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Re: Support fullscreen values fullheight and fullwidth on pgtk
From: |
Po Lu |
Subject: |
Re: Support fullscreen values fullheight and fullwidth on pgtk |
Date: |
Thu, 02 Jun 2022 14:00:12 +0800 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.91 (gnu/linux) |
Florian Rommel <mail@florommel.de> writes:
> This is a suggestion to support the values 'fullheight and 'fullwidth
> for the fullscreen frame parameter on pgtk.
> Background: I undecorate the frame when it is maximized or "tiled" (in
> Gnome) to the left or right (-> fullheight, currently not supported on
> pgtk - only with the X backend).
>
> The patch uses the GDK_WINDOW_STATE_*_TILED and
> GDK_WINDOW_STATE_*_RESIZABLE flags that are available since GTK
> 3.22.23. A value of 'fullheight is set if the top and the bottom edges
> are marked as tiled and not resizable; 'fullwidth is set if the left
> and right edges are marked as tiled and not resizable.
> So, is the introduced behavior correct? I think it is consistent with
> the description in the Emacs manual: "a fullwidth frame is as wide as
> possible, a fullheight frame is as tall as possible".
It seems reasonable enough to me, though GTK sets those state flags in
situations in some situations that don't exactly correspond to
_NET_WM_STATE_MAXIMIZED_HORZ and _NET_WM_STATE_MAXIMIZED_VERT, which are
used by the X build.
> On Gnome, it works as expected. Other desktop environments, such as
> KDE, Xfce or tiling window managers don't seem to support the
> GTK_WINDOW_STATE_*_{TILED/RESIZABLE} flags, so fullheight and fullwidth
> will still never be set there (however, this also seems to be the case
> with the Emacs X backend).
>
> Regards,
> Flo
Thanks, some comments below.
> + GdkWindowState new_state = event->window_state.new_window_state;
> union buffered_input_event inev;
IMO it would look better to simply write:
GdkWindowState new_state;
and then place
new_state = event->window_state.new_window_state;
after all the variable declarations.
> +#if GTK_CHECK_VERSION (3, 22, 23)
> + else if ((new_state & GDK_WINDOW_STATE_TOP_TILED) &&
> + (new_state & GDK_WINDOW_STATE_BOTTOM_TILED) &&
> + !(new_state & GDK_WINDOW_STATE_TOP_RESIZABLE) &&
> + !(new_state & GDK_WINDOW_STATE_BOTTOM_RESIZABLE))
> + store_frame_param (f, Qfullscreen, Qfullheight);
> + else if ((new_state & GDK_WINDOW_STATE_LEFT_TILED) &&
> + (new_state & GDK_WINDOW_STATE_RIGHT_TILED) &&
> + !(new_state & GDK_WINDOW_STATE_LEFT_RESIZABLE) &&
> + !(new_state & GDK_WINDOW_STATE_RIGHT_RESIZABLE))
> + store_frame_param (f, Qfullscreen, Qfullwidth);
> +#endif
I think we should just bump the version of GTK required for PGTK to
3.22, since users of older versions can use the regular X build.
Our coding style is also to place the "&&" on the next line. Here and
in other places, write:
if (very_long_condition_here
&& other_very_long_condition_here)
do_something ();
instead of:
if (very_long_condition_here &&
other_very_long_condition_here)
do_something ();
You also forgot to implement setting the `fullwidth' and `fullheight'
states. It should be easy to implement in `set_fullscreen_state',
though I admit I haven't looked very closely at that.
- Support fullscreen values fullheight and fullwidth on pgtk, Florian Rommel, 2022/06/02
- Re: Support fullscreen values fullheight and fullwidth on pgtk,
Po Lu <=
- Re: Support fullscreen values fullheight and fullwidth on pgtk, Florian Rommel, 2022/06/03
- Re: Support fullscreen values fullheight and fullwidth on pgtk, Po Lu, 2022/06/03
- Re: Support fullscreen values fullheight and fullwidth on pgtk, Florian Rommel, 2022/06/03
- Re: Support fullscreen values fullheight and fullwidth on pgtk, Po Lu, 2022/06/03
- Re: Support fullscreen values fullheight and fullwidth on pgtk, Florian Rommel, 2022/06/04
- Re: Support fullscreen values fullheight and fullwidth on pgtk, Po Lu, 2022/06/04
- Re: Support fullscreen values fullheight and fullwidth on pgtk, Eli Zaretskii, 2022/06/05
- Re: Support fullscreen values fullheight and fullwidth on pgtk, Florian Rommel, 2022/06/05