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refatoring: lazy loading of packages

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chrox
2014-10-03 16:11:53 +08:00
parent a491594775
commit 14e2bf3d69
6 changed files with 22 additions and 9 deletions
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17
frontend/ui/device.lua
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@@ -1,8 +1,4 @@
local AndroidPowerd = require("ui/device/androidpowerd")
local KindlePowerD = require("ui/device/kindlepowerd")
local isAndroid, android = pcall(require, "android")
local KoboPowerD = require("ui/device/kobopowerd")
local BasePowerD = require("ui/device/basepowerd")
local lfs = require("libs/libkoreader-lfs")
local Screen = require("ui/device/screen")
local util = require("ffi/util")
@@ -288,12 +284,16 @@ function Device:getPowerDevice()
else
local model = self:getModel()
if model == "KindleTouch" or model == "KindlePaperWhite" or model == "KindlePaperWhite2" then
local KindlePowerD = require("ui/device/kindlepowerd")
self.powerd = KindlePowerD:new{model = model}
elseif self:isKobo() then
local KoboPowerD = require("ui/device/kobopowerd")
self.powerd = KoboPowerD:new()
elseif self.isAndroid then
local AndroidPowerd = require("ui/device/androidpowerd")
self.powerd = AndroidPowerd:new()
else -- emulated FrontLight
local BasePowerD = require("ui/device/basepowerd")
self.powerd = BasePowerD:new()
end
end
@@ -322,4 +322,13 @@ function Device:isSpecialOffers()
return self.is_special_offers
end
-- FIXME: this is a dirty hack, normally we don't need to get power device this early,
-- but Kobo devices somehow may need to init the frontlight module at startup?
-- because `kobolight = require("ffi/kobolight")` used to be in the `koreader-base` script
-- and run as the first line of koreader script no matter which device you are running on,
-- which is utterly ugly. So I refactored it into the `init` method of `kobopowerd` and
-- `kobolight` will be init here. It's pretty safe to comment this line for non-kobo devices
-- so if kobo users find this line is useless, please don't hesitate to get rid of it.
local dummy_powerd = Device:getPowerDevice()
return Device