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ChoreTracker/Libs/LibDataBroker-1.1/LibDataBroker-1.1.lua

90 lines
3.2 KiB
Lua

assert(LibStub, "LibDataBroker-1.1 requires LibStub")
assert(LibStub:GetLibrary("CallbackHandler-1.0", true), "LibDataBroker-1.1 requires CallbackHandler-1.0")
local lib, oldminor = LibStub:NewLibrary("LibDataBroker-1.1", 4)
if not lib then return end
oldminor = oldminor or 0
lib.callbacks = lib.callbacks or LibStub:GetLibrary("CallbackHandler-1.0"):New(lib)
lib.attributestorage, lib.namestorage, lib.proxystorage = lib.attributestorage or {}, lib.namestorage or {}, lib.proxystorage or {}
local attributestorage, namestorage, callbacks = lib.attributestorage, lib.namestorage, lib.callbacks
if oldminor < 2 then
lib.domt = {
__metatable = "access denied",
__index = function(self, key) return attributestorage[self] and attributestorage[self][key] end,
}
end
if oldminor < 3 then
lib.domt.__newindex = function(self, key, value)
if not attributestorage[self] then attributestorage[self] = {} end
if attributestorage[self][key] == value then return end
attributestorage[self][key] = value
local name = namestorage[self]
if not name then return end
callbacks:Fire("LibDataBroker_AttributeChanged", name, key, value, self)
callbacks:Fire("LibDataBroker_AttributeChanged_"..name, name, key, value, self)
callbacks:Fire("LibDataBroker_AttributeChanged_"..name.."_"..key, name, key, value, self)
callbacks:Fire("LibDataBroker_AttributeChanged__"..key, name, key, value, self)
end
end
if oldminor < 2 then
function lib:NewDataObject(name, dataobj)
if self.proxystorage[name] then return end
if dataobj then
assert(type(dataobj) == "table", "Invalid dataobj, must be nil or a table")
self.attributestorage[dataobj] = {}
for i,v in pairs(dataobj) do
self.attributestorage[dataobj][i] = v
dataobj[i] = nil
end
end
dataobj = setmetatable(dataobj or {}, self.domt)
self.proxystorage[name], self.namestorage[dataobj] = dataobj, name
self.callbacks:Fire("LibDataBroker_DataObjectCreated", name, dataobj)
return dataobj
end
end
if oldminor < 1 then
function lib:DataObjectIterator()
return pairs(self.proxystorage)
end
function lib:GetDataObjectByName(dataobjectname)
return self.proxystorage[dataobjectname]
end
function lib:GetNameByDataObject(dataobject)
return self.namestorage[dataobject]
end
end
if oldminor < 4 then
local next = pairs(attributestorage)
function lib:pairs(dataobject_or_name)
local t = type(dataobject_or_name)
assert(t == "string" or t == "table", "Usage: ldb:pairs('dataobjectname') or ldb:pairs(dataobject)")
local dataobj = self.proxystorage[dataobject_or_name] or dataobject_or_name
assert(attributestorage[dataobj], "Data object not found")
return next, attributestorage[dataobj], nil
end
local ipairs_iter = ipairs(attributestorage)
function lib:ipairs(dataobject_or_name)
local t = type(dataobject_or_name)
assert(t == "string" or t == "table", "Usage: ldb:ipairs('dataobjectname') or ldb:ipairs(dataobject)")
local dataobj = self.proxystorage[dataobject_or_name] or dataobject_or_name
assert(attributestorage[dataobj], "Data object not found")
return ipairs_iter, attributestorage[dataobj], 0
end
end