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From: "Basil L. Contovounesios" <contovob@tcd.ie>
To: "Jose A. Ortega Ruiz" <jao@gnu.org>
Cc: Katsumi Yamaoka <yamaoka@jpl.org>,
	Lars Ingebrigtsen <larsi@gnus.org>,
	37515@debbugs.gnu.org
Subject: bug#37515: 27.0.50; button.el doesn't support help-echo function
Date: Mon, 30 Sep 2019 20:53:53 +0100	[thread overview]
Message-ID: <874l0tftm6.fsf@tcd.ie> (raw)
In-Reply-To: <87sgodftxd.fsf@tcd.ie> (Basil L. Contovounesios's message of "Mon, 30 Sep 2019 20:47:10 +0100")

"Basil L. Contovounesios" <contovob@tcd.ie> writes:

> diff --git a/lisp/button.el b/lisp/button.el
> index 9112e518b0..ae2488bac6 100644
> --- a/lisp/button.el
> +++ b/lisp/button.el
> @@ -470,13 +470,22 @@ push-button
>  	(button-activate button use-mouse-action)
>  	t))))
>  
> +(defun button--help-echo (button)
> +  "Evaluate BUTTON's `help-echo' property and return its value."
> +  (let ((help (button-get button 'help-echo)))
> +    (if (functionp help)
> +        (let ((obj (if (overlayp button) button (current-buffer))))
> +          (funcall help (selected-window) obj (button-start button)))
> +      (eval help lexical-binding))))

Note that I intend to enable lexical-binding in button.el in a future
patch, in which case this call to eval will not need changing.

-- 
Basil





  reply	other threads:[~2019-09-30 19:53 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-26  1:14 bug#37515: 27.0.50; button.el doesn't support help-echo function Katsumi Yamaoka
2019-09-26  1:26 ` Katsumi Yamaoka
2019-09-26 13:49   ` Lars Ingebrigtsen
     [not found]     ` <esr-pdhHsyCqhSoZbW_3iLp4UdujyDpcbOuBdPROA9aG3j9CO0niyrK5O_Tf33N-le-e5hmaqbYZLyuNc6kd3A==@protonmail.internalid>
2019-09-26 21:44     ` Katsumi Yamaoka
2019-09-26 22:56       ` Jose A. Ortega Ruiz
2019-09-30 19:47         ` Basil L. Contovounesios
2019-09-30 19:53           ` Basil L. Contovounesios [this message]
2019-10-01 12:29             ` Basil L. Contovounesios
2019-10-01 12:28           ` Lars Ingebrigtsen
2019-10-01 12:32             ` Basil L. Contovounesios
2019-10-03 23:00               ` Basil L. Contovounesios

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