Incorrect message "ローマ字・かな入力の設定は新しいアプリケーションから有効になります。" about mozc HOT 5 CLOSED

Sorry, IBus doesn't need restarting in order to make the setting effectual. We 
only have to toggle input status to enable it.

I think the setup tool should call 'ibus_input_context_set_engine' or 
'ibus_input_context_disable' when "OK" button is clicked so that the setting 
becomes effectual immediately without showing the extra message.

Let me clarify the background of this message.

The configuration of kana/romaji setting is managed by mozc_server.  It is 
encouraged to make Mozc client modules, including ibus-mozc, as stateless as 
possible to minimize the complexity and dependency.  That means that client 
modules (ibus-mozc) don't manage the kana/romaji setting either.

Easiest solution for making the client stateless is to call GetConfig() command 
in every keyevent so that clients can know the current Kana/Romaji status. 
However, when user makes their own keybinding table or romaji table, the size 
of config file gets bigger, which would bring performance drop in IPC 
connections.

As kana/romaji setting is not frequently configured by user, it is basically ok 
to call GetConfig() when user enables IME or new applications are launched.
This behaviour is the same as that of Windows version (Google Japanese Input). 
Currently, ibus-mozc calls GetConfig() command when the input focus leaves from 
he current input field. This behavior doesn't reflect on the current message, 
but I don't think it is a critical issue.

As you mentioned, it might be possible to let config tool call 
'ibus_input_context_set_engine', but it would be hard. We don't want to 
introduce a dependency from config tool to IBus.  It is ok to have dependencies 
from ibus-mozc to ibus or uim-mozc to uim, but mozc tool and mozc server need 
to be platform/ime framework neutral to keep portability.

Thanks for detailed description.

OK, I suggest another solution. How about the client calls GetConfig() in every 
FocusIn event?

I think the current behavior seems obsolete like old frameworks such as SCIM 
and spoils IBus' advantages.

ibus-mozc r39 and later actually calls GetConfig() from FocusIn event handler.
https://code.google.com/p/mozc/source/browse/trunk/src/unix/ibus/mozc_engine.cc?
r=39#422

So ibus-mozc no longer requires this message.  If you want to suppress the 
message, apply the attached patch.  I'm planning to merge this patch into the 
next release.

disclaimer:
I don't know the current situation in other mozc clients on Linux (emacs-mozc, 
uim-mozc, and fcitx-mozc).