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47 lines
1.3 KiB
47 lines
1.3 KiB
8 years ago
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-- see copyright notice in wxLdb.lua
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local wx = require( "wx" )
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local coroutine = coroutine
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local assert = assert
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local debug = debug
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module( "mainthread" )
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local mainObj = nil
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local eventsData = {}
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local id = 194283
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function init( obj )
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assert( coroutine.running() == nil )
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assert( obj ~= nil )
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assert( mainObj == nil )
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mainObj = obj
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mainObj:Connect( wx.wxEVT_NULL, function( event )
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if event:GetId() == id then
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local data = assert( eventsData[event:GetInt()] )
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eventsData[event:GetInt()] = nil
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local ok, msg = coroutine.resume( data.coroutine, data.func() )
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assert( ok, debug.traceback( data.coroutine, msg ) )
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end
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end )
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end
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function execute( f )
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assert( mainObj ~= nil )
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if coroutine.running() == nil then
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return f()
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else
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local e = wx.wxCommandEvent() -- event ID is wxEVT_NULL ; if someone else post this event for another purpose, it will conflict with this system...
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local data = {}
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data.coroutine = coroutine.running()
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data.func = f
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local dataId = #eventsData + 1 -- we don't care if dataId does not increment each time a new event is created ; in any case, we are sure that, by definition of the length operator, eventsData[#eventsData+1] is nil
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eventsData[dataId] = data
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e:SetInt( dataId )
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e:SetId( id )
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wx.wxPostEvent( mainObj, e )
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return coroutine.yield()
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end
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end
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