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mirror of https://github.com/koreader/koreader synced 2024-11-10 01:10:34 +00:00
koreader/frontend/ui/widget/linkbox.lua
NiLuJe fadee1f5dc
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.
2022-10-06 02:14:48 +02:00

63 lines
1.5 KiB
Lua

local Blitbuffer = require("ffi/blitbuffer")
local Device = require("device")
local Geom = require("ui/geometry")
local GestureRange = require("ui/gesturerange")
local InputContainer = require("ui/widget/container/inputcontainer")
local Size = require("ui/size")
local UIManager = require("ui/uimanager")
local Screen = Device.screen
local LinkBox = InputContainer:extend{
box = nil,
color = Blitbuffer.COLOR_DARK_GRAY,
radius = 0,
bordersize = Size.line.medium,
}
function LinkBox:init()
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
end
function LinkBox:paintTo(bb)
bb:paintBorder(self.box.x, self.box.y, self.box.w, self.box.h,
self.bordersize, self.color, self.radius)
end
function LinkBox:onCloseWidget()
UIManager:setDirty(nil, function()
return "partial", self.box
end)
end
function LinkBox:onShow()
UIManager:setDirty(self, function()
return "ui", self.box
end)
if self.timeout then
UIManager:scheduleIn(self.timeout, function()
UIManager:close(self)
if self.callback then self.callback() end
end)
end
return true
end
function LinkBox:onTapClose()
UIManager:close(self)
self.callback = nil
return true
end
return LinkBox