Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 1715 by [email protected]: Ctrl+Shift+U followed by 7 character
causes big hang
http://code.google.com/p/ibus/issues/detail?id=1715
Press Ctrl+Shift+U, followed by 7 characters.
Notice that the current application, plus all other applications using IBUS
input method completely stop accepting keypress. You can try to press Esc,
Enter, Space and so on, you'd expect them to terminate the hext code, but
instead they do nothing, the input method is stuck at entering the hex code.
This brings the system into an unusable state where probably some users
wouldn't find a way out other than logging out (or even forcing a reboot).
There are a few actions, just as a keyboard layout change, that bring the
system back to life, but it's hard to discover them.
The ibus_engine_simple_process_key_event() method bails out if the maximum
length is already received, and does this even before cheching whether the
current keypress is something that wouldn't make compose_buffer grow any
longer (e.g. backspace, space, enter). It also forgets to reset
compose_buffer or in_hex_sequence.
[On a slightly related note, I find it quite bad that non-hex characters
are accepted. Especially Esc looks stupid in gnome-terminal. I believe that
pressing Esc should cancel entering a hex code, and non-hex characters
should be ignored - this is what plain Gtk+ does if $GTK_IM_MODULE is
unset.]
OS (Linux distributions, UNIX or ...): Linux
Architecture (i386, x86_64): x86_64
IBus version: 1.5.5
Input method name and version: ibus 1.5.5
dbus version: 1.6.18
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