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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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input.h
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@ -21,6 +21,8 @@
* Mouse buttons are in the range 0x110 - 0x11f, with joystick defines
* starting at 0x120.
*/
#define BTN_WHEEL_BACK 0x11c
#define BTN_WHEEL_FORWARD 0x11d
#define BTN_WHEEL_LEFT 0x11e
#define BTN_WHEEL_RIGHT 0x11f