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

37 lines
992 B
Lua

local InputContainer = require("ui/widget/container/inputcontainer")
local Device = require("device")
local Event = require("ui/event")
local _ = require("gettext")
Clarify our OOP semantics across the codebase (#9586) Basically: * Use `extend` for class definitions * Use `new` for object instantiations That includes some minor code cleanups along the way: * Updated `Widget`'s docs to make the semantics clearer. * Removed `should_restrict_JIT` (it's been dead code since https://github.com/koreader/android-luajit-launcher/pull/283) * Minor refactoring of LuaSettings/LuaData/LuaDefaults/DocSettings to behave (mostly, they are instantiated via `open` instead of `new`) like everything else and handle inheritance properly (i.e., DocSettings is now a proper LuaSettings subclass). * Default to `WidgetContainer` instead of `InputContainer` for stuff that doesn't actually setup key/gesture events. * Ditto for explicit `*Listener` only classes, make sure they're based on `EventListener` instead of something uselessly fancier. * Unless absolutely necessary, do not store references in class objects, ever; only values. Instead, always store references in instances, to avoid both sneaky inheritance issues, and sneaky GC pinning of stale references. * ReaderUI: Fix one such issue with its `active_widgets` array, with critical implications, as it essentially pinned *all* of ReaderUI's modules, including their reference to the `Document` instance (i.e., that was a big-ass leak). * Terminal: Make sure the shell is killed on plugin teardown. * InputText: Fix Home/End/Del physical keys to behave sensibly. * InputContainer/WidgetContainer: If necessary, compute self.dimen at paintTo time (previously, only InputContainers did, which might have had something to do with random widgets unconcerned about input using it as a baseclass instead of WidgetContainer...). * OverlapGroup: Compute self.dimen at *init* time, because for some reason it needs to do that, but do it directly in OverlapGroup instead of going through a weird WidgetContainer method that it was the sole user of. * ReaderCropping: Under no circumstances should a Document instance member (here, self.bbox) risk being `nil`ed! * Kobo: Minor code cleanups.
2 years ago
local ReaderRotation = InputContainer:extend{
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" },
event = "Rotate",
args = -90
},
RotateRight = {
{ "K" },
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