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49 lines
1.6 KiB
CoffeeScript
49 lines
1.6 KiB
CoffeeScript
# This file is loaded within Task's worker thread. It will attempt to invoke
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# any message with a 'method' and 'args' key on the global `handler` object. The
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# initial `handler` object contains the `start` method, which is called by the
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# task itself to relay information from the window thread and bootstrap the
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# worker's environment. The `start` method then replaces the handler with an
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# object required from the given `handlerPath`.
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self.window = {}
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self.attachEvent = ->
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self.console =
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warn: -> callTaskMethod 'warn', arguments...
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log: -> callTaskMethod 'log', arguments...
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error: -> callTaskMethod 'error', arguments...
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self.nodeRequire = self.require
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self.require = undefined
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window.document =
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createElement: ->
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setAttribute: ->
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getElementsByTagName: -> []
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appendChild: ->
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documentElement:
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insertBefore: ->
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removeChild: ->
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getElementById: -> {}
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createComment: -> {}
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createDocumentFragment: -> {}
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self.document = window.document
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# `callTaskMethod` can be used to invoke method's on the parent `Task` object
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# back in the window thread.
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self.callTaskMethod = (method, args...) ->
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postMessage(method: method, args: args)
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# The worker's initial handler replaces itself when `start` is invoked
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self.handler =
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start: ({resourcePath, globals, requirePath, handlerPath}) ->
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for key, value of globals
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self[key] = value
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window[key] = value
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importScripts(requirePath)
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require 'config'
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self.handler = require(handlerPath)
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callTaskMethod 'started'
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self.addEventListener 'message', ({data}) ->
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handler[data.method]?(data.args...) if data.method
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