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input: Add a scroll_factor config option

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This is not a setting handled by libinput; we have to scale the
scrolling ourselves.

This should match the behavior of the `scroll_factor` defined in
sway-input(5).
This commit is contained in:
Ian Douglas Scott 2023-09-01 12:33:55 -07:00
parent 511ee8d87a
commit 20159a6c8c
4 changed files with 39 additions and 6 deletions
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15
src/config/mod.rs
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@ -412,13 +412,26 @@ impl Config {
}
pub fn read_device(&self, device: &mut InputDevice) {
let (device_config, default_config) = self.get_device_config(device);
input_config::update_device(device, device_config, default_config);
}
pub fn scroll_factor(&self, device: &InputDevice) -> f64 {
let (device_config, default_config) = self.get_device_config(device);
input_config::get_config(device_config, default_config, |x| {
x.scroll_config.as_ref()?.scroll_factor
})
.map_or(1.0, |x| x.0)
}
fn get_device_config(&self, device: &InputDevice) -> (Option<&InputConfig>, &InputConfig) {
let default_config = if device.config_tap_finger_count() > 0 {
&self.input_touchpad
} else {
&self.input_default
};
let device_config = self.input_devices.get(device.name());
input_config::update_device(device, device_config, default_config);
(device_config, default_config)
}
}