a9a4>Number: 722 Title: System Images Inspector
(gdb) po mainWindow
<NSWindow: 0x84b0fe4>Number: 681 Title: Sleek.theme

Sadly, what appeared to be easily reproducible, appeared not to when you 
try to chase it with zombies. At one point however I got:
2013-04-09 12:36:25.421 Thematic[4601] *** -[ThemeDocument 
respondsToSelector:]: message sent to deallocated instance 0x88ddeb4
2013-04-09 12:36:25.421 Thematic[4601] *** -[ThemeDocument 
respondsToSelector:]: message sent to deallocated instance 0x88ddeb4

I tried to poke with a breakpoint in GSLogZombie but got lost.

it appears the culprit is the disappearing of ThemeDocument itself, 
then, right?

Riccardo