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1
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2 assert(LibStub, "LibDataBroker-1.1 requires LibStub")
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3 assert(LibStub:GetLibrary("CallbackHandler-1.0", true), "LibDataBroker-1.1 requires CallbackHandler-1.0")
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4
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5 local lib, oldminor = LibStub:NewLibrary("LibDataBroker-1.1", 4)
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6 if not lib then return end
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7 oldminor = oldminor or 0
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8
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9
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10 lib.callbacks = lib.callbacks or LibStub:GetLibrary("CallbackHandler-1.0"):New(lib)
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11 lib.attributestorage, lib.namestorage, lib.proxystorage = lib.attributestorage or {}, lib.namestorage or {}, lib.proxystorage or {}
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12 local attributestorage, namestorage, callbacks = lib.attributestorage, lib.namestorage, lib.callbacks
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13
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14 if oldminor < 2 then
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15 lib.domt = {
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16 __metatable = "access denied",
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17 __index = function(self, key) return attributestorage[self] and attributestorage[self][key] end,
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18 }
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19 end
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20
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21 if oldminor < 3 then
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22 lib.domt.__newindex = function(self, key, value)
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23 if not attributestorage[self] then attributestorage[self] = {} end
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24 if attributestorage[self][key] == value then return end
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25 attributestorage[self][key] = value
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26 local name = namestorage[self]
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27 if not name then return end
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28 callbacks:Fire("LibDataBroker_AttributeChanged", name, key, value, self)
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29 callbacks:Fire("LibDataBroker_AttributeChanged_"..name, name, key, value, self)
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30 callbacks:Fire("LibDataBroker_AttributeChanged_"..name.."_"..key, name, key, value, self)
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31 callbacks:Fire("LibDataBroker_AttributeChanged__"..key, name, key, value, self)
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32 end
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33 end
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34
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35 if oldminor < 2 then
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36 function lib:NewDataObject(name, dataobj)
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37 if self.proxystorage[name] then return end
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38
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39 if dataobj then
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40 assert(type(dataobj) == "table", "Invalid dataobj, must be nil or a table")
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41 self.attributestorage[dataobj] = {}
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42 for i,v in pairs(dataobj) do
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43 self.attributestorage[dataobj][i] = v
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44 dataobj[i] = nil
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45 end
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46 end
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47 dataobj = setmetatable(dataobj or {}, self.domt)
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48 self.proxystorage[name], self.namestorage[dataobj] = dataobj, name
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49 self.callbacks:Fire("LibDataBroker_DataObjectCreated", name, dataobj)
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50 return dataobj
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51 end
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52 end
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53
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54 if oldminor < 1 then
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55 function lib:DataObjectIterator()
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56 return pairs(self.proxystorage)
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57 end
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58
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59 function lib:GetDataObjectByName(dataobjectname)
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60 return self.proxystorage[dataobjectname]
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61 end
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62
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63 function lib:GetNameByDataObject(dataobject)
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64 return self.namestorage[dataobject]
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65 end
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66 end
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67
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68 if oldminor < 4 then
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69 local next = pairs(attributestorage)
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70 function lib:pairs(dataobject_or_name)
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71 local t = type(dataobject_or_name)
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72 assert(t == "string" or t == "table", "Usage: ldb:pairs('dataobjectname') or ldb:pairs(dataobject)")
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73
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74 local dataobj = self.proxystorage[dataobject_or_name] or dataobject_or_name
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75 assert(attributestorage[dataobj], "Data object not found")
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76
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77 return next, attributestorage[dataobj], nil
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78 end
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79
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80 local ipairs_iter = ipairs(attributestorage)
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81 function lib:ipairs(dataobject_or_name)
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82 local t = type(dataobject_or_name)
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83 assert(t == "string" or t == "table", "Usage: ldb:ipairs('dataobjectname') or ldb:ipairs(dataobject)")
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84
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85 local dataobj = self.proxystorage[dataobject_or_name] or dataobject_or_name
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86 assert(attributestorage[dataobj], "Data object not found")
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87
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88 return ipairs_iter, attributestorage[dataobj], 0
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89 end
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90 end
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