Comments (13)
wengxt
commented on August 29, 2024
1
Actually I just noticed that st use a very small buffer for key string, so it will not commit string longer than 32 bytes from im. Probably you should report this to st upstream (looking for the caller of XmbLookupString). Comparing to xterm, xterm uses 500 bytes as the buffer, which should be practical for any common usage.
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wengxt
commented on August 29, 2024
it's irrelevant IMHO. I think the cause is same as #30.
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wengxt
commented on August 29, 2024
Should be improved after 75d5cbd .
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pickfire
commented on August 29, 2024
The issue still persists even in the latest commit. r435.8d889da-1 guess maybe I should go and check on the st side. Changing the buffer size for XmbLookupString to 500 does not seem to fix it either.
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pickfire
commented on August 29, 2024
In the meantime, I increased the buffer from 32 to 64 to take in middle to long string from IME, so it should even work for sentences now, the patch was included in upstream https://git.suckless.org/st/commit/895e5b50a8cc835c19a45e1e328eb4dc78f5fd0c.html.
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wengxt
commented on August 29, 2024
Tried multiple different xim based application (gtk-xim, xterm) non of them have the same problem. So I don't think the issue is in fcitx. I suspect st misses some XFlush call.
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pickfire
commented on August 29, 2024
But I tried using old fcitx and it works fine, okay I will check on the XFlush call.
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pickfire
commented on August 29, 2024
I believe it probably have something to do with high autorepeat I did with xset r rate 150 60, when I did not set that, it works nicely.
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wengxt
commented on August 29, 2024
When we are talking about the real cause of the bug, we are not talking
about what triggers the bug.
With that being said, under your autorepeat settings, xterm, gtk based xim,
work properly. I can only assume that the bug is in st.
…On Thu, Jan 30, 2020 at 07:31 Ivan Tham ***@***.***> wrote:
I believe it probably have something to do with high autorepeat I did with xset
r rate 150 60, when I did not set that, it works nicely.
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pickfire
commented on August 29, 2024
Ah, I believed I spot the issue in st, it was introduced in https://git.suckless.org/st/commit/e85b6b64660214121164ea97fb098eaa4935f7db.html#h0-0-3 where xximspot to update the cursor for XIM is called in every draw.
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pickfire
commented on August 29, 2024
Weird that XNPreeditStartCallback is not called on fcitx, but ibus is able to recognize that. Should i not use XIMPreeditCallbacks?
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wengxt
commented on August 29, 2024
on the spot uses XNPreeditStartCallback
over the spot doesn’t use that.
fcitx by default uses over the spot style for xim, because on the spot
doesn’t suppose notify the cursor location.
…On Sun, Feb 2, 2020 at 03:07 Ivan Tham ***@***.***> wrote:
Weird that XNPreeditStartCallback is not called on fcitx, but ibus is
able to recognize that. Should i not use XIMPreeditCallbacks?
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pickfire
commented on August 29, 2024
Okay, thanks a lot for the input. st is also using over-the-spot for now. I also found a patch to fix the repeated key issue, looks like this is an issue with st, not fcitx5 but just that it doesn't happen in fcitx.
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