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koreader/frontend/ui/widget/notification.lua

72 lines
2.1 KiB
Lua

local InputContainer = require("ui/widget/container/inputcontainer")
local FrameContainer = require("ui/widget/container/framecontainer")
local CenterContainer = require("ui/widget/container/centercontainer")
local TextWidget = require("ui/widget/textwidget")
local Font = require("ui/font")
local Geom = require("ui/geometry")
local Device = require("ui/device")
local UIManager = require("ui/uimanager")
local HorizontalGroup = require("ui/widget/horizontalgroup")
local Input = require("ui/input")
local Screen = require("ui/screen")
--[[
Widget that displays a tiny notification on top of screen
--]]
local Notification = InputContainer:new{
face = Font:getFace("infofont", 20),
text = "Null Message",
timeout = nil,
margin = 5,
padding = 5,
}
function Notification:init()
if Device:hasKeys() then
self.key_events = {
AnyKeyPressed = { { Input.group.Any }, seqtext = "any key", doc = "close dialog" }
}
end
-- we construct the actual content here because self.text is only available now
local text_widget = TextWidget:new{
text = self.text,
face = self.face
}
local widget_size = text_widget:getSize()
self[1] = CenterContainer:new{
dimen = Geom:new{
w = Screen:getWidth(),
h = Screen:getHeight()/10,
},
FrameContainer:new{
background = 0,
radius = 0,
margin = self.margin,
padding = self.padding,
CenterContainer:new{
dimen = Geom:new{
w = widget_size.w,
h = widget_size.h
},
text_widget,
}
}
}
end
function Notification:onShow()
-- triggered by the UIManager after we got successfully shown (not yet painted)
if self.timeout then
UIManager:scheduleIn(self.timeout, function() UIManager:close(self) end)
end
return true
end
function Notification:onAnyKeyPressed()
-- triggered by our defined key events
UIManager:close(self)
return true
end
return Notification