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bug#57476: 29.0.50; Mouse wheel event ignored on Lucid build
From: |
Stephen Berman |
Subject: |
bug#57476: 29.0.50; Mouse wheel event ignored on Lucid build |
Date: |
Tue, 30 Aug 2022 12:41:07 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
On Tue, 30 Aug 2022 18:15:29 +0800 Po Lu <luangruo@yahoo.com> wrote:
> Stephen Berman <stephen.berman@gmx.net> writes:
>
>> 1.79769e+308
>
> Please instrument this piece of xterm.c, around line 20724, as follows:
>
> xi_reset_scroll_valuators_for_device_id (dpyinfo, enter->deviceid,
> true);
> #endif
> printf ("Enter %d %d\n", enter->mode, enter->detail); <===
>
> {
> #ifdef HAVE_XWIDGETS
> struct xwidget_view *xwidget_view = xwidget_view_from_window
> (enter->event);
>
> and this piece of the same function, around line 20843, as follows:
>
> if (device)
> xi_report_motion_window_clear (device);
> printf ("Leave %d %d\n", leave->mode, leave_detail); <====
^^^^^^^^^^^^
This failed to build; I assume you meant leave->detail, which did build.
> and see what is printed as you move the mouse wheel.
The shell output looks like this:
Enter 0 3
Leave 1 0
Enter 2 0
Leave 1 0
Enter 2 0
Leave 1 0
Enter 2 0
Leave 1 0
... (and so on)
> Should it print "Enter" and "Leave" repetitively, please try the
> following patch:
>
> diff --git a/src/xfns.c b/src/xfns.c
> index 0b1f707e9f..bebac747fb 100644
> --- a/src/xfns.c
> +++ b/src/xfns.c
> @@ -3996,6 +3996,9 @@ x_window (struct frame *f, long window_prompting)
> /* Make all the standard events reach the Emacs frame. */
> attributes.event_mask = STANDARD_EVENT_SET;
>
> + if (FRAME_DISPLAY_INFO (f)->supports_xi2)
> + attributes.event_mask &= ~(ButtonPressMask | ButtonReleaseMask);
> +
> #ifdef HAVE_X_I18N
> if (FRAME_XIC (f))
> {
>
> Thanks in advance.
>
> P.S. I can't see anything wrong with that patch at first glance;
> however, it is a big change to very old code, so please report any
> issues that show up with it applied.
After applying the patch and rebuilding, scrolling the mouse wheel is
still a no-op.
Steve Berman
- bug#57476: 29.0.50; Mouse wheel event ignored on Lucid build, Stephen Berman, 2022/08/29
- bug#57476: 29.0.50; Mouse wheel event ignored on Lucid build, Po Lu, 2022/08/29
- bug#57476: 29.0.50; Mouse wheel event ignored on Lucid build, Po Lu, 2022/08/29
- bug#57476: 29.0.50; Mouse wheel event ignored on Lucid build, Stephen Berman, 2022/08/30
- bug#57476: 29.0.50; Mouse wheel event ignored on Lucid build, Po Lu, 2022/08/30
- bug#57476: 29.0.50; Mouse wheel event ignored on Lucid build,
Stephen Berman <=
- bug#57476: 29.0.50; Mouse wheel event ignored on Lucid build, Po Lu, 2022/08/30
- bug#57476: 29.0.50; Mouse wheel event ignored on Lucid build, Stephen Berman, 2022/08/30
- bug#57476: 29.0.50; Mouse wheel event ignored on Lucid build, Po Lu, 2022/08/30
- bug#57476: 29.0.50; Mouse wheel event ignored on Lucid build, Stephen Berman, 2022/08/30
- bug#57476: 29.0.50; Mouse wheel event ignored on Lucid build, Po Lu, 2022/08/30
- bug#57476: 29.0.50; Mouse wheel event ignored on Lucid build, Stephen Berman, 2022/08/31