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koreader/frontend/apps/reader/modules/readerrotation.lua

38 lines
1.1 KiB
Lua

local InputContainer = require("ui/widget/container/inputcontainer")
local Screen = require("device").screen
local Geom = require("ui/geometry")
local Device = require("device")
local Event = require("ui/event")
local GestureRange = require("ui/gesturerange")
local _ = require("gettext")
local ReaderRotation = InputContainer:new{
current_rotation = 0
}
function ReaderRotation:init()
if Device:hasKeyboard() then
self.key_events = {
-- these will all generate the same event, just with different arguments
RotateLeft = {
{"J"},
doc = "rotate left by 90 degrees",
event = "Rotate", args = -90 },
RotateRight = {
{"K"},
doc = "rotate right by 90 degrees",
event = "Rotate", args = 90 },
}
end
end
-- TODO: reset rotation on new document, maybe on new page?
function ReaderRotation:onRotate(rotate_by)
self.current_rotation = (self.current_rotation + rotate_by) % 360
self.ui:handleEvent(Event:new("RotationUpdate", self.current_rotation))
return true
end
return ReaderRotation