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MISSING.md listed the border frame's bottom/left/right strips as
staying square while the top one (and the titlebar above it) rounds --
"unrelated to client content rounding... not attempted." The left/
right strips genuinely can't participate (border_strips' geometry has
them span only the height between the top and bottom strips, no
corner to round), but the bottom strip is exactly the same shape as
the top one and had no reason left to stay square.
decoration::render_border_bottom mirrors render_border_top exactly
(round_bottom_corners mirrors round_top_corners), cached the same way
in a new border_bottom_decorations map, and drawn in both render loops
via the same all-or-nothing occlusion check the top strip already
uses - pulled out of the left/right strips' per-fragment occlusion
splitting into its own dedicated bitmap path, matching top's existing
trade-off (cropping a rounded bitmap's source rect per fragment is
real extra work for a strip this thin) rather than inventing a new one.
One real bug caught before it shipped: round_bottom_corners' corner-
centre math (height - r - 1) panics on unsigned underflow whenever the
radius clamp lands on the strip's own full height (a real, common case
- a 2px-thick test strip hits it immediately). Fixed by computing the
centre as a signed offset instead, mirroring how the existing dx/dy
distance math already avoids the same class of issue.
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Platform::close only ever called w.toplevel(), which is None for an
XWayland window - closing one (the WM's own close binding, or `srd
dispatch close`) silently did nothing at all, on both udev and winit.
Found live: a leftover untitled fullscreen window wouldn't close via
srd dispatch close even after several seconds, tracing back to this.
Fixed by falling back to X11Surface::close() when there's no xdg
toplevel - it already handles both cases smithay-side (a polite
WM_DELETE_WINDOW for a cooperating client, outright destroy_window for
one that doesn't support it), so no new logic was needed, just calling
it.
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~17 comments across the codebase still pointed at udev.rs/winit.rs/
state.rs by their old flat-file names after those became udev/,
winit/, state/ directories - found while auditing what this work
rushed, since the split verification (function/struct-name diffing,
full test suite) checked structural correctness but never comment
accuracy. Updated each to either the specific new file (e.g. "see
state.rs's REPEAT_DELAY" -> "see state/mod.rs's REPEAT_DELAY",
"udev.rs's monitors()" -> "udev/platform.rs's monitors()") or the bare
module name where the reference was already generic ("the udev/winit
backends", not a specific location).
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Pure reorganization, no behavior change - verified by diffing the
function-name and struct-name sets before/after (both identical) plus
a full cargo test pass. mod.rs keeps the module doc comment, imports,
WaylandPlatform's struct definition, and TARGET_FRAME_TIME, plus mod
declarations. The rest splits by concern:
- connect.rs: connect(), the ~200-line setup/init function.
- run.rs: accept_clients, pump_winit - the small per-poll pair.
- render.rs: render_frame, the per-frame render loop (left as one
intact ~330-line function, same reasoning as udev's render.rs: its
structure is deliberate and already documented inline, not a target
for further decomposition in a pure reorganization pass).
- capture.rs: capture_offscreen, the screencopy path.
- events.rs: handle_winit_event.
- platform.rs: `impl Platform for WaylandPlatform`.
No tests module existed in the original file, so none was split out.
A handful of methods/functions (accept_clients, pump_winit,
render_frame, capture_offscreen, handle_winit_event) went from private
to pub(super): called across what are now sibling submodules, which
Rust's privacy model doesn't let see each other's private items.
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