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preventing double preload of the screen (#20)

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* preventing double preload of the screen
This commit is contained in:
Alexey Gulev 2018-06-04 08:48:46 +03:00 committed by Björn Ritzl
parent ffc148b4bf
commit 6fbec4ab8f
1 changed files with 4 additions and 0 deletions
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4
monarch/monarch.lua
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@ -436,6 +436,10 @@ function M.preload(id, cb)
assert(screens[id], ("There is no screen registered with id %s"):format(tostring(id)))
local screen = screens[id]
if screen.preloaded then
if cb then cb() end
return
end
local co
co = coroutine.create(function()
screen.co = co