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Re: recent change to yanking behavior of the clipboard
From: |
Po Lu |
Subject: |
Re: recent change to yanking behavior of the clipboard |
Date: |
Sun, 06 Feb 2022 15:37:53 +0800 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.60 (gnu/linux) |
Noah Friedman <noah@splode.com> writes:
> This change in master:
>
> 2022-02-01 10:13:15 +0800 Po Lu <luangruo@yahoo.com> 99c637499e
>
> Only apply last change to the clipboard
>
> * lisp/select.el (gui--selection-value-internal): Only return
> nil if we own the clipboard.
>
> Means that yanking never pastes the clipboard if I've programmatically set
> the clipboard selection (which I do for both emacs and the sake of other
> program windows that use it)
If you assert ownership of CLIPBOARD from another program, then
`gui-selection-value' (which is the interprogram-paste-function) will
not return nil. If not, that program is buggy and should be fixed.
Unless you are setting the clipboard inside Emacs via `x-set-selection',
in which case see below:
> But, curiously, you didn't make this change for the primary selection.
Because, typically, Emacs does not keep a local ring for text stored
into the primary selection. `select-enable-primary' is a violation of
the XDG clipboard spec, and is unlikely to be used by many people, so I
didn't enable that code there.
> That means when I yank, I don't get the thing I've most recently copied to
> the clipboard. I get some old thing from the primary selection.
>
> I don't understand how this new behavior is meant to be useful.
It is meant to be useful by providing a visible performance improvement
when Emacs is run over a network with moderate latency, by not querying
the X server for the value of CLIPBOARD when text was last killed inside
Emacs. And yes, that is what motivated me to install that change.
> It's broken, and I am not exaggerating, somewhere around 30 years of
> muscle reflexes.
Why can't you save the clipboard contents into the kill ring as well?
> Please revert this.
We can provide a knob to turn that new behaviour off, but I'm not giving
up such a visible performance increase in yanking text when Emacs is
forwarded over a remote connection.
> Not every item that goes to the clipboard comes from a buffer kill or
> copy action. Not everything emacs "owns" is already in the kill-ring.
No, and neither should C-y yank any text not in the kill ring (or from
an interprogram paste, and text Lisp code saves into the kill ring is
not "interprogram".)
Thanks.
- recent change to yanking behavior of the clipboard, Noah Friedman, 2022/02/06
- Re: recent change to yanking behavior of the clipboard,
Po Lu <=
- Re: recent change to yanking behavior of the clipboard, Eli Zaretskii, 2022/02/06
- Re: recent change to yanking behavior of the clipboard, Po Lu, 2022/02/06
- Re: recent change to yanking behavior of the clipboard, Óscar Fuentes, 2022/02/06
- Re: recent change to yanking behavior of the clipboard, Po Lu, 2022/02/06
- Re: recent change to yanking behavior of the clipboard, Óscar Fuentes, 2022/02/06
- Re: recent change to yanking behavior of the clipboard, Po Lu, 2022/02/06
- Re: recent change to yanking behavior of the clipboard, Óscar Fuentes, 2022/02/07
- Re: recent change to yanking behavior of the clipboard, Yuri Khan, 2022/02/07
- Re: recent change to yanking behavior of the clipboard, Óscar Fuentes, 2022/02/07