Breadway/bread-ecosystem
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Add bread_theme::shell manifest system (Phase 1)

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Implements the shell theme manifest layer from THEME_SYSTEM_PLAN.md
§4-5: ShellTheme/WindowSpec/Slots/Tokens/LayerRule types, TOML
discovery (user -> system -> compiled-in builtin), one level of
`extends` deep-merge, deny_unknown_fields validation naming the
offending key, slot module-name validation, and css() token
substitution with an extra.css overlay. load() never fails, falling
back to the compiled-in builtin and logging once.

Ships exactly one builtin manifest, liquid-motion, describing
breadbar/breadbox as they exist today (not the design-doc demo, which
disagrees with the code on bar side margin, launcher geometry, and the
easing curves). Compositor rules and surface specs are keyed by
layer-shell namespace and cover all five breadbar namespaces plus
breadbox/breadbar-panel/breadbar-dismiss.

watch() is gated behind the existing `gtk` feature (gio::FileMonitor
is a gtk4 dependency); the rest of the module is gtk-free so bread and
breadcrumbs can validate a theme without linking GTK. No consumer
changes — breadbar/breadbox still use their own hardcoded values.
This commit is contained in:
Breadway 2026-08-23 15:21:08 +08:00
parent 347f356b1d
commit 96aa6a513b
10 changed files with 2097 additions and 0 deletions
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Cargo.lock generated
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@ -257,11 +257,14 @@ dependencies = [
name = "bread-theme"
version = "0.7.4"
dependencies = [
"anyhow",
"dirs 5.0.1",
"gtk4",
"libadwaita",
"serde",
"serde_json",
"toml 0.8.23",
"tracing",
]
[[package]]