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Re: Little improvements on pulse.el
From: |
Eli Zaretskii |
Subject: |
Re: Little improvements on pulse.el |
Date: |
Wed, 10 Mar 2021 14:13:35 +0200 |
> From: Gabriel <gabriel376@hotmail.com>
> Date: Wed, 10 Mar 2021 02:39:56 -0300
>
> I have been playing with pulse.el in the last few days and some
> ideas/questions come to my mind.
Thanks.
> 1. It can be useful in some cases to pulse the current line by using an
> interactive command, for example, when doing a presentation, a pairing
> with other developer, or to easily find the cursor position. Since
> 'pulse-line-hook-function' is not a good name for an interactive
> function, we can create a new command for that.
How about pulse-line-command? Or even just pulse-line?
> 2. The name and the docstring mention the use with hooks, but would be
> nice to use with advices as well. For example, to highlight the current
> line when the cursor, buffer or window changes:
>
> (dolist (symbol '(scroll-up-command
> scroll-down-command
> recenter-top-bottom
> other-window
> windmove-do-window-select
> kill-current-buffer
> delete-window))
> (advice-add symbol :after #'pulse-line-hook-function))
>
> The code above does not work, since 'pulse-line-hook-function' does not
> accept any argument (sent by the advice function). We can make it accept
> optional arguments, but again the name will not be the best one.
I'd prefer not to use advices for such a simple job. For example, how
about defining a new hook, which will receive the argument(s) you want
to pass it?
> 3. I could not find any documentation or usage in emacs source code for
> 'pulse-line-hook-function' and 'pulse-command-advice-flag'. Is the flag
> 'pulse-command-advice-flag' really needed ? The git history says the
> last modification of this code was 12+ years ago.
You will find one usage of the hook in CEDET. In any case, after so
many years I don't think we should consider removing these without a
good reason. Is there such a reason?
> 4. Would be nice to have support for 'pulse-highlight-start-face' in the
> themes provided by Emacs, especially on modus-themes.
That's up to the themes, no? They don't necessarily modify all the
faces.
> 5. The code on 'pulse-lighten-highlight' can be significantly improved
> by replacing 'pulse-int-to-hex' and 'pulse-color-values-to-hex' with
> 'color-gradient' from color.el. The idea is to build the list of color
> gradients beforehand and use a timer to set each color according to
> 'pulse-iterations' and 'pulse-delay'. A very basic example:
I'm not sure I understand the improvement, can you elaborate?
Re: Little improvements on pulse.el, Juri Linkov, 2021/03/10
Re: Little improvements on pulse.el, Stefan Monnier, 2021/03/11