2
0
mirror of https://github.com/koreader/koreader synced 2024-10-31 21:20:20 +00:00
koreader/frontend/ui/reader/readerrotation.lua
HW 2154e7e852 Further refactoring
This should finish the work to make all globals to local variables.
That allows LuaJIT to properly compile things by interning the
references to the relevant parts (rather than looking up globals
all the time which stops a trace).
2013-10-22 17:11:31 +02:00

79 lines
1.9 KiB
Lua

local InputContainer = require("ui/widget/container/inputcontainer")
local Screen = require("ui/screen")
local Geom = require("ui/geometry")
local Device = require("ui/device")
local Event = require("ui/event")
local GestureRange = require("ui/gesturerange")
local _ = require("gettext")
local ReaderRotation = InputContainer:new{
ROTATE_ANGLE_THRESHOLD = 15,
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
if Device:isTouchDevice() then
self.ges_events = {
RotateGes = {
GestureRange:new{
ges = "rotate",
range = Geom:new{
x = 0, y = 0,
w = Screen:getWidth(),
h = Screen:getHeight(),
}
}
},
TwoFingerPanRelease = {
GestureRange:new{
ges = "two_finger_pan_release",
range = Geom:new{
x = 0, y = 0,
w = Screen:getWidth(),
h = Screen:getHeight(),
}
}
}
}
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
function ReaderRotation:onRotateGes(arg, ges)
self.rotate_angle = ges.angle
return true
end
function ReaderRotation:onTwoFingerPanRelease(arg, ges)
if self.rotate_angle and self.rotate_angle > self.ROTATE_ANGLE_THRESHOLD then
if Screen:getScreenMode() == "portrait" then
self.ui:handleEvent(Event:new("SetScreenMode", "landscape"))
else
self.ui:handleEvent(Event:new("SetScreenMode", "portrait"))
end
self.rotate_angle = nil
end
end
return ReaderRotation