GNU bug report logs - #10464
24.0.92; mouse highlight regression

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#10464: closed (24.0.92; mouse highlight regression)
Date: Wed, 11 Jan 2012 19:49:02 +0000

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Your message dated Wed, 11 Jan 2012 21:47:26 +0200
with message-id <831ur6dnsh.fsf <at> gnu.org>
and subject line Re: bug#10464: 24.0.92; mouse highlight regression
has caused the debbugs.gnu.org bug report #10464,
regarding 24.0.92; mouse highlight regression
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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From: Chong Yidong <cyd <at> gnu.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.0.92; mouse highlight regression
Date: Mon, 09 Jan 2012 18:16:38 +0800

With latest trunk, the (non-automated) redisplay testsuite is failing in
Test 2.  Here is a simplified recipe:

emacs -Q

Insert the following:

  (let ((opoint (point))
	overlay)
    (insert "XXX")
    (setq overlay (make-overlay opoint (point)))
    (overlay-put overlay 'display "XXX")
    (overlay-put overlay 'mouse-face 'highlight))

M-x eval-buffer RET
Move the mouse over the XXX that was inserted.

Result: multiple lines are highlighted, from the end of the first buffer
line to the end of the display string.

Expected result (works in Emacs 23): only the XXX is highlighted.


In GNU Emacs 24.0.92.9 (x86_64-unknown-linux-gnu, GTK+ Version 3.2.0)
 of 2012-01-09 on furball
Windowing system distributor `The X.Org Foundation', version 11.0.11004000
configured using `configure  '--with-x-toolkit=gtk3' 'CFLAGS=-g''

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Chong Yidong <cyd <at> gnu.org>
Cc: 10464-done <at> debbugs.gnu.org
Subject: Re: bug#10464: 24.0.92; mouse highlight regression
Date: Wed, 11 Jan 2012 21:47:26 +0200

> From: Chong Yidong <cyd <at> gnu.org>
> Cc: 10464 <at> debbugs.gnu.org
> Date: Tue, 10 Jan 2012 12:21:10 +0800
> 
> Thanks for the very quick fix.
> 
> This specific case is indeed fixed, but there is still a failing corner
> case in the redisplay testsuite.  Load test/redisplay-testsuite.el, do
> M-x test-redisplay, and go to the very last case in Test 2.
> 
> When the mouse is over the XXX, the highlight only extends to the end of
> the text, whereas it's expected to go to the end of the line.  This is
> the case where there's an overlay with "XXX\n" as the display string and
> a mouse face.

Fixed (trunk revision 106848).

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