redbear-power: v1.6 — Battery tab (power_supply)
Adds the 5th tab in the multi-view system: Battery, reading
power_supply data from /sys/class/power_supply/BAT*/ on Linux hosts.
New module battery.rs (128 lines):
- BatteryInfo struct with 15 fields (available, name, status,
capacity_percent, energy_now_wh, energy_full_wh, power_now_w,
voltage_now_v, time_to_empty_s, time_to_full_s, cycle_count,
technology, model_name, manufacturer, serial_number)
- find_battery_dir() scans /sys/class/power_supply/ for type==Battery
- read() populates all fields with inline µWh→Wh, µV→V conversion
- health_percent() computes current_charge / full_charge ratio
- display/display_u32/display_u64/display_f64 helpers
- format_duration(secs) — Xh Ym / Ym Zs / Zs
- RBP_BATTERY_PATH env override (testing + dev workflow)
Updated app.rs:
- New field battery: BatteryInfo, initialized once in App::new()
- TabId::Battery variant (5th tab)
- TabId::next() cycles PerCpu → System → Info → Motherboard → Battery
Updated render.rs:
- New render_battery_panel(app, focused) with 3 section blocks
(Identity / State / Power). If !available, shows
'(no battery detected — /sys/class/power_supply/BAT* not present)'.
- render_tab_bar() updated for 5 tabs with hotkey 1/2/3/4/5 mapping
- render_once now dumps Battery panel for headless verification
Updated main.rs:
- mod battery; declaration
- New dispatch arm TabId::Battery => render_battery_panel
- Hotkey 5 jumps to Battery tab directly
- render_battery_panel added to imports
Mock battery smoke test (RBP_BATTERY_PATH=/tmp/fake-battery):
- Manufacturer: MSI, Model: MPG X670E, Technology: Li-ion, Cycles: 127
- Status: Discharging, Capacity: 67%, Health: 67%
- Energy: 33.50 Wh / 50.00 Wh (µWh→Wh conversion verified)
- Power: 8.50 W, Voltage: 12.50 V (µV→V conversion verified)
- Time to empty: 3h 0m, Time to full: ? (correctly hidden when 0)
On desktop (no battery):
(no battery detected — /sys/class/power_supply/BAT* not present)
Source state: 4359 LoC across 15 modules (v1.5: 4117/14).
Redox stripped: 3.8 MB (SHA256 c6fca172...).
Docs: improvement plan §30, CONSOLE-TO-KDE §3.3.2 v1.6,
RATATUI-APP-PATTERNS §13.18 + §14.
vasilito
a4dc44a8e0