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input: don't map wheel events to BTN_{BACK,FORWARD}

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BTN_BACK and BTN_FORWARD are separate buttons. The scroll wheel don't
have any button mappings in libinput/wayland, so make up our own
defines.

This allows us to map them in mouse bindings.

Also expose BTN_WHEEL_{LEFT,RIGHT}. These were already defined, and
used, internally, to handle wheel tilt events. With this, they can
also be used in mouse bindings.

Finally, fix encoding used for BTN_{BACK,FORWARD} when sending mouse
button events to the client application. Before this, they were mapped
to buttons 4/5. But, button 4/5 are for the scroll wheel, and as
mentioned above, BTN_{BACK,FORWARD} are not the same as scroll wheel
"buttons".

Closes #1763
This commit is contained in:
Daniel Eklöf 2024-07-13 10:24:11 +02:00
parent 15c0078c2d
commit 1136108c97
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7 changed files with 59 additions and 27 deletions
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CHANGELOG.md
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@ -89,9 +89,19 @@
and background are the same), the cursor will instead be rendered
using the default foreground and background colors, inverted
([#1761][1761]).
* Mouse wheel events now generate `BTN_WHEEL_BACK` and
`BTN_WHEEL_FORWARD` "button presses", instead of `BTN_BACK` and
`BTN_FORWARD`. The default bindings have been updated, and
`scrollback-up-mouse`, `scrollback-down-mouse`, `font-increase` and
`font-decrease` now use the new button names.
This change allow users to separate physical mouse buttons that
_also_ generates `BTN_BACK` and `BTN_FORWARD`, from wheel scrolling
([#1763][1763]).
[1701]: https://codeberg.org/dnkl/foot/issues/1701
[1761]: https://codeberg.org/dnkl/foot/issues/1761
[1763]: https://codeberg.org/dnkl/foot/issues/1763
### Deprecated
@ -118,6 +128,8 @@
foot config has not set any custom cursor colors (i.e. without
OSC-12, inverted fg/bg would be used).
* Wrong color used when drawing the unfocused, hollow cursor.
* Encoding of `BTN_BACK` and `BTN_FORWARD`, when sending a mouse input
escape sequence to the terminal application.
[1694]: https://codeberg.org/dnkl/foot/issues/1694
[1717]: https://codeberg.org/dnkl/foot/issues/1717