morris.js/lib/morris.coffee

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Morris = window.Morris = {}
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$ = jQuery
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# Very simple event-emitter class.
#
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# @private
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class Morris.EventEmitter
on: (name, handler) ->
unless @handlers?
@handlers = {}
unless @handlers[name]?
@handlers[name] = []
@handlers[name].push(handler)
fire: (name, args...) ->
if @handlers? and @handlers[name]?
for handler in @handlers[name]
handler(args...)
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# Make long numbers prettier by inserting commas.
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#
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# @example
# Morris.commas(1234567) -> '1,234,567'
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Morris.commas = (num) ->
if num is null
"n/a"
else
ret = if num < 0 then "-" else ""
absnum = Math.abs(num)
intnum = Math.floor(absnum).toFixed(0)
ret += intnum.replace(/(?=(?:\d{3})+$)(?!^)/g, ',')
strabsnum = absnum.toString()
if strabsnum.length > intnum.length
ret += strabsnum.slice(intnum.length)
ret
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# Zero-pad numbers to two characters wide.
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#
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# @example
# Morris.pad2(1) -> '01'
Morris.pad2 = (number) -> (if number < 10 then '0' else '') + number