Mercurial > wow > dependencyloader

annotate DependencyLoader/Addon.lua @ 16:1d8898cd1c82

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removed the unused code from Core.lua
author mckenziemc
date Sat, 11 Dec 2010 01:54:15 -0800
parents a46bf694050c
children f825ccf94a89
rev   line source
mckenziemc@0 1 -- Addon
mckenziemc@10 2 -- Represents individual addon modules.
mckenziemc@0 3
mckenziemc@0 4
mckenziemc@0 5 local addonName, addonTable = ...
mckenziemc@0 6
mckenziemc@0 7
mckenziemc@10 8 -- TODO: test if the API functions are quicker with indexes than names.
mckenziemc@10 9 -- TODO: modify the dependency stuff to check the Errata module.
mckenziemc@0 10
mckenziemc@0 11 local Addon, addon = addonTable:NewClass("Addon")
mckenziemc@0 12
mckenziemc@8 13 Addon.addons = {}
mckenziemc@8 14 Addon.nameToIndex = {}
mckenziemc@8 15
mckenziemc@8 16
mckenziemc@15 17 --- (private) Creates a new Addon object
mckenziemc@8 18 -- @param id Name or index of the addon.
mckenziemc@0 19 function Addon:New(id)
mckenziemc@0 20 local instance = {}
mckenziemc@0 21 setmetatable(instance, self.instanceMetatable)
mckenziemc@0 22
mckenziemc@0 23 if type(id) == "number" then
mckenziemc@0 24 -- TODO: make sure it's in range
mckenziemc@0 25 instance.index = id
mckenziemc@0 26 instance.name = GetAddOnInfo(id)
mckenziemc@0 27 else
mckenziemc@0 28 -- FIXME: allow blizzard addons?
mckenziemc@0 29 local index
mckenziemc@0 30
mckenziemc@0 31 for i=1,GetNumAddOns() do
mckenziemc@0 32 if GetAddOnInfo(i) == id then
mckenziemc@0 33 index = i
mckenziemc@0 34 break
mckenziemc@0 35 end
mckenziemc@0 36 end
mckenziemc@0 37
mckenziemc@0 38 if index then
mckenziemc@0 39 instance.name = GetAddOnInfo(id)
mckenziemc@0 40 instance.index = index
mckenziemc@0 41 else
mckenziemc@12 42 local message = "Addon not found: "..(id or "nil")
mckenziemc@12 43 error(message)
mckenziemc@0 44 end
mckenziemc@0 45 end
mckenziemc@0 46
mckenziemc@0 47 return instance
mckenziemc@0 48 end
mckenziemc@0 49
mckenziemc@0 50
mckenziemc@8 51 --- Retrieves an Addon object.
mckenziemc@8 52 -- @param id Name or index of the addon to retrieve.
mckenziemc@8 53 -- @return The Addon object, or nil if not found.
mckenziemc@8 54 function Addon:Get(id)
mckenziemc@15 55 assert(id)
mckenziemc@15 56
mckenziemc@8 57 if not self:Exists(id) then
mckenziemc@8 58 return nil
mckenziemc@8 59 end
mckenziemc@8 60
mckenziemc@8 61 if type(id) == "number" then
mckenziemc@8 62 if self.addons[id] ~= nil then
mckenziemc@8 63 return self.addons[id]
mckenziemc@8 64 end
mckenziemc@8 65
mckenziemc@8 66 local new = self:New(id)
mckenziemc@8 67 self.addons[new:GetIndex()] = new
mckenziemc@8 68 self.nameToIndex[new:GetName()] = id
mckenziemc@8 69
mckenziemc@8 70 return new
mckenziemc@8 71 elseif type(id) == "string" then
mckenziemc@8 72 if self.nameToIndex[id] then
mckenziemc@8 73 return self.addons[self.nameToIndex[id] ]
mckenziemc@8 74 end
mckenziemc@8 75
mckenziemc@8 76 local new = self:New(id)
mckenziemc@8 77 self.addons[new:GetIndex()] = new
mckenziemc@8 78 self.nameToIndex[id] = new:GetIndex()
mckenziemc@8 79
mckenziemc@8 80 return new
mckenziemc@8 81 end
mckenziemc@8 82 end
mckenziemc@8 83
mckenziemc@10 84
mckenziemc@0 85 -- Checks if an addon exists with the specified name.
mckenziemc@0 86 -- @param addon Name of the addon.
mckenziemc@0 87 -- @return True if the addon is present, false otherwise.
mckenziemc@0 88 function Addon:Exists(addon)
mckenziemc@0 89 if type(addon) == "number" then
mckenziemc@0 90 if addon >= 1 and addon <= GetNumAddOns() then
mckenziemc@0 91 return true
mckenziemc@0 92 else
mckenziemc@0 93 return false
mckenziemc@0 94 end
mckenziemc@0 95 elseif type(addon) == "string" then
mckenziemc@15 96 if addon:match("Blizzard_") then
mckenziemc@15 97 return false
mckenziemc@15 98 end
mckenziemc@15 99
mckenziemc@0 100 local status = select(6, GetAddOnInfo(addon))
mckenziemc@0 101
mckenziemc@0 102 if status == "MISSING" then
mckenziemc@0 103 return false
mckenziemc@0 104 else
mckenziemc@0 105 return true
mckenziemc@0 106 end
mckenziemc@0 107 else
mckenziemc@15 108 local message = string.format("Unexpected argument type: \"%s\", value: %s", type(addon), addon or "nil")
mckenziemc@15 109 error(message)
mckenziemc@0 110 end
mckenziemc@0 111 end
mckenziemc@0 112
mckenziemc@0 113
mckenziemc@0 114 function addon:GetName()
mckenziemc@0 115 return self.name
mckenziemc@0 116 end
mckenziemc@0 117
mckenziemc@0 118
mckenziemc@0 119 function addon:GetIndex()
mckenziemc@0 120 return self.index
mckenziemc@0 121 end
mckenziemc@0 122
mckenziemc@0 123
mckenziemc@0 124 function addon:IsEnabled()
mckenziemc@0 125 -- FIXME: written while tired; review later
mckenziemc@0 126 local status = select(6, GetAddOnInfo(self.index))
mckenziemc@0 127
mckenziemc@0 128 if status == "DISABLED" then
mckenziemc@0 129 return false
mckenziemc@0 130 else
mckenziemc@0 131 return true
mckenziemc@0 132 end
mckenziemc@0 133 end
mckenziemc@0 134
mckenziemc@0 135
mckenziemc@15 136 function addon:IsLoaded()
mckenziemc@15 137 if IsAddOnLoaded(self.index) then
mckenziemc@15 138 return true
mckenziemc@15 139 else
mckenziemc@15 140 return false
mckenziemc@15 141 end
mckenziemc@15 142 end
mckenziemc@15 143
mckenziemc@15 144
mckenziemc@8 145 --- Checks if the addon is loadable.
mckenziemc@8 146 -- Considers interface issues, missing, etc. (NYI)
mckenziemc@8 147 -- Does not check dependencies.
mckenziemc@8 148 function addon:CanLoad()
mckenziemc@8 149 -- FIXME: an addon may be present but unloadable if loading out of date addons is disabled.
mckenziemc@8 150 return true
mckenziemc@8 151 end
mckenziemc@8 152
mckenziemc@8 153
mckenziemc@0 154 function addon:CanLoD()
mckenziemc@0 155 -- FIXME: what will the client say about addons using LoadManagers if the LM was force-loaded?
mckenziemc@0 156 if IsAddOnLoadOnDemand(self.name) then
mckenziemc@0 157 return true
mckenziemc@0 158 else
mckenziemc@0 159 return false
mckenziemc@0 160 end
mckenziemc@0 161 end
mckenziemc@0 162
mckenziemc@8 163
mckenziemc@15 164 -- can this addon be force-loaded after the point where the client would enable it?
mckenziemc@8 165 function addon:CanForceLoadAfter()
mckenziemc@8 166 -- TODO: check Errata module
mckenziemc@8 167 return false
mckenziemc@8 168 end
mckenziemc@8 169
mckenziemc@8 170
mckenziemc@15 171 -- can this addon be force-loaded before the point where the client would enable it?
mckenziemc@8 172 function addon:CanForceLoadBefore()
mckenziemc@8 173 -- TODO: check Errata module
mckenziemc@8 174 return false -- TODO: check if there's any reason addons can't be forceloaded
mckenziemc@8 175 end
mckenziemc@8 176
mckenziemc@8 177
mckenziemc@10 178 function addon:CanForceLoad()
mckenziemc@10 179 -- FIXME: check if this would've already been loaded
mckenziemc@15 180 return self:CanForceLoadAfter() or self:CanLoD()
mckenziemc@15 181 -- FIXME: should CanLoD() be in here?
mckenziemc@10 182 end
mckenziemc@10 183
mckenziemc@10 184
mckenziemc@8 185 function addon:Enable()
mckenziemc@15 186 if IsLoggedIn() then
mckenziemc@15 187 addonTable.interface:QueueEnable(self.name)
mckenziemc@15 188 else
mckenziemc@15 189 addonTable.interface:RawEnableAddOn(self.name)
mckenziemc@15 190 end
mckenziemc@8 191 end
mckenziemc@8 192
mckenziemc@8 193
mckenziemc@0 194 -- NOTE: only call for LoD, not force-loading
mckenziemc@0 195 function addon:Load()
mckenziemc@0 196 assert(self:CanLoD())
mckenziemc@0 197
mckenziemc@15 198 addonTable.interface:RawEnableAddOn(self.name)
mckenziemc@15 199 addonTable.interface:RawLoadAddOn(self.name)
mckenziemc@0 200 end
mckenziemc@0 201
mckenziemc@8 202
mckenziemc@0 203 function addon:ForceLoad()
mckenziemc@0 204 assert(self:CanForceLoad())
mckenziemc@0 205 -- TODO: make sure force-loading is available at this time
mckenziemc@0 206
mckenziemc@15 207 addonTable.interface:RawEnableAddOn(self.name) -- This should cause the game to also load this addon
mckenziemc@0 208 end
mckenziemc@0 209
mckenziemc@0 210
mckenziemc@0 211 function addon:GetDependencies()
mckenziemc@8 212 -- TODO: consider no-lib embeds as deps?
mckenziemc@0 213 return GetAddOnDependencies(self.index)
mckenziemc@0 214 end
mckenziemc@0 215
mckenziemc@0 216
mckenziemc@0 217 function addon:GetEmbeds()
mckenziemc@0 218 local embeds = {}
mckenziemc@0 219
mckenziemc@0 220 local embedString = GetAddOnMetadata(self.name, "X-Embeds")
mckenziemc@0 221
mckenziemc@0 222 if embedString then
mckenziemc@0 223 for match in string.gmatch(embedString, "[^,%s]+") do
mckenziemc@0 224 table.insert(embeds, match)
mckenziemc@0 225 end
mckenziemc@0 226 end
mckenziemc@0 227
mckenziemc@0 228 return unpack(embeds)
mckenziemc@0 229 end