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mirror of https://github.com/koreader/koreader synced 2024-11-18 03:25:46 +00:00
koreader/plugins/timesync.koplugin/main.lua
NiLuJe fadee1f5dc
Clarify our OOP semantics across the codebase (#9586)
Basically:

* Use `extend` for class definitions
* Use `new` for object instantiations

That includes some minor code cleanups along the way:

* Updated `Widget`'s docs to make the semantics clearer.
* Removed `should_restrict_JIT` (it's been dead code since https://github.com/koreader/android-luajit-launcher/pull/283)
* Minor refactoring of LuaSettings/LuaData/LuaDefaults/DocSettings to behave (mostly, they are instantiated via `open` instead of `new`) like everything else and handle inheritance properly (i.e., DocSettings is now a proper LuaSettings subclass).
* Default to `WidgetContainer` instead of `InputContainer` for stuff that doesn't actually setup key/gesture events.
* Ditto for explicit `*Listener` only classes, make sure they're based on `EventListener` instead of something uselessly fancier.
* Unless absolutely necessary, do not store references in class objects, ever; only values. Instead, always store references in instances, to avoid both sneaky inheritance issues, and sneaky GC pinning of stale references.
  * ReaderUI: Fix one such issue with its `active_widgets` array, with critical implications, as it essentially pinned *all* of ReaderUI's modules, including their reference to the `Document` instance (i.e., that was a big-ass leak).
* Terminal: Make sure the shell is killed on plugin teardown.
* InputText: Fix Home/End/Del physical keys to behave sensibly.
* InputContainer/WidgetContainer: If necessary, compute self.dimen at paintTo time (previously, only InputContainers did, which might have had something to do with random widgets unconcerned about input using it as a baseclass instead of WidgetContainer...).
* OverlapGroup: Compute self.dimen at *init* time, because for some reason it needs to do that, but do it directly in OverlapGroup instead of going through a weird WidgetContainer method that it was the sole user of.
* ReaderCropping: Under no circumstances should a Document instance member (here, self.bbox) risk being `nil`ed!
* Kobo: Minor code cleanups.
2022-10-06 02:14:48 +02:00

73 lines
1.8 KiB
Lua

local Device = require("device")
local command
--- @todo (hzj-jie): Does pocketbook provide ntpdate?
if Device:isKobo() then
command = "ntpd -q -n -p pool.ntp.org"
elseif Device:isCervantes() or Device:isKindle() or Device:isPocketBook() then
command = "ntpdate pool.ntp.org"
else
return { disabled = true, }
end
local InfoMessage = require("ui/widget/infomessage")
local UIManager = require("ui/uimanager")
local WidgetContainer = require("ui/widget/container/widgetcontainer")
local T = require("ffi/util").template
local _ = require("gettext")
local NetworkMgr = require("ui/network/manager")
local TimeSync = WidgetContainer:extend{
name = "timesync",
}
local function currentTime()
local std_out = io.popen("date")
if std_out then
local result = std_out:read("*line")
std_out:close()
if result ~= nil then
return T(_("New time is %1."), result)
end
end
return _("Time synchronized.")
end
local function syncNTP()
local info = InfoMessage:new{
text = _("Synchronizing time. This may take several seconds.")
}
UIManager:show(info)
UIManager:forceRePaint()
local txt
if os.execute(command) ~= 0 then
txt = _("Failed to retrieve time from server. Please check your network configuration.")
else
txt = currentTime()
end
os.execute("hwclock -u -w")
UIManager:close(info)
UIManager:show(InfoMessage:new{
text = txt,
timeout = 3,
})
end
local menuItem = {
text = _("Synchronize time"),
keep_menu_open = true,
callback = function()
NetworkMgr:runWhenOnline(function() syncNTP() end)
end
}
function TimeSync:init()
self.ui.menu:registerToMainMenu(self)
end
function TimeSync:addToMainMenu(menu_items)
menu_items.synchronize_time = menuItem
end
return TimeSync