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