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koreader/frontend/ui/widget/notification.lua
Hans-Werner Hilse 3066c86e38 Refactoring hardware abstraction
This is a major overhaul of the hardware abstraction layer.
A few notes:

General platform distinction happens in
  frontend/device.lua
which will delegate everything else to
  frontend/device/<platform_name>/device.lua
which should extend
  frontend/device/generic/device.lua

Screen handling is implemented in
  frontend/device/screen.lua
which includes the *functionality* to support device specifics.
Actually setting up the device specific functionality, however,
is done in the device specific setup code in the relevant
device.lua file.

The same goes for input handling.
2014-11-02 21:19:04 +01:00

73 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("device")
local UIManager = require("ui/uimanager")
local HorizontalGroup = require("ui/widget/horizontalgroup")
local Input = require("device").input
local Screen = require("device").screen
local Blitbuffer = require("ffi/blitbuffer")
--[[
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 = Blitbuffer.COLOR_WHITE,
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