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.
This commit is contained in:
NiLuJe
2022-10-06 02:14:48 +02:00
committed by GitHub
parent 7b9f02e1ac
commit fadee1f5dc
223 changed files with 849 additions and 985 deletions

View File

@@ -29,7 +29,7 @@ local wacom_scale_x = screen_width / wacom_width
local wacom_scale_y = screen_height / wacom_height
local isRm2, rm_model = getModel()
local Remarkable = Generic:new{
local Remarkable = Generic:extend{
isRemarkable = yes,
model = rm_model,
hasKeys = yes,
@@ -47,7 +47,7 @@ local Remarkable = Generic:new{
home_dir = "/home/root",
}
local Remarkable1 = Remarkable:new{
local Remarkable1 = Remarkable:extend{
mt_width = 767, -- unscaled_size_check: ignore
mt_height = 1023, -- unscaled_size_check: ignore
input_wacom = "/dev/input/event0",
@@ -70,7 +70,7 @@ function Remarkable1:adjustTouchEvent(ev, by)
end
end
local Remarkable2 = Remarkable:new{
local Remarkable2 = Remarkable:extend{
mt_width = 1403, -- unscaled_size_check: ignore
mt_height = 1871, -- unscaled_size_check: ignore
input_wacom = "/dev/input/event1",