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flickerstreak@28
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1 --[[ $Id: AceAddon-3.0.lua 63220 2008-02-29 11:29:58Z nevcairiel $ ]]
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2 local MAJOR, MINOR = "AceAddon-3.0", 3
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3 local AceAddon, oldminor = LibStub:NewLibrary(MAJOR, MINOR)
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4
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5 if not AceAddon then return end -- No Upgrade needed.
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6
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7 AceAddon.frame = AceAddon.frame or CreateFrame("Frame", "AceAddon30Frame") -- Our very own frame
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8 AceAddon.addons = AceAddon.addons or {} -- addons in general
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9 AceAddon.statuses = AceAddon.statuses or {} -- statuses of addon.
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10 AceAddon.initializequeue = AceAddon.initializequeue or {} -- addons that are new and not initialized
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11 AceAddon.enablequeue = AceAddon.enablequeue or {} -- addons that are initialized and waiting to be enabled
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12 AceAddon.embeds = AceAddon.embeds or setmetatable({}, {__index = function(tbl, key) tbl[key] = {} return tbl[key] end }) -- contains a list of libraries embedded in an addon
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13
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14 local tinsert, tconcat = table.insert, table.concat
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15 local fmt = string.format
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16 local pairs, next, type = pairs, next, type
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17
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18 --[[
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19 xpcall safecall implementation
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20 ]]
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21 local xpcall = xpcall
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22
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23 local function errorhandler(err)
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24 return geterrorhandler()(err)
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25 end
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26
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27 local function CreateDispatcher(argCount)
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28 local code = [[
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29 local xpcall, eh = ...
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30 local method, ARGS
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31 local function call() return method(ARGS) end
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32
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33 local function dispatch(func, ...)
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34 method = func
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35 if not method then return end
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36 ARGS = ...
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37 return xpcall(call, eh)
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38 end
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39
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40 return dispatch
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41 ]]
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42
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43 local ARGS = {}
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44 for i = 1, argCount do ARGS[i] = "arg"..i end
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45 code = code:gsub("ARGS", tconcat(ARGS, ", "))
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46 return assert(loadstring(code, "safecall Dispatcher["..argCount.."]"))(xpcall, errorhandler)
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47 end
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48
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49 local Dispatchers = setmetatable({}, {__index=function(self, argCount)
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50 local dispatcher = CreateDispatcher(argCount)
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51 rawset(self, argCount, dispatcher)
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52 return dispatcher
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53 end})
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54 Dispatchers[0] = function(func)
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55 return xpcall(func, errorhandler)
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56 end
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57
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58 local function safecall(func, ...)
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59 -- we check to see if the func is passed is actually a function here and don't error when it isn't
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60 -- this safecall is used for optional functions like OnInitialize OnEnable etc. When they are not
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61 -- present execution should continue without hinderance
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62 if type(func) == "function" then
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63 return Dispatchers[select('#', ...)](func, ...)
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64 end
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65 end
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66
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67 -- local functions that will be implemented further down
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68 local Enable, Disable, EnableModule, DisableModule, Embed, NewModule, GetModule, GetName, SetDefaultModuleState, SetDefaultModuleLibraries, SetEnabledState, SetDefaultModulePrototype
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69
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70 -- used in the addon metatable
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71 local function addontostring( self ) return self.name end
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72
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73 -- AceAddon:NewAddon( name, [lib, lib, lib, ...] )
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flickerstreak@28
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74 -- name (string) - unique addon object name
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75 -- [lib] (string) - optional libs to embed in the addon object
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76 --
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77 -- returns the addon object when succesful
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78 function AceAddon:NewAddon(name, ...)
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79 if type(name) ~= "string" then error(("Usage: NewAddon(name, [lib, lib, lib, ...]): 'name' - string expected got '%s'."):format(type(name)), 2) end
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80
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81 if self.addons[name] then error(("Usage: NewAddon(name, [lib, lib, lib, ...]): 'name' - Addon '%s' already exists."):format(name), 2) end
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82
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83 local addon = setmetatable( {name = name}, { __tostring = addontostring } )
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84 self.addons[name] = addon
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85 addon.modules = {}
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86 addon.defaultModuleLibraries = {}
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87 Embed( addon ) -- embed NewModule, GetModule methods
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88 self:EmbedLibraries(addon, ...)
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89
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90 -- add to queue of addons to be initialized upon ADDON_LOADED
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91 tinsert(self.initializequeue, addon)
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92 return addon
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93 end
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94
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flickerstreak@28
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95 -- AceAddon:GetAddon( name, [silent])
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96 -- name (string) - unique addon object name
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97 -- silent (boolean) - if true, addon is optional, silently return nil if its not found
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flickerstreak@28
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98 --
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99 -- throws an error if the addon object can not be found (except silent is set)
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100 -- returns the addon object if found
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flickerstreak@28
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101 function AceAddon:GetAddon(name, silent)
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102 if not silent and not self.addons[name] then
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103 error(("Usage: GetAddon(name): 'name' - Cannot find an AceAddon '%s'."):format(tostring(name)), 2)
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104 end
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105 return self.addons[name]
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106 end
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107
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flickerstreak@28
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108 -- AceAddon:EmbedLibraries( addon, [lib, lib, lib, ...] )
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flickerstreak@28
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109 -- addon (object) - addon to embed the libs in
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110 -- [lib] (string) - optional libs to embed
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flickerstreak@28
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111 function AceAddon:EmbedLibraries(addon, ...)
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112 for i=1,select("#", ... ) do
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113 local libname = select(i, ...)
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114 self:EmbedLibrary(addon, libname, false, 4)
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115 end
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116 end
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117
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flickerstreak@28
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118 -- AceAddon:EmbedLibrary( addon, libname, silent, offset )
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flickerstreak@28
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119 -- addon (object) - addon to embed the libs in
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120 -- libname (string) - lib to embed
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121 -- [silent] (boolean) - optional, marks an embed to fail silently if the library doesn't exist.
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122 -- [offset] (number) - will push the error messages back to said offset defaults to 2
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123 function AceAddon:EmbedLibrary(addon, libname, silent, offset)
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124 local lib = LibStub:GetLibrary(libname, true)
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125 if not lib and not silent then
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126 error(("Usage: EmbedLibrary(addon, libname, silent, offset): 'libname' - Cannot find a library instance of %q."):format(tostring(libname)), offset or 2)
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127 elseif lib and type(lib.Embed) == "function" then
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128 lib:Embed(addon)
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129 tinsert(self.embeds[addon], libname)
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130 return true
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131 elseif lib then
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132 error(("Usage: EmbedLibrary(addon, libname, silent, offset): 'libname' - Library '%s' is not Embed capable"):format(libname), offset or 2)
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133 end
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134 end
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135
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136 -- addon:GetModule( name, [silent])
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137 -- name (string) - unique module object name
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138 -- silent (boolean) - if true, module is optional, silently return nil if its not found
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flickerstreak@28
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139 --
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140 -- throws an error if the addon object can not be found (except silent is set)
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141 -- returns the module object if found
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142 function GetModule(self, name, silent)
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143 if not self.modules[name] and not silent then
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144 error(("Usage: GetModule(name, silent): 'name' - Cannot find module '%s'."):format(tostring(name)), 2)
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145 end
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146 return self.modules[name]
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147 end
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148
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149 local function IsModuleTrue(self) return true end
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150
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151 -- addon:NewModule( name, [prototype, [lib, lib, lib, ...] )
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flickerstreak@28
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152 -- name (string) - unique module object name for this addon
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153 -- prototype (object) - object to derive this module from, methods and values from this table will be mixed into the module, if a string is passed a lib is assumed
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154 -- [lib] (string) - optional libs to embed in the addon object
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155 --
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156 -- returns the addon object when succesful
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flickerstreak@28
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157 function NewModule(self, name, prototype, ...)
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158 if type(name) ~= "string" then error(("Usage: NewModule(name, [prototype, [lib, lib, lib, ...]): 'name' - string expected got '%s'."):format(type(name)), 2) end
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159 if type(prototype) ~= "string" and type(prototype) ~= "table" and type(prototype) ~= "nil" then error(("Usage: NewModule(name, [prototype, [lib, lib, lib, ...]): 'prototype' - table (prototype), string (lib) or nil expected got '%s'."):format(type(prototype)), 2) end
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160
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flickerstreak@28
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161 if self.modules[name] then error(("Usage: NewModule(name, [prototype, [lib, lib, lib, ...]): 'name' - Module '%s' already exists."):format(name), 2) end
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162
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flickerstreak@28
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163 -- modules are basically addons. We treat them as such. They will be added to the initializequeue properly as well.
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164 -- NewModule can only be called after the parent addon is present thus the modules will be initialized after their parent is.
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flickerstreak@28
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165 local module = AceAddon:NewAddon(fmt("%s_%s", self.name or tostring(self), name))
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166
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167 module.IsModule = IsModuleTrue
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168 module:SetEnabledState(self.defaultModuleState)
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169 module.moduleName = name
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170
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171 if type(prototype) == "string" then
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172 AceAddon:EmbedLibraries(module, prototype, ...)
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173 else
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174 AceAddon:EmbedLibraries(module, ...)
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175 end
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176 AceAddon:EmbedLibraries(module, unpack(self.defaultModuleLibraries))
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177
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flickerstreak@28
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178 if not prototype or type(prototype) == "string" then
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179 prototype = self.defaultModulePrototype or nil
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180 end
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181
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182 if type(prototype) == "table" then
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183 local mt = getmetatable(module)
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184 mt.__index = prototype
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185 setmetatable(module, mt) -- More of a Base class type feel.
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186 end
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187
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188 safecall(self.OnModuleCreated, self, module) -- Was in Ace2 and I think it could be a cool thing to have handy.
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189 self.modules[name] = module
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190
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191 return module
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192 end
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193
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flickerstreak@28
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194 --addon:GetName()
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195 -- Returns the real name of the addon or module, without any prefix
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196 function GetName(self)
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197 return self.moduleName or self.name
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198 end
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199
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flickerstreak@28
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200 --addon:Enable()
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201 -- Enables the Addon if possible, return true or false depending on success
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202 function Enable(self)
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203 self:SetEnabledState(true)
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204 return AceAddon:EnableAddon(self)
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205 end
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206
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flickerstreak@28
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207 --addon:Disable()
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208 -- Disables the Addon if possible, return true or false depending on success
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209 function Disable(self)
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210 self:SetEnabledState(false)
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211 return AceAddon:DisableAddon(self)
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212 end
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213
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214 -- addon:EnableModule( name )
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215 -- name (string) - unique module object name
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flickerstreak@28
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216 --
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217 -- Enables the Module if possible, return true or false depending on success
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218 function EnableModule(self, name)
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219 local module = self:GetModule( name )
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220 return module:Enable()
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221 end
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222
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flickerstreak@28
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223 -- addon:DisableModule( name )
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224 -- name (string) - unique module object name
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flickerstreak@28
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225 --
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226 -- Disables the Module if possible, return true or false depending on success
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227 function DisableModule(self, name)
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228 local module = self:GetModule( name )
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229 return module:Disable()
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230 end
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231
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flickerstreak@28
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232 -- addon:SetDefaultModuleLibraries( [lib, lib, lib, ...] )
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flickerstreak@28
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233 -- [lib] (string) - libs to embed in every module
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flickerstreak@28
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234 function SetDefaultModuleLibraries(self, ...)
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235 if next(self.modules) then
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236 error("Usage: SetDefaultModuleLibraries(...): cannot change the module defaults after a module has been registered.", 2)
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237 end
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flickerstreak@28
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238 self.defaultModuleLibraries = {...}
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239 end
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240
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flickerstreak@28
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241 -- addon:SetDefaultModuleState( state )
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flickerstreak@28
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242 -- state (boolean) - default state for new modules (enabled=true, disabled=false)
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243 function SetDefaultModuleState(self, state)
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244 if next(self.modules) then
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flickerstreak@28
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245 error("Usage: SetDefaultModuleState(state): cannot change the module defaults after a module has been registered.", 2)
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246 end
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247 self.defaultModuleState = state
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248 end
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249
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flickerstreak@28
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250 -- addon:SetDefaultModulePrototype( prototype )
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flickerstreak@28
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251 -- prototype (string or table) - the default prototype to use if none is specified on module creation
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252 function SetDefaultModulePrototype(self, prototype)
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253 if next(self.modules) then
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flickerstreak@28
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254 error("Usage: SetDefaultModulePrototype(prototype): cannot change the module defaults after a module has been registered.", 2)
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255 end
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flickerstreak@28
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256 if type(prototype) ~= "table" then
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flickerstreak@28
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257 error(("Usage: SetDefaultModulePrototype(prototype): 'prototype' - table expected got '%s'."):format(type(prototype)), 2)
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flickerstreak@28
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258 end
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flickerstreak@28
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259 self.defaultModulePrototype = prototype
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260 end
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flickerstreak@28
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261
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flickerstreak@28
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262 -- addon:SetEnabledState ( state )
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flickerstreak@28
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263 -- state ( boolean ) - set the state of an addon or module (enabled=true, disabled=false)
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flickerstreak@28
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264 --
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flickerstreak@28
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265 -- should only be called before any Enabling actually happend, aka in OnInitialize
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flickerstreak@28
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266 function SetEnabledState(self, state)
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flickerstreak@28
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267 self.enabledState = state
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flickerstreak@28
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268 end
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flickerstreak@28
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269
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flickerstreak@28
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270
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flickerstreak@28
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271 local function IterateModules(self) return pairs(self.modules) end
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flickerstreak@28
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272 local function IterateEmbeds(self) return pairs(AceAddon.embeds[self]) end
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flickerstreak@28
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273 local function IsEnabled(self) return self.enabledState end
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flickerstreak@28
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274 local mixins = {
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275 NewModule = NewModule,
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flickerstreak@28
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276 GetModule = GetModule,
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flickerstreak@28
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277 Enable = Enable,
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flickerstreak@28
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278 Disable = Disable,
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flickerstreak@28
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279 EnableModule = EnableModule,
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flickerstreak@28
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280 DisableModule = DisableModule,
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flickerstreak@28
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281 IsEnabled = IsEnabled,
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flickerstreak@28
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282 SetDefaultModuleLibraries = SetDefaultModuleLibraries,
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flickerstreak@28
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283 SetDefaultModuleState = SetDefaultModuleState,
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flickerstreak@28
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284 SetDefaultModulePrototype = SetDefaultModulePrototype,
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flickerstreak@28
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285 SetEnabledState = SetEnabledState,
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flickerstreak@28
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286 IterateModules = IterateModules,
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flickerstreak@28
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287 IterateEmbeds = IterateEmbeds,
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flickerstreak@28
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288 GetName = GetName,
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flickerstreak@28
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289 }
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flickerstreak@28
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290 local function IsModule(self) return false end
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flickerstreak@28
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291 local pmixins = {
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flickerstreak@28
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292 defaultModuleState = true,
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flickerstreak@28
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293 enabledState = true,
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flickerstreak@28
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294 IsModule = IsModule,
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flickerstreak@28
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295 }
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flickerstreak@28
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296 -- Embed( target )
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flickerstreak@28
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297 -- target (object) - target object to embed aceaddon in
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flickerstreak@28
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298 --
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flickerstreak@28
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299 -- this is a local function specifically since it's meant to be only called internally
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flickerstreak@28
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300 function Embed(target)
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flickerstreak@28
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301 for k, v in pairs(mixins) do
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flickerstreak@28
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302 target[k] = v
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flickerstreak@28
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303 end
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flickerstreak@28
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304 for k, v in pairs(pmixins) do
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flickerstreak@28
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305 target[k] = target[k] or v
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flickerstreak@28
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306 end
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flickerstreak@28
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307 end
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flickerstreak@28
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308
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flickerstreak@28
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309
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flickerstreak@28
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310 -- AceAddon:IntializeAddon( addon )
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flickerstreak@28
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311 -- addon (object) - addon to intialize
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flickerstreak@28
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312 --
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flickerstreak@28
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313 -- calls OnInitialize on the addon object if available
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flickerstreak@28
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314 -- calls OnEmbedInitialize on embedded libs in the addon object if available
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flickerstreak@28
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315 function AceAddon:InitializeAddon(addon)
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flickerstreak@28
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316 safecall(addon.OnInitialize, addon)
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flickerstreak@28
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317
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flickerstreak@28
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318 local embeds = self.embeds[addon]
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flickerstreak@28
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319 for i = 1, #embeds do
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flickerstreak@28
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320 local lib = LibStub:GetLibrary(embeds[i], true)
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flickerstreak@28
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321 if lib then safecall(lib.OnEmbedInitialize, lib, addon) end
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flickerstreak@28
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322 end
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flickerstreak@28
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323
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flickerstreak@28
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324 -- we don't call InitializeAddon on modules specifically, this is handled
|
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flickerstreak@28
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325 -- from the event handler and only done _once_
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flickerstreak@28
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326 end
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flickerstreak@28
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327
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flickerstreak@28
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328 -- AceAddon:EnableAddon( addon )
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flickerstreak@28
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329 -- addon (object) - addon to enable
|
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flickerstreak@28
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330 --
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flickerstreak@28
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331 -- calls OnEnable on the addon object if available
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flickerstreak@28
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332 -- calls OnEmbedEnable on embedded libs in the addon object if available
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flickerstreak@28
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333 function AceAddon:EnableAddon(addon)
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flickerstreak@28
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334 if type(addon) == "string" then addon = AceAddon:GetAddon(addon) end
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flickerstreak@28
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335 if self.statuses[addon.name] or not addon.enabledState then return false end
|
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flickerstreak@28
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336 -- TODO: handle 'first'? Or let addons do it on their own?
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flickerstreak@28
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337 safecall(addon.OnEnable, addon)
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flickerstreak@28
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338 local embeds = self.embeds[addon]
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flickerstreak@28
|
339 for i = 1, #embeds do
|
|
flickerstreak@28
|
340 local lib = LibStub:GetLibrary(embeds[i], true)
|
|
flickerstreak@28
|
341 if lib then safecall(lib.OnEmbedEnable, lib, addon) end
|
|
flickerstreak@28
|
342 end
|
|
flickerstreak@28
|
343 self.statuses[addon.name] = addon.enabledState
|
|
flickerstreak@28
|
344
|
|
flickerstreak@28
|
345 -- enable possible modules.
|
|
flickerstreak@28
|
346 for name, module in pairs(addon.modules) do
|
|
flickerstreak@28
|
347 self:EnableAddon(module)
|
|
flickerstreak@28
|
348 end
|
|
flickerstreak@28
|
349
|
|
flickerstreak@28
|
350 return true
|
|
flickerstreak@28
|
351 end
|
|
flickerstreak@28
|
352
|
|
flickerstreak@28
|
353 -- AceAddon:DisableAddon( addon )
|
|
flickerstreak@28
|
354 -- addon (object|string) - addon to disable
|
|
flickerstreak@28
|
355 --
|
|
flickerstreak@28
|
356 -- calls OnDisable on the addon object if available
|
|
flickerstreak@28
|
357 -- calls OnEmbedDisable on embedded libs in the addon object if available
|
|
flickerstreak@28
|
358 function AceAddon:DisableAddon(addon)
|
|
flickerstreak@28
|
359 if type(addon) == "string" then addon = AceAddon:GetAddon(addon) end
|
|
flickerstreak@28
|
360 if not self.statuses[addon.name] then return false end
|
|
flickerstreak@28
|
361 safecall( addon.OnDisable, addon )
|
|
flickerstreak@28
|
362 local embeds = self.embeds[addon]
|
|
flickerstreak@28
|
363 for i = 1, #embeds do
|
|
flickerstreak@28
|
364 local lib = LibStub:GetLibrary(embeds[i], true)
|
|
flickerstreak@28
|
365 if lib then safecall(lib.OnEmbedDisable, lib, addon) end
|
|
flickerstreak@28
|
366 end
|
|
flickerstreak@28
|
367 self.statuses[addon.name] = addon.enabledState
|
|
flickerstreak@28
|
368
|
|
flickerstreak@28
|
369 -- disable possible modules.
|
|
flickerstreak@28
|
370 for name, module in pairs(addon.modules) do
|
|
flickerstreak@28
|
371 self:DisableAddon(module)
|
|
flickerstreak@28
|
372 end
|
|
flickerstreak@28
|
373
|
|
flickerstreak@28
|
374 return true
|
|
flickerstreak@28
|
375 end
|
|
flickerstreak@28
|
376
|
|
flickerstreak@28
|
377 --The next few funcs are just because no one should be reaching into the internal registries
|
|
flickerstreak@28
|
378 --Thoughts?
|
|
flickerstreak@28
|
379 function AceAddon:IterateAddons() return pairs(self.addons) end
|
|
flickerstreak@28
|
380 function AceAddon:IterateEmbedsOnAddon(addon) return pairs(self.embeds[addon]) end
|
|
flickerstreak@28
|
381 function AceAddon:IterateAddonStatus() return pairs(self.statuses) end
|
|
flickerstreak@28
|
382 function AceAddon:IterateModulesOfAddon(addon) return pairs(addon.modules) end
|
|
flickerstreak@28
|
383
|
|
flickerstreak@28
|
384 -- Event Handling
|
|
flickerstreak@28
|
385 local function onEvent(this, event, arg1)
|
|
flickerstreak@28
|
386 if event == "ADDON_LOADED" or event == "PLAYER_LOGIN" then
|
|
flickerstreak@28
|
387 -- if a addon loads another addon, recursion could happen here, so we need to validate the table on every iteration
|
|
flickerstreak@28
|
388 while(#AceAddon.initializequeue > 0) do
|
|
flickerstreak@28
|
389 local addon = tremove(AceAddon.initializequeue, 1)
|
|
flickerstreak@28
|
390 -- this might be an issue with recursion - TODO: validate
|
|
flickerstreak@28
|
391 if event == "ADDON_LOADED" then addon.baseName = arg1 end
|
|
flickerstreak@28
|
392 AceAddon:InitializeAddon(addon)
|
|
flickerstreak@28
|
393 tinsert(AceAddon.enablequeue, addon)
|
|
flickerstreak@28
|
394 end
|
|
flickerstreak@28
|
395
|
|
flickerstreak@28
|
396 if IsLoggedIn() then
|
|
flickerstreak@28
|
397 while(#AceAddon.enablequeue > 0) do
|
|
flickerstreak@28
|
398 local addon = tremove(AceAddon.enablequeue, 1)
|
|
flickerstreak@28
|
399 AceAddon:EnableAddon(addon)
|
|
flickerstreak@28
|
400 end
|
|
flickerstreak@28
|
401 end
|
|
flickerstreak@28
|
402 end
|
|
flickerstreak@28
|
403 end
|
|
flickerstreak@28
|
404
|
|
flickerstreak@28
|
405 AceAddon.frame:RegisterEvent("ADDON_LOADED")
|
|
flickerstreak@28
|
406 AceAddon.frame:RegisterEvent("PLAYER_LOGIN")
|
|
flickerstreak@28
|
407 AceAddon.frame:SetScript("OnEvent", onEvent)
|
|
flickerstreak@28
|
408
|
|
flickerstreak@28
|
409 -- upgrade embeded
|
|
flickerstreak@28
|
410 for name, addon in pairs(AceAddon.addons) do
|
|
flickerstreak@28
|
411 Embed(addon)
|
|
flickerstreak@28
|
412 end
|
