KennethCheng
28524b4128
feat(storage): Phase 5 C2 — Theme + last_message_id 持久化
- src/storage/state.rs: AppState 加 last_theme (string "system" /
"light" / "dark") + last_message_id (i64);#[serde(default)]
让 legacy state.json(只有 window width/height)也能 forward-
compat parse;3 个 test(含 legacy round-trip)
- src/gotify/api.rs: messages() 加 since: Option<i64> 参数,
since>0 时拼 ?since=N&limit=M
- src/models.rs: try_fetch_initial_data 加 since 参数透传
- src/lib.rs: state_rc: Rc<RefCell<AppState>> 替代只读 initial_state
· 启动读 last_theme 应用到 MainWindow.theme + appearance_index
· HTTP catch-up 用 since=last_message_id;返回的 msgs 推
watermark
· WS drain closure 同步更新 last_message_id(共享 Rc 进 UI
线程 closure)
· on_close_requested 把整个 state clone 一份再 save(state_for_
save Rc 也被 drain 用,不能 hold borrow 同时 serialize)
· 新 callback appearance-changed-persist:Settings → Appearance
radio 改 theme 时立刻写 state.last_theme
- ui/app.slint: MainWindow 加 appearance-changed-persist callback;
SettingsPage 的 appearance-changed 调它
避坑:
- VecModel 不是 Send → last_message_id 维护必须放在 UI 线程的
timer drain closure 里(不是 WS worker),所以走 Rc<RefCell>
共享 + 不需要锁
- on_close_requested 之前用 state_for_save.borrow_mut() 修改然后
borrow() save——drain 也在 borrow_mut() 会死锁(同一 RefCell)。
改成"修改 borrow_mut + save clone",避免同时持有两个 borrow
- AppearanceMode::Dark 的 parse fallback:state.json 写错时不
锁死在 Light
- legacy state.json 没 last_theme / last_message_id 也能正常
parse + 用 default(serde(default) + 1 个测试覆盖)
验证:cargo build / build --release 都 exit 0,0 warning
- cargo test: 15 passed (6 storage unit + 6 api + 3 websocket); 0 failed
- debug 35.56 MB, subsystem = WINDOWS_CUI
- release 9.77 MB, subsystem = WINDOWS_GUI
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