fennel_common/
events.rs

1use sdl3::{
2    keyboard::{Keycode, Mod, Scancode},
3    mouse::{MouseButton, MouseState, MouseWheelDirection},
4};
5
6pub struct KeyboardEvent {
7    pub timestamp: u64,
8    pub window_id: u32,
9    pub keycode: Option<Keycode>,
10    pub scancode: Option<Scancode>,
11    pub keymod: Mod,
12    pub repeat: bool,
13    pub which: u32,
14    pub raw: u16,
15}
16
17pub struct MouseMotionEvent {
18    pub timestamp: u64,
19    pub window_id: u32,
20    pub which: u32,
21    pub mousestate: MouseState,
22    pub x: f32,
23    pub y: f32,
24    pub xrel: f32,
25    pub yrel: f32,
26}
27
28pub struct MouseClickEvent {
29    pub timestamp: u64,
30    pub window_id: u32,
31    pub which: u32,
32    pub mouse_btn: MouseButton,
33    pub clicks: u8,
34    pub x: f32,
35    pub y: f32,
36}
37
38pub struct MouseWheelEvent {
39    pub timestamp: u64,
40    pub window_id: u32,
41    pub which: u32,
42    pub x: f32,
43    pub y: f32,
44    pub direction: MouseWheelDirection,
45    pub mouse_x: f32,
46    pub mouse_y: f32,
47}
48
49#[async_trait::async_trait]
50pub trait WindowEventHandler: Send + Sync {
51    type Host;
52
53    fn update(&self, host: &mut Self::Host) -> anyhow::Result<()>;
54    fn draw(&self, host: &mut Self::Host) -> anyhow::Result<()>;
55
56    fn key_down_event(&self, _host: &mut Self::Host, _event: KeyboardEvent) -> anyhow::Result<()> {
57        Ok(())
58    }
59    fn key_up_event(&self, _host: &mut Self::Host, _event: KeyboardEvent) -> anyhow::Result<()> {
60        Ok(())
61    }
62    fn mouse_motion_event(
63        &self,
64        _host: &mut Self::Host,
65        _event: MouseMotionEvent,
66    ) -> anyhow::Result<()> {
67        Ok(())
68    }
69    fn mouse_button_down_event(
70        &self,
71        _host: &mut Self::Host,
72        _event: MouseClickEvent,
73    ) -> anyhow::Result<()> {
74        Ok(())
75    }
76    fn mouse_button_up_event(
77        &self,
78        _host: &mut Self::Host,
79        _event: MouseClickEvent,
80    ) -> anyhow::Result<()> {
81        Ok(())
82    }
83    fn mouse_wheel_event(
84        &self,
85        _host: &mut Self::Host,
86        _event: MouseWheelEvent,
87    ) -> anyhow::Result<()> {
88        Ok(())
89    }
90}
fennel_common/events.rs

fennel_common/
events.rs
