| 1 | noflo = require 'noflo'
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| 2 |
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| 3 | exports.getComponent = ->
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| 4 | c = new noflo.Component
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| 5 | c.description = 'Returns the value of a global variable.'
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| 6 | c.icon = 'usd'
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| 7 |
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| 8 |
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| 9 | c.inPorts.add 'name',
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| 10 | description: 'The name of the global variable.'
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| 11 |
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| 12 |
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| 13 | c.outPorts.add 'value',
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| 14 | description: 'The value of the variable.'
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| 15 |
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| 16 | c.outPorts.add 'error',
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| 17 | description: 'Any errors that occured reading the variables value.'
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| 18 |
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| 19 | c.forwardBrackets =
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| 20 | name: ['value', 'error']
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| 21 |
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| 22 | c.process (input, output) ->
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| 23 | return unless input.hasData 'name'
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| 24 | data = input.getData 'name'
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| 25 |
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| 26 | value = unless noflo.isBrowser() then global[data] else window[data]
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| 27 |
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| 28 | if typeof value is 'undefined'
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| 29 | err = new Error "\"#{data}\" is undefined on the global object."
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| 30 | output.sendDone err
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| 31 | return
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| 32 | output.sendDone
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| 33 | value: value
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