Re: IM-related issues on openSUSE 12.1 Beta

Takeyama-san,

thanks for heading up!

I added some relevant guys to Cc.

[As a background: we've discussed shortly in the last week about these
 topics in opensuse-ja ML, now moved to here to discuss more widely.]


At Mon, 10 Oct 2011 18:13:41 +0900,
Fuminobu TAKEYAMA wrote:
> 
> Hi all,
> 
> Several issues related to IM are still remaining on 12.1 Beta.
> 
> 
> 1. IBus should be updated to 1.4.0
> 
> IBus supports GNOME 3 in the latest release, 1.4.0.
> IBus status icon is now well integrated to the toolbar displayed on the
> top of desktop. (I do not know its name)
> 
> In Fedora 15, snapshot version of 1.4.0 was shipped to support GNOME 3.
> 
> 
> In order to update, we have to consider below:
> (a) Since libibus2 was renamed, some IM-engine packages must be fixed.
> (b) 1.4.0 requires newer glib; openSUSE 11.3 does not have it.
> 
> 
> I am ready to submit ibus-1.4.0 to M17N.
> You can get it from
> https://build.opensuse.org/package/show?package=ibus&project=home%3Aftake%3Abranches%3AM17N
> 
> May I submit 1.4.0 to M17N? Or any idea?

I'm for upgrading.  The lack of 11.3 support is a minor issue compared
with the lack of GNOME3 support.

The problem is how large is the breakage by this update.  Do you have
a list of broken packages?


> 2. xim.d/uim is broken.
> 
> Tray icons are not displayed on neither GNOME 3 nor KDE 4.
> This simple script works correctly only on GNOME 3:
> 
> export XMODIFIERS="@im=uim"
> export GTK_IM_MODULE=uim
> export QT_IM_SWITCHER=imsw-multi
> export QT_IM_MODULE=uim
> uim-xim &
> uim-toolbar-gtk3-systray &

So, the situation is similar like the current ibus, right?
Maybe we need to ask GNOME guys for a simple solution.


> 3. uim crashes while launching firefox
> 
> $ GTK_IM_MODULE=uim firefox
> cause segmentation fault at compose.c:633.
> 
> I cannot reproduce this problem on 11.4.
> So I do not know if this is upstream bug or not.
> (needs more information)

UIM tends to be problematic, indeed.  I've got a crash of firefox
sometime ago, but it's before upgrading uim.


> 4. cannot input characters through IM in the search box
>    on GNOME 3's "Activity" tab.
> 
> I reported to upstream:
> https://bugzilla.gnome.org/show_bug.cgi?id=647707
> 
> I created a patch based on
> https://bugzilla.gnome.org/show_bug.cgi?id=621659
> but it enables only direct input while IM is activated:
> https://build.opensuse.org/package/show?package=gnome-shell&project=home%3Aftake%3Abranches%3AGNOME%3AFactory

This sounds more like a GNOME issue.


> 5. xim.d/scim exports GTK_IM_MODULE=scim although SCIM does not provide
>    its GTK3 IM module
> 
> GTK2 applications such as Firefox needs this.
> GTK3 applications try to use another IM (maybe not xim).
> 
> Any good idea? Is it OK?

A simple patch like below might work?  Then we can set xim to
GTK3_IM_MODULE while scim to GTK_IM_MODULE.
I created a branch and building the package now for testing in
OBS home:tiwai:branches:GNOME:Factory/gtk3 repo.
Can anyone check (sorry I have no time right now).

One may try an unofficial scim-gtk3 patch, too.
	http://www.csie.ntu.edu.tw/~b90093/tmp/debian/gtk3.diff

But the problem isn't only about SCIM but may hit other IMs, too.
So, a fallback mechanism would be nicer.


thanks,

Takashi

---
 gtk/gtkimmodule.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/gtk/gtkimmodule.c
+++ b/gtk/gtkimmodule.c
@@ -672,6 +672,12 @@
   if (!contexts_hash)
     gtk_im_module_initialize ();
 
+  envvar = g_getenv ("GTK3_IM_MODULE");
+  if (envvar &&
+      (strcmp (envvar, SIMPLE_ID) == 0 ||
+       g_hash_table_lookup (contexts_hash, envvar))) 
+    return envvar;
+
   envvar = g_getenv ("GTK_IM_MODULE");
   if (envvar &&
       (strcmp (envvar, SIMPLE_ID) == 0 ||