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adam@0
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1 local _, AskMrRobot = ...
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adam@0
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2
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adam@0
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3 local unresolvedItemIds = {}
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adam@0
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4
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adam@0
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5 -- Create a new class that inherits from a base class
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adam@0
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6 function AskMrRobot.inheritsFrom( baseClass )
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adam@0
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7
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adam@0
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8 -- The following lines are equivalent to the SimpleClass example:
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adam@0
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9
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adam@0
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10 -- Create the table and metatable representing the class.
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yellowfive@11
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11 local new_class = { }
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adam@0
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12
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adam@0
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13 -- Note that this function uses class_mt as an upvalue, so every instance
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adam@0
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14 -- of the class will share the same metatable.
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adam@0
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15 --
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adam@0
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16 -- function new_class:create(o)
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adam@0
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17 -- o = o or {}
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adam@0
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18 -- setmetatable( o, class_mt )
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adam@0
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19 -- return o
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adam@0
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20 -- end
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adam@0
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21
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adam@0
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22 -- The following is the key to implementing inheritance:
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adam@0
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23
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adam@0
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24 -- The __index member of the new class's metatable references the
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adam@0
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25 -- base class. This implies that all methods of the base class will
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adam@0
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26 -- be exposed to the sub-class, and that the sub-class can override
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adam@0
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27 -- any of these methods.
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adam@0
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28 --
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adam@0
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29 if baseClass then
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adam@0
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30 setmetatable( new_class, { __index = baseClass } )
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adam@0
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31 end
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adam@0
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32
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adam@0
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33 return new_class
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adam@0
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34 end
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adam@0
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35
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adam@0
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36 local itemInfoFrame = nil;
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adam@0
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37
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adam@0
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38 local function onGetItemInfoReceived(arg1, arg2, arg3)
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adam@0
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39 -- since wow is awesome, it doesn't tell us *which* item id was just resolved, so we have to look at them all
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adam@0
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40 for itemId, callbacks in pairs(unresolvedItemIds) do
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adam@0
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41 -- attempt to get the item info AGAIN
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adam@0
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42 local a, b, c, d, e, f, g, h, i, j, k = GetItemInfo(itemId)
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adam@0
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43 -- if we got item info...
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adam@0
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44 if a then
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adam@0
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45 -- remove the callbacks from the list
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adam@0
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46 unresolvedItemIds[itemId] = nil
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adam@0
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47
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adam@0
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48 -- call each callback
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adam@0
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49 for i = 1, #callbacks do
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adam@0
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50 callbacks[i](a, b, c, d, e, f, g, h, i, j, k)
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adam@0
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51 end
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adam@0
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52 end
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adam@0
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53 end
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adam@0
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54 end
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adam@0
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55
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adam@0
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56
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adam@0
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57 function AskMrRobot.RegisterItemInfoCallback(itemId, callback)
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adam@0
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58 if not itemId then
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adam@0
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59 return
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adam@0
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60 end
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adam@0
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61
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adam@0
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62 if not itemInfoFrame then
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adam@0
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63 waitFrame = CreateFrame("Frame","WaitFrame", UIParent);
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adam@0
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64 waitFrame:RegisterEvent("GET_ITEM_INFO_RECEIVED")
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adam@0
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65 waitFrame:SetScript("OnEvent", onGetItemInfoReceived);
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adam@0
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66 end
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adam@0
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67
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adam@0
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68
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adam@0
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69 -- get the list of registered callbacks for this particular item
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adam@0
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70 local list = unresolvedItemIds[itemId]
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adam@0
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71 -- if there was a list, then just add the callback to the list
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adam@0
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72 if list then
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adam@0
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73 tinsert(list, callback)
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adam@0
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74 else
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adam@0
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75 -- there wasn't a list, so make a new one with this callback
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adam@0
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76 unresolvedItemIds[itemId] = { callback }
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adam@0
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77 end
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adam@0
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78 end
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adam@0
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79
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adam@0
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80
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adam@0
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81 -- initialize the Frame class (inherit from a dummy frame)
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adam@0
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82 AskMrRobot.Frame = AskMrRobot.inheritsFrom(CreateFrame("Frame"))
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adam@0
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83
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adam@0
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84 -- Frame contructor
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adam@0
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85 function AskMrRobot.Frame:new(name, parentFrame, inheritsFrame)
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adam@0
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86 -- create a new frame (if one isn't supplied)
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adam@0
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87 local o = CreateFrame("Frame", name, parentFrame, inheritsFrame)
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adam@0
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88
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adam@0
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89 -- use the Frame class
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adam@0
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90 setmetatable(o, { __index = AskMrRobot.Frame })
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adam@0
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91
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adam@0
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92 -- return the instance of the Frame
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adam@0
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93 return o
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adam@0
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94 end
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