Morris = window.Morris = {}
$ = jQuery
# Very simple event-emitter class.
#
# @private
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...)
# Make long numbers prettier by inserting commas.
#
# @example
# Morris.commas(1234567) -> '1,234,567'
Morris.commas = (num) ->
if num?
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
else
'-'
# Zero-pad numbers to two characters wide.
#
# @example
# Morris.pad2(1) -> '01'
Morris.pad2 = (number) -> (if number < 10 then '0' else '') + number
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