From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: martin rudalics Newsgroups: gmane.emacs.bugs Subject: bug#42406: Mouse-wheel scrolling can be flickering Date: Fri, 18 Dec 2020 09:39:35 +0100 Message-ID: References: <8A9929A0-1C51-4CC7-9EB1-1555788465F0@univie.ac.at> <3FA2BD5E-5EAA-496E-AA2F-83810F62082C@univie.ac.at> <5945639e-0fe1-1308-e9e7-62ef44407e89@gmx.at> <8AF2FA71-E12D-414A-9224-31DCC5528BA9@univie.ac.at> <3a8d5d16-4362-a267-acc6-3f2c845fc8ed@gmx.at> <83zh2d91wh.fsf@gnu.org> <5dfe58f9-cddd-cf7b-5061-8929de3f8995@gmx.at> <83r1np8y9o.fsf@gnu.org> <8505b808-3c5b-7864-fc10-90c8e3409e61@gmx.at> <1a3b1fd6-e438-0c77-d317-576e707930a0@gmx.at> <1950D435-7BC8-41AF-99D5-FD673455B3AE@univie.ac.at> <83tusk7aro.fsf@gnu.org> <31e56bf1-203f-f895-20cd-32bab5e05988@gmx.at> <83pn3874r0.fsf@gnu.org> <5014029f-852f-e52e-3f2f-5f7deeba8d67@gmx.at> <83k0tg71mn.fsf@gnu.org> <25f0682d-5f12-4db2-a913-edd3bb8c0610@gmx.at> <834kkj7dte.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; 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Fri, 18 Dec 2020 03:39:49 -0500 Original-Received: from mout.gmx.net ([212.227.17.21]:41515) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kqBIf-0004Iq-Sq for 42406@debbugs.gnu.org; Fri, 18 Dec 2020 03:39:47 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1608280776; bh=PH1RWgteEBM6IxEg0/DVwlgxgAmc/LQGImmAgXb8M+A=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=T4RKLRA5G5tfVeopqNTZ/6yNri+kSzxnweYMoBhLAWk3UnqK7huMvslmpVVy6oCK4 ubLN7aEoGxj6Cc/QyilPWEWio4GkYHqsRboapO+fdwCjC3dbtjgcw7PUbV9GwGBbHw eTMtCIHsIaFrWpYb3wADM5T7g63VU0Om0EcuBbtI= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Original-Received: from [192.168.1.100] ([46.125.249.111]) by mail.gmx.com (mrgmx105 [212.227.17.168]) with ESMTPSA (Nemesis) id 1N17YY-1k6YbK0IRO-012aEv; Fri, 18 Dec 2020 09:39:36 +0100 In-Reply-To: <834kkj7dte.fsf@gnu.org> Content-Language: en-US X-Provags-ID: V03:K1:7whKxkDjni1mVa7Xjo2fN0iNCIGDAPbvHZ0kHtSMZicb5Bt5sDx T14cegG7FIk8VCK517r960yTxKno1utFneOsupji9847yYFwa3AZZ5ZlLRFXE/WyL2lBgvV kl8XM8k6Nyy0LMgSbOxSrqPoGKHK2EyN9/nNmTlggw07W4R4zXani4w7EjuCDXh/+IMzRAs j8JZnYCaRXVyJdr3cjovw== X-UI-Out-Filterresults: notjunk:1;V03:K0:gmG2CinwAP4=:6q0rfTZvdosmn0sCya/bKC B1E4eeLEXZ4lTfXux58ynRtDc5v5ytUQc8GOnRHHDYmiCX8f2yIlLTqdteIr8BSDjRI8Tkm9R d3E6Tg2/LYd+tyBXYoTtzJ8BKHC/Bsf7MCqd/GoOUGJyV7x00+UR4/63DRWhCGqrSyxgJh+3/ aI9B2+7DcaKayQuuGD03rqNAi1aPKQPiuD2XZP/jHuwiS1BkJ9DdV6Mgr+8lxmmP7yvClkdUu +LcywJH6Qq7Y3Y238Jyey7n3CXSuwY6UcrK6eU4MsVfPgmzybZprEqYQ6b6nJlwVHbzUbYXig lqzw0Kv7vRXdSaEIWXvUeK42jBuZiLHxjJi9j95/kmjQ/bbKjuS8cgWzb4WzRs7Dz5+bjZpCB defB0vBiyQ+HzOp9sM5E0iw4I4aAOKENsrKG6IBk+gav++uAMqaPxk6mZ/vjmbnuY4/Vwbb6d 9+OEOijULEYoV3Va4swreX5018mWuzq+dEZWwAcydHo7ciGL1depVlw3RJInnbl34A0S3kgya jZan3g8WlR+Oyy52lS4Gz9/WHshiYT67V45cYNykBF4r0UR7egg+58XR74EOUuYIVsBBdnfmN seGuE05jDnOcfFOYAzaLbZ0PxZdkJKeqpqYFVTeULU2bK8WDYXRx0N6fK1VIth60A2+KK3IY9 DSkXJYTXoiNYvmt5X1baz4qpjSCMpvaksA+sSPtV/otnTIXDqFB2wiaQBQR0ENhjkSo7pSTYs /e2qNM4va0gZpyqcS6uDwypLAgmo6PVwy/mJPPUZu5EJWACRotH68cBvNWNQcNIINywYzwZJ X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:196309 Archived-At: >> Indeed, you're right. This doesn't make any sense to me at all. Why >> should a non-selected frame care about whether I scrolled a window on >> the selected frame? > > The non-selected frames shouldn't. But the selected frame should, > because it needs to re-evaluate its frame title. And we don't have > any means to tell the display engine to consider only the frame title > on a single frame. We only have the means to tell it which windows on > which frames may need redrawing, but the frame's title doesn't belong > to any window. In redisplay_window we set update_mode_line = (w->update_mode_line || update_mode_lines where w is the window we redisplay because it got scrolled. Later down we have if (update_mode_line && EQ (FRAME_SELECTED_WINDOW (f), window)) { ... gui_consider_frame_title (w->frame); so we do update the frame title after the frame's selected window got scrolled. What am I missing? >> Not in Fmake_frame_invisible AFAICT. >> >> > although the comment seems to hint on the >> > reason. > > What about that comment? doesn't it explain the reason? AFAIU, that > reason is the need to re-evaluate the menu bar. Because we just made a frame invisible? The only thing we could grey out on a menu in such a case is C-x 5 o and that's not what I see. And if it were there, we'd have to handle it in Fmake_frame_visible as well. martin