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Make layer-shell edge capture less fragile #447

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Make layer-shell edge capture less fragile #447

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8 changes: 6 additions & 2 deletions input-capture/src/layer_shell.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -144,6 +144,10 @@ impl AsRawFd for Inner {

pub struct LayerShellInputCapture(AsyncFd<Inner>);

// A 1px layer can miss edge entry on compositors that clamp cursor
// coordinates just inside the logical output bounds.
const EDGE_CAPTURE_THICKNESS: u32 = 4;

struct Window {
buffer: wl_buffer::WlBuffer,
surface: WlSurface,
Expand All @@ -163,8 +167,8 @@ impl Window {
let g = &state.globals;

let (width, height) = match pos {
Position::Left | Position::Right => (1, size.1 as u32),
Position::Top | Position::Bottom => (size.0 as u32, 1),
Position::Left | Position::Right => (EDGE_CAPTURE_THICKNESS, size.1 as u32),
Position::Top | Position::Bottom => (size.0 as u32, EDGE_CAPTURE_THICKNESS),
};
let mut file = tempfile::tempfile().unwrap();
draw(&mut file, (width, height));
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