From: "Jan Djärv" <jan.h.d@swipnet.se>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: Strange code in nsterm.m
Date: Mon, 01 Nov 2010 22:36:38 +0100 [thread overview]
Message-ID: <4CCF32E6.5000305@swipnet.se> (raw)
In-Reply-To: <83iq0g6c3l.fsf@gnu.org>
Eli Zaretskii skrev 2010-11-01 21.08:
> Here's mouseExited from nsterm.m:
>
> - (void)mouseExited: (NSEvent *)theEvent
> {
> NSPoint p = [self convertPoint: [theEvent locationInWindow] fromView: nil];
> NSRect r;
> struct ns_display_info *dpyinfo
> = emacsframe ? FRAME_NS_DISPLAY_INFO (emacsframe) : NULL;
>
> NSTRACE (mouseExited);
>
> if (dpyinfo || !emacsframe)<<<<<<<<<<<<<<<<<<<<<<<
> return;
>
> last_mouse_movement_time = EV_TIMESTAMP (theEvent);
>
> if (emacsframe == dpyinfo->mouse_face_mouse_frame)
> {
> clear_mouse_face (dpyinfo);
> dpyinfo->mouse_face_mouse_frame = 0;
> }
> }
>
> Isn't the line marked with<<<<<<<<<<<<<<<<<<<<<<< wrong? It should
> say
>
> if (!dpyinfo || !emacsframe)
> return;
>
> right? Because if dpyinfo is NULL, we cannot dereference it two lines
> after that. Am I missing something?
No your analysis is correct. However, mouseExited doesn't seem to get called
on OSX. Not sure if the mouse face gets cleared someplace else. Initial
testing indicates that it does, probably when loosing focus.
Jan D.
prev parent reply other threads:[~2010-11-01 21:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-01 20:08 Strange code in nsterm.m Eli Zaretskii
2010-11-01 21:36 ` Jan Djärv [this message]
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