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koreader/frontend/device/sdl/powerd.lua
NiLuJe 7e98b9de4b
PM: Minor refactor to suspend/resume code flow (#10426)
Make sure we only send Suspend/Resume events when we *actually* suspend/resume. This is done via the Device `_beforeSuspend`/`_afterResume` methods, and those were called by the *input handlers*, not the PM logic; which means they would fire, while the PM logic could actually take a smarter decision and *not* do what the event just sent implied ;).

(i.e., sleep with a cover -> suspend + actual suspend, OK; but if you then resume with a button -> input assumes resume, but PM will actually suspend again!).

Existing design issue made more apparent by #9448 ;).

Also fixes/generalizes a few corner-cases related to screen_saver_lock handling (e.g., don't allow USBMS during a lock).

And deal with the fallout of the main change to the Kobo frontlight ramp behavior ;).
2023-05-18 23:13:43 +02:00

53 lines
1.2 KiB
Lua

local BasePowerD = require("device/generic/powerd")
local SDL = require("ffi/SDL2_0")
local SDLPowerD = BasePowerD:new{
-- these values are just used on the emulator
hw_intensity = 50,
fl_min = 0,
fl_max = 100,
fl_warmth = 50,
fl_warmth_min = 0,
fl_warmth_max = 100,
}
function SDLPowerD:frontlightIntensityHW()
return self.hw_intensity
end
function SDLPowerD:setIntensityHW(intensity)
require("logger").info("set brightness to", intensity)
self.hw_intensity = intensity or self.hw_intensity
end
function SDLPowerD:frontlightWarmthHW()
return self.fl_warmth
end
function SDLPowerD:getCapacityHW()
local _, _, _, percent = SDL.getPowerInfo()
-- -1 looks a bit odd compared to 0
if percent == -1 then return 0 end
return percent
end
function SDLPowerD:isChargingHW()
local ok, charging = SDL.getPowerInfo()
if ok then return charging end
return false
end
function SDLPowerD:beforeSuspend()
-- Inhibit user input and emit the Suspend event.
self.device:_beforeSuspend()
end
function SDLPowerD:afterResume()
self:invalidateCapacityCache()
-- Restore user input and emit the Resume event.
self.device:_afterResume()
end
return SDLPowerD