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Clarify our OOP semantics across the codebase (#9586)

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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
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4
frontend/ui/widget/notification.lua
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@@ -39,7 +39,7 @@ local SOURCE_SOME = SOURCE_BOTTOM_MENU_FINE + SOURCE_DISPATCHER
local SOURCE_DEFAULT = SOURCE_SOME + SOURCE_BOTTOM_MENU_MORE + SOURCE_BOTTOM_MENU_PROGRESS
local SOURCE_ALL = SOURCE_BOTTOM_MENU + SOURCE_DISPATCHER + SOURCE_OTHER
local Notification = InputContainer:new{
local Notification = InputContainer:extend{
face = Font:getFace("x_smallinfofont"),
text = "Null Message",
margin = Size.margin.default,
@@ -47,7 +47,7 @@ local Notification = InputContainer:new{
timeout = 2, -- default to 2 seconds
toast = true, -- closed on any event, and let the event propagate to next top widget
_nums_shown = {}, -- array of stacked notifications
_nums_shown = {}, -- actual static class member, array of stacked notifications
SOURCE_BOTTOM_MENU_ICON = SOURCE_BOTTOM_MENU_ICON,
SOURCE_BOTTOM_MENU_TOGGLE = SOURCE_BOTTOM_MENU_TOGGLE,