Why need to C4:SetTimer before calling firing URL_CHANGED in OnDriverLateInit?

[darxis]

Why there is a need to wait 3 seconds before calling C4:SendToProxy(5001, "URL_CHANGED", ...)?

function OnDriverLateInit()
	...
	C4:SetTimer(3000, function(timer) 
		C4:SendToProxy(5001, "URL_CHANGED", {url = Properties["URL"]})
		setPresetIcon(Properties["Presets"])
		if (g_AutoRename) then setPresetName(Properties["Presets"]) end
	end)
end

If you remove the wait and call C4:SendToProxy(5001, "URL_CHANGED", ...) directly then somehow the URL for the UI button doesn't get set when the director reboots and the button doesn't work at all. Is there a more elegant way to wait until you can call C4:SendToProxy(5001, "URL_CHANGED", ...) instead of waiting 3 seconds?

[darxis]

Hey, is there any specific reason why we need to call C4:SendToProxy(5001, "URL_CHANGED", {url = Properties["URL"]}) within C4:SetTimer in OnDriverLateInit? If you remove C4:SetTimer and call C4:SendToProxy(5001, "URL_CHANGED", {url = Properties["URL"]}) directly then the URL doesn't get set. It seems that we need to wait before calling this but why? The driverworks docs don't mention this strange behavior...

[Leighm0]

Hey, is there any specific reason why we need to call C4:SendToProxy(5001, "URL_CHANGED", {url = Properties["URL"]}) within C4:SetTimer in OnDriverLateInit? If you remove C4:SetTimer and call C4:SendToProxy(5001, "URL_CHANGED", {url = Properties["URL"]}) directly then the URL doesn't get set. It seems that we need to wait before calling this but why? The driverworks docs don't mention this strange behavior...

Honestly I don't know why it's required, but in my initial testing it didn't work without waiting atleast 3 seconds before calling the SendToProxy for URL_CHANGED in the driver inits. If you want to query it further I suggest talking to Snap one Devs asking them why its not possible to work without the delay.

If you find a better method of doing this, please post a pull request with the updated code.

[darxis]

I've observed this strange behavior when developing my custom drivers and in my case waiting 1 second is sufficient. I also need to wait that 1 second before calling SendToProxy not only for URL_CHANGED but also for ICON_CHANGED event.