vanilla-wow-addons – Blame information for rev 1

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1 office 1  
2 local vmajor, vminor = "Bags 1", tonumber(string.sub("$Revision: 1519 $", 12, -3))
3 local stubvarname = "TekLibStub"
4 local libvarname = "SpecialEventsEmbed"
5  
6  
7 -- Check to see if an update is needed
8 -- if not then just return out now before we do anything
9 local libobj = getglobal(libvarname)
10 if libobj and not libobj:NeedsUpgraded(vmajor, vminor) then return end
11  
12  
13 local stubobj = getglobal(stubvarname)
14 if not stubobj then
15 stubobj = {}
16 setglobal(stubvarname, stubobj)
17  
18  
19 -- Instance replacement method, replace contents of old with that of new
20 function stubobj:ReplaceInstance(old, new)
21 for k,v in pairs(old) do old[k]=nil end
22 for k,v in pairs(new) do old[k]=v end
23 end
24  
25  
26 -- Get a new copy of the stub
27 function stubobj:NewStub(name)
28 local newStub = {}
29 self:ReplaceInstance(newStub, self)
30 newStub.libName = name
31 newStub.lastVersion = ''
32 newStub.versions = {}
33 return newStub
34 end
35  
36  
37 -- Get instance version
38 function stubobj:NeedsUpgraded(vmajor, vminor)
39 local versionData = self.versions[vmajor]
40 if not versionData or versionData.minor < vminor then return true end
41 end
42  
43  
44 -- Get instance version
45 function stubobj:GetInstance(version)
46 if not version then version = self.lastVersion end
47 local versionData = self.versions[version]
48 if not versionData then print(string.format("<%s> Cannot find library version: %s", self.libName, version or "")) return end
49 return versionData.instance
50 end
51  
52  
53 -- Register new instance
54 function stubobj:Register(newInstance)
55 local version,minor = newInstance:GetLibraryVersion()
56 self.lastVersion = version
57 local versionData = self.versions[version]
58 if not versionData then
59 -- This one is new!
60 versionData = {
61 instance = newInstance,
62 minor = minor,
63 old = {},
64 }
65 self.versions[version] = versionData
66 newInstance:LibActivate(self)
67 return newInstance
68 end
69 -- This is an update
70 local oldInstance = versionData.instance
71 local oldList = versionData.old
72 versionData.instance = newInstance
73 versionData.minor = minor
74 local skipCopy = newInstance:LibActivate(self, oldInstance, oldList)
75 table.insert(oldList, oldInstance)
76 if not skipCopy then
77 for i, old in ipairs(oldList) do self:ReplaceInstance(old, newInstance) end
78 end
79 return newInstance
80 end
81 end
82  
83  
84 if not libobj then
85 libobj = stubobj:NewStub(libvarname)
86 setglobal(libvarname, libobj)
87 end
88  
89 local lib = {}
90  
91  
92 -- Return the library's current version
93 function lib:GetLibraryVersion()
94 return vmajor, vminor
95 end
96  
97  
98 function lib:RegisterEvent(caller, eventname, method)
99 if not eventname or not caller then return end
100  
101 if not self.registrar[eventname] then self.registrar[eventname] = {} end
102 self.registrar[eventname][caller] = method or eventname
103 return true
104 end
105  
106  
107 function lib:UnregisterEvent(caller, eventname)
108 if not eventname or not caller or not self.registrar[eventname]
109 or not self.registrar[eventname][caller] then return end
110  
111 self.registrar[eventname][caller] = nil
112 return true
113 end
114  
115  
116 function lib:UnregisterAllEvents(caller)
117 if not caller then return end
118  
119 for _,v in pairs(self.registrar) do v[caller] = nil end
120 return true
121 end
122  
123  
124 function lib:TriggerEvent(eventname, a1,a2,a3,a4)
125 if not eventname or not self.registrar[eventname] then return end
126  
127 for i,v in pairs(self.registrar[eventname]) do
128 if type(v) == "function" then v(i,a1,a2,a3,a4)
129 elseif i[v] then i[v](i,a1,a2,a3,a4) end
130 end
131 end
132  
133  
134 -- Activate a new instance of this library
135 function lib:LibActivate(stub, oldLib, oldList)
136 if oldLib then
137 self.vars, self.registrar = oldLib.vars, oldLib.registrar
138 if oldLib.bags then self.vars.bags = oldLib.bags end
139 self.frame = oldLib.frame
140 else
141 self.registrar, self.vars = {}, {}
142 self.frame = CreateFrame("Frame")
143 self.frame.name = "SEEmbed Bags Frame"
144 self.frame:RegisterEvent("PLAYER_ENTERING_WORLD")
145 self.frame:RegisterEvent("PLAYER_LEAVING_WORLD")
146 self.frame:RegisterEvent("BAG_UPDATE")
147 self:InitBagScan()
148 end
149 self.frame:SetScript("OnEvent", self.OnEvent)
150 end
151  
152  
153 function lib:OnEvent()
154 local self = lib
155 if self[event] then self[event](self) end
156 end
157  
158  
159 function lib:PLAYER_ENTERING_WORLD()
160 self.frame:RegisterEvent("BAG_UPDATE")
161 end
162  
163  
164 function lib:PLAYER_LEAVING_WORLD()
165 self.frame:UnregisterEvent("BAG_UPDATE")
166 end
167  
168  
169 --------------------------------
170 -- Tracking methods --
171 --------------------------------
172  
173 function lib:InitBagScan()
174 self.vars.bags = {}
175  
176 for bag=0,4 do
177 self.vars.bags[bag] = {}
178  
179 for slot=1,GetContainerNumSlots(bag) do
180 local itemlink = GetContainerItemLink(bag, slot)
181 local _, stack = GetContainerItemInfo(bag, slot)
182  
183 self.vars.bags[bag][slot] = {itemlink, stack}
184 end
185 end
186 end
187  
188  
189 function lib:BAG_UPDATE()
190 local bag = arg1
191 if not bag then self:TriggerEvent("SPECIAL_WTF", "No bag!") return end
192 if bag < 0 or bag > 4 then return end
193  
194 for slot=1,self:GetNumSlots(bag) do
195 local itemlink = GetContainerItemLink(bag, slot)
196 local _, stack = GetContainerItemInfo(bag, slot)
197  
198 if not self.vars.bags[bag] then self.vars.bags[bag] = {} end
199 if not self.vars.bags[bag][slot] then self.vars.bags[bag][slot] = {} end
200 local oldlink, oldstack = self.vars.bags[bag][slot][1], self.vars.bags[bag][slot][2]
201  
202 if ((oldlink ~= itemlink) or (oldstack ~= stack)) then
203 self:TriggerEvent("SPECIAL_BAGSLOT_UPDATE", bag, slot, itemlink, stack, oldlink, oldstack)
204 self.vars.bags[bag][slot][1], self.vars.bags[bag][slot][2] = itemlink, stack
205 end
206 end
207 end
208  
209  
210 function lib:GetNumSlots(bag)
211 if not self.vars.bags[bag] then return GetContainerNumSlots(bag) end
212  
213 local n = 0
214 for i in pairs(self.vars.bags[bag]) do n = n + 1 end
215 return math.max(n, GetContainerNumSlots(bag))
216 end
217  
218  
219 --------------------------------
220 -- Load this bitch! --
221 --------------------------------
222 libobj:Register(lib)