mirror of
https://github.com/koreader/koreader
synced 2024-10-31 21:20:20 +00:00
43ba8a1173
2 new widgets: - QRWidget, that's like an ImageWidget, but with a text property that will be converted to a QR code ; - QRMessage, that's like an InfoMessage, but shows the message as QR code. Moreover, it adds the ability to export QR codes to the text editor. 1 new plugin: - Generate QR codes from clipboard Changes to text editor plugin: - Add the ability to export QR codes.
115 lines
3.1 KiB
Lua
115 lines
3.1 KiB
Lua
--[[--
|
|
Widget that displays a qr code.
|
|
|
|
It vanishes on key press or after a given timeout.
|
|
|
|
Example:
|
|
local UIManager = require("ui/uimanager")
|
|
local _ = require("gettext")
|
|
local Screen = require("device").screen
|
|
local sample
|
|
sample = QRMessage:new{
|
|
text = _("my message"),
|
|
height = Screen:scaleBySize(400),
|
|
width = Screen:scaleBySize(400),
|
|
timeout = 5, -- This widget will vanish in 5 seconds.
|
|
}
|
|
UIManager:show(sample)
|
|
]]
|
|
|
|
local Blitbuffer = require("ffi/blitbuffer")
|
|
local CenterContainer = require("ui/widget/container/centercontainer")
|
|
local Device = require("device")
|
|
local FrameContainer = require("ui/widget/container/framecontainer")
|
|
local Geom = require("ui/geometry")
|
|
local GestureRange = require("ui/gesturerange")
|
|
local QRWidget = require("ui/widget/qrwidget")
|
|
local InputContainer = require("ui/widget/container/inputcontainer")
|
|
local UIManager = require("ui/uimanager")
|
|
local Input = Device.input
|
|
local Screen = Device.screen
|
|
local Size = require("ui/size")
|
|
|
|
local QRMessage = InputContainer:new{
|
|
modal = true,
|
|
timeout = nil, -- in seconds
|
|
text = nil, -- The text to encode.
|
|
width = nil, -- The width. Keep it nil to use original width.
|
|
height = nil, -- The height. Keep it nil to use original height.
|
|
dismiss_callback = function() end,
|
|
alpha = nil,
|
|
scale_factor = 1,
|
|
}
|
|
|
|
function QRMessage:init()
|
|
if Device:hasKeys() then
|
|
self.key_events = {
|
|
AnyKeyPressed = { { Input.group.Any },
|
|
seqtext = "any key", doc = "close dialog" }
|
|
}
|
|
end
|
|
if Device:isTouchDevice() then
|
|
self.ges_events.TapClose = {
|
|
GestureRange:new{
|
|
ges = "tap",
|
|
range = Geom:new{
|
|
x = 0, y = 0,
|
|
w = Screen:getWidth(),
|
|
h = Screen:getHeight(),
|
|
}
|
|
}
|
|
}
|
|
end
|
|
|
|
local padding = Size.padding.fullscreen
|
|
|
|
local image_widget = QRWidget:new{
|
|
text = self.text,
|
|
width = self.width and (self.width - 2 * padding),
|
|
height = self.height and (self.height - 2 * padding),
|
|
alpha = self.alpha,
|
|
scale_factor = self.scale_factor,
|
|
}
|
|
|
|
local frame = FrameContainer:new{
|
|
background = Blitbuffer.COLOR_WHITE,
|
|
padding = padding,
|
|
image_widget,
|
|
}
|
|
self[1] = CenterContainer:new{
|
|
dimen = Screen:getSize(),
|
|
frame,
|
|
}
|
|
end
|
|
|
|
function QRMessage:onCloseWidget()
|
|
UIManager:setDirty(nil, function()
|
|
return "ui", self[1][1].dimen
|
|
end)
|
|
return true
|
|
end
|
|
|
|
function QRMessage:onShow()
|
|
-- triggered by the UIManager after we got successfully shown (not yet painted)
|
|
UIManager:setDirty(self, function()
|
|
return "ui", self[1][1].dimen
|
|
end)
|
|
if self.timeout then
|
|
UIManager:scheduleIn(self.timeout, function() UIManager:close(self) end)
|
|
end
|
|
return true
|
|
end
|
|
|
|
function QRMessage:onAnyKeyPressed()
|
|
-- triggered by our defined key events
|
|
self.dismiss_callback()
|
|
UIManager:close(self)
|
|
end
|
|
|
|
function QRMessage:onTapClose()
|
|
self.dismiss_callback()
|
|
UIManager:close(self)
|
|
end
|
|
|
|
return QRMessage
|