mirror of
https://github.com/koreader/koreader
synced 2024-11-10 01:10:34 +00:00
fadee1f5dc
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.
85 lines
2.3 KiB
Lua
85 lines
2.3 KiB
Lua
local ffi = require("ffi")
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local Event = require("ui/event")
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local logger = require("logger")
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local _ = require("ffi/zeromq_h")
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local czmq = ffi.load("libs/libczmq.so.1")
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local MessageQueue = {}
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function MessageQueue:extend(subclass_prototype)
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local o = subclass_prototype or {}
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setmetatable(o, self)
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self.__index = self
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return o
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end
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function MessageQueue:new(o)
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o = self:extend(o)
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if o.init then o:init() end
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self.messages = {}
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return o
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end
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function MessageQueue:init()
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end
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function MessageQueue:start()
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end
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function MessageQueue:stop()
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end
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function MessageQueue:waitEvent()
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end
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function MessageQueue:handleZMsgs(messages)
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local function drop_message()
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if czmq.zmsg_size(messages[1]) == 0 then
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czmq.zmsg_destroy(ffi.new('zmsg_t *[1]', messages[1]))
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table.remove(messages, 1)
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end
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end
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local function pop_string()
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local str_p = czmq.zmsg_popstr(messages[1])
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local res = ffi.string(str_p)
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czmq.zstr_free(ffi.new('char *[1]', str_p))
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drop_message()
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return res
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end
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local function pop_header()
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local header = {}
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local frame = czmq.zmsg_pop(messages[1])
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if frame ~= nil then
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local hash = czmq.zhash_unpack(frame)
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czmq.zframe_destroy(ffi.new('zframe_t *[1]', frame))
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if hash ~= nil then
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local value, key = czmq.zhash_first(hash), czmq.zhash_cursor(hash)
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while value ~= nil and key ~= nil do
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header[ffi.string(key)] = ffi.string(value)
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value, key = czmq.zhash_next(hash), czmq.zhash_cursor(hash)
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end
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czmq.zhash_destroy(ffi.new('zhash_t *[1]', hash))
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end
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end
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drop_message()
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return header
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end
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if #messages == 0 then return end
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local command = pop_string()
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logger.dbg("ØMQ message", command)
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if command == "ENTER" then
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local id = pop_string()
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local name = pop_string()
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local header = pop_header()
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local endpoint = pop_string()
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return Event:new("ZyreEnter", id, name, header, endpoint)
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elseif command == "DELIVER" then
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local filename = pop_string()
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local fullname = pop_string()
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return Event:new("FileDeliver", filename, fullname)
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end
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end
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return MessageQueue
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