vanilla-wow-addons – Rev 1
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---------------------------------------------------------------------------
-- Embedded Library Registration Stub
--
-- Written by Iriel <iriel@vigilance-committee.org>
--
-- Version 0.1 - 2006-03-05
---------------------------------------------------------------------------
-- To use this for your own AddOns, copy this file and then edit only the
-- section at the bottom with the appropriate library name(s).
---------------------------------------------------------------------------
local stub = {};
-- Instance replacement method, replace contents of old with that of new
function stub:ReplaceInstance(old, new)
for k,v in pairs(old) do old[k]=nil; end
for k,v in pairs(new) do old[k]=v; end
end
-- Get a new copy of the stub
function stub:NewStub()
local newStub = {};
self:ReplaceInstance(newStub, self);
newStub.lastVersion = '';
newStub.versions = {};
return newStub;
end
-- Get instance version
function stub:GetInstance(version)
if (not version) then version = self.lastVersion; end
local versionData = self.versions[version];
if (not versionData) then
message("Cannot find library instance with version '"
.. version .. "'");
return;
end
return versionData.instance;
end
-- Register new instance
function stub:Register(newInstance)
local version,minor = newInstance:GetLibraryVersion();
self.lastVersion = version;
local versionData = self.versions[version];
if (not versionData) then
-- This one is new!
versionData = { instance = newInstance,
minor = minor,
old = {}
};
self.versions[version] = versionData;
newInstance:LibActivate(self);
return newInstance;
end
if (minor <= versionData.minor) then
-- This one is already obsolete
if (newInstance.LibDiscard) then
newInstance:LibDiscard();
end
return versionData.instance;
end
-- This is an update
local oldInstance = versionData.instance;
local oldList = versionData.old;
versionData.instance = newInstance;
versionData.minor = minor;
local skipCopy = newInstance:LibActivate(self, oldInstance, oldList);
table.insert(oldList, oldInstance);
if (not skipCopy) then
for i, old in ipairs(oldList) do
self:ReplaceInstance(old, newInstance);
end
end
return newInstance;
end
----------------------------------------------------------------------------
-- PUT LIBRARY INSTANCES HERE
--
-- if (not LibName) then LibName = stub:NewStub(); end
-- Follow all with stub = nil
-- Set up IrielVirtualFrames (IrielPrototype-2-dev/617)
if (not IrielVirtualFrames) then IrielVirtualFrames = stub:NewStub(); end
-- Release stub to gc
stub = nil;