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support optional setlistener() arg to fire callback function initially;

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copy arg checking from interpolate()
This commit is contained in:
mfranz 2006-01-30 12:37:34 +00:00
parent dbc4f2bcb4
commit 714504b548
1 changed files with 5 additions and 2 deletions
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7
Nasal/globals.nas
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@ -66,10 +66,13 @@ interpolate = func {
## ##
# Convenience wrapper for the _setlistener function. Takes a # Convenience wrapper for the _setlistener function. Takes a
# single string or props.Node object in arg[0] indicating the # single string or props.Node object in arg[0] indicating the
# listened to property, and a function in arg[1]. # listened to property, a function in arg[1], and an optional
# bool in arg[2], which triggers the function initially if true.
# #
setlistener = func { setlistener = func {
_setlistener(isa(arg[0], props.Node) ? arg[0]._g : arg[0], arg[1]); if(isa(arg[0], props.Node)) { arg[0] = arg[0]._g; }
elsif(typeof(arg[0]) != "scalar") { return; }
_setlistener(arg[0], arg[1], size(arg) > 2 ? arg[2] : 0);
} }