mirror of
https://github.com/koreader/koreader
synced 2024-11-13 19:11:25 +00:00
89 lines
2.5 KiB
Lua
89 lines
2.5 KiB
Lua
local BasePowerD = require("device/generic/powerd")
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local _, android = pcall(require, "android")
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local AndroidPowerD = BasePowerD:new{
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fl_min = 0,
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fl_max = 100,
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}
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-- Let the footer know of the change
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local function broadcastLightChanges()
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if package.loaded["ui/uimanager"] ~= nil then
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local Event = require("ui/event")
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local UIManager = require("ui/uimanager")
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UIManager:broadcastEvent(Event:new("FrontlightStateChanged"))
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end
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end
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function AndroidPowerD:frontlightIntensityHW()
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return math.floor(android.getScreenBrightness() / self.bright_diff * self.fl_max)
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end
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function AndroidPowerD:setIntensityHW(intensity)
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-- if frontlight switch was toggled of, turn it on
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android.enableFrontlightSwitch()
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self.fl_intensity = intensity
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android.setScreenBrightness(math.floor(intensity * self.bright_diff / self.fl_max))
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end
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function AndroidPowerD:init()
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local min_bright = android.getScreenMinBrightness()
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self.bright_diff = android.getScreenMaxBrightness() - min_bright
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-- if necessary scale fl_min:
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-- do not use fl_min==0 if getScreenMinBrightness!=0,
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-- because intenstiy==0 would mean to use system intensity
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if min_bright ~= self.fl_min then
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self.fl_min = math.ceil(min_bright * self.bright_diff / self.fl_max)
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end
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if self.device:hasNaturalLight() then
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self.fl_warmth_min = android.getScreenMinWarmth()
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self.fl_warmth_max = android.getScreenMaxWarmth()
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self.warm_diff = self.fl_warmth_max - self.fl_warmth_min
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self.fl_warmth = self:getWarmth()
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end
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end
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function AndroidPowerD:setWarmth(warmth)
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self.fl_warmth = warmth
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android.setScreenWarmth(warmth / self.warm_diff)
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end
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function AndroidPowerD:getWarmth()
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return android.getScreenWarmth() * self.warm_diff
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end
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function AndroidPowerD:getCapacityHW()
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return android.getBatteryLevel()
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end
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function AndroidPowerD:isChargingHW()
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return android.isCharging()
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end
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function AndroidPowerD:turnOffFrontlightHW()
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if not self:isFrontlightOnHW() then
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return
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end
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android.setScreenBrightness(self.fl_min)
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self.is_fl_on = false
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broadcastLightChanges()
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end
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function AndroidPowerD:turnOnFrontlightHW()
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if self:isFrontlightOn() and self:isFrontlightOnHW() then
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return
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end
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-- on devices with a software frontlight switch (e.g Tolinos), enable it
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android.enableFrontlightSwitch()
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android.setScreenBrightness(math.floor(self.fl_intensity * self.bright_diff / self.fl_max))
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self.is_fl_on = true
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broadcastLightChanges()
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end
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return AndroidPowerD
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